1ExtUtils::Install(3) User Contributed Perl Documentation ExtUtils::Install(3)
2
6 ExtUtils::Install - install files from here to there
7
9 use ExtUtils::Install;
10 install({ 'blib/lib' => 'some/install/dir' } );
12 uninstall($packlist);
14 pm_to_blib({ 'lib/Foo/Bar.pm' => 'blib/lib/Foo/Bar.pm' });
16
18 2.20
19
21 Handles the installing and uninstalling of perl modules, scripts, man
22 pages, etc...
23 Both install() and uninstall() are specific to the way
25 ExtUtils::MakeMaker handles the installation and deinstallation of perl
26 modules. They are not designed as general purpose tools.
27 On some operating systems such as Win32 installation may not be
29 possible until after a reboot has occurred. This can have varying
30 consequences: removing an old DLL does not impact programs using the
31 new one, but if a new DLL cannot be installed properly until reboot
32 then anything depending on it must wait. The package variable
33 $ExtUtils::Install::MUST_REBOOT
35 is used to store this status.
37 If this variable is true then such an operation has occurred and
39 anything depending on this module cannot proceed until a reboot has
40 occurred.
41 If this value is defined but false then such an operation has occurred,
43 but should not impact later operations.
44
46 install
47 # deprecated forms
48 install(\%from_to);
49 install(\%from_to, $verbose, $dry_run, $uninstall_shadows,
50 $skip, $always_copy, \%result);
51 # recommended form as of 1.47
53 install([
54 from_to => \%from_to,
55 verbose => 1,
56 dry_run => 0,
57 uninstall_shadows => 1,
58 skip => undef,
59 always_copy => 1,
60 result => \%install_results,
61 ]);
62 Copies each directory tree of %from_to to its corresponding value
64 preserving timestamps and permissions.
65 There are two keys with a special meaning in the hash: "read" and
67 "write". These contain packlist files. After the copying is done,
68 install() will write the list of target files to $from_to{write}. If
69 $from_to{read} is given the contents of this file will be merged into
70 the written file. The read and the written file may be identical, but
71 on AFS it is quite likely that people are installing to a different
72 directory than the one where the files later appear.
73 If $verbose is true, will print out each file removed. Default is
75 false. This is "make install VERBINST=1". $verbose values going up to
76 5 show increasingly more diagnostics output.
77 If $dry_run is true it will only print what it was going to do without
79 actually doing it. Default is false.
80 If $uninstall_shadows is true any differing versions throughout @INC
82 will be uninstalled. This is "make install UNINST=1"
83 As of 1.37_02 install() supports the use of a list of patterns to
85 filter out files that shouldn't be installed. If $skip is omitted or
86 undefined then install will try to read the list from INSTALL.SKIP in
87 the CWD. This file is a list of regular expressions and is just like
88 the MANIFEST.SKIP file used by ExtUtils::Manifest.
89 A default site INSTALL.SKIP may be provided by setting then environment
91 variable EU_INSTALL_SITE_SKIPFILE, this will only be used when there
92 isn't a distribution specific INSTALL.SKIP. If the environment variable
93 EU_INSTALL_IGNORE_SKIP is true then no install file filtering will be
94 performed.
95 If $skip is undefined then the skip file will be autodetected and used
97 if it is found. If $skip is a reference to an array then it is assumed
98 the array contains the list of patterns, if $skip is a true non
99 reference it is assumed to be the filename holding the list of
100 patterns, any other value of $skip is taken to mean that no install
101 filtering should occur.
102 Changes As of Version 1.47
104 As of version 1.47 the following additions were made to the install
106 interface. Note that the new argument style and use of the %result
107 hash is recommended.
108 The $always_copy parameter which when true causes files to be updated
110 regardless as to whether they have changed, if it is defined but false
111 then copies are made only if the files have changed, if it is undefined
112 then the value of the environment variable EU_INSTALL_ALWAYS_COPY is
113 used as default.
114 The %result hash will be populated with the various keys/subhashes
116 reflecting the install. Currently these keys and their structure are:
117 install => { $target => $source },
119 install_fail => { $target => $source },
120 install_unchanged => { $target => $source },
121 install_filtered => { $source => $pattern },
123 uninstall => { $uninstalled => $source },
125 uninstall_fail => { $uninstalled => $source },
126 where $source is the filespec of the file being installed. $target is
128 where it is being installed to, and $uninstalled is any shadow file
129 that is in @INC or $ENV{PERL5LIB} or other standard locations, and
130 $pattern is the pattern that caused a source file to be skipped. In
131 future more keys will be added, such as to show created directories,
132 however this requires changes in other modules and must therefore wait.
133 These keys will be populated before any exceptions are thrown should
135 there be an error.
136 Note that all updates of the %result are additive, the hash will not be
138 cleared before use, thus allowing status results of many installs to be
139 easily aggregated.
140 NEW ARGUMENT STYLE
142 If there is only one argument and it is a reference to an array then
144 the array is assumed to contain a list of key-value pairs specifying
145 the options. In this case the option "from_to" is mandatory. This style
146 means that you do not have to supply a cryptic list of arguments and
147 can use a self documenting argument list that is easier to understand.
148 This is now the recommended interface to install().
150 RETURN
152 If all actions were successful install will return a hashref of the
154 results as described above for the $result parameter. If any action is
155 a failure then install will die, therefore it is recommended to pass in
156 the $result parameter instead of using the return value. If the result
157 parameter is provided then the returned hashref will be the passed in
158 hashref.
159 install_default
161 DISCOURAGED
162 install_default();
164 install_default($fullext);
165 Calls install() with arguments to copy a module from blib/ to the
167 default site installation location.
168 $fullext is the name of the module converted to a directory (ie.
170 Foo::Bar would be Foo/Bar). If $fullext is not specified, it will
171 attempt to read it from @ARGV.
172 This is primarily useful for install scripts.
174 NOTE This function is not really useful because of the hard-coded
176 install location with no way to control site vs core vs vendor
177 directories and the strange way in which the module name is given.
178 Consider its use discouraged.
179 uninstall
181 uninstall($packlist_file);
182 uninstall($packlist_file, $verbose, $dont_execute);
183 Removes the files listed in a $packlist_file.
185 If $verbose is true, will print out each file removed. Default is
187 false.
188 If $dont_execute is true it will only print what it was going to do
190 without actually doing it. Default is false.
191 pm_to_blib
193 pm_to_blib(\%from_to);
194 pm_to_blib(\%from_to, $autosplit_dir);
195 pm_to_blib(\%from_to, $autosplit_dir, $filter_cmd);
196 Copies each key of %from_to to its corresponding value efficiently. If
198 an $autosplit_dir is provided, all .pm files will be autosplit into it.
199 Any destination directories are created.
200 $filter_cmd is an optional shell command to run each .pm file through
202 prior to splitting and copying. Input is the contents of the module,
203 output the new module contents.
204 You can have an environment variable PERL_INSTALL_ROOT set which will
206 be prepended as a directory to each installed file (and directory).
207 By default verbose output is generated, setting the PERL_INSTALL_QUIET
209 environment variable will silence this output.
210
212 PERL_INSTALL_ROOT
213 Will be prepended to each install path.
214 EU_INSTALL_IGNORE_SKIP
216 Will prevent the automatic use of INSTALL.SKIP as the install skip
217 file.
218 EU_INSTALL_SITE_SKIPFILE
220 If there is no INSTALL.SKIP file in the make directory then this
221 value can be used to provide a default.
222 EU_INSTALL_ALWAYS_COPY
224 If this environment variable is true then normal install processes
225 will always overwrite older identical files during the install
226 process.
227 Note that the alias EU_ALWAYS_COPY will be supported if
229 EU_INSTALL_ALWAYS_COPY is not defined until at least the 1.50
230 release. Please ensure you use the correct EU_INSTALL_ALWAYS_COPY.
231
233 Original author lost in the mists of time. Probably the same as
234 Makemaker.
235 Production release currently maintained by demerphq "yves at cpan.org",
237 extensive changes by Michael G. Schwern.
238 Send bug reports via http://rt.cpan.org/. Please send your generated
240 Makefile along with your report.
241
243 This program is free software; you can redistribute it and/or modify it
244 under the same terms as Perl itself.
245 See <http://www.perl.com/perl/misc/Artistic.html>
247perl v5.34.0 2021-07-22 ExtUtils::Install(3)