Add code to output required env to files

lib/runner.js

@@ -81,7 +81,36 @@ program
             codeql = await init_1.initCodeQL(undefined, cmd.githubAuth, parseGithubUrl(cmd.githubUrl), tempDir, toolsDir, 'runner', logger);
         }
         const config = await init_1.initConfig(cmd.languages, cmd.queries, cmd.configFile, tempDir, toolsDir, codeql, cmd.checkoutPath || process.cwd(), cmd.githubAuth, parseGithubUrl(cmd.githubUrl), logger);
-        await init_1.runInit(codeql, config);
+        const tracerConfig = await init_1.runInit(codeql, config);
+        if (tracerConfig !== undefined) {
+            if (process.platform === 'win32') {
+                const batEnvFile = path.join(config.tempDir, 'codeql-env.bat');
+                const batEnvFileContents = Object.entries(tracerConfig.env)
+                    .map(([key, value]) => `Set ${key}=${value}`)
+                    .join('\n');
+                fs.writeFileSync(batEnvFile, batEnvFileContents);
+                const powershellEnvFile = path.join(config.tempDir, 'codeql-env.sh');
+                const powershellEnvFileContents = Object.entries(tracerConfig.env)
+                    .map(([key, value]) => `$env:${key}="${value}"`)
+                    .join('\n');
+                fs.writeFileSync(powershellEnvFile, powershellEnvFileContents);
+                logger.info(`CodeQL environment outputted to "${batEnvFileContents}" and "${powershellEnvFile}". ` +
+                    `Please export these variables to future processes so the build can tbe traced. ` +
+                    `If using cmd/batch run "call ${batEnvFileContents}" ` +
+                    `or if using PowerShell run "cat ${powershellEnvFile} | Invoke-Expression".`);
+            }
+            else {
+                // Assume that anything that's not windows is using a unix-style shell
+                const envFile = path.join(config.tempDir, 'codeql-env.sh');
+                const envFileContents = Object.entries(tracerConfig.env)
+                    .map(([key, value]) => `${key}="${value}"`)
+                    .join('\n');
+                fs.writeFileSync(envFile, envFileContents);
+                logger.info(`CodeQL environment outputted to "${envFile}". ` +
+                    `Please export these variables to future processes so the build can tbe traced, ` +
+                    `for example by running "source ${envFile}".`);
+            }
+        }
     }
     catch (e) {
         logger.error('Init failed');

src/runner.ts

@@ -114,7 +114,39 @@ program
         parseGithubUrl(cmd.githubUrl),
         logger);
 
-      await runInit(codeql, config);
+      const tracerConfig = await runInit(codeql, config);
+      if (tracerConfig !== undefined) {
+        if (process.platform === 'win32') {
+          const batEnvFile = path.join(config.tempDir, 'codeql-env.bat');
+          const batEnvFileContents = Object.entries(tracerConfig.env)
+            .map(([key, value]) => `Set ${key}=${value}`)
+            .join('\n');
+          fs.writeFileSync(batEnvFile, batEnvFileContents);
+
+          const powershellEnvFile = path.join(config.tempDir, 'codeql-env.sh');
+          const powershellEnvFileContents = Object.entries(tracerConfig.env)
+            .map(([key, value]) => `$env:${key}="${value}"`)
+            .join('\n');
+          fs.writeFileSync(powershellEnvFile, powershellEnvFileContents);
+
+          logger.info(`CodeQL environment outputted to "${batEnvFileContents}" and "${powershellEnvFile}". ` +
+            `Please export these variables to future processes so the build can tbe traced. ` +
+            `If using cmd/batch run "call ${batEnvFileContents}" ` +
+            `or if using PowerShell run "cat ${powershellEnvFile} | Invoke-Expression".`);
+
+        } else {
+          // Assume that anything that's not windows is using a unix-style shell
+          const envFile = path.join(config.tempDir, 'codeql-env.sh');
+          const envFileContents = Object.entries(tracerConfig.env)
+            .map(([key, value]) => `${key}="${value}"`)
+            .join('\n');
+          fs.writeFileSync(envFile, envFileContents);
+
+          logger.info(`CodeQL environment outputted to "${envFile}". ` +
+            `Please export these variables to future processes so the build can tbe traced, ` +
+            `for example by running "source ${envFile}".`);
+        }
+      }
 
     } catch (e) {
       logger.error('Init failed');