A: Using ExecProcess() to get file time stamp

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The command line

PHP Code:

[[dir /t:w "F:\my_file"]] 


works in io.popen() returning file handle but doesn't in ExecProcess() returning nil

Tried

PHP Code:

[[cmd.exe /C dir /t:w "F:\my_file"]] 


which returns code 259

In both cases it's vividly launches the command (its window flashes) but nothing useful is returned

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UPD:

As some say, take counsel of your pillow (not sure how idiomatic it is), but today this works

PHP Code:

reaper.ExecProcess([[cmd.exe /C dir /t:w "F:\my_file"]], 0) 


guess it depends on the time of day


for Windows only

PHP Code:

function get_file_timestamp(file_name, dir) -- // both args are strings; dir MUST NOT end with separator, if dir isn't provided file arg must be full path
local command
local capt
    if not dir then -- // time without seconds
    command, capt = 'cmd.exe /C dir \tw "'..file_name..'"', '.+\n(.-%d+:%d+)'
    return reaper.ExecProcess('cmd.exe /C dir \tw "'..file_name..'"', 0):match('.+\n(.-%d+:%d+)')
    else -- // time with seconds
    local dir = #dir > 3 and dir:match('.+[\\/]$') and dir:match('(.+)[\\/]') or dir -- // remove last separator if any in dir other than the root
    local dir = #dir == 3 and dir or '"'..dir..'"' -- when not root as root doesn't allow quotes
    command, capt = 'forfiles /P '..dir..' /M "'..file_name..'" /C "cmd /c echo @fdate @ftime"', '.+\n(.+)\n' -- // excluding trailing empty line
    end
return reaper.ExecProcess(command, 0):match(capt)
end 


streamlined

PHP Code:

function get_file_timestamp(full_file_path) -- // timestamp with seconds
local dir, file_name = full_file_path:match('(.+)[\\/](.+)') -- // makes sure that dir doesn't end with separator
local dir = #dir == 3 and dir or '"'..dir..'"' -- // when not root as root doesn't allow quotes
return reaper.ExecProcess('forfiles /P '..dir..' /M "'..file_name..'" /C "cmd /c echo @fdate @ftime"', 0):match('.+\n(.+)\n') -- // excluding trailing empty line
end 


and thanks to cfillion for his replies on the forum, otherwise i wouldn't know where to start
.
.

[amagalma]

You could use:

retval, size, accessedTime, modifiedTime, cTime, deviceID, deviceSpecialID, inode, mode, numLinks, ownerUserID, ownerGroupID = reaper.JS_File_Stat( filePath )

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Originally Posted by amagalma

You could use:

Thank you, didn't notice the function, although i strive to avoid dependencies.