simplify timestamp

Author: artcz

.github/workflows/build-deploy.yml

@@ -17,9 +17,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set timestamp for build/deploy
-        run: |
-          TIMESTAMP=$(date +%Y%m%d%H%M%S)
-          echo "TIMESTAMP=${TIMESTAMP}" >> $GITHUB_ENV
+        run: echo "TIMESTAMP=$(date +%Y%m%d%H%M%S)" >> $GITHUB_ENV
 
       - name: Set up pnpm
         uses: pnpm/action-setup@v4

Makefile

@@ -9,8 +9,8 @@ REMOTE_CMD=ssh $(VPS_USER)@$(VPS_HOST)
 
 # Variables for build/deploy
 # ==========================
-export TIMESTAMP := $(shell date +%Y%m%d%H%M%S)
-export GIT_VERSION := $(shell git rev-parse --short HEAD)
+export TIMESTAMP ?= $(shell date +%Y%m%d%H%M%S)
+export GIT_VERSION ?= $(shell git rev-parse --short HEAD)
 
 # Variables for deploy
 # ====================