backup_repos.sh: small script to backup my reposHEADmaster

1 files changed, 41 insertions, 0 deletions

diff --git a/backup_repos.sh b/backup_repos.sh
new file mode 100755
index 0000000..e34d1ea
--- /dev/null
+++ b/backup_repos.sh
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+#!/usr/bin/env sh
+
+export GIT_TERMINAL_PROMPT=0
+BASE=/mnt/ssd-data/repos/
+
+pick_branch() {
+  git -C "$1" for-each-ref --format='%(refname:short)' 'refs/remotes/origin/*' \
+    | sed 's#^origin/##' \
+    | grep -E '^(main|master|dev)$' \
+    | head -n1
+}
+
+repos=$(2>1 ssh git.l-3.space | awk '/tslil\// {print $2}')
+
+echo Found $repos
+printf "\n\n"
+
+for repo in $repos; do
+  REMOTE="ssh://git.l-3.space/$repo.git"
+  DIR="$BASE/$repo"
+  echo Looking at "$REMOTE" for "$DIR"
+  if [ -d "$DIR/.git" ]; then
+    echo "Syncing existing repo $DIR from $REMOTE ..."
+    if git -C "$DIR" fetch -q origin \
+      && BRANCH="$(pick_branch "$DIR")" && [ -n "$BRANCH" ] \
+      && git -C "$DIR" reset --hard -q "origin/$BRANCH" \
+      && git -C "$DIR" clean -fdxq; then
+      echo "OK: $DIR synced to remote from $BRANCH."
+    else
+      echo "Sync failed, removing $DIR and re-cloning..."
+      rm -rf "$DIR"
+      git clone -q "$REMOTE" "$DIR"
+      echo "OK: $DIR re-cloned from $REMOTE."
+    fi
+  else
+    echo "No repo at $DIR, cloning..."
+    git clone -q "$REMOTE" "$DIR"
+    echo "OK: $DIR cloned from $REMOTE."
+  fi
+  printf "\n\n"
+done