115         os.mkfifo(name)

   115         os.mkfifo(name)

   116         os.unlink(name)

   116         os.unlink(name)

   117         return True

   117         return True

   118     except OSError:

   118     except OSError:

   119         return False

   119         return False

   120 

   123 

   121 def has_cacheable_fs():

   124 def has_cacheable_fs():

   122     from mercurial import util

   125     from mercurial import util

   123 

   126 

   124     fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix)

   127     fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix)

   284     "git": (has_git, "git command line client"),

   287     "git": (has_git, "git command line client"),

   285     "gpg": (has_gpg, "gpg client"),

   288     "gpg": (has_gpg, "gpg client"),

   286     "hardlink": (has_hardlink, "hardlinks"),

   289     "hardlink": (has_hardlink, "hardlinks"),

   287     "icasefs": (has_icasefs, "case insensitive file system"),

   290     "icasefs": (has_icasefs, "case insensitive file system"),

   288     "inotify": (has_inotify, "inotify extension support"),

   291     "inotify": (has_inotify, "inotify extension support"),

   289     "lsprof": (has_lsprof, "python lsprof module"),

   293     "lsprof": (has_lsprof, "python lsprof module"),

   290     "mtn": (has_mtn, "monotone client (>= 1.0)"),

   294     "mtn": (has_mtn, "monotone client (>= 1.0)"),

   291     "outer-repo": (has_outer_repo, "outer repo"),

   295     "outer-repo": (has_outer_repo, "outer repo"),

   292     "p4": (has_p4, "Perforce server and client"),

   296     "p4": (has_p4, "Perforce server and client"),

   293     "pyflakes": (has_pyflakes, "Pyflakes python linter"),

   297     "pyflakes": (has_pyflakes, "Pyflakes python linter"),