[CLI] implement forgejo-cli

(cherry picked from commit 2555e315f7)
(cherry picked from commit 987df92935)

tests/integration/cmd_forgejo_test.go

@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: MIT
+
+package integration
+
+import (
+	"bytes"
+	"context"
+	"flag"
+	"io"
+	"os"
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/cmd/forgejo"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/urfave/cli"
+)
+
+func cmdForgejoCaptureOutput(t *testing.T, args []string) (string, error) {
+	r, w, err := os.Pipe()
+	assert.NoError(t, err)
+	set := flag.NewFlagSet("forgejo-cli", 0)
+	assert.NoError(t, set.Parse(args))
+	cliContext := cli.NewContext(&cli.App{Writer: w, ErrWriter: w}, set, nil)
+	ctx := context.Background()
+	ctx = forgejo.ContextSetNoInstallSignals(ctx, true)
+	ctx = forgejo.ContextSetNoExit(ctx, true)
+	ctx = forgejo.ContextSetStdout(ctx, w)
+	ctx = forgejo.ContextSetStderr(ctx, w)
+	if len(stdin) > 0 {
+		ctx = forgejo.ContextSetStdin(ctx, strings.NewReader(strings.Join(stdin, "")))
+	}
+	err = forgejo.CmdForgejo(ctx).Run(cliContext)
+	w.Close()
+	var buf bytes.Buffer
+	io.Copy(&buf, r)
+	return buf.String(), err
+}