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 =======================================================================
19 =======================================================================
21 Samba Maintainers System
22 ------------------------
24 The Samba project has adopted a maintainers system, with the following
27 - we have created a new 'MAINTAINERS.txt' file in the root of the git
30 - that file will contain a list of subsystems, and along with each
31 subsystem a list of maintainers
33 - subsystems may be subdirectories, or logical groups of files (for
34 example "build system" or "selftest" could be subsystems that span
37 - if a subsystem is not listed in the MAINTAINERS.txt file, then this
38 maintainers proposal does not apply to that subsystem. The previous
39 Samba development methods apply to unlisted subsystems.
41 - when we first create the MAINTAINERS.txt it will be empty, thus on
42 the first day of adoption there is no actual change to our
45 - we will add subsystems to the MAINTAINERS.txt file via consensus
46 within the Samba Team. This means that someone would propose
47 themselves, or another team member, as a subsystem maintainer, and
48 if there are no objections then they can push a change to the
49 maintainers file after a couple of days waiting for replies. If
50 there is an existing maintainer for that subsystem then at minimum
51 the person proposing should wait for a positive ack from the
54 - a typical subsystem declaration would be:
58 Andrew Bartlett <abartlet@samba.org>
59 Andrew Tridgell <tridge@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 - the maintainers for a subsystem may update the policy for that
66 subsystem at any time by pushing a commit to the MAINTAINERS.txt
67 file. Significant changes should also be sent to the
68 samba-technical list to ensure that all developers are aware of the
71 - a subsystem may have multiple maintainers, and it is expected that
72 this will be the case for many of our subsystems.
74 - a maintainer may delegate responsibility to someone else for a
75 period of time (such as during rapid development or when the
76 maintainer is away). A maintainer may also appoint a backup
77 maintainer. These changes should be noted in the maintainers file,
78 and removed when no longer relevent.
80 - maintainer handover would happen by agreement between the old and
81 new maintainer, and is signified by a commit to the MAINTAINERS.txt
82 file. If agreement cannot be reached then we can resolve the
83 disagreement using discussions on the team list. If agreement still
84 can't be reached then the maintainer won't change.
86 What does it mean to be a maintainer?
87 -------------------------------------
89 If you are a maintainer for a subsystem then you have some additional
90 rights and responsibilies for that code. Specifically:
92 - you should make time to review any proposed changes to any
93 subsystems that you maintain. You should then provide feedback on
94 proposed changes or sign off on the changes once you are happy with
97 - you may choose the policy for the subsystems you maintain. That
98 policy could be a permissive one, where you allow for small changes
99 without review, or it could be a strict one, where you only allow
100 reviewed changes to be pushed.
102 - being a maintainer for a subsystem does not override the "right of
103 veto" of other team members for technical objections. See the
104 "right of veto" section below for more information.
106 - the maintainers can set the developmental direction of the
107 subsystem, but should strive to achieve concensus where possible
108 with other team members for the benefit of the whole
111 Note that if you set a permissive policy on your subsystem, so that
112 small changes may be pushed without review, you are still responsible
113 for reviewing changes if someone specifically asks you to review a
116 Try to reuse policy wording
117 ---------------------------
119 It would be good if we end up with only a few sets of policy wording,
120 rather than a completely different policy for each subsystem. To try
121 to achieve that, maintainers should try to re-use an existing policy
128 Over the last few years the Samba Team has started to use a +1/-1
129 voting system, which was inspired by the Apache voting system for
130 technical issues (see http://www.apache.org/foundation/voting.html).
132 For the maintainers proposal to work, I think we need to ensure that
133 everyone understands what a -1 "veto" vote means on a technical issue.
135 For purely technical issues, the +1/-1 voting system should not be a
136 "most votes wins" system. Instead a single -1 vote is supposed to
137 override any number of +1 votes, so a -1 vote is a "veto", and all
138 team members have the right to give a -1 veto vote on any purely
141 Along with the right to give a -1 veto vote comes the responsibility
142 to backup that veto with a technical argument, and the willingness to
143 then defend your argument in any subsequent discussions and to work
144 with the patch proposer to find a solution. If you do not backup your
145 -1 veto vote, or you are unwilling on unable to participate in any
146 discussions that arise from that veto, then the veto vote may be
149 Note that a veto is supposed to be used only for purely technical
150 reasons, so for example pointing out a security concern with a change,
151 or pointing out that the code may segfault or cause a regression of