cli/pkg/sdk/generators/go.go
Snider 80fd39f2d8 fix(sdk): run Docker containers as current user to fix CI cleanup
Docker containers were creating files as root, causing Go test cleanup
to fail with "permission denied". Now passes --user flag on Unix systems
to run containers as the current user.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-02-01 04:01:40 +00:00

87 lines
2.2 KiB
Go

package generators
import (
"context"
"fmt"
"os"
"os/exec"
"path/filepath"
)
// GoGenerator generates Go SDKs from OpenAPI specs.
type GoGenerator struct{}
// NewGoGenerator creates a new Go generator.
func NewGoGenerator() *GoGenerator {
return &GoGenerator{}
}
// Language returns the generator's target language identifier.
func (g *GoGenerator) Language() string {
return "go"
}
// Available checks if generator dependencies are installed.
func (g *GoGenerator) Available() bool {
_, err := exec.LookPath("oapi-codegen")
return err == nil
}
// Install returns instructions for installing the generator.
func (g *GoGenerator) Install() string {
return "go install github.com/oapi-codegen/oapi-codegen/v2/cmd/oapi-codegen@latest"
}
// Generate creates SDK from OpenAPI spec.
func (g *GoGenerator) Generate(ctx context.Context, opts Options) error {
if err := os.MkdirAll(opts.OutputDir, 0755); err != nil {
return fmt.Errorf("go.Generate: failed to create output dir: %w", err)
}
if g.Available() {
return g.generateNative(ctx, opts)
}
return g.generateDocker(ctx, opts)
}
func (g *GoGenerator) generateNative(ctx context.Context, opts Options) error {
outputFile := filepath.Join(opts.OutputDir, "client.go")
cmd := exec.CommandContext(ctx, "oapi-codegen",
"-package", opts.PackageName,
"-generate", "types,client",
"-o", outputFile,
opts.SpecPath,
)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
return fmt.Errorf("go.generateNative: %w", err)
}
goMod := fmt.Sprintf("module %s\n\ngo 1.21\n", opts.PackageName)
return os.WriteFile(filepath.Join(opts.OutputDir, "go.mod"), []byte(goMod), 0644)
}
func (g *GoGenerator) generateDocker(ctx context.Context, opts Options) error {
specDir := filepath.Dir(opts.SpecPath)
specName := filepath.Base(opts.SpecPath)
args := []string{"run", "--rm"}
args = append(args, dockerUserArgs()...)
args = append(args,
"-v", specDir+":/spec",
"-v", opts.OutputDir+":/out",
"openapitools/openapi-generator-cli", "generate",
"-i", "/spec/"+specName,
"-g", "go",
"-o", "/out",
"--additional-properties=packageName="+opts.PackageName,
)
cmd := exec.CommandContext(ctx, "docker", args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
return cmd.Run()
}