prototype fpm build with docker action

src/action.js

@@ -0,0 +1,29 @@
+import * as core from '@actions/core';
+import * as github from '@actions/github';
+import * as action_information from 'information';
+import {
+  executeFpmBuild,
+  isTrueString, prepareFpmArgs
+} from './lib';
+
+
+try {
+  if (isTrueString(core.getBooleanInput('debug_log_github_context'))) {
+    console.log(JSON.stringify(github.context, null, 2));
+  }
+
+  const information = action_information.collect_all(true, false);
+  const debug = isTrueString(process.env['ACTIONS_STEP_DEBUG']);
+
+  const fpmArgs = prepareFpmArgs();
+  if (debug) {
+    console.log('fpmArgs:', JSON.stringify(fpmArgs, null, 2));
+  }
+
+  executeFpmBuild(fpmArgs);
+}
+catch (error) {
+  console.log('Failed to fpm packages', error);
+  core.setFailed(error.message);
+  process.exit(1);
+}

src/lib.js

@@ -0,0 +1,42 @@
+import * as core from '@actions/core';
+import child_process from 'child_process';
+
+export function prepareFpmArgs() {
+  return '';
+}
+
+export function executeFpmBuild(computedFpmArgs) {
+
+  const userFpmArgs = core.getInput('fpm_args');
+  const dockerCmd   = 'docker run --rm -i'
+    + ' -v ' + process.cwd() + ':/workspace/source'
+    + ' -w /workspace/source'
+    + 'gitea.dhswt.de/actions/fpm:latest'
+    + ' ' + computedFpmArgs
+    + ' ' + userFpmArgs;
+
+  const proc = child_process.spawnSync(dockerCmd, {
+    shell: true,
+    stdio: 'inherit',
+    cwd  : process.cwd()
+  });
+
+  if (proc.status != null && proc.status > 0) {
+    throw new Error('fpm build failed');
+  }
+
+  if (proc.error != null) {
+    throw proc.error;
+  }
+}
+
+function isNonEmptyStr(str) {
+  return str != null && str !== 'false' && str.length > 0;
+}
+
+export function isTrueString(str) {
+  return str === '1'
+    || str === 'true'
+    || str === 'True'
+    || str === 'TRUE';
+}