new: Add cache-target input.

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 - Breaking: Cargo `bins` must provide the `cargo-` crate prefix manually. This change allows
   non-crate globals to be installed.
+- Added a `cache-target` input, to customize which target profile is cached. Defaults to `debug`.
 
 # 0.5.0
 

README.md

@@ -79,12 +79,14 @@ names.
 ## Caching in CI
 
 By default this action will cache the `~/.cargo/registry` and `/target/debug` directories to improve
-CI times. To disable caching, set the `cache` input to `false`.
+CI times. To disable caching, set the `cache` input to `false`. Furthermore, the target profile can
+be changed with the `cache-target` input, which defaults to `debug`.
 
 ```yaml
 - uses: moonrepo/setup-rust@v0
   with:
     cache: false
+    cache-target: release
 ```
 
 The following optimizations and considerations are taken into account when caching:
@@ -98,7 +100,7 @@ The following optimizations and considerations are taken into account when cachi
     `.cache`, and any other unnecessary files.
 - `/target`
   - Only the `/debug` profile is cached, as this profile is typically used for formatting, linting,
-    and testing.
+    and testing. This can be changed with the `cache-target` input.
   - The `/examples` and `/incremental` sub-directories are not cached as they are not necessary for
     CI.
   - All dep-info (`*.d`) files are removed, as they're meant for build systems and signaling

action.yml

@@ -7,8 +7,11 @@ inputs:
   bins:
     description: 'Comma-separated list of global binaries to install into Cargo.'
   cache:
-    description: 'Toggle caching of ~/.cargo/registry and /target/debug directories.'
+    description: 'Toggle caching of ~/.cargo/registry and /target/<cache-target> directories.'
     default: true
+  cache-target:
+    description: 'Name of the target profile to cache.'
+    default: 'debug'
   channel:
     description: 'Toolchain specification/channel to install.'
   components:

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@moonrepo/setup-rust",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "description": "A GitHub action for setting up Rust and Cargo.",
   "main": "dist/index.js",
   "scripts": {

src/cargo.ts

@@ -83,12 +83,16 @@ export async function installBins() {
 	await exec.exec('cargo', ['binstall', '--no-confirm', '--log-level', 'info', ...bins]);
 }
 
+export function getCacheTarget(): string {
+	return core.getInput('cache-target') || 'debug';
+}
+
 export function getCachePaths(): string[] {
 	return [
 		// ~/.cargo/registry
 		path.join(CARGO_HOME, 'registry'),
 		// /workspace/target/debug
-		path.join(WORKSPACE_ROOT, 'target/debug'),
+		path.join(WORKSPACE_ROOT, 'target', getCacheTarget()),
 	];
 }
 
@@ -112,6 +116,11 @@ export async function getPrimaryCacheKey() {
 	core.debug(`Hashing Cargo.lock = ${lockHash}`);
 	hasher.update(lockHash);
 
+	const cacheTarget = getCacheTarget();
+
+	core.debug(`Hashing target profile = ${cacheTarget}`);
+	hasher.update(cacheTarget);
+
 	const job = process.env.GITHUB_JOB;
 
 	if (job) {
@@ -148,11 +157,13 @@ export async function cleanCargoRegistry() {
 
 // https://doc.rust-lang.org/cargo/guide/build-cache.html
 export async function cleanTargetProfile() {
-	core.info('Cleaning target/debug before saving');
+	const targetProfile = getCacheTarget();
 
-	const targetDir = path.join(WORKSPACE_ROOT, 'target/debug');
+	core.info(`Cleaning target/${targetProfile} before saving`);
 
-	// target/debug/{examples,incremental} - Not required in CI
+	const targetDir = path.join(WORKSPACE_ROOT, 'target', targetProfile);
+
+	// target/*/{examples,incremental} - Not required in CI
 	core.info('Removing examples and incremental directories');
 
 	await Promise.all(
@@ -165,7 +176,7 @@ export async function cleanTargetProfile() {
 		}),
 	);
 
-	// target/debug/**/*.d - Not required in CI?
+	// target/**/*.d - Not required in CI?
 	core.info('Removing dep-info files (*.d)');
 
 	const globber = await glob.create(path.join(targetDir, '**/*.d'));