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wiki/libs/git.js

259 lines
5.9 KiB

"use strict";
var Git = require("git-wrapper2-promise"),
Promise = require('bluebird'),
path = require('path'),
os = require('os'),
fs = Promise.promisifyAll(require("fs")),
moment = require('moment'),
_ = require('lodash'),
URL = require('url');
/**
* Git Model
*/
module.exports = {
_git: null,
_url: '',
_repo: {
path: '',
branch: 'master',
exists: false
},
_signature: {
name: 'Wiki',
email: 'user@example.com'
},
_opts: {
clone: {},
push: {}
},
onReady: null,
/**
* Initialize Git model
*
* @param {Object} appconfig The application config
* @return {Object} Git model instance
*/
init(appconfig) {
let self = this;
//-> Build repository path
if(_.isEmpty(appconfig.paths.repo)) {
self._repo.path = path.join(ROOTPATH, 'repo');
} else {
self._repo.path = appconfig.paths.repo;
}
//-> Initialize repository
self.onReady = self._initRepo(appconfig);
// Define signature
self._signature.name = appconfig.git.signature.name || 'Wiki';
self._signature.email = appconfig.git.signature.email || 'user@example.com';
return self;
},
/**
* Initialize Git repository
*
* @param {Object} appconfig The application config
* @return {Object} Promise
*/
_initRepo(appconfig) {
let self = this;
winston.info('[' + PROCNAME + '][GIT] Checking Git repository...');
//-> Check if path is accessible
return fs.mkdirAsync(self._repo.path).catch((err) => {
if(err.code !== 'EEXIST') {
winston.error('[' + PROCNAME + '][GIT] Invalid Git repository path or missing permissions.');
}
}).then(() => {
self._git = new Git({ 'git-dir': self._repo.path });
//-> Check if path already contains a git working folder
return self._git.isRepo().then((isRepo) => {
self._repo.exists = isRepo;
return (!isRepo) ? self._git.exec('init') : true;
}).catch((err) => {
self._repo.exists = false;
});
}).then(() => {
// Initialize remote
let urlObj = URL.parse(appconfig.git.url);
urlObj.auth = appconfig.git.auth.username + ((appconfig.git.auth.type !== 'ssh') ? ':' + appconfig.git.auth.password : '');
self._url = URL.format(urlObj);
return self._git.exec('remote', 'show').then((cProc) => {
let out = cProc.stdout.toString();
if(_.includes(out, 'origin')) {
return true;
} else {
return Promise.join(
self._git.exec('config', ['--local', 'user.name', self._signature.name]),
self._git.exec('config', ['--local', 'user.email', self._signature.email])
).then(() => {
return self._git.exec('remote', ['add', 'origin', self._url]);
})
}
});
}).catch((err) => {
winston.error('[' + PROCNAME + '][GIT] Git remote error!');
throw err;
}).then(() => {
winston.info('[' + PROCNAME + '][GIT] Git repository is OK.');
return true;
});
},
/**
* Gets the repo path.
*
* @return {String} The repo path.
*/
getRepoPath() {
return this._repo.path || path.join(ROOTPATH, 'repo');
},
/**
* Sync with the remote repository
*
* @return {Promise} Resolve on sync success
*/
resync() {
let self = this;
// Fetch
winston.info('[' + PROCNAME + '][GIT] Performing pull from remote repository...');
return self._git.pull('origin', self._repo.branch).then((cProc) => {
winston.info('[' + PROCNAME + '][GIT] Pull completed.');
})
.catch((err) => {
winston.error('[' + PROCNAME + '][GIT] Unable to fetch from git origin!');
throw err;
})
.then(() => {
// Check for changes
return self._git.exec('log', 'origin/' + self._repo.branch + '..HEAD').then((cProc) => {
let out = cProc.stdout.toString();
if(_.includes(out, 'commit')) {
winston.info('[' + PROCNAME + '][GIT] Performing push to remote repository...');
return self._git.push('origin', self._repo.branch).then(() => {
return winston.info('[' + PROCNAME + '][GIT] Push completed.');
});
} else {
winston.info('[' + PROCNAME + '][GIT] Push skipped. Repository is already in sync.');
}
return true;
});
})
.catch((err) => {
winston.error('[' + PROCNAME + '][GIT] Unable to push changes to remote!');
throw err;
});
},
/**
* Commits a document.
*
* @param {String} entryPath The entry path
* @return {Promise} Resolve on commit success
*/
commitDocument(entryPath) {
let self = this;
let gitFilePath = entryPath + '.md';
let commitMsg = '';
return self._git.exec('ls-files', gitFilePath).then((cProc) => {
let out = cProc.stdout.toString();
return _.includes(out, gitFilePath);
}).then((isTracked) => {
commitMsg = (isTracked) ? 'Updated ' + gitFilePath : 'Added ' + gitFilePath;
return self._git.add(gitFilePath);
}).then(() => {
return self._git.commit(commitMsg).catch((err) => {
if(_.includes(err.stdout, 'nothing to commit')) { return true; }
});
});
},
/**
* Move a document.
*
* @param {String} entryPath The current entry path
* @param {String} newEntryPath The new entry path
* @return {Promise<Boolean>} Resolve on success
*/
moveDocument(entryPath, newEntryPath) {
let self = this;
let gitFilePath = entryPath + '.md';
let gitNewFilePath = newEntryPath + '.md';
return self._git.exec('mv', [gitFilePath, gitNewFilePath]).then((cProc) => {
let out = cProc.stdout.toString();
if(_.includes(out, 'fatal')) {
let errorMsg = _.capitalize(_.head(_.split(_.replace(out, 'fatal: ', ''), ',')));
throw new Error(errorMsg);
}
return true;
})
},
/**
* Commits uploads changes.
*
* @param {String} msg The commit message
* @return {Promise} Resolve on commit success
*/
commitUploads(msg) {
let self = this;
msg = msg || "Uploads repository sync";
return self._git.add('uploads').then(() => {
return self._git.commit(msg).catch((err) => {
if(_.includes(err.stdout, 'nothing to commit')) { return true; }
});
});
}
};