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Fix rendering for multi-line commands

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Heredocs can be used to create multi-line commands, which broke rendering.

Details about heredocs: https://www.docker.com/blog/introduction-to-heredocs-in-dockerfiles/
This commit is contained in:
Ohad Lutzky 2023-04-14 13:39:06 +01:00 • committed by Alex Goodman
commit ceb9688d92
1 changed files with 7 additions and 1 deletions
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8
dive/image/layer.go
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@ -33,6 +33,12 @@ func (l *Layer) ShortId() string {
return id
}
func (l *Layer) commandPreview() string {
// Layers using heredocs can be multiple lines; rendering relies on
// Layer.String to be a single line.
return strings.Replace(l.Command, "\n", "↵", -1)
}
func (l *Layer) String() string {
if l.Index == 0 {
return fmt.Sprintf(LayerFormat,
@ -41,5 +47,5 @@ func (l *Layer) String() string {
}
return fmt.Sprintf(LayerFormat,
humanize.Bytes(l.Size),
strings.Split(l.Command, "\n")[0])
l.commandPreview())
}