ci: add backwards compatibility tests (#23)

.github/workflows/back-compat-pr.yml

@@ -0,0 +1,43 @@
+name: back-compat PR
+
+on:
+  pull_request:
+    paths:
+      - "go.*"
+      - "**/*.go"
+      - ".github/workflows/*.yml"
+
+permissions:
+  contents: read
+
+env:
+  GO_VERSION: '1.22.5'
+
+jobs:
+  check-back-compat:
+    name: build
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: ${{ env.GO_VERSION }}
+    - name: build head
+      run: |
+        go build -o omm_head
+        cp omm_head /var/tmp
+    - uses: actions/checkout@v4
+      with:
+        ref: main
+    - name: build main
+      run: |
+        go build -o omm_main
+        cp omm_main /var/tmp
+    - name: Run last version
+      run: |
+        /var/tmp/omm_main --db-path=/var/tmp/throwaway.db 'test: a task from main'
+    - name: Run current version
+      run: |
+        /var/tmp/omm_head --db-path=/var/tmp/throwaway.db 'test: a task from PR HEAD'
+        /var/tmp/omm_head --db-path=/var/tmp/throwaway.db tasks

.github/workflows/back-compat.yml

@@ -0,0 +1,41 @@
+name: back-compat
+
+on:
+  push:
+    branches: [ "main" ]
+
+permissions:
+  contents: read
+
+env:
+  GO_VERSION: '1.22.5'
+
+jobs:
+  check-back-compat:
+    name: build
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 2
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: ${{ env.GO_VERSION }}
+    - name: build head
+      run: |
+        go build -o omm_head
+        cp omm_head /var/tmp
+        rm omm_head
+    - run: git checkout HEAD~1
+    - name: build main
+      run: |
+        go build -o omm_prev
+        cp omm_prev /var/tmp
+    - name: Run last version
+      run: |
+        /var/tmp/omm_prev --db-path=/var/tmp/throwaway.db 'test: a task from previous commit'
+    - name: Run current version
+      run: |
+        /var/tmp/omm_head --db-path=/var/tmp/throwaway.db 'test: a task from main HEAD'
+        /var/tmp/omm_head --db-path=/var/tmp/throwaway.db tasks

.github/workflows/build.yml

@@ -33,3 +33,8 @@ jobs:
       uses: golangci/golangci-lint-action@v6
       with:
         version: v1.58
+    - name: run omm
+      run: |
+        go build .
+        ./omm 'test: a task'
+        ./omm tasks

cmd/root.go

@@ -50,7 +50,7 @@ var (
 	updateContents string
 )
 
-func Execute(version string) {
+func Execute(version string) error {
 	rootCmd, err := NewRootCommand()
 
 	rootCmd.Version = version
@@ -59,7 +59,7 @@ func Execute(version string) {
 		os.Exit(1)
 	}
 
-	_ = rootCmd.Execute()
+	return rootCmd.Execute()
 }
 
 func setupDB(dbPathFull string) (*sql.DB, error) {

main.go

@@ -1,8 +1,10 @@
 package main
 
 import (
-	"github.com/dhth/omm/cmd"
+	"os"
 	"runtime/debug"
+
+	"github.com/dhth/omm/cmd"
 )
 
 var (
@@ -17,5 +19,8 @@ func main() {
 			v = info.Main.Version
 		}
 	}
-	cmd.Execute(v)
+	err := cmd.Execute(v)
+	if err != nil {
+		os.Exit(1)
+	}
 }