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071d8496 JB |
1 | #!/bin/sh |
2 | # This script reads filenames from STDIN and outputs any relevant requires | |
3 | # information that needs to be included in the package. | |
4 | # | |
5 | # Based on rpm-4.4.2/scripts/find-req.pl | |
6 | # Authors: Elan Ruusamäe <glen@pld-linux.org> | |
7 | ||
8 | export PATH="/sbin:/usr/sbin:/bin:/usr/bin" | |
9 | ||
10 | javaclassversion() { | |
2e8dae56 | 11 | [ $# -gt 0 ] || return 1 |
071d8496 | 12 | |
2e8dae56 ER |
13 | local classver=$(echo "$@" | xargs -r file | grep -o 'compiled Java class data, version [0-9.]*' | awk '{print $NF}' | sort -u) |
14 | if [ -z "$classver" ]; then | |
15 | return 1 | |
16 | fi | |
17 | ||
18 | local v | |
071d8496 JB |
19 | for v in $classver; do |
20 | echo "java(ClassDataVersion) >= $v" | |
21 | done | |
2e8dae56 | 22 | return 0 |
071d8496 JB |
23 | } |
24 | ||
25 | javajarversion() { | |
26 | local jar="$1" | |
2e8dae56 | 27 | local ret=0 |
071d8496 JB |
28 | |
29 | # check only files, symlinks could point outside buildroot | |
2e8dae56 | 30 | [ -f "$jar" -a ! -L "$jar" ] || return $ret |
071d8496 JB |
31 | |
32 | tmp=$(mktemp -d) | |
33 | unzip -q -d $tmp $jar >&2 | |
2e8dae56 ER |
34 | javaclassversion $(find $tmp -type f -name '*.class') || { |
35 | echo >&2 "ERROR: Class version could not be extracted from $jar" | |
36 | ret=1 | |
37 | } | |
071d8496 | 38 | rm -rf $tmp |
071d8496 | 39 | |
2e8dae56 ER |
40 | return $ret |
41 | } | |
071d8496 JB |
42 | |
43 | find_requires() { | |
2e8dae56 | 44 | local ret=0 |
071d8496 JB |
45 | for file in $FILES; do |
46 | case $file in | |
47 | *.jar) | |
2e8dae56 | 48 | javajarversion "$file" || ret=1 |
071d8496 JB |
49 | ;; |
50 | *.class) | |
2e8dae56 ER |
51 | javaclassversion "$file" || { |
52 | echo >&2 "ERROR: Class version could not be extracted from $file" | |
53 | ret=1 | |
54 | } | |
071d8496 JB |
55 | ;; |
56 | esac | |
57 | done | |
2e8dae56 | 58 | return $ret |
071d8496 JB |
59 | } |
60 | ||
2e8dae56 ER |
61 | FILES=$(cat -) |
62 | ||
63 | t=$(mktemp) | |
64 | ret=0 | |
65 | find_requires > $t || ret=1 | |
66 | rm -f $t | |
67 | exit $ret |