ea5b2fabaf
Implements Python SDK generator with two-level fallback: 1. Native openapi-python-client if installed 2. Docker openapitools/openapi-generator-cli as fallback Includes tests following _Good convention for Available and Generate. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
76 lines
2 KiB
Go
76 lines
2 KiB
Go
package generators
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import (
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"context"
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"fmt"
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"os"
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"os/exec"
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"path/filepath"
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)
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// PythonGenerator generates Python SDKs from OpenAPI specs.
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type PythonGenerator struct{}
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// NewPythonGenerator creates a new Python generator.
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func NewPythonGenerator() *PythonGenerator {
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return &PythonGenerator{}
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}
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// Language returns the generator's target language identifier.
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func (g *PythonGenerator) Language() string {
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return "python"
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}
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// Available checks if generator dependencies are installed.
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func (g *PythonGenerator) Available() bool {
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_, err := exec.LookPath("openapi-python-client")
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return err == nil
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}
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// Install returns instructions for installing the generator.
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func (g *PythonGenerator) Install() string {
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return "pip install openapi-python-client"
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}
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// Generate creates SDK from OpenAPI spec.
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func (g *PythonGenerator) Generate(ctx context.Context, opts Options) error {
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if err := os.MkdirAll(opts.OutputDir, 0755); err != nil {
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return fmt.Errorf("python.Generate: failed to create output dir: %w", err)
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}
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if g.Available() {
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return g.generateNative(ctx, opts)
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}
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return g.generateDocker(ctx, opts)
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}
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func (g *PythonGenerator) generateNative(ctx context.Context, opts Options) error {
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parentDir := filepath.Dir(opts.OutputDir)
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cmd := exec.CommandContext(ctx, "openapi-python-client", "generate",
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"--path", opts.SpecPath,
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"--output-path", opts.OutputDir,
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)
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cmd.Dir = parentDir
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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return cmd.Run()
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}
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func (g *PythonGenerator) generateDocker(ctx context.Context, opts Options) error {
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specDir := filepath.Dir(opts.SpecPath)
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specName := filepath.Base(opts.SpecPath)
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cmd := exec.CommandContext(ctx, "docker", "run", "--rm",
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"-v", specDir+":/spec",
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"-v", opts.OutputDir+":/out",
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"openapitools/openapi-generator-cli", "generate",
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"-i", "/spec/"+specName,
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"-g", "python",
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"-o", "/out",
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"--additional-properties=packageName="+opts.PackageName,
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)
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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return cmd.Run()
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}
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