fix: removes turbo cache step

src/index.ts

@@ -310,43 +310,8 @@ export class TurborepoProject extends typescript.TypeScriptProject {
         },
       }
 
-      // https://github.com/vercel/turborepo/issues/451#issuecomment-1002409285
-      const turboCacheKeyChunks = [
-        'turbo',
-        exp('runner.os'),
-        'build',
-        exp('github.ref_name'),
-        exp('github.sha'),
-      ]
-
-      // Turborepo cache
-      // https://turborepo.org/docs/features/caching
-      const turboCacheStep: JobStep = {
-        name: 'Cache Turborepo',
-        uses: 'actions/cache@v2',
-        with: {
-          'path': TURBO_CACHE_DIR,
-          // I think turbo cache is not specific to environment, so we want to cache all of it.
-          //
-          // TODO: How do prune cache eventually?
-          'key': turboCacheKeyChunks.join('-'),
-          'restore-keys':
-            Array(turboCacheKeyChunks.length)
-              .fill(0)
-              .map((_, i) => i)
-              .reverse()
-              .map((chunks) => [...turboCacheKeyChunks.slice(0, chunks), undefined].join('-'))
-              .join('\n'),
-        },
-      }
-
       this.buildWorkflow?.addPostBuildSteps(
         nodeModulesCacheStep,
-
-        // run turbo cache in the main build, to create the cache on the first run
-        // even though we are not caching anything on this step. This avoids a race condition
-        // in matrix, where each matrix job then tries to reserve cache key
-        turboCacheStep,
       )
 
       this.buildWorkflow?.addPostBuildJob('turbo', {
@@ -360,7 +325,6 @@ export class TurborepoProject extends typescript.TypeScriptProject {
           },
           this.setupNodeStep,
           nodeModulesCacheStep,
-          turboCacheStep,
           {
             name: 'Build',
             run: `npx turbo run build --scope=${matrixScope} --include-dependencies --cache-dir="${TURBO_CACHE_DIR}"`,