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12 <title>GLEP 23 -- Portage handling of ACCEPT_LICENSE</title>
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28 <table class="rfc2822 field-list" frame="void" rules="none">
29 <col class="field-name" />
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31 <tbody valign="top">
32 <tr class="field"><th class="field-name">GLEP:</th><td class="field-body">23</td>
33 </tr>
34 <tr class="field"><th class="field-name">Title:</th><td class="field-body">Portage handling of ACCEPT_LICENSE</td>
35 </tr>
36 <tr class="field"><th class="field-name">Version:</th><td class="field-body">1.2</td>
37 </tr>
38 <tr class="field"><th class="field-name">Last-Modified:</th><td class="field-body"><a class="reference" href="http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/proj/en/glep/glep-0023.txt?cvsroot=gentoo">2004/03/11 02:35:40</a></td>
39 </tr>
40 <tr class="field"><th class="field-name">Author:</th><td class="field-body">Jason Stubbs &lt;jstubbs&#32;&#97;t&#32;gentoo.org&gt;,</td>
41 </tr>
42 <tr class="field"><th class="field-name">Status:</th><td class="field-body">Draft</td>
43 </tr>
44 <tr class="field"><th class="field-name">Type:</th><td class="field-body">Standards Track</td>
45 </tr>
46 <tr class="field"><th class="field-name">Content-Type:</th><td class="field-body"><a class="reference" href="glep-0002.html">text/x-rst</a></td>
47 </tr>
48 <tr class="field"><th class="field-name">Created:</th><td class="field-body">9-Mar-2004</td>
49 </tr>
50 <tr class="field"><th class="field-name">Post-History:</th><td class="field-body">8-Mar-2004 10-Mar-2004</td>
51 </tr>
52 </tbody>
53 </table>
54 <hr />
55 <div class="contents topic" id="contents">
56 <p class="topic-title"><a name="contents">Contents</a></p>
57 <ul class="simple">
58 <li><a class="reference" href="#abstract" id="id5" name="id5">Abstract</a></li>
59 <li><a class="reference" href="#motivation" id="id6" name="id6">Motivation</a></li>
60 <li><a class="reference" href="#specification" id="id7" name="id7">Specification</a><ul>
61 <li><a class="reference" href="#ebuild-license-variable" id="id8" name="id8">Ebuild LICENSE Variable</a></li>
62 <li><a class="reference" href="#license-groups" id="id9" name="id9">License Groups</a></li>
63 <li><a class="reference" href="#accept-license" id="id10" name="id10">ACCEPT_LICENSE</a></li>
64 <li><a class="reference" href="#emerge-behaviour" id="id11" name="id11">Emerge Behaviour</a></li>
65 </ul>
66 </li>
67 <li><a class="reference" href="#rationale" id="id12" name="id12">Rationale</a></li>
68 <li><a class="reference" href="#reference-implementation" id="id13" name="id13">Reference Implementation</a></li>
69 <li><a class="reference" href="#backwards-compatibility" id="id14" name="id14">Backwards Compatibility</a></li>
70 <li><a class="reference" href="#references" id="id15" name="id15">References</a></li>
71 <li><a class="reference" href="#copyright" id="id16" name="id16">Copyright</a></li>
72 </ul>
73 </div>
74 <div class="section" id="abstract">
75 <h1><a class="toc-backref" href="#id5" name="abstract">Abstract</a></h1>
76 <p>Currently, every ebuild in the portage tree is required to have a valid
77 LICENSE entry. However, the syntax of this entry is not officially
78 defined and the entry itself is only used when outputting package
79 details.</p>
80 </div>
81 <div class="section" id="motivation">
82 <h1><a class="toc-backref" href="#id6" name="motivation">Motivation</a></h1>
83 <p>Many users wish to regulate the software they install with regards to
84 licenses for various reasons <a class="footnote-reference" href="#id3" id="id1" name="id1">[1]</a>. Some want a system free of any
85 software that is not OSI-approved; others are simply curious as to what
86 licenses they are implicitly accepting.</p>
87 <p>Furthermore, some software requires that a user interactively accept its
88 license for its author's to consider it legally binding. This is
89 currently implemented using <tt class="literal"><span class="pre">eutils.eclass</span></tt>.</p>
90 </div>
91 <div class="section" id="specification">
92 <h1><a class="toc-backref" href="#id7" name="specification">Specification</a></h1>
93 <div class="section" id="ebuild-license-variable">
94 <h2><a class="toc-backref" href="#id8" name="ebuild-license-variable">Ebuild LICENSE Variable</a></h2>
95 <p>Most ebuilds are for software which is released under a single license.
96 In these cases, the current LICENSE variable can remain as is. For
97 example:</p>
98 <pre class="literal-block">
99 LICENSE=&quot;single-license&quot;
100 </pre>
101 <p>However, there are several ebuilds for software which is released under
102 several licenses, of which the user must accept one, some or all <a class="footnote-reference" href="#id4" id="id2" name="id2">[2]</a>.
103 To complicate this, some ebuilds include optional components which fall
104 under a different license.</p>
105 <p>To accomodate these cases, LICENSE syntax should accomodate all
106 functionality offered by a DEPEND string. To keep things simple, this
107 GLEP proposes that the syntax be identical. For example:</p>
108 <pre class="literal-block">
109 LICENSE=&quot;mandatory-license
110 || ( choosable-licence1 chooseable-license-2 )
111 useflag? ( optional-component-license )&quot;
112 </pre>
113 </div>
114 <div class="section" id="license-groups">
115 <h2><a class="toc-backref" href="#id9" name="license-groups">License Groups</a></h2>
116 <p>Almost all users are willing to install any software that is
117 FSF-approved. Other users are willing to install any software and
118 implicitly accept its license. To this end, portage will also need to
119 handle grouping of licenses.</p>
120 <p>At a minimum, there needs to be the groups <tt class="literal"><span class="pre">GPL-COMPATIBLE</span></tt>,
121 <tt class="literal"><span class="pre">FSF-APPROVED</span></tt>, <tt class="literal"><span class="pre">OSI-APPROVED</span></tt> and <tt class="literal"><span class="pre">NON-INTERACTIVE</span></tt>.
122 <tt class="literal"><span class="pre">NON-INTERACTIVE</span></tt> licenses are those that don't require interactive
123 acceptance for to be considered legally binding. This is the current
124 behaviour of portage.</p>
125 </div>
126 <div class="section" id="accept-license">
127 <h2><a class="toc-backref" href="#id10" name="accept-license">ACCEPT_LICENSE</a></h2>
128 <p>This GLEP proposes that a user be able to explicitly accept or decline
129 licenses by editing a new variable <tt class="literal"><span class="pre">ACCEPT_LICENSE</span></tt> in
130 <tt class="literal"><span class="pre">/etc/make.conf</span></tt>. Again, to keep things simple, the syntax should be
131 similar to that of other incrementals. For example:</p>
132 <pre class="literal-block">
133 ACCEPT_LICENSE=&quot;-* accepted-license -declined-license&quot;
134 </pre>
135 <p>As an extension, <tt class="literal"><span class="pre">ACCEPT_LICENSE</span></tt> must also support <a class="reference" href="#license-groups">license groups</a>.
136 This GLEP proposes that the license group be prepended by the special
137 character &quot;<tt class="literal"><span class="pre">&#64;</span></tt>&quot;. For example:</p>
138 <pre class="literal-block">
139 ACCEPT_LICENSE=&quot;-* &#64;FSF-APPROVED&quot;
140 </pre>
141 </div>
142 <div class="section" id="emerge-behaviour">
143 <h2><a class="toc-backref" href="#id11" name="emerge-behaviour">Emerge Behaviour</a></h2>
144 <p>At a minimum, emerge must handle unaccepted licenses the same way that
145 it handles blockers. That is, with the --pretend flag the
146 not-yet-accepted license should be listed in the output. Without the
147 --pretend flag, emerge should stop before any software is installed.</p>
148 <p>This GLEP proposes that, unlike blockers, dependencies for software
149 should be checked regardless of license acceptance. Doing so will allow
150 the user to review all necessary licenses before initiating an actual
151 emerge.</p>
152 <p>It is also proposed that the --ask option will display an unaccepted
153 license and ask for acceptance, but not update any configuration files
154 at this stage. Finally, the --verbose option should also list the
155 licenses accepted for each package.</p>
156 </div>
157 </div>
158 <div class="section" id="rationale">
159 <h1><a class="toc-backref" href="#id12" name="rationale">Rationale</a></h1>
160 <p>An implementation of this proposal should make it easy for users wishing
161 to regulate their software without affecting those that don't.</p>
162 </div>
163 <div class="section" id="reference-implementation">
164 <h1><a class="toc-backref" href="#id13" name="reference-implementation">Reference Implementation</a></h1>
165 <p>TODO</p>
166 </div>
167 <div class="section" id="backwards-compatibility">
168 <h1><a class="toc-backref" href="#id14" name="backwards-compatibility">Backwards Compatibility</a></h1>
169 <p>There should be no change to the user experience without the user
170 explicitly choosing to do so. This mandates that the
171 configuration variable be named <tt class="literal"><span class="pre">ACCEPT_LICENSE</span></tt> as some users may
172 already have it set due to ebuilds using <tt class="literal"><span class="pre">eutil.eclass</span></tt>'s
173 implementation. It also mandates that the default <tt class="literal"><span class="pre">ACCEPT_LICENSE</span></tt> be
174 set to <tt class="literal"><span class="pre">&#64;NON-INTERACTIVE</span></tt>.</p>
175 </div>
176 <div class="section" id="references">
177 <h1><a class="toc-backref" href="#id15" name="references">References</a></h1>
178 <table class="footnote" frame="void" id="id3" rules="none">
179 <colgroup><col class="label" /><col /></colgroup>
180 <tbody valign="top">
181 <tr><td class="label"><a class="fn-backref" href="#id1" name="id3">[1]</a></td><td>Gentoo Linux Bug 17367
182 (<a class="reference" href="http://bugs.gentoo.org/show_bug.cgi?id=17367">http://bugs.gentoo.org/show_bug.cgi?id=17367</a>)</td></tr>
183 </tbody>
184 </table>
185 <table class="footnote" frame="void" id="id4" rules="none">
186 <colgroup><col class="label" /><col /></colgroup>
187 <tbody valign="top">
188 <tr><td class="label"><a class="fn-backref" href="#id2" name="id4">[2]</a></td><td>Gentoo Linux Bug 34146
189 (<a class="reference" href="http://bugs.gentoo.org/show_bug.cgi?id=34146">http://bugs.gentoo.org/show_bug.cgi?id=34146</a>)</td></tr>
190 </tbody>
191 </table>
192 </div>
193 <div class="section" id="copyright">
194 <h1><a class="toc-backref" href="#id16" name="copyright">Copyright</a></h1>
195 <p>This document has been placed in the public domain.</p>
196 </div>
197 </div>
198
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