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_index.js
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_index.js
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'use strict';
var path = require('path');
var join = path.join;
// load global config
var yaml = require('node-yaml-config');
var CONFIG = yaml.load(join(__dirname, '../config/base.yaml'));
global.CONFIG = CONFIG;
var registry = CONFIG.npmSyncRegistry || 'registry.npmjs.org';
var hook = require('../lib/hook');
var request = require('co-request');
var semver = require('semver');
var co = require('co');
var log = require('spm-log');
var format = require('util').format;
var extend = require('extend');
var thunkify = require('thunkify');
var crypto = require('crypto');
var clientTar = require('spm-client').tar;
var moment = require('moment');
var Project = require('../models/project');
var Package = require('../models/package');
var tar = require('tar');
var download = thunkify(_download);
var untar = thunkify(_untar);
var createTar = thunkify(_createTar);
var readFile = require('fs').readFileSync;
// 有些 pkg 是纯粹的 node 包,不迁移
var BLACK_PKGS = [
'envify',
'jsdom'
];
module.exports = function(id, count, owner, callback) {
co(function *() {
if (id.indexOf('@') > -1) {
id = id.split('@');
yield syncPackage(id[0], id[1], owner);
} else {
yield syncPackages(id, count, owner);
}
}).then(function() {
callback();
}, function(err) {
log.error('error', err);
console.error(err.stack);
callback(err);
});
};
function *syncPackages(name, count, owner) {
var url = 'http://' + registry + '/' + name;
log.info('npm request', url);
var result = yield request(url);
if (result.statusCode === 404) {
throw Error(format('pkg %s not found on npm', name))
}
var pkg = JSON.parse(result.body);
var versions = Object.keys(pkg.versions);
log.info('versions', versions.join(', '));
var project = new Project({name:name});
versions = versions.filter(function(v) {
return /^\d+\.\d+\.\d+$/.test(v);
});
versions = versions.sort(function(a, b) {
return moment(pkg.time[b]) - moment(pkg.time[a]);
});
if (project && project.packages) {
var newVersions = [];
for (var j = 0; j < versions.length; j++) {
var v = versions[j];
if (project.packages[v]) {
break;
} else {
newVersions.push(v);
}
}
versions = newVersions;
}
versions = versions.slice(0, count);
versions = versions.sort(function(a, b) {
return semver.compare(a, b);
});
log.info('versions filtered', versions.join(', '));
console.log();
for (var i=0; i<versions.length; i++) {
try {
yield syncPackage(name, versions[i], owner);
} catch(e) {
log.error('skip', '%s@%s, %s', name, versions[i], e);
console.log();
}
}
log.info('done');
}
function *syncPackage(name, version, owner) {
log.info('start sync', '%s@%s', name, version);
// 验证当前 pkg 是否可被同步
if (!testPkg(name, version)) {
throw Error(format('pkg %s@%s can not be sync', name, version));
}
// 获取依赖包
var pkgs = yield getPkgs(name, version);
log.info('pkgs', Object.keys(pkgs));
// 过滤依赖包
pkgs = filterPkgs(pkgs);
log.info('pkgs filtered', Object.keys(pkgs));
// TODO: 并发下载,顺序 publish (因为下载容易出错)
// 执行
// TODO: 包的下载用队列和多线程
for (var k in pkgs) {
yield syncPkg(pkgs[k], owner);
}
log.info('end sync', '%s@%s', name, version);
console.log();
}
function *syncPkg(pkg, owner) {
// 下载 tar 包
if (!pkg.dist.tarball) {
throw Error('tarball not found in pkg %s@%s', pkg.name, pkg.version);
}
var filename = pkg.dist.tarball.replace(/(:|\/)/g, '_');
var file = join(process.env.TMPDIR || '/tmp/', +new Date() + '_' + filename);
yield download(pkg.dist.tarball, file);
// 解压 tar 包
yield untar(file, file);
// 修改文件
pkg = updatePackageJSON(join(file, 'package', 'package.json'));
// 压缩成 tar 包
var target = yield createTar(pkg, join(file, 'package'));
log.info('tar', target);
// 发布
pkg.tag = 'stable';
pkg.readme = getReadme(join(file, 'package'));
pkg.dependencies = getDependencies(pkg);
var project = new Project(pkg);
var pack = new Package(pkg);
if (!project['created_at']) {
// 更新 owners 信息
pkg.owners = [owner];
project.update(pkg);
hook.emit('create:project', project, owner);
}
var tarfile = readFile(target);
pack.md5 = crypto.createHash('md5').update(tarfile).digest('hex');
pack.saveTarfile(tarfile);
pack.publisher = owner;
pack.save();
project.update(pack);
project.sync_from_npm = true;
project.save();
hook.emit('update:package', pack);
}
function getDependencies(pkg) {
var deps = pkg.spm.dependencies || {};
return Object.keys(deps).map(function(key) {
return key + '@' + deps[key];
});
}
function getReadme(dir) {
var readmeFile = join(dir, 'README.md');
return require('fs').existsSync(readmeFile) ? require('fs').readFileSync(readmeFile).toString(): '';
}
function _createTar(pkg, cwd, callback) {
var tarfile = join(process.env.TMPDIR || '/tmp/', format('%s-%s.tar.gz', pkg.name, pkg.version));
clientTar.create(cwd, tarfile, function(err, target) {
if (err) {
log.error('tar error %s', err.stack);
}
callback(err, target);
});
}
function updatePackageJSON(file) {
log.info('update package', file);
var pkg = JSON.parse(require('fs').readFileSync(file, 'utf-8'));
pkg.spm = {};
if (pkg.main) pkg.spm.main = pkg.main;
// 合并 peerDependencies 到 dependencies
if (pkg.peerDependencies) {
for (var k in pkg.peerDependencies) {
pkg.dependencies = pkg.dependencies || {};
pkg.dependencies[k] = pkg.peerDependencies[k];
}
}
if (pkg.dependencies) {
for (var k in pkg.dependencies) {
if (BLACK_PKGS.indexOf(k) === -1) {
if (!pkg.spm.dependencies) {
pkg.spm.dependencies = {};
}
pkg.spm.dependencies[k] = pkg.dependencies[k];
}
}
}
require('fs').writeFileSync(file, JSON.stringify(pkg, null, 2));
return pkg;
}
function _download(url, file, callback) {
log.info('download', url);
// TODO: 验证 md5 值,优先级不高
require('request')(url)
.pipe(require('fs').createWriteStream(file))
.on('error', function(err) {
throw Error(err);
})
.on('finish', function() {
callback();
});
}
function _untar(file, dest, callback) {
log.info('untar', file);
require('fs').createReadStream(file)
.pipe(require('zlib').createGunzip())
.pipe(tar.Extract({path: dest}))
.on('error', function(err) {
throw Error(err);
})
.on('finish', callback);
}
function filterPkgs(pkgs) {
var ret = {};
for (var k in pkgs) {
if (testPkg(pkgs[k].name, pkgs[k].version)) {
ret[k] = pkgs[k];
}
}
return ret;
}
function semverPkgExist(name, version) {
var project = new Project({name:name});
if (!project.packages) return;
var versions = Object.keys(project.packages);
if (!versions.length) return;
return semver.maxSatisfying(versions, version);
}
function testPkg(name, version) {
var project = new Project({name:name});
var projectExists = !!project.packages;
var pkgExists = projectExists && project.packages[version];
// 当前版本已存在,无需再同步
if (pkgExists) {
log.error('testPkg', format('pkg %s@%s is exist on server, do not need to sync again', name, version))
return false;
}
if (!projectExists || (projectExists && project.sync_from_npm)) {
return true;
} else {
// 没有标记 sync_from_npm 的,不能被同步
if (!project.sync_from_npm) {
throw Error(format('pkg %s is published by other user, if you need this pkg to be synced from npm, contact sorrycc#gmail.com', name));
}
// 从外部源同步回来的,不能二次同步
if (project.sync_from_remote) {
throw Error(format('pkg %s is sync from remote, can not do sync again', name));
}
return false;
}
}
// TODO: 返回数组,然后倒序排列
function *getPkgs(name, version) {
var pkgs = {};
var pkg = yield getPkg(name, version);
// 补充 .js 后缀,spm 现在的逻辑不支持自动补充 .js 后缀
if (pkg.main && path.extname(pkg.main) === '') {
pkg.main = pkg.main + '.js';
}
pkgs[pkg.name + '@' + pkg.version] = pkg;
// 合并 peerDependencies 到 dependencies
if (pkg.peerDependencies) {
for (var k in pkg.peerDependencies) {
pkg.dependencies = pkg.dependencies || {};
pkg.dependencies[k] = pkg.peerDependencies[k];
}
}
if (pkg.dependencies) {
for (var n in pkg.dependencies) {
if (BLACK_PKGS.indexOf(n) > -1) {
log.warn('depencencies', 'have dependencies %s in BLACK_PKGS', n);
continue;
}
var v = pkg.dependencies[n];
//v = v.replace(/^([^\d]+)/, '');
// 如果本地存在,则不添加到依赖项中
if (semverPkgExist(n, v)) {
continue;
}
if (!/^\d+\.\d+\.\d+$/.test(v)) {
//throw Error('pkg version `' + v + '` of '+n+' is invalid');
v = yield getVersion(n, v);
}
// TODO: 这里要用 semver 检查是否已存在于 pkgs 中,否则会出现死循环
var depPkgs = yield getPkgs(n, v);
extend(pkgs, depPkgs);
}
}
return pkgs;
}
function *getVersion(name, range) {
var url = 'http://' + registry + '/' + name;
log.info('npm request', url);
var result = yield request(url);
if (result.statusCode === 404) {
throw Error(format('pkg %s not found on npm', name))
}
var data = JSON.parse(result.body);
var versions = Object.keys(data.versions);
var version = semver.maxSatisfying(versions, range);
if (!version) {
throw Error('pkg version `' + range + '` of ' + name + ' is invalid');
}
return version;
}
var pkgCache = {};
function *getPkg(name, version) {
var id = name + '@' + version;
if (!pkgCache[id]) {
var url = 'http://' + registry + '/' + name + '/' + version;
log.info('npm request', url);
var result = yield request(url);
if (result.statusCode === 404) {
throw Error(format('pkg %s@%s not found on npm', name, version))
}
var pkg = JSON.parse(result.body);
pkgCache[id] = pkgCache[name+'@'+pkg.version] = pkg;
}
return pkgCache[id];
}