first commit

scripts/check-and-build.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+source /opt/rust-package-builder/scripts/lib.sh
+
+STATE_FILE="$DATA_DIR/state/last_commit"
+
+log "checking repository"
+REMOTE_SHA=$(git ls-remote "$SOURCE_REPO" "refs/heads/$SOURCE_BRANCH" | awk 'NR == 1 {print $1}')
+[[ "$REMOTE_SHA" =~ ^[0-9a-fA-F]{40}$ ]] || fatal "cannot resolve branch $SOURCE_BRANCH from $SOURCE_REPO"
+
+LAST_SHA=""
+[[ -r "$STATE_FILE" ]] && LAST_SHA=$(cat "$STATE_FILE")
+
+if [[ "$REMOTE_SHA" == "$LAST_SHA" ]]; then
+    log "no changes: $REMOTE_SHA"
+    exit 0
+fi
+
+log "new commit detected: $REMOTE_SHA"
+/opt/rust-package-builder/scripts/build-release.sh "$REMOTE_SHA"