feat: go template with cobra and viper

template/go/.gitignore

@@ -4,6 +4,7 @@
 
 ### Go template
 # Binaries for programs and plugins
+bin
 *.exe
 *.exe~
 *.dll
@@ -18,4 +19,3 @@
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
-

template/go/Makefile

@@ -1,13 +1,20 @@
-.PHONY: help
+.PHONY: help image run build
 .DEFAULT_GOAL := help
 
 APP_NAME := {{project-name}}
+APP_PATH=.
 
 # build image
 image:
 	@docker image build -t $(APP_NAME) .
 
-# buildx cross
+# run
+run:
+	@go run $(APP_PATH)/main.go
+
+# build
+build:
+	@mkdir -p bin; go build -trimpath -ldflags="-w -s" -o bin/ $(APP_PATH)
 
 # Show help
 help:

template/go/cmd/root.go

@@ -0,0 +1,64 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/spf13/viper"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var cfgFile string
+
+var rootCmd = &cobra.Command{
+	Use:   "{{project-name}}",
+	Short: "A short desc for the {{project-name}}",
+	Long: `A long desc for the {{project-name}}.
+Such as:
+- Feature1
+- Feature2
+- Feature3
+`,
+}
+
+func Execute() {
+	err := rootCmd.Execute()
+	if err != nil {
+		os.Exit(1)
+	}
+}
+
+func init() {
+	cobra.OnInitialize(initConfig)
+}
+
+// initConfig reads in config file and ENV variables if set.
+func initConfig() {
+	if cfgFile != "" {
+		// Use config file from the flag.
+		viper.SetConfigFile(cfgFile)
+	} else {
+		viper.AddConfigPath("$HOME/.config/blog-go")
+		viper.AddConfigPath("./config/")
+
+		viper.SetConfigName("config")
+		viper.SetConfigType("yaml")
+	}
+
+	// set the default values
+	setDefaultConfig()
+
+	viper.AutomaticEnv() // read in environment variables that match
+
+	// If a config file is found, read it in.
+	if err := viper.ReadInConfig(); err != nil {
+		fmt.Printf("%s\n\n\n", err.Error())
+		_ = rootCmd.Help()
+		os.Exit(1)
+	}
+	fmt.Printf("======== Using config file: %s ========\n", viper.ConfigFileUsed())
+}
+
+func setDefaultConfig() {
+	// Some default values
+}

template/go/go.mod

@@ -1,3 +1,31 @@
 module github.com/{{gh_uname}}/{{project-name}}
 
 go {{go_version}}
+
+require (
+	github.com/spf13/cobra v1.8.0
+	github.com/spf13/viper v1.18.2
+)
+
+require (
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.1.0 // indirect
+	github.com/sagikazarmark/locafero v0.4.0 // indirect
+	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/spf13/afero v1.11.0 // indirect
+	github.com/spf13/cast v1.6.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.9.0 // indirect
+	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
+	golang.org/x/sys v0.15.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

template/go/main.go

@@ -0,0 +1,9 @@
+package main
+
+import (
+	"github.com/{{gh_uname}}/{{project-name}}/cmd"
+)
+
+func main() {
+	cmd.Execute()
+}