export build record and upload artifact

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

src/main.ts

@@ -4,11 +4,14 @@ import * as stateHelper from './state-helper';
 import * as core from '@actions/core';
 import * as actionsToolkit from '@docker/actions-toolkit';
 
+import {Buildx} from '@docker/actions-toolkit/lib/buildx/buildx';
+import {History as BuildxHistory} from '@docker/actions-toolkit/lib/buildx/history';
 import {Context} from '@docker/actions-toolkit/lib/context';
 import {Docker} from '@docker/actions-toolkit/lib/docker/docker';
 import {Exec} from '@docker/actions-toolkit/lib/exec';
 import {GitHub} from '@docker/actions-toolkit/lib/github';
 import {Toolkit} from '@docker/actions-toolkit/lib/toolkit';
+import {Util} from '@docker/actions-toolkit/lib/util';
 
 import {ConfigFile} from '@docker/actions-toolkit/lib/types/docker/docker';
 
@@ -17,6 +20,7 @@ import * as context from './context';
 actionsToolkit.run(
   // main
   async () => {
+    const startedTime = new Date();
     const inputs: context.Inputs = await context.getInputs();
     core.debug(`inputs: ${JSON.stringify(inputs)}`);
 
@@ -87,11 +91,12 @@ actionsToolkit.run(
     core.debug(`buildCmd.command: ${buildCmd.command}`);
     core.debug(`buildCmd.args: ${JSON.stringify(buildCmd.args)}`);
 
+    let err: Error | undefined;
     await Exec.getExecOutput(buildCmd.command, buildCmd.args, {
       ignoreReturnCode: true
     }).then(res => {
       if (res.stderr.length > 0 && res.exitCode != 0) {
-        throw new Error(`buildx failed with: ${res.stderr.match(/(.*)\s*$/)?.[0]?.trim() ?? 'unknown error'}`);
+        err = Error(`buildx failed with: ${res.stderr.match(/(.*)\s*$/)?.[0]?.trim() ?? 'unknown error'}`);
       }
     });
 
@@ -118,13 +123,62 @@ actionsToolkit.run(
         core.setOutput('metadata', metadatadt);
       });
     }
+    await core.group(`Reference`, async () => {
+      const ref = await buildRef(toolkit, startedTime, inputs.builder);
+      if (ref) {
+        core.info(ref);
+        stateHelper.setBuildRef(ref);
+      } else {
+        core.warning('No build ref found');
+      }
+    });
+    if (err) {
+      throw err;
+    }
   },
   // post
   async () => {
+    if (stateHelper.buildRef.length > 0) {
+      await core.group(`Exporting build record`, async () => {
+        try {
+          const buildxHistory = new BuildxHistory();
+          const exportRes = await buildxHistory.export({
+            refs: [stateHelper.buildRef]
+          });
+          core.info(`Build record exported to ${exportRes.dockerbuildFilename} (${Util.formatFileSize(exportRes.dockerbuildSize)})`);
+          await GitHub.uploadArtifact({
+            filename: exportRes.dockerbuildFilename,
+            mimeType: 'application/gzip',
+            retentionDays: 90
+          });
+        } catch (e) {
+          core.warning(e.message);
+        }
+      });
+    }
     if (stateHelper.tmpDir.length > 0) {
       await core.group(`Removing temp folder ${stateHelper.tmpDir}`, async () => {
         fs.rmSync(stateHelper.tmpDir, {recursive: true});
       });
     }
   }
 );
+
+async function buildRef(toolkit: Toolkit, since: Date, builder?: string): Promise<string> {
+  // get ref from metadata file
+  const ref = toolkit.buildxBuild.resolveRef();
+  if (ref) {
+    return ref;
+  }
+  // otherwise, look for the very first build ref since the build has started
+  if (!builder) {
+    const currentBuilder = await toolkit.builder.inspect();
+    builder = currentBuilder.name;
+  }
+  const refs = Buildx.refs({
+    dir: Buildx.refsDir,
+    builderName: builder,
+    since: since
+  });
+  return Object.keys(refs).length > 0 ? Object.keys(refs)[0] : '';
+}

src/state-helper.ts

@@ -1,7 +1,12 @@
 import * as core from '@actions/core';
 
 export const tmpDir = process.env['STATE_tmpDir'] || '';
+export const buildRef = process.env['STATE_buildRef'] || '';
 
 export function setTmpDir(tmpDir: string) {
   core.saveState('tmpDir', tmpDir);
 }
+
+export function setBuildRef(buildRef: string) {
+  core.saveState('buildRef', buildRef);
+}