git-branch-list: Add `clear` command

A new sub-command that clears the entire branch list. This makes it easy
to remove everything when all the branches in the list are stale (e.g.
everything's been merged already).

1 files changed, 36 insertions, 0 deletions

diff --git a/t/100-clear-clears-all-branches-from-list.t b/t/100-clear-clears-all-branches-from-list.t
new file mode 100644
index 0000000..952d68a
--- /dev/null
+++ b/t/100-clear-clears-all-branches-from-list.t
@@ -0,0 +1,36 @@
+#!/usr/bin/env perl -w
+
+use strict;
+
+use Test::More;
+
+use File::Spec;
+
+my $BIN = File::Spec->rel2abs('git-branch-list');
+
+chdir 't-git-repo' or die $!;
+
+system('git branch first');
+ok !$?;
+
+system("$BIN save first");
+ok !$?;
+
+system('git branch second');
+ok !$?;
+
+system("$BIN save second");
+ok !$?;
+
+system("$BIN clear");
+ok !$?;
+
+my $branch_list = qx($BIN);
+is $branch_list, '';
+
+
+# Teardown
+system('git branch -d first second');
+
+
+done_testing;