Only dump heads in head cache

If there is a tag with the same name as a tag, "git rev-parse <name>"
can give the hash of the tag instead of the branch. "git rev-parse
refs/heads/<name>" must be used to make sure we only find branches.

diff --git a/hg-fast-export.sh b/hg-fast-export.sh
index 9c1077c..c052e1b 100755 (executable)
--- a/hg-fast-export.sh
+++ b/hg-fast-export.sh
@@ -131,7 +131,7 @@ cat "$GIT_DIR/$PFX-$SFX_MARKS.old" "$GIT_DIR/$PFX-$SFX_MARKS.tmp" \
 # save SHA1s of current heads for incremental imports
 # and connectivity (plus sanity checking)
 for head in `git branch | sed 's#^..##'` ; do
-  id="`git rev-parse $head`"
+  id="`git rev-parse refs/heads/$head`"
   echo ":$head $id"
 done > "$GIT_DIR/$PFX-$SFX_HEADS"