Replace Travis CI with GitHub Actions

- Add CI workflow (lint + coverage) triggered on pushes to main and all PRs
- Update CodeQL workflow: master→main, upgrade actions to v3/v4, remove boilerplate
- Replace Travis badge with GitHub Actions badge in README
- Remove .travis.yml and codeclimate-test-reporter dependency

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ryu1kn

.github/workflows/ci.yml

@@ -0,0 +1,19 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+      - run: npm ci
+      - run: npm run lint
+      - run: npm run coverage

.github/workflows/codeql-analysis.yml

@@ -1,22 +1,10 @@
-# For most projects, this workflow file will not need changing; you simply need
-# to commit it to your repository.
-#
-# You may wish to alter this file to override the set of languages analyzed,
-# or to provide custom queries or build logic.
-#
-# ******** NOTE ********
-# We have attempted to detect the languages in your repository. Please check
-# the `language` matrix defined below to confirm you have the correct set of
-# supported CodeQL languages.
-#
-name: "CodeQL"
+name: CodeQL
 
 on:
   push:
-    branches: [ master ]
+    branches: [main]
   pull_request:
-    # The branches below must be a subset of the branches above
-    branches: [ master ]
+    branches: [main]
   schedule:
     - cron: '26 15 * * 2'
 
@@ -28,40 +16,19 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        language: [ 'javascript' ]
-        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
-        # Learn more:
-        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
+        language: ['javascript']
 
     steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
+      - name: Checkout repository
+        uses: actions/checkout@v4
 
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      with:
-        languages: ${{ matrix.language }}
-        # If you wish to specify custom queries, you can do so here or in a config file.
-        # By default, queries listed here will override any specified in a config file.
-        # Prefix the list here with "+" to use these queries and those in the config file.
-        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}
 
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v3
 
-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
-
-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
-
-    #- run: |
-    #   make bootstrap
-    #   make release
-
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3

.travis.yml

@@ -17,7 +17,6 @@ __*/**/*
 .nvmrc
 .nyc_output/**/*
 .nycrc
-.travis.yml
 .mocharc.json
 out/**/*
 node_modules/**/*

.vscodeignore

@@ -1,4 +1,4 @@
-[![Build Status](https://travis-ci.org/ryu1kn/vscode-partial-diff.svg?branch=master)](https://travis-ci.org/ryu1kn/vscode-partial-diff)
+[![CI](https://img.shields.io/github/actions/workflow/status/ryu1kn/vscode-partial-diff/ci.yml?branch=main&label=CI)](https://github.com/ryu1kn/vscode-partial-diff/actions/workflows/ci.yml)
 [![Code Climate](https://codeclimate.com/github/ryu1kn/vscode-partial-diff/badges/gpa.svg)](https://codeclimate.com/github/ryu1kn/vscode-partial-diff)
 
 # Partial Diff