[PATCH v3 04/42] git-completion.bash: introduce __gitcomp_builtin
From: Nguyễn Thái Ngọc Duy <hidden>
Date: 2018-02-09 11:03:03
Subsystem:
the rest · Maintainer:
Linus Torvalds
This is a __gitcomp wrapper that will execute
git ... --git-completion-helper
to get the list of completable options. The call will be made only
once and cached to avoid performance issues, especially on Windows.
__gitcomp_builtin() allows callers to change its output a bit by adding
some more options, or removing some.
- Current --git-completion-helper for example does not output --no-foo
form, this has to be added manually by __gitcomp_builtin() callers
when necessary
- Some options from --git-completion-helper should only be available in
certain conditions (e.g. --continue and friends). __gitcomp_builtin()
callers can remove them if the conditions are not met.
Signed-off-by: Nguyễn Thái Ngọc Duy <redacted>
---
contrib/completion/git-completion.bash | 33 ++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 3683c772c5..85e7f26328 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash@@ -280,6 +280,39 @@ __gitcomp () esac } +# This function is equivalent to +# +# __gitcomp "$(git xxx --git-completion-helper) ..." +# +# except that the output is cached. Accept 1-3 arguments: +# 1: the git command to execute, this is also the cache key +# 2: extra options to be added on top (e.g. negative forms) +# 3: options to be excluded +__gitcomp_builtin () +{ + # spaces must be replaced with underscore for multi-word + # commands, e.g. "git remote add" becomes remote_add. + local cmd="$1" + local incl="$2" + local excl="$3" + + local var=__gitcomp_builtin_"${cmd/-/_}" + local options + eval "options=\$$var" + + if [ -z "$options" ]; then + # leading and trailing spaces are significant to make + # option removal work correctly. + options=" $(__git ${cmd/_/ } --git-completion-helper) $incl " + for i in $excl; do + options="${options/ $i / }" + done + eval "$var=\"$options\"" + fi + + __gitcomp "$options" +} + # Variation of __gitcomp_nl () that appends to the existing list of # completion candidates, COMPREPLY. __gitcomp_nl_append ()
--
2.16.1.207.gedba492059