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author | TomSweeneyRedHat <tsweeney@redhat.com> | 2020-01-14 14:46:46 -0500 |
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committer | TomSweeneyRedHat <tsweeney@redhat.com> | 2020-01-14 14:46:46 -0500 |
commit | f5bda9994d5e6cb1ee42ade5e7786059feedf633 (patch) | |
tree | 4473a0c3b4615ee58165f06ccf57a1bfe4298fe9 /vendor/k8s.io/apimachinery/pkg/labels | |
parent | 564bd693cae4e8a870be7a7860ef673e793f6358 (diff) | |
download | podman-f5bda9994d5e6cb1ee42ade5e7786059feedf633.tar.gz podman-f5bda9994d5e6cb1ee42ade5e7786059feedf633.tar.bz2 podman-f5bda9994d5e6cb1ee42ade5e7786059feedf633.zip |
Bump to Buildah v1.13.1
Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>
Diffstat (limited to 'vendor/k8s.io/apimachinery/pkg/labels')
-rw-r--r-- | vendor/k8s.io/apimachinery/pkg/labels/selector.go | 43 |
1 files changed, 33 insertions, 10 deletions
diff --git a/vendor/k8s.io/apimachinery/pkg/labels/selector.go b/vendor/k8s.io/apimachinery/pkg/labels/selector.go index 9be9e57d3..2f8e1e2b0 100644 --- a/vendor/k8s.io/apimachinery/pkg/labels/selector.go +++ b/vendor/k8s.io/apimachinery/pkg/labels/selector.go @@ -54,6 +54,11 @@ type Selector interface { // Make a deep copy of the selector. DeepCopySelector() Selector + + // RequiresExactMatch allows a caller to introspect whether a given selector + // requires a single specific label to be set, and if so returns the value it + // requires. + RequiresExactMatch(label string) (value string, found bool) } // Everything returns a selector that matches all labels. @@ -63,12 +68,13 @@ func Everything() Selector { type nothingSelector struct{} -func (n nothingSelector) Matches(_ Labels) bool { return false } -func (n nothingSelector) Empty() bool { return false } -func (n nothingSelector) String() string { return "" } -func (n nothingSelector) Add(_ ...Requirement) Selector { return n } -func (n nothingSelector) Requirements() (Requirements, bool) { return nil, false } -func (n nothingSelector) DeepCopySelector() Selector { return n } +func (n nothingSelector) Matches(_ Labels) bool { return false } +func (n nothingSelector) Empty() bool { return false } +func (n nothingSelector) String() string { return "" } +func (n nothingSelector) Add(_ ...Requirement) Selector { return n } +func (n nothingSelector) Requirements() (Requirements, bool) { return nil, false } +func (n nothingSelector) DeepCopySelector() Selector { return n } +func (n nothingSelector) RequiresExactMatch(label string) (value string, found bool) { return "", false } // Nothing returns a selector that matches no labels func Nothing() Selector { @@ -358,6 +364,23 @@ func (lsel internalSelector) String() string { return strings.Join(reqs, ",") } +// RequiresExactMatch introspect whether a given selector requires a single specific field +// to be set, and if so returns the value it requires. +func (lsel internalSelector) RequiresExactMatch(label string) (value string, found bool) { + for ix := range lsel { + if lsel[ix].key == label { + switch lsel[ix].operator { + case selection.Equals, selection.DoubleEquals, selection.In: + if len(lsel[ix].strValues) == 1 { + return lsel[ix].strValues[0], true + } + } + return "", false + } + } + return "", false +} + // Token represents constant definition for lexer token type Token int @@ -850,7 +873,7 @@ func SelectorFromSet(ls Set) Selector { if ls == nil || len(ls) == 0 { return internalSelector{} } - var requirements internalSelector + requirements := make([]Requirement, 0, len(ls)) for label, value := range ls { r, err := NewRequirement(label, selection.Equals, []string{value}) if err == nil { @@ -862,7 +885,7 @@ func SelectorFromSet(ls Set) Selector { } // sort to have deterministic string representation sort.Sort(ByKey(requirements)) - return requirements + return internalSelector(requirements) } // SelectorFromValidatedSet returns a Selector which will match exactly the given Set. @@ -872,13 +895,13 @@ func SelectorFromValidatedSet(ls Set) Selector { if ls == nil || len(ls) == 0 { return internalSelector{} } - var requirements internalSelector + requirements := make([]Requirement, 0, len(ls)) for label, value := range ls { requirements = append(requirements, Requirement{key: label, operator: selection.Equals, strValues: []string{value}}) } // sort to have deterministic string representation sort.Sort(ByKey(requirements)) - return requirements + return internalSelector(requirements) } // ParseToRequirements takes a string representing a selector and returns a list of |