# get and set current directory
function pwd()
b = Array(Uint8,1024)
len = Csize_t[length(b),]
uv_error(:getcwd, ccall(:uv_cwd, Cint, (Ptr{Uint8}, Ptr{Csize_t}), b, len))
bytestring(b[1:len[1]-1])
end
function cd(dir::String)
uv_error("chdir $dir", ccall(:uv_chdir, Cint, (Ptr{Uint8},), dir))
end
cd() = cd(homedir())
@unix_only function cd(f::Function, dir::String, args...)
fd = ccall(:open,Int32,(Ptr{Uint8},Int32),".",0)
systemerror(:open, fd == -1)
try
cd(dir)
f(args...)
finally
systemerror(:fchdir, ccall(:fchdir,Int32,(Int32,),fd) != 0)
systemerror(:close, ccall(:close,Int32,(Int32,),fd) != 0)
end
end
@windows_only function cd(f::Function, dir::String, args...)
old = pwd()
try
cd(dir)
f(args...)
finally
cd(old)
end
end
cd(f::Function) = cd(f, homedir())
function mkdir(path::String, mode::Unsigned=0o777)
@unix_only ret = ccall(:mkdir, Int32, (Ptr{Uint8},Uint32), path, mode)
@windows_only ret = ccall(:_wmkdir, Int32, (Ptr{Uint16},), utf16(path))
systemerror(:mkdir, ret != 0)
end
function mkpath(path::String, mode::Unsigned=0o777)
isdirpath(path) && (path = dirname(path))
dir = dirname(path)
(path == dir || isdir(path)) && return
mkpath(dir, mode)
mkdir(path, mode)
end
mkdir(path::String, mode::Signed) = error("mode must be an unsigned integer; try 0o$mode")
mkpath(path::String, mode::Signed) = error("mode must be an unsigned integer; try 0o$mode")
function rm(path::String; recursive::Bool=false)
if islink(path) || !isdir(path)
@windows_only if !iswritable(path); chmod(path, 0o777); end
FS.unlink(path)
else
if recursive
for p in readdir(path)
rm(joinpath(path, p), recursive=true)
end
end
@unix_only ret = ccall(:rmdir, Int32, (Ptr{Uint8},), path)
@windows_only ret = ccall(:_wrmdir, Int32, (Ptr{Uint16},), utf16(path))
systemerror(:rmdir, ret != 0)
end
end
# The following use Unix command line facilites
cp(src::String, dst::String) = FS.sendfile(src, dst)
mv(src::String, dst::String) = FS.rename(src, dst)
touch(path::String) = run(`touch $path`)
# Obtain a temporary filename.
@unix_only function tempname()
d = get(ENV, "TMPDIR", C_NULL) # tempnam ignores TMPDIR on darwin
p = ccall(:tempnam, Ptr{Uint8}, (Ptr{Uint8},Ptr{Uint8}), d, "julia")
systemerror(:tempnam, p == C_NULL)
s = bytestring(p)
c_free(p)
return s
end
# Obtain a temporary directory's path.
@unix_only tempdir() = dirname(tempname())
# Create and return the name of a temporary file along with an IOStream
@unix_only function mktemp()
b = joinpath(tempdir(), "tmpXXXXXX")
p = ccall(:mkstemp, Int32, (Ptr{Uint8}, ), b) # modifies b
return (b, fdio(p, true))
end
@windows_only begin
function tempdir()
temppath = Array(Uint16,32767)
lentemppath = ccall(:GetTempPathW,stdcall,Uint32,(Uint32,Ptr{Uint16}),length(temppath),temppath)
if lentemppath >= length(temppath) || lentemppath == 0
error("GetTempPath failed: $(FormatMessage())")
end
resize!(temppath,lentemppath+1)
return utf8(UTF16String(temppath))
end
tempname(uunique::Uint32=uint32(0)) = tempname(tempdir(), uunique)
function tempname(temppath::String,uunique::Uint32)
tname = Array(Uint16,32767)
uunique = ccall(:GetTempFileNameW,stdcall,Uint32,(Ptr{Uint16},Ptr{Uint16},Uint32,Ptr{Uint16}),
utf16(temppath),utf16("jul"),uunique,tname)
lentname = findfirst(tname,0)-1
if uunique == 0 || lentname <= 0
error("GetTempFileName failed: $(FormatMessage())")
end
resize!(tname,lentname+1)
return utf8(UTF16String(tname))
end
function mktemp()
filename = tempname()
return (filename, open(filename,"r+"))
end
end
# Create and return the name of a temporary directory
@unix_only function mktempdir()
b = joinpath(tempdir(), "tmpXXXXXX")
p = ccall(:mkdtemp, Ptr{Uint8}, (Ptr{Uint8}, ), b)
return bytestring(p)
end
@windows_only function mktempdir()
seed::Uint32 = rand(Uint32)
dir = tempdir()
while true
if uint16(seed) == 0
seed += 1
end
filename = tempname(dir, seed)
ret = ccall(:_wmkdir, Int32, (Ptr{Uint16},), utf16(filename))
if ret == 0
return filename
end
systemerror(:mktempdir, errno()!=EEXIST)
seed += 1
end
end
function readdir(path::String)
# Allocate space for uv_fs_t struct
uv_readdir_req = zeros(Uint8, ccall(:jl_sizeof_uv_fs_t, Int32, ()))
# defined in sys.c, to call uv_fs_readdir, which sets errno on error.
file_count = ccall(:jl_readdir, Int32, (Ptr{Uint8}, Ptr{Uint8}),
path, uv_readdir_req)
systemerror("unable to read directory $path", file_count < 0)
# The list of dir entries is returned as a contiguous sequence of null-terminated
# strings, the first of which is pointed to by ptr in uv_readdir_req.
# The following lines extracts those strings into dirent
entries = ByteString[]
offset = 0
for i = 1:file_count
entry = bytestring(ccall(:jl_uv_fs_t_ptr_offset, Ptr{Uint8},
(Ptr{Uint8}, Int32), uv_readdir_req, offset))
push!(entries, entry)
offset += sizeof(entry) + 1 # offset to the next entry
end
# Clean up the request string
ccall(:jl_uv_fs_req_cleanup, Void, (Ptr{Uint8},), uv_readdir_req)
entries
end
readdir() = readdir(".")