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resources: file: Allow undefined file contents

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An undefined file contents means we aren't managing that state!
This commit is contained in:
James Shubin
2016-11-10 06:06:41 -05:00
parent 3bffccc48e
commit fb04f62115
1 changed files with 25 additions and 15 deletions
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40
resources/file.go
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@@ -47,22 +47,22 @@ func init() {
// FileRes is a file and directory resource.
type FileRes struct {
BaseRes `yaml:",inline"`
Path string `yaml:"path"` // path variable (should default to name)
Dirname string `yaml:"dirname"`
Basename string `yaml:"basename"`
Content string `yaml:"content"` // FIXME: how do you describe: "leave content alone" - state = "create" ?
Source string `yaml:"source"` // file path for source content
State string `yaml:"state"` // state: exists/present?, absent, (undefined?)
Recurse bool `yaml:"recurse"`
Force bool `yaml:"force"`
path string // computed path
isDir bool // computed isDir
Path string `yaml:"path"` // path variable (should default to name)
Dirname string `yaml:"dirname"`
Basename string `yaml:"basename"`
Content *string `yaml:"content"` // nil to mark as undefined
Source string `yaml:"source"` // file path for source content
State string `yaml:"state"` // state: exists/present?, absent, (undefined?)
Recurse bool `yaml:"recurse"`
Force bool `yaml:"force"`
path string // computed path
isDir bool // computed isDir
sha256sum string
recWatcher *recwatch.RecWatcher
}
// NewFileRes is a constructor for this resource. It also calls Init() for you.
func NewFileRes(name, path, dirname, basename, content, source, state string, recurse, force bool) (*FileRes, error) {
func NewFileRes(name, path, dirname, basename string, content *string, source, state string, recurse, force bool) (*FileRes, error) {
obj := &FileRes{
BaseRes: BaseRes{
Name: name,
@@ -120,11 +120,11 @@ func (obj *FileRes) Validate() error {
return fmt.Errorf("Basename must not start with a slash.")
}
if obj.Content != "" && obj.Source != "" {
if obj.Content != nil && obj.Source != "" {
return fmt.Errorf("Can't specify both Content and Source.")
}
if obj.isDir && obj.Content != "" { // makes no sense
if obj.isDir && obj.Content != nil { // makes no sense
return fmt.Errorf("Can't specify Content when creating a Dir.")
}
@@ -610,12 +610,17 @@ func (obj *FileRes) contentCheckApply(apply bool) (checkOK bool, _ error) {
return false, err // either nil or not
}
// content is not defined, leave it alone...
if obj.Content == nil {
return true, nil
}
if obj.Source == "" { // do the obj.Content checks first...
if obj.isDir { // TODO: should we create an empty dir this way?
log.Fatal("XXX: Not implemented!") // XXX
}
bufferSrc := bytes.NewReader([]byte(obj.Content))
bufferSrc := bytes.NewReader([]byte(*obj.Content))
sha256sum, checkOK, err := obj.fileCheckApply(apply, bufferSrc, obj.path, obj.sha256sum)
if sha256sum != "" { // empty values mean errored or didn't hash
// this can be valid even when the whole function errors
@@ -789,9 +794,14 @@ func (obj *FileRes) Compare(res Res) bool {
if obj.path != res.Path {
return false
}
if obj.Content != res.Content {
if (obj.Content == nil) != (res.Content == nil) { // xor
return false
}
if obj.Content != nil && res.Content != nil {
if *obj.Content != *res.Content { // compare the strings
return false
}
}
if obj.Source != res.Source {
return false
}