Initial commit - Get file from server successful

Makefile

@@ -0,0 +1,11 @@
+clean:
+	go clean
+dep:
+	go mod tidy
+fmt:
+	go fmt ./...
+lint:
+	golangci-lint run
+lint-all:
+	golangci-lint run --enable-all
+.PHONY: dep lint clean

app.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"log"
+
+	"github.com/gorilla/mux"
+
+	"gosimplenpm/handler"
+)
+
+type application struct {
+	logger *log.Logger
+}
+
+func (app *application) Routes() *mux.Router {
+	m := mux.NewRouter()
+
+	// main handler
+	m.HandleFunc("/{name}", handler.Get).Methods("GET")
+	m.HandleFunc("/{name}", handler.Publish).Methods("PUT")
+	// tar handlers
+	m.HandleFunc("/{name}/-/{tar}", handler.Tar).Methods("GET")
+	// tag handlers
+	m.HandleFunc("/-/package/{name}/dist-tags/{tag}", handler.DistTagDelete).Methods("DELETE")
+	m.HandleFunc("/-/package/{name}/dist-tags/{tag}", handler.DistTagPut).Methods("PUT")
+	m.HandleFunc("/-/package/{name}/dist-tags", handler.DistTagGet).Methods("GET")
+	return m
+}

examples/package1/index.json

@@ -0,0 +1,5 @@
+{
+    "_id": "@test/bar1",
+    "description": "",
+,    "versions": {}
+}

examples/package2/index.json

@@ -0,0 +1,5 @@
+{
+    "_id": "@test/bar",
+    "description": "",
+,   "versions": {}
+}

go.mod

@@ -0,0 +1,7 @@
+module gosimplenpm
+
+go 1.20
+
+require github.com/gorilla/mux v1.8.0
+
+// replace gosimplenpm/handler => ./handler

go.sum

@@ -0,0 +1,2 @@
+github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
+github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=

handler/get.go

@@ -0,0 +1,29 @@
+package handler
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/gorilla/mux"
+
+	"gosimplenpm/storage"
+)
+
+func Get(w http.ResponseWriter, r *http.Request) {
+	packageName := mux.Vars(r)["name"]
+
+	fileToServe, err := storage.GetPackageFromStore(packageName)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	if fileToServe == "" {
+		ret := fmt.Sprintf("Package not found: %s", packageName)
+		http.Error(w, ret, http.StatusNotFound)
+		return
+	}
+
+	// serve file
+	http.ServeFile(w, r, fileToServe)
+}

handler/publish.go

@@ -0,0 +1,9 @@
+package handler
+
+import (
+	"net/http"
+)
+
+func Publish(w http.ResponseWriter, r *http.Request) {
+
+}

handler/tagdelete.go

@@ -0,0 +1,9 @@
+package handler
+
+import (
+	"net/http"
+)
+
+func DistTagDelete(w http.ResponseWriter, r *http.Request) {
+
+}

handler/tagget.go

@@ -0,0 +1,9 @@
+package handler
+
+import (
+	"net/http"
+)
+
+func DistTagGet(w http.ResponseWriter, r *http.Request) {
+
+}

handler/tagput.go

@@ -0,0 +1,9 @@
+package handler
+
+import (
+	"net/http"
+)
+
+func DistTagPut(w http.ResponseWriter, r *http.Request) {
+
+}

handler/tar.go

@@ -0,0 +1,9 @@
+package handler
+
+import (
+	"net/http"
+)
+
+func Tar(w http.ResponseWriter, r *http.Request) {
+
+}

main.go

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"log"
+	"net/http"
+)
+
+func main() {
+	app := new(application)
+	log.Print("Starting server on port 4000")
+	err := http.ListenAndServe(":4000", app.Routes())
+	log.Fatal(err)
+}

storage/fs.go

@@ -0,0 +1,33 @@
+package storage
+
+import (
+	"fmt"
+	"io/fs"
+	"path"
+	"strings"
+
+	"path/filepath"
+)
+
+func GetPackageFromStore(packageName string) (string, error) {
+	fileToServe := ""
+	searchDir, err := filepath.Abs("./examples")
+	if err != nil {
+		fmt.Printf("File repo not found: +%v/n", err)
+		return "", err
+	}
+
+	err = filepath.WalkDir(searchDir, func(fp string, info fs.DirEntry, e error) error {
+		if strings.Contains(fp, path.Join(packageName, "index.json")) {
+			fileToServe = fp
+		}
+		return e
+	})
+
+	if err != nil {
+		fmt.Printf("List files error: +%v/n", err)
+		return "", err
+	}
+
+	return fileToServe, nil
+}