86 lines
1.6 KiB
Go
86 lines
1.6 KiB
Go
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package builtin
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import (
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"bytes"
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"encoding/base64"
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"fmt"
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"github.com/drone/drone/engine/compiler/parse"
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)
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const (
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Freebsd_amd64 = "freebsd_amd64"
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Linux_adm64 = "linux_amd64"
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Windows_amd64 = "windows_amd64"
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)
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type shellOp struct {
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visitor
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platform string
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}
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// NewShellOp returns a transformer that converts the shell node to
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// a runnable container.
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func NewShellOp(platform string) Visitor {
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return &shellOp{
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platform: platform,
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}
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}
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func (v *shellOp) VisitContainer(node *parse.ContainerNode) error {
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if node.NodeType != parse.NodeShell {
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return nil
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}
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node.Container.Entrypoint = []string{
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"/bin/sh", "-c",
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}
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node.Container.Command = []string{
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"echo $CI_CMDS | base64 -d | /bin/sh -e",
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}
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if node.Container.Environment == nil {
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node.Container.Environment = map[string]string{}
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}
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node.Container.Environment["HOME"] = "/root"
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node.Container.Environment["SHELL"] = "/bin/sh"
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node.Container.Environment["CI_CMDS"] = toScript(
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node.Root().Path,
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node.Commands,
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)
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return nil
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}
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func toScript(base string, commands []string) string {
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var buf bytes.Buffer
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for _, command := range commands {
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buf.WriteString(fmt.Sprintf(
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traceScript,
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"<command>"+command+"</command>",
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command,
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))
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}
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script := fmt.Sprintf(
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setupScript,
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buf.String(),
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)
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return base64.StdEncoding.EncodeToString([]byte(script))
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}
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// setupScript is a helper script this is added to the build to ensure
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// a minimum set of environment variables are set correctly.
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const setupScript = `
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echo $DRONE_NETRC > $HOME/.netrc
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%s
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`
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// traceScript is a helper script that is added to the build script
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// to trace a command.
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const traceScript = `
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echo %q
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%s
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`
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