Revision 14545,
1.3 KB
checked in by ghudson, 24 years ago
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This commit was generated by cvs2svn to compensate for changes in r14544,
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1 | package blib; |
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2 | |
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3 | =head1 NAME |
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4 | |
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5 | blib - Use MakeMaker's uninstalled version of a package |
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6 | |
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7 | =head1 SYNOPSIS |
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8 | |
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9 | perl -Mblib script [args...] |
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10 | |
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11 | perl -Mblib=dir script [args...] |
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12 | |
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13 | =head1 DESCRIPTION |
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14 | |
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15 | Looks for MakeMaker-like I<'blib'> directory structure starting in |
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16 | I<dir> (or current directory) and working back up to five levels of '..'. |
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17 | |
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18 | Intended for use on command line with B<-M> option as a way of testing |
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19 | arbitary scripts against an uninstalled version of a package. |
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20 | |
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21 | However it is possible to : |
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22 | |
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23 | use blib; |
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24 | or |
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25 | use blib '..'; |
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26 | |
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27 | etc. if you really must. |
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28 | |
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29 | =head1 BUGS |
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30 | |
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31 | Pollutes global name space for development only task. |
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32 | |
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33 | =head1 AUTHOR |
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34 | |
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35 | Nick Ing-Simmons nik@tiuk.ti.com |
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36 | |
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37 | =cut |
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38 | |
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39 | use Cwd; |
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40 | |
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41 | use vars qw($VERSION); |
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42 | $VERSION = '1.00'; |
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43 | |
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44 | sub import |
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45 | { |
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46 | my $package = shift; |
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47 | my $dir = getcwd; |
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48 | if ($^O eq 'VMS') { ($dir = VMS::Filespec::unixify($dir)) =~ s-/\z--; } |
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49 | if (@_) |
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50 | { |
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51 | $dir = shift; |
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52 | $dir =~ s/blib\z//; |
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53 | $dir =~ s,/+\z,,; |
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54 | $dir = '.' unless ($dir); |
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55 | die "$dir is not a directory\n" unless (-d $dir); |
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56 | } |
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57 | my $i = 5; |
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58 | while ($i--) |
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59 | { |
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60 | my $blib = "${dir}/blib"; |
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61 | if (-d $blib && -d "$blib/arch" && -d "$blib/lib") |
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62 | { |
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63 | unshift(@INC,"$blib/arch","$blib/lib"); |
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64 | warn "Using $blib\n"; |
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65 | return; |
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66 | } |
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67 | $dir .= "/.."; |
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68 | } |
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69 | die "Cannot find blib even in $dir\n"; |
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70 | } |
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71 | |
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72 | 1; |
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