From e6a246f0408eaa688ac3d81bac6dcdac8f9a12b8 Mon Sep 17 00:00:00 2001
From: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Thu, 27 Dec 2018 20:03:46 +0000
Subject: [PATCH] Chop up contrib/semver/version.sh

---
 contrib/semver/version.sh | 61 +++++++++------------------------------
 1 file changed, 14 insertions(+), 47 deletions(-)

diff --git a/contrib/semver/version.sh b/contrib/semver/version.sh
index 964a3208..37fc524f 100644
--- a/contrib/semver/version.sh
+++ b/contrib/semver/version.sh
@@ -1,63 +1,30 @@
 #!/bin/sh
 
-# Merge commits from this branch are counted
-DEVELOPBRANCH="yggdrasil-network/develop"
-
 # Get the last tag
-TAG=$(git describe --abbrev=0 --tags --match="v[0-9]*\.[0-9]*\.0" 2>/dev/null)
+TAG=$(git describe --abbrev=0 --tags --match="v[0-9]*\.[0-9]*\.[0-9]*" 2>/dev/null)
+test $? != 0 && (echo "unknown"; exit 1)
 
-# Get last merge to master
-MERGE=$(git rev-list $TAG..master --grep "from $DEVELOPBRANCH" 2>/dev/null | head -n 1)
-
-# Get the number of merges since the last merge to master
-PATCH=$(git rev-list $TAG..master --count --merges --grep="from $DEVELOPBRANCH" --first-parent master 2>/dev/null)
-
-# Decide whether we should prepend the version with "v" - the default is that
-# we do because we use it in git tags, but we might not always need it
-PREPEND="v"
-if [ "$1" = "--bare" ]; then
-  PREPEND=""
-fi
-
-# If it fails then there's no last tag - go from the first commit
-if [ $? != 0 ]; then
-  PATCH=$(git rev-list HEAD --count 2>/dev/null)
-
-  # Complain if the git history is not available
-  if [ $? != 0 ]; then
-    printf 'unknown'
-    exit 1
-  fi
-
-  printf '%s0.0.%d' "$PREPEND" "$PATCH"
-  exit 1
-fi
+# Get the current branch
+BRANCH=$(git symbolic-ref -q HEAD --short 2>/dev/null)
+test $? != 0 && BRANCH="master"
 
 # Split out into major, minor and patch numbers
 MAJOR=$(echo $TAG | cut -c 2- | cut -d "." -f 1)
 MINOR=$(echo $TAG | cut -c 2- | cut -d "." -f 2)
-
-# Get the current checked out branch
-BRANCH=$(git rev-parse --abbrev-ref HEAD)
+PATCH=$(echo $TAG | cut -c 2- | cut -d "." -f 3)
 
 # Output in the desired format
-if [ $PATCH = 0 ]; then
-  if [ ! -z $FULL ]; then
-    printf '%s%d.%d.0' "$PREPEND" "$MAJOR" "$MINOR"
-  else
-    printf '%s%d.%d' "$PREPEND" "$MAJOR" "$MINOR"
-  fi
+if [ $((PATCH)) -eq 0 ]; then
+  printf '%s%d.%d' "$PREPEND" "$((MAJOR))" "$((MINOR))"
 else
-  printf '%s%d.%d.%d' "$PREPEND" "$MAJOR" "$MINOR" "$PATCH"
+  printf '%s%d.%d.%d' "$PREPEND" "$((MAJOR))" "$((MINOR))" "$((PATCH))"
 fi
 
-# Get the number of merges on the current branch since the last tag
-TAG=$(git describe --abbrev=0 --tags --match="v[0-9]*\.[0-9]*\.[0-9]*" --first-parent master 2>/dev/null)
-BUILD=$(git rev-list $TAG.. --count)
-
 # Add the build tag on non-master branches
-if [ $BRANCH != "master" ]; then
-  if [ $BUILD != 0 ]; then
-    printf -- "-%04d" "$BUILD"
+if [ "$BRANCH" != "master" ]; then
+  BUILD=$(git rev-list $TAG..HEAD --count)
+
+  if [ $? == 0 ] && [ $((BUILD)) -gt 0 ]; then
+      printf -- "-%04d" "$((BUILD))"
   fi
 fi