99 lines
3.1 KiB
TypeScript
99 lines
3.1 KiB
TypeScript
import { dirname } from "path";
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import { fileURLToPath } from "url"
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import { run } from "./run.js";
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const __filename = fileURLToPath(import.meta.url)
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const __dirname = dirname(__filename)
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// Returns the most recent git commit hash for a given filename
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export async function getGitTag(filename: string): Promise<null | string> {
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const result = await run("git", [ "log", "-n", "1", "--", filename ], __dirname);
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if (!result.ok) { throw new Error(`git log error`); }
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let log = result.stdout.trim();
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if (!log) { return null; }
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const hashMatch = log.match(/^commit\s+([0-9a-f]{40})\n/i);
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if (!hashMatch) { return null; }
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return hashMatch[1];
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}
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export async function getModifiedTime(filename: string): Promise<null | number> {
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const result = await run("git", [ "log", "-n", "1", "--", filename ], __dirname);
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if (!result.ok) { throw new Error(`git log error`); }
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let log = result.stdout.trim();
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if (!log) { return null; }
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for (let line of log.split("\n")) {
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line = line.trim();
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if (!line) { break; }
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const match = line.match(/^date:\s+(.*)$/i);
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if (match) {
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return (new Date(match[1].trim())).getTime();;
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}
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}
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return null;
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}
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export interface GitLog {
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commit: string;
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author: string;
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date: string;
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body: string;
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}
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export async function getLogs(files?: null | Array<string>, range?: null | { tag0: string, tag1: string }, limit?: null | number): Promise<Array<GitLog>> {
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const args = [ "log", "-n", String((limit != null) ? limit: 100) ];
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if (range) {
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args.push(`${ range.tag0 }..${ range.tag1 }`);
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}
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if (files) {
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args.push("--");
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files.forEach((f) => args.push(f));
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}
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const exec = await run("git", args);
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if (!exec.ok) { throw new Error(`git log error`); }
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const log = exec.stdout.trim();
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if (!log) { return [ ]; }
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const results: Array<GitLog> = [ { commit: "", author: "", date: "", body: "" } ];
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for (const line of log.split("\n")) {
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const hashMatch = line.match(/^commit\s+([0-9a-f]{40})/i);
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if (hashMatch) {
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results.push({ commit: hashMatch[1], author: "", date: "", body: "" });
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} else {
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if (line.startsWith("Author:")) {
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results[results.length - 1].author = line.substring(7).trim();
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} else if (line.startsWith("Date:")) {
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results[results.length - 1].date = line.substring(5).trim();
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} else {
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results[results.length - 1].body = (results[results.length - 1].body + " " + line).trim();
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}
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}
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}
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// Nix the bootstrap entry
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results.shift();
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return results;
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}
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export async function getDiff(filename: string, tag0: string, tag1: string): Promise<string> {
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const result = await run("git", [ "diff", `${ tag0 }..${ tag1 }`, "--", filename ]);
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if (!result.ok) { throw new Error(`git log error`); }
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return result.stdout.trim();
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}
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export async function getTags(): Promise<Array<string>> {
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const result = await run("git", [ "tag" ]);
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if (!result.ok) { throw new Error(`git log error`); }
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return result.stdout.trim().split("\n");
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}
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