37ab93e2c8
The normalization was being inconsistently applied causing a failure to match some platforms in manifest lists. Fix the matcher and normalization to be more consistent and add changes to parser to prevent the defaulted variants from being set in the platform structure. Signed-off-by: Derek McGowan <derek@mcgstyle.net>
127 lines
3.0 KiB
Go
127 lines
3.0 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package platforms
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import (
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"runtime"
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"strings"
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)
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// isLinuxOS returns true if the operating system is Linux.
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//
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// The OS value should be normalized before calling this function.
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func isLinuxOS(os string) bool {
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return os == "linux"
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}
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// These function are generated from from https://golang.org/src/go/build/syslist.go.
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//
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// We use switch statements because they are slightly faster than map lookups
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// and use a little less memory.
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// isKnownOS returns true if we know about the operating system.
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//
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// The OS value should be normalized before calling this function.
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func isKnownOS(os string) bool {
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switch os {
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case "android", "darwin", "dragonfly", "freebsd", "linux", "nacl", "netbsd", "openbsd", "plan9", "solaris", "windows", "zos":
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return true
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}
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return false
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}
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// isArmArch returns true if the architecture is ARM.
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//
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// The arch value should be normalized before being passed to this function.
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func isArmArch(arch string) bool {
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switch arch {
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case "arm", "arm64":
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return true
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}
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return false
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}
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// isKnownArch returns true if we know about the architecture.
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//
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// The arch value should be normalized before being passed to this function.
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func isKnownArch(arch string) bool {
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switch arch {
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case "386", "amd64", "amd64p32", "arm", "armbe", "arm64", "arm64be", "ppc64", "ppc64le", "mips", "mipsle", "mips64", "mips64le", "mips64p32", "mips64p32le", "ppc", "s390", "s390x", "sparc", "sparc64":
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return true
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}
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return false
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}
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func normalizeOS(os string) string {
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if os == "" {
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return runtime.GOOS
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}
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os = strings.ToLower(os)
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switch os {
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case "macos":
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os = "darwin"
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}
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return os
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}
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// normalizeArch normalizes the architecture.
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func normalizeArch(arch, variant string) (string, string) {
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arch, variant = strings.ToLower(arch), strings.ToLower(variant)
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switch arch {
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case "i386":
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arch = "386"
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variant = ""
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case "x86_64", "x86-64":
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arch = "amd64"
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variant = ""
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case "aarch64", "arm64":
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arch = "arm64"
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switch variant {
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case "", "8":
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variant = "v8"
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}
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case "armhf":
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arch = "arm"
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variant = "v7"
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case "armel":
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arch = "arm"
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variant = "v6"
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case "arm":
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switch variant {
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case "", "7":
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variant = "v7"
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case "5", "6", "8":
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variant = "v" + variant
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}
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}
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return arch, variant
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}
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// defaultVariant detects default variants on normalized arch/variant
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func defaultVariant(arch, variant string) bool {
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switch arch {
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case "arm64":
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return variant == "v8"
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case "arm":
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return variant == "v7"
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default:
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return true
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}
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}
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