buildx: fix broken local state

__tests__/buildx/buildx.test.ts

@@ -24,7 +24,7 @@ import {Buildx} from '../../src/buildx/buildx';
 import {Context} from '../../src/context';
 import {Exec} from '../../src/exec';
 
-import {Cert} from '../../src/types/buildx/buildx';
+import {Cert, LocalState} from '../../src/types/buildx/buildx';
 
 const fixturesDir = path.join(__dirname, '..', 'fixtures');
 // prettier-ignore
@@ -250,19 +250,70 @@ describe('resolveCertsDriverOpts', () => {
   });
 });
 
+describe('localState', () => {
+  // prettier-ignore
+  test.each([
+    [
+      'default/default/ij71n3ubmhck85d03zdvye5nr',
+      {
+        LocalPath: '/home/crazymax/github/docker_org/buildx',
+        DockerfilePath: '/home/crazymax/github/docker_org/buildx/Dockerfile'
+      } as LocalState,
+    ],
+    [
+      'default/default/7pnnqpgacnqq98oa1a1h5sz6t',
+      {
+        LocalPath: 'https://github.com/docker/actions-toolkit.git#:__tests__/fixtures',
+        DockerfilePath: 'hello.Dockerfile'
+      } as LocalState,
+    ],
+    [
+      'default/default/84p2qpgacnqq98oa1a1h5sz6t',
+      {
+        LocalPath: 'https://github.com/docker/actions-toolkit.git#:__tests__/fixtures',
+        DockerfilePath: '-'
+      } as LocalState,
+    ],
+    [
+      'default/default/a5s9rlg9cnqq98oa1a1h5sz6t',
+      {
+        LocalPath: '-',
+        DockerfilePath: ''
+      } as LocalState,
+    ],
+    [
+      'default/default/aav2ix4nw5eky66fw045dkylr',
+      {
+        LocalPath: 'https://github.com/docker/buildx.git',
+        DockerfilePath: ''
+      } as LocalState,
+    ],
+    [
+      'default/default/w38vcd5fo5cfvfyig77qjec0v',
+      {
+        LocalPath: '/home/crazy/hello',
+        DockerfilePath: '-'
+      } as LocalState,
+    ]
+  ])('given %p', async (ref: string, expected: LocalState) => {
+    const localState = Buildx.localState(path.join(fixturesDir, 'buildx-refs'), ref);
+    expect(localState).toEqual(expected);
+  });
+});
+
 describe('refs', () => {
   it('returns all refs', async () => {
     const refs = Buildx.refs({
       dir: path.join(fixturesDir, 'buildx-refs')
     });
-    expect(Object.keys(refs).length).toEqual(11);
+    expect(Object.keys(refs).length).toEqual(16);
   });
   it('returns default builder refs', async () => {
     const refs = Buildx.refs({
       dir: path.join(fixturesDir, 'buildx-refs'),
       builderName: 'default'
     });
-    expect(Object.keys(refs).length).toEqual(8);
+    expect(Object.keys(refs).length).toEqual(13);
   });
   it('returns foo builder refs', async () => {
     const refs = Buildx.refs({
@@ -281,6 +332,6 @@ describe('refs', () => {
       builderName: 'default',
       since: new Date('2024-01-10T00:00:00Z')
     });
-    expect(Object.keys(refs).length).toEqual(5);
+    expect(Object.keys(refs).length).toEqual(10);
   });
 });

__tests__/fixtures/buildx-refs/default/default/7pnnqpgacnqq98oa1a1h5sz6t

@@ -0,0 +1 @@
+{"LocalPath":"/home/crazy/foo/bar/https:/github.com/docker/actions-toolkit.git#:__tests__/fixtures","DockerfilePath":"/home/crazy/foo/bar/hello.Dockerfile"}

__tests__/fixtures/buildx-refs/default/default/84p2qpgacnqq98oa1a1h5sz6t

@@ -0,0 +1 @@
+{"LocalPath":"/home/crazy/foo/bar/https:/github.com/docker/actions-toolkit.git#:__tests__/fixtures","DockerfilePath":"/home/crazy/foo/bar/-"}

__tests__/fixtures/buildx-refs/default/default/a5s9rlg9cnqq98oa1a1h5sz6t

@@ -0,0 +1 @@
+{"LocalPath":"/home/crazy/foo/bar/-","DockerfilePath":""}

__tests__/fixtures/buildx-refs/default/default/aav2ix4nw5eky66fw045dkylr

@@ -0,0 +1 @@
+{"LocalPath":"/home/crazy/foo/bar/https:/github.com/docker/buildx.git","DockerfilePath":""}

__tests__/fixtures/buildx-refs/default/default/w38vcd5fo5cfvfyig77qjec0v

@@ -0,0 +1 @@
+{"LocalPath":"/home/crazy/hello","DockerfilePath":"/home/crazy/hello/-"}

src/buildx/buildx.ts

@@ -177,6 +177,54 @@ export class Buildx {
     return driverOpts;
   }
 
+  public static localState(dir: string, ref: string): LocalState {
+    const [builderName, nodeName, id] = ref.split('/');
+    if (!builderName || !nodeName || !id) {
+      throw new Error(`Invalid build reference: ${ref}`);
+    }
+    const lsPath = path.join(dir, builderName, nodeName, id);
+    if (!fs.existsSync(lsPath)) {
+      throw new Error(`Local state not found in ${lsPath}`);
+    }
+    return Buildx.fixLocalState(<LocalState>JSON.parse(fs.readFileSync(lsPath, 'utf8')));
+  }
+
+  // https://github.com/docker/buildx/pull/2560
+  private static fixLocalState(ls: LocalState): LocalState {
+    const fnTrimToValidContext = function (inp: string): [string, string, boolean] {
+      const match = inp.match(/(.*)(https?:\/{1,2}\S+|ssh:\/\/\S+|git:\/\/\S+)/i);
+      if (match && match.length == 3) {
+        const trimed = match[1];
+        let url = match[2];
+        if (url.startsWith('https:/') && !url.startsWith('https://')) {
+          url = url.replace('https:/', 'https://');
+        }
+        if (url.startsWith('http:/') && !url.startsWith('http://')) {
+          url = url.replace('http:/', 'http://');
+        }
+        if (url.startsWith('ssh:/') && !url.startsWith('ssh://')) {
+          url = url.replace('https:/', 'ssh://');
+        }
+        if (url.startsWith('git:/') && !url.startsWith('git://')) {
+          url = url.replace('https:/', 'git://');
+        }
+        return [url, trimed, true];
+      }
+      return [inp, '', false];
+    };
+
+    const [contextPath, trimedPath, isURL] = fnTrimToValidContext(ls.LocalPath);
+    if (isURL) {
+      ls.LocalPath = contextPath;
+      if (ls.DockerfilePath.indexOf(trimedPath) === 0) {
+        ls.DockerfilePath = ls.DockerfilePath.substring(trimedPath.length);
+      }
+    }
+    ls.LocalPath = ls.LocalPath.endsWith('/-') ? '-' : ls.LocalPath;
+    ls.DockerfilePath = ls.DockerfilePath.endsWith('/-') ? '-' : ls.DockerfilePath;
+    return ls;
+  }
+
   public static refs(opts: LocalRefsOpts, refs: LocalRefsResponse = {}): LocalRefsResponse {
     const {dir, builderName, nodeName, since} = opts;
 
@@ -210,7 +258,7 @@ export class Buildx {
         if (since && stat.mtime < since) {
           continue;
         }
-        const localState = <LocalState>JSON.parse(fs.readFileSync(filePath, 'utf8'));
+        const localState = Buildx.fixLocalState(<LocalState>JSON.parse(fs.readFileSync(filePath, 'utf8')));
         const ref = `${builderName}/${nodeName}/${file}`;
         refs[ref] = localState;
       }