checkout -b <name>: correctly detect existing branch
[git/mjg.git] / git-request-pull.sh
blob6fdea397ddec3cfa4ff37cdf672e7cced840bb60
1 #!/bin/sh
2 # Copyright 2005, Ryan Anderson <ryan@michonline.com>
4 # This file is licensed under the GPL v2, or a later version
5 # at the discretion of Linus Torvalds.
7 USAGE='<start> <url> [<end>]'
8 LONG_USAGE='Summarizes the changes between two commits to the standard output,
9 and includes the given URL in the generated summary.'
10 SUBDIRECTORY_OK='Yes'
11 OPTIONS_KEEPDASHDASH=
12 OPTIONS_SPEC='git request-pull [options] start url [end]
14 p show patch text as well
17 . git-sh-setup
18 . git-parse-remote
20 GIT_PAGER=
21 export GIT_PAGER
23 patch=
24 while case "$#" in 0) break ;; esac
26 case "$1" in
27 -p)
28 patch=-p ;;
29 --)
30 shift; break ;;
31 -*)
32 usage ;;
34 break ;;
35 esac
36 shift
37 done
39 base=$1
40 url=$2
41 head=${3-HEAD}
43 [ "$base" ] || usage
44 [ "$url" ] || usage
46 baserev=`git rev-parse --verify "$base"^0` &&
47 headrev=`git rev-parse --verify "$head"^0` || exit
49 merge_base=`git merge-base $baserev $headrev` ||
50 die "fatal: No commits in common between $base and $head"
52 branch=$(git ls-remote "$url" \
53 | sed -n -e "/^$headrev refs.heads./{
54 s/^.* refs.heads.//
57 }")
58 url=$(get_remote_url "$url")
59 if [ -z "$branch" ]; then
60 echo "warn: No branch of $url is at:" >&2
61 git log --max-count=1 --pretty='tformat:warn: %h: %s' $headrev >&2
62 echo "warn: Are you sure you pushed $head there?" >&2
63 echo >&2
64 echo >&2
65 branch=..BRANCH.NOT.VERIFIED..
66 status=1
69 git show -s --format='The following changes since commit %H:
71 %s (%ci)
73 are available in the git repository at:' $baserev &&
74 echo " $url $branch" &&
75 echo &&
77 git shortlog ^$baserev $headrev &&
78 git diff -M --stat --summary $patch $merge_base..$headrev || exit
79 exit $status