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comparison mercurial/util.py @ 3999:0b740dcf0cf1

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symlinks: add basic symlink functions to util.py
author Matt Mackall <mpm@selenic.com>
date Fri, 29 Dec 2006 20:04:31 -0600
parents 315d47991fd4
children 3297aa945cf2
comparison
equal deleted inserted replaced
3998:315d47991fd4 3999:0b740dcf0cf1
785 return True 785 return True
786 786
787 def set_exec(f, mode): 787 def set_exec(f, mode):
788 pass 788 pass
789 789
790 def set_link(f, mode):
791 pass
792
790 def set_binary(fd): 793 def set_binary(fd):
791 msvcrt.setmode(fd.fileno(), os.O_BINARY) 794 msvcrt.setmode(fd.fileno(), os.O_BINARY)
792 795
793 def pconvert(path): 796 def pconvert(path):
794 return path.replace("\\", "/") 797 return path.replace("\\", "/")
870 # Turn on +x for every +r bit when making a file executable 873 # Turn on +x for every +r bit when making a file executable
871 # and obey umask. 874 # and obey umask.
872 os.chmod(f, s | (s & 0444) >> 2 & ~_umask) 875 os.chmod(f, s | (s & 0444) >> 2 & ~_umask)
873 else: 876 else:
874 os.chmod(f, s & 0666) 877 os.chmod(f, s & 0666)
878
879 def is_link(f):
880 """check whether a file is a symlink"""
881 return (os.lstat(f).st_mode & 0120000 == 0120000)
882
883 def set_link(f, mode):
884 """make a file a symbolic link/regular file
885
886 if a file is changed to a link, its contents become the link data
887 if a link is changed to a file, its link data become its contents
888 """
889
890 m = is_link(f)
891 if m == bool(mode):
892 return
893
894 if mode: # switch file to link
895 data = file(f).read()
896 os.unlink(f)
897 os.symlink(data, f)
898 else:
899 data = os.readlink(f)
900 os.unlink(f)
901 file(f, "w").write(data)
875 902
876 def set_binary(fd): 903 def set_binary(fd):
877 pass 904 pass
878 905
879 def pconvert(path): 906 def pconvert(path):