now we can specify a commit range for git-obliterate

Author: spacewander

bin/git-obliterate

@@ -1,4 +1,23 @@
 #!/usr/bin/env bash
-file="$1"
+
+file=""
+range=""
+for i in "$@"
+do
+    # use '--' to seperate file list and rev-list arguments
+    test "$i" == '--' && shift && break
+    file="$file"' '"$i"
+    shift
+done
+test -n "$*" && range="$*"
+
 test -z "$file" && echo "file required." 1>&2 && exit 1
-git filter-branch -f --index-filter "git rm -r --cached '$file' --ignore-unmatch" --prune-empty --tag-name-filter cat -- --all
+if [ -z "$range" ]
+then
+    git filter-branch -f --index-filter "git rm -r --cached ""$file"" --ignore-unmatch" \
+        --prune-empty --tag-name-filter cat -- --all
+else
+    # don't quote $range so that we can forward multiple rev-list arguments
+    git filter-branch -f --index-filter "git rm -r --cached ""$file"" --ignore-unmatch" \
+        --prune-empty --tag-name-filter cat -- $range
+fi