feat(config): dynamically set version based on environment

Makefile

@@ -146,4 +146,4 @@ endif
 	chmod a+x $(GOPATH)/bin/zombienet
 
 zombienet-test: install install-zombienet
-	zombienet test -p native zombienet_tests/functional/0001-basic-network.zndsl
+	zombienet test -p native zombienet_tests/functional/0001-basic-network.zndsl

cmd/gossamer/commands/version.go

@@ -6,8 +6,6 @@ package commands
 import (
 	"fmt"
 
-	cfg "github.com/ChainSafe/gossamer/config"
-
 	"github.com/spf13/cobra"
 )
 
@@ -17,7 +15,7 @@ var VersionCmd = &cobra.Command{
 	Short: "gossamer version",
 	Long:  `gossamer version`,
 	RunE: func(cmd *cobra.Command, args []string) error {
-		fmt.Printf("%s version %s\n", cfg.DefaultSystemName, cfg.DefaultSystemVersion)
+		fmt.Printf("%s version %s\n", config.System.SystemName, config.System.SystemVersion)
 		return nil
 	},
 }

config/config.go

@@ -61,7 +61,7 @@ const (
 	// DefaultSystemName is the default system name
 	DefaultSystemName = "Gossamer"
 	// DefaultSystemVersion is the default system version
-	DefaultSystemVersion = "0.9.0"
+	DefaultSystemVersion = "0.0.0"
 )
 
 // DefaultRPCModules the default RPC modules
@@ -402,7 +402,7 @@ func DefaultConfig() *Config {
 		},
 		System: &SystemConfig{
 			SystemName:    DefaultSystemName,
-			SystemVersion: DefaultSystemVersion,
+			SystemVersion: getFullVersion(),
 		},
 	}
 }
@@ -483,7 +483,7 @@ func DefaultConfigFromSpec(nodeSpec *genesis.Genesis) *Config {
 		},
 		System: &SystemConfig{
 			SystemName:    DefaultSystemName,
-			SystemVersion: DefaultSystemVersion,
+			SystemVersion: getFullVersion(),
 		},
 	}
 }

config/version.go

@@ -0,0 +1,52 @@
+// Copyright 2024 ChainSafe Systems (ON)
+// SPDX-License-Identifier: LGPL-3.0-only
+
+package config
+
+import (
+	"fmt"
+	"runtime/debug"
+)
+
+// Sets the numeric Gossamer version here
+const (
+	VersionMajor = 0
+	VersionMinor = 9
+	VersionPatch = 0
+	VersionMeta  = "unstable"
+)
+
+// Attempts to get a Git commit hash
+var GitCommit = func() string {
+	if info, ok := debug.ReadBuildInfo(); ok {
+		for _, setting := range info.Settings {
+			if setting.Key == "vcs.revision" {
+				return setting.Value
+			}
+		}
+	}
+	return ""
+}()
+
+// Holds a text representation of the Gossamer version
+var Version = func() string {
+	if VersionMeta != "stable" {
+		return getFullVersion()
+	} else {
+		return getStableVersion()
+	}
+}()
+
+// Gets a verbose, long version string, e.g., 0.9.0-unstable-e41617ba
+func getFullVersion() string {
+	version := getStableVersion() + "-" + VersionMeta
+	if len(GitCommit) >= 8 {
+		version += "-" + GitCommit[:8]
+	}
+	return version
+}
+
+// Gets a short, stable version string, e.g., 0.9.0
+func getStableVersion() string {
+	return fmt.Sprintf("%d.%d.%d", VersionMajor, VersionMinor, VersionPatch)
+}