Automatic versioning for Travis builds

LinuxAddons/bin/generate_version_header_for_marlin

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+# generate_version_header_for_marlin
+
+DIR=$1 export DIR
+OUTFILE=$2 export OUTFILE
+echo "/* This file is automatically generated by an Arduino hook" >$OUTFILE
+echo " * Do not manually edit it" >>$OUTFILE
+echo " * It does not get committed to the repository" >>$OUTFILE
+echo " */" >>$OUTFILE
+echo "" >>$OUTFILE
+
+echo "#define BUILD_UNIX_DATETIME" `date +%s` >>$OUTFILE
+echo "#define STRING_DISTRIBUTION_DATE" `date '+"%Y-%m-%d %H:%M"'` >>$OUTFILE
+( set +e
+  cd $DIR
+  BRANCH=`git symbolic-ref --short HEAD`
+  if [ "x$BRANCH" == "xHEAD" ] ; then
+    BRANCH=""
+  elif [ "x$BRANCH" == "xDevelopment" ] ; then
+    BRANCH=" dev"
+  else
+    BRANCH=" $BRANCH"
+  fi
+  VERSION=`git describe --tags --first-parent 2>/dev/null` 
+  if [ "x$VERSION" != "x" ] ; then
+    echo "#define BUILD_VERSION \"$VERSION\"" | sed "s/-/$BRANCH-/" >>$OUTFILE
+  fi
+  URL=`git config --local --get remote.origin.url | sed "sx.*github.com:xhttps://github.com/x" | sed "sx\.gitx/x"`
+  if [ "x$URL" != "x" ] ; then
+    echo "#define SOURCE_CODE_URL  \""$URL"\"" >>$OUTFILE
+    echo "// Deprecated URL definition" >>$OUTFILE
+    echo "#define FIRMWARE_URL  \""$URL"\"" >>$OUTFILE
+  fi
+  
+)