~mdw / runlisp / 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 | |
| 29 | ###-------------------------------------------------------------------------- | |
| 30 | ### Parse command line arguments. | |
| 31 | ||
| 32 | while [ $# -gt 0 ]; do | |
| 33 | case $1 in | |
| 34 | -h | --h | --he | --hel | --help) | |
| 35 | cat <<EOF | |
| 36 | Usage: confsubst FILE TAG=VALUE... | |
| 37 | ||
| 38 | Replaces occurrences of @TAG@ in FILE with VALUE, and writes the result to | |
| 39 | standard output. | |
| 40 | EOF | |
| 41 | exit 0 | |
| 42 | ;; | |
| ba4d97a4 MW |
43 | --) |
| 44 | shift | |
| 45 | break | |
| 46 | ;; | |
| 47 | -) | |
| 48 | break | |
| 49 | ;; | |
| 50 | -*) | |
| 51 | echo "confsubst: unknown option \`$1'" >&2 | |
| 52 | exit 1 | |
| 53 | ;; | |
| 54 | *) | |
| 55 | break | |
| 56 | ;; | |
| 57 | esac | |
| 58 | shift | |
| 59 | done | |
| 60 | ||
| 61 | if [ $# -lt 1 ]; then | |
| 62 | echo >&2 "Usage: confsubst FILE TAG=VALUE..." | |
| 63 | exit 1 | |
| 64 | fi | |
| 65 | file=$1; shift | |
| 66 | ||
| 67 | ###-------------------------------------------------------------------------- | |
| 68 | ### Main code. | |
| 69 | ||
| 70 | subst="" | |
| 71 | for fixup; do | |
| 72 | case "$fixup" in | |
| 87eaf275 | 73 | *?=*) ;; |
| ba4d97a4 MW |
74 | *) echo >&2 "$0: bad substitution: $fixup"; exit 1 ;; |
| 75 | esac | |
| de8440ce | 76 | tag=${fixup%%=*} value=${fixup#*=} |
| ba4d97a4 MW |
77 | subst="$subst s\a@$tag@\a$value\ag;" |
| 78 | done | |
| 79 | ||
| 80 | sed "$subst" $file || exit $? | |
| 81 | ||
| 82 | ###----- That's all, folks -------------------------------------------------- |