move from Travis CI to GitHub Actions

.github/workflows/c.yml

@@ -0,0 +1,19 @@
+name: C
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: make clean
+      run: make clean
+    - name: make
+      run: make

.github/workflows/coverity.yml

@@ -0,0 +1,15 @@
+name: Coverity Scan
+
+on:
+  push:
+    branches: [ main ]
+
+jobs:
+  coverity:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: vapier/coverity-scan-action@v1
+      with:
+        email: ${{ secrets.COVERITY_SCAN_EMAIL }}
+        token: ${{ secrets.COVERITY_SCAN_TOKEN }}

.travis.yml

@@ -1,24 +0,0 @@
-language: c
-
-env:
-  global:
-   # The next declaration is the encrypted COVERITY_SCAN_TOKEN, created
-   #   via the "travis encrypt" command using the project repo's public key
-   - secure: "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"
-
-before_install:
-  - echo -n | openssl s_client -connect scan.coverity.com:443 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | sudo tee -a /etc/ssl/certs/ca-
-
-addons:
-  coverity_scan:
-    project:
-      name: "0intro/libtask"
-      description: "Build submitted via Travis CI"
-    notification_email: 0intro@gmail.com
-    build_command_prepend: "make clean"
-    build_command: "make"
-    branch_pattern: master
-
-script:
-  - make clean
-  - make

README.md

@@ -1,7 +1,7 @@
 Libtask: a Coroutine Library for C and Unix
 ===========================================
 
-[![Build Status](https://travis-ci.org/0intro/libtask.svg?branch=master)](https://travis-ci.org/0intro/libtask)
+[![Build Status](https://github.com/0intro/libtask/workflows/C/badge.svg)](https://github.com/0intro/libtask/actions/workflows/c.yml)
 [![Coverity Scan Status](https://scan.coverity.com/projects/5467/badge.svg)](https://scan.coverity.com/projects/5467)
 
 Libtask is a simple coroutine library.  It runs on Linux (ARM, MIPS, and x86),