Merge pull request #7 from hkdobrev/micromatch

Use micromatcher for pattern matching

Author: hkdobrev

bin/git-run-if-changed.sh

@@ -2,8 +2,8 @@
   "name": "@hkdobrev/run-if-changed",
   "version": "0.2.4",
   "description": "Run a command if a file changes via Git hooks",
-  "bin": "index.js",
-  "main": "index.js",
+  "bin": "run-if-changed.js",
+  "main": "src/runForMatchingPatterns",
   "repository": "https://github.com/hkdobrev/run-if-changed",
   "author": "Haralan Dobrev <hkdobrev@gmail.com>",
   "license": "MIT",
@@ -12,6 +12,7 @@
     "commander": "^2.19.0",
     "cosmiconfig": "^5.0.7",
     "execa": "^1.0.0",
+    "micromatch": "^3.1.10",
     "npm-which": "^3.0.1",
     "string-argv": "^0.1.1"
   },
@@ -26,15 +27,16 @@
     "test": "eslint .",
     "test-ci": "yarn test",
     "preversion": "yarn test",
-    "postversion": "git push --tags && yarn publish . --new-version $npm_package_version && git push && echo \"Successfully released version $npm_package_version!\""
+    "postversion": "git push --tags && yarn publish . --new-version $npm_package_version && git push && echo \"Successfully released version $npm_package_version!\"",
+    "run-if-changed": "./run-if-changed.js"
   },
   "husky": {
     "hooks": {
       "pre-commit": "lint-staged",
-      "post-commit": "./index.js",
-      "post-checkout": "./index.js",
-      "post-merge": "./index.js",
-      "post-rewrite": "./index.js"
+      "post-commit": "yarn run-if-changed",
+      "post-checkout": "yarn run-if-changed",
+      "post-merge": "yarn run-if-changed",
+      "post-rewrite": "yarn run-if-changed"
     }
   },
   "run-if-changed": {
@@ -49,9 +51,6 @@
     ]
   },
   "eslintConfig": {
-    "extends": "airbnb-base",
-    "rules": {
-      "no-console": "off"
-    }
+    "extends": "airbnb-base"
   }
 }

index.js

@@ -0,0 +1,12 @@
+#!/usr/bin/env node
+
+require('./src/cliInit')();
+
+const config = require('./src/configLoad')();
+const changedFiles = require('./src/gitChangedFilesSinceLastHead')();
+
+if (changedFiles.length === 0) {
+  process.exit(0);
+}
+
+require('./src/runForMatchingPatterns')(changedFiles, config);

package.json

@@ -0,0 +1,19 @@
+const execa = require('execa');
+
+function getFilesFromGit() {
+  const { stdout } = execa.sync('git', [
+    'diff-tree',
+    '--name-only',
+    '--no-commit-id',
+    'HEAD@{1}',
+    'HEAD',
+  ]);
+
+  return stdout;
+}
+
+module.exports = function gitChangedFilesSinceLastHead() {
+  const changedFiles = getFilesFromGit();
+
+  return changedFiles.split('\n').filter(file => !!file);
+};

run-if-changed.js

@@ -0,0 +1,5 @@
+const micromatch = require('micromatch');
+
+module.exports = function matcher(changedFiles, patterns) {
+  return micromatch.some(changedFiles, patterns);
+};

src/gitChangedFilesSinceLastHead.js

@@ -0,0 +1,17 @@
+const execa = require('execa');
+const findBinary = require('./findBinary');
+
+function runBinary(command) {
+  const { binaryPath, args } = command;
+  const result = execa(binaryPath, args);
+  result.stdout.pipe(process.stdout);
+  result.stderr.pipe(process.stderr);
+}
+
+function normaliseCommands(commands) {
+  return Array.isArray(commands) ? commands : [commands].filter(x => !!x);
+}
+
+module.exports = function runCommands(commands) {
+  normaliseCommands(commands).map(findBinary).forEach(runBinary);
+};

src/matcher.js

@@ -0,0 +1,8 @@
+const matcher = require('./matcher');
+const runCommands = require('./runCommands');
+
+module.exports = function runForMatchingPatterns(files, config) {
+  Object.entries(config)
+    .filter(([pattern]) => matcher(files, [pattern]))
+    .forEach(([, commands]) => runCommands(commands));
+};

src/runAll.js

@@ -1508,7 +1508,7 @@ matcher@^1.0.0:
   dependencies:
     escape-string-regexp "^1.0.4"
 
-micromatch@^3.1.8:
+micromatch@^3.1.10, micromatch@^3.1.8:
   version "3.1.10"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
   integrity sha512-MWikgl9n9M3w+bpsY3He8L+w9eF9338xRl8IAO5viDizwSzziFEyUzo2xrrloB64ADbTf8uA8vRqqttDTOmccg==