completion: handle '!f() { ... }; f' and "!sh -c '...' -" aliases

[thirdparty/git.git] / contrib / completion / git-completion.bash

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 87de809d23146c2cee818555028cf8a24dc6c908..575f8f7a3fc08eeba1dde0b762ee105de05b031d 100644 (file)
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -21,6 +21,12 @@
 #        source ~/.git-completion.sh
 #    3) Consider changing your PS1 to also show the current branch,
 #       see git-prompt.sh for details.
+#
+# If you use complex aliases of form '!f() { ... }; f', you can use the null
+# command ':' as the first command in the function body to declare the desired
+# completion style.  For example '!f() { : git commit ; ... }; f' will
+# tell the completion to use commit completion.  This also works with aliases
+# of form "!sh -c '...'".  For example, "!sh -c ': git commit ; ... '".
 
 case "$COMP_WORDBREAKS" in
 *:*) : great ;;
@@ -781,6 +787,10 @@ __git_aliased_command ()
                -*)     : option ;;
                *=*)    : setting env ;;
                git)    : git itself ;;
+               \(\))   : skip parens of shell function definition ;;
+               {)      : skip start of shell helper function ;;
+               :)      : skip null command ;;
+               \'*)    : skip opening quote after sh -c ;;
                *)
                        echo "$word"
                        return
@@ -2564,6 +2574,7 @@ __git_main ()
 
        local expansion=$(__git_aliased_command "$command")
        if [ -n "$expansion" ]; then
+               words[1]=$expansion
                completion_func="_git_${expansion//-/_}"
                declare -f $completion_func >/dev/null && $completion_func
        fi