Merge pull request #2 from azz/prettier-config

feat: respect .prettierrc and .prettierignore

.eslintrc.json

@@ -5,6 +5,9 @@
   "env": {
     "es6": true
   },
+  "globals": {
+    "process": true
+  },
   "rules": {
     "curly": ["error"],
     "prefer-const": ["error"],

README.md

@@ -25,6 +25,16 @@ Or with `yarn`:
 yarn add --dev prettier-tslint
 ```
 
+## Confituration
+
+`prettier-tslint` find and will respect:
+
+* `prettier`'s `.prettierrc`, or any other config file such as `package.json`.
+* `prettier`'s `.prettierignore` file.
+* `tslint`'s `tslint.json`
+
+`prettier-tslint` has no additional configuration.
+
 ## CLI
 
 ```bash

package.json

@@ -12,6 +12,8 @@
   ],
   "dependencies": {
     "@std/esm": "^0.11.3",
+    "globby": "^6.1.0",
+    "ignore": "^3.3.5",
     "minimist": "^1.2.0",
     "tslint": "^5.7.0"
   },

src/expand-glob.js

@@ -0,0 +1,9 @@
+import globby from "globby";
+
+const expandGlob = glob => {
+  return globby.sync(glob, {
+    dot: true,
+  });
+};
+
+export default expandGlob;

src/filter-ignored.js

@@ -0,0 +1,15 @@
+import fs from "fs";
+import path from "path";
+import ignore from "ignore";
+
+const filterIgnored = filePaths => {
+  const ignorePath = path.resolve(process.cwd(), ".prettierignore");
+  if (fs.existsSync(ignorePath)) {
+    return ignore()
+      .add(fs.readFileSync(ignorePath, "utf8"))
+      .filter(filePaths);
+  }
+  return filePaths;
+};
+
+export default filterIgnored;

src/index.js

@@ -1,19 +1,26 @@
 import fs from "fs";
 import minimist from "minimist";
 
+import expandGlob from "./expand-glob";
+import filterIgnored from "./filter-ignored";
 import runTsLint from "./run-tslint";
 import runPrettier from "./run-prettier";
 
-const format = filepath => {
-  runPrettier(filepath);
-  runTsLint(filepath);
+const format = filePath => {
+  runPrettier(filePath);
+  runTsLint(filePath);
+};
+
+const formatFiles = filePattern => {
+  const files = filterIgnored(expandGlob(filePattern));
+  files.forEach(format);
 };
 
 const cliOpts = {};
 
 export const cli = argv => {
   const args = minimist(argv, cliOpts);
-  args._.forEach(format);
+  args._.forEach(formatFiles);
 };
 
 export default format;

src/run-prettier.js

@@ -2,8 +2,9 @@ import fs from "fs";
 import prettier from "prettier";
 
 const runPrettier = filepath => {
+  const config = prettier.resolveConfig.sync(filepath);
   const code = fs.readFileSync(filepath, "utf8");
-  const output = prettier.format(code, { filepath });
+  const output = prettier.format(code, Object.assign({ filepath }, config));
   fs.writeFileSync(filepath, output);
 };
 

yarn.lock

@@ -931,6 +931,16 @@ globby@^5.0.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
+globby@^6.1.0:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/globby/-/globby-6.1.0.tgz#f5a6d70e8395e21c858fb0489d64df02424d506c"
+  dependencies:
+    array-union "^1.0.1"
+    glob "^7.0.3"
+    object-assign "^4.0.1"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
 graceful-fs@^4.1.2, graceful-fs@^4.1.6:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
@@ -1037,7 +1047,7 @@ iconv-lite@^0.4.17:
   version "0.4.19"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
 
-ignore@^3.3.3:
+ignore@^3.3.3, ignore@^3.3.5:
   version "3.3.5"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.5.tgz#c4e715455f6073a8d7e5dae72d2fc9d71663dba6"