c7e5e3c9c2
The `distro` package is now used for distro definitions supported by osbuild-composer, not for introspecting the Host system. Move `GetRedHatRelease()` and `GetHostDistroName()` functions to the `common` package.
79 lines
1.9 KiB
Go
79 lines
1.9 KiB
Go
package common
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import (
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"bufio"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"strings"
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)
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func GetHostDistroName() (string, bool, bool, error) {
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f, err := os.Open("/etc/os-release")
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if err != nil {
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return "", false, false, err
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}
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defer f.Close()
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osrelease, err := readOSRelease(f)
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if err != nil {
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return "", false, false, err
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}
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isStream := osrelease["NAME"] == "CentOS Stream"
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// NOTE: We only consider major releases up until rhel 8.4
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version := strings.Split(osrelease["VERSION_ID"], ".")
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name := osrelease["ID"] + "-" + version[0]
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if osrelease["ID"] == "rhel" && ((version[0] == "8" && version[1] >= "4") || version[0] == "9") {
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name = name + version[1]
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}
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// TODO: We should probably index these things by the full CPE
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beta := strings.Contains(osrelease["CPE_NAME"], "beta")
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return name, beta, isStream, nil
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}
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// GetRedHatRelease returns the content of /etc/redhat-release
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// without the trailing new-line.
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func GetRedHatRelease() (string, error) {
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raw, err := ioutil.ReadFile("/etc/redhat-release")
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if err != nil {
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return "", fmt.Errorf("cannot read /etc/redhat-release: %v", err)
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}
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//Remove the trailing new-line.
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redHatRelease := strings.TrimSpace(string(raw))
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return redHatRelease, nil
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}
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func readOSRelease(r io.Reader) (map[string]string, error) {
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osrelease := make(map[string]string)
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scanner := bufio.NewScanner(r)
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for scanner.Scan() {
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line := strings.TrimSpace(scanner.Text())
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if len(line) == 0 {
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continue
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}
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parts := strings.SplitN(line, "=", 2)
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if len(parts) != 2 {
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return nil, errors.New("readOSRelease: invalid input")
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}
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key := strings.TrimSpace(parts[0])
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value := strings.TrimSpace(parts[1])
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if value[0] == '"' {
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if len(value) < 2 || value[len(value)-1] != '"' {
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return nil, errors.New("readOSRelease: invalid input")
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}
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value = value[1 : len(value)-1]
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}
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osrelease[key] = value
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}
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return osrelease, nil
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}
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