source: general/prog/ruby.xml@ 078d23fa

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../../general.ent">
  %general-entities;

  <!ENTITY ruby-download-http "https://cache.ruby-lang.org/pub/ruby/&ruby-minor-version;/ruby-&ruby-version;.tar.xz">
  <!ENTITY ruby-download-ftp  " ">
  <!ENTITY ruby-md5sum        "377853f31d10bfe37c58b8537fc3e05d">
  <!ENTITY ruby-size          "14 MB">
  <!ENTITY ruby-buildsize     "694 MB (add 1.0 GB for C API docs)">
  <!ENTITY ruby-time          "1.2 SBU (using parallelism=4; add 4.6 SBU for tests; add 0.6 SBU for C API docs)">
]>

<sect1 id="ruby" xreflabel="Ruby-&ruby-version;">
  <?dbhtml filename="ruby.html"?>


  <title>Ruby-&ruby-version;</title>

  <indexterm zone="ruby">
    <primary sortas="a-Ruby">Ruby</primary>
  </indexterm>

  <sect2 role="package">
    <title>Introduction to Ruby</title>

    <para>
      The <application>Ruby</application> package contains the
      <application>Ruby</application> development environment. This
      is useful for object-oriented scripting.
    </para>

    &lfs113_checked;

    <bridgehead renderas="sect3">Package Information</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>
          Download (HTTP): <ulink url="&ruby-download-http;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download (FTP): <ulink url="&ruby-download-ftp;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download MD5 sum: &ruby-md5sum;
        </para>
      </listitem>
      <listitem>
        <para>
          Download size: &ruby-size;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated disk space required: &ruby-buildsize;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated build time: &ruby-time;
        </para>
      </listitem>
    </itemizedlist>

    <bridgehead renderas="sect3">Ruby Dependencies</bridgehead>

    <bridgehead renderas="sect4">Required</bridgehead>
    <para role="required">
      <xref linkend="libyaml"/>
    </para>

    <bridgehead renderas="sect4">Optional</bridgehead>
    <para role="optional">
      <xref linkend="db"/>,
      <xref linkend="doxygen"/>,
      <xref linkend="graphviz"/>,
      <xref linkend="rust"/>,
      <xref linkend="tk"/>,
      <xref linkend="valgrind"/>, and
      <ulink url="http://dtrace.org/blogs/about/">DTrace</ulink>
    </para>

    <para condition="html" role="usernotes">User Notes:
      <ulink url="&blfs-wiki;/ruby"/>
    </para>
  </sect2>

  <sect2 role="installation">
    <title>Installation of Ruby</title>

    <para>
      If you wish to run the tests after installing this package, fix a problem
      that results in a crash during the test suite, due to an undefined
      variable:
    </para>

<screen><userinput>sed -i '283d' tool/lib/leakchecker.rb</userinput></screen>

    <para>
      Install <application>Ruby</application> by running the following
      command:
    </para>

<screen><userinput>./configure --prefix=/usr      \
            --enable-shared    \
            --without-valgrind \
            --without-baseruby \
            --docdir=/usr/share/doc/ruby-&ruby-version; &amp;&amp;
make</userinput></screen>

    <para>
      Optionally, build the CAPI documents by running the following
      commands:
    </para>

<screen><userinput>make capi</userinput></screen>

    <para>
      The tests require that the new version of Ruby is already installed to
      run correctly. If you want to run the tests, execute them after installing
      the package. <!-- Ticket #17887 -->
    </para>

    <para>
      Now, as the <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>make install</userinput></screen>

    <para>
      To test the results, issue: <command>make check</command>. There are over
      25,000 tests. Some tests related to ipv6 may indicate errors.  If the
      tests are run in a directory that has a world writable component (e.g.
      /tmp) then several additional tests may fail. A few tests may fail due
      to system configuration expectations.
    </para>

<!-- With 3.0.2:
Finished tests in 443.541527s, 47.5739 tests/s, 6031.9921 assertions/s.
21101 tests, 2675439 assertions, 4 failures, 1 errors, 45 skips

with 3.2.0 there are several summaries:
* PASS all 1789 tests
* Finished tests in 6.815561s, 45.6309 tests/s, 264.2482 assertions/s.
  311 tests, 1801 assertions, 0 failures, 0 errors, 12 skips
* Finished tests in 462.613063s, 50.5649 tests/s, 12069.0885 assertions/s.
  23392 tests, 5583318 assertions, 3 failures, 0 errors, 79 skips
-->

    <note>
      <para>
        If you have Ruby-On-Rails applications installed and did an
        upgrade of <application>Ruby</application> by installing this
        package, you might need to run an update there, too
        (as the &root; user):
      </para>

<screen role="nodump"><userinput>cd /path/to/web/app
bundle update rake</userinput></screen>

      <para>
        and restart the webserver which serves the application.
      </para>

    </note>

  </sect2>

  <sect2 role="commands">
    <title>Command Explanations</title>

    <para>
      <parameter>--enable-shared</parameter>: This switch enables building
      the <filename class="libraryfile">libruby</filename> shared library.
    </para>

    <para>
      <parameter>--without-baseruby</parameter>: This switch prevents using the
      system <command>ruby</command> if it is already installed. The build
      system will use the newly built version instead.
    </para>

    <para>
      <option>--disable-install-doc</option>: This switch disables building and
      installing rdoc indexes and C API documents.
    </para>

    <para>
      <option>--disable-install-rdoc</option>: This switch disables building
      and installing rdoc indexes.
    </para>

    <para>
      <option>--disable-install-capi</option>: This switch disables building
      and installing C API documents.
    </para>

  </sect2>

  <sect2 role="content">
    <title>Contents</title>

    <segmentedlist>
      <segtitle>Installed Programs</segtitle>
      <segtitle>Installed Libraries</segtitle>
      <segtitle>Installed Directories</segtitle>

      <seglistitem>
        <seg>
          bundle,
          bundler,
          erb,
          gem,
          irb,
          racc,
          rake,
          rbs,
          rdbg,
          rdoc,
          ri,
          ruby, and
          typeprof
        </seg>
        <seg>
          libruby.so
        </seg>
        <seg>
          /usr/include/ruby-&ruby-minor-version;.0,
          /usr/lib/ruby,
          /usr/share/doc/ruby-&ruby-version; and
          /usr/share/ri
        </seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="bundle">
        <term><command>bundle</command></term>
        <listitem>
          <para>
            creates bundles of Ruby Gems
          </para>
          <indexterm zone="ruby bundle">
            <primary sortas="b-bundle">bundle</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="bundler">
        <term><command>bundler</command></term>
        <listitem>
          <para>
            manages an application's dependencies throughout it's lifecycle
          </para>
          <indexterm zone="ruby bundler">
            <primary sortas="b-bundler">bundler</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="erb">
        <term><command>erb</command></term>
        <listitem>
          <para>
            is a command line front-end for eRuby, which provides a templating
            system for <application>Ruby</application>
          </para>
          <indexterm zone="ruby erb">
            <primary sortas="b-erb">erb</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="gem">
        <term><command>gem</command></term>
        <listitem>
          <para>
            is the command for RubyGems, which is a sophisticated package
            manager for <application>Ruby</application>. This is similar
            to Python's 'pip' command
          </para>
          <indexterm zone="ruby gem">
            <primary sortas="b-gem">gem</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="irb">
        <term><command>irb</command></term>
        <listitem>
          <para>
            is the interactive interface for
            <application>Ruby</application>
          </para>
          <indexterm zone="ruby irb">
            <primary sortas="b-irb">irb</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="rake">
        <term><command>rake</command></term>
        <listitem>
          <para>
            is a make-like build utility for <application>Ruby</application>
          </para>
          <indexterm zone="ruby rake">
            <primary sortas="b-rake">rake</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="rdbg">
        <term><command>rdbg</command></term>
        <listitem>
          <para>
            is an interactive debugger for <application>Ruby</application>
          </para>
          <indexterm zone="ruby rdbg">
            <primary sortas="b-rdbg">rdbg</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="rdoc">
        <term><command>rdoc</command></term>
        <listitem>
          <para>
            generates <application>Ruby</application> documentation
          </para>
          <indexterm zone="ruby rdoc">
            <primary sortas="b-rdoc">rdoc</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ri">
        <term><command>ri</command></term>
        <listitem>
          <para>
            displays documentation from a database on
            <application>Ruby</application> classes, modules, and methods
          </para>
          <indexterm zone="ruby ri">
            <primary sortas="b-ri">ri</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ruby-prog">
        <term><command>ruby</command></term>
        <listitem>
          <para>
            is an interpreted scripting language for quick
            and easy object-oriented programming
          </para>
          <indexterm zone="ruby ruby-prog">
            <primary sortas="b-ruby">ruby</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libruby">
        <term><filename role="libraryfile">libruby.so</filename></term>
        <listitem>
          <para>
            contains the API functions required by <application>Ruby</application>
          </para>
          <indexterm zone="ruby libruby">
            <primary sortas="c-libruby">libruby.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>