fix(cache): adds project's dep versions to cache key

Includes the real version of each dependency of the containing project
in the cache key digest calculation.

Closes #785

src/config/config-set.spec.ts

@@ -489,23 +489,63 @@ describe('babelJestTransformer', () => {
   })
 }) // babelJestTransformer
 
+describe('projectDependencies', () => {
+  const pkg = {
+    optionalDependencies: { opt: '1.2.3' },
+    peerDependencies: { peer: '1.2.4' },
+    devDependencies: { dev: '1.2.5' },
+    dependencies: { std: '1.2.6' },
+  }
+  const realVersions: any = {
+    peer: '0.1.0',
+    dev: '4.3.2',
+    std: '9.10.2',
+  }
+  it('should list all deps with their real version', () => {
+    jest.doMock('peer/package.json', () => ({ version: realVersions.peer }), { virtual: true })
+    jest.doMock('dev/package.json', () => ({ version: realVersions.dev }), { virtual: true })
+    jest.doMock('std/package.json', () => ({ version: realVersions.std }), { virtual: true })
+    const cs = createConfigSet({
+      tsJestConfig: { tsConfig: false } as any,
+      projectPackageJson: pkg,
+    })
+    expect(cs.projectDependencies).toEqual(realVersions)
+    jest.dontMock('peer/package.json')
+    jest.dontMock('dev/package.json')
+    jest.dontMock('std/package.json')
+  })
+}) // projectDependencies
+
 describe('cacheKey', () => {
   it('should be a string', () => {
-    const cs = createConfigSet({ tsJestConfig: { tsConfig: false } as any })
+    const cs = createConfigSet({
+      tsJestConfig: { tsConfig: false } as any,
+      projectDependencies: {
+        opt: '1.2.3',
+        peer: '1.2.4',
+        dev: '1.2.5',
+        std: '1.2.6',
+      },
+    })
     // we tested those and don't want the snapshot to change all the time we upgrade
     const val = cs.jsonValue.value
     delete val.versions
     cs.jsonValue.value = val
     // digest is mocked in src/__mocks__/index.ts
     expect(cs.cacheKey).toMatchInlineSnapshot(
-      `"{\\"digest\\":\\"a0d51ca854194df8191d0e65c0ca4730f510f332\\",\\"jest\\":{\\"__backported\\":true,\\"globals\\":{}},\\"transformers\\":[\\"hoisting-jest-mock@1\\"],\\"tsJest\\":{\\"compiler\\":\\"typescript\\",\\"diagnostics\\":{\\"ignoreCodes\\":[6059,18002,18003],\\"pretty\\":true,\\"throws\\":true},\\"isolatedModules\\":false,\\"transformers\\":[]},\\"tsconfig\\":{\\"declaration\\":false,\\"inlineSourceMap\\":false,\\"inlineSources\\":true,\\"module\\":1,\\"noEmit\\":false,\\"outDir\\":\\"$$ts-jest$$\\",\\"removeComments\\":false,\\"sourceMap\\":true,\\"target\\":1}}"`,
+      '"{\\"digest\\":\\"a0d51ca854194df8191d0e65c0ca4730f510f332\\",\\"jest\\":{\\"__backported\\":true,\\"globals\\":{}},\\"projectDepVersions\\":{\\"dev\\":\\"1.2.5\\",\\"opt\\":\\"1.2.3\\",\\"peer\\":\\"1.2.4\\",\\"std\\":\\"1.2.6\\"},\\"transformers\\":[\\"hoisting-jest-mock@1\\"],\\"tsJest\\":{\\"compiler\\":\\"typescript\\",\\"diagnostics\\":{\\"ignoreCodes\\":[6059,18002,18003],\\"pretty\\":true,\\"throws\\":true},\\"isolatedModules\\":false,\\"transformers\\":[]},\\"tsconfig\\":{\\"declaration\\":false,\\"inlineSourceMap\\":false,\\"inlineSources\\":true,\\"module\\":1,\\"noEmit\\":false,\\"outDir\\":\\"$$ts-jest$$\\",\\"removeComments\\":false,\\"sourceMap\\":true,\\"target\\":1}}"',
     )
   })
 }) // cacheKey
 
 describe('jsonValue', () => {
   it('should create jsonValue based on each config and version', () => {
-    const cs = createConfigSet({ tsJestConfig: { tsConfig: false } as any })
+    const cs = createConfigSet({
+      tsJestConfig: { tsConfig: false } as any,
+      projectDependencies: {
+        'some-module': '1.2.3',
+      },
+    })
     const val = cs.jsonValue.valueOf()
     expect(cs.toJSON()).toEqual(val)
     // it will change each time we upgrade – we tested those in the `version` block
@@ -521,6 +561,9 @@ Object {
     "__backported": true,
     "globals": Object {},
   },
+  "projectDepVersions": Object {
+    "some-module": "1.2.3",
+  },
   "transformers": Array [
     "hoisting-jest-mock@1",
   ],

src/config/config-set.ts

@@ -9,7 +9,7 @@
  * with the complete, object version of it.
  */
 import { LogContexts, Logger } from 'bs-logger'
-import { existsSync, readFileSync } from 'fs'
+import { existsSync, readFileSync, realpathSync } from 'fs'
 import json5 from 'json5'
 import { dirname, isAbsolute, join, normalize, resolve } from 'path'
 import semver from 'semver'
@@ -112,6 +112,41 @@ const toDiagnosticCodeList = (items: any, into: number[] = []): number[] => {
 }
 
 export class ConfigSet {
+  @Memoize()
+  get projectPackageJson(): Record<string, any> {
+    const tsJestRoot = resolve(__dirname, '..', '..')
+    let pkgPath = resolve(tsJestRoot, '..', '..', 'package.json')
+    let exists = existsSync(pkgPath)
+    if (!exists) {
+      if (realpathSync(this.rootDir) === realpathSync(tsJestRoot)) {
+        pkgPath = resolve(tsJestRoot, 'package.json')
+        exists = true
+      } else {
+        this.logger.warn(Errors.UnableToFindProjectRoot)
+      }
+    }
+    return exists ? require(pkgPath) : {}
+  }
+
+  @Memoize()
+  get projectDependencies(): Record<string, string> {
+    const { projectPackageJson: pkg } = this
+    const names = Object.keys({
+      ...pkg.optionalDependencies,
+      ...pkg.peerDependencies,
+      ...pkg.devDependencies,
+      ...pkg.dependencies,
+    })
+    return names.reduce(
+      (map, name) => {
+        const version = getPackageVersion(name)
+        if (version) map[name] = version
+        return map
+      },
+      {} as Record<string, string>,
+    )
+  }
+
   @Memoize()
   get jest(): jest.ProjectConfig {
     const config = backportJestConfig(this.logger, this._jestConfig)
@@ -440,14 +475,16 @@ export class ConfigSet {
     const cacheSuffix = sha1(
       stringify({
         version: this.compilerModule.version,
+        digest: this.tsJestDigest,
+        dependencies: this.projectDependencies,
         compiler: this.tsJest.compiler,
         compilerOptions: this.typescript.options,
         isolatedModules: this.tsJest.isolatedModules,
         diagnostics: this.tsJest.diagnostics,
       }),
     )
     const res = join(this.jest.cacheDirectory, 'ts-jest', cacheSuffix.substr(0, 2), cacheSuffix.substr(2))
-    logger.debug({ cacheDirectory: res }, `will use file caching`)
+    logger.debug({ cacheDirectory: res }, 'will use file caching')
     return res
   }
 
@@ -519,6 +556,7 @@ export class ConfigSet {
 
     return new JsonableValue({
       versions: this.versions,
+      projectDepVersions: this.projectDependencies,
       digest: this.tsJestDigest,
       transformers: this.astTransformers.map(t => `${t.name}@${t.version}`),
       jest,

src/util/messages.ts

@@ -21,6 +21,7 @@ export enum Errors {
   GotUnknownFileTypeWithoutBabel = 'Got a unknown file type to compile (file: {{path}}). To fix this, in your Jest config change the `transform` key which value is `ts-jest` so that it does not match this kind of files anymore.',
   GotUnknownFileTypeWithBabel = 'Got a unknown file type to compile (file: {{path}}). To fix this, in your Jest config change the `transform` key which value is `ts-jest` so that it does not match this kind of files anymore. If you still want Babel to process it, add another entry to the `transform` option with value `babel-jest` which key matches this type of files.',
   ConfigNoModuleInterop = 'If you have issues related to imports, you should consider setting `esModuleInterop` to `true` in your TypeScript configuration file (usually `tsconfig.json`). See https://blogs.msdn.microsoft.com/typescript/2018/01/31/announcing-typescript-2-7/#easier-ecmascript-module-interoperability for more information.',
+  UnableToFindProjectRoot = 'Unable to find the root of the project where ts-jest has been installed.',
 }
 
 /**