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| author |  Shawn O. Pearce <spearce@spearce.org> | 2008-07-13 02:37:42 +0000 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2008-07-13 11:36:04 -0700 |
| commit | ab02dfe533f55535bdb66e05776a4081020322c6 (patch) | |
| tree | 09ccb8ff24605bbc2e27d9ee7a69d714400f73eb | |
| parent | Start preparing release notes for 1.5.6.3 (diff) | |
| download | tgif-ab02dfe533f55535bdb66e05776a4081020322c6.tar.xz | |
bash completion: Improve responsiveness of git-log completion
Junio noticed the bash completion has been taking a long time lately.
Petr Baudis tracked it down to 72e5e989b ("bash: Add space after
unique command name is completed."). Tracing the code showed
we spent significant time inside of this loop within __gitcomp,
due to the string copying overhead.
[28.146109654] _git common over
[28.164791148] gitrefs in
[28.280302268] gitrefs dir out
[28.300939737] gitcomp in
[28.308378112] gitcomp pre-case
* [28.313407453] gitcomp iter in
* [28.701270296] gitcomp iter out
[28.713370786] out normal
Since __git_refs avoids this string copying by forking and using
echo we use the same trick here when we need to finish generating
the names for the caller.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rwxr-xr-x | contrib/completion/git-completion.bash | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash index cff28a88af..0734ea313c 100755 --- a/contrib/completion/git-completion.bash +++ b/contrib/completion/git-completion.bash @@ -114,9 +114,20 @@ __git_ps1 () fi } +__gitcomp_1 () +{ + local c IFS=' '$'\t'$'\n' + for c in $1; do + case "$c$2" in + --*=*) printf %s$'\n' "$c$2" ;; + *.) printf %s$'\n' "$c$2" ;; + *) printf %s$'\n' "$c$2 " ;; + esac + done +} + __gitcomp () { - local all c s=$'\n' IFS=' '$'\t'$'\n' local cur="${COMP_WORDS[COMP_CWORD]}" if [ $# -gt 2 ]; then cur="$3" @@ -124,21 +135,14 @@ __gitcomp () case "$cur" in --*=) COMPREPLY=() - return ;; *) - for c in $1; do - case "$c$4" in - --*=*) all="$all$c$4$s" ;; - *.) all="$all$c$4$s" ;; - *) all="$all$c$4 $s" ;; - esac - done + local IFS=$'\n' + COMPREPLY=($(compgen -P "$2" \ + -W "$(__gitcomp_1 "$1" "$4")" \ + -- "$cur")) ;; esac - IFS=$s - COMPREPLY=($(compgen -P "$2" -W "$all" -- "$cur")) - return } __git_heads () |