fix(version): plumb goreleaser ldflag into cobra Version

The cobra root command had `Version: "1.0.0"` hardcoded, so
`git-context --version` always reported 1.0.0 regardless of which
release was installed. .goreleaser.yml already injects the right
value via `-X main.version={{.Version}}`, but main.go had no
matching `version` variable for the ldflag to land in, and even if
it did, cmd/root.go wouldn't see it.

Declare `var version = "dev"` in main.go so the ldflag has a target,
expose `cmd.SetVersion` to overwrite the cobra Version field at
startup, and call it from main(). Local `go install` / `go build`
without ldflags continues to report "dev"; goreleaser builds report
the real tag.

Signed-off-by: Andre Nogueira <aanogueira@protonmail.com>

Author: aanogueira

cmd/root.go

@@ -16,7 +16,15 @@ var rootCmd = &cobra.Command{
 
 Switch between different git identities (work, personal, school, etc.) with a single command.
 Profiles are stored in ~/.config/git-context/config.yaml`,
-	Version: "1.0.0",
+	Version: "dev",
+}
+
+// SetVersion overrides the version reported by `git-context --version`.
+// Called from main with the value goreleaser injects via ldflag.
+func SetVersion(v string) {
+	if v != "" {
+		rootCmd.Version = v
+	}
 }
 
 var initCmd = &cobra.Command{

main.go

@@ -7,7 +7,14 @@ import (
 	"github.com/aanogueira/git-context/cmd"
 )
 
+// version is set at build time via goreleaser's
+// `-X main.version={{.Version}}` ldflag. Defaults to "dev" for local
+// `go build` / `go install` invocations.
+var version = "dev"
+
 func main() {
+	cmd.SetVersion(version)
+
 	if err := cmd.Execute(); err != nil {
 		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
 		os.Exit(1)