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authorDan McGee <dan@archlinux.org>2009-06-16 20:04:19 -0500
committerDan McGee <dan@archlinux.org>2009-06-23 21:51:42 -0500
commit8bbaf045b9ce7933778aa3c7e84ad4dc7c377238 (patch)
tree38b696a6e069fab792d0e355d0c24b3586c21e48
parentf250b034b407d45bb08c7b713b01d25e0bb2b6ee (diff)
downloadpacman-8bbaf045b9ce7933778aa3c7e84ad4dc7c377238.tar.xz
repo-add: use bsdtar optimization for better performance
When unzipping packages and the database archives, we don't need to look through the entire archive to do what we need to do. For packages, .PKGINFO should only be found once and should be the first file in the package. For the database check, we only really need to look for one desc file. The bsdtar -q option is very similar to the GNU tar --occurrence=1 option. Example of speedup: $ time repo-add junkdb.db.tar.gz *.pkg.tar.gz >/dev/null real 0m16.159s user 0m14.836s sys 0m2.277s $ time ./scripts/repo-add junkdb.db.tar.gz *.pkg.tar.gz >/dev/null real 0m4.949s user 0m3.730s sys 0m2.093s Signed-off-by: Dan McGee <dan@archlinux.org>
-rw-r--r--scripts/repo-add.sh.in6
1 files changed, 3 insertions, 3 deletions
diff --git a/scripts/repo-add.sh.in b/scripts/repo-add.sh.in
index 7c12aaf2..5454fb0c 100644
--- a/scripts/repo-add.sh.in
+++ b/scripts/repo-add.sh.in
@@ -193,7 +193,7 @@ db_write_entry()
# read info from the zipped package
local line var val
- for line in $(bsdtar -xOf "$pkgfile" .PKGINFO |
+ for line in $(bsdtar -xOqf "$pkgfile" .PKGINFO |
grep -v '^#' | sed 's|\(\w*\)\s*=\s*\(.*\)|\1 \2|'); do
# bash awesomeness here- var is always one word, val is everything else
var=${line%% *}
@@ -305,7 +305,7 @@ check_repo_db()
fi
if [ -f "$REPO_DB_FILE" ]; then
- if ! (bsdtar -tf "$REPO_DB_FILE" | grep -q "/desc"); then
+ if ! bsdtar -tqf "$REPO_DB_FILE" '*/desc' 2>&1 >/dev/null; then
error "$(gettext "Repository file '%s' is not a proper pacman database.")" "$REPO_DB_FILE"
exit 1
fi
@@ -351,7 +351,7 @@ add()
fi
pkgfile=$1
- if ! bsdtar -tf "$pkgfile" .PKGINFO 2>&1 >/dev/null; then
+ if ! bsdtar -tqf "$pkgfile" .PKGINFO 2>&1 >/dev/null; then
error "$(gettext "'%s' is not a package file, skipping")" "$pkgfile"
return 1
fi