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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
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@@ -5,3 +5,4 @@ builds/* | |
| !builds/.gitkeep | ||
| .idea/ | ||
| .vscode/ | ||
| packages.abs.json | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,205 @@ | ||
| package install | ||
|
|
||
| import ( | ||
| "archive/zip" | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "io/ioutil" | ||
| "net/http" | ||
| "os" | ||
| "path/filepath" | ||
| "strings" | ||
| "time" | ||
| ) | ||
|
|
||
| func valid(module string) bool { | ||
| return strings.HasPrefix(module, "github.com/") | ||
| } | ||
|
|
||
| func Install(module string) { | ||
|
|
||
| if !valid(module) { | ||
| fmt.Printf(`Error reading URL. Please use "github.com/USER/REPO" format to install`) | ||
| return | ||
| } | ||
|
|
||
| err := getZip(module) | ||
| if err != nil { | ||
| return | ||
| } | ||
|
|
||
| err = unzip(module) | ||
| if err != nil { | ||
| fmt.Printf(`Error unpacking: %v`, err) | ||
| return | ||
| } | ||
|
|
||
| alias, err := createAlias(module) | ||
| if err != nil { | ||
| return | ||
| } | ||
|
|
||
| fmt.Printf("Install Success. You can use the module with `require(\"%s\")`\n", alias) | ||
| return | ||
| } | ||
|
|
||
| func getZip(module string) error { | ||
| fmt.Println("Downloading...") | ||
| path := fmt.Sprintf("./vendor/%s", module) | ||
| // Create all the parent directories if needed | ||
| err := os.MkdirAll(filepath.Dir(path), 0755) | ||
|
|
||
| if err != nil { | ||
| fmt.Printf("Error making directory %s\n", err) | ||
| return err | ||
| } | ||
|
|
||
| out, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE, os.FileMode(0666)) | ||
| if err != nil { | ||
| fmt.Printf("Error opening file %s\n", err) | ||
| return err | ||
| } | ||
| defer out.Close() | ||
|
|
||
| client := http.Client{ | ||
| Timeout: time.Duration(10 * time.Second), | ||
| } | ||
|
|
||
| url := fmt.Sprintf("https://%s/archive/master.zip", module) | ||
|
|
||
| req, err := http.NewRequest("GET", url, nil) | ||
| if err != nil { | ||
| fmt.Printf("Error creating new request %s", err) | ||
| return err | ||
| } | ||
|
|
||
| resp, err := client.Do(req) | ||
|
|
||
| if err != nil { | ||
| fmt.Printf("Could not get module: %s\n", err) | ||
| return err | ||
| } | ||
| defer resp.Body.Close() | ||
| if resp.StatusCode < 200 || resp.StatusCode >= 300 { | ||
| fmt.Errorf("Bad response code: %d", resp.StatusCode) | ||
| return err | ||
| } | ||
|
|
||
| _, err = io.Copy(out, resp.Body) | ||
| if err != nil { | ||
| fmt.Printf("Error copying file %s", err) | ||
| return err | ||
| } | ||
| return err | ||
| } | ||
|
|
||
| // Unzip will decompress a zip archive | ||
| func unzip(module string) error { | ||
| fmt.Println("Unpacking...") | ||
| src := fmt.Sprintf("./vendor/%s", module) | ||
| dest := filepath.Dir(src) | ||
|
|
||
| r, err := zip.OpenReader(src) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer r.Close() | ||
|
|
||
| for _, f := range r.File { | ||
| // Store filename/path for returning and using later on | ||
| fpath := filepath.Join(dest, f.Name) | ||
|
|
||
| // Check for ZipSlip. More Info: http://bit.ly/2MsjAWE | ||
| if !strings.HasPrefix(fpath, filepath.Clean(dest)+string(os.PathSeparator)) { | ||
| return fmt.Errorf("%s: illegal file path", fpath) | ||
| } | ||
|
|
||
| if f.FileInfo().IsDir() { | ||
| // Make Folder | ||
| os.MkdirAll(fpath, 0755) | ||
| continue | ||
| } | ||
|
|
||
| // Make File | ||
| if err = os.MkdirAll(filepath.Dir(fpath), 0755); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| outFile, err := os.OpenFile(fpath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode()) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| rc, err := f.Open() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| _, err = io.Copy(outFile, rc) | ||
|
|
||
| // Close the file without defer to close before next iteration of loop | ||
| outFile.Close() | ||
| rc.Close() | ||
|
|
||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func createAlias(module string) (string, error) { | ||
| fmt.Println("Creating alias...") | ||
| f, err := os.OpenFile("./packages.abs.json", os.O_RDWR|os.O_CREATE, 0666) | ||
| if err != nil { | ||
| fmt.Printf("Could not open alias file %s\n", err) | ||
| return "", err | ||
| } | ||
| defer f.Close() | ||
|
|
||
| b, err := ioutil.ReadAll(f) | ||
|
|
||
| data := make(map[string]string) | ||
| moduleName := filepath.Base(module) | ||
| modulePath := fmt.Sprintf("./vendor/%s-master", module) | ||
|
|
||
| // If package.abs.json file is empty | ||
| if len(b) == 0 { | ||
| // Appending "master" as Github zip file has "-master" suffix | ||
| // Add alias key-value pair to file | ||
| data[moduleName] = modulePath | ||
|
|
||
| } else { | ||
| err = json.Unmarshal(b, &data) | ||
| if err != nil { | ||
| fmt.Printf("Could not unmarshal alias json %s\n", err) | ||
| return "", err | ||
| } | ||
|
|
||
| // module already installed and aliased | ||
| if data[moduleName] == modulePath { | ||
| return moduleName, nil | ||
| } | ||
|
|
||
| if data[moduleName] != "" { | ||
| fmt.Printf("This module could not be aliased because module of same name exists\n") | ||
| moduleName = module | ||
| data[moduleName] = modulePath | ||
| } | ||
| } | ||
|
|
||
| newData, err := json.MarshalIndent(data, "", " ") | ||
| if err != nil { | ||
| fmt.Printf("Could not marshal alias json when installing module %s\n", err) | ||
| return "", err | ||
| } | ||
|
|
||
| _, err = f.WriteAt(newData, 0) | ||
| if err != nil { | ||
| fmt.Printf("Could not write to alias file %s\n", err) | ||
| return "", err | ||
| } | ||
| return moduleName, err | ||
|
|
||
| } |
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