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Code Issues Releases Activity

Use lock file for sync

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This commit is contained in:
Laurent Cozic 2017-07-17 19:37:59 +00:00
parent 63772629cf
commit 2688ad7caa
3 changed files with 80 additions and 21 deletions
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89
CliClient/app/command-sync.js
View File

@ -4,12 +4,15 @@ import { _ } from 'lib/locale.js';
import { Setting } from 'lib/models/setting.js';
import { BaseItem } from 'lib/models/base-item.js';
import { vorpalUtils } from './vorpal-utils.js';
const locker = require('proper-lockfile');
const fs = require('fs-extra');
class Command extends BaseCommand {
constructor() {
super();
this.syncTarget_ = null;
this.releaseLockFn_ = null;
}
usage() {
@ -27,36 +30,80 @@ class Command extends BaseCommand {
];
}
static lockFile(filePath) {
return new Promise((resolve, reject) => {
locker.lock(filePath, (error, release) => {
if (error) {
reject(error);
return;
}
resolve(release);
});
});
}
static isLocked(filePath) {
return new Promise((resolve, reject) => {
locker.check(filePath, (error, isLocked) => {
if (error) {
reject(error);
return;
}
resolve(isLocked);
});
});
}
async action(args) {
this.syncTarget_ = Setting.value('sync.target');
if (args.options.target) this.syncTarget_ = args.options.target;
this.releaseLockFn_ = null;
let sync = await app().synchronizer(this.syncTarget_);
const lockFilePath = Setting.value('tempDir') + '/synclock';
if (!await fs.pathExists(lockFilePath)) await fs.writeFile(lockFilePath, 'synclock');
let options = {
onProgress: (report) => {
let lines = sync.reportToLines(report);
if (lines.length) vorpalUtils.redraw(lines.join(' '));
},
onMessage: (msg) => {
vorpalUtils.redrawDone();
this.log(msg);
},
randomFailures: args.options['random-failures'] === true,
};
if (await Command.isLocked(lockFilePath)) throw new Error(_('Synchronisation is already in progress.'));
this.log(_('Synchronization target: %s', this.syncTarget_));
this.releaseLockFn_ = await Command.lockFile(lockFilePath);
if (!sync) throw new Error(_('Cannot initialize synchronizer.'));
try {
this.syncTarget_ = Setting.value('sync.target');
if (args.options.target) this.syncTarget_ = args.options.target;
this.log(_('Starting synchronization...'));
let sync = await app().synchronizer(this.syncTarget_);
await sync.start(options);
vorpalUtils.redrawDone();
let options = {
onProgress: (report) => {
let lines = sync.reportToLines(report);
if (lines.length) vorpalUtils.redraw(lines.join(' '));
},
onMessage: (msg) => {
vorpalUtils.redrawDone();
this.log(msg);
},
randomFailures: args.options['random-failures'] === true,
};
await app().refreshCurrentFolder();
this.log(_('Synchronization target: %s', this.syncTarget_));
this.log(_('Done.'));
if (!sync) throw new Error(_('Cannot initialize synchronizer.'));
this.log(_('Starting synchronization...'));
await sync.start(options);
vorpalUtils.redrawDone();
await app().refreshCurrentFolder();
this.log(_('Done.'));
} catch (error) {
this.releaseLockFn_();
this.releaseLockFn_ = null;
throw error;
}
this.releaseLockFn_();
this.releaseLockFn_ = null;
}
async cancel() {

1
CliClient/package.json
View File

@ -25,6 +25,7 @@
"moment-timezone": "^0.5.13",
"node-fetch": "^1.7.1",
"promise": "^7.1.1",
"proper-lockfile": "^2.0.1",
"query-string": "4.3.4",
"sax": "^1.2.2",
"server-destroy": "^1.0.1",

11
CliClient/yarn.lock
View File

@ -1711,6 +1711,13 @@ promise@^7.1.1:
dependencies:
asap "~2.0.3"
proper-lockfile@^2.0.1:
version "2.0.1"
resolved "https://registry.yarnpkg.com/proper-lockfile/-/proper-lockfile-2.0.1.tgz#159fb06193d32003f4b3691dd2ec1a634aa80d1d"
dependencies:
graceful-fs "^4.1.2"
retry "^0.10.0"
pty.js@^0.3.1:
version "0.3.1"
resolved "https://registry.yarnpkg.com/pty.js/-/pty.js-0.3.1.tgz#81f5bed332d6e5e7ab685688d1ba0373410d51b5"
@ -1875,6 +1882,10 @@ restore-cursor@^1.0.1:
exit-hook "^1.0.0"
onetime "^1.0.0"
retry@^0.10.0:
version "0.10.1"
resolved "https://registry.yarnpkg.com/retry/-/retry-0.10.1.tgz#e76388d217992c252750241d3d3956fed98d8ff4"
rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.6.1:
version "2.6.1"
resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.1.tgz#c2338ec643df7a1b7fe5c54fa86f57428a55f33d"