doc/package/ebuild/eapi/2.docbook

<section id='package-ebuild-eapi-2_pre1'>
	<title>EAPI 2_pre1</title>
	<section id='package-ebuild-eapi-2-helpers'>
	<title>Helpers</title>
	<section id='package-ebuild-eapi-2-helpers-doman'>
	<title>doman</title>
	<para>
	Language codes in file names are now used for path translation.
	</para>
	<table><title>Man Page Path Translation</title>
	<tgroup cols='2' align='left' >
	<colspec colname='source'/>
	<colspec colname='destination'/>
	<thead>
	<row>
	<entry>Source</entry>
	<entry>Destination</entry>
	</row>
	</thead>
	<tbody>
	<row>
	<entry>foo.1</entry>
	<entry>/usr/share/man/man1/foo.1</entry>
	</row>
	<row>
	<entry>foo.lang.1</entry>
	<entry>/usr/share/man/lang/man1/foo.1</entry>
	</row>
	</tbody>
	</tgroup>
	</table>
	</section>
	</section>
	<section id='package-ebuild-eapi-2-use-deps'>
	<title>USE Dependencies</title>
	<section id='package-ebuild-eapi-2-use-deps-unconditional'>
	<title>Unconditional USE Dependencies</title>
	<table><title>Syntax Examples</title>
	<tgroup cols='2' align='left' >
	<colspec colname='example'/>
	<colspec colname='meaning'/>
	<thead>
	<row>
	<entry>Example</entry>
	<entry>Meaning</entry>
	</row>
	</thead>
	<tbody>
	<row>
	<entry>foo[bar]</entry>
	<entry>foo must have bar enabled</entry>
	</row>
	<row>
	<entry>foo[bar,baz]</entry>
	<entry>foo must have both bar and baz enabled</entry>
	</row>
	<row>
	<entry>foo[-bar,baz]</entry>
	<entry>foo must have bar disabled and baz enabled</entry>
	</row>
	</tbody>
	</tgroup>
	</table>
	</section>
	<section id='package-ebuild-eapi-2-use-deps-conditional'>
	<title>Conditional USE Dependencies</title>
	<table><title>Syntax Examples</title>
	<tgroup cols='2' align='left' >
	<colspec colname='compact'/>
	<colspec colname='expanded'/>
	<thead>
	<row>
	<entry>Compact Form</entry>
	<entry>Equivalent Expanded Form</entry>
	</row>
	</thead>
	<tbody>
	<row>
	<entry>foo[bar?]</entry>
	<entry>bar? ( foo[bar]  ) !bar? ( foo       )</entry>
	</row>
	<row>
	<entry>foo[!bar?]</entry>
	<entry>bar? ( foo       ) !bar? ( foo[-bar] )</entry>
	</row>
	<row>
	<entry>foo[bar=]</entry>
	<entry>bar? ( foo[bar]  ) !bar? ( foo[-bar] )</entry>
	</row>
	<row>
	<entry>foo[!bar=]</entry>
	<entry>bar? ( foo[-bar] ) !bar? ( foo[bar]  )</entry>
	</row>
	</tbody>
	</tgroup>
	</table>
	</section>
	</section>
</section>
<section id='package-ebuild-eapi-2_pre2'>
	<title>EAPI 2_pre2</title>
	<section id='package-ebuild-eapi-2-phases'>
		<title>Phases</title>
		<section id='package-ebuild-eapi-2-phases-src-configure'>
			<title>New src_configure Phase Function</title>
			<para>
			The configure portion of the src_compile function has been
			split into a separate function which is named src_configure. The
			src_configure function is called in between the src_unpack and
			src_compile functions.
			</para>
			<programlisting>
src_configure() {
	if [[ -x ${ECONF_SOURCE:-.}/configure ]] ; then
		econf
	fi
}

src_compile() {
	if [ -f Makefile ] || [ -f GNUmakefile ] || [ -f makefile ] ; then
		emake || die "emake failed"
	fi
}
			</programlisting>
			<table><title>Execution Order of Phase Functions</title>
				<tgroup cols='1' align='left' >
				<colspec colname='name'/>
				<thead>
				<row>
					<entry>Phase Function Name</entry>
				</row>
				</thead>
				<tbody>
				<row>
					<entry>pkg_setup</entry>
				</row>
				<row>
					<entry>src_unpack</entry>
				</row>
				<row>
					<entry>src_configure</entry>
				</row>
				<row>
					<entry>src_compile</entry>
				</row>
				<row>
					<entry>src_test</entry>
				</row>
				<row>
					<entry>src_install</entry>
				</row>
				<row>
					<entry>pkg_preinst</entry>
				</row>
				<row>
					<entry>pkg_postinst</entry>
				</row>
				<row>
					<entry>pkg_prerm</entry>
				</row>
				<row>
					<entry>pkg_postrm</entry>
				</row>
				</tbody>
				</tgroup>
			</table>
		</section>
		<section id='package-ebuild-eapi-2-phases-default-functions'>
			<title>Default Phase Functions</title>
			<para>
			The default pkg_nofetch and src_* phase functions are now
			accessible via a function having a name
			that begins with default_ and
			ends with the respective phase function name. For example,
			a call to a function with the name default_src_compile is
			equivalent to a call to the default src_compile
			implementation.
			</para>
			<table><title>Default Phase Functions</title>
				<tgroup cols='1' align='left' >
				<colspec colname='name'/>
				<thead>
				<row>
					<entry>Function Name</entry>
				</row>
				</thead>
				<tbody>
				<row>
					<entry>default_pkg_nofetch</entry>
				</row>
				<row>
					<entry>default_src_unpack</entry>
				</row>
				<row>
					<entry>default_src_configure</entry>
				</row>
				<row>
					<entry>default_src_compile</entry>
				</row>
				<row>
					<entry>default_src_test</entry>
				</row>
				</tbody>
				</tgroup>
			</table>
			<para>
			The default phase functions for a particular EAPI are also
			accessible as functions having names that start with 'eapi'
			followed by the EAPI value. For example, a call to a function
			named eapi0_src_compile is equivalent to a call to the
			default src_compile implementation that is provided with EAPI 0.
			</para>
			<table><title>Default EAPI Phase Functions</title>
				<tgroup cols='1' align='left' >
				<colspec colname='name'/>
				<thead>
				<row>
					<entry>Function Name</entry>
				</row>
				</thead>
				<tbody>
				<row>
					<entry>eapi0_pkg_nofetch</entry>
				</row>
				<row>
					<entry>eapi0_src_unpack</entry>
				</row>
				<row>
					<entry>eapi0_src_compile</entry>
				</row>
				<row>
					<entry>eapi0_src_test</entry>
				</row>
				<row>
					<entry>eapi1_pkg_nofetch</entry>
				</row>
				<row>
					<entry>eapi1_src_unpack</entry>
				</row>
				<row>
					<entry>eapi1_src_compile</entry>
				</row>
				<row>
					<entry>eapi1_src_test</entry>
				</row>
				<row>
					<entry>eapi2_pkg_nofetch</entry>
				</row>
				<row>
					<entry>eapi2_src_unpack</entry>
				</row>
				<row>
					<entry>eapi2_src_configure</entry>
				</row>
				<row>
					<entry>eapi2_src_compile</entry>
				</row>
				<row>
					<entry>eapi2_src_test</entry>
				</row>
				</tbody>
				</tgroup>
			</table>
		</section>
		<section id='package-ebuild-eapi-2-phases-default-function-alias'>
			<title>Default Phase Function Alias</title>
			<para>
			A function named "default" is redefined for each phase so that it
			will call the default_* function corresponding to the current phase.
			For example, a call to the function named "default" during the
			src_compile phase is equivalent to a call to the function named
			default_src_compile.
			</para>
		</section>
	</section>
</section>