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Override Overrides Using "command"

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New action, "command", forces todo.sh to use builtins and ignore any
.todo.actions.d scripts.  For example, if there is an executable
.todo.actions.d/ls:

    ## Run .todo.actions.d/ls
    todo.sh ls

    ## Run builtin todo.sh ls
    todo.sh command ls

This mimicks bash's behaviour:

    ## Use the default echo
    harding@ziggy:~$ echo 'foo\nbar'
    foo\nbar

    ## Alias the echo command to "echo -e"
    harding@ziggy:~$ alias echo='echo -e'
    harding@ziggy:~$ echo 'foo\nbar'
    foo
    bar

    ## Force bash to call the default echo command
    harding@ziggy:~$ command echo 'foo\nbar'
    foo\nbar
This commit is contained in:
David A. Harding
2009-03-09 14:10:21 -04:00
parent db66767170
commit 88caf44e9e
1 changed files with 15 additions and 5 deletions
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20
todo.sh
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@@ -49,6 +49,10 @@ help()
archive archive
Moves done items from todo.txt to done.txt and removes blank lines. Moves done items from todo.txt to done.txt and removes blank lines.
command [ACTIONS]
Runs the remaining arguments using only todo.sh builtins.
Will not call any .todo.actions.d scripts.
del NUMBER [TERM] del NUMBER [TERM]
rm NUMBER [TERM] rm NUMBER [TERM]
Deletes the item on line NUMBER in todo.txt. Deletes the item on line NUMBER in todo.txt.
@@ -158,7 +162,6 @@ help()
TODOTXT_PLAIN=1 is same as option -p TODOTXT_PLAIN=1 is same as option -p
TODOTXT_DATE_ON_ADD=1 is same as option -t TODOTXT_DATE_ON_ADD=1 is same as option -t
TODOTXT_VERBOSE=1 is same as option -v TODOTXT_VERBOSE=1 is same as option -v
TODOTXT_UNDEF_CUSTOM_ACTIONS=1 disables .todo.actions.d
EndHelp EndHelp
if [ -d "$HOME/.todo.actions.d" ] if [ -d "$HOME/.todo.actions.d" ]
@@ -296,7 +299,6 @@ TODOTXT_FORCE=${TODOTXT_FORCE:-0}
TODOTXT_PRESERVE_LINE_NUMBERS=${TODOTXT_PRESERVE_LINE_NUMBERS:-1} TODOTXT_PRESERVE_LINE_NUMBERS=${TODOTXT_PRESERVE_LINE_NUMBERS:-1}
TODOTXT_AUTO_ARCHIVE=${TODOTXT_AUTO_ARCHIVE:-1} TODOTXT_AUTO_ARCHIVE=${TODOTXT_AUTO_ARCHIVE:-1}
TODOTXT_DATE_ON_ADD=${TODOTXT_DATE_ON_ADD:-0} TODOTXT_DATE_ON_ADD=${TODOTXT_DATE_ON_ADD:-0}
TODOTXT_UNDEF_CUSTOM_ACTIONS=${TODOTXT_UNDEF_CUSTOM_ACTIONS:-0}
[ -e "$TODOTXT_CFG_FILE" ] || { [ -e "$TODOTXT_CFG_FILE" ] || {
CFG_FILE_ALT="$HOME/.todo.cfg" CFG_FILE_ALT="$HOME/.todo.cfg"
@@ -307,7 +309,7 @@ TODOTXT_UNDEF_CUSTOM_ACTIONS=${TODOTXT_UNDEF_CUSTOM_ACTIONS:-0}
fi fi
} }
export TODOTXT_VERBOSE TODOTXT_PLAIN TODOTXT_CFG_FILE TODOTXT_FORCE TODOTXT_PRESERVE_LINE_NUMBERS TODOTXT_AUTO_ARCHIVE TODOTXT_DATE_ON_ADD TODOTXT_UNDEF_CUSTOM_ACTIONS export TODOTXT_VERBOSE TODOTXT_PLAIN TODOTXT_CFG_FILE TODOTXT_FORCE TODOTXT_PRESERVE_LINE_NUMBERS TODOTXT_AUTO_ARCHIVE TODOTXT_DATE_ON_ADD
TODO_SH="$0" TODO_SH="$0"
export TODO_SH export TODO_SH
@@ -340,14 +342,22 @@ shopt -s extglob
# == HANDLE ACTION == # == HANDLE ACTION ==
action=$( printf "%s\n" "$1" | tr 'A-Z' 'a-z' ) action=$( printf "%s\n" "$1" | tr 'A-Z' 'a-z' )
## Run and quit if there's a actions script ## If the first argument is "command", run the rest of the arguments
if [ $TODOTXT_UNDEF_CUSTOM_ACTIONS = 0 -a -d "$HOME/.todo.actions.d" -a -x "$HOME/.todo.actions.d/$action" ] ## using todo.sh builtins.
## Else, run a actions script with the name of the command if it exists
## or fallback to using a builtin
if [ "$action" == command ]
then
shift
action=$( printf "%s\n" "$1" | tr 'A-Z' 'a-z' )
elif [ -d "$HOME/.todo.actions.d" -a -x "$HOME/.todo.actions.d/$action" ]
then then
"$HOME/.todo.actions.d/$action" "$@" "$HOME/.todo.actions.d/$action" "$@"
cleanup cleanup
fi fi
## Only run if $action isn't found in .todo.actions.d ## Only run if $action isn't found in .todo.actions.d
action=$( printf "%s\n" "$1" | tr 'A-Z' 'a-z' )
case $action in case $action in
"add" | "a") "add" | "a")
if [[ -z "$2" && $TODOTXT_FORCE = 0 ]]; then if [[ -z "$2" && $TODOTXT_FORCE = 0 ]]; then