Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

I *like* it!

A fellow Monk and I recently wrote a tool like this ourselves, but the in-memory eval() isn't a capability of our implementation. Anyway, I have a slight improvement to offer on your script. It concerns the mundane issue of where to save a file on disk. Your default /tmp would be fine on a single-user workstation but I thought about a multi-user system where security / privacy might be a greater concern, and one would want to confine one's activities to one's ~USER/ ($HOME) dir.

This small patch makes sure that such a directory exists before allowing the script to continue if writing to disk is going to be needed.

Here's the germane portion of what this change entails:

use File::Glob qw(:glob); use File::Spec qw(file_name_is_absolute catfile); # Configure this to an existing dir in your $HOME: my $home_space = ''; # /end user config. my ($HOME, $directory); if ($opt_m or $opt_M or $opt_f or $opt_F) { my $filename = $opt_f || $opt_F; die "Don't pass an absolute path!\n" if ($filename and File::Spec->file_name_is_absolute($filename)); $HOME = (bsd_glob('~'.$ENV{LOGNAME} , GLOB_TILDE | GLOB_MARK))[0]; $HOME = ($HOME =~s%/\Z%%) ? $HOME : ''; # Be kind to some Win32 users, comment this out: # die "No HOME found, no place to stash the code!\n" if not $HOME; # Directory to save fetched code in: $directory = $home_space ? File::Spec->catfile($HOME, $home_space) : $HOME; die "$directory does not exists.\n" if not -e $directory; }

Fun.

    Soren/Intrepid

-- 
Try my n.y.p.m.blue Perl Monks CSS Theme
(edit "On-Site CSS Markup" in your User Settings)

In reply to Re: Run and/or download code directly from perlmonk nodes. by Intrepid
in thread Run and/or download code directly from perlmonk nodes. by Dog and Pony

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others surveying the Monastery: (2)
As of 2022-05-24 03:21 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Do you prefer to work remotely?



    Results (82 votes). Check out past polls.

    Notices?