| 1 | #!/bin/sh |
| 2 | # Copyright (c) The Exim Maintainers 1995 - 2018 |
| 3 | |
| 4 | set -e |
| 5 | LC_ALL=C |
| 6 | export LC_ALL |
| 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 | |
| 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="$3" |
| 52 | rm -f version.h |
| 53 | fi |
| 54 | else |
| 55 | echo "Cannot determine the release number" >&2 |
| 56 | exit |
| 57 | fi |
| 58 | |
| 59 | # If you are maintaining a patched version of Exim, you can either |
| 60 | # create your own version.sh as part of your release process, or you |
| 61 | # can modify EXIM_VARIANT_VERSION at this point in this script. |
| 62 | |
| 63 | if test -z "$EXIM_RELEASE_VERSION"; then |
| 64 | echo "$0: Your copy of Exim lacks any version information." >&2 |
| 65 | exit 1 |
| 66 | fi |
| 67 | |
| 68 | EXIM_COMPILE_NUMBER=$(expr "${EXIM_COMPILE_NUMBER:-0}" + 1) |
| 69 | |
| 70 | echo "$EXIM_COMPILE_NUMBER" >cnumber.h |
| 71 | |
| 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}" "$fmt" 2>/dev/null)" |
| 98 | fi |
| 99 | |
| 100 | ( echo '# automatically generated file - see ../scripts/reversion' |
| 101 | echo EXIM_RELEASE_VERSION='"'"$EXIM_RELEASE_VERSION"'"' |
| 102 | test -n "$EXIM_VARIANT_VERSION" && \ |
| 103 | echo EXIM_VARIANT_VERSION='"'"$EXIM_VARIANT_VERSION"'"' |
| 104 | echo EXIM_COMPILE_NUMBER='"'"$EXIM_COMPILE_NUMBER"'"' |
| 105 | if [ ".${exim_build_date_override:-}" != "." ]; then |
| 106 | echo EXIM_BUILD_DATE_OVERRIDE='"'"${exim_build_date_override}"'"' |
| 107 | fi |
| 108 | ) >version.sh |
| 109 | |
| 110 | if [ ! -f version.h ] |
| 111 | then |
| 112 | ( echo '/* automatically generated file - see ../scripts/reversion */' |
| 113 | echo '#define EXIM_RELEASE_VERSION "'"$EXIM_RELEASE_VERSION"'"' |
| 114 | test -n "$EXIM_VARIANT_VERSION" && \ |
| 115 | echo '#define EXIM_VARIANT_VERSION "'"$EXIM_VARIANT_VERSION"'"' |
| 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 |
| 124 | ) >version.h |
| 125 | fi |
| 126 | |
| 127 | #test -t 1 && echo ">>> version $EXIM_RELEASE_VERSION $EXIM_VARIANT_VERSION #$EXIM_COMPILE_NUMBER" |