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moby--moby/builder/dockerfile/instructions/support.go
Simon Ferquel 669c067798 Introduce a typed command system and 2 phase parse/dispatch build
This is a work base to introduce more features like build time
dockerfile optimisations, dependency analysis and parallel build, as
well as a first step to go from a dispatch-inline process to a
frontend+backend process.

Signed-off-by: Simon Ferquel <simon.ferquel@docker.com>
2017-09-18 09:48:56 +02:00

19 lines
541 B
Go

package instructions
import "strings"
// handleJSONArgs parses command passed to CMD, ENTRYPOINT, RUN and SHELL instruction in Dockerfile
// for exec form it returns untouched args slice
// for shell form it returns concatenated args as the first element of a slice
func handleJSONArgs(args []string, attributes map[string]bool) []string {
if len(args) == 0 {
return []string{}
}
if attributes != nil && attributes["json"] {
return args
}
// literal string command, not an exec array
return []string{strings.Join(args, " ")}
}