Cache the result of uname(3) such that we don't need to call it

[mandoc.git] / mandocdb.8

diff --git a/mandocdb.8 b/mandocdb.8
index c4295130e1cfd03ae0ef3b9da7dc58c2bdf5cd74..1bb6547b857367f7a50d13a4242fcf12043513b4 100644 (file)
--- a/mandocdb.8
+++ b/mandocdb.8
@@ -1,6 +1,6 @@
-.\"    $Id: mandocdb.8,v 1.6 2011/11/23 09:52:20 kristaps Exp $
+.\"    $Id: mandocdb.8,v 1.20 2013/10/01 20:56:18 schwarze Exp $

 .\"
 .\"

-.\" Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+.\" Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>

 .\"
 .\" Permission to use, copy, modify, and distribute this software for any
 .\" purpose with or without fee is hereby granted, provided that the above
 .\"
 .\" Permission to use, copy, modify, and distribute this software for any
 .\" purpose with or without fee is hereby granted, provided that the above


@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"

-.Dd $Mdocdate: November 23 2011 $
+.Dd $Mdocdate: October 1 2013 $

 .Dt MANDOCDB 8
 .Os
 .Sh NAME
 .Dt MANDOCDB 8
 .Os
 .Sh NAME


@@ -22,187 +22,156 @@
 .Nd index UNIX manuals
 .Sh SYNOPSIS
 .Nm
 .Nd index UNIX manuals
 .Sh SYNOPSIS
 .Nm

-.Op Fl v
-.Op Ar dir...
+.Op Fl anvW
+.Op Fl C Ar file

 .Nm
 .Nm

-.Op Fl v
+.Op Fl anvW
+.Ar dir ...
+.Nm
+.Op Fl nvW

 .Fl d Ar dir
 .Op Ar
 .Nm
 .Fl d Ar dir
 .Op Ar
 .Nm

-.Op Fl v
+.Op Fl nvW

 .Fl u Ar dir
 .Op Ar
 .Fl u Ar dir
 .Op Ar

+.Nm
+.Fl t Ar

 .Sh DESCRIPTION
 The
 .Nm
 utility extracts keywords from
 .Ux
 .Sh DESCRIPTION
 The
 .Nm
 utility extracts keywords from
 .Ux

-manuals and indexes them in a
-.Sx Keyword Database
+manuals and indexes them in a database for fast retrieval by
+.Xr apropos 1 ,
+.Xr whatis 1 ,

 and
 and

-.Sx Index Database
-for fast retrieval.
+.Xr man 1 .
+.Pp
+By default,
+.Nm
+creates a database in each
+.Ar dir
+using the files
+.Sm off
+.Sy man Ar section Li /
+.Op Ar arch Li /
+.Ar title . section
+.Sm on
+and
+.Sm off
+.Sy cat Ar section Li /
+.Op Ar arch Li /
+.Ar title . Sy 0
+.Sm on
+in that directory.
+Existing databases are replaced.
+If
+.Ar dir
+is not provided,
+.Nm
+uses the default paths stipulated by
+.Xr manpath 1 ,
+or
+.Xr man.conf 5 .
+.Pp

 The arguments are as follows:
 The arguments are as follows:

-.Bl -tag -width Ds
+.Bl -tag -width "-C file"
+.It Fl a
+Use all directories and files found below
+.Ar dir ... .
+.It Fl C Ar file
+Specify an alternative configuration
+.Ar file
+in
+.Xr man.conf 5
+format.

 .It Fl d Ar dir
 Merge (remove and re-add)
 .Ar
 .It Fl d Ar dir
 Merge (remove and re-add)
 .Ar

-from the databases in
+to the database in

 .Ar dir .
 .Ar dir .

+.It Fl n
+Do not create or modify any database;
+scan and parse only.
+.It Fl t Ar
+Check the given
+.Ar files
+for potential problems.
+Implies
+.Fl a ,
+.Fl n ,
+and
+.Fl W .
+All diagnostic messages are printed to the standard output;
+the standard error output is not used.

 .It Fl u Ar dir
 Remove
 .Ar
 .It Fl u Ar dir
 Remove
 .Ar

-from the databases in
+from the database in

 .Ar dir .
 .Ar dir .

-.It Ar dir...
-Recursively add files rooted at each
-.Ar dir
-to the databases in the respective
-.Ar dir .
-Existing databases are truncated.

 .It Fl v
 .It Fl v

-Verbose operation.
-Use once to display all files added or removed and twice for keywords as
-well.
+Display all files added or removed to the index.
+.It Fl W
+Print warnings about potential problems with manual pages
+to the standard error output.

 .El
 .Pp
 .El
 .Pp

-By default,
-.Nm
-creates databases in each
-.Ar dir
-using files rooted in that directory.
-If
-.Ar dir
-is not provided,
-.Nm
-uses the default paths stipulated by
-.Xr man 1 .
-.Pp

 If fatal parse errors are encountered while parsing, the offending file
 is printed to stderr, omitted from the index, and the parse continues
 with the next input file.
 If fatal parse errors are encountered while parsing, the offending file
 is printed to stderr, omitted from the index, and the parse continues
 with the next input file.

-.Ss Index Database
-The index database,
-.Pa mandoc.index ,
-is a
-.Xr recno 3
-database with record values consisting of
-.Pp
-.Bl -enum -compact
-.It
-a nil-terminated filename,
-.It
-a nil-terminated manual section,
-.It
-a nil-terminated manual title,
-.It
-a nil-terminated architecture
-.Pq this is not often available
-.It
-and a nil-terminated description.
-.El
-.Pp
-Both the manual section and description may be zero-length if the record
-is unassigned.
-Entries are sequentially-numbered, but the filenames are unordered.
-.Ss Keyword Database
-The keyword database,
-.Pa mandoc.db ,
-is a
-.Xr btree 3
-database of nil-terminated keywords (record length is non-zero string
-length plus one) mapping to a 8-byte binary field consisting of the
-keyword type and source
-.Sx Index Database
-record number.
-The type, a 32-bit bit-mask in host order, consists of the following
-fields:
-.Pp
-.Bl -tag -width Ds -offset indent -compact
-.It Li 0x01
-The name of a manual page as given in the NAME section.
-.It Li 0x02
-A function prototype name as given in the SYNOPSIS section.
-.It Li 0x04
-A utility name as given in the SYNOPSIS section.
-.It Li 0x08
-An include file as given in the SYNOPSIS section.
-.It Li 0x10
-A variable name as given in the SYNOPSIS section.
-.It Li 0x20
-A standard as given in the STANDARDS section.
-.It Li 0x40
-An author as given in the AUTHORS section.
-.It Li 0x80
-A configuration as given in the SYNOPSIS section.
-.It Li 0x100
-Free-form descriptive text as given in the NAME section.
-.It Li 0x200
-Cross-links between manuals.
-Listed as the link name, then a period, then the link section.
-If the link has no section, the period terminates the string.
-.It Li 0x400
-Path reference as given in the FILES section.
-.It Li 0x800
-Environment variable as given in the ENVIRONMENT section.
-.It Li 0x1000
-Error codes as given in the ERRORS section.
-.El
-.Pp
-The last four bytes are a host-ordered record number within the
-.Sx Index Database .
-.Pp
-The
-.Nm
-utility is
-.Ud
-.Sh IMPLEMENTATION NOTES
-The time to construct a new database pair grows linearly with the
-number of keywords in the input files.
-However, removing or updating entries with
-.Fl u
-or
-.Fl d ,
-respectively, grows as a multiple of the index length and input size.

 .Sh FILES
 .Bl -tag -width Ds
 .It Pa mandoc.db
 .Sh FILES
 .Bl -tag -width Ds
 .It Pa mandoc.db

-A
-.Xr btree 3
-keyword database mapping keywords to a type and file reference in
-.Pa mandoc.index .
-.It Pa mandoc.index
-A
-.Xr recno 3
-database of indexed file-names.
+A database of manpages relative to the directory of the file.
+This file is portable across architectures and systems, so long as the
+manpage hierarchy it indexes does not change.
+.It Pa mandoc.db~
+A temporary database used during scanning and parsing.

 .El
 .Sh EXIT STATUS
 .El
 .Sh EXIT STATUS

-The
-.Nm
-utility exits with one of the following values:
-.Pp
-.Bl -tag -width Ds -compact
-.It 0
-No errors occurred.
-.It 5
-Invalid command line arguments were specified.
-No input files have been read.
-.It 6
-An operating system error occurred, for example memory exhaustion or an
-error accessing input files.
-Such errors cause
-.Nm
-to exit at once, possibly in the middle of parsing or formatting a file.
-The output databases are corrupt and should be removed .
-.El
+.Ex -std

 .Sh SEE ALSO
 .Sh SEE ALSO

+.Xr apropos 1 ,

 .Xr man 1 ,
 .Xr man 1 ,

-.Xr mandoc 1 ,
-.Xr btree 3 ,
-.Xr recno 3
-.Sh AUTHORS
+.Xr whatis 1 ,
+.Xr man.conf 5
+.Sh HISTORY
+A
+.Nm makewhatis
+utility first appeared in
+.Bx 2 .
+It was rewritten in
+.Xr perl 1
+for
+.Ox 2.7
+and in C for
+.Ox 5.1 .
+.Pp

 The
 The

+.Ar dir
+argument first appeared in
+.Nx 1.0 ;
+the options
+.Fl dtu
+in
+.Ox 2.7 ;
+and the options
+.Fl aCvW
+in
+.Ox 5.1 .
+.Sh AUTHORS
+.An -nosplit
+.An Bill Joy
+wrote the original
+.Bx
+.Nm makewhatis
+in February 1979,
+.An Marc Espie
+started the Perl version in 2000,
+and the current version of

 .Nm
 .Nm

-utility was written by
-.An Kristaps Dzonsons ,
-.Mt kristaps@bsd.lv .
+was written by
+.An Kristaps Dzonsons Aq Mt kristaps@bsd.lv
+and
+.An Ingo Schwarze Aq Mt schwarze@openbsd.org .