feat: Add version print

pkg/version/verflag/verflag.go

@@ -0,0 +1,48 @@
+// MIT License
+//
+// Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package verflag
+
+import (
+	"fmt"
+	"os"
+
+	"git.vinchent.xyz/vinchent/howmuch/pkg/version"
+	"github.com/spf13/pflag"
+)
+
+const versionFlagName = "version"
+
+var doPrint *bool
+
+func AddFlags(fs *pflag.FlagSet) {
+	doPrint = fs.BoolP("version", "v", true, "Print version and exit")
+	// By default, set to false
+	*doPrint = false
+}
+
+func PrintVersion() {
+	fmt.Printf("%s\n", version.Get().String())
+	if *doPrint {
+		os.Exit(0)
+	}
+}

pkg/version/version.go

@@ -0,0 +1,85 @@
+// MIT License
+//
+// Copyright (c) 2024 vinchent <vinchent@vinchent.xyz>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package version
+
+import (
+	"encoding/json"
+	"fmt"
+	"runtime"
+
+	"github.com/gosuri/uitable"
+)
+
+// Version info format
+var (
+	GitVersion = "v0.0.0-master+$Format:%h$"
+	// BuildDate is the output of $(date -u + '%Y-%m-%dT%H:%M:%SZ')
+	BuildDate = "1970-01-01T00:00:00Z"
+	// GitCommit is the SHA1
+	GitCommit = "$Format:%H$"
+	// GitTreeState clean or dirty
+	GitTreeState = ""
+)
+
+type Info struct {
+	GitVersion   string `json:"git_version"`
+	GitCommit    string `json:"git_commit"`
+	GitTreeState string `json:"git_tree_state"`
+	BuildDate    string `json:"build_date"`
+	GoVersion    string `json:"go_version"`
+	Compiler     string `json:"compiler"`
+	Platform     string `json:"platform"`
+}
+
+func (info Info) String() string {
+	table := uitable.New()
+	table.RightAlign(0)
+	table.MaxColWidth = 80
+	table.Separator = " "
+	table.AddRow("git version:", info.GitVersion)
+	table.AddRow("git commit:", info.GitCommit)
+	table.AddRow("git tree state:", info.GitTreeState)
+	table.AddRow("build date:", info.BuildDate)
+	table.AddRow("go version:", info.GoVersion)
+	table.AddRow("compiler:", info.Compiler)
+	table.AddRow("platform:", info.Platform)
+
+	return table.String()
+}
+
+func (info Info) JSON() string {
+	s, _ := json.Marshal(info)
+	return string(s)
+}
+
+func Get() Info {
+	return Info{
+		GitVersion:   GitVersion,
+		GitCommit:    GitCommit,
+		GitTreeState: GitTreeState,
+		BuildDate:    BuildDate,
+		GoVersion:    runtime.Version(),
+		Compiler:     runtime.Compiler,
+		Platform:     fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH),
+	}
+}