mirror of
https://github.com/anchore/syft.git
synced 2025-11-17 08:23:15 +01:00
65 lines
1.7 KiB
Go
65 lines
1.7 KiB
Go
package cmd
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import (
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"fmt"
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"strings"
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"github.com/anchore/syft/internal/formats/table"
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"github.com/anchore/syft/syft"
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"github.com/anchore/syft/syft/sbom"
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"github.com/hashicorp/go-multierror"
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)
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// makeWriter creates a sbom.Writer for output or returns an error. this will either return a valid writer
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// or an error but neither both and if there is no error, sbom.Writer.Close() should be called
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func makeWriter(outputs []string, defaultFile string) (sbom.Writer, error) {
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outputOptions, err := parseOptions(outputs, defaultFile)
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if err != nil {
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return nil, err
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}
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writer, err := sbom.NewWriter(outputOptions...)
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if err != nil {
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return nil, err
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}
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return writer, nil
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}
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// parseOptions utility to parse command-line option strings and retain the existing behavior of default format and file
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func parseOptions(outputs []string, defaultFile string) (out []sbom.WriterOption, errs error) {
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// always should have one option -- we generally get the default of "table", but just make sure
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if len(outputs) == 0 {
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outputs = append(outputs, string(table.ID))
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}
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for _, name := range outputs {
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name = strings.TrimSpace(name)
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// split to at most two parts for <format>=<file>
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parts := strings.SplitN(name, "=", 2)
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// the format name is the first part
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name = parts[0]
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// default to the --file or empty string if not specified
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file := defaultFile
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// If a file is specified as part of the output formatName, use that
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if len(parts) > 1 {
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file = parts[1]
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}
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format := syft.FormatByName(name)
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if format == nil {
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errs = multierror.Append(errs, fmt.Errorf("bad output format: '%s'", name))
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continue
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}
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out = append(out, sbom.NewWriterOption(format, file))
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}
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return out, errs
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}
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