VOL-381 add unum container to support ONOS cluster formation under swarm
Change-Id: Ic260edda19bb199ed040f05164ab605f28c919d0
diff --git a/unum/vendor/github.com/docker/distribution/reference/regexp.go b/unum/vendor/github.com/docker/distribution/reference/regexp.go
new file mode 100644
index 0000000..7860349
--- /dev/null
+++ b/unum/vendor/github.com/docker/distribution/reference/regexp.go
@@ -0,0 +1,143 @@
+package reference
+
+import "regexp"
+
+var (
+ // alphaNumericRegexp defines the alpha numeric atom, typically a
+ // component of names. This only allows lower case characters and digits.
+ alphaNumericRegexp = match(`[a-z0-9]+`)
+
+ // separatorRegexp defines the separators allowed to be embedded in name
+ // components. This allow one period, one or two underscore and multiple
+ // dashes.
+ separatorRegexp = match(`(?:[._]|__|[-]*)`)
+
+ // nameComponentRegexp restricts registry path component names to start
+ // with at least one letter or number, with following parts able to be
+ // separated by one period, one or two underscore and multiple dashes.
+ nameComponentRegexp = expression(
+ alphaNumericRegexp,
+ optional(repeated(separatorRegexp, alphaNumericRegexp)))
+
+ // domainComponentRegexp restricts the registry domain component of a
+ // repository name to start with a component as defined by DomainRegexp
+ // and followed by an optional port.
+ domainComponentRegexp = match(`(?:[a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9])`)
+
+ // DomainRegexp defines the structure of potential domain components
+ // that may be part of image names. This is purposely a subset of what is
+ // allowed by DNS to ensure backwards compatibility with Docker image
+ // names.
+ DomainRegexp = expression(
+ domainComponentRegexp,
+ optional(repeated(literal(`.`), domainComponentRegexp)),
+ optional(literal(`:`), match(`[0-9]+`)))
+
+ // TagRegexp matches valid tag names. From docker/docker:graph/tags.go.
+ TagRegexp = match(`[\w][\w.-]{0,127}`)
+
+ // anchoredTagRegexp matches valid tag names, anchored at the start and
+ // end of the matched string.
+ anchoredTagRegexp = anchored(TagRegexp)
+
+ // DigestRegexp matches valid digests.
+ DigestRegexp = match(`[A-Za-z][A-Za-z0-9]*(?:[-_+.][A-Za-z][A-Za-z0-9]*)*[:][[:xdigit:]]{32,}`)
+
+ // anchoredDigestRegexp matches valid digests, anchored at the start and
+ // end of the matched string.
+ anchoredDigestRegexp = anchored(DigestRegexp)
+
+ // NameRegexp is the format for the name component of references. The
+ // regexp has capturing groups for the domain and name part omitting
+ // the separating forward slash from either.
+ NameRegexp = expression(
+ optional(DomainRegexp, literal(`/`)),
+ nameComponentRegexp,
+ optional(repeated(literal(`/`), nameComponentRegexp)))
+
+ // anchoredNameRegexp is used to parse a name value, capturing the
+ // domain and trailing components.
+ anchoredNameRegexp = anchored(
+ optional(capture(DomainRegexp), literal(`/`)),
+ capture(nameComponentRegexp,
+ optional(repeated(literal(`/`), nameComponentRegexp))))
+
+ // ReferenceRegexp is the full supported format of a reference. The regexp
+ // is anchored and has capturing groups for name, tag, and digest
+ // components.
+ ReferenceRegexp = anchored(capture(NameRegexp),
+ optional(literal(":"), capture(TagRegexp)),
+ optional(literal("@"), capture(DigestRegexp)))
+
+ // IdentifierRegexp is the format for string identifier used as a
+ // content addressable identifier using sha256. These identifiers
+ // are like digests without the algorithm, since sha256 is used.
+ IdentifierRegexp = match(`([a-f0-9]{64})`)
+
+ // ShortIdentifierRegexp is the format used to represent a prefix
+ // of an identifier. A prefix may be used to match a sha256 identifier
+ // within a list of trusted identifiers.
+ ShortIdentifierRegexp = match(`([a-f0-9]{6,64})`)
+
+ // anchoredIdentifierRegexp is used to check or match an
+ // identifier value, anchored at start and end of string.
+ anchoredIdentifierRegexp = anchored(IdentifierRegexp)
+
+ // anchoredShortIdentifierRegexp is used to check if a value
+ // is a possible identifier prefix, anchored at start and end
+ // of string.
+ anchoredShortIdentifierRegexp = anchored(ShortIdentifierRegexp)
+)
+
+// match compiles the string to a regular expression.
+var match = regexp.MustCompile
+
+// literal compiles s into a literal regular expression, escaping any regexp
+// reserved characters.
+func literal(s string) *regexp.Regexp {
+ re := match(regexp.QuoteMeta(s))
+
+ if _, complete := re.LiteralPrefix(); !complete {
+ panic("must be a literal")
+ }
+
+ return re
+}
+
+// expression defines a full expression, where each regular expression must
+// follow the previous.
+func expression(res ...*regexp.Regexp) *regexp.Regexp {
+ var s string
+ for _, re := range res {
+ s += re.String()
+ }
+
+ return match(s)
+}
+
+// optional wraps the expression in a non-capturing group and makes the
+// production optional.
+func optional(res ...*regexp.Regexp) *regexp.Regexp {
+ return match(group(expression(res...)).String() + `?`)
+}
+
+// repeated wraps the regexp in a non-capturing group to get one or more
+// matches.
+func repeated(res ...*regexp.Regexp) *regexp.Regexp {
+ return match(group(expression(res...)).String() + `+`)
+}
+
+// group wraps the regexp in a non-capturing group.
+func group(res ...*regexp.Regexp) *regexp.Regexp {
+ return match(`(?:` + expression(res...).String() + `)`)
+}
+
+// capture wraps the expression in a capturing group.
+func capture(res ...*regexp.Regexp) *regexp.Regexp {
+ return match(`(` + expression(res...).String() + `)`)
+}
+
+// anchored anchors the regular expression by adding start and end delimiters.
+func anchored(res ...*regexp.Regexp) *regexp.Regexp {
+ return match(`^` + expression(res...).String() + `$`)
+}