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index.js
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index.js
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#!/usr/bin/env node
const fs = require("fs");
const path = require("path");
const dirTree = require("directory-tree");
const { spawn, exec, execSync } = require("child_process");
const { rimrafSync } = require("rimraf");
const dayjs = require("dayjs");
const git = require("git-rev-sync");
const noop = () => {};
const WORKING_DIR = path.join(__dirname, ".tmp");
const gitmd = (docdir) => {
const docRoot = path.isAbsolute(docdir)
? docdir
: path.resolve(process.cwd(), docdir);
const helper = {
getTitle: (file) => {
if (!fs.existsSync(file)) return "";
const content = fs.readFileSync(file).toString();
const lines = content.split("\n");
let title = "";
for (let i = 0; i < lines.length; i++) {
if (title) {
break;
} else {
const line = lines[i];
const isTitle = /^#\s/.test(line);
if (isTitle) {
title = line.replace("#", "");
}
}
}
if (!title) {
const segs = file.split(path.sep);
const filename = segs[segs.length - 1].split(".");
title = filename[0];
}
return title;
},
treeToSidebar: (tree, prefix) => {
if (!tree) return tree;
return tree
.filter((item) => !/index\.md$/.test(item.path))
.map((item) => {
const isDir = item.children;
return {
text: isDir
? helper.getTitle(path.join(item.path, "index.md")) || item.name
: helper.getTitle(item.path),
link: isDir
? item.path.replace(prefix, "") + "/index"
: item.path.replace(/\.md$/, "").replace(prefix, ""),
items: isDir ? helper.treeToSidebar(item.children, prefix) : null,
};
});
},
hasGitBin: () => {
try {
execSync("git --version");
return true;
} catch (error) {
return false;
}
},
};
const ignored = /(^|[\/\\])\..|node_modules/;
const dotvitepress = path.join(WORKING_DIR, ".vitepress");
const makeConfig = () => {
const configfile = path.join(docRoot, "gitmd.js");
delete require.cache[configfile];
const config = fs.existsSync(configfile)
? require(configfile)
: {
title: "GitMD Memory",
description: "Git MarkDown Notes",
themeConfig: {
// https://vitepress.dev/reference/default-theme-config
nav: [{ text: "Home", link: "/" }],
sidebar: [],
},
};
const getSidebar = () => {
const tree = dirTree(docRoot, { extensions: /\.md/, exclude: ignored });
const sidebar = helper.treeToSidebar(tree.children, docRoot);
return sidebar || [];
};
config.themeConfig = config.themeConfig || {};
const sidebar = config.themeConfig.sidebar || [];
config.themeConfig.sidebar = [...sidebar, ...getSidebar()].filter(Boolean);
if (!fs.existsSync(dotvitepress)) {
fs.mkdirSync(dotvitepress, { recursive: true });
}
fs.writeFileSync(
path.join(dotvitepress, "config.js"),
`module.exports = ${JSON.stringify(config, null, 2)}`,
"utf-8"
);
};
const gitEnv = {
gitDir: fs.existsSync(path.join(docRoot, ".git")),
gitBin: helper.hasGitBin(),
lastSync: 0,
};
const autogit = (onErr = noop) => {
if (!gitEnv.gitDir || !gitEnv.gitBin) {
return;
}
const pre = process.cwd();
try {
process.chdir(docRoot);
execSync("git add .");
const dirty = git.isDirty();
const changed = dirty || git.hasUnstagedChanges();
process.chdir(pre);
if (!changed) return;
} catch (error) {
process.chdir(pre);
onErr({ type: "gitsyncerr", message: error });
return;
}
const now = dayjs().format("YYYY/MM/DD HH:mm:ss");
// 2min
if (+Date.now() - gitEnv.lastSync < 2 * 60 * 1000) {
return;
}
gitEnv.lastSync = +Date.now();
exec(
`git add . && git commit -m 'autosave at ${now}' && git push `,
{
cwd: docRoot,
},
(err) => {
if (err) {
console.log("giterr ", err);
onErr({ type: "git", message: err });
} else {
console.log("自动保存于:" + now);
}
}
);
};
const workhard = (onErr = noop) => {
rimrafSync(WORKING_DIR, {
filter: (x) => !/\.vitepress/.test(x),
});
try {
fs.cpSync(docRoot, WORKING_DIR, {
recursive: true,
filter: (x) => !ignored.test(x),
});
} catch (error) {
onErr({ type: "fscopy", message: error.message });
console.error("copy error", error);
}
makeConfig();
autogit(onErr);
};
return {
server(onErr = noop) {
return require("portfinder")
.getPortPromise()
.then((port) => {
const cli = `npx vitepress dev ${WORKING_DIR} --port=${port}`;
const child = spawn(
cli,
{
shell: true,
stdio: "inherit",
},
(err, std) => {
if (err) {
onErr({ type: "servererr", message: err });
}
console.log(err, std);
}
);
return {
port,
kill: () => {
spawn("kill", [child.pid]);
},
};
});
},
worker(onErr = noop) {
workhard(onErr);
},
};
};
module.exports = gitmd;