~mdw / cfd / blame
| Commit | Line | Data |
|---|---|---|
| ba4d97a4 MW |
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 | |
| ba4d97a4 MW |
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: $fixup"; exit 1 ;; | |
| 80 | esac | |
| 81 | tag=$(echo "$fixup" | sed 's/=.*$//') && \ | |
| 82 | value=$(echo "$fixup" | sed 's/^[^=]*=//') && \ | |
| 83 | subst="$subst s\a@$tag@\a$value\ag;" | |
| 84 | done | |
| 85 | ||
| 86 | sed "$subst" $file || exit $? | |
| 87 | ||
| 88 | ###----- That's all, folks -------------------------------------------------- |