82 lines
2.7 KiB
Markdown
82 lines
2.7 KiB
Markdown
---
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title: 记一个post-receive的配置记录
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description: 个人博客post-receive配置时踩的一点坑
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date: 2025-02-12T20:18:00+08:00
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slug: post-receive
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# image: helena-hertz-wWZzXlDpMog-unsplash.jpg
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categories:
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- 奇技淫巧
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tags: [
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"git",
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"建站",
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"Hugo"
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]
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lastmod: 2025-02-12T20:20:00+08:00
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---
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我在使用自建 Gitea 服务配置博客的自动部署时，最初的`post-receive`配置如下：
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```bash
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#!/usr/bin/env bash
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# AUTO GENERATED BY GITEA, DO NOT MODIFY
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data=$(cat)
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exitcodes=""
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hookname=$(basename $0)
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GIT_DIR=${GIT_DIR:-$(dirname "$0")/..}
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for hook in ${GIT_DIR}/hooks/${hookname}.d/*; do
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test -x "${hook}" && test -f "${hook}" || continue
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echo "${data}" | "${hook}"
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exitcodes="${exitcodes} $?"
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done
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for i in ${exitcodes}; do
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[ ${i} -eq 0 ] || exit ${i}
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done
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WORK_TREE=（保密）
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HUGO_BIN=（保密）
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TMP_DIR=$(mktemp -d)
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git --git-dir="$GIT_DIR" archive master | tar -x -C "$TMP_DIR"
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cd "$TMP_DIR"
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$HUGO_BIN
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rsync -av --delete "$TMP_DIR/public"/ "$WORK_TREE"/
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rm -rf "$TMP_DIR"
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{
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echo "=== Deployment Log ==="
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echo "Timestamp : $(date +"%Y-%m-%d %T %Z")"
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echo "User : $(whoami)"
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echo "Commit Hash: $(git --git-dir="$GIT_DIR" rev-parse HEAD)"
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echo "Work Tree : $WORK_TREE"
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echo "Git Dir : $GIT_DIR"
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echo "Status : Success (Built with Hugo and deployed)"
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echo ""
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} >> "$GIT_DIR/log/git-deploy.log"
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```
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其中1-16行是 Gitea 自动生成的，所以一开始我没管。但是push之后发现，每次都报错：
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```
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remote: mkdir: cannot create directory './log': No such file or directory
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remote: hooks/post-receive: line 50: ./log/git-deploy.log: No such file or directory
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```
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这个目录和文件是存在的，一开始以为是权限问题，但是检查之后发现权限是正确的。我心想真是奇了怪了，会不会是`GIT_DIR`变量赋值有问题呢？但是看起来是正确的。随后试了几次，仍然报一样的错，于是我`echo`了一下`GIT_DIR`，发现是`.`，这就有问题了。
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换言之，`GIT_DIR`变量赋值是一个**相对路径**，而不是绝对路径。尤其是我后面还`cd`了临时目录，会导致脚本目录混乱。于是，我把`GIT_DIR`变量赋值改成了绝对路径：
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```bash
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GIT_DIR=$(realpath ${GIT_DIR:-$(dirname "$0")/..})
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```
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后来再`push`一次，脚本仍然报错，不过这次是：
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```
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remote: fatal: Unable to read current working directory: No such file or directory
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```
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我再查看了一次脚本，发现是`cd`了临时目录，之后把临时目录删了，导致脚本在一个不存在的目录下工作。于是在`rm -rf`之前，先`cd $GIT_DIR/hooks`回到脚本正常工作目录下，再`rm`就没问题了。
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