mirror of
https://github.com/jimeh/build-emacs-for-macos.git
synced 2026-02-19 07:16:39 +00:00
Jim Myhrberg
6e2b9aa44a
This serves as an alternative to Homebrew. It should be much more stable and cause less headaches over time for automated builds. There should be no change to the end user experience of using the build script, as it should still work with and use Homebrew by default. Additionally, Nix provides older Apple SDKs, allowing us to run against macOS 11.x SDKs. This allows the resulting Emacs.app builds to be compatible with macOS 11.x and later versions. In testing, this seems to be the case on macOS 11.x (x86_64) and macOS 12.x (arm64).
75 lines
1.8 KiB
Go
75 lines
1.8 KiB
Go
package osinfo
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import (
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"os"
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"os/exec"
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"strconv"
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"strings"
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)
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type OSInfo struct {
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Name string `yaml:"name" json:"name"`
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Version string `yaml:"version" json:"version"`
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SDKVersion string `yaml:"sdk_version" json:"sdk_version"`
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Arch string `yaml:"arch" json:"arch"`
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}
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func New() (*OSInfo, error) {
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version, err := exec.Command("sw_vers", "-productVersion").Output()
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if err != nil {
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return nil, err
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}
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sdkVersion := os.Getenv("MACOSX_DEPLOYMENT_TARGET")
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if sdkVersion == "" {
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var ver []byte
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ver, err = exec.Command("xcrun", "--show-sdk-version").Output()
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if err != nil {
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return nil, err
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}
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sdkVersion = string(ver)
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}
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arch, err := exec.Command("uname", "-m").CombinedOutput()
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if err != nil {
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return nil, err
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}
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return &OSInfo{
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Name: "macOS",
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Version: strings.TrimSpace(string(version)),
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SDKVersion: strings.TrimSpace(sdkVersion),
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Arch: strings.TrimSpace(string(arch)),
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}, nil
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}
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// DistinctVersion returns macOS version down to a distinct "major" version. For
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// macOS 10.x, this will include the first two numeric parts of the version
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// (10.15), while for 11.x and later, the first numeric part is enough (11).
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func (s *OSInfo) DistinctVersion() string {
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return s.distinctVersion(s.Version)
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}
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// DistinctSDKVersion returns macOS version down to a distinct "major" version.
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// For macOS 10.x, this will include the first two numeric parts of the version
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// (10.15), while for 11.x and later, the first numeric part is enough (11).
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func (s *OSInfo) DistinctSDKVersion() string {
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return s.distinctVersion(s.SDKVersion)
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}
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func (s *OSInfo) distinctVersion(version string) string {
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parts := strings.Split(version, ".")
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if n, _ := strconv.Atoi(parts[0]); n >= 11 {
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return parts[0]
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}
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max := len(parts)
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if max > 2 {
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max = 2
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}
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return strings.Join(parts[0:max], ".")
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}
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