git-request-pull.sh

   1 #!/bin/sh
   2 # Copyright 2005, Ryan Anderson <ryan@michonline.com>
   3 #
   4 # This file is licensed under the GPL v2, or a later version
   5 # at the discretion of Linus Torvalds.
   6
   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]
  13 --
  14 p    show patch text as well
  15 '
  16
  17 . git-sh-setup
  18
  19 GIT_PAGER=
  20 export GIT_PAGER
  21
  22 patch=
  23 while   case "$#" in 0) break ;; esac
  24 do
  25         case "$1" in
  26         -p)
  27                 patch=-p ;;
  28         --)
  29                 shift; break ;;
  30         -*)
  31                 usage ;;
  32         *)
  33                 break ;;
  34         esac
  35         shift
  36 done
  37
  38 base=$1 url=$2 head=${3-HEAD} status=0 branch_name=
  39
  40 headref=$(git symbolic-ref -q "$head")
  41 if git show-ref -q --verify "$headref"
  42 then
  43         branch_name=${headref#refs/heads/}
  44         if test "z$branch_name" = "z$headref" ||
  45                 ! git config "branch.$branch_name.description" >/dev/null
  46         then
  47                 branch_name=
  48         fi
  49 fi
  50
  51 tag_name=$(git describe --exact "$head^0" 2>/dev/null)
  52
  53 test -n "$base" && test -n "$url" || usage
  54 baserev=$(git rev-parse --verify "$base"^0) &&
  55 headrev=$(git rev-parse --verify "$head"^0) || exit
  56
  57 merge_base=$(git merge-base $baserev $headrev) ||
  58 die "fatal: No commits in common between $base and $head"
  59
  60 find_matching_branch="/^$headrev        "'refs\/heads\//{
  61         s/^.*   refs\/heads\///
  62         p
  63         q
  64 }'
  65 branch=$(git ls-remote "$url" | sed -n -e "$find_matching_branch")
  66 url=$(git ls-remote --get-url "$url")
  67
  68 git show -s --format='The following changes since commit %H:
  69
  70   %s (%ci)
  71
  72 are available in the git repository at:
  73 ' $baserev &&
  74 echo "  $url${branch+ $branch}" &&
  75 git show -s --format='
  76 for you to fetch changes up to %H:
  77
  78   %s (%ci)
  79
  80 ----------------------------------------------------------------' $headrev &&
  81
  82 if test -n "$branch_name"
  83 then
  84         echo "(from the branch description for $branch local branch)"
  85         echo
  86         git config "branch.$branch_name.description"
  87 fi &&
  88
  89 if test -n "$tag_name"
  90 then
  91         git cat-file tag "$tag_name" |
  92         sed -n -e '1,/^$/d' -e '/^-----BEGIN PGP /q' -e p
  93         echo
  94 fi &&
  95
  96 if test -n "$branch_name" || test -n "$tag_name"
  97 then
  98         echo "----------------------------------------------------------------"
  99 fi &&
 100
 101 git shortlog ^$baserev $headrev &&
 102 git diff -M --stat --summary $patch $merge_base..$headrev || status=1
 103
 104 if test -z "$branch"
 105 then
 106         echo "warn: No branch of $url is at:" >&2
 107         git show -s --format='warn:   %h: %s' $headrev >&2
 108         echo "warn: Are you sure you pushed '$head' there?" >&2
 109         status=1
 110 fi
 111 exit $status