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Add support for sparse checkouts (#1369)

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* Add support for sparse checkouts

* sparse-checkout: optionally turn off cone mode

While it _is_ true that cone mode is the default nowadays (mainly for
performance reasons: code mode is much faster than non-cone mode), there
_are_ legitimate use cases where non-cone mode is really useful.

Let's add a flag to optionally disable cone mode.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

* Verify minimum Git version for sparse checkout

The `git sparse-checkout` command is available only since Git version
v2.25.0. The `actions/checkout` Action actually supports older Git
versions than that; As of time of writing, the minimum version is
v2.18.0.

Instead of raising this minimum version even for users who do not
require a sparse checkout, only check for this minimum version
specifically when a sparse checkout was asked for.

Suggested-by: Tingluo Huang <tingluohuang@github.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

* Support sparse checkout/LFS better

Instead of fetching all the LFS objects present in the current revision
in a sparse checkout, whether they are needed inside the sparse cone or
not, let's instead only pull the ones that are actually needed.

To do that, let's avoid running that preemptive `git lfs fetch` call in
case of a sparse checkout.

An alternative that was considered during the development of this patch
(and ultimately rejected) was to use `git lfs pull --include <path>...`,
but it turned out to be too inflexible because it requires exact paths,
not the patterns that are available via the sparse checkout definition,
and that risks running into command-line length limitations.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

---------

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Co-authored-by: Daniel <daniel.fernandez@feverup.com>
This commit is contained in:
Johannes Schindelin
2023-06-09 15:08:21 +02:00
committed by GitHub
parent f095bcc56b
commit d106d4669b
14 changed files with 395 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

83
dist/index.js vendored
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@@ -470,6 +470,7 @@ Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.createCommandManager = exports.MinimumGitVersion = void 0;
const core = __importStar(__nccwpck_require__(2186));
const exec = __importStar(__nccwpck_require__(1514));
const fs = __importStar(__nccwpck_require__(7147));
const fshelper = __importStar(__nccwpck_require__(7219));
const io = __importStar(__nccwpck_require__(7436));
const path = __importStar(__nccwpck_require__(1017));
@@ -480,9 +481,9 @@ const git_version_1 = __nccwpck_require__(3142);
// Auth header not supported before 2.9
// Wire protocol v2 not supported before 2.18
exports.MinimumGitVersion = new git_version_1.GitVersion('2.18');
function createCommandManager(workingDirectory, lfs) {
function createCommandManager(workingDirectory, lfs, doSparseCheckout) {
return __awaiter(this, void 0, void 0, function* () {
return yield GitCommandManager.createCommandManager(workingDirectory, lfs);
return yield GitCommandManager.createCommandManager(workingDirectory, lfs, doSparseCheckout);
});
}
exports.createCommandManager = createCommandManager;
@@ -495,6 +496,7 @@ class GitCommandManager {
};
this.gitPath = '';
this.lfs = false;
this.doSparseCheckout = false;
this.workingDirectory = '';
}
branchDelete(remote, branch) {
@@ -574,6 +576,23 @@ class GitCommandManager {
return result;
});
}
sparseCheckout(sparseCheckout) {
return __awaiter(this, void 0, void 0, function* () {
yield this.execGit(['sparse-checkout', 'set', ...sparseCheckout]);
});
}
sparseCheckoutNonConeMode(sparseCheckout) {
return __awaiter(this, void 0, void 0, function* () {
yield this.execGit(['config', 'core.sparseCheckout', 'true']);
const output = yield this.execGit([
'rev-parse',
'--git-path',
'info/sparse-checkout'
]);
const sparseCheckoutPath = path.join(this.workingDirectory, output.stdout.trimRight());
yield fs.promises.appendFile(sparseCheckoutPath, `\n${sparseCheckout.join('\n')}\n`);
});
}
checkout(ref, startPoint) {
return __awaiter(this, void 0, void 0, function* () {
const args = ['checkout', '--progress', '--force'];
@@ -615,15 +634,18 @@ class GitCommandManager {
return output.exitCode === 0;
});
}
fetch(refSpec, fetchDepth) {
fetch(refSpec, options) {
return __awaiter(this, void 0, void 0, function* () {
const args = ['-c', 'protocol.version=2', 'fetch'];
if (!refSpec.some(x => x === refHelper.tagsRefSpec)) {
args.push('--no-tags');
}
args.push('--prune', '--progress', '--no-recurse-submodules');
if (fetchDepth && fetchDepth > 0) {
args.push(`--depth=${fetchDepth}`);
if (options.filter) {
args.push(`--filter=${options.filter}`);
}
if (options.fetchDepth && options.fetchDepth > 0) {
args.push(`--depth=${options.fetchDepth}`);
}
else if (fshelper.fileExistsSync(path.join(this.workingDirectory, '.git', 'shallow'))) {
args.push('--unshallow');
@@ -820,10 +842,10 @@ class GitCommandManager {
return output.exitCode === 0;
});
}
static createCommandManager(workingDirectory, lfs) {
static createCommandManager(workingDirectory, lfs, doSparseCheckout) {
return __awaiter(this, void 0, void 0, function* () {
const result = new GitCommandManager();
yield result.initializeCommandManager(workingDirectory, lfs);
yield result.initializeCommandManager(workingDirectory, lfs, doSparseCheckout);
return result;
});
}
@@ -859,7 +881,7 @@ class GitCommandManager {
return result;
});
}
initializeCommandManager(workingDirectory, lfs) {
initializeCommandManager(workingDirectory, lfs, doSparseCheckout) {
return __awaiter(this, void 0, void 0, function* () {
this.workingDirectory = workingDirectory;
// Git-lfs will try to pull down assets if any of the local/user/system setting exist.
@@ -911,6 +933,14 @@ class GitCommandManager {
throw new Error(`Minimum required git-lfs version is ${minimumGitLfsVersion}. Your git-lfs ('${gitLfsPath}') is ${gitLfsVersion}`);
}
}
this.doSparseCheckout = doSparseCheckout;
if (this.doSparseCheckout) {
// The `git sparse-checkout` command was introduced in Git v2.25.0
const minimumGitSparseCheckoutVersion = new git_version_1.GitVersion('2.25');
if (!gitVersion.checkMinimum(minimumGitSparseCheckoutVersion)) {
throw new Error(`Minimum Git version required for sparse checkout is ${minimumGitSparseCheckoutVersion}. Your git ('${this.gitPath}') is ${gitVersion}`);
}
}
// Set the user agent
const gitHttpUserAgent = `git/${gitVersion} (github-actions-checkout)`;
core.debug(`Set git useragent to: ${gitHttpUserAgent}`);
@@ -1210,20 +1240,24 @@ function getSource(settings) {
}
// Fetch
core.startGroup('Fetching the repository');
const fetchOptions = {};
if (settings.sparseCheckout)
fetchOptions.filter = 'blob:none';
if (settings.fetchDepth <= 0) {
// Fetch all branches and tags
let refSpec = refHelper.getRefSpecForAllHistory(settings.ref, settings.commit);
yield git.fetch(refSpec);
yield git.fetch(refSpec, fetchOptions);
// When all history is fetched, the ref we're interested in may have moved to a different
// commit (push or force push). If so, fetch again with a targeted refspec.
if (!(yield refHelper.testRef(git, settings.ref, settings.commit))) {
refSpec = refHelper.getRefSpec(settings.ref, settings.commit);
yield git.fetch(refSpec);
yield git.fetch(refSpec, fetchOptions);
}
}
else {
fetchOptions.fetchDepth = settings.fetchDepth;
const refSpec = refHelper.getRefSpec(settings.ref, settings.commit);
yield git.fetch(refSpec, settings.fetchDepth);
yield git.fetch(refSpec, fetchOptions);
}
core.endGroup();
// Checkout info
@@ -1233,11 +1267,23 @@ function getSource(settings) {
// LFS fetch
// Explicit lfs-fetch to avoid slow checkout (fetches one lfs object at a time).
// Explicit lfs fetch will fetch lfs objects in parallel.
if (settings.lfs) {
// For sparse checkouts, let `checkout` fetch the needed objects lazily.
if (settings.lfs && !settings.sparseCheckout) {
core.startGroup('Fetching LFS objects');
yield git.lfsFetch(checkoutInfo.startPoint || checkoutInfo.ref);
core.endGroup();
}
// Sparse checkout
if (settings.sparseCheckout) {
core.startGroup('Setting up sparse checkout');
if (settings.sparseCheckoutConeMode) {
yield git.sparseCheckout(settings.sparseCheckout);
}
else {
yield git.sparseCheckoutNonConeMode(settings.sparseCheckout);
}
core.endGroup();
}
// Checkout
core.startGroup('Checking out the ref');
yield git.checkout(checkoutInfo.ref, checkoutInfo.startPoint);
@@ -1291,7 +1337,7 @@ function cleanup(repositoryPath) {
}
let git;
try {
git = yield gitCommandManager.createCommandManager(repositoryPath, false);
git = yield gitCommandManager.createCommandManager(repositoryPath, false, false);
}
catch (_a) {
return;
@@ -1322,7 +1368,7 @@ function getGitCommandManager(settings) {
return __awaiter(this, void 0, void 0, function* () {
core.info(`Working directory is '${settings.repositoryPath}'`);
try {
return yield gitCommandManager.createCommandManager(settings.repositoryPath, settings.lfs);
return yield gitCommandManager.createCommandManager(settings.repositoryPath, settings.lfs, settings.sparseCheckout != null);
}
catch (err) {
// Git is required for LFS
@@ -1673,6 +1719,15 @@ function getInputs() {
// Clean
result.clean = (core.getInput('clean') || 'true').toUpperCase() === 'TRUE';
core.debug(`clean = ${result.clean}`);
// Sparse checkout
const sparseCheckout = core.getMultilineInput('sparse-checkout');
if (sparseCheckout.length) {
result.sparseCheckout = sparseCheckout;
core.debug(`sparse checkout = ${result.sparseCheckout}`);
}
result.sparseCheckoutConeMode =
(core.getInput('sparse-checkout-cone-mode') || 'true').toUpperCase() ===
'TRUE';
// Fetch depth
result.fetchDepth = Math.floor(Number(core.getInput('fetch-depth') || '1'));
if (isNaN(result.fetchDepth) || result.fetchDepth < 0) {