🔍 Detect

Detects the Composer executable on the system and returns its full path.

When to Use

Use this when you need the actual path of the Composer executable (for direct invocation, logging, passing to composer.New's ExecutablePath, etc.). The method searches level by level in the order "environment variable → default paths → which/where → composer.phar". 📦

Signature

func (d *Detector) Detect() (string, error)

Parameters

Parameter	Type	Description
None	—	This method takes no parameters; the set of candidate paths comes from the Detector's internal state

Return Value

• string: The full path of the detected Composer executable.
• error: Returns ErrExecutableNotFound ("未找到composer可执行文件") when not found. ⚠️

Example

package main

import (
	"fmt"
	"log"

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

func main() {
	d := detector.NewDetector()
	path, err := d.Detect()
	if err != nil {
		log.Fatalf("Composer not detected: %v", err)
	}
	fmt.Printf("Composer path: %s\n", path)
}

Advanced

• To learn which method (environment variable / default path / which) the detected path was hit by, use DetectVerbose.
• If you only need to know whether it is installed without needing the path, IsInstalled is lighter. ✅
• You can force a path via the COMPOSER_PATH environment variable, which takes priority and is matched first. 🎯