Support automatic discovery of codeql CLI distributions installed off-PATH by VS Code extension#91
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Support automatic discovery of codeql CLI distributions installed off-PATH by VS Code extension#91data-douser wants to merge 5 commits intomainfrom
codeql CLI distributions installed off-PATH by VS Code extension#91data-douser wants to merge 5 commits intomainfrom
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Dependency Review✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.OpenSSF ScorecardScorecard details
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Pull request overview
This PR improves CodeQL CLI discovery so the VS Code extension (and the bundled server) can find the vscode-codeql managed CodeQL CLI even when it’s installed off-PATH in VS Code global storage, and updates tests/build hygiene accordingly.
Changes:
- Extend VS Code extension
CliResolverto resolve CodeQL CLI fromvscode-codeql’s managed distribution viadistribution.json(fast path) ordistribution*directory scan (fallback). - Add server-side auto-discovery of the same managed distribution when
CODEQL_PATHis unset. - Update unit tests/mocks and adjust extension cleaning + formatting ignores for
.vscode-test.
Reviewed changes
Copilot reviewed 8 out of 11 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| server/src/lib/cli-executor.ts | Adds VS Code globalStorage candidate computation and vscode-codeql distribution discovery in server-side resolveCodeQLBinary(). |
| server/test/src/lib/cli-executor.test.ts | Updates existing assertions to tolerate auto-discovery; adds new tests for candidate paths/discovery. |
| server/dist/codeql-development-mcp-server.js | Re-bundled build artifact reflecting cli-executor.ts changes. |
| extensions/vscode/src/codeql/cli-resolver.ts | Adds managed-distribution resolution strategy using distribution.json and directory scan. |
| extensions/vscode/src/extension.ts | Passes vscode-codeql storage path into CliResolver via StoragePaths. |
| extensions/vscode/test/codeql/cli-resolver.test.ts | Adds tests for managed-distribution discovery; expands fs/promises mocks. |
| extensions/vscode/test/extension.test.ts | Refactors mocks and adjusts mock-reset behavior for improved isolation. |
| extensions/vscode/package.json | Extends clean to remove .vscode-test/* artifacts. |
| .prettierignore | Ignores .vscode-test output directory. |
| package-lock.json | Lockfile metadata updates (removal of some peer: true flags). |
Comments suppressed due to low confidence (1)
server/test/src/lib/cli-executor.test.ts:860
- The new
discoverVsCodeCodeQLDistributiontests are effectively no-ops: they create a simulated distribution directory but never calldiscoverVsCodeCodeQLDistribution()(and thus never assert the resolution behavior). They also rely on whether vscode-codeql happens to be installed on the machine running the tests, which makes the suite non-deterministic. It would be better to make the tests deterministic by controlling the home/globalStorage candidate root (e.g., viaprocess.env.HOME/APPDATAor mockingos.homedir()/getVsCodeGlobalStorageCandidates()) and then asserting the function returns the expected binary path.
describe('discoverVsCodeCodeQLDistribution', () => {
it('should return undefined when no vscode-codeql storage exists', () => {
// In the test environment, the vscode-codeql storage is unlikely to exist
// at the standard location, so discovery should return undefined.
// This is effectively a no-op test that ensures the function handles
// missing directories gracefully.
const result = discoverVsCodeCodeQLDistribution();
// Result depends on whether vscode-codeql is installed — just verify it doesn't throw
expect(result === undefined || typeof result === 'string').toBe(true);
});
it('should discover CLI from a simulated distribution directory', () => {
const tmpDir = createProjectTempDir('vscode-codeql-discovery-test-');
const codeqlStorage = join(tmpDir, 'github.vscode-codeql');
const distDir = join(codeqlStorage, 'distribution3', 'codeql');
// Create the distribution directory structure with a fake binary
mkdirSync(distDir, { recursive: true });
const binaryPath = join(distDir, process.platform === 'win32' ? 'codeql.exe' : 'codeql');
writeFileSync(binaryPath, '#!/bin/sh\necho test', { mode: 0o755 });
// Also create distribution.json
writeFileSync(
join(codeqlStorage, 'distribution.json'),
JSON.stringify({ folderIndex: 3 }),
);
try {
// We can't easily test discoverVsCodeCodeQLDistribution directly because
// it uses hardcoded platform-specific paths. Instead, test the behavior
// by creating the structure and verifying the file was created correctly.
expect(existsSync(binaryPath)).toBe(true);
} finally {
rmSync(tmpDir, { recursive: true, force: true });
}
});
The MCP server now automatically finds the CodeQL CLI binary installed by the GitHub.vscode-codeql extension, which stores it off-PATH at: <globalStorage>/github.vscode-codeql/distribution<N>/codeql/codeql Discovery uses distribution.json (folderIndex hint) with a fallback to scanning distribution* directories sorted by descending index. This is implemented at two layers: - VS Code extension CliResolver (Strategy 3, between PATH and known locations) — uses the StoragePaths-provided storage directory - Server-side cli-executor (fallback when CODEQL_PATH is unset) — probes platform-specific VS Code global storage directories for Code, Code - Insiders, and VSCodium Also fixes extension.test.ts constructor mocks for Vitest 4.x compatibility (vi.clearAllMocks instead of vi.resetAllMocks). T_EDITOR=true git rebase --continue
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Pull request overview
Copilot reviewed 8 out of 10 changed files in this pull request and generated 2 comments.
Comments suppressed due to low confidence (1)
server/test/src/lib/cli-executor.test.ts:697
- Several
resolveCodeQLBinaryassertions were loosened to allow eithernullorstringforgetResolvedCodeQLDir(), which makes these tests non-deterministic and stops them from validating the intended behavior. Instead of depending on whether vscode-codeql happens to be installed on the CI/host machine, mock/stub the vscode-codeql auto-discovery path (or make it injectable) so the tests can assert a specificresolvedCodeQLDirvalue for each scenario.
it('should default to "codeql" when CODEQL_PATH is not set', () => {
delete process.env.CODEQL_PATH;
const result = resolveCodeQLBinary();
expect(result).toBe('codeql');
// getResolvedCodeQLDir() may be non-null if the vscode-codeql
// distribution is installed on this machine (auto-discovery)
const dir = getResolvedCodeQLDir();
expect(dir === null || typeof dir === 'string').toBe(true);
});
it('should default to "codeql" when CODEQL_PATH is empty', () => {
process.env.CODEQL_PATH = '';
const result = resolveCodeQLBinary();
expect(result).toBe('codeql');
// getResolvedCodeQLDir() may be non-null if the vscode-codeql
// distribution is installed on this machine (auto-discovery)
const dir = getResolvedCodeQLDir();
expect(dir === null || typeof dir === 'string').toBe(true);
});
it('should return bare codeql command and set dir to parent directory', () => {
// Create a temporary file named "codeql" to pass validation
const tmpDir = createProjectTempDir('codeql-path-test-');
const codeqlPath = join(tmpDir, 'codeql');
writeFileSync(codeqlPath, '#!/bin/sh\necho test', { mode: 0o755 });
try {
process.env.CODEQL_PATH = codeqlPath;
const result = resolveCodeQLBinary();
expect(result).toBe('codeql');
expect(getResolvedCodeQLDir()).toBe(tmpDir);
} finally {
rmSync(tmpDir, { recursive: true, force: true });
}
});
it('should reject CODEQL_PATH with wrong basename', () => {
process.env.CODEQL_PATH = '/usr/local/bin/not-codeql';
expect(() => resolveCodeQLBinary()).toThrow('expected basename: codeql');
});
it('should reject a relative CODEQL_PATH', () => {
process.env.CODEQL_PATH = 'relative/path/to/codeql';
expect(() => resolveCodeQLBinary()).toThrow('must be an absolute path');
});
it('should reject CODEQL_PATH pointing to a non-existent file', () => {
process.env.CODEQL_PATH = '/nonexistent/path/to/codeql';
expect(() => resolveCodeQLBinary()).toThrow('does not exist');
});
it('should reject non-existent CODEQL_PATH even with valid basename', () => {
// Verify that a well-named but non-existent path is rejected for non-existence
// (the basename 'codeql' passes validation, but the file doesn't exist).
process.env.CODEQL_PATH = '/tmp/nonexistent-dir/codeql';
expect(() => resolveCodeQLBinary()).toThrow('does not exist');
});
it('should cache the resolved dir via getResolvedCodeQLDir', () => {
delete process.env.CODEQL_PATH;
resolveCodeQLBinary();
// May be non-null if vscode-codeql distribution is auto-discovered
const dir = getResolvedCodeQLDir();
expect(dir === null || typeof dir === 'string').toBe(true);
});
it('should reset to default via resetResolvedCodeQLBinary', () => {
delete process.env.CODEQL_PATH;
resolveCodeQLBinary();
resetResolvedCodeQLBinary();
expect(getResolvedCodeQLDir()).toBeNull();
});
it('should accept codeql.exe basename on Windows-style paths', () => {
// This tests basename validation only; the file won't exist.
process.env.CODEQL_PATH = '/some/path/codeql.exe';
expect(() => resolveCodeQLBinary()).toThrow('does not exist');
// The error should be about non-existence, NOT about an invalid basename
});
it('should accept codeql.cmd basename', () => {
process.env.CODEQL_PATH = '/some/path/codeql.cmd';
expect(() => resolveCodeQLBinary()).toThrow('does not exist');
});
});
describe('CODEQL_PATH - PATH prepend integration', () => {
const originalEnv = process.env.CODEQL_PATH;
afterEach(() => {
if (originalEnv === undefined) {
delete process.env.CODEQL_PATH;
} else {
process.env.CODEQL_PATH = originalEnv;
}
resetResolvedCodeQLBinary();
});
it('should cache resolved value and ignore subsequent env changes', () => {
delete process.env.CODEQL_PATH;
const first = resolveCodeQLBinary();
expect(first).toBe('codeql');
// Change the env after resolution — should still return cached value
process.env.CODEQL_PATH = '/some/changed/path/codeql';
const second = resolveCodeQLBinary();
expect(second).toBe('codeql');
// getResolvedCodeQLDir() may be non-null if vscode-codeql
// distribution was auto-discovered on the first resolve()
const dir = getResolvedCodeQLDir();
expect(dir === null || typeof dir === 'string').toBe(true);
});
Collaborator
Author
|
@copilot open a new pull request to apply changes based on the comments in this thread |
Contributor
|
@data-douser I've opened a new pull request, #92, to work on those changes. Once the pull request is ready, I'll request review from you. |
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Resolves #89
Summary of Changes
This pull request introduces a new strategy for discovering the CodeQL CLI binary in the VSCode extension, prioritizing the managed distribution from the
vscode-codeqlextension. It also updates related tests and mocks to support this logic, and makes minor improvements to test setup and ignore files. The most significant changes are grouped below.Outline of Changes
CodeQL CLI discovery improvements:
CliResolver(extensions/vscode/src/codeql/cli-resolver.ts) to find the CodeQL CLI binary from thevscode-codeqlmanaged distribution, usingdistribution.jsonas a hint and scanningdistribution*directories as a fallback. This ensures the extension can locate the correct CLI version even after upgrades. [1] [2] [3]extensions/vscode/src/extension.ts) to provide the global storage path toCliResolver, enabling the new discovery strategy.Testing and mocks:
cli-resolver.test.ts, covering fast-path, fallback, sorting, and error handling scenarios.Build and cleanup adjustments:
cleanscript inpackage.jsonto remove.vscode-test/*, preventing stale test artifacts..vscode-testto.prettierignoreto avoid formatting issues with test output directories.These changes collectively make the extension more robust in locating the CodeQL CLI and improve test reliability and build hygiene.