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95 lines
2.6 KiB
95 lines
2.6 KiB
/*
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Copyright The Helm Authors.
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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 plugin
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import (
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"bytes"
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"fmt"
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"os"
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"os/exec"
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"path/filepath"
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"slices"
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"helm.sh/helm/v4/internal/plugin/schema"
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)
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func getProtocolCommand(commands []SubprocessProtocolCommand, protocol string) *SubprocessProtocolCommand {
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for _, c := range commands {
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if slices.Contains(c.Protocols, protocol) {
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return &c
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}
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}
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return nil
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}
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// TODO can we replace a lot of this func with RuntimeSubprocess.invokeWithEnv?
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func (r *SubprocessPluginRuntime) runGetter(input *Input) (*Output, error) {
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msg, ok := (input.Message).(schema.InputMessageGetterV1)
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if !ok {
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return nil, fmt.Errorf("expected input type schema.InputMessageGetterV1, got %T", input)
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}
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tmpDir, err := os.MkdirTemp(os.TempDir(), fmt.Sprintf("helm-plugin-%s-", r.metadata.Name))
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if err != nil {
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return nil, fmt.Errorf("failed to create temporary directory: %w", err)
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}
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defer os.RemoveAll(tmpDir)
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d := getProtocolCommand(r.RuntimeConfig.ProtocolCommands, msg.Protocol)
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if d == nil {
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return nil, fmt.Errorf("no downloader found for protocol %q", msg.Protocol)
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}
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command, args, err := PrepareCommands(d.PlatformCommand, false, []string{})
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if err != nil {
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return nil, fmt.Errorf("failed to prepare commands for protocol %q: %w", msg.Protocol, err)
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}
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args = append(
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args,
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msg.Options.CertFile,
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msg.Options.KeyFile,
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msg.Options.CAFile,
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msg.Href)
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// TODO should we append to input.Env too?
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env := append(
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os.Environ(),
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fmt.Sprintf("HELM_PLUGIN_USERNAME=%s", msg.Options.Username),
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fmt.Sprintf("HELM_PLUGIN_PASSWORD=%s", msg.Options.Password),
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fmt.Sprintf("HELM_PLUGIN_PASS_CREDENTIALS_ALL=%t", msg.Options.PassCredentialsAll))
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// TODO should we pass along input.Stdout?
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buf := bytes.Buffer{} // subprocess getters are expected to write content to stdout
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pluginCommand := filepath.Join(r.pluginDir, command)
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prog := exec.Command(
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pluginCommand,
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args...)
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prog.Env = env
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prog.Stdout = &buf
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prog.Stderr = os.Stderr
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if err := executeCmd(prog, r.metadata.Name); err != nil {
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return nil, err
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}
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return &Output{
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Message: schema.OutputMessageGetterV1{
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Data: buf.Bytes(),
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},
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}, nil
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}
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