git_status_shortcuts: don't clobber $IFS

lib/design.sh

@@ -34,7 +34,7 @@ design() {
   local project=`basename $(pwd)`
   local all_project_dirs="$design_base_dirs $design_av_dirs"
   # Ensure design dir contains all subdirectories
-  IFS=$' \t\n'
+  local IFS=$' \t\n'
   # Create root design dirs
   for dir in $design_ext_dirs; do mkdir -p "$root_design_dir/$dir"; done
   # Create project design dirs
@@ -102,6 +102,5 @@ design() {
     printf "Invalid command.\n\n"
     design
   fi
-  unset IFS
 }
 

lib/git/branch_shortcuts.sh

@@ -32,14 +32,12 @@ EOF
 )"
 
   # Set numbered file shortcut in variable
-  local e=1
-  IFS=$'\n'
+  local e=1 IFS=$'\n'
   for branch in $($_git_cmd branch "$@" | sed "s/^[* ]\{2\}//"); do
     export $git_env_char$e="$branch"
     if [ "${scmbDebug:-}" = "true" ]; then echo "Set \$$git_env_char$e  => $file"; fi
     let e++
   done
-  unset IFS
 }
 
 __git_alias "$git_branch_alias"              "_scmb_git_branch_shortcuts" ""

lib/git/fallback/status_shortcuts_shell.sh

@@ -16,7 +16,7 @@
 # --------------------------------------------------------------------
 git_status_shortcuts() {
   zsh_compat # Ensure shwordsplit is on for zsh
-  IFS=$'\n'
+  local IFS=$'\n'
   local git_status="$(git status --porcelain 2> /dev/null)"
   local i
 
@@ -95,7 +95,7 @@ git_status_shortcuts() {
       fi
     done
 
-    IFS=" "
+    local IFS=" "
     grp_num=1
     for heading in 'Changes to be committed' 'Unmerged paths' 'Changes not staged for commit' 'Untracked files'; do
       # If no group specified as param, or specified group is current group
@@ -114,7 +114,6 @@ git_status_shortcuts() {
     # so just use plain 'git status'
     git status
   fi
-  unset IFS
   zsh_reset # Reset zsh environment to default
 }
 # Template function for 'git_status_shortcuts'.

lib/git/repo_index.sh

@@ -51,7 +51,7 @@
 
 
 function git_index() {
-  IFS=$'\n'
+  local IFS=$'\n'
   if [ -z "$1" ]; then
     # Just change to $GIT_REPO_DIR if no params given.
     "cd" $GIT_REPO_DIR
@@ -103,7 +103,7 @@ function git_index() {
       # --------------------
       # Go to our base path
       if [ -n "$base_path" ]; then
-        IFS=$' \t\n'
+        local IFS=$' \t\n'
         # evaluate ~ if necessary
         if [[ "$base_path" == "~"* ]]; then
           base_path=$(eval echo ${base_path%%/*})/${base_path#*/}
@@ -116,7 +116,6 @@ function git_index() {
       fi
     fi
   fi
-  unset IFS
 }
 
 _git_index_dirs_without_home() {
@@ -126,12 +125,11 @@ _git_index_dirs_without_home() {
 # Recursively searches for git repos in $GIT_REPO_DIR
 function _find_git_repos() {
   # Find all unarchived projects
-  IFS=$'\n'
+  local IFS=$'\n'
   for repo in $(find -L "$GIT_REPO_DIR" -maxdepth 5 -name ".git" -type d \! -wholename '*/archive/*'); do
     echo ${repo%/.git}          # Return project folder, with trailing ':'
     _find_git_submodules $repo  # Detect any submodules
   done
-  unset IFS
 }
 
 # List all submodules for a git repo, if any.
@@ -146,11 +144,10 @@ function _find_git_submodules() {
 function _rebuild_git_index() {
   if [ "$1" != "--silent" ]; then echo -e "== Scanning $GIT_REPO_DIR for git repos & submodules..."; fi
   # Get repos from src dir and custom dirs, then sort by basename
-  IFS=$'\n'
+  local IFS=$'\n'
   for repo in $(echo -e "$(_find_git_repos)\n$(echo $GIT_REPOS | sed "s/:/\\\\n/g")"); do
     echo $(basename $repo | sed "s/ /_/g"):$repo
   done | sort -t ":" -k1,1 | cut -d ":" -f2- >| "$GIT_REPO_DIR/.git_index"
-  unset IFS
 
   if [ "$1" != "--silent" ]; then
     echo -e "===== Indexed $_bld_col$(_git_index_count)$_txt_col repos in $GIT_REPO_DIR/.git_index"
@@ -207,7 +204,7 @@ _git_index_update_all_branches() {
 
   local remotes merges branches
   # Get branch configuration from .git/config
-  IFS=$'\n'
+  local IFS=$'\n'
   for branch in $($GIT_BINARY branch 2> /dev/null | sed -e 's/.\{2\}\(.*\)/\1/'); do
     # Skip '(no branch)'
     if [[ "$branch" = "(no branch)" ]]; then continue; fi
@@ -225,7 +222,6 @@ _git_index_update_all_branches() {
       echo "=== Skipping $branch: remote and merge refs are not configured."
     fi
   done
-  unset IFS
 
   # Update all remotes if there are any branches to update
   if [ -n "${branches[*]}" ]; then git fetch --all 2> /dev/null; fi
@@ -268,7 +264,7 @@ function _git_index_batch_cmd() {
   cwd="$PWD"
   if [ -n "$1" ]; then
     echo -e "== Running command for $_bld_col$(_git_index_count)$_txt_col repos...\n"
-    unset IFS
+    local IFS=$'\n'
     local base_path
     for base_path in $(sed -e "s/--.*//" "$GIT_REPO_DIR/.git_index" | \grep . | sort); do
       builtin cd "$base_path"
@@ -285,8 +281,7 @@ if [ $shell = 'bash' ]; then
 	# Bash tab completion function for git_index()
 	function _git_index_tab_completion() {
 		_check_git_index
-		local curw
-		IFS=$'\n'
+		local curw IFS=$'\n'
 		COMPREPLY=()
 		curw=${COMP_WORDS[COMP_CWORD]}
 
@@ -313,10 +308,9 @@ if [ $shell = 'bash' ]; then
 		else
 			COMPREPLY=($(compgen -W '$(sed -e "s:.*/::" -e "s:$:/:" "$GIT_REPO_DIR/.git_index" | sort)' -- $curw))
 		fi
-		unset IFS
 		return 0
 	}
-else
+else  # Zsh tab completion function for git_index()
 	function _git_index_tab_completion() {
 		typeset -A opt_args
 		local state state_descr context line

lib/git/shell_shortcuts.sh

@@ -125,11 +125,10 @@ if [ "$shell_ls_aliases_enabled" = "true" ] && which ruby > /dev/null 2>&1; then
     fi
 
     # Parse path from args
-    IFS=$'\n'
+    local IFS=$'\n'
     for arg in "$@"; do
       if [ -d "$arg" ]; then local rel_path="${arg%/}"; fi
     done
-    unset IFS
 
     # Replace user/group with user symbol, if defined at ~/.user_sym
     # Before : -rw-rw-r-- 1 ndbroadbent ndbroadbent 1.1K Sep 19 21:39 scm_breeze.sh
@@ -175,14 +174,13 @@ EOF
       ll_files="$(\ls "$@")"
     fi
 
-    IFS=$'\n'
+    local IFS=$'\n'
     for file in $ll_files; do
       if [ -n "$rel_path" ]; then file="$rel_path/$file"; fi
       export $git_env_char$e="$(eval $_abs_path_command \"${file//\"/\\\"}\")"
       if [ "${scmbDebug:-}" = "true" ]; then echo "Set \$$git_env_char$e  => $file"; fi
       let e++
     done
-    unset IFS
 
     # Turn off shwordsplit unless it was on previously
     if [[ $shell == "zsh" ]] && [ -z "$SHWORDSPLIT_ON" ]; then unsetopt shwordsplit; fi

lib/git/status_shortcuts.sh

@@ -36,14 +36,13 @@ git_status_shortcuts() {
   files="$(echo "$cmd_output" | \grep '@@filelist@@::' | sed 's%@@filelist@@::%%g')"
   if [ "${scmbDebug:-}" = "true" ]; then echo "filelist => $files"; fi
   # Export numbered env variables for each file
-  IFS="|"
+  local IFS="|"
   local e=1
   for file in $files; do
     export $git_env_char$e="$file"
     if [ "${scmbDebug:-}" = "true" ]; then echo "Set \$$git_env_char$e  => $file"; fi
     let e++
   done
-  unset IFS
 
   if [ "${scmbDebug:-}" = "true" ]; then echo "------------------------"; fi
   # Print status