Implement gnopls version cmd

cmd/cmd.go

@@ -20,6 +20,7 @@ func GnoplsCmd() *cobra.Command {
  }
 
  cmd.CompletionOptions.DisableDefaultCmd = true
+ cmd.AddCommand(CmdVersion())
 
  return cmd
 }

cmd/version.go

@@ -0,0 +1,22 @@
+package cmd
+
+import (
+ "fmt"
+
+ "github.com/harry-hov/gnopls/internal/version"
+ "github.com/spf13/cobra"
+)
+
+func CmdVersion() *cobra.Command {
+ cmd := &cobra.Command{
+ Use: "version",
+ Short: "print the gnopls version information",
+ Args: cobra.ExactArgs(0),
+ RunE: func(cmd *cobra.Command, args []string) error {
+ fmt.Println(version.GetVersion(cmd.Context()))
+ return nil
+ },
+ }
+
+ return cmd
+}

go.mod

@@ -3,10 +3,12 @@ module github.com/harry-hov/gnopls
 go 1.21.1
 
 require (
+ github.com/google/go-github v17.0.0+incompatible
  github.com/spf13/cobra v1.5.0
 )
 
 require (
+ github.com/google/go-querystring v1.1.0 // indirect
  github.com/inconshreveable/mousetrap v1.0.0 // indirect
  github.com/spf13/pflag v1.0.5 // indirect
 )

go.sum

@@ -1,3 +1,7 @@
+github.com/google/go-github v17.0.0+incompatible h1:N0LgJ1j65A7kfXrZnUDaYCs/Sf4rEjNlfyDHW9dolSY=
+github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+umXrS52loVEgC2AApnigrVQ=
+github.com/google/go-querystring v1.1.0 h1:AnCroh3fv4ZBgVIf1Iwtovgjaw/GiKJo8M8yD/fhyJ8=
+github.com/google/go-querystring v1.1.0/go.mod h1:Kcdr2DB4koayq7X8pmAG4sNG59So17icRSOU623lUBU=
 github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/spf13/cobra v1.5.0 h1:X+jTBEBqF0bHN+9cSMgmfuvv2VHJ9ezmFNf9Y/XstYU=

internal/version/version.go

@@ -0,0 +1,40 @@
+package version
+
+import (
+ "context"
+
+ "github.com/google/go-github/github"
+)
+
+const versionUnknown = "v0.0.0-unknown"
+
+var Version string = versionUnknown
+
+func getLatestReleaseTag(ctx context.Context) (string, error) {
+ latest, _, err := github.
+ NewClient(nil).
+ Repositories.
+ GetLatestRelease(ctx, "harry-hov", "gnopls")
+ if err != nil {
+ return "", err
+ }
+
+ if latest.TagName == nil {
+ return "", nil
+ }
+
+ return *latest.TagName, nil
+}
+
+func GetVersion(ctx context.Context) string {
+ if Version != versionUnknown {
+ return Version
+ }
+
+ tag, err := getLatestReleaseTag(ctx)
+ if err != nil {
+ return Version
+ }
+
+ return tag
+}