Finished git lib

app/lib/git.ts

@@ -0,0 +1,68 @@
+import { Readable } from 'stream'
+import { escapeRegex, readFromStream } from './utils'
+import path from 'path'
+import axios from 'axios'
+import { Exception } from '@adonisjs/core/build/standalone'
+
+export default class GithubLib {
+  public static async getRefHeadCommit(remoteurl, ref): Promise<string> {
+    const remote = new URL(remoteurl)
+    remote.pathname = path.join(remote.pathname, '/info/refs')
+    remote.searchParams.set('service', 'git-upload-pack')
+
+    const reader = await this.getReaderFromHTTP(remote)
+
+    const regref = escapeRegex(ref)
+    const lines = await this.parsePktLines(reader, new RegExp(`^([0-9A-Za-z]+) refs\\/${regref}\n`))
+    if (lines.length < 2 || !lines[1]) {
+      throw new Exception("Cannot find this branch")
+    }
+
+    return lines[1]
+  }
+
+  private static async getReaderFromHTTP(url: URL): Promise<Readable> {
+    const response = await axios({
+      method: 'get',
+      url: url.toString(),
+      responseType: 'stream', // Axios will return the response body as a stream.
+    });
+
+    return response.data
+  }
+
+  private static async parsePktLines(reader: Readable, pattern?: RegExp): Promise<(string | null)[]> {
+    const lines = new Array<string | null>()
+
+    while (reader.readable) {
+      const lenraw = await readFromStream(reader, 4) // Read the length of the pkt-line
+      console.log('lenraw', lenraw)
+      if (!lenraw) continue
+
+      const len = parseInt(lenraw.toString('ascii'), 16) // Convert the length to a number
+      console.log('len', len)
+
+      if (len < 4) {
+        lines.push(null) // Push null for flush-pkt
+        continue
+      }
+
+      const lineraw = await readFromStream(reader, len - 4) // Read the pkt-line
+      console.log('lineraw', lineraw)
+      if (!lineraw) continue
+
+      const line = lineraw.toString('ascii')
+      console.log('line', line)
+
+      if (pattern) {
+        const match = pattern.exec(line)
+        if (match) return match
+      }
+
+      lines.push(line)
+    }
+
+    return lines
+  }
+
+}

app/lib/utils.ts

@@ -0,0 +1,43 @@
+import { Readable } from 'stream'
+
+export function escapeRegex(str: string): string {
+  return str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
+}
+
+export async function readFromStream(stream: Readable, size: number): Promise<Buffer | null> {
+  return new Promise((resolve, reject) => {
+    const onReadable = () => {
+      const chunk = stream.read(size);
+      if (chunk !== null) {
+        cleanup();
+        resolve(chunk);
+      }
+    };
+
+    const onEnd = () => {
+      cleanup();
+      resolve(null); // Stream has ended.
+    };
+
+    const onError = (error: Error) => {
+      cleanup();
+      reject(error); // Stream encountered an error.
+    };
+
+    const cleanup = () => {
+      stream.removeListener('readable', onReadable);
+      stream.removeListener('end', onEnd);
+      stream.removeListener('error', onError);
+    };
+
+    // Attempt to read immediately; otherwise, wait for events.
+    const chunk = stream.read(size);
+    if (chunk !== null) {
+      resolve(chunk);
+    } else {
+      stream.on('readable', onReadable);
+      stream.on('end', onEnd);
+      stream.on('error', onError);
+    }
+  });
+}

package.json

@@ -53,7 +53,7 @@
     "@adonisjs/shield": "^7.0.0",
     "@adonisjs/view": "^6.1.0",
     "adm-zip": "^0.5.16",
-    "axios": "^1.6.2",
+    "axios": "^1.7.7",
     "highlight.js": "^11.9.0",
     "luxon": "^3.4.0",
     "markdown-it": "^13.0.2",

yarn.lock

@@ -2721,9 +2721,9 @@ atomic-sleep@^1.0.0:
   resolved "https://registry.npmjs.org/atomic-sleep/-/atomic-sleep-1.0.0.tgz"
   integrity sha512-kNOjDqAh7px0XWNI+4QbzoiR/nTkHAWNud2uvnJquD1/x5a7EQZMJT0AczqK0Qn67oY/TTQ1LbUKajZpp3I9tQ==
 
-axios@^1.6.2:
+axios@^1.7.7:
   version "1.7.7"
-  resolved "https://registry.npmjs.org/axios/-/axios-1.7.7.tgz"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-1.7.7.tgz#2f554296f9892a72ac8d8e4c5b79c14a91d0a47f"
   integrity sha512-S4kL7XrjgBmvdGut0sN3yJxqYzrDOnivkBiN0OFs6hLiUam3UPvswUo0kqGyhqUZGEOytHyumEdXsAkgCOUf3Q==
   dependencies:
     follow-redirects "^1.15.6"