Apply runtime shebanging to POSIX shell

1 files changed, 28 insertions, 0 deletions

diff --git a/bin/gscr.sh b/bin/gscr.sh
new file mode 100644
index 00000000..2fbee05a
--- /dev/null
+++ b/bin/gscr.sh
@@ -0,0 +1,28 @@
+# Scrub and pack Git repositories
+
+# Iterate through given directories; default to the current one
+for arg in "${@:-.}" ; do (
+
+    # Note the "exit" calls here in lieu of "continue" are deliberate; we're in
+    # a subshell, so leaving it will continue the loop.
+
+    # Enter either bare repository or .git subdir
+    case $arg in
+        *.git)
+            cd -- "$arg" || exit
+            ;;
+        *)
+            cd -- "$arg"/.git || exit
+            ;;
+    esac
+
+    # Check for bad references or other integrity/sanity problems
+    git fsck || exit
+
+    # Expire dangling references
+    git reflog expire --expire=now || exit
+
+    # Remove dangling references
+    git gc --prune=now --aggressive || exit
+
+) done