4 This file lists the maintainers for subsystems in Samba. Please see
5 the end of the file for information on how the maintainers system
6 works. If you can't work out who the maintainer is for some code,
7 please ask on the samba-technical list or on the samba-technical IRC
11 =======================================================================
13 directory: lib/tevent/
15 Stefan Metzmacher <metze@samba.org>
17 All commits require review by the maintainer.
19 If no maintainer is available for longer than a week
20 discussion on the samba-technical list and review by 2
21 Samba-Team members is needed (e.g. Andrew Tridgell <tridge@samba.org>
22 and Volker Lendecke <vl@samba.org>).
24 Larger changes need also discussion on the samba-technical list
25 and review by all maintainers.
27 directory: lib/tsocket/
29 Stefan Metzmacher <metze@samba.org>
31 All commits require review by the maintainer.
33 If no maintainer is available for longer than a week
34 discussion on the samba-technical list and review by 2
35 Samba-Team members is needed.
37 Larger changes need also discussion on the samba-technical list
38 and review by all maintainers.
40 files: buildtools/**, source4/**/wscript
42 Andrew Tridgell <tridge@samba.org>
43 Jelmer Vernooij <jelmer@samba.org>
45 small commits to master allowed if all existing tests
46 pass. Larger commits require discussion on the samba-technical
47 list and review by the maintainer
51 Rusty Russell <rusty@samba.org>
53 Mail/CC changes to the maintainer, commit the changes
54 unless the maintainer objects.
58 Andrew Tridgell <tridge@samba.org>
59 Rusty Russell <rusty@samba.org>
61 small commits to master allowed if all existing tests
62 pass. Larger commits require discussion on samba-technical
63 list and review by the maintainer
65 files: lib/tevent/py*, lib/talloc/py*, source4/lib/ldb/py*, lib/tdb/py*
67 Jelmer Vernooij <jelmer@samba.org>
69 Larger commits require pre-push review by the maintainer or
70 one of the maintainers of the containing subsystem.
72 Other non-trivial (typo, etc) commits require pre- or post-push review by the
73 maintainer or one of the maintainers of the containing subsystem.
76 =======================================================================
78 Samba Maintainers System
79 ------------------------
81 The Samba project has adopted a maintainers system, with the following
84 - we have created a new 'MAINTAINERS.txt' file in the root of the git
87 - that file will contain a list of subsystems, and along with each
88 subsystem a list of maintainers
90 - subsystems may be subdirectories, or logical groups of files (for
91 example "build system" or "selftest" could be subsystems that span
94 - if a subsystem is not listed in the MAINTAINERS.txt file, then this
95 maintainers proposal does not apply to that subsystem. The previous
96 Samba development methods apply to unlisted subsystems.
98 - when we first create the MAINTAINERS.txt it will be empty, thus on
99 the first day of adoption there is no actual change to our
100 development practices
102 - we will add subsystems to the MAINTAINERS.txt file via consensus
103 within the Samba Team. This means that someone would propose
104 themselves, or another team member, as a subsystem maintainer, and
105 if there are no objections then they can push a change to the
106 maintainers file after a couple of days waiting for replies. If
107 there is an existing maintainer for that subsystem then at minimum
108 the person proposing should wait for a positive ack from the
111 - a typical subsystem declaration would be:
115 Andrew Bartlett <abartlet@samba.org>
116 Andrew Tridgell <tridge@samba.org>
118 small commits to master allowed if all existing tests
119 pass. Larger commits require discussion on samba-technical
120 list and review by the maintainer
122 - the maintainers for a subsystem may update the policy for that
123 subsystem at any time by pushing a commit to the MAINTAINERS.txt
124 file. Significant changes should also be sent to the
125 samba-technical list to ensure that all developers are aware of the
128 - a subsystem may have multiple maintainers, and it is expected that
129 this will be the case for many of our subsystems.
131 - a maintainer may delegate responsibility to someone else for a
132 period of time (such as during rapid development or when the
133 maintainer is away). A maintainer may also appoint a backup
134 maintainer. These changes should be noted in the maintainers file,
135 and removed when no longer relevent.
137 - maintainer handover would happen by agreement between the old and
138 new maintainer, and is signified by a commit to the MAINTAINERS.txt
139 file. If agreement cannot be reached then we can resolve the
140 disagreement using discussions on the team list. If agreement still
141 can't be reached then the maintainer won't change.
143 What does it mean to be a maintainer?
144 -------------------------------------
146 If you are a maintainer for a subsystem then you have some additional
147 rights and responsibilies for that code. Specifically:
149 - you should make time to review any proposed changes to any
150 subsystems that you maintain. You should then provide feedback on
151 proposed changes or sign off on the changes once you are happy with
154 - you may choose the policy for the subsystems you maintain. That
155 policy could be a permissive one, where you allow for small changes
156 without review, or it could be a strict one, where you only allow
157 reviewed changes to be pushed.
159 - being a maintainer for a subsystem does not override the "right of
160 veto" of other team members for technical objections. See the
161 "right of veto" section below for more information.
163 - the maintainers can set the developmental direction of the
164 subsystem, but should strive to achieve concensus where possible
165 with other team members for the benefit of the whole
168 Note that if you set a permissive policy on your subsystem, so that
169 small changes may be pushed without review, you are still responsible
170 for reviewing changes if someone specifically asks you to review a
173 Try to reuse policy wording
174 ---------------------------
176 It would be good if we end up with only a few sets of policy wording,
177 rather than a completely different policy for each subsystem. To try
178 to achieve that, maintainers should try to re-use an existing policy
185 Over the last few years the Samba Team has started to use a +1/-1
186 voting system, which was inspired by the Apache voting system for
187 technical issues (see http://www.apache.org/foundation/voting.html).
189 For the maintainers proposal to work, I think we need to ensure that
190 everyone understands what a -1 "veto" vote means on a technical issue.
192 For purely technical issues, the +1/-1 voting system should not be a
193 "most votes wins" system. Instead a single -1 vote is supposed to
194 override any number of +1 votes, so a -1 vote is a "veto", and all
195 team members have the right to give a -1 veto vote on any purely
198 Along with the right to give a -1 veto vote comes the responsibility
199 to backup that veto with a technical argument, and the willingness to
200 then defend your argument in any subsequent discussions and to work
201 with the patch proposer to find a solution. If you do not backup your
202 -1 veto vote, or you are unwilling on unable to participate in any
203 discussions that arise from that veto, then the veto vote may be
206 Note that a veto is supposed to be used only for purely technical
207 reasons, so for example pointing out a security concern with a change,
208 or pointing out that the code may segfault or cause a regression of