mirror of
https://github.com/caddyserver/xcaddy.git
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74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
package xcaddy
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import (
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"encoding/json"
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"os/exec"
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)
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// Compile contains parameters for compilation.
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type Compile struct {
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Platform
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Cgo bool `json:"cgo,omitempty"`
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}
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// Platform represents a build target.
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type Platform struct {
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OS string `json:"os,omitempty"`
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Arch string `json:"arch,omitempty"`
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ARM string `json:"arm,omitempty"`
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}
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// SupportedPlatforms runs `go tool dist list` to make
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// a list of possible build targets.
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func SupportedPlatforms() ([]Compile, error) {
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out, err := exec.Command("go", "tool", "dist", "list", "-json").Output()
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if err != nil {
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return nil, err
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}
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var dists []dist
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err = json.Unmarshal(out, &dists)
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if err != nil {
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return nil, err
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}
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// translate from the go command's output structure
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// to our own user-facing structure
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var compiles []Compile
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for _, d := range dists {
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comp := d.toCompile()
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if d.GOARCH == "arm" {
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if d.GOOS == "linux" {
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// only linux supports ARMv5; see https://github.com/golang/go/issues/18418
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comp.ARM = "5"
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compiles = append(compiles, comp)
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}
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comp.ARM = "6"
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compiles = append(compiles, comp)
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comp.ARM = "7"
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compiles = append(compiles, comp)
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} else {
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compiles = append(compiles, comp)
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}
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}
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return compiles, nil
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}
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// dist is the structure that fits the output
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// of the `go tool dist list -json` command.
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type dist struct {
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GOOS string `json:"GOOS"`
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GOARCH string `json:"GOARCH"`
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CgoSupported bool `json:"CgoSupported"`
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}
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func (d dist) toCompile() Compile {
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return Compile{
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Platform: Platform{
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OS: d.GOOS,
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Arch: d.GOARCH,
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},
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Cgo: d.CgoSupported,
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}
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}
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