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[RFC/PATCH 2/2] bash: use for-each-ref format 'refbasename'

From
SZEDER Gábor <szeder@ira.uka.de>
Date
Aug 29, 2008, 10:37 UTC
Message-ID
<31df5ea75841b142240e04ac82153c39d5e11abb.1220004755.git.szeder@ira.uka.de>
In-Reply-To
<0329f1ab2642e1dab701b5fc6517bfb1b4ea2d46.1220004755.git.szeder@ira.uka.de>

Using this format simplifies the code for completing refs and (in some cases) improves performance significantly.

For repositories like the current git.git (with more than 200 refs) there are no real performance difference, but for a repository with 2000 refs the total time needed to complete the refs is around 40% less (from around 480ms to around 295ms).

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
---
 contrib/completion/git-completion.bash |   26 ++++++--------------------
 1 files changed, 6 insertions(+), 20 deletions(-)
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 4f64f8a..8269c42 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -154,11 +154,8 @@ __git_heads ()
 {
 	local cmd i is_hash=y dir="$(__gitdir "$1")"
 	if [ -d "$dir" ]; then
-		for i in $(git --git-dir="$dir" \
-			for-each-ref --format='%(refname)' \
-			refs/heads ); do
-			echo "${i#refs/heads/}"
-		done
+		git --git-dir="$dir" for-each-ref --format='%(refbasename)' \
+			refs/heads
 		return
 	fi
 	for i in $(git ls-remote "$1" 2>/dev/null); do
@@ -175,11 +172,8 @@ __git_tags ()
 {
 	local cmd i is_hash=y dir="$(__gitdir "$1")"
 	if [ -d "$dir" ]; then
-		for i in $(git --git-dir="$dir" \
-			for-each-ref --format='%(refname)' \
-			refs/tags ); do
-			echo "${i#refs/tags/}"
-		done
+		git --git-dir="$dir" for-each-ref --format='%(refbasename)' \
+			refs/tags
 		return
 	fi
 	for i in $(git ls-remote "$1" 2>/dev/null); do
@@ -197,16 +191,8 @@ __git_refs ()
 	local cmd i is_hash=y dir="$(__gitdir "$1")"
 	if [ -d "$dir" ]; then
 		if [ -e "$dir/HEAD" ]; then echo HEAD; fi
-		for i in $(git --git-dir="$dir" \
-			for-each-ref --format='%(refname)' \
-			refs/tags refs/heads refs/remotes); do
-			case "$i" in
-				refs/tags/*)    echo "${i#refs/tags/}" ;;
-				refs/heads/*)   echo "${i#refs/heads/}" ;;
-				refs/remotes/*) echo "${i#refs/remotes/}" ;;
-				*)              echo "$i" ;;
-			esac
-		done
+		git --git-dir="$dir" for-each-ref --format='%(refbasename)' \
+			refs/tags refs/heads refs/remotes
 		return
 	fi
 	for i in $(git ls-remote "$dir" 2>/dev/null); do
-- 
1.6.0.1.133.g10dd.dirty
Previous: SZEDER GáborNext: Shawn O. Pearce
Message 2 of 8 in “for-each-ref: add new format 'refbasename'”
  1. 1/2 for-each-ref: add new format 'refbasename'SZEDER Gábor, Aug 29, 2008
  2. 2/2 bash: use for-each-ref format 'refbasename'SZEDER Gábor, Aug 29, 2008
  3. Shawn O. PearceAug 29, 2008
  4. 1/2 for-each-ref: add new format 'refbasename'SZEDER Gábor, Aug 29, 2008
  5. Bert WesargAug 29, 2008
  6. for-each-ref: new 'refshort' formatBert Wesarg, Aug 29, 2008
  7. Junio C HamanoAug 31, 2008
  8. Bert WesargAug 31, 2008

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