planning

node_modules/decap-cms-backend-bitbucket/src/git-lfs-client.ts

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+import minimatch from 'minimatch';
+import { unsentRequest } from 'decap-cms-lib-util';
+
+import type { ApiRequest, PointerFile } from 'decap-cms-lib-util';
+
+type MakeAuthorizedRequest = (req: ApiRequest) => Promise<Response>;
+
+interface LfsBatchAction {
+  href: string;
+  header?: { [key: string]: string };
+  expires_in?: number;
+  expires_at?: string;
+}
+
+interface LfsBatchObject {
+  oid: string;
+  size: number;
+}
+
+interface LfsBatchObjectUpload extends LfsBatchObject {
+  actions?: {
+    upload: LfsBatchAction;
+    verify?: LfsBatchAction;
+  };
+}
+
+interface LfsBatchObjectError extends LfsBatchObject {
+  error: {
+    code: number;
+    message: string;
+  };
+}
+
+interface LfsBatchUploadResponse {
+  transfer?: string;
+  objects: (LfsBatchObjectUpload | LfsBatchObjectError)[];
+}
+
+export class GitLfsClient {
+  private static defaultContentHeaders = {
+    Accept: 'application/vnd.git-lfs+json',
+    ['Content-Type']: 'application/vnd.git-lfs+json',
+  };
+
+  constructor(
+    public enabled: boolean,
+    public rootURL: string,
+    public patterns: string[],
+    private makeAuthorizedRequest: MakeAuthorizedRequest,
+  ) {}
+
+  matchPath(path: string) {
+    return this.patterns.some(pattern => minimatch(path, pattern, { matchBase: true }));
+  }
+
+  async uploadResource(pointer: PointerFile, resource: Blob): Promise<string> {
+    const requests = await this.getResourceUploadRequests([pointer]);
+    for (const request of requests) {
+      await this.doUpload(request.actions!.upload, resource);
+      if (request.actions!.verify) {
+        await this.doVerify(request.actions!.verify, request);
+      }
+    }
+    return pointer.sha;
+  }
+
+  private async doUpload(upload: LfsBatchAction, resource: Blob) {
+    await unsentRequest.fetchWithTimeout(decodeURI(upload.href), {
+      method: 'PUT',
+      body: resource,
+      headers: upload.header,
+    });
+  }
+  private async doVerify(verify: LfsBatchAction, object: LfsBatchObject) {
+    this.makeAuthorizedRequest({
+      url: decodeURI(verify.href),
+      method: 'POST',
+      headers: { ...GitLfsClient.defaultContentHeaders, ...verify.header },
+      body: JSON.stringify({ oid: object.oid, size: object.size }),
+    });
+  }
+
+  private async getResourceUploadRequests(objects: PointerFile[]): Promise<LfsBatchObjectUpload[]> {
+    const response = await this.makeAuthorizedRequest({
+      url: `${this.rootURL}/objects/batch`,
+      method: 'POST',
+      headers: GitLfsClient.defaultContentHeaders,
+      body: JSON.stringify({
+        operation: 'upload',
+        transfers: ['basic'],
+        objects: objects.map(({ sha, ...rest }) => ({ ...rest, oid: sha })),
+      }),
+    });
+    return ((await response.json()) as LfsBatchUploadResponse).objects.filter(object => {
+      if ('error' in object) {
+        console.error(object.error);
+        return false;
+      }
+      return object.actions;
+    });
+  }
+}