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Revise the deprecation strategy

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Git users and theme authors two Hugo releases to fix:

1. With a visible warning
2. Then with an ERROR that exits with -1

Fixes #2726
This commit is contained in:
Bjørn Erik Pedersen 2016-11-23 17:26:13 +01:00
parent 0a0db9cd25
commit f1ed89fec4
4 changed files with 25 additions and 11 deletions
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25
helpers/general.go
View file

@ -250,19 +250,32 @@ func NewDistinctFeedbackLogger() *DistinctLogger {
return &DistinctLogger{m: make(map[string]bool), logger: &jww.FEEDBACK}
}
// DistinctErrorLog cann be used to avoid spamming the logs with errors.
var DistinctErrorLog = NewDistinctErrorLogger()
var (
// DistinctErrorLog can be used to avoid spamming the logs with errors.
DistinctErrorLog = NewDistinctErrorLogger()
// DistinctFeedbackLog can be used to avoid spamming the logs with info messages.
DistinctFeedbackLog = NewDistinctFeedbackLogger()
)
// InitLoggers sets up the global distinct loggers.
func InitLoggers() {
DistinctErrorLog = NewDistinctErrorLogger()
}
// Deprecated logs ERROR logs about a deprecation, but only once for a given set of arguments' values.
func Deprecated(object, item, alternative string) {
// deprecatedLogger.Printf("%s's %s is deprecated and will be removed in Hugo %s. Use %s instead.", object, item, NextHugoReleaseVersion(), alternative)
DistinctErrorLog.Printf("%s's %s is deprecated and will be removed in a future release. Use %s instead.", object, item, alternative)
// Deprecated informs about a deprecation, but only once for a given set of arguments' values.
// If the err flag is enabled, it logs as an ERROR (will exit with -1) and the text will
// point at the next Hugo release.
// The idea is two remove an item in two Hugo releases to give users and theme authors
// plenty of time to fix their templates.
func Deprecated(object, item, alternative string, err bool) {
if err {
DistinctErrorLog.Printf("%s's %s is deprecated and will be removed in Hugo %s. Use %s instead.", object, item, NextHugoReleaseVersion(), alternative)
} else {
// Make sure the users see this while avoiding build breakage. This will not lead to an os.Exit(-1)
DistinctFeedbackLog.Printf("WARNING: %s's %s is deprecated and will be removed in a future release. Use %s instead.", object, item, alternative)
}
}
// SliceToLower goes through the source slice and lowers all values.

8
hugolib/page.go
View file

@ -242,18 +242,18 @@ type PageMeta struct {
}
func (*PageMeta) WordCount() int {
helpers.Deprecated("PageMeta", "WordCount", ".WordCount (on Page)")
helpers.Deprecated("PageMeta", "WordCount", ".WordCount (on Page)", true)
return 0
}
func (*PageMeta) FuzzyWordCount() int {
helpers.Deprecated("PageMeta", "FuzzyWordCount", ".FuzzyWordCount (on Page)")
helpers.Deprecated("PageMeta", "FuzzyWordCount", ".FuzzyWordCount (on Page)", true)
return 0
}
func (*PageMeta) ReadingTime() int {
helpers.Deprecated("PageMeta", "ReadingTime", ".ReadingTime (on Page)")
helpers.Deprecated("PageMeta", "ReadingTime", ".ReadingTime (on Page)", true)
return 0
}
@ -1565,7 +1565,7 @@ func (p *Page) Hugo() *HugoInfo {
func (p *Page) RSSlink() template.HTML {
// TODO(bep) we cannot have two of these
helpers.Deprecated(".Page", "RSSlink", "RSSLink")
helpers.Deprecated(".Page", "RSSlink", "RSSLink", false)
return p.RSSLink
}

1
hugolib/page_test.go
View file

@ -1270,6 +1270,7 @@ func TestIndexPageSimpleMethods(t *testing.T) {
} {
n := &Page{pageInit: &pageInit{}, Kind: KindHome}
n.RSSLink = "rssLink"
if !this.assertFunc(n) {

2
hugolib/site.go
View file

@ -245,7 +245,7 @@ func (s *SiteInfo) Param(key interface{}) (interface{}, error) {
// GetParam gets a site parameter value if found, nil if not.
func (s *SiteInfo) GetParam(key string) interface{} {
helpers.Deprecated("SiteInfo", ".GetParam", ".Param")
helpers.Deprecated("SiteInfo", ".GetParam", ".Param", false)
v := s.Params[strings.ToLower(key)]
if v == nil {