| 1 | #! /bin/sh |
| 2 | ### -*-sh-*- |
| 3 | ### |
| 4 | ### Make autoconf-like substitutions in files |
| 5 | ### |
| 6 | ### (c) 2008 Mark Wooding |
| 7 | ### |
| 8 | |
| 9 | ###----- Licensing notice --------------------------------------------------- |
| 10 | ### |
| 11 | ### This file is part of the Common Files Distribution (`common'). |
| 12 | ### |
| 13 | ### `Common' is free software; you can redistribute it and/or modify |
| 14 | ### it under the terms of the GNU General Public License as published by |
| 15 | ### the Free Software Foundation; either version 2 of the License, or |
| 16 | ### (at your option) any later version. |
| 17 | ### |
| 18 | ### `Common' is distributed in the hope that it will be useful, |
| 19 | ### but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | ### GNU General Public License for more details. |
| 22 | ### |
| 23 | ### You should have received a copy of the GNU General Public License |
| 24 | ### along with `common'; if not, write to the Free Software Foundation, |
| 25 | ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 26 | |
| 27 | set -e |
| 28 | VERSION="@VERSION@" |
| 29 | |
| 30 | ###-------------------------------------------------------------------------- |
| 31 | ### Parse command line arguments. |
| 32 | |
| 33 | while [ $# -gt 0 ]; do |
| 34 | case $1 in |
| 35 | -h | --h | --he | --hel | --help) |
| 36 | cat <<EOF |
| 37 | Usage: confsubst FILE TAG=VALUE... |
| 38 | |
| 39 | Replaces occurrences of @TAG@ in FILE with VALUE, and writes the result to |
| 40 | standard output. |
| 41 | EOF |
| 42 | exit 0 |
| 43 | ;; |
| 44 | -v | --v | --ve | --ver | --vers | --versi | --versio | --version) |
| 45 | echo "confsubst: Common Files Distribution version $VERSION" |
| 46 | exit 0 |
| 47 | ;; |
| 48 | --) |
| 49 | shift |
| 50 | break |
| 51 | ;; |
| 52 | -) |
| 53 | break |
| 54 | ;; |
| 55 | -*) |
| 56 | echo "confsubst: unknown option \`$1'" >&2 |
| 57 | exit 1 |
| 58 | ;; |
| 59 | *) |
| 60 | break |
| 61 | ;; |
| 62 | esac |
| 63 | shift |
| 64 | done |
| 65 | |
| 66 | if [ $# -lt 1 ]; then |
| 67 | echo >&2 "Usage: confsubst FILE TAG=VALUE..." |
| 68 | exit 1 |
| 69 | fi |
| 70 | file=$1; shift |
| 71 | |
| 72 | ###-------------------------------------------------------------------------- |
| 73 | ### Main code. |
| 74 | |
| 75 | subst="" |
| 76 | for fixup; do |
| 77 | case "$fixup" in |
| 78 | *?=*) ;; |
| 79 | *) echo >&2 "$0: bad substitution: $fixup"; exit 1 ;; |
| 80 | esac |
| 81 | tag=${fixup%%=*} value=${fixup#*=} |
| 82 | subst="$subst s\a@$tag@\a$value\ag;" |
| 83 | done |
| 84 | |
| 85 | sed "$subst" $file || exit $? |
| 86 | |
| 87 | ###----- That's all, folks -------------------------------------------------- |