simple project type detection tool.

go/.gitignore

.go
detect
qst
examples/hello

go/detect.go

package main
import (
	"fmt"
	"os"
	"path"
	"./fileutil"
)
/*
	detect - guess the project type from files present
*/
type Detection struct {
	Language string
	Type     string
}
type detectorFunc func(string) bool
type Detector struct {
	Detection Detection
	Detector  detectorFunc
}
var Detectors = []Detector{
	{Detection{"clojure", "leiningen"}, clojureLeiningen},
	{Detection{"go", "default"}, goDefault},
	{Detection{"java", "maven"}, javaMaven},
	{Detection{"make", "default"}, makeDefault},
	{Detection{"python", "default"}, pythonDefault},
	{Detection{"ruby", "rails"}, rubyRails},
	{Detection{"ruby", "rake"}, rubyRake},
	{Detection{"ruby", "default"}, rubyDefault},
}
func main() {
	if len(os.Args) < 2 {
		fmt.Printf("Usage: %s <file>\n", os.Args[0])
		os.Exit(1)
	}
	file := os.Args[1]
	for _, detector := range Detectors {
		fmt.Println(detector.Detection, detector.Detector(file))
	}
}
func matchingFileOrDir(file string, pattern string) bool {
	if fileutil.IsFile(file) {
		_, f := path.Split(file)
		isMatch, _ := path.Match(pattern, f)
		return isMatch
	} else {
		return fileutil.MatchExists(path.Join(path.Dir(file), pattern))
	}
}
func hasFile(fileOrDir string, file string) bool {
	return fileutil.IsFile(fileutil.Join(fileOrDir, file))
}
func clojureLeiningen(file string) bool {
	return hasFile(file, "project.clj")
}
func goDefault(file string) bool {
	return matchingFileOrDir(file, "*.go")
}
func javaMaven(file string) bool {
	return hasFile(file, "pom.xml")
}
func makeDefault(file string) bool {
	return hasFile(file, "Makefile")
}
func pythonDefault(file string) bool {
	return matchingFileOrDir(file, "*.py")
}
func rubyRails(file string) bool {
	return hasFile(file, "bin/rails")
}
func rubyRake(file string) bool {
	return hasFile(file, "Rakefile")
}
func rubyDefault(file string) bool {
	return matchingFileOrDir(file, "*.rb")
}

go/fileutil/fileutil.go

package fileutil
import (
	"os"
	"path"
	"path/filepath"
)
func IsFile(path string) bool {
	info, err := os.Stat(path)
	if err != nil {
		return false
	}
	return !info.IsDir()
}
func IsDir(path string) bool {
	info, err := os.Stat(path)
	if err != nil {
		return false
	}
	return info.IsDir()
}
func MatchExists(glob string) bool {
	matches, _ := filepath.Glob(glob)
	return len(matches) > 0
}
func Join(fileOrDir string, elem ...string) string {
	dir := fileOrDir
	if IsFile(fileOrDir) {
		dir = path.Dir(fileOrDir)
	}
	return path.Join(dir, path.Join(elem...))
}