fix: Don't mix generated declaration files with ts source files.

TypeScript seems to get confused when a .d.ts and a .ts file of the same
basename are in the same directory. This causes a consuming project to
think it needs to compile the *.ts files that are imported from the
index.d.ts file.

Also did some other maintainance while I was here:
* use yarn instead of npm for script execution.
* enable sourcemaps so consuming projects will see the right source when
  navigating code and so debugging sessions can navigate the typescript code.
* Update engine support to exlude node 11 now that 12 is released.

Author: chriseppstein

.gitignore

@@ -1,5 +1,6 @@
 node_modules
 tmp
+lib
 *.js
 *.d.ts
-!types/
+!types/

package.json

@@ -5,22 +5,22 @@
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
   "files": [
-    "lib"
+    "lib",
+    "src"
   ],
   "scripts": {
-    "test": "npm run test:js",
+    "test": "yarn run test:js",
     "test:js": "mocha --require ts-node/register tests/*-test.ts",
     "test:js:debug": "mocha debug --require ts-node/register tests/*-test.ts",
-    "build": "tsc",
-    "prepublish": "tsc"
+    "build": "tsc --build tsconfig.publish.json",
+    "prepublish": "tsc --build tsconfig.publish.json"
   },
   "keywords": [
     "broccoli"
   ],
   "author": "Stefan Penner, David J. Hamilton, Chad Hietala",
   "license": "MIT",
   "dependencies": {
-    "@types/symlink-or-copy": "^1.2.0",
     "heimdalljs-logger": "^0.1.7",
     "object-assign": "^4.1.0",
     "path-posix": "^1.0.0",
@@ -31,6 +31,7 @@
     "@types/fs-extra": "^5.0.4",
     "@types/mocha": "^5.2.5",
     "@types/node": "^10.12.21",
+    "@types/symlink-or-copy": "^1.2.0",
     "chai": "^3.3.0",
     "fs-extra": "^1.0.0",
     "mocha": "^2.3.3",
@@ -39,7 +40,7 @@
     "walk-sync": "^0.3.1"
   },
   "engines": {
-    "node": "6.* || 8.* || >= 10.*"
+    "node": "6.* || 8.* || 10.* || >= 12.*"
   },
   "repository": {
     "type": "git",

lib/entry.ts renamed to src/entry.ts

@@ -1,6 +1,6 @@
 import fs = require('fs-extra');
 import chai = require('chai');
-import Entry from '../lib/entry';
+import Entry from '../src/entry';
 
 const { expect } = chai;
 const FIXTURE_DIR = 'fixture';

lib/index.ts renamed to src/index.ts

@@ -2,8 +2,8 @@ import fs = require('fs-extra');
 import path = require('path');
 import chai = require('chai');
 import walkSync = require('walk-sync');
-import FSTree  = require('../lib/index');
-import Entry from '../lib/entry';
+import FSTree  = require('../src/index');
+import Entry from '../src/entry';
 
 const { expect } = chai;
 const context = describe;

lib/util.ts renamed to src/util.ts

@@ -4,8 +4,8 @@ import {
   basename,
   computeImpliedEntries,
   sortAndExpand
-} from '../lib/util';
-import Entry from '../lib/entry';
+} from '../src/util';
+import Entry from '../src/entry';
 
 const { expect } = chai;
 

tests/entry-test.ts

@@ -0,0 +1,19 @@
+{
+  "compilerOptions": {
+    "composite": true,
+    "rootDir": "src",
+    "outDir": "lib",
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "strict": true,
+    "moduleResolution": "node",
+    "module": "commonjs",
+    "target": "es5",
+    "paths": {
+      "*": ["types/*"]
+    },
+    "baseUrl": "."
+  },
+  "include": ["src"]
+}

tests/fs-tree-test.ts

@@ -294,9 +294,9 @@ type-detect@^1.0.0:
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-1.0.0.tgz#762217cc06db258ec48908a1298e8b95121e8ea2"
 
 typescript@^3.3.3:
-  version "3.3.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.3.tgz#f1657fc7daa27e1a8930758ace9ae8da31403221"
-  integrity sha512-Y21Xqe54TBVp+VDSNbuDYdGw0BpoR/Q6wo/+35M8PAU0vipahnyduJWirxxdxjsAkS7hue53x2zp8gz7F05u0A==
+  version "3.4.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.4.5.tgz#2d2618d10bb566572b8d7aad5180d84257d70a99"
+  integrity sha512-YycBxUb49UUhdNMU5aJ7z5Ej2XGmaIBL0x34vZ82fn3hGvD+bgrMrVDpatgz2f7YxUMJxMkbWxJZeAvDxVe7Vw==
 
 walk-sync@^0.3.1:
   version "0.3.4"