| Message ID | 20181021083731.8009-1-pclouds@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | completion: fix __gitcomp_builtin no longer consider extra options | expand |
Nguyễn Thái Ngọc Duy <pclouds@gmail.com> writes: > __gitcomp_builtin() has the main completion list provided by > > git xxx --git-completion-helper > > but the caller can also add extra options that is not provided by > --git-completion-helper. The only call site that does this is "git > difftool" completion. > > This support is broken by b221b5ab9b (completion: collapse extra > --no-.. options - 2018-06-06), which adds a special value "--" to mark > that the rest of the options can be hidden by default. The commit > forgets the fact that extra options are appended after > "$(git xxx --git-completion-helper)", i.e. after this "--", and will > be incorrectly hidden as well. > > Prepend the extra options before "$(git xxx --git-completion-helper)" > to avoid this. Thanks for a clear analysis. How did you find it? Got annoyed that completion of difftool got broken, or discovered while trying to apply the same trick as difftool completion uses to another one and seeing that the technique does not work? Will queue. Thanks. > > Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> > --- > contrib/completion/git-completion.bash | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash > index db7fd87b6b..c8fdcf8644 100644 > --- a/contrib/completion/git-completion.bash > +++ b/contrib/completion/git-completion.bash > @@ -400,7 +400,7 @@ __gitcomp_builtin () > if [ -z "$options" ]; then > # leading and trailing spaces are significant to make > # option removal work correctly. > - options=" $(__git ${cmd/_/ } --git-completion-helper) $incl " > + options=" $incl $(__git ${cmd/_/ } --git-completion-helper) " > for i in $excl; do > options="${options/ $i / }" > done
On Mon, Oct 22, 2018 at 5:51 AM Junio C Hamano <gitster@pobox.com> wrote: > > Nguyễn Thái Ngọc Duy <pclouds@gmail.com> writes: > > > __gitcomp_builtin() has the main completion list provided by > > > > git xxx --git-completion-helper > > > > but the caller can also add extra options that is not provided by > > --git-completion-helper. The only call site that does this is "git > > difftool" completion. > > > > This support is broken by b221b5ab9b (completion: collapse extra > > --no-.. options - 2018-06-06), which adds a special value "--" to mark > > that the rest of the options can be hidden by default. The commit > > forgets the fact that extra options are appended after > > "$(git xxx --git-completion-helper)", i.e. after this "--", and will > > be incorrectly hidden as well. > > > > Prepend the extra options before "$(git xxx --git-completion-helper)" > > to avoid this. > > Thanks for a clear analysis. How did you find it? Got annoyed that > completion of difftool got broken, or discovered while trying to > apply the same trick as difftool completion uses to another one and > seeing that the technique does not work? I was fixing format-patch completion and was surprised it did not work as expected. Never really used difftool myself :P I only found out about it when I asked myself "why wasn't this breakage found earlier?"
On Mon, Oct 22, 2018 at 04:34:16PM +0200, Duy Nguyen wrote: > On Mon, Oct 22, 2018 at 5:51 AM Junio C Hamano <gitster@pobox.com> wrote: > > > > Nguyễn Thái Ngọc Duy <pclouds@gmail.com> writes: > > > > > __gitcomp_builtin() has the main completion list provided by > > > > > > git xxx --git-completion-helper > > > > > > but the caller can also add extra options that is not provided by > > > --git-completion-helper. The only call site that does this is "git > > > difftool" completion. > > > > > > This support is broken by b221b5ab9b (completion: collapse extra > > > --no-.. options - 2018-06-06), which adds a special value "--" to mark > > > that the rest of the options can be hidden by default. The commit > > > forgets the fact that extra options are appended after > > > "$(git xxx --git-completion-helper)", i.e. after this "--", and will > > > be incorrectly hidden as well. > > > > > > Prepend the extra options before "$(git xxx --git-completion-helper)" > > > to avoid this. > > > > Thanks for a clear analysis. How did you find it? Got annoyed that > > completion of difftool got broken, or discovered while trying to > > apply the same trick as difftool completion uses to another one and > > seeing that the technique does not work? > > I was fixing format-patch completion and was surprised it did not work > as expected. Never really used difftool myself :P I only found out > about it when I asked myself "why wasn't this breakage found earlier?" Erm... maybe because there are no tests covering the combination of extra options and '--no-..' options in 't9902-completion.sh'? (Hint, hint... :)
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash index db7fd87b6b..c8fdcf8644 100644 --- a/contrib/completion/git-completion.bash +++ b/contrib/completion/git-completion.bash @@ -400,7 +400,7 @@ __gitcomp_builtin () if [ -z "$options" ]; then # leading and trailing spaces are significant to make # option removal work correctly. - options=" $(__git ${cmd/_/ } --git-completion-helper) $incl " + options=" $incl $(__git ${cmd/_/ } --git-completion-helper) " for i in $excl; do options="${options/ $i / }" done
__gitcomp_builtin() has the main completion list provided by git xxx --git-completion-helper but the caller can also add extra options that is not provided by --git-completion-helper. The only call site that does this is "git difftool" completion. This support is broken by b221b5ab9b (completion: collapse extra --no-.. options - 2018-06-06), which adds a special value "--" to mark that the rest of the options can be hidden by default. The commit forgets the fact that extra options are appended after "$(git xxx --git-completion-helper)", i.e. after this "--", and will be incorrectly hidden as well. Prepend the extra options before "$(git xxx --git-completion-helper)" to avoid this. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> --- contrib/completion/git-completion.bash | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)