fix: update gitignore on init (#71)

* fix: update .gitignore on init

* chore: better gitignore parsing

cli/package.json

@@ -41,6 +41,7 @@
         "lodash": "^4.17.11",
         "moment": "^2.24.0",
         "parse-author": "^2.0.0",
+        "parse-gitignore": "^1.0.1",
         "prop-types": "^15.7.2",
         "react": "^16.8.6",
         "react-dom": "^16.8.6",

cli/src/commands/init.js

@@ -2,9 +2,47 @@ const { reporter, exec } = require('@dhis2/cli-helpers-engine')
 const path = require('path')
 const fs = require('fs-extra')
 const chalk = require('chalk')
+const gitignore = require('parse-gitignore')
 
 const makePaths = require('../lib/paths')
 
+const ignorePatterns = ['node_modules', '.d2', 'src/locales']
+
+const parseGitignore = gitignoreFile => {
+    const newSection = { name: 'DHIS2 Platform', patterns: [] }
+    if (fs.existsSync(gitignoreFile)) {
+        const content = fs.readFileSync(gitignoreFile)
+        const parsed = gitignore.parse(content)
+
+        const existingSection = parsed.sections.filter(
+            section => section.name === newSection.name
+        )[0]
+
+        if (existingSection) {
+            newSection.patterns = existingSection.patterns
+        }
+
+        ignorePatterns.forEach(pattern => {
+            if (!parsed.patterns.includes(pattern)) {
+                newSection.patterns.push(pattern)
+            }
+        })
+
+        if (existingSection) {
+            existingSection.patterns = newSection.patterns
+        } else {
+            if (newSection.patterns.length) {
+                parsed.sections.push(newSection)
+            }
+        }
+
+        return parsed.sections
+    }
+
+    newSection.patterns = ignorePatterns
+    return [newSection]
+}
+
 const handler = async ({ force, name, cwd, lib }) => {
     cwd = cwd || process.cwd()
     cwd = path.join(cwd, name)
@@ -135,6 +173,13 @@ const handler = async ({ force, name, cwd, lib }) => {
         }
     }
 
+    const gitignoreFile = path.join(paths.base, '.gitignore')
+    reporter.info('Updating .gitignore...')
+    fs.writeFileSync(
+        gitignoreFile,
+        gitignore.stringify(parseGitignore(gitignoreFile))
+    )
+
     reporter.print('')
     reporter.info('SUCCESS!')
     const cdCmd = name != '.' ? `cd ${name} && ` : ''

yarn.lock

@@ -6595,6 +6595,11 @@ parse-author@^2.0.0:
   dependencies:
     author-regex "^1.0.0"
 
+parse-gitignore@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/parse-gitignore/-/parse-gitignore-1.0.1.tgz#8b9dc57f17b810d495c5dfa62eb07caffe7758c7"
+  integrity sha512-UGyowyjtx26n65kdAMWhm6/3uy5uSrpcuH7tt+QEVudiBoVS+eqHxD5kbi9oWVRwj7sCzXqwuM+rUGw7earl6A==
+
 parse-json@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-4.0.0.tgz#be35f5425be1f7f6c747184f98a788cb99477ee0"