dorkbox/Utilities
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Cache getInfo for linux/unix

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This commit is contained in:
nathan 2017-07-18 02:20:08 +02:00
parent a5d7a7293e
commit 3ab5076d9b
1 changed files with 21 additions and 9 deletions
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30
src/dorkbox/util/OSUtil.java
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@ -216,6 +216,7 @@ class OSUtil {
List<File> releaseFiles = new LinkedList<File>();
int totalLength = 0;
// looking for files like /etc/os-release
File file = new File("/etc");
if (file.isDirectory()) {
File[] list = file.listFiles();
@ -292,17 +293,19 @@ class OSUtil {
/**
* @param id the info ID to check, ie: ubuntu, arch, debian, etc... This is what the OS vendor uses to ID their OS.
*
* @return true if this OS is identified as the specified ID.
*/
private static String info = null;
public static
boolean getInfo(String id) {
String output = getInfo();
if (info == null) {
info = getInfo();
}
// ID=linuxmint/fedora/arch/ubuntu/etc
return output.contains("ID=" + id +"\n");
return info.contains("ID=" + id +"\n");
}
private static volatile Boolean isArch = null;
private static Boolean isArch = null;
public static
boolean isArch() {
if (isArch == null) {
@ -311,7 +314,7 @@ class OSUtil {
return isArch;
}
private static volatile Boolean isDebian = null;
private static Boolean isDebian = null;
public static
boolean isDebian() {
if (isDebian == null) {
@ -320,7 +323,7 @@ class OSUtil {
return isDebian;
}
private static volatile Boolean isElementaryOS = null;
private static Boolean isElementaryOS = null;
public static
boolean isElementaryOS() {
if (isElementaryOS == null) {
@ -338,7 +341,7 @@ class OSUtil {
return isElementaryOS;
}
private static volatile Boolean isFedora = null;
private static Boolean isFedora = null;
public static
boolean isFedora() {
if (isFedora == null) {
@ -347,7 +350,7 @@ class OSUtil {
return isFedora;
}
private static volatile Boolean isLinuxMint = null;
private static Boolean isLinuxMint = null;
public static
boolean isLinuxMint() {
if (isLinuxMint == null) {
@ -356,7 +359,7 @@ class OSUtil {
return isLinuxMint;
}
private static volatile Boolean isUbuntu = null;
private static Boolean isUbuntu = null;
public static
boolean isUbuntu() {
if (isUbuntu == null) {
@ -365,6 +368,15 @@ class OSUtil {
return isUbuntu;
}
private static Boolean isKali = null;
public static
boolean isKali() {
if (isKali == null) {
isKali = getInfo("kali");
}
return isKali;
}
public static
boolean isRoot() {
// this means we are running as sudo