build-aux/do-release-commit-and-tag

   1 #!/bin/sh
   2 # In a git/autoconf/automake-enabled project with a NEWS file and a version-
   3 # controlled .prev-version file, automate the procedure by which we record
   4 # the date, release-type and version string in the NEWS file.  That commit
   5 # will serve to identify the release, so apply a signed tag to it as well.
   6 VERSION=2018-03-07.03 # UTC
   7
   8 # Note: this is a bash script (could be zsh or dash)
   9
  10 # Copyright (C) 2009-2018 Free Software Foundation, Inc.
  11
  12 # This program is free software: you can redistribute it and/or modify
  13 # it under the terms of the GNU General Public License as published by
  14 # the Free Software Foundation, either version 3 of the License, or
  15 # (at your option) any later version.
  16
  17 # This program is distributed in the hope that it will be useful,
  18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 # GNU General Public License for more details.
  21
  22 # You should have received a copy of the GNU General Public License
  23 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  24
  25 # Written by Jim Meyering
  26
  27 ME=$(basename "$0")
  28 warn() { printf '%s: %s\n' "$ME" "$*" >&2; }
  29 die() { warn "$*"; exit 1; }
  30
  31 help()
  32 {
  33   cat <<EOF
  34 Usage: $ME [OPTION...] VERSION RELEASE_TYPE
  35
  36 Run this script from top_srcdir to perform the final pre-release NEWS
  37 update in which the date, release-type and version string are
  38 recorded.  Commit that result with a log entry marking the release,
  39 and apply a signed tag.  Run it from your project's top-level
  40 directory.
  41
  42 Requirements:
  43 - you use git for version-control
  44 - a version-controlled .prev-version file
  45 - a NEWS file, with line 3 identical to this:
  46 $noteworthy_stub
  47
  48 Options:
  49   --branch=BRANCH     set release branch (default: $branch)
  50   -C, --builddir=DIR  location of (configured) Makefile (default: $builddir)
  51   --help              print this help, then exit
  52   --version           print version number, then exit
  53
  54 EXAMPLE:
  55 To update NEWS and tag the beta 8.1 release of coreutils, I would run this:
  56
  57   $ME 8.1 beta
  58
  59 Report bugs and patches to <bug-gnulib@gnu.org>.
  60 EOF
  61   exit
  62 }
  63
  64 version()
  65 {
  66   year=$(echo "$VERSION" | sed 's/[^0-9].*//')
  67   cat <<EOF
  68 $ME $VERSION
  69 Copyright (C) $year Free Software Foundation, Inc,
  70 License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>
  71 This is free software: you are free to change and redistribute it.
  72 There is NO WARRANTY, to the extent permitted by law.
  73 EOF
  74   exit
  75 }
  76
  77 ## ------ ##
  78 ## Main.  ##
  79 ## ------ ##
  80
  81 # Constants.
  82 noteworthy='* Noteworthy changes in release'
  83 noteworthy_stub="$noteworthy ?.? (????-??-??) [?]"
  84
  85 # Variables.
  86 branch=$(git branch | sed -ne '/^\* /{s///;p;q;}')
  87 builddir=.
  88
  89 while test $# != 0
  90 do
  91   # Handle --option=value by splitting apart and putting back on argv.
  92   case $1 in
  93     --*=*)
  94       opt=$(echo "$1" | sed -e 's/=.*//')
  95       val=$(echo "$1" | sed -e 's/[^=]*=//')
  96       shift
  97       set dummy "$opt" "$val" "$@"; shift
  98       ;;
  99   esac
 100
 101   case $1 in
 102     --help|--version) ${1#--};;
 103     --branch) shift; branch=$1; shift ;;
 104     -C|--builddir) shift; builddir=$1; shift ;;
 105     --*) die "unrecognized option: $1";;
 106     *) break;;
 107   esac
 108 done
 109
 110 test $# = 2 \
 111   || die "Usage: $ME [OPTION...] VERSION TYPE"
 112
 113 ver=$1
 114 type=$2
 115
 116
 117 ## ---------------------- ##
 118 ## First, sanity checks.  ##
 119 ## ---------------------- ##
 120
 121 # Verify that $ver looks like a version number, and...
 122 echo "$ver"|grep -E '^[0-9][0-9.]*[0-9]$' > /dev/null \
 123   || die "invalid version: $ver"
 124 prev_ver=$(cat .prev-version) \
 125   || die 'failed to determine previous version number from .prev-version'
 126
 127 # Verify that $ver is sensible (> .prev-version).
 128 case $(printf "$prev_ver\n$ver\n"|sort -V -u|tr '\n' ':') in
 129   "$prev_ver:$ver:") ;;
 130   *) die "invalid version: $ver (<= $prev_ver)";;
 131 esac
 132
 133 case $type in
 134   alpha|beta|stable) ;;
 135   *) die "invalid release type: $type";;
 136 esac
 137
 138 # No local modifications allowed.
 139 case $(git diff-index --name-only HEAD) in
 140   '') ;;
 141   *) die 'this tree is dirty; commit your changes first';;
 142 esac
 143
 144 # Ensure the current branch name is correct:
 145 curr_br=$(git rev-parse --symbolic-full-name HEAD)
 146 test "$curr_br" = "refs/heads/$branch" || die not on branch $branch
 147
 148 # Extract package name from Makefile.
 149 Makefile=$builddir/Makefile
 150 pkg=$(sed -n 's/^PACKAGE = \(.*\)/\1/p' "$Makefile") \
 151   || die "failed to determine package name from $Makefile"
 152
 153 # Check that line 3 of NEWS is the stub line about to be replaced.
 154 test "$(sed -n 3p NEWS)" = "$noteworthy_stub" \
 155   || die "line 3 of NEWS must be exactly '$noteworthy_stub'"
 156
 157 ## --------------- ##
 158 ## Then, changes.  ##
 159 ## --------------- ##
 160
 161 # Update NEWS to have today's date, plus desired version number and $type.
 162 perl -MPOSIX -ni -e 'my $today = strftime "%F", localtime time;' \
 163  -e 'my ($type, $ver) = qw('"$type $ver"');' \
 164  -e 'my $pfx = "'"$noteworthy"'";' \
 165  -e 'print $.==3 ? "$pfx $ver ($today) [$type]\n" : $_' \
 166      NEWS || die 'failed to update NEWS'
 167
 168 printf "version $ver\n\n* NEWS: Record release date.\n" \
 169     | git commit -F -  -a || die 'git commit failed'
 170 git tag -s -m "$pkg $ver" v$ver HEAD || die 'git tag failed'
 171
 172 # Local variables:
 173 # indent-tabs-mode: nil
 174 # eval: (add-hook 'before-save-hook 'time-stamp)
 175 # time-stamp-start: "VERSION="
 176 # time-stamp-format: "%:y-%02m-%02d.%02H"
 177 # time-stamp-time-zone: "UTC0"
 178 # time-stamp-end: " # UTC"
 179 # End: