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Teach git-tag about showing tag annotations.

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The <pattern> for -l is now a shell pattern, not a list of grep parameters.
Option -l may be repeated with another <pattern>.

The new -n [<num>] option specifies how many lines from
the annotation are to be printed.
Not specifieing -n or -n 0 will just produce the tag names
Just -n or -n 1 will show the first line of the annotation on
the tag line.
Other valuse for -n will show that number of lines from the annotation.

The exit code used to indicate if any tag was found.
This is changed due to a different implementation.

A good way to test a tag for existence is to use:
git show-ref --quiet --verify refs/tags/$TAGNAME

Signed-off-by: Matthijs Melchior <mmelchior@xs4all.nl>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Matthijs Melchior 2007-06-03 02:05:39 +02:00 committed by Junio C Hamano
parent c94bf41c9a
commit 980ea5c5bb
2 changed files with 46 additions and 11 deletions
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13
Documentation/git-tag.txt
View File

@ -11,7 +11,7 @@ SYNOPSIS
[verse]
'git-tag' [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>] <name> [<head>]
'git-tag' -d <name>...
'git-tag' -l [<pattern>]
'git-tag' [-n [<num>]] -l [<pattern>]
'git-tag' -v <name>
DESCRIPTION
@ -38,8 +38,8 @@ GnuPG key for signing.
`-v <tag>` verifies the gpg signature of the tag.
`-l <pattern>` lists tags that match the given pattern (or all
if no pattern is given).
`-l <pattern>` lists tags with names that match the given pattern
(or all if no pattern is given).
OPTIONS
-------
@ -61,8 +61,13 @@ OPTIONS
-v::
Verify the gpg signature of given the tag
-n <num>::
<num> specifies how many lines from the annotation, if any,
are printed when using -l.
The default is not to print any annotation lines.
-l <pattern>::
List tags that match the given pattern (or all if no pattern is given).
List tags with names that match the given pattern (or all if no pattern is given).
-m <msg>::
Use the given tag message (instead of prompting)

44
git-tag.sh
View File

@ -1,7 +1,7 @@
#!/bin/sh
# Copyright (c) 2005 Linus Torvalds
USAGE='-l [<pattern>] | [-a | -s | -u <key-id>] [-f | -d | -v] [-m <msg>] <tagname> [<head>]'
USAGE='[-n [<num>]] -l [<pattern>] | [-a | -s | -u <key-id>] [-f | -d | -v] [-m <msg>] <tagname> [<head>]'
SUBDIRECTORY_OK='Yes'
. git-sh-setup
@ -13,6 +13,7 @@ message=
username=
list=
verify=
LINES=0
while case "$#" in 0) break ;; esac
do
case "$1" in
@ -26,14 +27,41 @@ do
-f)
force=1
;;
-l)
case "$#" in
1)
set x . ;;
-n)
case $2 in
-*) LINES=1 # no argument
;;
*) shift
LINES=$(expr "$1" : '\([0-9]*\)')
[ -z "$LINES" ] && LINES=1 # 1 line is default when -n is used
;;
esac
;;
-l)
list=1
shift
git rev-parse --symbolic --tags | sort | grep "$@"
exit $?
PATTERN="$1" # select tags by shell pattern, not re
git rev-parse --symbolic --tags | sort |
while read TAG
do
case "$TAG" in
*$PATTERN*) ;;
*) continue ;;
esac
[ "$LINES" -le 0 ] && { echo "$TAG"; continue ;}
OBJTYPE=$(git cat-file -t "$TAG")
case $OBJTYPE in
tag) ANNOTATION=$(git cat-file tag "$TAG" |
sed -e '1,/^$/d' \
-e '/^-----BEGIN PGP SIGNATURE-----$/Q' )
printf "%-15s %s\n" "$TAG" "$ANNOTATION" |
sed -e '2,$s/^/ /' \
-e "${LINES}q"
;;
*) echo "$TAG"
;;
esac
done
;;
-m)
annotate=1
@ -97,6 +125,8 @@ do
shift
done
[ -n "$list" ] && exit 0
name="$1"
[ "$name" ] || usage
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