add dockerized deploy script + post-receive hook for push-to-deploy

1 files changed, 44 insertions, 0 deletions

diff --git a/hooks/post-receive b/hooks/post-receive
new file mode 100755
index 0000000..378e777
--- /dev/null
+++ b/hooks/post-receive
@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+# post-receive hook for meru's homepage.git bare repo.
+# Deploys jayrup.me on every push to main, using the pushed deploy-docker.sh.
+#
+# Install on meru (one-time):
+#   cp hooks/post-receive ~/projects/homepage.git/hooks/post-receive
+#   chmod +x ~/projects/homepage.git/hooks/post-receive
+# Also authorize meru's SSH key on nandi (jayrup@jayrup.me ~/.ssh/authorized_keys).
+#
+# Log: /tmp/homepage-deploy.log — also echoed to the pusher (tee).
+set -uo pipefail
+
+# Serialize concurrent pushes (flock from util-linux)
+exec 9>/tmp/homepage-deploy.lock
+flock 9
+
+LOG=/tmp/homepage-deploy.log
+exec > >(tee -a "$LOG") 2>&1
+echo "=== post-receive $(date -u +%Y-%m-%dT%H:%M:%SZ) ==="
+
+BARE_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+BUILD_DIR="/tmp/homepage-build"
+rm -rf "$BUILD_DIR"
+mkdir -p "$BUILD_DIR"
+
+DEPLOYED=0
+while read oldrev newrev ref; do
+    case "$ref" in
+        refs/heads/main)
+            OLD_SHA="$(git --git-dir="$BARE_DIR" rev-parse --short "$oldrev")"
+            NEW_SHA="$(git --git-dir="$BARE_DIR" rev-parse --short "$newrev")"
+            echo ">> push to main: $OLD_SHA..$NEW_SHA"
+            # Snapshot the pushed tree (no .git, exact commit)
+            git --git-dir="$BARE_DIR" archive "$newrev" | tar -x -C "$BUILD_DIR"
+            bash "$BUILD_DIR/deploy-docker.sh" "$BUILD_DIR" "$NEW_SHA"
+            DEPLOYED=1
+            ;;
+        *)
+            echo ">> skipped $ref (only refs/heads/main deploys)"
+            ;;
+    esac
+done
+
+[ "$DEPLOYED" -eq 1 ] && echo "=== hook done OK ===" || echo "=== nothing deployed ==="