Re: [RESEND PATCH 2/3] git-completion.bash: fix `git <args>... stash branch` bug
flat view
From: Junio C Hamano <hidden>
Date: 2021-03-18 20:31:46
Denton Liu [off-list ref] writes:
When completions are offered for `git stash branch<TAB>`, the user is supposed to receive refs. This works in the case where the main git command is called without arguments but if options are provided, such as `git -C dir stash branch<TAB>`, then the `$cword -eq 3` provides incorrect results. Count the words relative to the first instance of "stash" so that we ignore arguments to the main git command. Unfortunately, this still does not work 100% correctly. For example, in the case of something like `git -C stash stash branch<TAB>`, this will incorrectly identify the first "stash" as the command. This seems to be an edge-case that we can ignore, though, as other functions, such as _git_worktree(), suffer from the same problem.
I am not familiar with how the completion support works, but doing this inside _git_stash() and still not being able to tell which "stash" on the command line is supposed to be the git subcommand smells quite fishy to me. How did the caller decide to invoke _git_stash helper function in the first place? When it is given "git -C push --paginate stash branch<TAB>", it must have parsed the command line, past the options given to the "git" potty, to find "stash" on the command line that it is _git_stash and not _git_push that needs to be called, no? If it were possible to propagate that information without losing it, then we do not have to recompute where the subcommand name is at all, do we?
quoted hunk
Signed-off-by: Denton Liu <redacted> --- contrib/completion/git-completion.bash | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash index fe79f6b71c..da46f46e3c 100644 --- a/contrib/completion/git-completion.bash +++ b/contrib/completion/git-completion.bash@@ -3016,6 +3016,9 @@ _git_stash () local save_opts='--all --keep-index --no-keep-index --quiet --patch --include-untracked' local subcommands='push list show apply clear drop pop create branch' local subcommand="$(__git_find_on_cmdline "$subcommands save")" + local stash_idx="$(__git_find_on_cmdline --show-idx stash)" + stash_idx="${stash_idx% *}" + if [ -z "$subcommand" -a -n "$(__git_find_on_cmdline "-p")" ]; then subcommand="push" fi@@ -3060,7 +3063,7 @@ _git_stash () branch,--*) ;; branch,*) - if [ $cword -eq 3 ]; then + if [ $((cword - stash_idx)) -eq 2 ]; then __git_complete_refs else __gitcomp_nl "$(__git stash list \