Workaround sublime text 3 umask bug, always adding 0022 to the mask (deny write to group/others) with LD_PRELOAD hack.

fix_umask.c

/*
compile with:
  gcc -shared -fPIC fix_umask.c -o fix_umask.so

edit /usr/bin/subl to include (fix the path to fix_umask.so if necessary):

  #!/bin/sh
  export LD_PRELOAD=/opt/sublime_text/fix_umask.so
  exec /opt/sublime_text/sublime_text "$@"

*/


#include <sys/types.h>
#include <sys/stat.h>

#define _GNU_SOURCE         /* See feature_test_macros(7) */
#include <unistd.h>
#include <sys/syscall.h>   /* For SYS_xxx definitions */

mode_t umask(mode_t mask) {
	mask |= 0022;
	return syscall(SYS_umask, mask);
}

buddy, I am afraid this workaround is not working :( Still having unexpected permissions
linux mint 16 - sublime text build 3059

Yes it does, at least for me. Thank you very much!

@dvdvck check that you are starting sublime from the command line for the first time. It might be that the .desktop file execs the binary and bypasses the script.