From de48aad638e4ec5afccde5d2d2d3c9ecb7d959eb Mon Sep 17 00:00:00 2001
From: Merlin Mathesius <mmathesi@redhat.com>
Date: Jun 22 2020 15:11:43 +0000
Subject: Add shell script that can be used to remove old branches from the

merged configuration repos

Signed-off-by: Merlin Mathesius <mmathesi@redhat.com>

---

diff --git a/contrib/scripts/delete-old-branches.sh b/contrib/scripts/delete-old-branches.sh
new file mode 100755
index 0000000..e5e7de4
--- /dev/null
+++ b/contrib/scripts/delete-old-branches.sh
@@ -0,0 +1,81 @@
+#!/bin/bash
+
+usage() {
+    cat >&2 <<-EOF
+Usage: $0 [ --dry-run ] age repo [ id_file ]
+
+Removes branches older than 'age' seconds from git repo 'repo'.
+
+If optional 'id_file' is specified, it is used as the private key file
+for authenticating to git.
+EOF
+    exit 1
+}
+
+dry_run=0
+
+while (( $# >= 1 ))
+do
+    case "$1" in
+    --dry-run )
+        dry_run=1
+        shift
+        ;;
+    -* )
+        echo "Unknown option: $1" >&2
+        usage
+        ;;
+    * )
+        break
+        ;;
+    esac
+done
+
+if (( $# < 2 || $# > 3 ))
+then
+    usage
+fi
+
+prune_age="$1"
+repo="$2"
+id_file="${3:-}"
+
+echo "Removing branches older than $prune_age seconds from repo $repo"
+
+if [ -n "$id_file" ]
+then
+    export GIT_SSH_COMMAND="ssh -o IdentitiesOnly=yes -i $id_file"
+fi
+
+e_now=$EPOCHSECONDS
+
+workdir=`mktemp -d`
+git clone "$repo" "$workdir"
+pushd "$workdir" >/dev/null
+
+branches=$(git branch -r --no-merged)
+for branch in $branches
+do
+    br_name="${branch#origin/}"
+    if [ "$br_name" == master ]
+    then
+         next
+    fi
+    # get epoch time of last commit in branch
+    e_last=$(git log -n 1 --format="%ct" $branch)
+    age=$(( e_now - e_last ))
+    echo "Last commit to branch $branch was $age seconds ago"
+    if (( $age > $prune_age ))
+    then
+        echo "DELETING BRANCH $branch"
+        if (( $dry_run ))
+        then
+            echo DRY RUN NOT RUNNING git push origin --delete $br_name
+        else
+            git push origin --delete $br_name
+        fi
+    fi
+done
+
+popd >/dev/null
+rm -rf "$workdir"