150 lines
3.6 KiB
Go
150 lines
3.6 KiB
Go
package main
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import (
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"fmt"
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"log"
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"strings"
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version "github.com/hashicorp/go-version"
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)
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// Platform is a combination of OS/arch that can be built against.
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type Platform struct {
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OS string
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Arch string
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// Default, if true, will be included as a default build target
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// if no OS/arch is specified. We try to only set as a default popular
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// targets or targets that are generally useful. For example, Android
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// is not a default because it is quite rare that you're cross-compiling
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// something to Android AND something like Linux.
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Default bool
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}
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func (p *Platform) String() string {
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return fmt.Sprintf("%s/%s", p.OS, p.Arch)
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}
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var (
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Platforms_1_0 = []Platform{
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{"darwin", "386", true},
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{"darwin", "amd64", true},
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{"linux", "386", true},
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{"linux", "amd64", true},
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{"linux", "arm", true},
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{"freebsd", "386", true},
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{"freebsd", "amd64", true},
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{"openbsd", "386", true},
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{"openbsd", "amd64", true},
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{"windows", "386", true},
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{"windows", "amd64", true},
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}
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Platforms_1_1 = append(Platforms_1_0, []Platform{
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{"freebsd", "arm", true},
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{"netbsd", "386", true},
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{"netbsd", "amd64", true},
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{"netbsd", "arm", true},
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{"plan9", "386", false},
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}...)
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Platforms_1_3 = append(Platforms_1_1, []Platform{
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{"dragonfly", "386", false},
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{"dragonfly", "amd64", false},
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{"nacl", "amd64", false},
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{"nacl", "amd64p32", false},
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{"nacl", "arm", false},
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{"solaris", "amd64", false},
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}...)
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Platforms_1_4 = append(Platforms_1_3, []Platform{
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{"android", "arm", false},
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{"plan9", "amd64", false},
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}...)
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Platforms_1_5 = append(Platforms_1_4, []Platform{
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{"darwin", "arm", false},
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{"darwin", "arm64", false},
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{"linux", "arm64", false},
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{"linux", "ppc64", false},
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{"linux", "ppc64le", false},
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}...)
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Platforms_1_6 = append(Platforms_1_5, []Platform{
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{"android", "386", false},
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{"linux", "mips64", false},
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{"linux", "mips64le", false},
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}...)
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Platforms_1_7 = append(Platforms_1_5, []Platform{
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// While not fully supported s390x is generally useful
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{"linux", "s390x", true},
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{"plan9", "arm", false},
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// Add the 1.6 Platforms, but reflect full support for mips64 and mips64le
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{"android", "386", false},
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{"linux", "mips64", true},
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{"linux", "mips64le", true},
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}...)
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Platforms_1_8 = append(Platforms_1_7, []Platform{
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{"linux", "mips", true},
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{"linux", "mipsle", true},
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}...)
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// no new platforms in 1.9
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Platforms_1_9 = Platforms_1_8
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// no new platforms in 1.10
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Platforms_1_10 = Platforms_1_9
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PlatformsLatest = Platforms_1_10
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)
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// SupportedPlatforms returns the full list of supported platforms for
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// the version of Go that is
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func SupportedPlatforms(v string) []Platform {
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// Use latest if we get an unexpected version string
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if !strings.HasPrefix(v, "go") {
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return PlatformsLatest
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}
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// go-version only cares about version numbers
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v = v[2:]
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current, err := version.NewVersion(v)
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if err != nil {
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log.Printf("Unable to parse current go version: %s\n%s", v, err.Error())
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// Default to latest
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return PlatformsLatest
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}
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var platforms = []struct {
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constraint string
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plat []Platform
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}{
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{"<= 1.0", Platforms_1_0},
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{">= 1.1, < 1.3", Platforms_1_1},
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{">= 1.3, < 1.4", Platforms_1_3},
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{">= 1.4, < 1.5", Platforms_1_4},
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{">= 1.5, < 1.6", Platforms_1_5},
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{">= 1.6, < 1.7", Platforms_1_6},
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{">= 1.7, < 1.8", Platforms_1_7},
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{">= 1.8, < 1.9", Platforms_1_8},
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{">= 1.9, < 1.10", Platforms_1_9},
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{">=1.10, < 1.11", Platforms_1_10},
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}
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for _, p := range platforms {
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constraints, err := version.NewConstraint(p.constraint)
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if err != nil {
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panic(err)
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}
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if constraints.Check(current) {
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return p.plat
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}
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}
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// Assume latest
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return Platforms_1_9
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}
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