Commit | Line | Data |
4b6d56d3 |
1 | package ExtUtils::Install; |
2 | |
08ad6bd5 |
3 | use Exporter; |
4 | use SelfLoader; |
5 | use Carp (); |
6 | |
4b6d56d3 |
7 | @ISA = ('Exporter'); |
08ad6bd5 |
8 | @EXPORT = ('install','uninstall','pm_to_blib'); |
9 | $Is_VMS = $^O eq 'VMS'; |
10 | |
11 | #use vars qw( @EXPORT @ISA $Is_VMS ); |
4b6d56d3 |
12 | #use strict; |
13 | |
08ad6bd5 |
14 | 1; |
15 | |
16 | sub ExtUtils::Install::install; |
17 | sub ExtUtils::Install::uninstall; |
18 | sub ExtUtils::Install::pm_to_blib; |
19 | sub ExtUtils::Install::my_cmp; |
20 | |
21 | __DATA__ |
22 | |
4b6d56d3 |
23 | sub install { |
24 | my($hash,$verbose,$nonono) = @_; |
25 | $verbose ||= 0; |
26 | $nonono ||= 0; |
08ad6bd5 |
27 | |
28 | use Cwd qw(cwd); |
29 | use ExtUtils::MakeMaker; # to implement a MY class |
30 | use File::Basename qw(dirname); |
31 | use File::Copy qw(copy); |
32 | use File::Find qw(find); |
33 | use File::Path qw(mkpath); |
34 | # require "auto/ExtUtils/Install/my_cmp.al"; # Hairy, but for the first |
35 | # time use we are in a different directory when autoload happens, so |
36 | # the relativ path to ./blib is ill. |
37 | |
4b6d56d3 |
38 | my(%hash) = %$hash; |
08ad6bd5 |
39 | my(%pack, %write, $dir); |
4b6d56d3 |
40 | local(*DIR, *P); |
41 | for (qw/read write/) { |
42 | $pack{$_}=$hash{$_}; |
43 | delete $hash{$_}; |
44 | } |
08ad6bd5 |
45 | my($source_dir_or_file); |
46 | foreach $source_dir_or_file (sort keys %hash) { |
4b6d56d3 |
47 | #Check if there are files, and if yes, look if the corresponding |
48 | #target directory is writable for us |
08ad6bd5 |
49 | opendir DIR, $source_dir_or_file or next; |
4b6d56d3 |
50 | while ($_ = readdir DIR) { |
51 | next if $_ eq "." || $_ eq ".." || $_ eq ".exists"; |
08ad6bd5 |
52 | if (-w $hash{$source_dir_or_file} || mkpath($hash{$source_dir_or_file})) { |
4b6d56d3 |
53 | last; |
54 | } else { |
08ad6bd5 |
55 | Carp::croak("You do not have permissions to install into $hash{$source_dir_or_file}"); |
4b6d56d3 |
56 | } |
57 | } |
58 | closedir DIR; |
59 | } |
60 | if (-f $pack{"read"}) { |
08ad6bd5 |
61 | open P, $pack{"read"} or Carp::croak("Couldn't read $pack{'read'}"); |
4b6d56d3 |
62 | # Remember what you found |
63 | while (<P>) { |
64 | chomp; |
65 | $write{$_}++; |
66 | } |
67 | close P; |
68 | } |
69 | my $cwd = cwd(); |
08ad6bd5 |
70 | my $umask = umask 0 unless $Is_VMS; |
4b6d56d3 |
71 | |
72 | # This silly reference is just here to be able to call MY->catdir |
73 | # without a warning (Waiting for a proper path/directory module, |
08ad6bd5 |
74 | # Charles!) |
4b6d56d3 |
75 | my $MY = {}; |
76 | bless $MY, 'MY'; |
77 | my($source); |
78 | MOD_INSTALL: foreach $source (sort keys %hash) { |
79 | #copy the tree to the target directory without altering |
80 | #timestamp and permission and remember for the .packlist |
81 | #file. The packlist file contains the absolute paths of the |
82 | #install locations. AFS users may call this a bug. We'll have |
83 | #to reconsider how to add the means to satisfy AFS users also. |
84 | chdir($source) or next; |
85 | find(sub { |
86 | my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size, |
87 | $atime,$mtime,$ctime,$blksize,$blocks) = stat; |
88 | return unless -f _; |
89 | return if $_ eq ".exists"; |
90 | my $targetdir = $MY->catdir($hash{$source},$File::Find::dir); |
91 | my $targetfile = $MY->catfile($targetdir,$_); |
92 | my $diff = 0; |
93 | |
94 | if ( -f $targetfile && -s _ == $size) { |
95 | # We have a good chance, we can skip this one |
08ad6bd5 |
96 | $diff = my_cmp($_,$targetfile); |
4b6d56d3 |
97 | } else { |
98 | print "$_ differs\n" if $verbose>1; |
99 | $diff++; |
100 | } |
101 | |
102 | if ($diff){ |
08ad6bd5 |
103 | if (-f $targetfile){ |
104 | unlink $targetfile or Carp::croak("Couldn't unlink $targetfile"); |
105 | } else { |
106 | mkpath($targetdir,0,0755) unless $nonono; |
107 | print "mkpath($targetdir,0,0755)\n" if $verbose>1; |
108 | } |
4b6d56d3 |
109 | copy($_,$targetfile) unless $nonono; |
110 | print "Installing $targetfile\n" if $verbose; |
08ad6bd5 |
111 | utime($atime,$mtime + $Is_VMS,$targetfile) unless $nonono>1; |
4b6d56d3 |
112 | print "utime($atime,$mtime,$targetfile)\n" if $verbose>1; |
113 | chmod $mode, $targetfile; |
114 | print "chmod($mode, $targetfile)\n" if $verbose>1; |
115 | } else { |
116 | print "Skipping $targetfile (unchanged)\n"; |
117 | } |
118 | |
119 | $write{$targetfile}++; |
120 | |
121 | }, "."); |
08ad6bd5 |
122 | chdir($cwd) or Carp::croak("Couldn't chdir to $cwd: $!"); |
4b6d56d3 |
123 | } |
08ad6bd5 |
124 | umask $umask unless $Is_VMS; |
4b6d56d3 |
125 | if ($pack{'write'}) { |
126 | $dir = dirname($pack{'write'}); |
127 | mkpath($dir,0,0755); |
128 | print "Writing $pack{'write'}\n"; |
08ad6bd5 |
129 | open P, ">$pack{'write'}" or Carp::croak("Couldn't write $pack{'write'}: $!"); |
4b6d56d3 |
130 | for (sort keys %write) { |
131 | print P "$_\n"; |
132 | } |
133 | close P; |
134 | } |
135 | } |
136 | |
08ad6bd5 |
137 | sub my_cmp { |
138 | my($one,$two) = @_; |
139 | local(*F,*T); |
140 | my $diff = 0; |
141 | open T, $two or return 1; |
142 | open F, $one or Carp::croak("Couldn't open $one: $!"); |
143 | my($fr, $tr, $fbuf, $tbuf, $size); |
144 | $size = 1024; |
145 | # print "Reading $one\n"; |
146 | while ( $fr = read(F,$fbuf,$size)) { |
147 | unless ( |
148 | $tr = read(T,$tbuf,$size) and |
149 | $tbuf eq $fbuf |
150 | ){ |
151 | # print "diff "; |
152 | $diff++; |
153 | last; |
154 | } |
155 | # print "$fr/$tr "; |
156 | } |
157 | # print "\n"; |
158 | close F; |
159 | close T; |
160 | $diff; |
161 | } |
162 | |
4b6d56d3 |
163 | sub uninstall { |
164 | my($fil,$verbose,$nonono) = @_; |
165 | die "no packlist file found: $fil" unless -f $fil; |
166 | local *P; |
08ad6bd5 |
167 | open P, $fil or Carp::croak("uninstall: Could not read packlist file $fil: $!"); |
4b6d56d3 |
168 | while (<P>) { |
169 | chomp; |
170 | print "unlink $_\n" if $verbose; |
08ad6bd5 |
171 | unlink($_) || Carp::carp("Couldn't unlink $_") unless $nonono; |
4b6d56d3 |
172 | } |
173 | print "unlink $fil\n" if $verbose; |
08ad6bd5 |
174 | unlink($fil) || Carp::carp("Couldn't unlink $fil") unless $nonono; |
175 | } |
176 | |
177 | sub pm_to_blib { |
178 | my($fromto,$autodir) = @_; |
179 | |
180 | use File::Basename qw(dirname); |
181 | use File::Copy qw(copy); |
182 | use File::Path qw(mkpath); |
183 | use AutoSplit; |
184 | |
185 | my $umask = umask 0022 unless $Is_VMS; |
186 | mkpath($autodir,0,0755); |
187 | foreach (keys %$fromto) { |
188 | next if -f $fromto->{$_} && -M $fromto->{$_} < -M $_; |
189 | unless (my_cmp($_,$fromto->{$_})){ |
190 | print "Skip $fromto->{$_} (unchanged)\n"; |
191 | next; |
192 | } |
193 | if (-f $fromto->{$_}){ |
194 | unlink $fromto->{$_} or Carp::carp("Couldn't unlink $fromto->{$_}"); |
195 | } else { |
196 | mkpath(dirname($fromto->{$_}),0,0755); |
197 | } |
198 | copy($_,$fromto->{$_}); |
199 | chmod((stat)[2],$fromto->{$_}); |
200 | print "cp $_ $fromto->{$_}\n"; |
201 | next unless /\.pm$/; |
202 | autosplit($fromto->{$_},$autodir); |
203 | } |
204 | umask $umask unless $Is_VMS; |
4b6d56d3 |
205 | } |
206 | |
207 | 1; |
208 | |
209 | __END__ |
210 | |
211 | =head1 NAME |
212 | |
213 | ExtUtils::Install - install files from here to there |
214 | |
215 | =head1 SYNOPSIS |
216 | |
217 | B<use ExtUtils::Install;> |
218 | |
219 | B<install($hashref,$verbose,$nonono);> |
220 | |
221 | B<uninstall($packlistfile,$verbose,$nonono);> |
222 | |
08ad6bd5 |
223 | B<pm_to_blib($hashref);> |
224 | |
4b6d56d3 |
225 | =head1 DESCRIPTION |
226 | |
08ad6bd5 |
227 | Both install() and uninstall() are specific to the way |
4b6d56d3 |
228 | ExtUtils::MakeMaker handles the installation and deinstallation of |
229 | perl modules. They are not designed as general purpose tools. |
230 | |
231 | install() takes three arguments. A reference to a hash, a verbose |
232 | switch and a don't-really-do-it switch. The hash ref contains a |
233 | mapping of directories: each key/value pair is a combination of |
234 | directories to be copied. Key is a directory to copy from, value is a |
235 | directory to copy to. The whole tree below the "from" directory will |
236 | be copied preserving timestamps and permissions. |
237 | |
238 | There are two keys with a special meaning in the hash: "read" and |
239 | "write". After the copying is done, install will write the list of |
240 | target files to the file named by $hashref->{write}. If there is |
241 | another file named by $hashref->{read}, the contents of this file will |
242 | be merged into the written file. The read and the written file may be |
243 | identical, but on AFS it is quite likely, people are installing to a |
244 | different directory than the one where the files later appear. |
245 | |
246 | uninstall() takes as first argument a file containing filenames to be |
247 | unlinked. The second argument is a verbose switch, the third is a |
248 | no-don't-really-do-it-now switch. |
249 | |
08ad6bd5 |
250 | pm_to_blib() takes a hashref as the first argument and copies all keys |
251 | of the hash to the corresponding values efficiently. Filenames with |
252 | the extension pm are autosplit. Second argument is the autosplit |
253 | directory. |
4b6d56d3 |
254 | |
08ad6bd5 |
255 | =cut |
4b6d56d3 |
256 | |