🔖 GetInstalledVersion

Returns the version string of the installed Composer.

When to Use

Use this when you need to display the current Composer version or decide whether an upgrade is needed. It first locates the composer path, then runs composer --version. 📈

Signature

func (i *Installer) GetInstalledVersion() (string, error)

Parameters

Parameter	Type	Description
None	—	This method takes no parameters

Return Value

• string: The full output of composer --version (with surrounding whitespace trimmed).
• error: Returns ErrComposerNotFound when composer is not found; returns a wrapped error on execution failure. ⚠️

Example

package main

import (
	"fmt"
	"log"

	"github.com/scagogogo/composer-skills/pkg/installer"
)

func main() {
	i := installer.DefaultInstaller()
	version, err := i.GetInstalledVersion()
	if err != nil {
		log.Fatalf("failed to get version: %v", err)
	}
	fmt.Printf("current version: %s\n", version)
}

Advanced

• Returns the entire line of output from composer --version (e.g. Composer version 2.7.1 ...); parse it yourself if you need the bare version number. 🛠️
• Under the hood it calls the package-level function CheckComposerVersion. 🔗
• You can use IsInstalled beforehand to avoid errors. ✅