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Code Issues Releases Activity

Tools: Improved git changelog

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This commit is contained in:
Laurent Cozic 2020-09-21 13:01:46 +01:00
parent f3ea476f27
commit abdd7e3256
1 changed files with 45 additions and 24 deletions
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69
Tools/git-changelog.js
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@ -34,6 +34,11 @@ async function gitLog(sinceTag) {
return output;
}
async function gitTags() {
const lines = await execCommand('git tag --sort=committerdate');
return lines.split('\n').map(l => l.trim());
}
function platformFromTag(tagName) {
if (tagName.indexOf('v') === 0) return 'desktop';
if (tagName.indexOf('android') >= 0) return 'android';
@ -43,6 +48,15 @@ function platformFromTag(tagName) {
throw new Error(`Could not determine platform from tag: ${tagName}`);
}
// function tagPrefixFromPlatform(platform) {
// if (platform === 'desktop') return '';
// if (platform === 'android') return 'android-';
// if (platform === 'ios') return 'ios-';
// if (platform === 'clipper') return 'clipper-';
// if (platform === 'cli') return 'cli-';
// throw new Error(`Could not determine tag prefix from platform: ${platform}`);
// }
function filterLogs(logs, platform) {
const output = [];
const revertedLogs = [];
@ -247,36 +261,42 @@ function capitalizeFirstLetter(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
function decreaseTagVersion(tag) {
const s = tag.split('.');
// function decreaseTagVersion(tag) {
// const s = tag.split('.');
let updated = false;
// let updated = false;
for (let tokenIndex = s.length - 1; tokenIndex >= 0; tokenIndex--) {
const token = s[tokenIndex];
const s2 = token.split('-');
let num = Number(s2[0]);
num--;
if (num >= 0) {
updated = true;
s[tokenIndex] = num;
break;
}
}
// for (let tokenIndex = s.length - 1; tokenIndex >= 0; tokenIndex--) {
// const token = s[tokenIndex];
// const s2 = token.split('-');
// let num = Number(s2[0]);
// num--;
// if (num >= 0) {
// updated = true;
// s[tokenIndex] = num;
// break;
// }
// }
if (!updated) throw new Error(`Cannot decrease tag version: ${tag}`);
// if (!updated) throw new Error(`Cannot decrease tag version: ${tag}`);
return s.join('.');
}
// return s.join('.');
// }
// This function finds the first relevant tag starting from the given tag.
// The first "relevant tag" is the one that exists, and from which there are changes.
async function findFirstRelevantTag(baseTag) {
let tag = decreaseTagVersion(baseTag);
while (true) {
async function findFirstRelevantTag(baseTag, platform, allTags) {
let baseTagIndex = allTags.indexOf(baseTag);
if (baseTagIndex < 0) baseTagIndex = allTags.length;
for (let i = baseTagIndex - 1; i >= 0; i--) {
const tag = allTags[i];
if (platformFromTag(tag) !== platform) continue;
try {
const logs = await gitLog(tag);
if (logs.length) return tag;
const filteredLogs = filterLogs(logs, platform);
if (filteredLogs.length) return tag;
} catch (error) {
if (error.message.indexOf('unknown revision') >= 0) {
// We skip the error - it means this particular tag has never been created
@ -284,21 +304,22 @@ async function findFirstRelevantTag(baseTag) {
throw error;
}
}
tag = decreaseTagVersion(tag);
}
throw new Error(`Could not find previous tag for: ${baseTag}`);
}
async function main() {
const argv = require('yargs').argv;
if (!argv._.length) throw new Error('Tag name must be specified. Provide the tag of the new version and git-changelog will walk backward to find the changes to the previous relevant tag.');
const allTags = await gitTags();
const fromTagName = argv._[0];
let toTagName = argv._.length >= 2 ? argv._[1] : '';
const platform = platformFromTag(fromTagName);
if (!toTagName) toTagName = await findFirstRelevantTag(fromTagName);
if (!toTagName) toTagName = await findFirstRelevantTag(fromTagName, platform, allTags);
const logsSinceTags = await gitLog(toTagName);