81a3100b4a
- Add 'mfer export' command: dumps manifest as JSON to stdout for piping to jq etc - Add HTTP/HTTPS URL support for manifest path arguments (check, list, export) - Enable --version flag (was hidden, now shown) - Audit all error messages: wrap with fmt.Errorf context throughout CLI and library - Add tests for export command and URL-based manifest loading - Add manifest_loader.go with shared resolveManifestArg and openManifestReader helpers
55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
package cli
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import (
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"fmt"
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"io"
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"net/http"
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"strings"
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"github.com/urfave/cli/v2"
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)
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// isHTTPURL returns true if the string starts with http:// or https://.
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func isHTTPURL(s string) bool {
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return strings.HasPrefix(s, "http://") || strings.HasPrefix(s, "https://")
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}
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// openManifestReader opens a manifest from a path or URL and returns a ReadCloser.
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// The caller must close the returned reader.
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func (mfa *CLIApp) openManifestReader(pathOrURL string) (io.ReadCloser, error) {
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if isHTTPURL(pathOrURL) {
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resp, err := http.Get(pathOrURL) //nolint:gosec // user-provided URL is intentional
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if err != nil {
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return nil, fmt.Errorf("failed to fetch %s: %w", pathOrURL, err)
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}
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if resp.StatusCode != http.StatusOK {
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_ = resp.Body.Close()
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return nil, fmt.Errorf("failed to fetch %s: HTTP %d", pathOrURL, resp.StatusCode)
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}
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return resp.Body, nil
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}
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f, err := mfa.Fs.Open(pathOrURL)
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if err != nil {
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return nil, err
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}
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return f, nil
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}
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// resolveManifestArg resolves the manifest path from CLI arguments.
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// HTTP(S) URLs are returned as-is. Directories are searched for index.mf/.index.mf.
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// If no argument is given, the current directory is searched.
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func (mfa *CLIApp) resolveManifestArg(ctx *cli.Context) (string, error) {
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if ctx.Args().Len() > 0 {
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arg := ctx.Args().Get(0)
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if isHTTPURL(arg) {
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return arg, nil
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}
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info, statErr := mfa.Fs.Stat(arg)
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if statErr == nil && info.IsDir() {
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return findManifest(mfa.Fs, arg)
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}
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return arg, nil
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}
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return findManifest(mfa.Fs, ".")
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}
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