Merge pull request #89 from inkarkat/individual-help-enhancement

Individual help enhancement

.gitignore

@@ -1,3 +1,6 @@
 VERSION-FILE
 tests/test-results
 tests/trash\ directory.*
+done.txt
+report.txt
+todo.txt

README.textile

@@ -21,6 +21,7 @@ h2. Quick Links
 * Original anemic release by "Gina Trapani":http://ginatrapani.org on 5/11/2006.
 * Raised to great heights by "brainy and dedicated volunteers":http://github.com/ginatrapani/todo.txt-cli/network.
 * Licensed under the "GPL":http://www.gnu.org/copyleft/gpl.html
-* "Add-on Directory":http://wiki.github.com/ginatrapani/todo.txt-cli/todosh-add-on-directory
+* "Add-on Directory":https://github.com/ginatrapani/todo.txt-cli/wiki/Todo.sh-Add-on-Directory
+https://github.com/ginatrapani/todo.txt-cli/wiki/Creating-and-Installing-Add-ons
 * "Changelog":http://wiki.github.com/ginatrapani/todo.txt-cli/todosh-changelog
 * "Known Bugs":http://github.com/ginatrapani/todo.txt-cli/issues

tests/README

@@ -125,10 +125,10 @@ Writing Tests
 -------------
 
 The test script is written as a shell script.  It should start
-with the standard "#!/bin/sh" with copyright notices, and an
+with the standard "#!/bin/bash" with copyright notices, and an
 assignment to variable 'test_description', like this:
 
-	#!/bin/sh
+	#!/bin/bash
 	#
 	# Copyright (c) 2005 Junio C Hamano
 	#
@@ -186,6 +186,24 @@ library for your script to use.
    expected output.  (See below for how to generate transcripts
    easily.)
 
+ - test_todo_completion <message> <cmdline> <completions>
+
+   This takes three strings as parameter.  Based on <cmdline>,
+   the todo_completion script is triggered in the current test
+   environment and completions are compared with <completions>,
+   which should be a space-separated list.  If any completion
+   contains whitespace, quote it; the entire <completions>
+   argument is eval()'ed.
+   Include a trailing space in <cmdline> when you want to check
+   new argument completion; otherwise, completion is triggered
+   with the context of the last argument. <message> should state
+   what it is testing.
+
+ - test_todo_custom_completion <completefunc> <message> <cmdline> <completions>
+
+   Same as above, but in addition allows to specify a custom
+   completion function.
+
  - test_tick [interval]
 
    The test harness has an internal view of time which is
@@ -205,6 +223,13 @@ library for your script to use.
 	    'git-write-tree should be able to write an empty tree.' \
 	    'tree=$(git-write-tree)'
 
+ - test_expect_code <code> <message> <script>
+
+   This takes an exit status and two strings as parameter, and
+   evaluates the <script>.  If it yields <code>, test is
+   considered successful.  <message> should state what it is
+   testing.
+
  - test_expect_failure <message> <script>
 
    This is NOT the opposite of test_expect_success, but is used

tests/actions-test-lib.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+make_action()
+{
+    unset TODO_ACTIONS_DIR
+    [ -d .todo.actions.d ] || mkdir .todo.actions.d
+    cat > ".todo.actions.d/$1" <<EOF
+#!/bin/bash
+[ "\$1" = "usage" ] && {
+    echo "    $1 ITEM#[, ITEM#, ...] [TERM...]"
+    echo "      This custom action does $1."
+    echo ""
+    exit
+}
+echo "custom action $1"
+EOF
+chmod +x ".todo.actions.d/$1"
+}

tests/aggregate-results.sh

@@ -1,4 +1,57 @@
-#!/bin/sh
+#!/bin/bash
+
+[ "x$TERM" != "xdumb" ] && (
+		export TERM &&
+		[ -t 1 ] &&
+		tput bold >/dev/null 2>&1 &&
+		tput setaf 1 >/dev/null 2>&1 &&
+		tput sgr0 >/dev/null 2>&1
+	) &&
+	color=t
+
+case "$1" in
+--no-color)
+	color=; shift ;;
+esac
+
+if test -n "$color"; then
+	say_color () {
+		(
+		export TERM
+		case "$1" in
+			error) tput bold; tput setaf 1;; # bold red
+			skip)  tput bold; tput setaf 2;; # bold green
+			pass)  tput setaf 2;;            # green
+			info)  tput setaf 3;;            # brown
+			*) test -n "$quiet" && return;;
+		esac
+		shift
+		printf "* %s" "$*"
+		tput sgr0
+		echo
+		)
+	}
+else
+	say_color() {
+		test -z "$1" && test -n "$quiet" && return
+		shift
+		echo "* $*"
+	}
+fi
+
+get_color()
+{
+	# Only use the supplied color if there are actually instances of that
+	# type, so that a clean test run does not distract the user by the
+	# appearance of the error highlighting.
+	if [ ${1:?} -eq 0 ]
+	then
+		echo 'info'
+	else
+		echo "${2:-info}"
+	fi
+}
+
 
 fixed=0
 success=0
@@ -27,8 +80,8 @@ do
 	done <"$file"
 done
 
-printf "%-8s%d\n" fixed $fixed
+say_color 'info'                           "$(printf "%-8s%d\n" fixed $fixed)"
-printf "%-8s%d\n" success $success
+say_color "$(get_color "$success" 'pass')" "$(printf "%-8s%d\n" success $success)"
-printf "%-8s%d\n" failed $failed
+say_color "$(get_color "$failed" 'error')" "$(printf "%-8s%d\n" failed $failed)"
-printf "%-8s%d\n" broken $broken
+say_color "$(get_color "$broken" 'error')" "$(printf "%-8s%d\n" broken $broken)"
-printf "%-8s%d\n" total $total
+say_color 'info'                           "$(printf "%-8s%d\n" total $total)"

tests/t0000-config.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='todo.sh configuration file location
 

tests/t0001-null.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='todo.sh basic null functionality test.
 
@@ -45,6 +45,8 @@ test_expect_success 'null listpri a' '
 cat > expect <<EOF
 --
 TODO: 0 of 0 tasks shown
+DONE: 0 of 0 tasks shown
+total 0 of 0 tasks shown
 EOF
 
 test_expect_success 'null lsa' '

tests/t0002-actions.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='todo.sh actions.d
 

tests/t0100-code-nobacktick.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='no old-style backtick command substitution
 
@@ -9,8 +9,15 @@ On failure, it will print each offending line number and line.
 '
 . ./test-lib.sh
 
+backtick_check()
+{
+    sed -n -e 's/\(^\|[ \t]\)#.*//' -e '/`/{' -e '=;p' -e '}' "$@"
+}
+
 test_todo_session 'no old-style backtick command substitution' <<EOF
->>> sed -n -e 's/\(^\|[ \t]\)#.*//' -e '/\`/{' -e '=;p' -e '}' "$(which todo.sh)"
+>>> backtick_check bin/todo.sh
+
+>>> backtick_check ../../todo.cfg
 EOF
 
 test_done

tests/t1000-addlist.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='basic add and list functionality
 

tests/t1010-add-date.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='test the date on add feature
 

tests/t1020-addtolistfile.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='basic addto and list functionality
 
@@ -39,6 +39,24 @@ GARDEN: 2 added.
 GARDEN: 2 of 2 tasks shown
 EOF
 
+#
+# List available files
+#
+test_todo_session 'list available files' <<EOF
+>>> todo.sh listfile
+Files in the todo.txt directory:
+done.txt
+garden.txt
+report.txt
+todo.txt
+
+>>> TODOTXT_VERBOSE=0 todo.sh listfile
+done.txt
+garden.txt
+report.txt
+todo.txt
+EOF
+
 #
 # Filter
 #

tests/t1030-addto-date.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='test the date on addto feature
 

tests/t1100-replace.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='basic replace functionality
 
@@ -164,4 +164,12 @@ TODO: Replaced task with:
 1 (A) 2010-07-04 this also has a new date
 EOF
 
+echo '2009-02-13 this is just a new one' > todo.txt
+test_todo_session 'replace with prepended priority and date replaces existing date' <<EOF
+>>> todo.sh replace 1 '(B) 2010-07-04 this also has a new date'
+1 2009-02-13 this is just a new one
+TODO: Replaced task with:
+1 (B) 2010-07-04 this also has a new date
+EOF
+
 test_done

tests/t1200-pri.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='basic priority functionality
 '
@@ -66,6 +66,12 @@ TODO: 4 added.
 TODO: 4 of 4 tasks shown
 EOF
 
+test_todo_session 'priority error' <<EOF
+>>> todo.sh pri 10 B
+=== 1
+TODO: No task 10.
+EOF
+
 cat > todo.txt <<EOF
 (B) smell the uppercase Roses +flowers @outside
 (C) notice the sunflowers

tests/t1250-listpri.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='list priority functionality
 '
@@ -61,6 +61,42 @@ TODO: 0 of 5 tasks shown
 TODO: 0 of 5 tasks shown
 EOF
 
+cat > todo.txt <<EOF
+(B) smell the uppercase Roses +flowers @outside
+(X) clean the house from A-Z
+(C) notice the sunflowers
+(X) listen to music
+buy more records from artists A-Z
+EOF
+test_todo_session 'listpri filtering priority ranges' <<EOF
+>>> todo.sh -p listpri a-c
+1 (B) smell the uppercase Roses +flowers @outside
+3 (C) notice the sunflowers
+--
+TODO: 2 of 5 tasks shown
+
+>>> todo.sh -p listpri c-Z
+3 (C) notice the sunflowers
+2 (X) clean the house from A-Z
+4 (X) listen to music
+--
+TODO: 3 of 5 tasks shown
+
+>>> todo.sh -p listpri A-
+2 (X) clean the house from A-Z
+--
+TODO: 1 of 5 tasks shown
+
+>>> todo.sh -p listpri A-C A-Z
+--
+TODO: 0 of 5 tasks shown
+
+>>> todo.sh -p listpri X A-Z
+2 (X) clean the house from A-Z
+--
+TODO: 1 of 5 tasks shown
+EOF
+
 cat > todo.txt <<EOF
 (B) ccc xxx this line should be third.
 ccc xxx this line should be third.

tests/t1260-listprj.sh

@@ -1,42 +0,0 @@
-#!/bin/sh
-
-test_description='list project functionality
-'
-. ./test-lib.sh
-
-cat > todo.txt <<EOF
-(B) smell the uppercase Roses +roses @outside +shared
-(C) notice the sunflowers +sunflowers @garden +shared +landscape
-stop
-EOF
-test_todo_session 'basic listproj' <<EOF
->>> todo.sh listproj
-+landscape
-+roses
-+shared
-+sunflowers
-EOF
-
-test_todo_session 'listproj with context' <<EOF
->>> todo.sh listproj @garden
-+landscape
-+shared
-+sunflowers
-EOF
-
-TEST_TODO_CUSTOM=todo-custom.cfg
-cat todo.cfg > "$TEST_TODO_CUSTOM"
-cat >> "$TEST_TODO_CUSTOM" <<'EOF'
-export DEFAULT='</color>'
-export PRI_B='<color type=green>'
-export PRI_C='<color type=blue>'
-export TODOTXT_FINAL_FILTER='grep -i roses'
-EOF
-test_todo_session 'listproj with context special cases' <<EOF
->>> todo.sh -+ -d "$TEST_TODO_CUSTOM" listproj @garden
-+landscape
-+shared
-+sunflowers
-EOF
-
-test_done

tests/t1300-ls.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 
 test_description='list functionality
@@ -53,6 +53,18 @@ test_todo_session 'checking TODOTXT_FINAL_FILTER' <<EOF
 TODO: 3 of 3 tasks shown
 EOF
 
+#
+# check the custom hiding
+#
+test_todo_session 'checking HIDE_CUSTOM_SUBSTITUTION' <<EOF
+>>> HIDE_CUSTOM_SUBSTITUTION='[tT]h' todo.sh ls
+2 aaa zzz is line should be first.
+3 bbb yyy is line should be second.
+1 ccc xxx is line should be ird.
+--
+TODO: 3 of 3 tasks shown
+EOF
+
 #
 # check the filtering of TERM
 #
@@ -73,6 +85,29 @@ TODO: 1 of 3 tasks shown
 TODO: 1 of 3 tasks shown
 EOF
 
+#
+# check negative filtering via -TERM
+#
+test_todo_session 'checking negative filtering via -TERM' <<EOF
+>>> todo.sh ls -second
+2 aaa zzz this line should be first.
+1 ccc xxx this line should be third.
+--
+TODO: 2 of 3 tasks shown
+
+>>> todo.sh ls "-should be f"
+3 bbb yyy this line should be second.
+1 ccc xxx this line should be third.
+--
+TODO: 2 of 3 tasks shown
+
+>>> todo.sh ls "- zzz"
+3 bbb yyy this line should be second.
+1 ccc xxx this line should be third.
+--
+TODO: 2 of 3 tasks shown
+EOF
+
 #
 # check the filtering of TERM with regexp
 #

tests/t1310-listcon.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 
 test_description='listcon functionality
@@ -55,4 +55,33 @@ test_todo_session 'listcon e-mail address test' <<EOF
 @con02
 EOF
 
+cat > todo.txt <<EOF
+(B) smell the uppercase Roses +roses @outside +shared
+(C) notice the sunflowers +sunflowers @garden +shared +landscape
+stop
+EOF
+test_todo_session 'listcon with project' <<EOF
+>>> todo.sh listcon +landscape
+@garden
+EOF
+
+cat > todo.txt <<EOF
+@con01 -- Some context 1 task
+EOF
+cat > done.txt <<EOF
+x 2012-02-21 @done01 -- Some context 1 done task
+x 2012-02-21 @done02 -- Some context 2 done task
+EOF
+test_todo_session 'listcon from done tasks' <<'EOF'
+>>> TODOTXT_SOURCEVAR=\$DONE_FILE todo.sh listcon
+@done01
+@done02
+EOF
+test_todo_session 'listcon from combined open + done tasks' <<'EOF'
+>>> TODOTXT_SOURCEVAR='("$TODO_FILE" "$DONE_FILE")' todo.sh listcon
+@con01
+@done01
+@done02
+EOF
+
 test_done

tests/t1320-listproj.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 
 test_description='listproj functionality
@@ -55,4 +55,63 @@ test_todo_session 'listproj embedded + test' <<EOF
 +prj02
 EOF
 
+cat > todo.txt <<EOF
+(B) smell the uppercase Roses +roses @outside +shared
+(C) notice the sunflowers +sunflowers @garden +shared +landscape
+stop
+EOF
+test_todo_session 'basic listproj' <<EOF
+>>> todo.sh listproj
++landscape
++roses
++shared
++sunflowers
+EOF
+
+test_todo_session 'listproj with context' <<EOF
+>>> todo.sh listproj @garden
++landscape
++shared
++sunflowers
+EOF
+
+TEST_TODO_CUSTOM=todo-custom.cfg
+cat todo.cfg > "$TEST_TODO_CUSTOM"
+cat >> "$TEST_TODO_CUSTOM" <<'EOF'
+export DEFAULT='</color>'
+export PRI_B='<color type=green>'
+export PRI_C='<color type=blue>'
+export TODOTXT_FINAL_FILTER='grep -i roses'
+EOF
+test_todo_session 'listproj with context special cases' <<EOF
+>>> todo.sh -+ -d "$TEST_TODO_CUSTOM" listproj @garden
++landscape
++shared
++sunflowers
+EOF
+
+
+cat > todo.txt <<EOF
++prj01 -- Some project 1 task
+EOF
+cat > done.txt <<EOF
+x 2012-02-21 +done01 -- Special project 1 done task
+x 2012-02-21 +done02 -- Some project 2 done task
+EOF
+test_todo_session 'listproj from done tasks' <<'EOF'
+>>> TODOTXT_SOURCEVAR=\$DONE_FILE todo.sh listproj
++done01
++done02
+EOF
+test_todo_session 'listproj from done tasks with filtering' <<'EOF'
+>>> TODOTXT_SOURCEVAR=\$DONE_FILE todo.sh listproj Special
++done01
+EOF
+test_todo_session 'listproj from combined open + done tasks' <<'EOF'
+>>> TODOTXT_SOURCEVAR='("$TODO_FILE" "$DONE_FILE")' todo.sh listproj
++done01
++done02
++prj01
+EOF
+
 test_done

tests/t1330-ls-highlighting.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 
 test_description='list highlighting

tests/t1350-listall.sh

@@ -0,0 +1,150 @@
+#!/bin/bash
+
+test_description='listall functionality
+'
+. ./test-lib.sh
+
+cat > todo.txt <<EOF
+smell the uppercase Roses +flowers @outside
+x 2011-08-08 tend the garden @outside
+notice the sunflowers
+x 2011-12-26 go outside +wakeup
+(A) stop
+EOF
+cat > done.txt <<EOF
+x 2011-12-01 eat breakfast
+x 2011-12-05 smell the coffee +wakeup
+EOF
+
+test_todo_session 'basic listall' <<EOF
+>>> todo.sh -p listall
+5 (A) stop
+3 notice the sunflowers
+1 smell the uppercase Roses +flowers @outside
+2 x 2011-08-08 tend the garden @outside
+0 x 2011-12-01 eat breakfast
+0 x 2011-12-05 smell the coffee +wakeup
+4 x 2011-12-26 go outside +wakeup
+--
+TODO: 5 of 5 tasks shown
+DONE: 2 of 2 tasks shown
+total 7 of 7 tasks shown
+EOF
+
+test_todo_session 'listall highlighting' <<EOF
+>>> todo.sh listall
+5 (A) stop
+3 notice the sunflowers
+1 smell the uppercase Roses +flowers @outside
+2 x 2011-08-08 tend the garden @outside
+0 x 2011-12-01 eat breakfast
+0 x 2011-12-05 smell the coffee +wakeup
+4 x 2011-12-26 go outside +wakeup
+--
+TODO: 5 of 5 tasks shown
+DONE: 2 of 2 tasks shown
+total 7 of 7 tasks shown
+EOF
+
+test_todo_session 'listall nonverbose' <<EOF
+>>> TODOTXT_VERBOSE=0 todo.sh -p listall
+5 (A) stop
+3 notice the sunflowers
+1 smell the uppercase Roses +flowers @outside
+2 x 2011-08-08 tend the garden @outside
+0 x 2011-12-01 eat breakfast
+0 x 2011-12-05 smell the coffee +wakeup
+4 x 2011-12-26 go outside +wakeup
+EOF
+
+test_todo_session 'listall filtering' <<EOF
+>>> todo.sh -p listall @outside
+1 smell the uppercase Roses +flowers @outside
+2 x 2011-08-08 tend the garden @outside
+--
+TODO: 2 of 5 tasks shown
+DONE: 0 of 2 tasks shown
+total 2 of 7 tasks shown
+
+>>> todo.sh -p listall the
+3 notice the sunflowers
+1 smell the uppercase Roses +flowers @outside
+2 x 2011-08-08 tend the garden @outside
+0 x 2011-12-05 smell the coffee +wakeup
+--
+TODO: 3 of 5 tasks shown
+DONE: 1 of 2 tasks shown
+total 4 of 7 tasks shown
+
+>>> todo.sh -p listall breakfast
+0 x 2011-12-01 eat breakfast
+--
+TODO: 0 of 5 tasks shown
+DONE: 1 of 2 tasks shown
+total 1 of 7 tasks shown
+
+>>> todo.sh -p listall doesnotmatch
+--
+TODO: 0 of 5 tasks shown
+DONE: 0 of 2 tasks shown
+total 0 of 7 tasks shown
+EOF
+
+cat >> done.txt <<EOF
+x 2010-01-01 old task 1
+x 2010-01-01 old task 2
+x 2010-01-01 old task 3
+x 2010-01-01 old task 4
+EOF
+test_todo_session 'listall number width' <<EOF
+>>> todo.sh -p listall
+5 (A) stop
+3 notice the sunflowers
+1 smell the uppercase Roses +flowers @outside
+0 x 2010-01-01 old task 1
+0 x 2010-01-01 old task 2
+0 x 2010-01-01 old task 3
+0 x 2010-01-01 old task 4
+2 x 2011-08-08 tend the garden @outside
+0 x 2011-12-01 eat breakfast
+0 x 2011-12-05 smell the coffee +wakeup
+4 x 2011-12-26 go outside +wakeup
+--
+TODO: 5 of 5 tasks shown
+DONE: 6 of 6 tasks shown
+total 11 of 11 tasks shown
+
+>>> TODOTXT_VERBOSE=0 todo.sh add new task 1
+
+>>> TODOTXT_VERBOSE=0 todo.sh add new task 2
+
+>>> TODOTXT_VERBOSE=0 todo.sh add new task 3
+
+>>> TODOTXT_VERBOSE=0 todo.sh add new task 4
+
+>>> TODOTXT_VERBOSE=0 todo.sh add new task 5
+
+>>> todo.sh -p listall
+05 (A) stop
+06 new task 1
+07 new task 2
+08 new task 3
+09 new task 4
+10 new task 5
+03 notice the sunflowers
+01 smell the uppercase Roses +flowers @outside
+00 x 2010-01-01 old task 1
+00 x 2010-01-01 old task 2
+00 x 2010-01-01 old task 3
+00 x 2010-01-01 old task 4
+02 x 2011-08-08 tend the garden @outside
+00 x 2011-12-01 eat breakfast
+00 x 2011-12-05 smell the coffee +wakeup
+04 x 2011-12-26 go outside +wakeup
+--
+TODO: 10 of 10 tasks shown
+DONE: 6 of 6 tasks shown
+total 16 of 16 tasks shown
+EOF
+
+test_done

tests/t1400-prepend.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='basic prepend functionality
 '

tests/t1500-do.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='do functionality
 '

tests/t1600-append.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='basic append functionality
 

tests/t1700-depri.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='basic depriority functionality
 '

tests/t1800-del.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='basic del functionality
 '

tests/t1900-archive.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+test_description='archive functionality
+
+Ensure we can archive items successfully.
+'
+. ./test-lib.sh
+
+cat > todo.txt <<EOF
+one
+two
+three
+one
+x done
+four
+EOF
+
+test_todo_session 'archive with duplicates' <<EOF
+>>> todo.sh archive
+x done
+TODO: $HOME/todo.txt archived.
+EOF
+
+test_todo_session 'list after archive' <<EOF
+>>> todo.sh ls
+5 four
+1 one
+4 one
+3 three
+2 two
+--
+TODO: 5 of 5 tasks shown
+EOF
+
+test_done

tests/t1910-deduplicate.sh

@@ -0,0 +1,103 @@
+#!/bin/bash
+
+test_description='deduplicate functionality
+
+Ensure we can deduplicate items successfully.
+'
+. ./test-lib.sh
+
+cat > todo.txt <<EOF
+duplicated
+two
+x done
+duplicated
+double task
+double task
+three
+EOF
+
+test_todo_session 'deduplicate and preserve line numbers' <<EOF
+>>> todo.sh deduplicate
+TODO: 2 duplicate task(s) removed
+
+>>> todo.sh -p ls
+5 double task
+1 duplicated
+7 three
+2 two
+3 x done
+--
+TODO: 5 of 5 tasks shown
+EOF
+
+test_todo_session 'deduplicate without duplicates' <<EOF
+>>> todo.sh deduplicate
+TODO: No duplicate tasks found
+EOF
+
+cat > todo.txt <<EOF
+duplicated
+two
+x done
+duplicated
+double task
+double task
+three
+EOF
+test_todo_session 'deduplicate and delete lines' <<EOF
+>>> todo.sh -n deduplicate
+TODO: 2 duplicate task(s) removed
+
+>>> todo.sh -p ls
+4 double task
+1 duplicated
+5 three
+2 two
+3 x done
+--
+TODO: 5 of 5 tasks shown
+EOF
+
+cat > todo.txt <<EOF
+one
+duplicated
+three
+duplicated
+duplicated
+six
+duplicated
+EOF
+test_todo_session 'deduplicate more than two occurrences' <<EOF
+>>> todo.sh deduplicate
+TODO: 3 duplicate task(s) removed
+
+>>> todo.sh -p ls
+2 duplicated
+1 one
+6 six
+3 three
+--
+TODO: 4 of 4 tasks shown
+EOF
+
+cat > todo.txt <<EOF
+normal task
+a bold task
+something else
+a bold task
+something more
+EOF
+test_todo_session 'deduplicate with non-printable duplicates' <<EOF
+>>> todo.sh deduplicate
+TODO: 1 duplicate task(s) removed
+
+>>> todo.sh -p ls
+2 a bold task
+1 normal task
+3 something else
+5 something more
+--
+TODO: 4 of 4 tasks shown
+EOF
+
+test_done

tests/t1950-report.sh

@@ -0,0 +1,96 @@
+#!/bin/bash
+
+test_description='report functionality
+
+This test checks the reporting and the format of the report file.
+'
+. ./test-lib.sh
+
+cat > todo.txt <<EOF
+(B) smell the uppercase Roses +flowers @outside
+stop and think
+smell the coffee +wakeup
+make the coffee +wakeup
+visit http://example.com
+EOF
+
+test_todo_session 'create new report' <<EOF
+>>> todo.sh report
+TODO: $HOME/todo.txt archived.
+2009-02-13T04:40:00 5 0
+TODO: Report file updated.
+
+>>> todo.sh -p list
+1 (B) smell the uppercase Roses +flowers @outside
+4 make the coffee +wakeup
+3 smell the coffee +wakeup
+2 stop and think
+5 visit http://example.com
+--
+TODO: 5 of 5 tasks shown
+EOF
+
+test_todo_session 'report of done tasks' <<EOF
+>>> todo.sh -A do 3
+3 x 2009-02-13 smell the coffee +wakeup
+TODO: 3 marked as done.
+x 2009-02-13 smell the coffee +wakeup
+TODO: $HOME/todo.txt archived.
+
+>>> todo.sh report
+TODO: $HOME/todo.txt archived.
+2009-02-13T04:40:00 4 1
+TODO: Report file updated.
+
+>>> todo.sh -p list
+1 (B) smell the uppercase Roses +flowers @outside
+3 make the coffee +wakeup
+2 stop and think
+4 visit http://example.com
+--
+TODO: 4 of 4 tasks shown
+EOF
+
+test_todo_session 'report performs archiving' <<EOF
+>>> todo.sh -a do 3
+3 x 2009-02-13 make the coffee +wakeup
+TODO: 3 marked as done.
+
+>>> todo.sh report
+x 2009-02-13 make the coffee +wakeup
+TODO: $HOME/todo.txt archived.
+2009-02-13T04:40:00 3 2
+TODO: Report file updated.
+
+>>> todo.sh -p list
+1 (B) smell the uppercase Roses +flowers @outside
+2 stop and think
+3 visit http://example.com
+--
+TODO: 3 of 3 tasks shown
+
+>>> todo.sh -p listfile done.txt
+2 x 2009-02-13 make the coffee +wakeup
+1 x 2009-02-13 smell the coffee +wakeup
+--
+DONE: 2 of 2 tasks shown
+EOF
+
+test_todo_session 'report is unchanged when no changes' <<EOF
+>>> cat report.txt
+2009-02-13T04:40:00 5 0
+2009-02-13T04:40:00 4 1
+2009-02-13T04:40:00 3 2
+
+>>> todo.sh report
+TODO: $HOME/todo.txt archived.
+2009-02-13T04:40:00 3 2
+TODO: Report file is up-to-date.
+
+>>> cat report.txt
+2009-02-13T04:40:00 5 0
+2009-02-13T04:40:00 4 1
+2009-02-13T04:40:00 3 2
+EOF
+
+test_done

tests/t2000-multiline.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='Multi-line functionality'
 
@@ -8,18 +8,18 @@ test_description='Multi-line functionality'
 # Create the expected file
 echo "1 smell the cheese
 TODO: Replaced task with:
-1 eat apples eat oranges drink milk">$HOME/expect.multi
+1 eat apples eat oranges drink milk">"$HOME/expect.multi"
 
 test_expect_success 'multiline squash item replace' '
 (
 # Prepare single line todo file
-cat /dev/null > $HOME/todo.txt
+cat /dev/null > "$HOME/todo.txt"
 "$HOME/bin/todo.sh" add smell the cheese
 
 # Run replace
 "$HOME/bin/todo.sh" replace 1 "eat apples
 eat oranges
-drink milk" > $HOME/output.multi
+drink milk" > "$HOME/output.multi"
 
 # Test output against expected
 diff "$HOME/output.multi" "$HOME/expect.multi"
@@ -34,18 +34,18 @@ fi
 ## Add test
 # Create the expected file
 echo "2 eat apples eat oranges drink milk
-TODO: 2 added.">$HOME/expect.multi
+TODO: 2 added.">"$HOME/expect.multi"
 
 test_expect_success 'multiline squash item add' '
 (
 # Prepare single line todo file
-cat /dev/null > $HOME/todo.txt
+cat /dev/null > "$HOME/todo.txt"
 "$HOME/bin/todo.sh" add smell the cheese
 
 # Run add
 "$HOME/bin/todo.sh" add "eat apples
 eat oranges
-drink milk" > $HOME/output.multi
+drink milk" > "$HOME/output.multi"
 
 # Test output against expected
 diff "$HOME/output.multi" "$HOME/expect.multi"
@@ -59,18 +59,18 @@ fi
 
 ## Append test
 # Create the expected file
-echo "1 smell the cheese eat apples eat oranges drink milk">$HOME/expect.multi
+echo "1 smell the cheese eat apples eat oranges drink milk">"$HOME/expect.multi"
 
 test_expect_success 'multiline squash item append' '
 (
 # Prepare single line todo file
-cat /dev/null > $HOME/todo.txt
+cat /dev/null > "$HOME/todo.txt"
 "$HOME/bin/todo.sh" add smell the cheese
 
 # Run append
 "$HOME/bin/todo.sh" append 1 "eat apples
 eat oranges
-drink milk" > $HOME/output.multi
+drink milk" > "$HOME/output.multi"
 
 # Test output against expected
 diff "$HOME/output.multi" "$HOME/expect.multi"
@@ -84,18 +84,18 @@ fi
 
 ## Prepend test
 # Create the expected file
-echo "1 eat apples eat oranges drink milk smell the cheese">$HOME/expect.multi
+echo "1 eat apples eat oranges drink milk smell the cheese">"$HOME/expect.multi"
 
 test_expect_success 'multiline squash item prepend' '
 (
 # Prepare single line todo file
-cat /dev/null > $HOME/todo.txt
+cat /dev/null > "$HOME/todo.txt"
 "$HOME/bin/todo.sh" add smell the cheese
 
 # Run prepend
 "$HOME/bin/todo.sh" prepend 1 "eat apples
 eat oranges
-drink milk" > $HOME/output.multi
+drink milk" > "$HOME/output.multi"
 
 # Test output against expected
 diff "$HOME/output.multi" "$HOME/expect.multi"
@@ -110,18 +110,18 @@ fi
 ## Multiple line addition
 # Create the expected file
 echo "2 eat apples
-TODO: 2 added." > $HOME/expect.multi
+TODO: 2 added." > "$HOME/expect.multi"
 echo "3 eat oranges
-TODO: 3 added." >>$HOME/expect.multi
+TODO: 3 added." >>"$HOME/expect.multi"
 echo "4 drink milk
-TODO: 4 added." >> $HOME/expect.multi
+TODO: 4 added." >>"$HOME/expect.multi"
 
 test_expect_success 'actual multiline add' '
 (
 # Run addm
 "$HOME/bin/todo.sh" addm "eat apples
 eat oranges
-drink milk" > $HOME/output.multi
+drink milk" > "$HOME/output.multi"
 
 # Test output against expected
 diff "$HOME/output.multi" "$HOME/expect.multi"

tests/t2100-help.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+#
+
+test_description='help functionality
+
+This test covers the help output.
+'
+. ./actions-test-lib.sh
+. ./test-lib.sh
+
+# Note: To avoid having to adapt the test whenever the help documentation
+# slightly changes, only check for the section headers.
+test_todo_session 'help output' <<EOF
+>>> todo.sh help | sed '/^  [A-Z]/!d'
+  Usage: todo.sh [-fhpantvV] [-d todo_config] action [task_number] [task_description]
+  Options:
+  Built-in Actions:
+EOF
+
+test_todo_session 'verbose help output' <<EOF
+>>> todo.sh -v help | sed '/^  [A-Z]/!d'
+  Usage: todo.sh [-fhpantvV] [-d todo_config] action [task_number] [task_description]
+  Options:
+  Built-in Actions:
+EOF
+
+test_todo_session 'very verbose help output' <<EOF
+>>> todo.sh -vv help | sed '/^  [A-Z]/!d'
+  Usage: todo.sh [-fhpantvV] [-d todo_config] action [task_number] [task_description]
+  Options:
+  Environment variables:
+  Built-in Actions:
+EOF
+
+make_action "foo"
+test_todo_session 'help output with custom action' <<EOF
+>>> todo.sh -v help | sed '/^  [A-Z]/!d'
+  Usage: todo.sh [-fhpantvV] [-d todo_config] action [task_number] [task_description]
+  Options:
+  Built-in Actions:
+  Add-on Actions:
+EOF
+
+test_done

tests/t2110-help-action.sh

@@ -0,0 +1,66 @@
+#!/bin/bash
+
+test_description='built-in actions help functionality
+
+This test checks listing the usage help of a built-in action.
+'
+. ./test-lib.sh
+
+test_todo_session 'nonexisting action help' <<'EOF'
+>>> todo.sh help doesnotexist
+TODO: No action "doesnotexist" exists.
+=== 1
+
+>>> todo.sh help hel
+TODO: No action "hel" exists.
+=== 1
+
+>>> todo.sh help h
+TODO: No action "h" exists.
+=== 1
+EOF
+
+test_todo_session 'single action help' <<'EOF'
+>>> todo.sh help shorthelp
+    shorthelp
+      List the one-line usage of all built-in and add-on actions.
+\
+EOF
+
+test_todo_session 'multiple actions help' <<'EOF'
+>>> todo.sh help shorthelp append
+    shorthelp
+      List the one-line usage of all built-in and add-on actions.
+\
+    append ITEM# "TEXT TO APPEND"
+    app ITEM# "TEXT TO APPEND"
+      Adds TEXT TO APPEND to the end of the task on line ITEM#.
+      Quotes optional.
+\
+EOF
+
+test_todo_session 'short and long form of action help' <<'EOF'
+>>> todo.sh help append
+    append ITEM# "TEXT TO APPEND"
+    app ITEM# "TEXT TO APPEND"
+      Adds TEXT TO APPEND to the end of the task on line ITEM#.
+      Quotes optional.
+\
+
+>>> todo.sh help app
+    app ITEM# "TEXT TO APPEND"
+      Adds TEXT TO APPEND to the end of the task on line ITEM#.
+      Quotes optional.
+\
+EOF
+
+test_todo_session 'mixed existing and nonexisting action help' <<'EOF'
+>>> todo.sh help shorthelp doesnotexist list
+    shorthelp
+      List the one-line usage of all built-in and add-on actions.
+\
+TODO: No action "doesnotexist" exists.
+=== 1
+EOF
+
+test_done

tests/t6000-completion.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+#
+
+test_description='Bash completion functionality
+
+This test checks basic todo_completion of actions and options
+'
+. ./test-lib.sh
+
+readonly ACTIONS='add a addto addm append app archive command del rm depri dp do help list ls listaddons listall lsa listcon lsc listfile lf listpri lsp listproj lsprj move mv prepend prep pri p replace report shorthelp'
+readonly OPTIONS='-@ -@@ -+ -++ -d -f -h -p -P -PP -a -n -t -v -vv -V -x'
+
+test_todo_completion 'all arguments' 'todo.sh ' "$ACTIONS $OPTIONS"
+test_todo_completion 'arguments beginning with a' 'todo.sh a' 'add a addto addm append app archive'
+test_todo_completion 'all options' 'todo.sh -' "$OPTIONS"
+test_todo_completion 'all actions after command action' 'todo.sh command ' "$ACTIONS"
+test_todo_completion 'all arguments after option' 'todo.sh -a ' "$ACTIONS $OPTIONS"
+test_todo_completion 'all arguments after options' 'todo.sh -a -p ' "$ACTIONS $OPTIONS"
+test_todo_completion 'all options after options' 'todo.sh -a -p -' "$OPTIONS"
+test_todo_completion 'nothing after action' 'todo.sh archive ' ''
+
+test_done

tests/t6010-completion-contexts.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+#
+
+test_description='Bash context completion functionality
+
+This test checks todo_completion of contexts
+'
+. ./test-lib.sh
+
+cat > todo.txt <<EOF
+(B) smell the +roses @outside @outdoor +shared
+notice the sunflowers +sunflowers @outside @garden +shared +landscape
+stop
+EOF
+cat > done.txt <<EOF
+x 2012-02-21 +herbs @oriental buy spices
+x 2012-02-21 +slack @home watch tv
+EOF
+test_todo_completion 'all contexts' 'todo.sh list @' '@garden @outdoor @outside'
+test_todo_completion 'contexts beginning with o' 'todo.sh list @o' '@outdoor @outside'
+test_todo_completion 'contexts beginning with outs' 'todo.sh list @outs' '@outside'
+test_todo_completion 'contexts beginning with x' 'todo.sh list @x' ''
+
+test_todo_completion 'contexts from done tasks beginning with h' 'todo.sh list @h' '@home'
+test_todo_completion 'contexts from done tasks beginning with or' 'todo.sh list @or' '@oriental'
+
+test_done

tests/t6020-completion-projects.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+#
+
+test_description='Bash project completion functionality
+
+This test checks todo_completion of projects
+'
+. ./test-lib.sh
+
+cat > todo.txt <<EOF
+(B) smell the +roses @outside @outdoor +shared
+notice the sunflowers +sunflowers @outside @garden +shared +landscape
+stop
+EOF
+cat > done.txt <<EOF
+x 2012-02-21 +herbs @oriental buy spices
+x 2012-02-21 +slack @home watch tv
+EOF
+test_todo_completion 'all projects' 'todo.sh list +' '+landscape +roses +shared +sunflowers'
+test_todo_completion 'projects beginning with s' 'todo.sh list +s' '+shared +sunflowers'
+test_todo_completion 'projects beginning with ro' 'todo.sh list +ro' '+roses'
+test_todo_completion 'projects beginning with x' 'todo.sh list +x' ''
+
+test_todo_completion 'projects from done tasks beginning with h' 'todo.sh list +h' '+herbs'
+test_todo_completion 'projects from done tasks beginning with sl' 'todo.sh list +sl' '+slack'
+
+test_done

tests/t6030-completion-tasks.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+#
+
+test_description='Bash task number completion functionality
+
+This test checks todo_completion of a task number into the abbreviated task text.
+'
+. ./test-lib.sh
+
+cat > todo.txt <<EOF
+simple task
+notice the sunflowers +sunflowers @outside @garden +shared +landscape
+(B) smell the +roses flower @outside @outdoor +shared
+(C) 2012-02-28 @outside mow the lawn
+x 2012-02-21 +herbs @oriental buy spices
+x 2012-02-28 2012-02-21 +slack @home watch tv
+2012-02-28 +herbs buy cinnamon @grocer
+EOF
+test_todo_completion 'simple task' 'todo.sh list 1' '"1 # simple task"'
+test_todo_completion 'remove projects and contents from task' 'todo.sh list 2' '"2 # notice the sunflowers"'
+test_todo_completion 'keep priority' 'todo.sh list 3' '"3 # (B) smell the flower"'
+test_todo_completion 'keep priority and remove timestamp' 'todo.sh list 4' '"4 # (C) mow the lawn"'
+test_todo_completion 'keep done marker and remove done date' 'todo.sh list 5' '"5 # x buy spices"'
+test_todo_completion 'keep done marker and remove timestamp and done date' 'todo.sh list 6' '"6 # x watch tv"'
+test_todo_completion 'remove add date' 'todo.sh list 7' '"7 # buy cinnamon"'
+
+test_done

tests/t6040-completion-files.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+#
+
+test_description='Bash todo file completion functionality
+
+This test checks todo_completion of files in TODO_DIR.
+'
+. ./test-lib.sh
+
+> dummy.txt
+readonly FILES='done.txt dummy.txt report.txt todo.txt'
+test_todo_completion 'all files after addto' 'todo.sh addto ' "$FILES"
+test_todo_completion 'files beginning with d after addto' 'todo.sh addto d' 'done.txt dummy.txt'
+test_todo_completion 'all files after listfile' 'todo.sh listfile ' "$FILES"
+test_todo_completion 'all files after lf' 'todo.sh -v lf ' "$FILES"
+test_todo_completion 'nothing after move' 'todo.sh move ' ''
+test_todo_completion 'all files after move ITEM#' 'todo.sh move 1 ' "$FILES"
+test_todo_completion 'all files after mv ITEM#' 'todo.sh mv 1 ' "$FILES"
+test_todo_completion 'all files after move ITEM# DEST' 'todo.sh move 1 todo.sh ' "$FILES"
+
+test_done

tests/t6050-completion-addons.sh

@@ -0,0 +1,74 @@
+#!/bin/bash
+#
+
+test_description='Bash add-on action completion functionality
+
+This test checks todo_completion of custom actions in .todo.actions.d
+'
+. ./test-lib.sh
+
+readonly ACTIONS='add a addto addm append app archive command del rm depri dp do help list ls listaddons listall lsa listcon lsc listfile lf listpri lsp listproj lsprj move mv prepend prep pri p replace report shorthelp'
+readonly OPTIONS='-@ -@@ -+ -++ -d -f -h -p -P -PP -a -n -t -v -vv -V -x'
+
+readonly ADDONS='bar baz foobar'
+makeCustomActions()
+{
+    set -e
+    mkdir "${1:?}"
+    for addon in $ADDONS
+    do
+        addonFile="${1}/$addon"
+        > "$addonFile"
+        chmod +x "$addonFile"
+    done
+
+    # Also create a subdirectory, to test that it is skipped.
+    mkdir "${1}/subdir"
+
+    # Also create a non-executable file, to test that it is skipped.
+    datafile="${1:?}/datafile"
+    > "$datafile"
+    chmod -x "$datafile"
+    [ -x "$datafile" ] && rm "$datafile"    # Some file systems may always make files executable; then, skip this check.
+
+    set +e
+}
+removeCustomActions()
+{
+    set -e
+    rmdir "${1}/subdir"
+    rm "${1:?}/"*
+    rmdir "$1"
+    set +e
+}
+
+#
+# Test resolution of the default TODO_ACTIONS_DIR.
+#
+makeCustomActions "$HOME/.todo.actions.d"
+test_todo_completion 'all arguments' 'todo.sh ' "$ACTIONS $ADDONS $OPTIONS"
+test_todo_completion 'all arguments after option' 'todo.sh -a ' "$ACTIONS $ADDONS $OPTIONS"
+test_todo_completion 'all arguments beginning with b' 'todo.sh b' 'bar baz'
+test_todo_completion 'all arguments beginning with f after options' 'todo.sh -a -v f' 'foobar'
+test_todo_completion 'nothing after addon action' 'todo.sh foobar ' ''
+removeCustomActions "$HOME/.todo.actions.d"
+
+#
+# Test resolution of an alternative TODO_ACTIONS_DIR.
+#
+mkdir  "$HOME/.todo"
+makeCustomActions "$HOME/.todo/actions"
+test_todo_completion 'all arguments with actions from .todo/actions/' 'todo.sh ' "$ACTIONS $ADDONS $OPTIONS"
+removeCustomActions "$HOME/.todo/actions"
+
+#
+# Test resolution of a configured TODO_ACTIONS_DIR.
+#
+makeCustomActions "$HOME/addons"
+cat >> todo.cfg <<'EOF'
+export TODO_ACTIONS_DIR="$HOME/addons"
+EOF
+test_todo_completion 'all arguments with actions from addons/' 'todo.sh ' "$ACTIONS $ADDONS $OPTIONS"
+removeCustomActions "$HOME/addons"
+
+test_done

tests/t6080-completion-path.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+#
+
+test_description='Bash completion with different path functionality
+
+This test checks that todo_completion can use a different path to todo.sh when
+it is not accessible through PATH.
+'
+. ./test-lib.sh
+
+cat > todo.txt <<EOF
+(B) smell the +roses @outside @outdoor +shared
+notice the sunflowers +sunflowers @outside @garden +shared +landscape
+stop
+EOF
+
+mv bin/todo.sh bin/todo2.sh
+test_expect_success 'todo2.sh executable' 'todo2.sh list'
+
+# Define a second completion function that injects the different executable. In
+# real use, this would be installed via
+#   complete -F _todo2 todo2.sh
+_todo2()
+{
+    local _todo_sh='todo2.sh'
+    _todo "$@"
+}
+
+test_todo_custom_completion _todo2 'all todo2 contexts' 'todo2 list @' '@garden @outdoor @outside'
+
+
+
+# Remove the test environment's bin directory from the PATH, so that our test
+# executable must be launched with an explicit path.
+PATH=${PATH##"${PWD}/bin:"}
+test_expect_code 127 'todo2.sh executable not in PATH' 'todo2.sh'
+
+_todo2path()
+{
+    local _todo_sh='./bin/todo2.sh'
+    _todo "$@"
+}
+test_todo_custom_completion _todo2path 'all todo2 contexts' 'todo2 list @' '@garden @outdoor @outside'
+
+test_done

tests/t6090-completion-aliases.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+#
+
+test_description='Bash completion with different aliases functionality
+
+This test checks that todo_completion can use a different configuration
+when another todo.sh alias is defined that uses that configuration.
+'
+. ./test-lib.sh
+
+cat > todo.txt <<EOF
+(B) smell the +roses @outside @outdoor +shared
+notice the sunflowers +sunflowers @outside @garden +shared +landscape
+stop
+EOF
+cat > todo2.txt <<EOF
++herbs @oriental buy spices
++slack @home watch tv
+EOF
+
+cp todo.cfg todo2.cfg
+cat >> todo2.cfg <<'EOF'
+export TODO_FILE="$TODO_DIR/todo2.txt"
+EOF
+
+# Note: We cannot use aliases within the test framework, but functions are
+# equivalent and work fine.
+todo1()
+{
+    todo.sh "$@"
+}
+todo2()
+{
+    todo.sh -d "$HOME/todo2.cfg" "$@"
+}
+
+# Ensure that the test fixture works as planned.
+test_todo_session 'todo 1 and 2 contexts' <<EOF
+>>> todo1 listcon
+@garden
+@outdoor
+@outside
+
+>>> todo2 listcon
+@home
+@oriental
+EOF
+
+
+# Define a second completion function that injects the different configuration
+# file. In real use, this would be installed via
+#   complete -F _todo2 todo2
+_todo2()
+{
+    local _todo_sh='todo.sh -d "$HOME/todo2.cfg"'
+    _todo "$@"
+}
+
+test_todo_completion               'all todo1 contexts' 'todo1 list @' '@garden @outdoor @outside'
+test_todo_custom_completion _todo2 'all todo2 contexts' 'todo2 list @' '@home @oriental'
+
+test_done

tests/t6100-completion-help.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+#
+
+test_description='Bash help completion functionality
+
+This test checks todo_completion of actions for usage help.
+'
+. ./actions-test-lib.sh
+. ./test-lib.sh
+make_action "zany"
+make_action "aardvark"
+
+readonly ACTIONS='add a addto addm append app archive command del rm depri dp do help list ls listaddons listall lsa listcon lsc listfile lf listpri lsp listproj lsprj move mv prepend prep pri p replace report shorthelp'
+readonly ADDONS='aardvark zany'
+
+test_todo_completion 'all actions after help' 'todo.sh help ' "$ACTIONS $ADDONS"
+test_todo_completion 'all actions after command help' 'todo.sh command help ' "$ACTIONS $ADDONS"
+test_todo_completion 'actions beginning with a' 'todo.sh help a' 'add a addto addm append app archive aardvark'
+
+test_done

tests/t8000-actions.sh

@@ -1,22 +1,12 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='custom actions functionality
 
 This test covers the contract between todo.sh and custom actions.
 '
+. ./actions-test-lib.sh
 . ./test-lib.sh
 
-unset TODO_ACTIONS_DIR
-mkdir .todo.actions.d
-make_action()
-{
-	cat > ".todo.actions.d/$1" <<- EOF
-	#!/bin/bash
-	echo "custom action $1"
-EOF
-chmod +x ".todo.actions.d/$1"
-}
-
 make_action "foo"
 test_todo_session 'executable action' <<EOF
 >>> todo.sh foo

tests/t8010-listaddons.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+
+test_description='listaddons functionality
+
+This test checks listing of custom actions.
+'
+. ./actions-test-lib.sh
+. ./test-lib.sh
+
+test_todo_session 'no custom actions' <<EOF
+>>> todo.sh listaddons
+EOF
+
+make_action "foo"
+test_todo_session 'one custom action' <<EOF
+>>> todo.sh listaddons
+foo
+EOF
+
+make_action "bar"
+make_action "ls"
+make_action "quux"
+test_todo_session 'multiple custom actions' <<EOF
+>>> todo.sh listaddons
+bar
+foo
+ls
+quux
+EOF
+
+chmod -x .todo.actions.d/foo
+# On Cygwin, clearing the executable flag may have no effect, as the Windows ACL
+# may still grant execution rights. In this case, we skip the test.
+if [ -x .todo.actions.d/foo ]; then
+    SKIP_TESTS="${SKIP_TESTS}${SKIP_TESTS+ }t8010.4"
+fi
+test_todo_session 'nonexecutable action' <<EOF
+>>> todo.sh listaddons
+bar
+ls
+quux
+EOF
+
+test_done

tests/t8020-actions-help.sh

@@ -0,0 +1,76 @@
+#!/bin/bash
+
+test_description='custom actions help functionality
+
+This test checks listing the usage help of a custom action.
+'
+. ./actions-test-lib.sh
+. ./test-lib.sh
+
+test_todo_session 'custom action help with no custom action directory' <<'EOF'
+>>> todo.sh help foo
+TODO: No action "foo" exists.
+=== 1
+EOF
+
+make_action "foo"
+make_action "bar"
+make_action "ls"
+make_action "quux"
+
+test_todo_session 'custom action help' <<'EOF'
+>>> todo.sh help foo
+    foo ITEM#[, ITEM#, ...] [TERM...]
+      This custom action does foo.
+\
+
+>>> todo.sh help bar
+    bar ITEM#[, ITEM#, ...] [TERM...]
+      This custom action does bar.
+\
+EOF
+
+test_todo_session 'multiple custom actions help' <<'EOF'
+>>> todo.sh help foo bar
+    foo ITEM#[, ITEM#, ...] [TERM...]
+      This custom action does foo.
+\
+    bar ITEM#[, ITEM#, ...] [TERM...]
+      This custom action does bar.
+\
+EOF
+
+test_todo_session 'nonexisting action help' <<'EOF'
+>>> todo.sh help doesnotexist
+TODO: No action "doesnotexist" exists.
+=== 1
+
+>>> todo.sh help foo doesnotexist bar
+    foo ITEM#[, ITEM#, ...] [TERM...]
+      This custom action does foo.
+\
+TODO: No action "doesnotexist" exists.
+=== 1
+EOF
+
+test_todo_session 'mixed built-in and custom actions help' <<'EOF'
+>>> todo.sh help foo shorthelp bar
+    foo ITEM#[, ITEM#, ...] [TERM...]
+      This custom action does foo.
+\
+    shorthelp
+      List the one-line usage of all built-in and add-on actions.
+\
+    bar ITEM#[, ITEM#, ...] [TERM...]
+      This custom action does bar.
+\
+EOF
+
+test_todo_session 'custom override of built-in action help' <<'EOF'
+>>> todo.sh help ls
+    ls ITEM#[, ITEM#, ...] [TERM...]
+      This custom action does ls.
+\
+EOF
+
+test_done

tests/t9999-testsuite_example.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='basic tests imported from previous framework
 '
@@ -85,13 +85,9 @@ TODO: $HOME/todo.txt archived.
 TODO: 5 of 5 tasks shown
 
 >>> todo.sh report
+TODO: $HOME/todo.txt archived.
+2009-02-13T04:40:00 5 1
 TODO: Report file updated.
-2009-02-13-04:40:00 5 1
-
->>> todo.sh report
-TODO: Report file updated.
-2009-02-13-04:40:00 5 1
-2009-02-13-04:40:00 5 1
 
 >>> todo.sh append g a
 usage: todo.sh append ITEM# "TEXT TO APPEND"

tests/test-lib.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Copyright (c) 2005 Junio C Hamano
 #
@@ -180,7 +180,7 @@ test_failure_ () {
 	test_failure=$(($test_failure + 1))
 	say_color error "FAIL $test_count: $1"
 	shift
-	echo "$@" | sed -e 's/^/	/'
+	echo "$@"
 	test "$immediate" = "" || { trap - EXIT; exit 1; }
 }
 
@@ -199,8 +199,9 @@ test_debug () {
 }
 
 test_run_ () {
-	eval >&3 2>&4 "$1"
+	eval > output 2>&1 "$1"
 	eval_ret="$?"
+	cat >&3 output
 	return 0
 }
 
@@ -260,6 +261,43 @@ test_expect_success () {
 	echo >&3 ""
 }
 
+test_expect_output () {
+	test "$#" = 2 ||
+	error "bug in the test script: not 2 parameters to test-expect-output"
+	test_expect_code_and_output 0 "$@"
+}
+
+test_expect_code_and_output () {
+	test "$#" = 3 ||
+	error "bug in the test script: not 3 parameters to test-expect-code-and-output"
+	if ! test_skip "$@"
+	then
+		if [ "$1" = 0 ]; then
+			say >&3 "expecting success and output: $3"
+		else
+			say >&3 "expecting exit code $1 and output: $3"
+		fi
+		test_run_ "$3"
+		if [ "$?" = 0 -a "$eval_ret" = "$1" ]
+		then
+			cmp_output=$(test_cmp expect output)
+			if [ "$?" = 0 ]
+			then
+				test_ok_ "$2"
+			else
+				test_failure_ "$2" "$3" "
+$cmp_output"
+			fi
+		else
+			cmp_output=$(test_cmp expect output)
+			test_failure_ "$2" "$3" "
+expected exit code $1, actual ${eval_ret}${cmp_output:+
+}${cmp_output}"
+		fi
+	fi
+	echo >&3 ""
+}
+
 test_expect_code () {
 	test "$#" = 3 ||
 	error "bug in the test script: not 3 parameters to test-expect-code"
@@ -271,7 +309,8 @@ test_expect_code () {
 		then
 			test_ok_ "$2"
 		else
-			test_failure_ "$@"
+			test_failure_ "$2" "$3" "
+expected exit code $1, actual ${eval_ret}"
 		fi
 	fi
 	echo >&3 ""
@@ -513,14 +552,16 @@ test_tick () {
 }
 
 # Generate and run a series of tests based on a transcript.
-# Usage: test_todo_session "description" <<EOF
+# Usage: test_todo_session "description" <<'EOF'
 # >>> command
 # output1
 # output2
+#
 # >>> command
 # === exit status
-# output3
+# output3 with empty line (must be escaped here)
-# output4
+# \
+# output5
 # EOF
 test_todo_session () {
     test "$#" = 1 ||
@@ -529,7 +570,7 @@ test_todo_session () {
     cmd=""
     status=0
     > expect
-    while read -r line
+    while IFS= read -r line
     do
 	case $line in
 	">>> "*)
@@ -542,9 +583,9 @@ test_todo_session () {
 	"")
 	    if [ ! -z "$cmd" ]; then
 		if [ $status = 0 ]; then
-		    test_expect_success "$1 $subnum" "$cmd > output && test_cmp expect output"
+		    test_expect_output "$1 $subnum" "$cmd"
 		else
-		    test_expect_success "$1 $subnum" "$cmd > output ; test \$? = $status && test_cmp expect output"
+		    test_expect_code_and_output "$status" "$1 $subnum" "$cmd"
 		fi
 
 		subnum=$(($subnum + 1))
@@ -553,6 +594,9 @@ test_todo_session () {
 		> expect
 	    fi
 	    ;;
+	\\)
+	    echo "" >> expect
+	    ;;
 	*)
 	    echo "$line" >> expect
 	    ;;
@@ -560,9 +604,9 @@ test_todo_session () {
     done
     if [ ! -z "$cmd" ]; then
 	if [ $status = 0 ]; then
-	    test_expect_success "$1 $subnum" "$cmd > output && test_cmp expect output"
+	    test_expect_output "$1 $subnum" "$cmd"
 	else
-	    test_expect_success "$1 $subnum" "$cmd > output ; test \$? = $status && test_cmp expect output"
+	    test_expect_code_and_output "$status" "$1 $subnum" "$cmd"
 	fi
     fi
 }
@@ -579,6 +623,66 @@ EOF
 	exit 0
 }
 
+test_todo_custom_completion () {
+	test "$#" = 4 ||
+	error "bug in the test script: not 4 parameters to test_todo_custom_completion"
+	completeFunc=$1
+	shift
+	if ! test_skip "$@"
+	then
+		description=$1
+		expected=$3
+
+		if [ "${2: -1}" = ' ' ]
+		then
+			offset=0
+			say >&3 "expecting completions after: '$2'"
+		else
+			offset=1
+			say >&3 "expecting context completions for: '$2'"
+		fi
+
+		SAVEIFS=$IFS
+		IFS=' ' set -- $2
+		COMP_WORDS=("$@")
+		COMP_CWORD=$(($# - $offset))
+		IFS=' ' eval "set -- $expected"
+		EXPECT=("$@")
+
+		source "$TEST_DIRECTORY/../todo_completion"
+		$completeFunc
+		ret=$?
+		if [ "$ret" = 0 ]
+		then
+			IFS=$'\n'
+			printf "%s${EXPECT:+\\n}" "${EXPECT[*]}" > expect
+			printf "%s${COMPREPLY:+\\n}" "${COMPREPLY[*]}" > compreply
+			IFS=$SAVEIFS
+
+			if [ ${#COMPREPLY[@]} -eq ${#EXPECT[@]} ]
+			then
+				if [ "${COMPREPLY[*]}" = "${EXPECT[*]}" ]
+				then
+					test_ok_ "$description"
+				else
+					test_failure_ "$description" "$(test_cmp expect compreply)"
+				fi
+			else
+				test_failure_ "$description" "expected ${#EXPECT[@]} completion(s), got ${#COMPREPLY[@]}:
+$(test_cmp expect compreply)"
+			fi
+		else
+			test_failure_ "$description" "expected completions, actual exit code $ret"
+		fi
+	fi
+	echo >&3 ""
+}
+test_todo_completion () {
+	test "$#" = 3 ||
+	error "bug in the test script: not 3 parameters to test_todo_completion"
+	test_todo_custom_completion _todo "$@"
+}
+
 test_init_todo "$test"
 # Use -P to resolve symlinks in our working directory so that the pwd
 # in subprocesses equals our $PWD (for pathname comparisons).

tests/testshell.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 test_description='Providing an interactive shell in the proper environment'
 . ./test-lib.sh

todo.cfg

@@ -2,13 +2,12 @@
 
 # Your todo.txt directory
 #export TODO_DIR="/Users/gina/Documents/todo"
-export TODO_DIR=`dirname "$0"`
+export TODO_DIR=$(dirname "$0")
 
 # Your todo/done/report.txt locations
 export TODO_FILE="$TODO_DIR/todo.txt"
 export DONE_FILE="$TODO_DIR/done.txt"
 export REPORT_FILE="$TODO_DIR/report.txt"
-export TMP_FILE="$TODO_DIR/todo.tmp"
 
 # You can customize your actions directory location
 #export TODO_ACTIONS_DIR="$HOME/.todo.actions.d"

todo.sh

@@ -50,15 +50,17 @@ shorthelp()
 		    append|app ITEM# "TEXT TO APPEND"
 		    archive
 		    command [ACTIONS]
+		    deduplicate
 		    del|rm ITEM# [TERM]
 		    depri|dp ITEM#[, ITEM#, ITEM#, ...]
 		    do ITEM#[, ITEM#, ITEM#, ...]
-		    help
+		    help [ACTION...]
 		    list|ls [TERM...]
 		    listall|lsa [TERM...]
-		    listcon|lsc
+		    listaddons
-		    listfile|lf SRC [TERM...]
+		    listcon|lsc [TERM...]
-		    listpri|lsp [PRIORITY] [TERM...]
+		    listfile|lf [SRC [TERM...]]
+		    listpri|lsp [PRIORITIES] [TERM...]
 		    listproj|lsprj [TERM...]
 		    move|mv ITEM# DEST [SRC]
 		    prepend|prep ITEM# "TEXT TO PREPEND"
@@ -67,6 +69,8 @@ shorthelp()
 		    report
 		    shorthelp
 
+		  Actions can be added and overridden using scripts in the actions
+		  directory.
 	EndHelp
 
     # Only list the one-line usage from the add-on actions. This assumes that
@@ -87,10 +91,10 @@ help()
 
 		  Options:
 		    -@
-		        Hide context names in list output. Use twice to show context
+		        Hide context names in list output.  Use twice to show context
 		        names (default).
 		    -+
-		        Hide project names in list output. Use twice to show project
+		        Hide project names in list output.  Use twice to show project
 		        names (default).
 		    -c
 		        Color mode
@@ -103,7 +107,7 @@ help()
 		    -p
 		        Plain mode turns off colors
 		    -P
-		        Hide priority labels in list output. Use twice to show
+		        Hide priority labels in list output.  Use twice to show
 		        priority labels (default).
 		    -a
 		        Don't auto-archive tasks automatically on completion
@@ -133,7 +137,7 @@ help()
 
 	EndOptionsHelp
 
-    [ $TODOTXT_VERBOSE -gt 1 ] && cat <<-EndVerboseHelp
+    [ $TODOTXT_VERBOSE -gt 1 ] && cat <<-'EndVerboseHelp'
 		  Environment variables:
 		    TODOTXT_AUTO_ARCHIVE            is same as option -a (0)/-A (1)
 		    TODOTXT_CFG_FILE=CONFIG_FILE    is same as option -d CONFIG_FILE
@@ -146,9 +150,16 @@ help()
 		    TODOTXT_DEFAULT_ACTION=""       run this when called with no arguments
 		    TODOTXT_SORT_COMMAND="sort ..." customize list output
 		    TODOTXT_FINAL_FILTER="sed ..."  customize list after color, P@+ hiding
+		    TODOTXT_SOURCEVAR=\$DONE_FILE   use another source for listcon, listproj
 
 
 	EndVerboseHelp
+        actionsHelp
+        addonHelp
+}
+
+actionsHelp()
+{
     cat <<-EndActionsHelp
 		  Built-in Actions:
 		    add "THING I NEED TO DO +project @context"
@@ -162,7 +173,6 @@ help()
 		      Adds FIRST THING I NEED TO DO to your todo.txt on its own line and
 		      Adds SECOND THING I NEED TO DO to you todo.txt on its own line.
 		      Project and context notation optional.
-		      Quotes optional.
 
 		    addto DEST "TEXT TO ADD"
 		      Adds a line of text to any file located in the todo.txt directory.
@@ -180,6 +190,9 @@ help()
 		      Runs the remaining arguments using only todo.sh builtins.
 		      Will not call any .todo.actions.d scripts.
 
+		    deduplicate
+		      Removes duplicate lines from todo.txt.
+
 		    del ITEM# [TERM]
 		    rm ITEM# [TERM]
 		      Deletes the task on line ITEM# in todo.txt.
@@ -193,39 +206,58 @@ help()
 		    do ITEM#[, ITEM#, ITEM#, ...]
 		      Marks task(s) on line ITEM# as done in todo.txt.
 
-		    help
+		    help [ACTION...]
-		      Display this help message.
+		      Display help about usage, options, built-in and add-on actions,
+		      or just the usage help for the passed ACTION(s).
 
 		    list [TERM...]
 		    ls [TERM...]
 		      Displays all tasks that contain TERM(s) sorted by priority with line
-		      numbers.  If no TERM specified, lists entire todo.txt.
+		      numbers.  Each task must match all TERM(s) (logical AND); to display
+		      tasks that contain any TERM (logical OR), use
+		      "TERM1\|TERM2\|..." (with quotes), or TERM1\\\|TERM2 (unquoted).
+		      Hides all tasks that contain TERM(s) preceded by a
+		      minus sign (i.e. -TERM). If no TERM specified, lists entire todo.txt.
 
 		    listall [TERM...]
 		    lsa [TERM...]
 		      Displays all the lines in todo.txt AND done.txt that contain TERM(s)
-		      sorted by priority with line  numbers.  If no TERM specified, lists
+		      sorted by priority with line  numbers.  Hides all tasks that
-		      entire todo.txt AND done.txt concatenated and sorted.
+		      contain TERM(s) preceded by a minus sign (i.e. -TERM).  If no
+		      TERM specified, lists entire todo.txt AND done.txt
+		      concatenated and sorted.
 
-		    listcon
+		    listaddons
-		    lsc
+		      Lists all added and overridden actions in the actions directory.
+
+		    listcon [TERM...]
+		    lsc [TERM...]
 		      Lists all the task contexts that start with the @ sign in todo.txt.
+		      If TERM specified, considers only tasks that contain TERM(s).
 
-		    listfile SRC [TERM...]
+		    listfile [SRC [TERM...]]
-		    lf SRC [TERM...]
+		    lf [SRC [TERM...]]
 		      Displays all the lines in SRC file located in the todo.txt directory,
 		      sorted by priority with line  numbers.  If TERM specified, lists
-		      all lines that contain TERM in SRC file.
+		      all lines that contain TERM(s) in SRC file.  Hides all tasks that
+		      contain TERM(s) preceded by a minus sign (i.e. -TERM).  
+		      Without any arguments, the names of all text files in the todo.txt
+		      directory are listed.
 		
-		    listpri [PRIORITY] [TERM...]
+		    listpri [PRIORITIES] [TERM...]
-		    lsp [PRIORITY] [TERM...]
+		    lsp [PRIORITIES] [TERM...]
-		      Displays all tasks prioritized PRIORITY.
+		      Displays all tasks prioritized PRIORITIES.
-		      If no PRIORITY specified, lists all prioritized tasks.
+		      PRIORITIES can be a single one (A) or a range (A-C).
-		      If TERM specified, lists only prioritized tasks that contain TERM.
+		      If no PRIORITIES specified, lists all prioritized tasks.
+		      If TERM specified, lists only prioritized tasks that contain TERM(s).
+		      Hides all tasks that contain TERM(s) preceded by a minus sign
+		      (i.e. -TERM).  
 
-		    listproj
+		    listproj [TERM...]
-		    lsprj
+		    lsprj [TERM...]
-		      Lists all the projects that start with the + sign in todo.txt.
+		      Lists all the projects (terms that start with a + sign) in
+		      todo.txt.
+		      If TERM specified, considers only tasks that contain TERM(s).
 
 		    move ITEM# DEST [SRC]
 		    mv ITEM# DEST [SRC]
@@ -243,7 +275,7 @@ help()
 		    p ITEM# PRIORITY
 		      Adds PRIORITY to task on line ITEM#.  If the task is already
 		      prioritized, replaces current priority with new PRIORITY.
-		      PRIORITY must be an uppercase letter between A and Z.
+		      PRIORITY must be a letter between A and Z.
 
 		    replace ITEM# "UPDATED TODO"
 		      Replaces task on line ITEM# with UPDATED TODO.
@@ -254,11 +286,7 @@ help()
 		    shorthelp
 		      List the one-line usage of all built-in and add-on actions.
 
-
 	EndActionsHelp
-
-        addonHelp
-    exit 1
 }
 
 addonHelp()
@@ -280,20 +308,38 @@ addonHelp()
     fi
 }
 
+actionUsage()
+{
+    for actionName
+    do
+        action="${TODO_ACTIONS_DIR}/${actionName}"
+        if [ -f "$action" -a -x "$action" ]; then
+            "$action" usage
+        else
+            builtinActionUsage=$(actionsHelp | sed -n -e "/^    ${actionName//\//\\/} /,/^\$/p" -e "/^    ${actionName//\//\\/}$/,/^\$/p")
+            if [ "$builtinActionUsage" ]; then
+                echo "$builtinActionUsage"
+                echo
+            else
+                die "TODO: No action \"${actionName}\" exists."
+            fi
+        fi
+    done
+}
+
 die()
 {
     echo "$*"
     exit 1
 }
 
-cleanup()
-{
-    [ -f "$TMP_FILE" ] && rm "$TMP_FILE"
-    return 0
-}
-
 cleaninput()
 {
+    # Parameters:    When $1 = "for sed", performs additional escaping for use
+    #                in sed substitution with "|" separators.
+    # Precondition:  $input contains text to be cleaned.
+    # Postcondition: Modifies $input.
+
     # Replace CR and LF with space; tasks always comprise a single line.
     input=${input//$'\r'/ }
     input=${input//$'\n'/ }
@@ -308,18 +354,42 @@ cleaninput()
     fi
 }
 
-archive()
+getPrefix()
 {
-    #defragment blank lines
+    # Parameters:    $1: todo file; empty means $TODO_FILE.
-    sed -i.bak -e '/./!d' "$TODO_FILE"
+    # Returns:       Uppercase FILE prefix to be used in place of "TODO:" where
-    [ $TODOTXT_VERBOSE -gt 0 ] && grep "^x " "$TODO_FILE"
+    #                a different todo file can be specified.
-    grep "^x " "$TODO_FILE" >> "$DONE_FILE"
+    local base=$(basename "${1:-$TODO_FILE}")
-    sed -i.bak '/^x /d' "$TODO_FILE"
+    echo "${base%%.[^.]*}" | tr 'a-z' 'A-Z'
-    cp "$TODO_FILE" "$TMP_FILE"
+}
-    sed -n 'G; s/\n/&&/; /^\([ ~-]*\n\).*\n\1/d; s/\n//; h; P' "$TMP_FILE" > "$TODO_FILE"
+
-    if [ $TODOTXT_VERBOSE -gt 0 ]; then
+getTodo()
-	echo "TODO: $TODO_FILE archived."
+{
-    fi
+    # Parameters:    $1: task number
+    #                $2: Optional todo file
+    # Precondition:  $errmsg contains usage message.
+    # Postcondition: $todo contains task text.
+
+    local item=$1
+    [ -z "$item" ] && die "$errmsg"
+    [ "${item//[0-9]/}" ] && die "$errmsg"
+
+    todo=$(sed "$item!d" "${2:-$TODO_FILE}")
+    [ -z "$todo" ] && die "$(getPrefix "$2"): No task $item."
+}
+getNewtodo()
+{
+    # Parameters:    $1: task number
+    #                $2: Optional todo file
+    # Precondition:  None.
+    # Postcondition: $newtodo contains task text.
+
+    local item=$1
+    [ -z "$item" ] && die 'Programming error: $item should exist.'
+    [ "${item//[0-9]/}" ] && die 'Programming error: $item should be numeric.'
+
+    newtodo=$(sed "$item!d" "${2:-$TODO_FILE}")
+    [ -z "$newtodo" ] && die "$(getPrefix "$2"): No updated task $item."
 }
 
 replaceOrPrepend()
@@ -336,12 +406,7 @@ replaceOrPrepend()
       ;;
   esac
   shift; item=$1; shift
-
+  getTodo "$item"
-  [ -z "$item" ] && die "$errmsg"
-  [[ "$item" = +([0-9]) ]] || die "$errmsg"
-
-  todo=$(sed "$item!d" "$TODO_FILE")
-  [ -z "$todo" ] && die "TODO: No task $item."
 
   if [[ -z "$1" && $TODOTXT_FORCE = 0 ]]; then
     echo -n "$querytext"
@@ -349,24 +414,25 @@ replaceOrPrepend()
   else
     input=$*
   fi
-  cleaninput "for sed"
 
   # Retrieve existing priority and prepended date
-  priority=$(sed -e "$item!d" -e $item's/^\((.) \)\{0,1\}\([0-9]\{2,4\}-[0-9]\{2\}-[0-9]\{2\} \)\{0,1\}.*/\1/' "$TODO_FILE")
+  local -r priAndDateExpr='^\((.) \)\{0,1\}\([0-9]\{2,4\}-[0-9]\{2\}-[0-9]\{2\} \)\{0,1\}'
-  prepdate=$(sed -e "$item!d" -e $item's/^\((.) \)\{0,1\}\([0-9]\{2,4\}-[0-9]\{2\}-[0-9]\{2\} \)\{0,1\}.*/\2/' "$TODO_FILE")
+  priority=$(sed -e "$item!d" -e "${item}s/${priAndDateExpr}.*/\\1/" "$TODO_FILE")
+  prepdate=$(sed -e "$item!d" -e "${item}s/${priAndDateExpr}.*/\\2/" "$TODO_FILE")
 
-  if [ "$prepdate" -a "$action" = "replace" ] && [ "$(echo "$input"|sed -e 's/^\([0-9]\{2,4\}-[0-9]\{2\}-[0-9]\{2\}\)\{0,1\}.*/\1/')" ]; then
+  if [ "$prepdate" -a "$action" = "replace" ] && [ "$(echo "$input"|sed -e "s/${priAndDateExpr}.*/\\1\\2/")" ]; then
-    # If the replaced text starts with a date, it will replace the existing
+      # If the replaced text starts with a [priority +] date, it will replace
-    # date, too.
+      # the existing date, too.
     prepdate=
   fi
 
   # Temporarily remove any existing priority and prepended date, perform the
   # change (replace/prepend) and re-insert the existing priority and prepended
   # date again.
+  cleaninput "for sed"
   sed -i.bak -e "$item s/^${priority}${prepdate}//" -e "$item s|^.*|${priority}${prepdate}${input}${backref}|" "$TODO_FILE"
   if [ $TODOTXT_VERBOSE -gt 0 ]; then
-    newtodo=$(sed "$item!d" "$TODO_FILE")
+    getNewtodo "$item"
     case "$action" in
       replace)
         echo "$item $todo"
@@ -630,7 +696,6 @@ ACTION=${1:-$TODOTXT_DEFAULT_ACTION}
 [ -d "$TODO_DIR" ]  || die "Fatal Error: $TODO_DIR is not a directory"
 ( cd "$TODO_DIR" )  || die "Fatal Error: Unable to cd to $TODO_DIR"
 
-[ -w "$TMP_FILE"  ] || echo -n > "$TMP_FILE" || die "Fatal Error: Unable to write to $TMP_FILE"
 [ -f "$TODO_FILE" ] || cp /dev/null "$TODO_FILE"
 [ -f "$DONE_FILE" ] || cp /dev/null "$DONE_FILE"
 [ -f "$REPORT_FILE" ] || cp /dev/null "$REPORT_FILE"
@@ -656,10 +721,8 @@ _addto() {
     echo "$input" >> "$file"
     if [ $TODOTXT_VERBOSE -gt 0 ]; then
         TASKNUM=$(sed -n '$ =' "$file")
-        BASE=$(basename "$file")
-        PREFIX=$(echo ${BASE%%.[^.]*} | tr 'a-z' 'A-Z')
         echo "$TASKNUM $input"
-        echo "${PREFIX}: $TASKNUM added."
+        echo "$(getPrefix "$file"): $TASKNUM added."
     fi
 }
 
@@ -688,7 +751,7 @@ filtercommand()
             ## $search_term
             #
             ## Remove the first character (-) before adding to our filter command
-            filter="${filter:-}${filter:+ | }grep -v -i '$(shellquote "${search_term:1}")'"
+            filter="${filter:-}${filter:+ | }grep -v -i $(shellquote "${search_term:1}")"
         fi
     done
 
@@ -722,13 +785,32 @@ _list() {
     ## Get our search arguments, if any
     shift ## was file name, new $1 is first search term
 
-    ## Build the filter.
+    _format "$src" '' "$@"
-    filter_command=$(filtercommand "${pre_filter_command:-}" "${post_filter_command:-}" "$@")
 
-    ## Figure out how much padding we need to use
+    if [ $TODOTXT_VERBOSE -gt 0 ]; then
-    ## We need one level of padding for each power of 10 $LINES uses
+        echo "--"
-    LINES=$( sed -n '$ =' "$src" )
+        echo "$(getPrefix "$src"): ${NUMTASKS:-0} of ${TOTALTASKS:-0} tasks shown"
-    PADDING=${#LINES}
+    fi
+}
+getPadding()
+{
+    ## We need one level of padding for each power of 10 $LINES uses.
+    LINES=$(sed -n '$ =' "${1:-$TODO_FILE}")
+    printf %s ${#LINES}
+}
+_format()
+{
+    # Parameters:    $1: todo input file; when empty formats stdin
+    #                $2: ITEM# number width; if empty auto-detects from $1 / $TODO_FILE.
+    # Precondition:  None
+    # Postcondition: $NUMTASKS and $TOTALTASKS contain statistics (unless $TODOTXT_VERBOSE=0).
+
+    FILE=$1
+    shift
+
+    ## Figure out how much padding we need to use, unless this was passed to us.
+    PADDING=${1:-$(getPadding "$FILE")}
+    shift
 
     ## Number the file, then run the filter command,
     ## then sort and mangle output some more
@@ -736,10 +818,21 @@ _list() {
         TODOTXT_FINAL_FILTER="cat"
     fi
     items=$(
-        sed = "$src"                                            \
+        if [ "$FILE" ]; then
-        | sed "N; s/^/     /; s/ *\(.\{$PADDING,\}\)\n/\1 /"    \
+            sed = "$FILE"
-        | grep -v "^[ 0-9]\+ *$"
+        else
+            sed =
+        fi                                                      \
+        | sed -e '''
+            N
+            s/^/     /
+            s/ *\([ 0-9]\{'"$PADDING"',\}\)\n/\1 /
+            /^[ 0-9]\{1,\} *$/d
+         '''
     )
+
+    ## Build and apply the filter.
+    filter_command=$(filtercommand "${pre_filter_command:-}" "${post_filter_command:-}" "$@")
     if [ "${filter_command}" ]; then
         filtered_items=$(echo -n "$items" | eval "${filter_command}")
     else
@@ -764,7 +857,7 @@ _list() {
             {
                 if (match($0, /^[0-9]+ x /)) {
                     print highlight("COLOR_DONE") $0 highlight("DEFAULT")
-                } else if (match($0, /^[0-9]+ \([A-Z]\)[[:space:]]/)) {
+                } else if (match($0, /^[0-9]+ \([A-Z]\) /)) {
                     clr = highlight("PRI_" substr($0, RSTART + RLENGTH - 3, 1))
                     print \
                         (clr ? clr : highlight("PRI_X")) \
@@ -774,28 +867,34 @@ _list() {
             }
           '''  \
         | sed '''
-            s/'${HIDE_PROJECTS_SUBSTITUTION:-^}'//g
+            s/'"${HIDE_PROJECTS_SUBSTITUTION:-^}"'//g
-            s/'${HIDE_CONTEXTS_SUBSTITUTION:-^}'//g
+            s/'"${HIDE_CONTEXTS_SUBSTITUTION:-^}"'//g
+            s/'"${HIDE_CUSTOM_SUBSTITUTION:-^}"'//g
           '''                                                   \
         | eval ${TODOTXT_FINAL_FILTER}                          \
     )
     [ "$filtered_items" ] && echo "$filtered_items"
 
     if [ $TODOTXT_VERBOSE -gt 0 ]; then
-        BASE=$(basename "$FILE")
-        PREFIX=$(echo ${BASE%%.[^.]*} | tr 'a-z' 'A-Z')
         NUMTASKS=$( echo -n "$filtered_items" | sed -n '$ =' )
         TOTALTASKS=$( echo -n "$items" | sed -n '$ =' )
-
-        echo "--"
-        echo "${PREFIX}: ${NUMTASKS:-0} of ${TOTALTASKS:-0} tasks shown"
     fi
     if [ $TODOTXT_VERBOSE -gt 1 ]; then
         echo "TODO DEBUG: Filter Command was: ${filter_command:-cat}"
     fi
 }
 
-export -f cleaninput shellquote filtercommand _list die
+listWordsWithSigil()
+{
+    sigil=$1
+    shift
+
+    FILE=$TODO_FILE
+    [ "$TODOTXT_SOURCEVAR" ] && eval "FILE=$TODOTXT_SOURCEVAR"
+    eval "$(filtercommand 'cat "${FILE[@]}"' '' "$@")" | grep -o "[^ ]*${sigil}[^ ]\\+" | grep "^$sigil" | sort -u
+}
+
+export -f cleaninput getPrefix getTodo getNewtodo shellquote filtercommand _list listWordsWithSigil getPadding _format die
 
 # == HANDLE ACTION ==
 action=$( printf "%s\n" "$ACTION" | tr 'A-Z' 'a-z' )
@@ -813,9 +912,7 @@ then
 elif [ -d "$TODO_ACTIONS_DIR" -a -x "$TODO_ACTIONS_DIR/$action" ]
 then
     "$TODO_ACTIONS_DIR/$action" "$@"
-    status=$?
+    exit $?
-    cleanup
-    exit $status
 fi
 
 ## Only run if $action isn't found in .todo.actions.d
@@ -872,11 +969,8 @@ case $action in
 "append" | "app" )
     errmsg="usage: $TODO_SH append ITEM# \"TEXT TO APPEND\""
     shift; item=$1; shift
+    getTodo "$item"
 
-    [ -z "$item" ] && die "$errmsg"
-    [[ "$item" = +([0-9]) ]] || die "$errmsg"
-    todo=$(sed "$item!d" "$TODO_FILE")
-    [ -z "$todo" ] && die "TODO: No task $item."
     if [[ -z "$1" && $TODOTXT_FORCE = 0 ]]; then
         echo -n "Append: "
         read input
@@ -891,7 +985,7 @@ case $action in
 
     if sed -i.bak $item" s|^.*|&${appendspace}${input}|" "$TODO_FILE"; then
         if [ $TODOTXT_VERBOSE -gt 0 ]; then
-            newtodo=$(sed "$item!d" "$TODO_FILE")
+            getNewtodo "$item"
             echo "$item $newtodo"
 	fi
     else
@@ -900,20 +994,25 @@ case $action in
     ;;
 
 "archive" )
-    archive;;
+    # defragment blank lines
+    sed -i.bak -e '/./!d' "$TODO_FILE"
+    [ $TODOTXT_VERBOSE -gt 0 ] && grep "^x " "$TODO_FILE"
+    grep "^x " "$TODO_FILE" >> "$DONE_FILE"
+    sed -i.bak '/^x /d' "$TODO_FILE"
+    if [ $TODOTXT_VERBOSE -gt 0 ]; then
+	echo "TODO: $TODO_FILE archived."
+    fi
+    ;;
 
 "del" | "rm" )
     # replace deleted line with a blank line when TODOTXT_PRESERVE_LINE_NUMBERS is 1
     errmsg="usage: $TODO_SH del ITEM# [TERM]"
     item=$2
-    [ -z "$item" ] && die "$errmsg"
+    getTodo "$item"
-    [[ "$item" = +([0-9]) ]] || die "$errmsg"
-    DELETEME=$(sed "$item!d" "$TODO_FILE")
-    [ -z "$DELETEME" ] && die "TODO: No task $item."
 
     if [ -z "$3" ]; then
         if  [ $TODOTXT_FORCE = 0 ]; then
-            echo "Delete '$DELETEME'?  (y/n)"
+            echo "Delete '$todo'?  (y/n)"
             read ANSWER
         else
             ANSWER="y"
@@ -927,7 +1026,7 @@ case $action in
                 sed -i.bak -e $item"s/^.*//" "$TODO_FILE"
             fi
             if [ $TODOTXT_VERBOSE -gt 0 ]; then
-                echo "$item $DELETEME"
+                echo "$item $todo"
                 echo "TODO: $item deleted."
             fi
         else
@@ -941,13 +1040,13 @@ case $action in
             -e $item"s/ *$3  */ /g" \
             -e $item"s/$3//g" \
             "$TODO_FILE"
-        newtodo=$(sed "$item!d" "$TODO_FILE")
+        getNewtodo "$item"
-        if [ "$DELETEME" = "$newtodo" ]; then
+        if [ "$todo" = "$newtodo" ]; then
-            [ $TODOTXT_VERBOSE -gt 0 ] && echo "$item $DELETEME"
+            [ $TODOTXT_VERBOSE -gt 0 ] && echo "$item $todo"
             die "TODO: '$3' not found; no removal done."
         fi
         if [ $TODOTXT_VERBOSE -gt 0 ]; then
-            echo "$item $DELETEME"
+            echo "$item $todo"
             echo "TODO: Removed '$3' from task."
             echo "$item $newtodo"
         fi
@@ -961,16 +1060,14 @@ case $action in
 
     # Split multiple depri's, if comma separated change to whitespace separated
     # Loop the 'depri' function for each item
-    for item in $(echo $* | tr ',' ' '); do
+    for item in ${*//,/ }; do
-	[[ "$item" = +([0-9]) ]] || die "$errmsg"
+        getTodo "$item"
-	todo=$(sed "$item!d" "$TODO_FILE")
-	[ -z "$todo" ] && die "TODO: No task $item."
 
 	if [[ "$todo" = \(?\)\ * ]]; then
 	    sed -i.bak -e $item"s/^(.) //" "$TODO_FILE"
 	    if [ $TODOTXT_VERBOSE -gt 0 ]; then
-		NEWTODO=$(sed "$item!d" "$TODO_FILE")
+		getNewtodo "$item"
-		echo "$item $NEWTODO"
+		echo "$item $newtodo"
 		echo "TODO: $item deprioritized."
 	    fi
 	else
@@ -987,12 +1084,8 @@ case $action in
 
     # Split multiple do's, if comma separated change to whitespace separated
     # Loop the 'do' function for each item
-    for item in $(echo $* | tr ',' ' '); do
+    for item in ${*//,/ }; do
-        [ -z "$item" ] && die "$errmsg"
+        getTodo "$item"
-        [[ "$item" = +([0-9]) ]] || die "$errmsg"
-
-        todo=$(sed "$item!d" "$TODO_FILE")
-        [ -z "$todo" ] && die "TODO: No task $item."
 
         # Check if this item has already been done
         if [ "${todo:0:2}" != "x " ]; then
@@ -1001,7 +1094,7 @@ case $action in
             sed -i.bak $item"s/^(.) //" "$TODO_FILE"
             sed -i.bak $item"s|^|x $now |" "$TODO_FILE"
             if [ $TODOTXT_VERBOSE -gt 0 ]; then
-                newtodo=$(sed "$item!d" "$TODO_FILE")
+                getNewtodo "$item"
                 echo "$item $newtodo"
                 echo "TODO: $item marked as done."
 	    fi
@@ -1011,18 +1104,26 @@ case $action in
     done
 
     if [ $TODOTXT_AUTO_ARCHIVE = 1 ]; then
-        archive
+        # Recursively invoke the script to allow overriding of the archive
+        # action.
+        "$TODO_FULL_SH" archive
     fi
     ;;
 
 "help" )
-    if [ -t 1 ] ; then # STDOUT is a TTY
+    shift  ## Was help; new $1 is first help topic / action name
-        if which "${PAGER:-less}" >/dev/null 2>&1; then
+    if [ $# -gt 0 ]; then
-            # we have a working PAGER (or less as a default)
+        # Don't use PAGER here; we don't expect much usage output from one / few actions.
-            help | "${PAGER:-less}" && exit 0
+        actionUsage "$@"
+    else
+        if [ -t 1 ] ; then # STDOUT is a TTY
+            if which "${PAGER:-less}" >/dev/null 2>&1; then
+                # we have a working PAGER (or less as a default)
+                help | "${PAGER:-less}" && exit 0
+            fi
         fi
+        help # just in case something failed above, we go ahead and just spew to STDOUT
     fi
-    help # just in case something failed above, we go ahead and just spew to STDOUT
     ;;
 
 "shorthelp" )
@@ -1043,32 +1144,51 @@ case $action in
 "listall" | "lsa" )
     shift  ## Was lsa; new $1 is first search term
 
-    cat "$TODO_FILE" "$DONE_FILE" > "$TMP_FILE"
+    TOTAL=$( sed -n '$ =' "$TODO_FILE" )
-    _list "$TMP_FILE" "$@"
+    PADDING=${#TOTAL}
+
+    post_filter_command="${post_filter_command:-}${post_filter_command:+ | }awk -v TOTAL=$TOTAL -v PADDING=$PADDING '{ \$1 = sprintf(\"%\" PADDING \"d\", (\$1 > TOTAL ? 0 : \$1)); print }' "
+    cat "$TODO_FILE" "$DONE_FILE" | TODOTXT_VERBOSE=0 _format '' "$PADDING" "$@"
+
+    if [ $TODOTXT_VERBOSE -gt 0 ]; then
+        TDONE=$( sed -n '$ =' "$DONE_FILE" )
+        TASKNUM=$(TODOTXT_PLAIN=1 TODOTXT_VERBOSE=0 _format "$TODO_FILE" 1 "$@" | sed -n '$ =')
+        DONENUM=$(TODOTXT_PLAIN=1 TODOTXT_VERBOSE=0 _format "$DONE_FILE" 1 "$@" | sed -n '$ =')
+        echo "--"
+        echo "$(getPrefix "$TODO_FILE"): ${TASKNUM:-0} of ${TOTAL:-0} tasks shown"
+        echo "$(getPrefix "$DONE_FILE"): ${DONENUM:-0} of ${TDONE:-0} tasks shown"
+        echo "total $((TASKNUM + DONENUM)) of $((TOTAL + TDONE)) tasks shown"
+    fi
     ;;
 
 "listfile" | "lf" )
     shift  ## Was listfile, next $1 is file name
-    FILE="$1"
+    if [ $# -eq 0 ]; then
-    shift  ## Was filename; next $1 is first search term
+        [ $TODOTXT_VERBOSE -gt 0 ] && echo "Files in the todo.txt directory:"
+        cd "$TODO_DIR" && ls -1 *.txt
+    else
+        FILE="$1"
+        shift  ## Was filename; next $1 is first search term
 
-    _list "$FILE" "$@"
+        _list "$FILE" "$@"
+    fi
     ;;
 
 "listcon" | "lsc" )
-    grep -o '[^ ]*@[^ ]\+' "$TODO_FILE" | grep '^@' | sort -u
+    shift
+    listWordsWithSigil '@' "$@"
     ;;
 
 "listproj" | "lsprj" )
     shift
-    eval "$(filtercommand 'cat "$TODO_FILE"' '' "$@")" | grep -o '[^ ]*+[^ ]\+' | grep '^+' | sort -u
+    listWordsWithSigil '+' "$@"
     ;;
 
 "listpri" | "lsp" )
     shift ## was "listpri", new $1 is priority to list or first TERM
 
-    pri=$(printf "%s\n" "$1" | tr 'a-z' 'A-Z' | grep '^[A-Z]$') && shift || pri="[A-Z]"
+    pri=$(printf "%s\n" "$1" | tr 'a-z' 'A-Z' | grep -e '^[A-Z]$' -e '^[A-Z]-[A-Z]$') && shift || pri="A-Z"
-    post_filter_command="grep '^ *[0-9]\+ (${pri}) '"
+    post_filter_command="${post_filter_command:-}${post_filter_command:+ | }grep '^ *[0-9]\+ ([${pri}]) '"
     _list "$TODO_FILE" "$@"
     ;;
 
@@ -1079,19 +1199,16 @@ case $action in
     dest="$TODO_DIR/$3"
     src="$TODO_DIR/$4"
 
-    [ -z "$item" ] && die "$errmsg"
     [ -z "$4" ] && src="$TODO_FILE"
     [ -z "$dest" ] && die "$errmsg"
 
-    [[ "$item" = +([0-9]) ]] || die "$errmsg"
-
     [ -f "$src" ] || die "TODO: Source file $src does not exist."
     [ -f "$dest" ] || die "TODO: Destination file $dest does not exist."
 
-    MOVEME=$(sed "$item!d" "$src")
+    getTodo "$item" "$src"
-    [ -z "$MOVEME" ] && die "$item: No such item in $src."
+    [ -z "$todo" ] && die "$item: No such item in $src."
     if  [ $TODOTXT_FORCE = 0 ]; then
-        echo "Move '$MOVEME' from $src to $dest? (y/n)"
+        echo "Move '$todo' from $src to $dest? (y/n)"
         read ANSWER
     else
         ANSWER="y"
@@ -1104,10 +1221,10 @@ case $action in
             # leave blank line behind (preserves line numbers)
             sed -i.bak -e $item"s/^.*//" "$src"
         fi
-        echo "$MOVEME" >> "$dest"
+        echo "$todo" >> "$dest"
 
         if [ $TODOTXT_VERBOSE -gt 0 ]; then
-            echo "$item $MOVEME"
+            echo "$item $todo"
             echo "TODO: $item moved from '$src' to '$dest'."
         fi
     else
@@ -1128,16 +1245,20 @@ case $action in
 note: PRIORITY must be anywhere from A to Z."
 
     [ "$#" -ne 3 ] && die "$errmsg"
-    [[ "$item" = +([0-9]) ]] || die "$errmsg"
     [[ "$newpri" = @([A-Z]) ]] || die "$errmsg"
+    getTodo "$item"
+
+    oldpri=
+    if [[ "$todo" = \(?\)\ * ]]; then
+        oldpri=${todo:1:1}
+    fi
 
-    oldpri=$(sed -ne $item's/^(\(.\)) .*/\1/p' "$TODO_FILE")
     if [ "$oldpri" != "$newpri" ]; then
         sed -i.bak -e $item"s/^(.) //" -e $item"s/^/($newpri) /" "$TODO_FILE"
     fi
     if [ $TODOTXT_VERBOSE -gt 0 ]; then
-        NEWTODO=$(sed "$item!d" "$TODO_FILE")
+        getNewtodo "$item"
-        echo "$item $NEWTODO"
+        echo "$item $newtodo"
         if [ "$oldpri" != "$newpri" ]; then
             if [ "$oldpri" ]; then
                 echo "TODO: $item re-prioritized from ($oldpri) to ($newpri)."
@@ -1157,26 +1278,83 @@ note: PRIORITY must be anywhere from A to Z."
     ;;
 
 "report" )
-    #archive first
+    # archive first
-    sed '/^x /!d' "$TODO_FILE" >> "$DONE_FILE"
+    # Recursively invoke the script to allow overriding of the archive
-    sed -i.bak '/^x /d' "$TODO_FILE"
+    # action.
+    "$TODO_FULL_SH" archive
 
-    NUMLINES=$( sed -n '$ =' "$TODO_FILE" )
-    if [ ${NUMLINES:-0} = "0" ]; then
-         echo "datetime todos dones" >> "$REPORT_FILE"
-    fi
-    #now report
     TOTAL=$( sed -n '$ =' "$TODO_FILE" )
     TDONE=$( sed -n '$ =' "$DONE_FILE" )
-    TECHO=$(echo $(date +%Y-%m-%d-%T); echo ' '; echo ${TOTAL:-0}; echo ' ';
+    NEWDATA="${TOTAL:-0} ${TDONE:-0}"
-    echo ${TDONE:-0})
+    LASTREPORT=$(sed -ne '$p' "$REPORT_FILE")
-    echo $TECHO >> "$REPORT_FILE"
+    LASTDATA=${LASTREPORT#* }   # Strip timestamp.
-    [ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: Report file updated."
+    if [ "$LASTDATA" = "$NEWDATA" ]; then
-    cat "$REPORT_FILE"
+        echo "$LASTREPORT"
+        [ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: Report file is up-to-date."
+    else
+        NEWREPORT="$(date +%Y-%m-%dT%T) ${NEWDATA}"
+        echo "${NEWREPORT}" >> "$REPORT_FILE"
+        echo "${NEWREPORT}"
+        [ $TODOTXT_VERBOSE -gt 0 ] && echo "TODO: Report file updated."
+    fi
+    ;;
+
+"deduplicate" )
+    if [ $TODOTXT_PRESERVE_LINE_NUMBERS = 0 ]; then
+        deduplicateSedCommand='d'
+    else
+        deduplicateSedCommand='s/^.*//; p'
+    fi
+
+    # To determine the difference when deduplicated lines are preserved, only
+    # non-empty lines must be counted.
+    originalTaskNum=$( sed -e '/./!d' "$TODO_FILE" | sed -n '$ =' )
+
+    # Look for duplicate lines and discard the second occurrence.
+    # We start with an empty hold space on the first line.  For each line:
+    #   G - appends newline + hold space to the pattern space
+    #   s/\n/&&/; - double up the first new line so we catch adjacent dups
+    #   /^\([^\n]*\n\).*\n\1/b dedup
+    #       If the first line of the hold space shows up again later as an
+    #       entire line, it's a duplicate. Jump to the "dedup" label, where
+    #       either of the following is executed, depending on whether empty
+    #       lines should be preserved:
+    #       d           - Delete the current pattern space, quit this line and
+    #                     move on to the next, or:
+    #       s/^.*//; p  - Clear the task text, print this line and move on to
+    #                     the next.
+    #   s/\n//;   - else (no duplicate), drop the doubled newline
+    #   h;        - replace the hold space with the expanded pattern space
+    #   P;        - print up to the first newline (that is, the input line)
+    #   b         - end processing of the current line
+    sed -i.bak -n \
+        -e 'G; s/\n/&&/; /^\([^\n]*\n\).*\n\1/b dedup' \
+        -e 's/\n//; h; P; b' \
+        -e ':dedup' \
+        -e "$deduplicateSedCommand" \
+        "$TODO_FILE"
+
+    newTaskNum=$( sed -e '/./!d' "$TODO_FILE" | sed -n '$ =' )
+    deduplicateNum=$(( originalTaskNum - newTaskNum ))
+    if [ $deduplicateNum -eq 0 ]; then
+        echo "TODO: No duplicate tasks found"
+    else
+        echo "TODO: $deduplicateNum duplicate task(s) removed"
+    fi
+    ;;
+
+"listaddons" )
+    if [ -d "$TODO_ACTIONS_DIR" ]; then
+        cd "$TODO_ACTIONS_DIR" || exit $?
+        for action in *
+        do
+            if [ -f "$action" -a -x "$action" ]; then
+                echo "$action"
+            fi
+        done
+    fi
     ;;
 
 * )
     usage;;
 esac
-
-cleanup

todo_completion

@@ -11,40 +11,65 @@ _todo()
     local -r OPTS="-@ -@@ -+ -++ -d -f -h -p -P -PP -a -n -t -v -vv -V -x"
     local -r COMMANDS="\
         add a addto addm append app archive command del  \
-        rm depri dp do help list ls listall lsa listcon  \
+        rm depri dp do help list ls listaddons listall lsa listcon  \
         lsc listfile lf listpri lsp listproj lsprj move \
         mv prepend prep pri p replace report shorthelp"
+    local -r MOVE_COMMAND_PATTERN='^(move|mv)$'
 
-    # Add custom commands from add-ons, if installed.
+    local _todo_sh=${_todo_sh:-todo.sh}
-    # TODO: Filter for executable flag of files found in $TODO_ACTIONS_DIR.
-    local allCommands="$COMMANDS $('ls' "${TODO_ACTIONS_DIR:-$HOME/.todo.actions.d}/" 2>/dev/null)"
-
     local completions
     if [ $COMP_CWORD -eq 1 ]; then
-        completions="$allCommands $OPTS"
+        completions="$COMMANDS $(eval TODOTXT_VERBOSE=0 $_todo_sh command listaddons) $OPTS"
+    elif [[ $COMP_CWORD -gt 2 && ( \
+        "${COMP_WORDS[COMP_CWORD-2]}" =~ $MOVE_COMMAND_PATTERN || \
+        "${COMP_WORDS[COMP_CWORD-3]}" =~ $MOVE_COMMAND_PATTERN ) ]]; then
+        # "move ITEM# DEST [SRC]" has file arguments on positions 2 and 3.
+        completions=$(eval TODOTXT_VERBOSE=0 $_todo_sh command listfile)
     else
         case "$prev" in
             command)
                 completions=$COMMANDS;;
-            -*) completions="$allCommands $OPTS";;
+            help)
+                completions="$COMMANDS $(eval TODOTXT_VERBOSE=0 $_todo_sh command listaddons)";;
+            addto|listfile|lf)
+                completions=$(eval TODOTXT_VERBOSE=0 $_todo_sh command listfile);;
+            -*) completions="$COMMANDS $(eval TODOTXT_VERBOSE=0 $_todo_sh command listaddons) $OPTS";;
             *)  case "$cur" in
-                    +*) completions=$(TODOTXT_VERBOSE=0 todo.sh command listproj);;
+                    +*) completions=$(eval TODOTXT_VERBOSE=0 $_todo_sh command listproj)
-                    @*) completions=$(TODOTXT_VERBOSE=0 todo.sh command listcon);;
+                        COMPREPLY=( $( compgen -W "$completions" -- $cur ))
+                        [ ${#COMPREPLY[@]} -gt 0 ] && return 0
+                        # Fall back to projects extracted from done tasks.
+                        completions=$(eval 'TODOTXT_VERBOSE=0 TODOTXT_SOURCEVAR=\$DONE_FILE' $_todo_sh command listproj)
+                        ;;
+                    @*) completions=$(eval TODOTXT_VERBOSE=0 $_todo_sh command listcon)
+                        COMPREPLY=( $( compgen -W "$completions" -- $cur ))
+                        [ ${#COMPREPLY[@]} -gt 0 ] && return 0
+                        # Fall back to contexts extracted from done tasks.
+                        completions=$(eval 'TODOTXT_VERBOSE=0 TODOTXT_SOURCEVAR=\$DONE_FILE' $_todo_sh command listcon)
+                        ;;
                     *)  if [[ "$cur" =~ ^[0-9]+$ ]]; then
-                            local item=$(TODOTXT_VERBOSE=0 todo.sh -@ -+ -p -x command ls "^ *${cur} " | head -n 1)
-
                             # Remove the (padded) task number; we prepend the
-                            # user-provided $cur.
+                            # user-provided $cur instead.
-                            item=${item#* }
+                            # Remove the timestamp prepended by the -t option,
-
+                            # and the done date (for done tasks); there's no
-                            # Remove the timestamp prepended by the -t option;
+                            # todo.txt option for that yet.
-                            # there's no todo.txt option for that yet.
+                            # But keep priority and "x"; they're short and may
-                            item=${item#[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9] }
+                            # provide useful context.
-
+                            # Remove any trailing whitespace; the Bash
+                            # completion inserts a trailing space itself.
+                            # Finally, limit the output to a single line just as
+                            # a safety check of the ls action output.
+                            local todo=$( \
+                                eval TODOTXT_VERBOSE=0 $_todo_sh '-@ -+ -p -x command ls "^ *${cur} "' | \
+                                sed -e 's/^ *[0-9]\{1,\} //' -e 's/^\((.) \)\{0,1\}[0-9]\{2,4\}-[0-9]\{2\}-[0-9]\{2\} /\1/' \
+                                    -e 's/^\([xX] \)\([0-9]\{2,4\}-[0-9]\{2\}-[0-9]\{2\} \)\{1,2\}/\1/' \
+                                    -e 's/[[:space:]]*$//' \
+                                    -e '1q' \
+                            )
                             # Append task text as a shell comment. This
                             # completion can be a safety check before a
                             # destructive todo.txt operation.
-                            [ "$item" ] && COMPREPLY[0]="$cur # $item"
+                            [ "$todo" ] && COMPREPLY[0]="$cur # $todo"
                             return 0
                         else
                             return 0
@@ -59,6 +84,30 @@ _todo()
     return 0
 }
 complete -F _todo todo.sh
+
 # If you define an alias (e.g. "t") to todo.sh, you need to explicitly enable
 # completion for it, too:
 #complete -F _todo t
+# It is recommended to put this line next to your alias definition in your
+# ~/.bashrc (or wherever else you're defining your alias). If you simply
+# uncomment it here, you will need to redo this on every todo.txt update!
+
+# If you have renamed the todo.sh executable, or if it is not accessible through
+# PATH, you need to add and use a wrapper completion function, like this:
+#_todoElsewhere()
+#{
+#    local _todo_sh='/path/to/todo2.sh'
+#    _todo "$@"
+#}
+#complete -F _todoElsewhere /path/to/todo2.sh
+
+# If you use aliases to use different configuration(s), you need to add and use
+# a wrapper completion function for each configuration if you want to complete
+# fron the actual configured task locations:
+#alias todo2='todo.sh -d "$HOME/todo2.cfg"'
+#_todo2()
+#{
+#    local _todo_sh='todo.sh -d "$HOME/todo2.cfg"'
+#    _todo "$@"
+#}
+#complete -F _todo2 todo2