56 lines
1.5 KiB
Perl
56 lines
1.5 KiB
Perl
|
#!/usr/local/bin/perl
|
||
|
|
|
||
|
|
# mklink.pl
|
||
|
|
|
||
|
|
# The first command line argument is a non-empty relative path
|
||
|
|
# specifying the "from" directory.
|
||
|
|
# Each other argument is a file name not containing / and
|
||
|
|
# names a file in the current directory.
|
||
|
|
#
|
||
|
|
# For each of these files, we create in the "from" directory a link
|
||
|
|
# of the same name pointing to the local file.
|
||
|
|
#
|
||
|
|
# We assume that the directory structure is a tree, i.e. that it does
|
||
|
|
# not contain symbolic links and that the parent of / is never referenced.
|
||
|
|
# Apart from this, this script should be able to handle even the most
|
||
|
|
# pathological cases.
|
||
|
|
|
||
|
|
my $from = shift;
|
||
|
|
my @files = @ARGV;
|
||
|
|
|
||
|
|
my @from_path = split(/\//, $from);
|
||
|
|
my $pwd = `pwd`;
|
||
|
|
chop($pwd);
|
||
|
|
my @pwd_path = split(/\//, $pwd);
|
||
|
|
|
||
|
|
my @to_path = ();
|
||
|
|
|
||
|
|
my $dirname;
|
||
|
|
foreach $dirname (@from_path) {
|
||
|
|
|
||
|
|
# In this loop, @to_path always is a relative path from
|
||
|
|
# @pwd_path (interpreted is an absolute path) to the original pwd.
|
||
|
|
|
||
|
|
# At the end, @from_path (as a relative path from the original pwd)
|
||
|
|
# designates the same directory as the absolute path @pwd_path,
|
||
|
|
# which means that @to_path then is a path from there to the original pwd.
|
||
|
|
|
||
|
|
next if ($dirname eq "" || $dirname eq ".");
|
||
|
|
|
||
|
|
if ($dirname eq "..") {
|
||
|
|
@to_path = (pop(@pwd_path), @to_path);
|
||
|
|
} else {
|
||
|
|
@to_path = ("..", @to_path);
|
||
|
|
push(@pwd_path, $dirname);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
my $to = join('/', @to_path);
|
||
|
|
|
||
|
|
my $file;
|
||
|
|
foreach $file (@files) {
|
||
|
|
# print "ln -s $to/$file $from/$file\n";
|
||
|
|
symlink("$to/$file", "$from/$file");
|
||
|
|
print $file . " => $from/$file\n";
|
||
|
|
}
|