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Cache changelog information on the server for 15 minutes

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This commit is contained in:
Jérémie Astori 2017-12-23 13:37:33 -05:00
parent 9691df67e3
commit 57c24704af
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GPG key ID: B9A4F245CD67BDE8
1 changed files with 23 additions and 11 deletions
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34
src/plugins/changelog.js
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@ -7,12 +7,18 @@ module.exports = {
fetch, fetch,
}; };
const versions = {
current: {
version: `v${pkg.version}`,
},
};
function fetch(callback) { function fetch(callback) {
const changelog = { // Serving information from cache
current: { if (versions.current.changelog) {
version: `v${pkg.version}`, callback(versions);
}, return;
}; }
request.get({ request.get({
uri: "https://api.github.com/repos/thelounge/lounge/releases", uri: "https://api.github.com/repos/thelounge/lounge/releases",
@ -22,8 +28,7 @@ function fetch(callback) {
}, },
}, (error, response, body) => { }, (error, response, body) => {
if (error || response.statusCode !== 200) { if (error || response.statusCode !== 200) {
callback(changelog); callback(versions);
return; return;
} }
@ -36,8 +41,8 @@ function fetch(callback) {
// Find the current release among releases on GitHub // Find the current release among releases on GitHub
for (i = 0; i < body.length; i++) { for (i = 0; i < body.length; i++) {
release = body[i]; release = body[i];
if (release.tag_name === changelog.current.version) { if (release.tag_name === versions.current.version) {
changelog.current.changelog = release.body_html; versions.current.changelog = release.body_html;
prerelease = release.prerelease; prerelease = release.prerelease;
break; break;
@ -51,7 +56,7 @@ function fetch(callback) {
// Find latest release or pre-release if current version is also a pre-release // Find latest release or pre-release if current version is also a pre-release
if (!release.prerelease || release.prerelease === prerelease) { if (!release.prerelease || release.prerelease === prerelease) {
changelog.latest = { versions.latest = {
prerelease: release.prerelease, prerelease: release.prerelease,
version: release.tag_name, version: release.tag_name,
url: release.html_url, url: release.html_url,
@ -62,6 +67,13 @@ function fetch(callback) {
} }
} }
callback(changelog); // Emptying cached information after 15 minutes
setTimeout(() => {
delete versions.current.changelog;
delete versions.latest;
}, 15 * 60 * 1000
);
callback(versions);
}); });
} }