added prefix-key, cache-directories, and cache-targets as features

action.yml

@@ -2,6 +2,10 @@ name: "Rust Cache"
 description: "A GitHub Action that implements smart caching for rust/cargo projects with sensible defaults."
 author: "Arpad Borsos <swatinem@swatinem.de>"
 inputs:
+  prefix-key:
+    description: "The prefix cache key, this can be changed to start a new cache manually"
+    required: false
+    default: "v0-rust"
   shared-key:
     description: "An additional cache key that is stable over multiple jobs"
     required: false
@@ -14,6 +18,13 @@ inputs:
   workspaces:
     description: "Paths to multiple Cargo workspaces and their target directories, separated by newlines"
     required: false
+  cache-directories:
+    description: "Additional non workspace directories, separated by newlines"
+    required: false
+  cache-targets:
+    description: "Determines whether workspace targets are cached"
+    required: false
+    default: "true"
   cache-on-failure:
     description: "Cache even if the build fails. Defaults to false"
     required: false

src/config.ts

@@ -50,7 +50,7 @@ export class CacheConfig {
     // This uses either the `shared-key` input,
     // or the `key` input combined with the `job` key.
 
-    let key = `v0-rust`;
+    let key = core.getInput("prefix-key");
 
     const sharedKey = core.getInput("shared-key");
     if (sharedKey) {
@@ -154,7 +154,16 @@ export class CacheConfig {
     }
     self.workspaces = workspaces;
 
-    self.cachePaths = [CARGO_HOME, ...workspaces.map((ws) => ws.target)];
+    self.cachePaths = [CARGO_HOME];
+    const cacheTargets = core.getInput("cache-targets").toLowerCase();
+    if (cacheTargets === "true") {
+      self.cachePaths.push(...workspaces.map((ws) => ws.target));
+    }
+
+    const cacheDirectories = core.getInput("cache-directories");
+    for (const dir of cacheDirectories.trim().split("\n")) {
+      self.cachePaths.push(dir);
+    }
 
     return self;
   }