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build_option.go
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build_option.go
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// Copyright 2023 Chainguard, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
// ListOption describes an optional deviation to a list, for example, a
// list of packages.
type ListOption struct {
Add []string `yaml:"add,omitempty"`
Remove []string `yaml:"remove,omitempty"`
}
// ContentsOption describes an optional deviation to an apko environment's
// contents block.
type ContentsOption struct {
Packages ListOption `yaml:"packages,omitempty"`
}
// AccountsOption describes an optional deviation to an apko environment's
// run-as setting.
type AccountsOption struct {
RunAs string `yaml:"run-as,omitempty"`
}
// BuildOption describes an optional deviation to an apko environment.
type BuildOption struct {
Contents ContentsOption `yaml:"contents,omitempty"`
Accounts AccountsOption `yaml:"accounts,omitempty"`
Environment map[string]string `yaml:"environment,omitempty"`
Entrypoint ImageEntrypoint `yaml:"entrypoint,omitempty"`
}
// Apply applies a patch described by a BuildOption to an apko environment.
func (bo BuildOption) Apply(ic *ImageConfiguration) error {
lo := bo.Contents.Packages
ic.Contents.Packages = append(ic.Contents.Packages, lo.Add...)
for _, pkg := range lo.Remove {
pkgList := ic.Contents.Packages
for pos, ppkg := range pkgList {
if pkg == ppkg {
pkgList[pos] = pkgList[len(pkgList)-1]
pkgList = pkgList[:len(pkgList)-1]
}
}
ic.Contents.Packages = pkgList
}
if bo.Accounts.RunAs != "" {
ic.Accounts.RunAs = bo.Accounts.RunAs
}
for k, v := range bo.Environment {
ic.Environment[k] = v
}
if bo.Entrypoint.Type != "" {
ic.Entrypoint = bo.Entrypoint
}
return nil
}