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helpers.ts
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/
helpers.ts
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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { semver } from "./deps.ts";
export interface GitLogLine {
rev: string;
message: string;
}
export class GitLogOutput {
lines: GitLogLine[];
constructor(lines: GitLogLine[]) {
this.lines = lines;
}
formatForReleaseMarkdown() {
const IGNORED_COMMIT_PREFIX = [
"bench",
"build",
"chore",
"ci",
"cleanup",
"docs",
"refactor",
"test",
];
return this.lines
.filter((l) => {
// don't include version commits
if (/^v?[0-9]+\.[0-9]+\.[0-9]+/.test(l.message)) {
return false;
}
return !IGNORED_COMMIT_PREFIX
.some((prefix) => l.message.startsWith(prefix)) &&
l.message.length > 0;
})
.map((line) => `- ${line.message}`)
.sort()
.join("\n");
}
}
export class GitTags {
#tags: string[];
constructor(tags: string[]) {
this.#tags = tags;
}
/** Gets the tags that are for a version. */
getGitVersionTags() {
const result = [];
for (const name of this.#tags) {
const version = semver.parse(name.replace(/^v/, ""));
if (version != null) {
result.push({
name,
version,
});
}
}
return result;
}
/** Gets if the most recent version tag uses a `v` prefix. */
usesVersionVPrefix() {
const versionTags = this.getGitVersionTags();
versionTags.sort((a, b) => semver.compare(a.version, b.version));
const mostRecentTag = versionTags[versionTags.length - 1];
return mostRecentTag?.name.startsWith("v") ?? false;
}
has(tagName: string) {
return this.#tags.includes(tagName);
}
getTagNameForVersion(version: string) {
version = version.replace(/^v/, "");
return this.usesVersionVPrefix() ? `v${version}` : version;
}
getPreviousVersionTag(version: string) {
const v = semver.parse(version);
if (v == null) {
throw new Error(`Provided version was not a version: ${version}`);
}
let previousVersion;
for (const tagInfo of this.getGitVersionTags()) {
const isGtPrevious = previousVersion == null ||
semver.compare(previousVersion.version, tagInfo.version) < 0;
if (isGtPrevious && semver.compare(tagInfo.version, v) < 0) {
previousVersion = tagInfo;
}
}
return previousVersion?.name;
}
}
export function containsVersion(text: string) {
return /[0-9]+\.[0-9]+\.[0-9]+/.test(text);
}