cord-776 create build / runtime containers for autmation uservices
Change-Id: I246973192adef56a250ffe93a5f65fff488840c1
diff --git a/switchq/vendor/github.com/juju/version/version.go b/switchq/vendor/github.com/juju/version/version.go
new file mode 100644
index 0000000..026e99f
--- /dev/null
+++ b/switchq/vendor/github.com/juju/version/version.go
@@ -0,0 +1,297 @@
+// Copyright 2012, 2013 Canonical Ltd.
+// Licensed under the AGPLv3, see LICENCE file for details.
+
+// Package version implements version parsing.
+package version
+
+import (
+ "encoding/json"
+ "fmt"
+ "regexp"
+ "strconv"
+ "strings"
+
+ "gopkg.in/mgo.v2/bson"
+)
+
+// Number represents a version number.
+type Number struct {
+ Major int
+ Minor int
+ Tag string
+ Patch int
+ Build int
+}
+
+// Zero is occasionally convenient and readable.
+// Please don't change its value.
+var Zero = Number{}
+
+// Binary specifies a binary version of juju.v
+type Binary struct {
+ Number
+ Series string
+ Arch string
+}
+
+// String returns the string representation of the binary version.
+func (b Binary) String() string {
+ return fmt.Sprintf("%v-%s-%s", b.Number, b.Series, b.Arch)
+}
+
+// GetBSON implements bson.Getter.
+func (b Binary) GetBSON() (interface{}, error) {
+ return b.String(), nil
+}
+
+// SetBSON implements bson.Setter.
+func (b *Binary) SetBSON(raw bson.Raw) error {
+ var s string
+ err := raw.Unmarshal(&s)
+ if err != nil {
+ return err
+ }
+ v, err := ParseBinary(s)
+ if err != nil {
+ return err
+ }
+ *b = v
+ return nil
+}
+
+// MarshalJSON implements json.Marshaler.
+func (b Binary) MarshalJSON() ([]byte, error) {
+ return json.Marshal(b.String())
+}
+
+// UnmarshalJSON implements json.Unmarshaler.
+func (b *Binary) UnmarshalJSON(data []byte) error {
+ var s string
+ if err := json.Unmarshal(data, &s); err != nil {
+ return err
+ }
+ v, err := ParseBinary(s)
+ if err != nil {
+ return err
+ }
+ *b = v
+ return nil
+}
+
+// MarshalYAML implements yaml.v2.Marshaller interface.
+func (b Binary) MarshalYAML() (interface{}, error) {
+ return b.String(), nil
+}
+
+// UnmarshalYAML implements the yaml.Unmarshaller interface.
+func (b *Binary) UnmarshalYAML(unmarshal func(interface{}) error) error {
+ var vstr string
+ err := unmarshal(&vstr)
+ if err != nil {
+ return err
+ }
+ v, err := ParseBinary(vstr)
+ if err != nil {
+ return err
+ }
+ *b = v
+ return nil
+}
+
+var (
+ binaryPat = regexp.MustCompile(`^(\d{1,9})\.(\d{1,9})(?:\.|-([a-z]+))(\d{1,9})(\.\d{1,9})?-([^-]+)-([^-]+)$`)
+ numberPat = regexp.MustCompile(`^(\d{1,9})\.(\d{1,9})(?:\.|-([a-z]+))(\d{1,9})(\.\d{1,9})?$`)
+)
+
+// MustParse parses a version and panics if it does
+// not parse correctly.
+func MustParse(s string) Number {
+ v, err := Parse(s)
+ if err != nil {
+ panic(err)
+ }
+ return v
+}
+
+// MustParseBinary parses a binary version and panics if it does
+// not parse correctly.
+func MustParseBinary(s string) Binary {
+ b, err := ParseBinary(s)
+ if err != nil {
+ panic(err)
+ }
+ return b
+}
+
+// ParseBinary parses a binary version of the form "1.2.3-series-arch".
+func ParseBinary(s string) (Binary, error) {
+ m := binaryPat.FindStringSubmatch(s)
+ if m == nil {
+ return Binary{}, fmt.Errorf("invalid binary version %q", s)
+ }
+ var b Binary
+ b.Major = atoi(m[1])
+ b.Minor = atoi(m[2])
+ b.Tag = m[3]
+ b.Patch = atoi(m[4])
+ if m[5] != "" {
+ b.Build = atoi(m[5][1:])
+ }
+ b.Series = m[6]
+ b.Arch = m[7]
+ return b, nil
+}
+
+// Parse parses the version, which is of the form 1.2.3
+// giving the major, minor and release versions
+// respectively.
+func Parse(s string) (Number, error) {
+ m := numberPat.FindStringSubmatch(s)
+ if m == nil {
+ return Number{}, fmt.Errorf("invalid version %q", s)
+ }
+ var n Number
+ n.Major = atoi(m[1])
+ n.Minor = atoi(m[2])
+ n.Tag = m[3]
+ n.Patch = atoi(m[4])
+ if m[5] != "" {
+ n.Build = atoi(m[5][1:])
+ }
+ return n, nil
+}
+
+// atoi is the same as strconv.Atoi but assumes that
+// the string has been verified to be a valid integer.
+func atoi(s string) int {
+ n, err := strconv.Atoi(s)
+ if err != nil {
+ panic(err)
+ }
+ return n
+}
+
+// String returns the string representation of this Number.
+func (n Number) String() string {
+ var s string
+ if n.Tag == "" {
+ s = fmt.Sprintf("%d.%d.%d", n.Major, n.Minor, n.Patch)
+ } else {
+ s = fmt.Sprintf("%d.%d-%s%d", n.Major, n.Minor, n.Tag, n.Patch)
+ }
+ if n.Build > 0 {
+ s += fmt.Sprintf(".%d", n.Build)
+ }
+ return s
+}
+
+// Compare returns -1, 0 or 1 depending on whether
+// n is less than, equal to or greater than other.
+// The comparison compares Major, then Minor, then Patch, then Build, using the first difference as
+func (n Number) Compare(other Number) int {
+ if n == other {
+ return 0
+ }
+ less := false
+ switch {
+ case n.Major != other.Major:
+ less = n.Major < other.Major
+ case n.Minor != other.Minor:
+ less = n.Minor < other.Minor
+ case n.Tag != other.Tag:
+ switch {
+ case n.Tag == "":
+ less = false
+ case other.Tag == "":
+ less = true
+ default:
+ less = n.Tag < other.Tag
+ }
+ case n.Patch != other.Patch:
+ less = n.Patch < other.Patch
+ case n.Build != other.Build:
+ less = n.Build < other.Build
+ }
+ if less {
+ return -1
+ }
+ return 1
+}
+
+// GetBSON implements bson.Getter.
+func (n Number) GetBSON() (interface{}, error) {
+ return n.String(), nil
+}
+
+// SetBSON implements bson.Setter.
+func (n *Number) SetBSON(raw bson.Raw) error {
+ var s string
+ err := raw.Unmarshal(&s)
+ if err != nil {
+ return err
+ }
+ v, err := Parse(s)
+ if err != nil {
+ return err
+ }
+ *n = v
+ return nil
+}
+
+// MarshalJSON implements json.Marshaler.
+func (n Number) MarshalJSON() ([]byte, error) {
+ return json.Marshal(n.String())
+}
+
+// UnmarshalJSON implements json.Unmarshaler.
+func (n *Number) UnmarshalJSON(data []byte) error {
+ var s string
+ if err := json.Unmarshal(data, &s); err != nil {
+ return err
+ }
+ v, err := Parse(s)
+ if err != nil {
+ return err
+ }
+ *n = v
+ return nil
+}
+
+// MarshalYAML implements yaml.v2.Marshaller interface
+func (n Number) MarshalYAML() (interface{}, error) {
+ return n.String(), nil
+}
+
+// UnmarshalYAML implements the yaml.Unmarshaller interface
+func (n *Number) UnmarshalYAML(unmarshal func(interface{}) error) error {
+ var vstr string
+ err := unmarshal(&vstr)
+ if err != nil {
+ return err
+ }
+ v, err := Parse(vstr)
+ if err != nil {
+ return err
+ }
+ *n = v
+ return nil
+}
+
+// ParseMajorMinor takes an argument of the form "major.minor" and returns ints major and minor.
+func ParseMajorMinor(vers string) (int, int, error) {
+ parts := strings.Split(vers, ".")
+ major, err := strconv.Atoi(parts[0])
+ minor := -1
+ if err != nil {
+ return -1, -1, fmt.Errorf("invalid major version number %s: %v", parts[0], err)
+ }
+ if len(parts) == 2 {
+ minor, err = strconv.Atoi(parts[1])
+ if err != nil {
+ return -1, -1, fmt.Errorf("invalid minor version number %s: %v", parts[1], err)
+ }
+ } else if len(parts) > 2 {
+ return -1, -1, fmt.Errorf("invalid major.minor version number %s", vers)
+ }
+ return major, minor, nil
+}