kubernetes/staging/src/k8s.io/kubectl/pkg/cmd/set/helper.go

// selectContainers allows one or more containers to be matched against a string or wildcard
func selectContainers(containers []v1.Container, spec string) ([]*v1.Container, []*v1.Container) { … }

// selectString returns true if the provided string matches spec, where spec is a string with
// a non-greedy '*' wildcard operator.
// TODO: turn into a regex and handle greedy matches and backtracking.
func selectString(s, spec string) bool { … }

type Patch …

type PatchFn …

// CalculatePatch calls the mutation function on the provided info object, and generates a strategic merge patch for
// the changes in the object. Encoder must be able to encode the info into the appropriate destination type.
// This function returns whether the mutation function made any change in the original object.
func CalculatePatch(patch *Patch, encoder runtime.Encoder, mutateFn PatchFn) bool { … }

// CalculatePatches calculates patches on each provided info object. If the provided mutateFn
// makes no change in an object, the object is not included in the final list of patches.
func CalculatePatches(infos []*resource.Info, encoder runtime.Encoder, mutateFn PatchFn) []*Patch { … }

func findEnv(env []v1.EnvVar, name string) (v1.EnvVar, bool) { … }

// updateEnv adds and deletes specified environment variables from existing environment variables.
// An added variable replaces all existing variables with the same name.
// Removing a variable removes all existing variables with the same name.
// If the existing list contains duplicates that are unrelated to the variables being added and removed,
// those duplicates are left intact in the result.
// If a variable is both added and removed, the removal takes precedence.
func updateEnv(existing []v1.EnvVar, env []v1.EnvVar, remove []string) []v1.EnvVar { … }