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import type { Logger } from '../utils/logger.js';
import {
applyPinToCatalogFile,
applyPinToVersionFile,
GITCORE_PIN_CATALOG_PATH,
GITCORE_PIN_VERSION_PATH,
parsePinBlock,
previewPinDiff,
type ApplyPinUpdateInput,
type PinBlock,
} from '../utils/pin-files.js';
import { DEFAULT_GITCORE_HOST } from '../config.js';
export type GitcoreFile = {
path: string;
content: string;
sha: string;
};
export type CommitFilesInput = {
repo: string;
baseBranch: string;
newBranch: string;
message: string;
files: Array<{ path: string; content: string }>;
};
export type CreatePullRequestInput = {
repo: string;
base: string;
head: string;
title: string;
body: string;
};
export type PreparedPinUpdate = {
oldPin: PinBlock;
versionPath: string;
catalogPath: string;
versionOld: string;
versionNew: string;
catalogOld: string;
catalogNew: string;
diff: string;
};
export interface IGitCoreService {
getFile(repo: string, path: string, ref: string): Promise<GitcoreFile>;
getRefSha(repo: string, branch: string): Promise<string>;
createBranch(repo: string, newBranch: string, fromSha: string): Promise<void>;
commitFiles(input: CommitFilesInput): Promise<string>;
createPullRequest(input: CreatePullRequestInput): Promise<string>;
readSldsScsPin(repo: string, targetBranch: string): Promise<PinBlock>;
preparePinUpdate(
repo: string,
targetBranch: string,
update: Pick<ApplyPinUpdateInput, 'newVersion' | 'newSha256' | 'newSha1'>,
): Promise<PreparedPinUpdate>;
}
function coreRepo(releaseId: string): string {
return `core-2206/core-${releaseId}-public`;
}
export { coreRepo };
// Read / write gitcore repos via `gh api` (no Workspace checkout).
export class GitCoreService implements IGitCoreService {
constructor(
private readonly logger: Logger,
private readonly gitcoreHost = DEFAULT_GITCORE_HOST,
) {}
private async ghApi(args: string[], options: { input?: string } = {}): Promise<string> {
const { stdout } = await execa('gh', ['api', ...args], {
env: { ...process.env, GH_HOST: this.gitcoreHost },
input: options.input,
});
return stdout;
}
async getFile(repo: string, path: string, ref: string): Promise<GitcoreFile> {
const encodedPath = path
.split('/')
.map((p) => encodeURIComponent(p))
.join('/');
const raw = await this.ghApi([`repos/${repo}/contents/${encodedPath}?ref=${encodeURIComponent(ref)}`]);
const json = JSON.parse(raw) as { content?: string; encoding?: string; sha?: string; path?: string };
if (!json.content || !json.sha) {
throw new Error(`Unexpected contents response for ${repo}:${path}@${ref}`);
}
const content =
json.encoding === 'base64'
? Buffer.from(json.content.replace(/\n/g, ''), 'base64').toString('utf8')
: json.content;
return { path: json.path ?? path, content, sha: json.sha };
}
async getRefSha(repo: string, branch: string): Promise<string> {
const raw = await this.ghApi([`repos/${repo}/git/ref/heads/${branch}`]);
const json = JSON.parse(raw) as { object?: { sha?: string } };
if (!json.object?.sha) {
throw new Error(`Could not resolve ref heads/${branch} on ${repo}`);
}
return json.object.sha;
}
async createBranch(repo: string, newBranch: string, fromSha: string): Promise<void> {
this.logger.step(`Create branch ${newBranch} on ${repo}`);
await this.ghApi([`--method`, `POST`, `repos/${repo}/git/refs`, `--input`, `-`], {
input: JSON.stringify({
ref: `refs/heads/${newBranch}`,
sha: fromSha,
}),
});
}
async commitFiles(input: CommitFilesInput): Promise<string> {
const { repo, baseBranch, newBranch, message, files } = input;
this.logger.step(`Commit ${files.length} file(s) on ${newBranch}`);
const baseSha = await this.getRefSha(repo, baseBranch);
await this.createBranch(repo, newBranch, baseSha);
const commitRaw = await this.ghApi([`repos/${repo}/git/commits/${baseSha}`]);
const baseCommit = JSON.parse(commitRaw) as { tree: { sha: string } };
const baseTreeSha = baseCommit.tree.sha;
const treeItems: Array<{ path: string; mode: string; type: string; sha: string }> = [];
for (const file of files) {
const blobRaw = await this.ghApi([`--method`, `POST`, `repos/${repo}/git/blobs`, `--input`, `-`], {
input: JSON.stringify({ content: file.content, encoding: 'utf-8' }),
});
const blob = JSON.parse(blobRaw) as { sha: string };
treeItems.push({
path: file.path,
mode: '100644',
type: 'blob',
sha: blob.sha,
});
}
const treeRaw = await this.ghApi([`--method`, `POST`, `repos/${repo}/git/trees`, `--input`, `-`], {
input: JSON.stringify({
base_tree: baseTreeSha,
tree: treeItems,
}),
});
const tree = JSON.parse(treeRaw) as { sha: string };
const newCommitRaw = await this.ghApi([`--method`, `POST`, `repos/${repo}/git/commits`, `--input`, `-`], {
input: JSON.stringify({
message,
tree: tree.sha,
parents: [baseSha],
}),
});
const newCommit = JSON.parse(newCommitRaw) as { sha: string };
await this.ghApi([`--method`, `PATCH`, `repos/${repo}/git/refs/heads/${newBranch}`, `--input`, `-`], {
input: JSON.stringify({ sha: newCommit.sha, force: false }),
});
return newCommit.sha;
}
async createPullRequest(input: CreatePullRequestInput): Promise<string> {
this.logger.step(`Create PR ${input.head} → ${input.base} on ${input.repo}`);
const { stdout } = await execa(
'gh',
[
'pr',
'create',
'--repo',
input.repo,
'--base',
input.base,
'--head',
input.head,
'--title',
input.title,
'--body',
input.body,
],
{ env: { ...process.env, GH_HOST: this.gitcoreHost } },
);
return stdout.trim();
}
async readSldsScsPin(repo: string, targetBranch: string): Promise<PinBlock> {
const versionFile = await this.getFile(repo, GITCORE_PIN_VERSION_PATH, targetBranch);
const catalogFile = await this.getFile(repo, GITCORE_PIN_CATALOG_PATH, targetBranch);
return parsePinBlock(versionFile.content, catalogFile.content);
}
async preparePinUpdate(
repo: string,
targetBranch: string,
update: Pick<ApplyPinUpdateInput, 'newVersion' | 'newSha256' | 'newSha1'>,
): Promise<PreparedPinUpdate> {
const versionFile = await this.getFile(repo, GITCORE_PIN_VERSION_PATH, targetBranch);
const catalogFile = await this.getFile(repo, GITCORE_PIN_CATALOG_PATH, targetBranch);
const oldPin = parsePinBlock(versionFile.content, catalogFile.content);
const input: ApplyPinUpdateInput = {
oldVersion: oldPin.version,
newVersion: update.newVersion,
oldSha256: oldPin.sha256,
newSha256: update.newSha256,
oldSha1: oldPin.sha1,
newSha1: update.newSha1,
};
const versionNew = applyPinToVersionFile(versionFile.content, input);
const catalogNew = applyPinToCatalogFile(catalogFile.content, input);
const diff = previewPinDiff(versionFile.content, versionNew, catalogFile.content, catalogNew);
return {
oldPin,
versionPath: GITCORE_PIN_VERSION_PATH,
catalogPath: GITCORE_PIN_CATALOG_PATH,
versionOld: versionFile.content,
versionNew,
catalogOld: catalogFile.content,
catalogNew,
diff,
};
}
}
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