kumquat-buildroot/docs/manual/makeusers-syntax.txt
Thomas De Schampheleire 86a415df8a manual: use one-line titles instead of two-line titles (trivial)
Asciidoc supports two syntaxes for section titles: two-line titles (title
plus underline consisting of a particular symbol), and one-line titles
(title prefixed with a specific number of = signs).

The two-line title underlines are:
Level 0 (top level):     ======================
Level 1:                 ----------------------
Level 2:                 ~~~~~~~~~~~~~~~~~~~~~~
Level 3:                 ^^^^^^^^^^^^^^^^^^^^^^
Level 4 (bottom level):  ++++++++++++++++++++++

and the one-line title prefixes:
= Document Title (level 0) =
== Section title (level 1) ==

=== Section title (level 2) ===
==== Section title (level 3) ====
===== Section title (level 4) =====

The buildroot manual is currenly using the two-line titles, but this has
multiple disadvantages:

- asciidoc also uses some of the underline symbols for other purposes (like
  preformatted code, example blocks, ...), which makes it difficult to do
  mass replacements, such as a planned follow-up patch that needs to move
  all sections one level down.

- it is difficult to remember which level a given underline symbol (=-~^+)
  corresponds to, while counting = signs is easy.

This patch changes all two-level titles to one-level titles in the manual.
The bulk of the change was done with the following Python script, except for
the level 1 titles (-----) as these underlines are also used for literal
code blocks.
This patch only changes the titles, no other changes. In
adding-packages-directory.txt, I did add missing newlines between some
titles and their content.

----------------------------------------------------------------------------
#!/usr/bin/env python

import sys
import mmap
import re

for input in sys.argv[1:]:

    f = open(input, 'r+')
    f.flush()
    s = mmap.mmap(f.fileno(), 0)

    # Level 0 (top level):     ======================   =
    # Level 1:                 ----------------------   ==
    # Level 2:                 ~~~~~~~~~~~~~~~~~~~~~~   ===
    # Level 3:                 ^^^^^^^^^^^^^^^^^^^^^^   ====
    # Level 4 (bottom level):  ++++++++++++++++++++++   =====

    def replace_title(s, symbol, replacement):
        pattern = re.compile(r'(.+\n)\%s{2,}\n' % symbol, re.MULTILINE)
        return pattern.sub(r'%s \1' % replacement, s)

    new = s
    new = replace_title(new, '=', '=')
    new = replace_title(new, '+', '=====')
    new = replace_title(new, '^', '====')
    new = replace_title(new, '~', '===')
    #new = replace_title(new, '-', '==')

    s.seek(0)
    s.write(new)
    s.resize(s.tell())
    s.close()
    f.close()

----------------------------------------------------------------------------

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2014-05-02 10:27:59 +02:00

87 lines
3.3 KiB
Plaintext

// -*- mode:doc -*- ;
[[makeuser-syntax]]
== Makeuser syntax documentation
The syntax to create users is inspired by the makedev syntax, above, but
is specific to Buildroot.
The syntax for adding a user is a space-separated list of fields, one
user per line; the fields are:
|=================================================================
|username |uid |group |gid |password |home |shell |groups |comment
|=================================================================
Where:
- +username+ is the desired user name (aka login name) for the user.
It can not be +root+, and must be unique.
- +uid+ is the desired UID for the user. It must be unique, and not
+0+. If set to +-1+, then a unique UID will be computed by Buildroot
in the range [1000...1999]
- +group+ is the desired name for the user's main group. It can not
be +root+. If the group does not exist, it will be created.
- +gid+ is the desired GID for the user's main group. It must be unique,
and not +0+. If set to +-1+, and the group does not already exist, then
a unique GID will be computed by Buildroot in the range [1000..1999]
- +password+ is the crypt(3)-encoded password. If prefixed with +!+,
then login is disabled. If prefixed with +=+, then it is interpreted
as clear-text, and will be crypt-encoded (using MD5). If prefixed with
+!=+, then the password will be crypt-encoded (using MD5) and login
will be disabled. If set to +*+, then login is not allowed.
- +home+ is the desired home directory for the user. If set to '-', no
home directory will be created, and the user's home will be +/+.
Explicitly setting +home+ to +/+ is not allowed.
- +shell+ is the desired shell for the user. If set to +-+, then
+/bin/false+ is set as the user's shell.
- +groups+ is the comma-separated list of additional groups the user
should be part of. If set to +-+, then the user will be a member of
no additional group. Missing groups will be created with an arbitrary
+gid+.
- +comment+ (aka https://en.wikipedia.org/wiki/Gecos_field[GECOS]
field) is an almost-free-form text.
There are a few restrictions on the content of each field:
* except for +comment+, all fields are mandatory.
* except for +comment+, fields may not contain spaces.
* no field may contain a colon (+:+).
If +home+ is not +-+, then the home directory, and all files below,
will belong to the user and its main group.
Examples:
----
foo -1 bar -1 !=blabla /home/foo /bin/sh alpha,bravo Foo user
----
This will create this user:
- +username+ (aka login name) is: +foo+
- +uid+ is computed by Buildroot
- main +group+ is: +bar+
- main group +gid+ is computed by Buildroot
- clear-text +password+ is: +blabla+, will be crypt(3)-encoded, and login is disabled.
- +home+ is: +/home/foo+
- +shell+ is: +/bin/sh+
- +foo+ is also a member of +groups+: +alpha+ and +bravo+
- +comment+ is: +Foo user+
----
test 8000 wheel -1 = - /bin/sh - Test user
----
This will create this user:
- +username+ (aka login name) is: +test+
- +uid+ is : +8000+
- main +group+ is: +wheel+
- main group +gid+ is computed by Buildroot, and will use the value defined in the rootfs skeleton
- +password+ is empty (aka no password).
- +home+ is +/+ but will not belong to +test+
- +shell+ is: +/bin/sh+
- +test+ is not a member of any additional +groups+
- +comment+ is: +Test user+