From 9c7f48af6e8b43960e0f51a9d1bca249421be685 Mon Sep 17 00:00:00 2001 From: axtloss Date: Thu, 25 May 2023 20:00:54 +0200 Subject: Change mount function and add chmod --- src/main/java/io/github/jshipit/SysUtils.java | 34 +++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 src/main/java/io/github/jshipit/SysUtils.java (limited to 'src/main/java/io/github/jshipit/SysUtils.java') diff --git a/src/main/java/io/github/jshipit/SysUtils.java b/src/main/java/io/github/jshipit/SysUtils.java new file mode 100644 index 0000000..3ea48fb --- /dev/null +++ b/src/main/java/io/github/jshipit/SysUtils.java @@ -0,0 +1,34 @@ +package io.github.jshipit; + +import com.sun.jna.Library; +import com.sun.jna.Native; +import com.sun.jna.Platform; + +public class SysUtils { + + interface CLibrary extends Library { + public int chmod(String path, int mode); + } + + public void chmod(String path, int mode) { + CLibrary libc = (CLibrary) Native.load("c", CLibrary.class); + libc.chmod(path, mode); + } + public void overlayMount(String[] lower, String upper, String target, String work) { + if (Platform.isLinux()) { + + ProcessBuilder pb = new ProcessBuilder("unshare", "--user", "--map-root-user", "--mount", "mount", "-t", "overlay", "overlay", "-o", "lowerdir="+String.join(":", lower)+",upperdir="+upper+",workdir="+work, target); + pb.inheritIO(); + try { + Process p = pb.start(); + p.waitFor(); + } catch (Exception e) { + throw new RuntimeException(e); + } + + } else { + System.out.println("Platform not supported."); + System.out.println("mount -t overlay overlay -o lowerdir="+String.join(":", lower)+",upperdir="+upper+",workdir="+work+" "+target); + } + } +} -- cgit v1.2.3