3 README.pod - README for the F<Porting/> directory in the Perl 5 core distribution.
7 =head2 F<acknowledgements.pl>
9 Generates the text which goes in the Acknowledgements section in
10 a perldelta. You pass in the previous version and it guesses the next
11 version, fetches information from the repository and outputs the
14 =head2 F<add-package.pl>
16 Program to prepare dual-life distributions for insertion into the Perl 5
17 F<lib/> and F<t/> directories. Now thought to be largely superseded.
19 =head2 F<add-pod-file>
21 Program to facilitate addition of new F<.pod> files to F<pod/>.
25 Do performance analysis on the code snippets in F<t/perf/benchmarks>.
27 =head2 F<bisect-example.sh>, F<bisect.pl> and F<bisect-runner.pl>
29 Use C<git bisect> to pinpoint changes.
31 =head2 F<bump-perl-version>
33 A utility to find, and optionally bump, references to the perl version
34 number in various files within the perl source.
36 =head2 F<checkansi.pl>
38 Check source code for ANSI-C violations.
40 =head2 F<checkcfguse.pl>
42 Check where the symbols defined in the various F<config.sh>-clones
43 are being used. VMS is probably not handled properly here.
45 =head2 F<checkcfgvar.pl>
47 Check that the various F<config.sh>-clones have (at least) all the same
48 symbols as the top-level F<config_h.SH> so that the (potentially) needed
49 symbols are not lagging after how F<Configure> thinks the world is laid out.
50 VMS is probably not handled properly here, due to their own rather elaborate
53 =head2 F<check-cpan-pollution>
55 Scans the commit logs for commits that are potentially, illegitimately
56 touching modules that are primarily maintained outside of the perl core. Also
57 checks for commits that span multiple distributions in F<cpan/> or F<dist/>.
58 Makes sure that updated CPAN distributions also update
59 F<Porting/Maintainers.pl>, but otherwise ignores changes to that file (and
62 =head2 F<checkpodencoding.pl>
64 Check if POD files contain non-ASCII without specifying
65 encoding. Run it as: C<perl Porting/checkpodencoding.pl>.
69 Checks that all the URLs in the Perl source are valid.
71 =head2 F<checkVERSION.pl>
73 Used by F<t/porting/cmp_version.t> to ensure changed modules have had their
76 =head2 F<cmpVERSION.pl>
78 Compare the current Perl source tree and a given tag for modules that have
79 identical version numbers but different contents.
83 This file is a sample F<config.h> file. If you are unable to successfully run
84 F<Configure>, copy this file to F<config.h> and edit it to suit your system.
88 Used when importing changes from F<metaconfig>. This script reorders
89 F<config_h.SH> after metaconfig.
93 This file is a sample F<config.sh> file. F<config.sh> is normally
94 produced by running the F<Configure> script. It holds all the definitions
95 figured out by F<Configure>. If you are unable to successfully run
96 F<Configure> on your system, copy this sample file to F<config.sh>
97 at the top of the perl source tree and edit it to suit your system.
98 Then propagate those values by running C<Configure -S>. This sample
99 file is normally updated each time F<Configure> is updated.
101 =head2 F<core-cpan-diff>
103 Compare CPAN modules with their equivalent in core.
104 Originally based on App::DualLivedDiff by Steffen Mueller.
106 =head2 F<corecpan.pl>
108 Reports, in a perl source tree, which dual-lived core modules have not the
109 same version than the corresponding module on CPAN.
111 =head2 F<corelist-diff>
113 Prints a table of differences between two Perl versions with respect to
114 modules included in the distribution.
116 =head2 F<corelist-perldelta.pl>
118 Generates a list of the module changes for the Perl you are currently
119 building. Also generates a diff between the corelist sections of two
122 =head2 F<corelist.pl>
124 Generates info for Module::CoreList from this perl tree.
126 =head2 F<core-team.json>
128 The canonical list of Perl Core Team members, used to build perlgov.pod,
129 produce election mailings, and all that sort of thing.
131 =head2 F<deparse-skips.txt>
133 List of test files to ignore/skip for deparse tests.
135 =head2 F<docs-team-charter.pod>
137 The charter of the Perl Documentation Team
139 =head2 F<epigraphs.pod>
141 List of Perl release epigraphs.
143 =head2 F<exclude_contrib.txt>
145 List of base 64 encoded SHA256 digests of C<< "name <email>" >> data
146 which should be ignored by F<updateAUTHORS.pl>.
148 =head2 F<exec-bit.txt>
150 This file contains a list of files that F<makerel> will ensure get an
153 =head2 F<exercise_makedef.pl>
155 Brute force testing for F<makedef.pl>.
157 =head2 F<expand-macro.pl>
159 Expand C macros using the C preprocessor.
163 This script finds reentrant variants of functions used in an executable and
166 =head2 F<git-deltatool>
168 This script, a rough draft, aids in generating a perldelta file
169 from a series of git commits.
171 =head2 F<git-find-p4-change>
173 This script, given a Perforce change number, outputs the equivalent git commit
176 =head2 F<git-make-p4-refs>
178 This script creates a tag for every p4raw-id.
180 =head2 F<GitUtils.pm>
182 This script contains the subroutine to generate a F<.patch file> for a
183 committish (the SHA1 checksum of a commit, a number made of 40 hexadecimal
184 digits which acts the internal unique identifier for this commit
185 (lilypond.org). Related file: F<make_dot_patch.pl>
189 This file is built by F<metaconfig>. This file contains a description of all
190 the shell variables whose value is determined by the Configure script.
191 It later gets incorporated into the pod for F<Config.pm>.
193 =head2 F<harness-timer-report.pl>
195 For analyzing the output of "env HARNESS_TIMER=1 make test", to find
196 outliers of test execution times.
198 =head2 F<how_to_write_a_perldelta.pod>
200 This file contains a specification as to how to write a perldelta pod.
201 Related file: F<perldelta_template.pod>
203 =head2 F<leakfinder.pl>
205 This script executes every line in every file in the build directory and its
206 subdirectories to determine if the number of SVs goes up and reports it as a
207 leak to STDOUT. WARNING! some harm could be done if a line contains something
208 similar to C<`rm *`>.
210 =head2 F<Maintainers>
212 This script shows information about the maintainers of core files/modules.
214 Related files: F<Maintainers.pl>, F<Maintainers.pm>
216 =head2 F<Maintainers.pl>
218 A package associating core files/modules with maintainers. Related files:
219 F<Maintainers>, F<Maintainers.pm>
221 =head2 F<Maintainers.pm>
223 A package to search and show information about which core files/modules are
224 associated with maintainers. Related files: F<Maintainers>, F<Maintainers.pl>
226 =head2 F<make_dot_patch.pl>
228 Generate a F<.patch> file to STDOUT for a commit ID specified on the
233 This script creates F<META.yml> and F<META.json> files.
237 This script builds a Perl release tarball.
239 =head2 F<make-rmg-checklist>
241 This script creates a release checklist as a simple HTML document.
243 =head2 F<make_snapshot.pl>
245 This script is a quick and dirty snapshot generator for the perl5.git.perl.org
246 web page to use to generate the snapshot files.
250 This script outputs a list of files in F<MANIFEST> which don't exist and a
251 list of files that exist and aren't in F<MANIFEST>.
253 =head2 F<manifest_lib.pl>
255 This library provides functions used in checking and sorting the F<MANIFEST>.
259 This script sorts the files in F<MANIFEST>.
263 This script regenerates F<Porting/config.sh> and F<Porting/config_H>.
265 =head2 F<new-perldelta.pl>
267 This script automates the process for creating perldelta.pl.
269 =head2 F<newtests-perldelta.pl>
271 This script outputs the added tests between the two versions of Perl.
273 =head2 F<perldelta_template.pod>
275 Template for F<perldelta>.
277 =head2 F<perlgov-team-update>
279 This produces a new team list for F<perlgov.pod>, but does not, at present,
280 insert that content into the file.
282 =head2 F<perlhist_calculate.pl>
284 Generates info for F<perlhist> from this perl tree.
288 When C<require>d into other programs in the Perl 5 core
289 distribution, provides functions useful during testing.
291 =head2 F<pod_rules.pl>
293 Generate the sections of files listed in C<%Targets> from F<pod/perl.pod>.
294 Mostly these are rules in Makefiles.
296 --verbose gives slightly more output
297 --build-all tries to build everything
298 --build-foo updates foo as follows
299 --showfiles shows the files to be changed
300 --test exit if perl.pod, MANIFEST are consistent, and regenerated
301 files are up to date, die otherwise.
305 Applies F<podtidy> to a file.
307 =head2 F<pumpkin.pod>
309 Pumpkin - Notes on handling the Perl Patch Pumpkin And Porting Perl.
310 Many of these are out of date or superseded by other documents in
315 This file. An exhaustive list of the contents of the F<Porting/>
316 directory along with a description of each file.
317 The test F<t/porting/readme.t> ensures that this lists every file
318 and that every file is listed.
320 =head2 F<README.y2038>
322 The y2038 implementation for perl. This is an implementation of POSIX time.h
323 which solves the year 2038 bug on systems where time_t is only 32 bits. It is
324 implemented in bog-standard ANSI C. The latest version can be found at
325 L<https://github.com/evalEmpire/y2038>.
327 =head2 F<release_announcement_template.txt>
329 Release announcement for minor releasements of the 5.19 development series.
331 =head2 F<release_managers_guide.pod>
333 Releasing a new version of perl 5.x. Note that things change at each release,
334 so there may be new things not covered here, or tools may need updating.
336 =head2 F<release_schedule.pod>
338 This schedule lists the projected or historical development and release
339 schedules for the next, current and previous stable versions of Perl. Dates
340 with all question marks will only be releases if deemed necessary by the
343 =head2 F<rt_list_patches>
345 Shell script to list patches in RT.
347 =head1 F<security_template.pod>
349 Template to guide writers of a perl 5 security vulnerability
352 =head2 F<sort_perldiag.pl>
354 This is a script for sorting the warning and error messages in
355 F<perldiag.pod>. POD formatting, printf-style escapes, non-letter characters,
356 and case are ignored, as explained in L<perldiag>.
358 =head2 F<sync-with-cpan>
360 Script to help out with syncing cpan distros.
362 =head2 F<test-dist-modules.pl>
364 Test modules in F<dist/> against the perl in C<PATH>. Used in the
365 github workflow to test against older perls.
367 =head2 F<timecheck2.c>
369 A little program to test the limits of your system's time functions. See
370 F<Porting/README.y2038> for details.
372 =head2 F<timecheck.c>
374 A helper tool for perl's 2038 support See F<Porting/README.y2038> for details.
378 This is a list of wishes for Perl. The most up-to-date version of this file is
379 at L<https://github.com/Perl/perl5/blob/blead/Porting/todo.pod>.
380 The tasks we think are smaller or easier are listed first. Anyone is welcome
381 to work on any of these, but it's a good idea to first contact
382 I<perl5-porters@perl.org> to avoid duplication of effort, and to learn from
383 any previous attempts.
385 =head2 F<updateAUTHORS.pl>
387 This script will automatically update AUTHORS and create .mailmap entries
388 based on the git commit log history. If F<t/porting/authors.t> complains
389 during testing you should run this. It will automatically fix most if not
390 all AUTHORS related test fails.
392 =head2 F<updateAUTHORS.pm>
394 The class used by F<updateAUTHORS.pl> to do its business. Package name
395 C<Porting::updateAUTHORS>.
397 =head2 F<valgrindpp.pl>
399 A post-processor for C<make test.valgrind>. F<valgrindpp.pl> is a
400 post-processor for F<.valgrind> files created during C<make test.valgrind>. It
401 collects all these files, extracts most of the information and produces a
402 significantly shorter summary of all detected memory access errors and memory
405 =head2 F<vote_admin_guide.pod>
407 Guide for Vote Administrators for running Steering Council elections.