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This page describes items that need to be changed in the [http://fedoraproject.org/wiki/Packaging/PHP PHP Guidelines]  or other items that need to be reviewed or ratified by the [http://fedoraproject.org/wiki/Packaging/Committee Fedora Packaging Comittee]  and [http://fedoraproject.org/wiki/Development/SteeringCommittee FESCo] .
This page describes items that need to be changed in the [http://fedoraproject.org/wiki/Packaging/PHP PHP Guidelines]  or other items that need to be reviewed or ratified by the [http://fedoraproject.org/wiki/Packaging/Committee Fedora Packaging Comittee]  and [http://fedoraproject.org/wiki/Development/SteeringCommittee FESCo] .


Section 2 is the current Guidelines + proposed changed to allow simple diff.


 
= Actual Guidelines =
= Guidelines for packaging PHP addon modules =
 
 
== Different kinds of packages ==
 
There are basically 4 different kinds of php modules, which are packaged for Fedora:
 
* [http://pecl.php.net PECL]  (PHP Extention Community Library), which are PHP modules usually written in C, which are dynamically loaded by the PHP interpreter on startup.
* [http://pear.php.net PEAR]  (PHP Extension and Application Repository), which are reusable components written in PHP, usually classes, which can be used in your own PHP applications and scripts by using e.g. the include() directive.
* CHANNEL : a package which register a channel. A channel is a repository which provides php extensions
* Other package providing php extension not handled by pear/pecl mechanisms
 
While upstream used the same package and distribution format for PECL and PEAR, creating RPMs has to take some differences into account.
 
3 channels are defined on installation of php-pear
* <code>pear.php.net</code> (alias pear) : the default channel for PHP Extension and Application Repository
* <code>pecl.php.net</code> (alias pecl) : the default channel for PHP Extension Community Library
* <code>__uri</code> : Pseudo-channel for static packages
 
Other channels must be configured at RPM build time and at at RPM installation time.
 
'''FPC notes''' : we already have 4 extras channels in repository (phing, phpdb, symfony and phpunit). A new one (ezc) is on the road. This Guidelines update proposal "try" to avoid change for already approved packages.
 
{{Anchor|NamingScheme}}
 
== Naming scheme ==
 
* PECL packages from standard pecl channel should be named php-pecl-PECLPackageName-%{version}-%{release}.%{arch}.rpm.
* PEAR packages from standard pear channel should be named php-pear-PEARPackageName-%{version}-%{release}.noarch.rpm.
* CHANNEL packages should be named php-channel-ChannelAlias-%{version}-%{release}.noarch.rpm
* Packages from another channel  should be named php-ChannelAlias-PackageName-%{version}-%{release}.noarch.rpm.
* Other packages should be named ''php-PackageName-%{version}-%{release}.%{arch}.rpm''; %{arch} can be "noarch" where appropriate.
 
Please make sure that the PEAR package is correctly being built for noarch.
 
The PECLPackageName and the PEARPackageName should be consistent with the upstream naming scheme.
The Crack PHP Extension would thus be named ''php-pecl-crack'' with the resulting packages being ''php-pecl-crack-0.4-1.i386.rpm'' and ''php-pecl-crack-0.4-1.src.rpm''.
 
Note that web applications that happen to be written in PHP do not belong under the php-* namespace.
 
'''FPC notes''' : PECL/PEAR package from standard channel also follow naming scheme for packages from another channel :)
 
Packages which doesn't follow this Guidelines update:
* php-pear-creole => php-phpdb-creole
* php-pear-propel_runtime => php-phpdb-propel-runtime
* php-pear-propel_generator => php-phpdb-propel-generator
* php-pear-phing => php-phing-phing
* php-pear-PHPUnit => php-phpunit-PHPUnit
* php-pear-pake => php-symfony-pake
 
We could probably accept an exception for this already accepted packages


== File Placement ==
== File Placement ==
Line 66: Line 14:
Non-PEAR PHP extensions should put their Class files in /usr/share/php.
Non-PEAR PHP extensions should put their Class files in /usr/share/php.


== Requires and Provides ==


=== PEAR Packages from the standard channel/repository ===
= Change proposal =


A PEAR package '''MUST''' have:
== File Placement ==
 
<pre>
BuildRequires: php-pear(PEAR)
Requires: php-pear(PEAR)
Requires(post): %{__pear}
Requires(postun): %{__pear}
Provides:    php-pear(foo) = %{version}
</pre>
 
=== Packages for CHANNEL (repository) configuration  ===


A CHANNEL package ''''MUST''' have :
Non-PEAR PHP extensions should put their '''Shared''' Class files in '''a subfolder of''' /usr/share/php.
<pre>
Requires: php-pear(PEAR)
Requires(post): %{__pear}
Requires(postun): %{__pear}
Provides: php-channel(channelname)
</pre>


=== PEAR Packages from a non standard channel/repository ===


A PEAR package '''MUST''' have:
= Actual Guidelines =
 
<pre>
BuildRequires: php-channel(channelname)
BuildRequires: php-pear(PEAR)
Requires: php-pear(PEAR)
Requires(post): %{__pear}
Requires(postun): %{__pear}
Requires: php-channel(channelname)
Provides:    php-pear(channelname/foo) = %{version}
</pre>


== Requires and Provides ==
=== PECL Packages ===
=== PECL Packages ===


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</pre>
</pre>


=== Other Packages ===


PHP addons which are neither PEAR nor PECL should require what makes sense (either a base PHP version or a php-api, php(zend-abi) as necessary).
= Change proposal =


== Macros and scriptlets ==
== Requires and Provides ==
=== C Extension (PECL and other) ===


=== Packages for CHANNEL (repository) configuration  ===
Each C extension instantiate a zend_module_entry with the ZEND_MODULE_API_NO constant. PHP check that the value for the extension is egal to the value for PHP (standard ABI check).


And here are some recommended scriptlets for properly registering  and unregistering the channel:
A C extension '''MUST''' have:


<pre>
<pre>
%post
BuildRequires: php-devel
if [ $1 -eq  1 ] ; then
%if %{?php_zend_api}0
  %{__pear} channel-add %{pear_xmldir}/%{name}.xml > /dev/null || :
Requires:     php(zend-abi) = %{php_zend_api}
else
Requires:    php(api) = %{php_core_api}
  %{__pear} channel-update %{pear_xmldir}/%{name}.xml > /dev/null ||:
%else
fi
Requires:    php-api = %{php_apiver}
 
%endif
%postun
if [ $1 -eq 0 ] ; then
  %{__pear} channel-delete %{channelname} > /dev/null || :
fi
</pre>
</pre>


'''FPC notes''' : I recommend to use %{name} for XML file rather than channel or extension name to avoid possible conflicts
Condition around Requires could be removed if the extension requires php >= 5.2.0, where php_zend_api always defined. (so it is mandatory for EPEL package)


=== PECL Packages ===


=== PEAR Modules ===
PECL extension '''MUST''' have ABI check (see previous)


The php-pear package in Fedora Core 5 and above (version 1:1.4.9-1.2) provides several useful macros:
A PECL package '''MUST''' also have:
* %{pear_phpdir}
* %{pear_docdir}
* %{pear_testdir}
* %{pear_datadir}
* %{pear_xmldir}


These defintions for the .spec should be of interest:
<pre>
<pre>
BuildRequires:   php-pear >= 1:1.4.9-1.2
BuildRequires: php-pear
Provides:        php-pear(PackageName) = %{version}
Requires(post): %{__pecl}
Requires:        php-common >= 4.3, php-pear(PEAR)
Requires(postun): %{__pecl}
Requires(post):   %{_bindir}/pear
Requires(postun): %{_bindir}/pear
</pre>


'''FPC notes''' : i change php to php-common (to avoid httpd dependency)
Provides:     php-pecl(foo) = %{version}
 
And here are some recommended scriptlets for properly registering the module:
<pre>
%post
%{_bindir}/pear install --nodeps --soft --force --register-only %{pear_xmldir}/%{name}.xml >/dev/null ||:
</pre>
</pre>


'''FPC notes''' : I also recommend to use %{name} for XML file rather than extension name to avoid possible conflicts
(we can only use this for non standard channel ank keep using extension name for standard one and for existing package)
And here are some recommended scriptlets for properly unregistering the module, from the standard channel:
<pre>
%postun
if [ "$1" -eq "0" ] ; then
%{_bindir}/pear uninstall --nodeps --ignore-errors --register-only Foo_Bar >/dev/null ||:
fi
</pre>
From a non standard channel (pear command requires the channel):
<pre>
%postun
if [ "$1" -eq "0" ] ; then
%{_bindir}/pear uninstall --nodeps --ignore-errors --register-only Foo_channel/Foo_Bar >/dev/null ||:
fi
</pre>


= Actual Guidelines =


== Macros and scriptlets ==
=== PECL Modules ===
=== PECL Modules ===


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</pre>
</pre>


=== Other Modules ===
= Change proposal (just add a comment) =
 
If your module includes compiled code, you may need to define some macros to extract some information from PHP.  It is recommended that you user the following:
<pre>
%global php_apiver  %((echo 0; php -i 2>/dev/null | sed -n 's/^PHP API => //p') | tail -1)
%global php_extdir  %(php-config --extension-dir 2>/dev/null || echo "undefined")
%global php_version %(php-config --version 2>/dev/null || echo 0)
</pre>
 
== Additional Hints for Packagers ==
 
=== PEAR & PECL Packages ===
 
The source archive contains a package.xml outside any directory, so you have to use use
<pre>
%setup -q -c
</pre>
in your %prep section to avoid writing files to the build root.
 
=== PEAR Packages ===
 
To create your initial specfile, you can use the default template provided by the rpmdevtools package:
 
<pre>
fedora-newrpmspec -t php-pear php-pear-Foo
</pre>
 
Or you can generate one; make sure you have the php-pear-PEAR-Command-Packaging package installed:
 
<pre>
pear make-rpm-spec Foo.tgz
</pre>
 
= Packages with Optional Requires =
 
TODO: Some PEAR packages such as [http://pear.php.net/package/Auth Auth]  have many other PEAR packages that are optional Requires.  We need to discuss how to handle splitting up large packages such as this.


== Other Items ==
Condition around the post/postun scriplet can be removed if the extension requires php >= 5.2.0, where pecl_install always defined. (so it is mandatory for EPEL package)


No additional items required.


[[Category:Packaging guidelines drafts]]
[[Category:Packaging guidelines drafts]]

Revision as of 16:27, 14 July 2009

[[TableOfContents(3)]

Proposed Changes to PHP Guidelines

Synopsis

This page describes items that need to be changed in the PHP Guidelines or other items that need to be reviewed or ratified by the Fedora Packaging Comittee and FESCo .


Actual Guidelines

File Placement

Non-PEAR PHP extensions should put their Class files in /usr/share/php.


Change proposal

File Placement

Non-PEAR PHP extensions should put their Shared Class files in a subfolder of /usr/share/php.


Actual Guidelines

Requires and Provides

PECL Packages

A PECL package MUST have:

BuildRequires: php-devel, php-pear
Requires(post): %{__pecl}
Requires(postun): %{__pecl}

%if %{?php_zend_api}0
Requires:     php(zend-abi) = %{php_zend_api}
Requires:     php(api) = %{php_core_api}
%else
Requires:     php-api = %{php_apiver}
%endif

Provides:     php-pecl(foo) = %{version}


Change proposal

Requires and Provides

C Extension (PECL and other)

Each C extension instantiate a zend_module_entry with the ZEND_MODULE_API_NO constant. PHP check that the value for the extension is egal to the value for PHP (standard ABI check).

A C extension MUST have:

BuildRequires: php-devel
%if %{?php_zend_api}0
Requires:     php(zend-abi) = %{php_zend_api}
Requires:     php(api) = %{php_core_api}
%else
Requires:     php-api = %{php_apiver}
%endif

Condition around Requires could be removed if the extension requires php >= 5.2.0, where php_zend_api always defined. (so it is mandatory for EPEL package)

PECL Packages

PECL extension MUST have ABI check (see previous)

A PECL package MUST also have:

BuildRequires: php-pear
Requires(post): %{__pecl}
Requires(postun): %{__pecl}

Provides:     php-pecl(foo) = %{version}


Actual Guidelines

Macros and scriptlets

PECL Modules

The php-pear package in Fedora Core 5 and above (version 1:1.4.9-1.2) provides several useful macros:

  • %{pecl_phpdir}
  • %{pecl_docdir}
  • %{pecl_testdir}
  • %{pecl_datadir}
  • %{pecl_xmldir}

You may need to define a few additional macros to extract some information from PHP. It is recommended that you use the following:

%global php_apiver  %((echo 0; php -i 2>/dev/null | sed -n 's/^PHP API => //p') | tail -1)
%{!?__pecl:     %{expand: %%global __pecl     %{_bindir}/pecl}}
%{!?php_extdir: %{expand: %%global php_extdir %(php-config --extension-dir)}}

And here are some recommended scriptlets for properly registering and unregistering the module:

%if 0%{?pecl_install:1}
%post
%{pecl_install} %{pecl_xmldir}/%{name}.xml >/dev/null || :
%endif


%if 0%{?pecl_uninstall:1}
%postun
if [ $1 -eq 0 ]  ; then
%{pecl_uninstall} %{pecl_name} >/dev/null || :
fi
%endif

Change proposal (just add a comment)

Condition around the post/postun scriplet can be removed if the extension requires php >= 5.2.0, where pecl_install always defined. (so it is mandatory for EPEL package)