86a415df8a
Asciidoc supports two syntaxes for section titles: two-line titles (title
plus underline consisting of a particular symbol), and one-line titles
(title prefixed with a specific number of = signs).
The two-line title underlines are:
Level 0 (top level): ======================
Level 1: ----------------------
Level 2: ~~~~~~~~~~~~~~~~~~~~~~
Level 3: ^^^^^^^^^^^^^^^^^^^^^^
Level 4 (bottom level): ++++++++++++++++++++++
and the one-line title prefixes:
= Document Title (level 0) =
== Section title (level 1) ==
=== Section title (level 2) ===
==== Section title (level 3) ====
===== Section title (level 4) =====
The buildroot manual is currenly using the two-line titles, but this has
multiple disadvantages:
- asciidoc also uses some of the underline symbols for other purposes (like
preformatted code, example blocks, ...), which makes it difficult to do
mass replacements, such as a planned follow-up patch that needs to move
all sections one level down.
- it is difficult to remember which level a given underline symbol (=-~^+)
corresponds to, while counting = signs is easy.
This patch changes all two-level titles to one-level titles in the manual.
The bulk of the change was done with the following Python script, except for
the level 1 titles (-----) as these underlines are also used for literal
code blocks.
This patch only changes the titles, no other changes. In
adding-packages-directory.txt, I did add missing newlines between some
titles and their content.
----------------------------------------------------------------------------
#!/usr/bin/env python
import sys
import mmap
import re
for input in sys.argv[1:]:
f = open(input, 'r+')
f.flush()
s = mmap.mmap(f.fileno(), 0)
# Level 0 (top level): ====================== =
# Level 1: ---------------------- ==
# Level 2: ~~~~~~~~~~~~~~~~~~~~~~ ===
# Level 3: ^^^^^^^^^^^^^^^^^^^^^^ ====
# Level 4 (bottom level): ++++++++++++++++++++++ =====
def replace_title(s, symbol, replacement):
pattern = re.compile(r'(.+\n)\%s{2,}\n' % symbol, re.MULTILINE)
return pattern.sub(r'%s \1' % replacement, s)
new = s
new = replace_title(new, '=', '=')
new = replace_title(new, '+', '=====')
new = replace_title(new, '^', '====')
new = replace_title(new, '~', '===')
#new = replace_title(new, '-', '==')
s.seek(0)
s.write(new)
s.resize(s.tell())
s.close()
f.close()
----------------------------------------------------------------------------
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
118 lines
4.6 KiB
Plaintext
118 lines
4.6 KiB
Plaintext
// -*- mode:doc; -*-
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// vim: set syntax=asciidoc:
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=== Infrastructure for Perl/CPAN packages
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[[perl-package-tutorial]]
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==== +perl-package+ tutorial
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First, let's see how to write a +.mk+ file for a Perl/CPAN package,
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with an example :
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------------------------
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01: ################################################################################
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02: #
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03: # perl-foo-bar
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04: #
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05: ################################################################################
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06:
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07: PERL_FOO_BAR_VERSION = 0.02
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08: PERL_FOO_BAR_SOURCE = Foo-Bar-$(PERL_FOO_BAR_VERSION).tar.gz
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09: PERL_FOO_BAR_SITE = $(BR2_CPAN_MIRROR)/authors/id/M/MO/MONGER/
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10: PERL_FOO_BAR_DEPENDENCIES = perl-strictures
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11: PERL_FOO_BAR_LICENSE = Artistic or GPLv1+
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12: PERL_FOO_BAR_LICENSE_FILES = LICENSE
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13:
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14: $(eval $(perl-package))
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------------------------
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On line 7, we declare the version of the package.
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On line 8 and 9, we declare the name of the tarball and the location
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of the tarball on a CPAN server. Buildroot will automatically download
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the tarball from this location.
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On line 10, we declare our dependencies, so that they are built
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before the build process of our package starts.
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On line 11 and 12, we give licensing details about the package (its
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license on line 11, and the file containing the license text on line
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12).
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Finally, on line 14, we invoke the +perl-package+ macro that
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generates all the Makefile rules that actually allow the package to be
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built.
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Most of these data can be retrieved from https://metacpan.org/.
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So, this file and the Config.in can be generated by running
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the script +supports/scripts/scancpan Foo-Bar+ in the Buildroot directory
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(or in the +BR2_EXTERNAL+ directory).
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This script creates a Config.in file and foo-bar.mk file for the
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requested package, and also recursively for all dependencies specified by
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CPAN. You should still manually edit the result. In particular, the
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following things should be checked.
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* The +PERL_FOO_BAR_LICENSE_FILES+ variable is not set, because metacpan
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doesn't have this information. Also, the name of the license file(s)
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varies between packages, and some don't even have a license file.
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* If the perl module links with a shared library that is provided by
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another (non-perl) package, this dependency is not added automatically.
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It has to be added manually to +PERL_FOO_BAR_DEPENDENCIES+.
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* The +package/Config.in+ file has to be updated manually to include the
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generated Config.in files. As a hint, the +scancpan+ script prints out
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the required +source "..."+ statements, sorted alphabetically.
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[[perl-package-reference]]
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==== +perl-package+ reference
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As a policy, packages that provide Perl/CPAN modules should all be
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named +perl-<something>+ in Buildroot.
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This infrastructure handles various Perl build systems :
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+ExtUtils-MakeMaker+, +Module-Build+ and +Module-Build-Tiny+.
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+Build.PL+ is always preferred when a package provides a +Makefile.PL+
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and a +Build.PL+.
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The main macro of the Perl/CPAN package infrastructure is
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+perl-package+. It is similar to the +generic-package+ macro. The ability to
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have target and host packages is also available, with the
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+host-perl-package+ macro.
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Just like the generic infrastructure, the Perl/CPAN infrastructure
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works by defining a number of variables before calling the
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+perl-package+ macro.
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First, all the package metadata information variables that exist in the
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generic infrastructure also exist in the Perl/CPAN infrastructure:
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+PERL_FOO_VERSION+, +PERL_FOO_SOURCE+,
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+PERL_FOO_PATCH+, +PERL_FOO_SITE+,
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+PERL_FOO_SUBDIR+, +PERL_FOO_DEPENDENCIES+,
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+PERL_FOO_INSTALL_TARGET+.
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Note that setting +PERL_FOO_INSTALL_STAGING+ to +YES+ has no effect
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unless a +PERL_FOO_INSTALL_STAGING_CMDS+ variable is defined. The perl
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infrastructure doesn't define these commands since Perl modules generally
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don't need to be installed to the +staging+ directory.
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A few additional variables, specific to the Perl/CPAN infrastructure,
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can also be defined. Many of them are only useful in very specific
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cases, typical packages will therefore only use a few of them.
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* +PERL_FOO_CONF_OPT+/+HOST_PERL_FOO_CONF_OPT+, to specify additional
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configure options to pass to the +perl Makefile.PL+ or +perl Build.PL+.
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By default, empty.
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* +PERL_FOO_BUILD_OPT+/+HOST_PERL_FOO_BUILD_OPT+, to specify additional
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options to pass to +make pure_all+ or +perl Build build+ in the build step.
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By default, empty.
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* +PERL_FOO_INSTALL_TARGET_OPT+, to specify additional options to
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pass to +make pure_install+ or +perl Build install+ in the install step.
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By default, empty.
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* +HOST_PERL_FOO_INSTALL_OPT+, to specify additional options to
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pass to +make pure_install+ or +perl Build install+ in the install step.
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By default, empty.
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