71 lines
1.9 KiB
Go
71 lines
1.9 KiB
Go
/*
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Copyright 2018 Google LLC
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package dockerfile
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import (
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"strings"
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d "github.com/docker/docker/builder/dockerfile"
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"github.com/moby/buildkit/frontend/dockerfile/instructions"
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)
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type BuildArgs struct {
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d.BuildArgs
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}
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func NewBuildArgs(args []string) *BuildArgs {
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argsFromOptions := make(map[string]*string)
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for _, a := range args {
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s := strings.SplitN(a, "=", 2)
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if len(s) == 1 {
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argsFromOptions[s[0]] = nil
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} else {
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argsFromOptions[s[0]] = &s[1]
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}
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}
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return &BuildArgs{
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BuildArgs: *d.NewBuildArgs(argsFromOptions),
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}
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}
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func (b *BuildArgs) Clone() *BuildArgs {
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clone := b.BuildArgs.Clone()
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return &BuildArgs{
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BuildArgs: *clone,
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}
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}
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// ReplacementEnvs returns a list of filtered environment variables
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func (b *BuildArgs) ReplacementEnvs(envs []string) []string {
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// Ensure that we operate on a new array and do not modify the underlying array
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resultEnv := make([]string, len(envs))
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copy(resultEnv, envs)
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filtered := b.FilterAllowed(envs)
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// Disable makezero linter, since the previous make is paired with a same sized copy
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return append(resultEnv, filtered...) //nolint:makezero
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}
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// AddMetaArgs adds the supplied args map to b's allowedMetaArgs
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func (b *BuildArgs) AddMetaArgs(metaArgs []instructions.ArgCommand) {
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for _, marg := range metaArgs {
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for _, arg := range marg.Args {
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v := arg.Value
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b.AddMetaArg(arg.Key, v)
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}
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}
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}
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