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#!/usr/local/bin/perl
#
# This script installs the bib_gen program in all the appropriate places
# after changing the paths in the scripts. You probably shouldn't run this
# script directly; see the instructions in the file INSTALL for how to use it.
#
# Usage:
# install.pl [-prefix dir] list-of-files
#
# -prefix specifies the output directory, e.g., /usr/local. If this is
# blank, then we install the product in place.
#
# This script is intended to be called from a makefile, so don't use it
# directly.
#
require 5.002;
use Config;
use Cwd;
use FileHandle;
$prefix = '/usr/local'; # Set up default values of variables.
#
# First find out where perl is in our path:
#
$perlbin = "$Config{'bin'}/perl";
unless (-x $perlbin) { # Not correctly specified by Config?
foreach (split(/:/, $ENV{'PATH'})) { # Look in the path.
if (-x "$_/perl") { # Found it?
$perlbin = "$_/perl";
last;
}
}
}
-x $perlbin or die("Can't find executable perl from Config or from path\n");
#
# Now find out where this is being installed from:
#
($srcdir = $0) =~ s([^/]+$)(); # Get the directory name.
unless ($srcdir =~ m(^/)) { # Is the full path specified?
$srcdir = cwd . ($srcdir =~ /^\.?/ ? "/$srcdir" : ""); # Make the path absolute.
$srcdir =~ s@/\.?$@@; # Trim useless /. off the end.
}
#
# Parse command line options:
#
@files = ();
while ($_ = shift(@ARGV)) { # Look at the next argument.
if (/^-/) { # Is this an option?
$_ eq '-prefix' or die("usage: install.pl [-prefix dir] list-of-files\n");
$prefix = shift(@ARGV); # Take the next argument as the prefix.
$prefix =~ s(/$)(); # Strip off a trailing slash, if present.
} else { # It's a file:
push(@files, $_); # Just remember it.
}
}
unless ($prefix =~ m(^/)) { # Is the full path specified?
$prefix = cwd . ($prefix =~ /^\.?$/ ? "/$prefix" : ""); # Make the path absolute.
$prefix =~ s@/\.$@@; # Trim useless /. off the end.
}
if ($prefix) { # Was a new location specified?
-d $prefix || mkdir($prefix, 0755) ||
die("Could not create $prefix--$!\n");
-d "$prefix/man" || mkdir("$prefix/man", 0755) ||
die("Could not create $prefix/man--$!\n");
-d "$prefix/man/man1" || mkdir("$prefix/man/man1", 0755) ||
die("Could not create $prefix/man--$!\n");
} else {
$prefix = $srcdir; # Prefix not specified--leave files in place.
}
#
# Start installing the files:
#
foreach (@files) {
©_with_substitutions($_);
}
#
# Now generate the man pages:
#
foreach (grep /\.pod$/, @files) { # Take all of the pod files:
my $manfile = $_;
$manfile =~ s(.*/)(); # Strip off the directory name.
$manfile =~ s/\.pod$/.1/; # Replace the suffix.
system("pod2man --section=1 $srcdir/$_ > $prefix/man/man1/$manfile");
}
#
# Copy a file, making appropriate substitutions. Since none of the files
# we copy is large, we just read it into memory and then write it out.
# Arguments:
# 1) The name. It is copied from $srcdir to $prefix.
#
sub copy_with_substitutions {
my ($fname) = @_; # Access the arguments.
my $mode = (stat("$srcdir/$fname"))[2]; # Get the file protections.
if ($srcdir eq $prefix) { # Overwriting the output?
rename("$srcdir/$fname", "$srcdir/$fname~"); # For safety, keep the old one around.
open(INFILE, "$srcdir/$fname~") ||
die("Can't open file $srcdir/$fname~--$!\n");
} else { # Copying to a different place:
#
# Make sure the directory exists:
#
my @dirs = split(/\//, $fname); # Get the directories.
pop(@dirs); # Get rid of the file name at the end.
my $dirstr = $prefix; # Start with the directories that already exist.
foreach (@dirs) {
-d "$dirstr/$_" || mkdir("$dirstr/$_", 0755) || # Make the directory.
die("Could not create directory $dirstr/$_--$!\n");
$dirstr .= "/$_"; # Accumulate the directory string.
}
open(INFILE, "$srcdir/$fname") ||
die("Can't open file $srcdir/$fname--$!\n");
}
local $/ = undef; # Slurp in the whole file.
$_ = <INFILE>;
close(INFILE); # Done with this file.
s/^#!.*perl/#!$perlbin/; # Change the path to perl.
s(\$PREFIX = \"[^\"]+\")(\$PREFIX = \"$prefix\");
# Change the path to the installed files.
open(OUTFILE, "> $prefix/$fname") ||
die("Can't create $prefix/$fname--$!\n");
print OUTFILE $_; # Print the modified text.
close(OUTFILE); # Done with this file.
chmod $mode, "$prefix/$fname"; # Make sure it has the correct protections.
}
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