feat: wip for pre-receive hooks implementation

Author: fabiovincenzi

src/proxy/chain.js

@@ -1,6 +1,7 @@
 const proc = require('./processors');
 
 const pushActionChain = [
+  proc.push.preReceive,
   proc.push.parsePush,
   proc.push.checkRepoInAuthorisedList,
   proc.push.checkCommitMessages,

src/proxy/processors/push-action/index.js

@@ -1,4 +1,5 @@
 exports.parsePush = require('./parsePush').exec;
+exports.preReceive = require('./preReceive').exec;
 exports.checkRepoInAuthorisedList = require('./checkRepoInAuthorisedList').exec;
 exports.audit = require('./audit').exec;
 exports.pullRemote = require('./pullRemote').exec;

src/proxy/processors/push-action/preReceive.js

@@ -0,0 +1,55 @@
+const fs = require('fs');
+const path = require('path');
+const Step = require('../../actions').Step;
+const { spawnSync } = require('child_process');
+
+const sanitizeInput = (req, action) => {
+  return `${action.oldCommit} ${action.newCommit} ${action.ref}\n`;
+};
+
+const exec = async (req, action, hookFilePath = './hooks/pre-receive.sh') => {
+  const step = new Step('executeExternalPreReceiveHook');
+
+  try {
+    const resolvedPath = path.resolve(hookFilePath);
+
+    if (!fs.existsSync(resolvedPath)) {
+      throw new Error(`Hook file not found: ${resolvedPath}`);
+    }
+
+    console.log(`Executing pre-receive hook from: ${resolvedPath}`);
+
+    const sanitizedInput = sanitizeInput(req, action);
+
+    const hookProcess = spawnSync(resolvedPath, [], {
+      input: JSON.stringify(sanitizedInput),
+      encoding: 'utf-8',
+    });
+
+    const { stdout, stderr, status } = hookProcess;
+
+    if (status !== 0) {
+      console.error(`Pre-receive hook failed with exit code ${status}`);
+      step.error = true;
+      step.log(`Hook stderr: ${stderr.trim()}`);
+      step.setError(stdout.trim());
+      action.addStep(step);
+      return action;
+    }
+
+    console.log('Pre-receive hook executed successfully');
+    console.log(`Hook stdout: ${stdout.trim()}`);
+    step.log('Pre-receive hook executed successfully');
+    action.addStep(step);
+    return action;
+  } catch (error) {
+    console.error('Error during pre-receive hook execution:', error);
+    step.error = true;
+    step.setError(`Hook execution error: ${error.message}`);
+    action.addStep(step);
+    return action;
+  }
+};
+
+exec.displayName = 'executeExternalPreReceiveHook.exec';
+exports.exec = exec;