Repo created

tools/unix/version.sh

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+#!/usr/bin/env bash
+# Should be used everywhere to generate a consistent version number based
+# on the date of the last commit and a number of commits on that day.
+set -euo pipefail
+
+
+function init {
+  if ! type git >/dev/null 2>&1 || ! git rev-parse --is-inside-work-tree >/dev/null 2>&1 ; then
+    # Either git is not installed on the system or this is not a git work tree.
+    # Likely because the code is built from an archive.
+    # In any case determining commit count, date and hash won't be possible.
+    local COUNT_AND_DATE=( 0 $(date +%Y.%m.%d) )
+    GIT_HASH="00000000"
+  else
+    # Note: other ways to get date use the "when commit was rebased" date.
+    # This approach counts a number of commits each day based on committer's commit date
+    # instead of author's commit date, to avoid conflicts when old PRs are merged, but the
+    # number of a day's commits stays the same.
+    # Force git with TZ variable and local dates to print the UTC date.
+    local COUNT_AND_DATE=( $(TZ=UTC0 git log --max-count=128 --pretty=format:%cd --date=iso-local \
+                                       | cut -d' ' -f 1 | sed 's/-/./g' | sort | uniq -c | tail -1) )
+    GIT_HASH=$(git describe --match="" --always --abbrev=8 --dirty)
+  fi
+
+  DATE="${COUNT_AND_DATE[1]}"
+  COUNT="${COUNT_AND_DATE[0]}"
+}
+
+function ios_version {
+  echo "$DATE"
+}
+
+function ios_build {
+  echo "$COUNT"
+}
+
+function count {
+  echo "$COUNT"
+}
+
+function  android_name {
+  echo "$DATE-$COUNT"
+}
+
+function android_code {
+  # RR_yy_MM_dd_CC
+  # RR - reserved to identify special markets, max value is 21.
+  # yy - year
+  # MM - month
+  # dd - day
+  # CC - the number of commits from the current day
+  # 21_00_00_00_00 is the the greatest value Google Play allows for versionCode.
+  # See https://developer.android.com/studio/publish/versioning for details.
+  local cutYear=${DATE:2}
+  echo "${cutYear//./}$(printf %02d "$COUNT")"
+}
+
+function qt_int_version {
+  # yy_MM_dd
+  # yy - year
+  # MM - month
+  # dd - day
+  local cutYear=${DATE:2}
+  echo "${cutYear//./}"
+}
+
+function qt_version {
+  local OS_NAME=$(uname -s)
+  echo "$DATE-$COUNT-$GIT_HASH-$OS_NAME"
+}
+
+function usage {
+  cat << EOF
+Prints Organic Maps version in specified format.
+Version is the last git commit's date plus a number of commits on that day.
+Usage: $0 <format>
+Where format is one of the following arguments (shows current values):
+  ios_version    $(ios_version)
+  ios_build      $(ios_build)
+  android_name   $(android_name)
+  android_code   $(android_code)
+  qt_version     $(qt_version)
+  qt_int_version $(qt_int_version)
+  count          $(count)
+EOF
+}
+
+init
+
+if [ -z ${1:-} ] || [[ ! $(type -t "$1") == function ]]; then
+  usage
+  exit 1
+else
+  "$1"
+fi