* Moved some stuff to the Nixpkgs manual.

* Updated the release notes.
This commit is contained in:
Eelco Dolstra 2008-08-05 11:03:05 +00:00
parent 98b07466fb
commit 72f3ea7358
2 changed files with 22 additions and 162 deletions

View file

@ -14,6 +14,9 @@
<listitem><para>TODO: Berkeley DB no longer needed.</para></listitem>
<listitem><para>New substituter to copy from remotely mounted Nix
stores (TODO: document).</para></listitem>
<listitem><para><command>nix-store --dump-db / --load-db</command>.</para></listitem>
<listitem><para>New primops:
@ -25,6 +28,25 @@
<varname>builtins.genericClosure</varname>.
</para></listitem>
<listitem><para>GC options: <option>--max-freed</option>,
<option>--max-links</option>.</para></listitem>
<listitem><para>TODO: Optimistic profile locking.</para></listitem>
<listitem><para>The option <option>--dry-run</option> is now
supported by <command>nix-store -r</command> and
<command>nix-build</command>.</para></listitem>
<listitem><para>The information previously shown by
<option>--dry-run</option> (i.e., which derivations will be built
and which paths will be substituted) is now always shown by
<command>nix-env</command>, <command>nix-store -r</command> and
<command>nix-build</command>. The total download size of
substitutable paths is now also shown.</para></listitem>
<listitem><para><command>nix-prefetch-url</command> now supports
<literal>mirror://</literal> URLs.</para></listitem>
</itemizedlist>
</section>

View file

@ -1644,59 +1644,6 @@ impureEnvVars = ["http_proxy" "https_proxy" <replaceable>...</replaceable>];
<section xml:id='sec-standard-environment'><title>The standard environment</title>
<para>The standard build environment in the Nix Packages collection
provides a basic environment for building Unix packages. It consists
of the following packages:
<itemizedlist>
<listitem><para>The GNU C Compiler, configured with C and C++
support. On Linux, the compiler has been patched to provide greater
<quote>purity</quote> assurance. For instance, the compiler doesn't
search in locations such as <filename>/usr/include</filename>. In
fact, attempts to add such directories through the
<option>-I</option> flag are filtered out. Likewise, the linker
(from GNU binutils) doesn't search in standard locations such as
<filename>/usr/lib</filename>. Programs built on Linux are linked
against a GNU C Library that likewise doesn't search in the default
system locations.</para></listitem>
<listitem><para>GNU coreutils (contains a few dozen standard Unix
commands).</para></listitem>
<listitem><para>GNU findutils (contains
<command>find</command>).</para></listitem>
<listitem><para>GNU diffutils (contains <command>diff</command>,
<command>cmp</command>).</para></listitem>
<listitem><para>GNU <command>sed</command>.</para></listitem>
<listitem><para>GNU <command>grep</command>.</para></listitem>
<listitem><para>GNU <command>awk</command>.</para></listitem>
<listitem><para>GNU <command>tar</command>.</para></listitem>
<listitem><para><command>gzip</command> and
<command>bzip2</command>.</para></listitem>
<listitem><para>GNU Make. It has been patched to provide
<quote>nested</quote> output that can be fed into the
<command>nix-log2xml</command> command and
<command>log2html</command> stylesheet to create a structured,
readable output of the build steps performed by
Make.</para></listitem>
<listitem><para>Bash. This is the shell used for all builders in
the Nix Packages collection. Not using <command>/bin/sh</command>
removes a large source of portability problems.</para></listitem>
<listitem><para>Patch.</para></listitem>
</itemizedlist>
</para>
<para>The standard environment is used by passing it as an input
called <envar>stdenv</envar> to the derivation, and then doing
@ -1765,115 +1712,6 @@ myPostInstall() {
</para>
<para>The generic builder has a number of <emphasis>phases</emphasis>,
each of which can be override in its entirety by setting the indicated
variable. The phases are:
<itemizedlist>
<listitem>
<para><function>unpackPhase</function> unpacks the source files
listed in the <envar>src</envar> environment variable to the
current directory. It supports <filename>tar</filename> files,
optionally compressed with <command>gzip</command> or
<command>bzip2</command>; Zip files (but note that the
<command>unzip</command> command is not a part of the standard
environment; you should add it as a build input yourself); and
unpacked source trees (i.e., directories; they are copied
verbatim). You can add support for other file types by setting
the <varname>findUnpacker</varname> hook. This hook should set
the variable <varname>unpackCmd</varname> to contain the command
to be executed to unpack the file.</para>
<para>After unpacking all source files,
<function>unpackPhase</function> changes the current directory to
the directory created by unpacking the sources. If there are
multiple source directories, you should set
<varname>sourceRoot</varname> to the name of the intended
directory.</para>
<para>It also calls the hook <varname>postUnpack</varname> after
unpacking.</para>
</listitem>
<listitem><para><function>patchPhase</function> calls the
<command>patch</command> command with the <option>-p1</option>
option for each patch file listed in the <envar>patches</envar>
variable.</para></listitem>
<listitem>
<para><function>configurePhase</function> runs the script called
<filename>configure</filename> in the current directory with a
<option>--prefix</option> set to the output path. You can add
additional flags through the <varname>configureFlags</varname>
variable. If <filename>configure</filename> does not exist,
nothing happens.</para>
<para>Before and after running <filename>configure</filename>, the
hooks <varname>preConfigure</varname> and
<varname>postConfigure</varname> are called, respectively.</para>
</listitem>
<listitem>
<para><function>buildPhase</function> calls
<command>make</command>. You can set flags for
<command>make</command> through the <varname>makeFlags</varname>
variable.</para>
<para>Before and after running <command>make</command>, the hooks
<varname>preBuild</varname> and <varname>postBuild</varname> are
called, respectively.</para>
</listitem>
<listitem><para><function>checkPhase</function> calls <command>make
check</command>, but only if the <varname>doCheck</varname> variable
is set to <literal>1</literal>. Additional flags can be set through
the <varname>checkFlags</varname> variable.</para></listitem>
<listitem>
<para><function>installPhase</function> calls <command>make
install</command>. Additional flags can be set through the
<varname>installFlags</varname> variable. It also strips any
static libraries in the output path of debug information unless
<varname>dontStrip</varname> is set to
<literal>1</literal>.</para>
<para>Before and after running <command>make install</command>,
the hooks <varname>preInstall</varname> and
<varname>postInstall</varname> are called, respectively.</para>
</listitem>
<listitem>
<para><function>distPhase</function> calls <command>make
dist</command>, but only if the <varname>doDist</varname> variable
is set to <literal>1</literal>. Additional flags can be set
through the <varname>distFlags</varname> variable. The resulting
tarball is copied to the <filename>/tarballs</filename>
subdirectory of the output path.</para>
<para>Before and after running <command>make dist</command>, the
hooks <varname>preDist</varname> and <varname>postDist</varname>
are called, respectively.</para>
</listitem>
</itemizedlist>
</para>
<para>You can change the order in which phases are executed, or add
new phases, by setting the <varname>phases</varname> variable. The
default is <literal>patchPhase configurePhase buildPhase checkPhase
installPhase distPhase</literal>.</para>
</section>