Commit | Line | Data |
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420a0d19 | 1 | #!/bin/sh |
2ea97746 CE |
2 | # Copyright (c) The Exim Maintainers 1995 - 2018 |
3 | ||
4 | set -e | |
5 | LC_ALL=C | |
6 | export LC_ALL | |
420a0d19 CE |
7 | |
8 | # Update Exim's version header file. | |
9 | ||
10 | # Compatibility gross-ness for non-POSIX systems | |
11 | if [ -z "$EXIM_REVERSION_ADJUSTED" ] | |
12 | then | |
13 | SHELL=/bin/sh | |
14 | EXIM_REVERSION_ADJUSTED=yes | |
15 | export SHELL EXIM_REVERSION_ADJUSTED | |
16 | # Solaris: | |
17 | if [ -x /usr/xpg4/bin/sh ] | |
18 | then | |
19 | PATH="/usr/xpg4/bin:$PATH" | |
20 | SHELL=/usr/xpg4/bin/sh | |
21 | export PATH SHELL | |
22 | fi | |
23 | # Irix: | |
24 | _XPG=1 ; export _XPG | |
25 | # | |
26 | exec "$SHELL" "$0" "$@" | |
27 | fi | |
28 | ||
29 | # Read version information that was generated by a previous run of | |
30 | # this script, or during the release process. | |
31 | ||
2ea97746 CE |
32 | if [ -f ./version.sh ]; then |
33 | . ./version.sh | |
34 | elif [ -f ../src/version.sh ]; then | |
35 | . ../src/version.sh | |
36 | elif [ -d ../../.git ] || [ -f ../../.git ] || [ "$1" = release ]; then | |
37 | # Modify the output of git describe into separate parts for | |
38 | # the name "exim" and the release and variant versions. | |
39 | # Put a dot in the version number and remove a spurious g. | |
40 | if [ "$2" ] | |
41 | then | |
42 | description=$(git describe "$2") | |
43 | else | |
44 | description=$(git describe --dirty=-XX --match 'exim-4*') | |
45 | fi | |
46 | set $(echo "$description" | sed 's/-/ /; s/-g/-/') | |
47 | # Only update if we need to | |
48 | if [ "$2 $3" != "$EXIM_RELEASE_VERSION $EXIM_VARIANT_VERSION" ] | |
49 | then | |
50 | EXIM_RELEASE_VERSION="$2" | |
51 | EXIM_VARIANT_VERSION="$3" | |
52 | rm -f version.h | |
53 | fi | |
54 | else | |
55 | echo "Cannot determine the release number" >&2 | |
56 | exit | |
420a0d19 CE |
57 | fi |
58 | ||
59 | # If you are maintaining a patched version of Exim, you can either | |
60 | # create your own version.sh as part of your release process, or you | |
61 | # can modify EXIM_VARIANT_VERSION at this point in this script. | |
62 | ||
2ea97746 CE |
63 | if test -z "$EXIM_RELEASE_VERSION"; then |
64 | echo "$0: Your copy of Exim lacks any version information." >&2 | |
65 | exit 1 | |
66 | fi | |
420a0d19 CE |
67 | |
68 | EXIM_COMPILE_NUMBER=$(expr "${EXIM_COMPILE_NUMBER:-0}" + 1) | |
69 | ||
70 | echo "$EXIM_COMPILE_NUMBER" >cnumber.h | |
71 | ||
2ea97746 CE |
72 | # Reproducible builds, accept a build timestamp override from environ per |
73 | # <https://reproducible-builds.org/specs/source-date-epoch/>. | |
74 | # We require a fairly modern date(1) command here, which is not portable | |
75 | # to some of the systems Exim is built on. That's okay, because the scenarios | |
76 | # are: | |
77 | # 1) Local postmaster building, not using $SOURCE_DATE_EPOCH, doesn't matter | |
78 | # 2) Packaging folks who don't care about reproducible builds | |
79 | # 3) Packaging folks who care but are using systems where date Just Works | |
80 | # 3) Packaging folks who care and can put a modern date(1) in $PATH | |
81 | # 4) Packaging folks who care and can supply us with a clean patch to support | |
82 | # their requirements | |
83 | # 5) Packaging folks who care but won't do any work to support their strange | |
84 | # old systems and want us to do the work for them. We don't care either, | |
85 | # they're SOL and have to live without reproducible builds. | |
86 | # | |
87 | exim_build_date_override='' | |
88 | if [ ".${SOURCE_DATE_EPOCH:-}" != "." ]; then | |
89 | fmt='+%d-%b-%Y %H:%M:%S' | |
90 | # Non-reproducible, we use __DATE__ and __TIME__ in C, which respect timezone | |
91 | # (think localtime, not gmtime); for reproduction between systems, UTC makes | |
92 | # more sense and the examples available use UTC without explicitly mandating | |
93 | # it. I think that we can switch behavior and use UTC for reproducible | |
94 | # builds without it causing any problems: nothing really cares about timezone. | |
95 | # GNU date: "date -d @TS" | |
96 | # BSD date: "date -r TS" | |
97 | exim_build_date_override="$(date -u -d "@${SOURCE_DATE_EPOCH}" "$fmt" 2>/dev/null || date -u -r "${SOURCE_DATE_EPOCH}" "$fmt" 2>/dev/null)" | |
98 | fi | |
99 | ||
420a0d19 CE |
100 | ( echo '# automatically generated file - see ../scripts/reversion' |
101 | echo EXIM_RELEASE_VERSION='"'"$EXIM_RELEASE_VERSION"'"' | |
2ea97746 | 102 | test -n "$EXIM_VARIANT_VERSION" && \ |
420a0d19 CE |
103 | echo EXIM_VARIANT_VERSION='"'"$EXIM_VARIANT_VERSION"'"' |
104 | echo EXIM_COMPILE_NUMBER='"'"$EXIM_COMPILE_NUMBER"'"' | |
2ea97746 CE |
105 | if [ ".${exim_build_date_override:-}" != "." ]; then |
106 | echo EXIM_BUILD_DATE_OVERRIDE='"'"${exim_build_date_override}"'"' | |
107 | fi | |
420a0d19 CE |
108 | ) >version.sh |
109 | ||
110 | if [ ! -f version.h ] | |
111 | then | |
112 | ( echo '/* automatically generated file - see ../scripts/reversion */' | |
113 | echo '#define EXIM_RELEASE_VERSION "'"$EXIM_RELEASE_VERSION"'"' | |
2ea97746 | 114 | test -n "$EXIM_VARIANT_VERSION" && \ |
420a0d19 | 115 | echo '#define EXIM_VARIANT_VERSION "'"$EXIM_VARIANT_VERSION"'"' |
2ea97746 CE |
116 | echo '#ifdef EXIM_VARIANT_VERSION' |
117 | echo '#define EXIM_VERSION_STR EXIM_RELEASE_VERSION "-" EXIM_VARIANT_VERSION' | |
118 | echo '#else' | |
119 | echo '#define EXIM_VERSION_STR EXIM_RELEASE_VERSION' | |
120 | echo '#endif' | |
121 | if [ ".${exim_build_date_override:-}" != "." ]; then | |
122 | echo '#define EXIM_BUILD_DATE_OVERRIDE "'"${exim_build_date_override}"'"' | |
123 | fi | |
420a0d19 CE |
124 | ) >version.h |
125 | fi | |
126 | ||
2ea97746 | 127 | echo ">>> version $EXIM_RELEASE_VERSION $EXIM_VARIANT_VERSION #$EXIM_COMPILE_NUMBER" |
420a0d19 | 128 | echo |