CI: migrate from Travis to GitHub Actions

.github/workflows/shellcheck.yml

@@ -0,0 +1,31 @@
+name: shellcheck
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+  workflow_dispatch:
+
+jobs:
+  shellcheck:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: ShellCheck
+        uses: ludeeus/[email protected]
+        #with:
+          # A space separated list of additional filename to check
+          #additional_files: # optional, default is 
+          # Paths to ignore when running ShellCheck
+          #ignore: # optional, default is 
+          # Minimum severity of errors to consider. Options: [error, warning, info, style]
+          #severity: # optional, default is 
+          # Run shellcheck on _all_ files at once, instead of one at a time
+          #check_together: # optional, default is 
+          # Directory to be searched for files. Defaults to .
+          #scandir: # optional, default is .
+          # Set to true to skip using problem-matcher
+          #disable_matcher: # optional, default is false
+          # Output format (checkstyle, diff, gcc, json, json1, quiet, tty)
+          #format: # optional, default is gcc

.github/workflows/test.yml

@@ -0,0 +1,40 @@
+name: test
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+  workflow_dispatch:
+
+jobs:
+  highlight_test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install build dependencies
+        run: sudo apt-get install -y autoconf automake autopoint gcc gettext git groff make pkg-config texinfo libncurses5-dev
+
+      - name: Clone and configure GNU nano
+        run: |
+          git clone --depth 100 git://git.savannah.gnu.org/nano.git
+          cd nano
+          ./autogen.sh
+          ./configure --prefix=/usr
+          cd -
+
+      - name: Build and install nano
+        run: |
+          cd nano
+          make -j
+          sudo make install
+          cd -
+          nano --version
+
+      - name: Test highlighting files
+        run: |
+          mkdir -p ~/.nano/
+          cp -al *.nanorc ~/.nano/
+          TERM=xterm timeout 1s nano --rcfile ./nanorc >/dev/null 2>error.txt || true
+          grep -v -e "Received SIGHUP or SIGTERM" -e "Too many errors from stdin" error.txt && false
+          echo "All seems good!"

readme.md

@@ -1,5 +1,8 @@
 # Improved Nano Syntax Highlighting Files
 
+[![shellcheck](https://github.com/scopatz/nanorc/actions/workflows/shellcheck.yml/badge.svg)](https://github.com/scopatz/nanorc/actions/workflows/shellcheck.yml)
+[![test](https://github.com/scopatz/nanorc/actions/workflows/test.yml/badge.svg)](https://github.com/scopatz/nanorc/actions/workflows/test.yml)
+
 This repository holds ``{lang}.nanorc`` files that have improved definitions of syntax highlighting for various languages.
 
 ## Installation