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Add "get" command
The get command downloads tools from GitHub release pages and from custom URLs using a go template to define the URL and filename according to OS and architecture. Tested with unit tests and with the two initial apps: faas-cli and kubectl. Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -5,4 +5,4 @@ kubeconfig | ||
| .idea/ | ||
| mc | ||
| /arkade-* | ||
| /faas-cli-darwin | ||
| /faas-cli* | ||
111
cmd/get.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| // Copyright (c) arkade author(s) 2020. All rights reserved. | ||
| // Licensed under the MIT license. See LICENSE file in the project root for full license information. | ||
|
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| package cmd | ||
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| import ( | ||
| "fmt" | ||
| "io" | ||
| "net/http" | ||
| "os" | ||
| "path" | ||
| "strings" | ||
|
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| "github.com/alexellis/arkade/pkg/env" | ||
| "github.com/alexellis/arkade/pkg/get" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
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| func MakeGet() *cobra.Command { | ||
| tools := get.MakeTools() | ||
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| var command = &cobra.Command{ | ||
| Use: "get", | ||
| Short: "Get a release of a tool or application and install it on your local computer.", | ||
| Example: ` arkade get kubectl | ||
| arkade get openfaas`, | ||
| SilenceUsage: true, | ||
| } | ||
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| command.RunE = func(cmd *cobra.Command, args []string) error { | ||
| if len(args) == 0 { | ||
| fmt.Println(arkadeGet) | ||
| return nil | ||
| } | ||
| var tool *get.Tool | ||
|
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| if len(args) == 1 { | ||
| for _, t := range tools { | ||
| if t.Name == args[0] { | ||
| tool = &t | ||
| break | ||
| } | ||
| } | ||
| } | ||
| if tool == nil { | ||
| return fmt.Errorf("cannot get tool: %s", args[0]) | ||
| } | ||
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| fmt.Printf("Downloading %s\n", tool.Name) | ||
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| arch, operatingSystem := env.GetClientArch() | ||
| version := "" | ||
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| downloadURL, err := get.GetDownloadURL(tool, strings.ToLower(operatingSystem), strings.ToLower(arch), version) | ||
| if err != nil { | ||
| return err | ||
| } | ||
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| fmt.Println(downloadURL) | ||
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| res, err := http.DefaultClient.Get(downloadURL) | ||
| if err != nil { | ||
| return err | ||
| } | ||
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| if res.Body != nil { | ||
| defer res.Body.Close() | ||
| } | ||
|
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| if res.StatusCode != http.StatusOK { | ||
| return fmt.Errorf("incorrect status for downloading tool: %d", res.StatusCode) | ||
| } | ||
|
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| _, fileName := path.Split(downloadURL) | ||
| tmp := os.TempDir() | ||
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| outFilePath := path.Join(tmp, fileName) | ||
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| out, err := os.Create(outFilePath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer out.Close() | ||
|
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| if _, err = io.Copy(out, res.Body); err != nil { | ||
| return err | ||
| } | ||
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| finalName := tool.Name | ||
| if strings.Contains(strings.ToLower(operatingSystem), "mingw") { | ||
| finalName = finalName + ".exe" | ||
| } | ||
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| fmt.Printf(`Tool written to: %s | ||
| Run the following to copy to install the tool: | ||
| chmod +x %s | ||
| sudo install -m 755 %s /usr/local/bin/%s | ||
| `, outFilePath, outFilePath, outFilePath, finalName) | ||
|
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| return err | ||
| } | ||
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| return command | ||
| } | ||
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| const arkadeGet = `Use "arkade get TOOL" to download a tool or application: | ||
| - kubectl | ||
| - faas-cli` |
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