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82 changes: 82 additions & 0 deletions
82
cmds/ocm/commands/ocmcmds/common/options/hashoption/option.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| // SPDX-FileCopyrightText: 2022 SAP SE or an SAP affiliate company and Open Component Model contributors. | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
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| package hashoption | ||
|
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| import ( | ||
| "github.com/spf13/pflag" | ||
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| "github.com/open-component-model/ocm/cmds/ocm/pkg/options" | ||
| "github.com/open-component-model/ocm/cmds/ocm/pkg/utils" | ||
| "github.com/open-component-model/ocm/pkg/contexts/clictx" | ||
| "github.com/open-component-model/ocm/pkg/contexts/ocm/attrs/signingattr" | ||
| "github.com/open-component-model/ocm/pkg/contexts/ocm/compdesc" | ||
| "github.com/open-component-model/ocm/pkg/contexts/ocm/compdesc/normalizations/jsonv1" | ||
| ocmsign "github.com/open-component-model/ocm/pkg/contexts/ocm/signing" | ||
| "github.com/open-component-model/ocm/pkg/errors" | ||
| "github.com/open-component-model/ocm/pkg/signing" | ||
| "github.com/open-component-model/ocm/pkg/signing/hasher/sha256" | ||
| ) | ||
|
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| func From(o options.OptionSetProvider) *Option { | ||
| var opt *Option | ||
| o.AsOptionSet().Get(&opt) | ||
| return opt | ||
| } | ||
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| var _ options.Options = (*Option)(nil) | ||
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| func New() *Option { | ||
| return &Option{} | ||
| } | ||
|
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| type Option struct { | ||
| Hasher signing.Hasher | ||
| NormAlgorithm string | ||
| hashAlgorithm string | ||
| } | ||
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| func (o *Option) AddFlags(fs *pflag.FlagSet) { | ||
| fs.StringVarP(&o.NormAlgorithm, "normalization", "N", jsonv1.Algorithm, "normalization algorithm") | ||
| fs.StringVarP(&o.hashAlgorithm, "hash", "H", sha256.Algorithm, "hash algorithm") | ||
| } | ||
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| func (o *Option) Complete(ctx clictx.Context) error { | ||
| if o.NormAlgorithm == "" { | ||
| o.NormAlgorithm = jsonv1.Algorithm | ||
| } | ||
| if o.hashAlgorithm == "" { | ||
| o.hashAlgorithm = sha256.Algorithm | ||
| } | ||
| x := compdesc.Normalizations.Get(o.NormAlgorithm) | ||
| if x == nil { | ||
| return errors.ErrUnknown(compdesc.KIND_NORM_ALGORITHM, o.NormAlgorithm) | ||
| } | ||
| o.Hasher = signingattr.Get(ctx).GetHasher(o.hashAlgorithm) | ||
| if o.Hasher == nil { | ||
| return errors.ErrUnknown(compdesc.KIND_HASH_ALGORITHM, o.hashAlgorithm) | ||
| } | ||
| return nil | ||
| } | ||
|
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| func (o *Option) Usage() string { | ||
| s := ` | ||
| The following normalization modes are supported with option <code>--normalization</code>: | ||
| ` + utils.FormatList(jsonv1.Algorithm, compdesc.Normalizations.Names()...) | ||
|
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| s += ` | ||
| The following hash modes are supported with option <code>--hash</code>: | ||
| ` + utils.FormatList(sha256.Algorithm, signing.DefaultRegistry().HasherNames()...) | ||
|
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| signing.DefaultRegistry().HasherNames() | ||
| return s | ||
| } | ||
|
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| var _ ocmsign.Option = (*Option)(nil) | ||
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| func (o *Option) ApplySigningOption(opts *ocmsign.Options) { | ||
| opts.NormalizationAlgo = o.NormAlgorithm | ||
| opts.Hasher = o.Hasher | ||
| } |
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