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.$branch_name.description" >/dev/null
  46         then
  47                 branch_name=
  48         fi
  49 fi
  50
  51 test -n "$base" && test -n "$url" || usage
  52 baserev=$(git rev-parse --verify "$base"^0) &&
  53 headrev=$(git rev-parse --verify "$head"^0) || exit
  54
  55 merge_base=$(git merge-base $baserev $headrev) ||
  56 die "fatal: No commits in common between $base and $head"
  57
  58 find_matching_branch="/^$headrev        "'refs\/heads\//{
  59         s/^.*   refs\/heads\///
  60         p
  61         q
  62 }'
  63 branch=$(git ls-remote "$url" | sed -n -e "$find_matching_branch")
  64 url=$(git ls-remote --get-url "$url")
  65
  66 git show -s --format='The following changes since commit %H:
  67
  68   %s (%ci)
  69
  70 are available in the git repository at:
  71 ' $baserev &&
  72 echo "  $url${branch+ $branch}" &&
  73 git show -s --format='
  74 for you to fetch changes up to %H:
  75
  76   %s (%ci)
  77
  78 ----------------------------------------------------------------' $headrev &&
  79
  80 if test -n "$branch_name"
  81 then
  82         echo "(from the branch description for $branch local branch)"
  83         echo
  84         git config "branch.$branch_name.description"
  85         echo "----------------------------------------------------------------"
  86 fi &&
  87 git shortlog ^$baserev $headrev &&
  88 git diff -M --stat --summary $patch $merge_base..$headrev || status=1
  89
  90 if test -z "$branch"
  91 then
  92         echo "warn: No branch of $url is at:" >&2
  93         git show -s --format='warn:   %h: %s' $headrev >&2
  94         echo "warn: Are you sure you pushed '$head' there?" >&2
  95         status=1
  96 fi
  97 exit $status