1REPOMAPPER(1) Development Tools REPOMAPPER(1)
2
6 repomapper - update and manipulate contributor maps
7
9 repomapper [-i] [-p passwordfile] [-u updatefile] [-h host] contribmap
10
12 Older, centralized version-control systems such as CVS and SVN
13 centralize a repository on one host and identify users by their account
14 names on that host. Distributed version-control systems such as git and
15 Mercurial identify users by a netwide-unique ID consisting of a
16 name-among-humans followed by an email address.
17 When moving a repository from a centralized to a distributed system,
19 therefore, one of the prerequisites is a contributor map that
20 associates each account name on the old system to a DVCS-style ID on
21 the new one. This tool automates parts of that process.
22 The main argument file must be a contributor map such as is read by the
24 authors read subcommand of reposurgeon(1). It may be a fresh or stub
25 map, produced by authors write before any human-name or email
26 information has been added to the repository. Or it may have
27 name-among-humans and email information filled in for some entries.
28 A stub map entry looks something like this:
30 foonly = foonly <foonly>
32 The same entry, fully filled in, might look something like this:
34 foonly = Fred Foonly <foonly@fubar.net>
36 The default behavior of the tool is to report all map entries, in
38 effect a sorting copy of the file.
39 With -i, it reports only entries that are not yet in DVCS form - that
41 is, either the fullname field on the right side of the equals sign is
42 identical to the account name on the left, or the email field contains
43 no @-sign, or both.
44 With the -p option, this tool fills in the full-name field using the
46 password file given as the option's argument. Only the username and the
47 comment (or 'gecos') field containing the user's name-among-humans are
48 used. Other fields are ignored, including the password-hash field. (On
49 modern Unixes this field does not contain the actual hash, which lives
50 in a different file named /etc/shadow, so /etc/passwd can be shared
51 without security risk.)
52 In the -p mode, for each entry in the contrib file the program looks
54 for a username in the password file matching the name to the left of
55 the equal sign. If a match is found, the user's name-among-humans is
56 extracted from the gecos field and replaces the text between the “=”
57 and the “<”.
58 Thus, the stub line above and the /etc/passwd line
60 foonly:x:1000:1000:Fred Foonly,,,:/home/foonly:/bin/bash
62 will combine to produce this on output:
64 foonly = Fred Foonly <foonly>
66 Note that the email-address part (and, if present, the optional
68 trailing timezone field) are not normally modified.
69 However, if the -h option is given, the argument is taken to be a host
71 name which should be appended (after a @) to every email field that
72 does not already contain a @. The argument would typically be the
73 fully-qualified domain name of the repository host.
74 Thus, if the passwd file still contains an entry for every committer
76 (which might not be the case if inactive committer accounts were ever
77 removed), -p mode combined with an -h option can produce an entire,
78 valid contributor map.
79 In the -u mode of operation, the option argument must be a second
81 contributor file, which is taken as a source of updates. Each
82 contributor entry with a username not matching any in the first
83 contributor map is copied into the first map, which is output.
84 Output from this tool is always a contrib map sorted by username.
86
88 reposurgeon(1).
89
91 Eric S. Raymond <esr@thyrsus.com>. This tool is distributed with
92 reposurgeon; see the project page at
93 http://www.catb.org/~esr/reposurgeon.
94repomapper 01/30/2020 REPOMAPPER(1)