Moved the painful-in-ant git/svn revision getti...

Moved the painful-in-ant git/svn revision getting logic into bash
where it's at least somewhat less painful. Made it more flexible for
easy use in more places since we presently have all kinds of revision
figuring logic variations in other build files (sbaz, installer,
scala-documentation, scala-tool-support, etc.) No review.

1 files changed, 29 insertions, 0 deletions

diff --git a/tools/get-scala-revision b/tools/get-scala-revision
new file mode 100755
index 0000000000..0fa020de95
--- /dev/null
+++ b/tools/get-scala-revision
@@ -0,0 +1,29 @@
+#!/bin/sh
+#
+# Usage: get-scala-rev [dir]
+# Figures out current scala revision of an svn checkout or
+# a git-svn mirror (or a git clone.)
+#
+# If no dir is given, current working dir is used.
+
+DIR=""
+if [[ $# -eq 0 ]]; then
+  DIR=`pwd`
+else
+  DIR=$1
+fi
+
+builtin cd $DIR
+
+if [[ -d .svn ]]; then
+  svn info . | grep ^Revision | sed 's/Revision: //'
+elif [[ -d .git ]]; then
+  GIT_PAGER=cat
+  # this grabs more than one line because otherwise if you have local
+  # commits which aren't in git-svn it won't see any revision.
+  git log -10 | grep git-svn-id | head -1 | sed 's/[^@]*@\([0-9]*\).*/\1/'
+else
+  echo "${DIR} doesn't appear to be git or svn dir." >&2
+  echo 0
+  exit 1
+fi