- Pods
- Cold Feet 1.3.4
- API
- NameTransformer
- Src
sourceafColdFeet::UrlTransformers.fan
using afIoc
using afIocConfig
using afBedSheet
** (Service) -
** ColdFeet's strategy for transforming URLs.
const mixin UrlTransformer {
** Transforms the given URL with the digest to a ColdFeet URL.
abstract Uri toColdFeet(Uri localUrl, Str digest)
** Is the URL a recognisable ColdFeet URL?
**
** The given URL will always start with a slash.
abstract Bool isColdFeet(Uri localUrl)
** Converts the given ColdFeet URL to a local URL.
**
** Both should always start with a slash.
abstract Uri fromColdFeet(Uri coldFeetUrl)
** Extracts and returns the digest embedded within the given ColdFeet URL.
**
** Both should always start with a slash.
abstract Str extractDigest(Uri coldFeetUrl)
}
** `UrlTransformer` that generates ColdFeet URLs in the format '/coldFeet/XXXX/css/myStyle.css'
const class PathTransformer : UrlTransformer {
@Config @Inject private const Str urlPrefix
@NoDoc @Inject
new make(|This|in) { in(this) }
@NoDoc
new makeForTesting(Str urlPrefix) {
this.urlPrefix = urlPrefix
}
@NoDoc // boring
override Uri toColdFeet(Uri url, Str digest) {
`/` + urlPrefix.toUri.plusSlash + digest.toUri.plusSlash + url.relTo(`/`)
}
@NoDoc // boring
override Bool isColdFeet(Uri url) {
path := url.path
return path.size > 2 && path.first.equalsIgnoreCase(urlPrefix)
}
@NoDoc // boring
override Uri fromColdFeet(Uri url) {
url.getRangeToPathAbs(2..-1)
}
@NoDoc // boring
override Str extractDigest(Uri url) {
url.path[1]
}
}
** `UrlTransformer` that generates ColdFeet URLs in the format '/css/myStyle.coldFeet.XXXX.css'
const class NameTransformer : UrlTransformer {
@Config @Inject private const Str urlPrefix
@NoDoc @Inject
new make(|This|in) { in(this) }
@NoDoc
new makeForTesting(Str urlPrefix) {
this.urlPrefix = urlPrefix
}
@NoDoc // boring
override Uri toColdFeet(Uri url, Str digest) {
name := (url.ext == null)
? "${url.name}.${urlPrefix}.${digest}"
: "${url.name[0..<-(url.ext.size+1)]}.${urlPrefix}.${digest}.${url.ext}"
// url cannot be a dir, see FileAssetCacheAdvice
return url.parent.plusName(name)
}
@NoDoc // boring
override Bool isColdFeet(Uri url) {
segs := url.name.split('.')
return (segs.size >= 4 && segs[-3].equalsIgnoreCase(urlPrefix)) || (segs.size >= 3 && segs[-2].equalsIgnoreCase(urlPrefix))
}
@NoDoc // boring
override Uri fromColdFeet(Uri url) {
segs := url.name.split('.')
name := segs[-2].equalsIgnoreCase(urlPrefix)
? segs[0..<-2].join(".")
: segs[0..<-3].join(".") + ".${segs[-1]}"
return url.parent.plusName(name)
}
@NoDoc // boring
override Str extractDigest(Uri url) {
segs := url.name.split('.')
return segs[-2].equalsIgnoreCase(urlPrefix)
? segs[-1]
: segs[-2]
}
}