A quick and dirty guide to version 2.0 of the package definition file package.xml
The package definition file package.xml
is,
as the name already implies, a well-formed XML file that contains
all information about a PEAR package. Version 2.0 contains several important
enhancements over version 1.0, including
-
Channel support
-
Binary PECL packages support (not fully implemented in PEAR 1.4.0)
-
More specific dependency resolution
For those of you with an existing package.xml version 1.0, you can create an approximate equivalent package using the
$ pear convert
command. Note that as of version 1.6.0a1, PEAR_PackageFileManager supports package.xml 2.0 with the PEAR_PackageFileManager2 class.
PECL developers: for more information on pecl-specific features, read here.
An example file with all elements
<?xml version="1.0"?> <package version="2.0" xmlns="http://pear.php.net/dtd/package-2.0" xmlns:tasks="http://pear.php.net/dtd/tasks-1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://pear.php.net/dtd/tasks-1.0 http://pear.php.net/dtd/tasks-1.0.xsd http://pear.php.net/dtd/package-2.0 http://pear.php.net/dtd/package-2.0.xsd"> <name>PEAR</name><channel>
pear.php.net</channel> <summary>Any one-line summary</summary> <description>any static long description. This text should not change very much between releases, use the "notes" tag for release notes </description><lead>
<name>Greg Beaver</name> <user>cellog</user> <email>cellog@php.net</email> <active>yes</active> </lead> <date>2005-02-26</date> <time>20:30:13</time> <-- note: <time> is optional --><version>
<release>1.4.0a2</release> <api>1.4.0</api> </version><stability>
<release>alpha</release> <api>alpha</api> </stability><license uri="
http://www.php.net/license/">PHP License</license> <notes> Put release notes here. They can be multi-line </notes><contents> <dir name="/">
<dir name="PEAR"> <dir name="ChannelFile"><file name="Parser.php" role="php" />
</dir> <!-- /PEAR/ChannelFile --> <file name="Dependency2.php" role="php"> <tasks:replace from="@PEAR-VER@" to="version" type="package-info"/> </file> </dir> <!-- /PEAR --> <dir name="scripts" baseinstalldir="/"> <file name="pear.bat" role="script"><tasks:replace from="@bin_dir@" to="bin_dir" type="pear-config" />
<tasks:replace from="@php_bin@" to="php_bin" type="pear-config" /> <tasks:replace from="@include_path@" to="php_dir" type="pear-config" /><tasks:windowseol/>
</file> <file name="pecl.bat" role="script"> <tasks:replace from="@bin_dir@" to="bin_dir" type="pear-config" /> <tasks:replace from="@php_bin@" to="php_bin" type="pear-config" /> <tasks:replace from="@include_path@" to="php_dir" type="pear-config" /> <tasks:windowseol/> </file> <file name="pear.sh" role="script"> <tasks:replace from="@php_bin@" to="php_bin" type="pear-config" /> <tasks:replace from="@php_dir@" to="php_dir" type="pear-config" /> <tasks:replace from="@pear_version@" to="version" type="package-info" /> <tasks:replace from="@include_path@" to="php_dir" type="pear-config" /><tasks:unixeol/>
</file> <file name="pecl.sh" role="script"> <tasks:replace from="@php_bin@" to="php_bin" type="pear-config" /> <tasks:replace from="@php_dir@" to="php_dir" type="pear-config" /> <tasks:replace from="@pear_version@" to="version" type="package-info" /> <tasks:replace from="@include_path@" to="php_dir" type="pear-config" /> <tasks:unixeol/> </file> <file name="pearcmd.php" role="php"> <tasks:replace from="@php_bin@" to="php_bin" type="pear-config" /> <tasks:replace from="@php_dir@" to="php_dir" type="pear-config" /> <tasks:replace from="@pear_version@" to="version" type="package-info" /> <tasks:replace from="@include_path@" to="php_dir" type="pear-config" /> </file> <file name="peclcmd.php" role="php"> <tasks:replace from="@php_bin@" to="php_bin" type="pear-config" /> <tasks:replace from="@php_dir@" to="php_dir" type="pear-config" /> <tasks:replace from="@pear_version@" to="version" type="package-info" /> <tasks:replace from="@include_path@" to="php_dir" type="pear-config" /> <tasks:footask/> </file> </dir> <!-- /scripts --> <file name="package.dtd" role="data" /> <file name="postinstall.php" role="php"><tasks:postinstallscript/>
</file> <file name="template.spec" role="foo" /> </dir> <!-- / --> </contents><compatible>
<name>FooPackage</name> <channel>pear.php.net</channel> <min>1.3.0</min> <max>1.5.0</max> </compatible><dependencies>
<required><php>
<min>4.2</min> <max>6.0.0</max> </php><pearinstaller>
<min>1.4.0dev13</min> </pearinstaller><package>
<name>Archive_Tar</name> <channel>pear.php.net</channel> <min>1.1</min> <recommended>1.2</recommended> </package><package>
<name>Foo</name> <uri>http://www.example.com/Foo-1.2.0.tgz</uri> </package><extension>
<name>xml</name> </extension><os>
<name>windows</name> <conflicts/> </os><arch>
<pattern>*-i?86-*-*</pattern> </arch> </required><optional>
<package> <name>PEAR_Frontend_Web</name> <channel>pear.php.net</channel> <min>0.5.0</min> </package> <package> <name>PEAR_Frontend_Gtk</name> <channel>pear.php.net</channel> <min>0.4.0</min> </package> </optional> <group name="remoteinstall" hint="adds the ability to install packages to a remote ftp server"> <package> <name>Net_FTP</name> <channel>pear.php.net</channel> <min>1.3.0RC1</min> <recommended>1.3.0</recommended> </package> </group> <group name="webinstaller" hint="PEAR's web-based installer"> <package> <name>PEAR_Frontend_Web</name> <channel>pear.php.net</channel> <min>0.5.0</min> </package> </group> <group name="gtkinstaller" hint="PEAR's PHP-GTK-based installer"> <package> <name>PEAR_Frontend_Gtk</name> <channel>pear.php.net</channel> <min>0.4.0</min> </package> </group> </dependencies><usesrole>
<role>foo</role> <package>Foo</package> <channel>pear.example.com</channel> </usesrole><usestask>
<task>footask</task> <package>Footask</package> <channel>pear.example.com</channel> </usestask><phprelease>
<installconditions> <os> <name>windows</name> </os> </installconditions> <filelist> <install as="pear.bat" name="scripts/pear.bat" /> <install as="pecl.bat" name="scripts/pecl.bat" /> <install as="pearcmd.php" name="scripts/pearcmd.php" /> <install as="peclcmd.php" name="scripts/peclcmd.php" /> <ignore name="scripts/pear.sh" /> <ignore name="scripts/pecl.sh" /> </filelist> </phprelease> <phprelease> <filelist> <install as="pear" name="scripts/pear.sh" /> <install as="pecl" name="scripts/pecl.sh" /> <install as="pearcmd.php" name="scripts/pearcmd.php" /> <install as="peclcmd.php" name="scripts/peclcmd.php" /> <ignore name="scripts/pear.bat" /> <ignore name="scripts/pecl.bat" /> </filelist> </phprelease> <changelog> <release> <version> <release>1.3.5</release> <api>1.3.0</api> </version> <stability> <release>stable</release> <api>stable</api> </stability> <date>2005-02-26</date> <license uri="http://www.php.net/license/3_0.txt">PHP License</license> <notes> * fix Bug #3505: pecl can't install PDO * enhance pear run-tests dramatically * fix Bug #3506: pear install should export the pear version into the environment </notes> </release> <release> <version> <release>1.4.0a1</release> <api>1.4.0</api> </version> <stability> <release>alpha</release> <api>alpha</api> </stability> <date>2005-02-26</date> <license uri="http://www.php.net/license/3_0.txt">PHP License</license> <notes> This is a major milestone release for PEAR. In addition to several killer features, every single element of PEAR has a regression test, and so stability is much higher than any previous PEAR release, even with the alpha label. New features in a nutshell: * full support for channels * pre-download dependency validation * new package.xml 2.0 format allows tremendous flexibility while maintaining BC * support for optional dependency groups and limited support for sub-packaging * robust dependency support * full dependency validation on uninstall * support for binary PECL packages * remote install for hosts with only ftp access - no more problems with restricted host installation * full support for mirroring * support for bundling several packages into a single tarball * support for static dependencies on a url-based package Specific changes from 1.3.5: * Implement request #1789: SSL support for xml-rpc and download * Everything above here that you just read </notes> </release> </changelog> </package>