📋 GetInstalledPackageNames

Gets the list of all installed package names, equivalent to running composer show and parsing the output to extract package names.

When to use

Use it when you only need the list of package names without full package information. It is more efficient than getting the full output, and is suitable for batch package existence checks, dependency inventory generation, and similar scenarios.

Signature

func (c *Composer) GetInstalledPackageNames() ([]string, error)

Parameters

This method takes no parameters.

Return value

Return value	Type	Description
First return value	[]string	List of installed package names (including direct and transitive dependencies)
Second return value	error	Returned when executing composer show fails

Example

package main

import (
	"fmt"
	"log"

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

func main() {
	comp, err := composer.New(composer.DefaultOptions())
	if err != nil {
		log.Fatalf("initialization failed: %v", err)
	}

	packages, err := comp.GetInstalledPackageNames()
	if err != nil {
		log.Fatalf("failed to get package list: %v", err)
	}
	fmt.Printf("%d packages installed in total:\n", len(packages))
	for _, name := range packages {
		fmt.Println(" -", name)
	}
}

Advanced

• For direct dependencies package names only, use GetDirectDependencyNames.
• To parse any composer show text output, use the ParsePackageList(output) utility function.
• To get package version numbers, use GetRequireWithVersion.