Support for --web when using gist create (#2263)

* Support for --web when using gist create

Proposal to close #2071

I have not worked with Go prior to this so please smite me down with the
wisdom of a million Golang gods if I'm doing something terribly wrong.

I also added a test to gist/create for the added web arg.

Pretty much referenced the implementation from pr/create.

* Fix for Tests / build (windows-latest)

I believe this fixes it as it stopped failing on a local vm. Otherwise I
will try and tackle it tomorrow.

* minor cleanup

Co-authored-by: vilmibm <vilmibm@github.com>

pkg/cmd/gist/create/create.go

@@ -30,6 +30,8 @@ type CreateOptions struct {
 	Filenames        []string
 	FilenameOverride string
 
+	WebMode bool
+
 	HttpClient func() (*http.Client, error)
 }
 
@@ -86,6 +88,7 @@ func NewCmdCreate(f *cmdutil.Factory, runF func(*CreateOptions) error) *cobra.Co
 	}
 
 	cmd.Flags().StringVarP(&opts.Description, "desc", "d", "", "A description for this gist")
+	cmd.Flags().BoolVarP(&opts.WebMode, "web", "w", false, "Open the web browser with created gist")
 	cmd.Flags().BoolVarP(&opts.Public, "public", "p", false, "List the gist publicly (default: private)")
 	cmd.Flags().StringVarP(&opts.FilenameOverride, "filename", "f", "", "Provide a filename to be used when reading from STDIN")
 	return cmd
@@ -138,6 +141,12 @@ func createRun(opts *CreateOptions) error {
 
 	fmt.Fprintf(errOut, "%s %s\n", cs.SuccessIcon(), completionMessage)
 
+	if opts.WebMode {
+		fmt.Fprintf(opts.IO.Out, "Opening %s in your browser.\n", utils.DisplayURL(gist.HTMLURL))
+
+		return utils.OpenInBrowser(gist.HTMLURL)
+	}
+
 	fmt.Fprintln(opts.IO.Out, gist.HTMLURL)
 
 	return nil

pkg/cmd/gist/create/create_test.go

@@ -3,6 +3,7 @@ package create
 import (
 	"bytes"
 	"encoding/json"
+	"github.com/cli/cli/test"
 	"io/ioutil"
 	"net/http"
 	"strings"
@@ -254,6 +255,26 @@ func Test_createRun(t *testing.T) {
 				},
 			},
 		},
+		{
+			name: "web arg",
+			opts: &CreateOptions{
+				WebMode:   true,
+				Filenames: []string{fixtureFile},
+			},
+			wantOut:    "Opening gist.github.com/aa5a315d61ae9438b18d in your browser.\n",
+			wantStderr: "- Creating gist fixture.txt\n✓ Created gist fixture.txt\n",
+			wantErr:    false,
+			wantParams: map[string]interface{}{
+				"description": "",
+				"updated_at":  "0001-01-01T00:00:00Z",
+				"public":      false,
+				"files": map[string]interface{}{
+					"fixture.txt": map[string]interface{}{
+						"content": "{}",
+					},
+				},
+			},
+		},
 	}
 	for _, tt := range tests {
 		reg := &httpmock.Registry{}
@@ -270,6 +291,13 @@ func Test_createRun(t *testing.T) {
 		io, stdin, stdout, stderr := iostreams.Test()
 		tt.opts.IO = io
 
+		cs, cmdTeardown := test.InitCmdStubber()
+		defer cmdTeardown()
+
+		if tt.opts.WebMode {
+			cs.Stub("")
+		}
+
 		t.Run(tt.name, func(t *testing.T) {
 			stdin.WriteString(tt.stdin)
 
@@ -285,6 +313,12 @@ func Test_createRun(t *testing.T) {
 			assert.Equal(t, tt.wantOut, stdout.String())
 			assert.Equal(t, tt.wantStderr, stderr.String())
 			assert.Equal(t, tt.wantParams, reqBody)
+
+			if tt.opts.WebMode {
+				browserCall := cs.Calls[0].Args
+				assert.Equal(t, browserCall[len(browserCall)-1], "https://gist.github.com/aa5a315d61ae9438b18d")
+			}
+
 			reg.Verify(t)
 		})
 	}