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packer: Additional comments

This commit is contained in:
Mitchell Hashimoto 2013-06-14 12:32:14 -07:00
parent a6194467ac
commit fd044982d9
2 changed files with 11 additions and 0 deletions
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3
packer/build.go
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@ -26,6 +26,9 @@ type Build interface {
// enabled by adding the additional key "packer_debug" to boolean // enabled by adding the additional key "packer_debug" to boolean
// true in the configuration of the various components. This must // true in the configuration of the various components. This must
// be called prior to Prepare. // be called prior to Prepare.
//
// When SetDebug is set to true, parallelism between builds is
// strictly prohibited.
SetDebug(bool) SetDebug(bool)
} }

8
packer/builder.go
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@ -2,6 +2,14 @@ package packer
// Implementers of Builder are responsible for actually building images // Implementers of Builder are responsible for actually building images
// on some platform given some configuration. // on some platform given some configuration.
//
// In addition to the documentation on Prepare above: Prepare is sometimes
// configured with a `map[string]interface{}` that has a key "packer_debug".
// This is a boolean value. If it is set to true, then the builder should
// enable a debug mode which allows builder developers and advanced users
// to introspect what is going on during a build. During debug builds,
// parallelism is strictly disabled, so it is safe to request input from
// stdin and so on.
type Builder interface { type Builder interface {
// Prepare is responsible for configuring the builder and validating // Prepare is responsible for configuring the builder and validating
// that configuration. Any setup should be done in this method. Note that // that configuration. Any setup should be done in this method. Note that