builder-support/gen-version

   1 #!/bin/sh
   2 if [ ! -z "${BUILDER_VERSION}" ]; then
   3   printf ${BUILDER_VERSION}
   4   exit 0
   5 fi
   6
   7 VERSION="unknown"
   8
   9 DIRTY=""
  10 git status | grep -q clean || DIRTY='.dirty'
  11
  12 # Special environment variable to signal that we are building a release, as this
  13 # has consequenses for the version number.
  14 if [ "${IS_RELEASE}" = "YES" ]; then
  15   TAG="$(git describe --tags --exact-match 2> /dev/null | cut -d- -f 2-)"
  16   if [ -n "${TAG}" ]; then
  17     # We're on a tag
  18     echo "${TAG}${DIRTY}" > .version
  19     printf "${TAG}${DIRTY}"
  20     exit 0
  21   fi
  22   echo 'This is not a tag, either tag this commit or do not set $IS_RELEASE' >&2
  23   exit 1
  24 fi
  25
  26 #
  27 # Generate the version number based on the branch
  28 #
  29 if [ ! -z "$(git rev-parse --abbrev-ref HEAD 2> /dev/null)" ]; then
  30   if [ -n "${BUILDER_MODULES}" ]; then
  31     match=${BUILDER_MODULES}
  32     [ $match = "authoritative" ] && match='auth'
  33     [ $match = "recursor" ] && match='rec'
  34     GIT_VERSION="$(git describe --match=${match}-* --tags | cut -d- -f2-)"
  35     if [ $(echo ${GIT_VERSION} | awk -F"-" '{print NF-1}') = '3' ]; then
  36       # A prerelease happened before
  37       LAST_TAG="$(echo ${GIT_VERSION} | cut -d- -f1-2)"
  38       COMMITS_SINCE_TAG="$(echo ${GIT_VERSION} | cut -d- -f3)"
  39       GIT_HASH="$(echo ${GIT_VERSION} | cut -d- -f4)"
  40     elif [ $(echo ${GIT_VERSION} | awk -F"-" '{print NF-1}') = '1' ]; then
  41       # Exactly on a pre-release
  42       LAST_TAG="$(echo ${GIT_VERSION} | cut -d- -f1-2)"
  43     else
  44       LAST_TAG="$(echo ${GIT_VERSION} | cut -d- -f1)"
  45       COMMITS_SINCE_TAG="$(echo ${GIT_VERSION} | cut -d- -f2)"
  46       GIT_HASH="$(echo ${GIT_VERSION} | cut -d- -f3)"
  47     fi
  48   fi
  49
  50   if [ -z "${GIT_VERSION}" ]; then
  51     # BUILDER_SUPPORT has more than one product listed, fall back to the 0.0.0 logic
  52
  53     # We used 0.0.XXXXgHASH for master in the previous incarnation of our build pipeline.
  54     # This now becomes 0.0.XXXX.0.gHASH, as 0.0.0.XXXX.gHASH (which is more correct)
  55     # would break upgrades for those running master
  56     # This _should_ be ok for forever is we stick to X.Y.Z for version numbers
  57     LAST_TAG=0.0
  58     COMMITS_SINCE_TAG="$(git rev-list --count 12c868770afc20b6cc0da439d881105151d557dd..HEAD 2> /dev/null).0"
  59     [ "${COMMITS_SINCE_TAG}" = ".0" ] && COMMITS_SINCE_TAG=0.0
  60     GIT_HASH="g$(git rev-parse HEAD | cut -c1-10 2> /dev/null)"
  61   fi
  62
  63   BRANCH=".$(git rev-parse --abbrev-ref HEAD | perl -p -e 's/[^[:alnum:]]//g;')"
  64
  65   TAG="$(git describe --tags --exact-match 2> /dev/null | cut -d- -f 2-)"
  66   if [ -n "${TAG}" ]; then # We're exactly on a tag
  67     COMMITS_SINCE_TAG="0"
  68     GIT_HASH="g$(git show --no-patch --format=format:%h HEAD 2>/dev/null)"
  69     if [ -z "$GIT_HASH" ]; then
  70       GIT_HASH="g$(git show --format=format:%h HEAD | head -n1)"
  71     fi
  72   fi
  73
  74   VERSION="${LAST_TAG}.${COMMITS_SINCE_TAG}${BRANCH}.${GIT_HASH}${DIRTY}"
  75 fi
  76
  77 printf $VERSION