kubernetes/vendor/k8s.io/system-validators/validators/package_validator_linux.go

const semVerDotsCount …

type packageManager …

// newPackageManager returns the package manager on the running machine, and an
// error if no package managers is available.
func newPackageManager() (packageManager, error) { … }

type dpkg …

// newDPKG returns a Debian package manager. It returns (nil, false) if no such
// package manager exists on the running machine.
func newDPKG() (packageManager, bool) { … }

// getPackageVersion returns the upstream package version for the package given
// the packageName, and an error if no such package exists.
func (dpkg) getPackageVersion(packageName string) (string, error) { … }

type packageValidator …

// Name returns the name of the package validator.
func (validator *packageValidator) Name() string { … }

// Validate checks packages and their versions against the spec using the
// package manager on the running machine, and returns an error on any
// package/version mismatch.
func (validator *packageValidator) Validate(spec SysSpec) ([]error, []error) { … }

// Validate checks packages and their versions against the packageSpecs using
// the packageManager, and returns an error on any package/version mismatch.
func (validator *packageValidator) validate(packageSpecs []PackageSpec, manager packageManager) ([]error, []error) { … }

// getKernelRelease returns the kernel release of the local machine.
func getKernelRelease() (string, error) { … }

// getOSDistro returns the OS distro of the local machine.
func getOSDistro() (string, error) { … }

// resolvePackageName substitutes the variables in the packageName with the
// local information.
// E.g., "linux-headers-${KERNEL_RELEASE}" -> "linux-headers-4.4.0-75-generic".
func resolvePackageName(packageName string, kernelRelease string) string { … }

// applyPackageSpecOverride applies the package spec overrides for the given
// osDistro to the packageSpecs and returns the applied result.
func applyPackageSpecOverride(packageSpecs []PackageSpec, overrides []PackageSpecOverride, osDistro string) []PackageSpec { … }

// extractUpstreamVersion returns the upstream version of the given full
// version in dpkg format. E.g., "1:1.0.6-2ubuntu2.1" -> "1.0.6".
func extractUpstreamVersion(version string) string { … }

// toSemVerRange converts the input to a semantic version range.
// E.g.,
// - ">=1.0"             -> ">=1.0.x"
// - ">=1"               -> ">=1.x"
// - ">=1 <=2.3"         -> ">=1.x <=2.3.x"
// - ">1 || >3.1.0 !4.2" -> ">1.x || >3.1.0 !4.2.x"
func toSemVerRange(input string) string { … }

// toSemVer converts the input to a semantic version, and an empty string on
// error.
func toSemVer(version string) string { … }