✨ Add metadata on the generated sources (#526) (#540)

.codesandbox/ci.json

@@ -1,7 +1,7 @@
 
 
 {
-    "buildCommand": "build",
+    "buildCommand": "build:prod",
     "sandboxes": ["vanilla", "/example"]
   }
 

.travis.yml

@@ -41,11 +41,7 @@ jobs:
     - stage: test
       env: STEP=EXAMPLES_ROLLUP_LEGACY_TYPES
       script:
-        - yarn prebuild
-        - yarn build:publish-types
-        - yarn build:publish-cjs
-        - yarn build:publish-esm
-        - yarn webbuild
+        - yarn build:prod
         - yarn link
         - cd example ;
           yarn --ignore-engines ;
@@ -84,11 +80,7 @@ jobs:
     - stage: deploy
       if: tag =~ ^v\d+\.
       script:
-        - yarn prebuild
-        - yarn build:publish-types
-        - yarn build:publish-cjs
-        - yarn build:publish-esm
-        - yarn webbuild
+        - yarn build:prod
       deploy:
         provider: npm
         email: [email protected]

package.json

@@ -21,8 +21,9 @@
     "build:watch": "tsc -w",
     "build:publish-types": "tsc -p tsconfig.publish.types.json && node ./buildTypes.js",
     "build:publish-cjs": "tsc -p tsconfig.publish.json",
-    "build:publish-esm": "tsc -p tsconfig.publish.json --module es2015 --moduleResolution node --outDir lib/esm && node postbuild/main.js",
+    "build:publish-esm": "tsc -p tsconfig.publish.json --module es2015 --moduleResolution node --outDir lib/esm",
     "webbuild": "browserify lib/fast-check.js --s fastcheck | uglifyjs -cm > lib/bundle.js",
+    "build:prod": "yarn prebuild && yarn build:publish-cjs && yarn build:publish-esm && yarn build:publish-types && yarn webbuild && node postbuild/main.js",
     "watch": "tsc -w",
     "test": "jest --config jest.unit.config.js --coverage",
     "test:watch": "jest --config jest.unit.config.js --watch",

postbuild/main.js

@@ -1,6 +1,12 @@
 // eslint-disable-next-line
+const fs = require('fs');
+// eslint-disable-next-line
+const path = require('path');
+// eslint-disable-next-line
 const replace = require('replace-in-file');
 
+// Append *.js file extension on all local imports
+
 const options = {
   files: 'lib/**/*.js',
   from: [/from '\.(.*)(?<!\.js)'/g, /from "\.(.*)(?<!\.js)"/g],
@@ -14,3 +20,36 @@ for (const { file, hasChanged } of results) {
     console.info(`Extensions added to: ${file}`);
   }
 }
+
+// Fill metas related to the package
+
+// eslint-disable-next-line
+fs.readFile(path.join(__dirname, '../package.json'), (err, data) => {
+  if (err) {
+    // eslint-disable-next-line
+    console.error(err.message);
+    return;
+  }
+
+  const packageVersion = JSON.parse(data.toString()).version;
+
+  const commonJsReplacement = replace.sync({
+    files: 'lib/fast-check-default.js',
+    from: [/__PACKAGE_TYPE__/g, /__PACKAGE_VERSION__/g],
+    to: ['commonjs', packageVersion]
+  });
+  if (commonJsReplacement.length === 1 && commonJsReplacement[0].hasChanged) {
+    // eslint-disable-next-line
+    console.info(`Package details added onto commonjs version`);
+  }
+
+  const moduleReplacement = replace.sync({
+    files: 'lib/esm/fast-check-default.js',
+    from: [/__PACKAGE_TYPE__/g, /__PACKAGE_VERSION__/g],
+    to: ['module', packageVersion]
+  });
+  if (moduleReplacement.length === 1 && moduleReplacement[0].hasChanged) {
+    // eslint-disable-next-line
+    console.info(`Package details added onto module version`);
+  }
+});

src/fast-check-default.ts

@@ -89,6 +89,10 @@ import { Stream, stream } from './stream/Stream';
 import { stringify } from './utils/stringify';
 import { scheduler, Scheduler, SchedulerSequenceItem } from './check/arbitrary/AsyncSchedulerArbitrary';
 
+// Explicit cast into string to avoid to have __type: "__PACKAGE_TYPE__"
+const __type = '__PACKAGE_TYPE__' as string;
+const __version = '__PACKAGE_VERSION__' as string;
+
 // boolean
 // floating point types
 // integer types
@@ -97,6 +101,9 @@ import { scheduler, Scheduler, SchedulerSequenceItem } from './check/arbitrary/A
 // combination of others
 // complex combinations
 export {
+  // meta
+  __type,
+  __version,
   // assess the property
   sample,
   statistics,