Exclude working directory from library path (CVE-2016-1238)

[git.ikiwiki.info.git] / doc / usage.mdwn

diff --git a/doc/usage.mdwn b/doc/usage.mdwn
index f36886d7532a9975bf5eead107d899b9dadf6664..4bfe2312c9263f5c32a94de70a6e5d83270483bc 100644 (file)
--- a/doc/usage.mdwn
+++ b/doc/usage.mdwn
@@ -6,121 +6,396 @@ ikiwiki - a wiki compiler
 
 ikiwiki [options] source destination
 
 
 ikiwiki [options] source destination
 

-ikiwiki --setup configfile
+ikiwiki --setup setupfile [options]

 
 # DESCRIPTION
 
 
 # DESCRIPTION
 

-`ikiwiki` is a wiki compiler. It builds static html pages for a wiki, from
-`source` in the [[MarkDown]] language, and writes it out to `destination`.
+`ikiwiki` is a wiki compiler. It builds static HTML pages for a wiki, from
+`source` in the [[ikiwiki/Markdown]] language (or others), and writes it out to
+`destination`.

 
 

-# OPTIONS
+Note that most options can be shortened to single letters, boolean
+flags such as --verbose can be negated with --no-verbose, and
+options such as --verbose can also be spelled like -verbose.

 
 

-Note that most options can be shortened to single letters, and boolean
-flags such as --verbose can be negated with --no-verbose.
+# MODE OPTIONS

 
 

-* --wikiname
+These options control the mode that ikiwiki operates in.

 
 

-  The name of the wiki, default is "wiki".
-
-* --verbose
+* --refresh

 
 

-  Be vebose about what it's doing.
+  Refresh the wiki, updating any changed pages. This is the default
+  behavior if no other mode action is specified (but note that --setup is
+  a mode action, and has different default behavior).

 
 * --rebuild
 
   Force a rebuild of all pages.
 
 
 * --rebuild
 
   Force a rebuild of all pages.
 

-* --templatedir
+* --setup setupfile
+
+  Load options from the given setup file. If no other mode action is specified,
+  generate wrappers and rebuild the wiki, as if --rebuild --wrappers were used.
+  If you only want to build any changed pages, you can use --refresh with
+  --setup.
+
+* --changesetup setupfile
+
+  Reads the setup file, adds any configuration changes specified by other
+  options, and writes the new configuration back to the setup file. Also
+  updates any configured wrappers. In this mode, the wiki is not fully
+  rebuilt, unless you also add --rebuild.
+
+  Example, to enable some plugins:
+
+       ikiwiki --changesetup ~/ikiwiki.setup --plugin goodstuff --plugin calendar

 
 

-  Specify the directory that the page [[templates]] are stored in.
-  Default is `/usr/share/ikiwiki/templates`.
+* --dumpsetup setupfile
+
+  Causes ikiwiki to write to the specified setup file, dumping out
+  its current configuration.
+
+* --wrappers
+
+  If used with --setup --refresh, this makes it also update any configured
+  wrappers.
+
+* --clean
+
+  This makes ikiwiki clean up by removing any files it generated in the
+  `destination` directory, as well as any configured wrappers, and the
+  `.ikiwiki` state directory. This is mostly useful if you're running
+  ikiwiki in a Makefile to build documentation and want a corresponding
+  `clean` target.
+
+* --cgi
+
+  Enable [[CGI]] mode. In cgi mode ikiwiki runs as a cgi script, and
+  supports editing pages, signing in, and registration.
+
+  To use ikiwiki as a [[CGI]] program you need to use --wrapper or --setup
+  to generate a wrapper. The wrapper will generally need to run suid 6755 to
+  the user who owns the `source` and `destination` directories.

 
 * --wrapper [file]
 
 
 * --wrapper [file]
 

-  Generate a [[wrapper]] binary that is hardcoded to do action specified by
+  Generate a wrapper binary that is hardcoded to do action specified by

   the other options, using the specified input files and `destination`
   directory. The filename to use for the wrapper is optional.
 
   The wrapper is designed to be safely made suid and be run by untrusted
   the other options, using the specified input files and `destination`
   directory. The filename to use for the wrapper is optional.
 
   The wrapper is designed to be safely made suid and be run by untrusted

-  users, as a [[Subversion]] [[post-commit]] hook, or as a [[CGI]].
+  users, as a [[post-commit]] hook, or as a [[CGI]].

 
   Note that the generated wrapper will ignore all command line parameters.
 
 
   Note that the generated wrapper will ignore all command line parameters.
 

+* --aggregate
+
+  If the [[plugins/aggregate]] plugin is enabled, this makes ikiwiki poll
+  configured feeds and save new posts to the srcdir.
+
+  Note that to rebuild previously aggregated posts, use the --rebuild option
+  along with this one. --rebuild will also force feeds to be polled even if
+  they were polled recently.
+
+* --render file
+
+  Renders a single file, outputting the resulting html. Does not save state,
+  so this cannot be used for building whole wikis, but it is useful for
+  previewing an edited file at the command line. Generally used in conjunction
+  with --setup to load in a wiki's setup:
+
+       ikiwiki --setup ~/ikiwiki.setup --render foo.mdwn
+
+* --post-commit
+
+  Run in post-commit mode, the same as if called by a [[post-commit]] hook.
+  This is probably only useful when using ikiwiki with a web server on one host
+  and a repository on another, to allow the repository's real post-commit
+  hook to ssh to the web server host and manually run ikiwiki to update
+  the web site.
+
+* --version
+
+  Print ikiwiki's version number.
+
+# CONFIG OPTIONS
+
+These options configure the wiki. Note that [[plugins]] can add additional
+configuration options of their own. All of these options and more besides can
+also be configured using a setup file.
+
+* --wikiname name
+
+  The name of the wiki, default is "wiki".
+
+* --templatedir dir
+
+  Specify the directory that [[templates|templates]] are stored in.
+  Default is `/usr/share/ikiwiki/templates`, or another location as configured at
+  build time. If the templatedir is changed, missing templates will still
+  be searched for in the default location as a fallback. Templates can also be
+  placed in the "templates/" subdirectory of the srcdir.
+
+  Note that if you choose to copy and modify ikiwiki's templates, you will need
+  to be careful to keep them up to date when upgrading to new versions of
+  ikiwiki. Old versions of templates do not always work with new ikiwiki
+  versions.
+
+* --underlaydir dir
+
+  Specify the directory that is used to underlay the source directory.
+  Source files will be taken from here unless overridden by a file in the
+  source directory. Default is `/usr/share/ikiwiki/basewiki` or another
+  location as configured at build time.
+

 * --wrappermode mode
 
   Specify a mode to chmod the wrapper to after creating it.
 
 * --wrappermode mode
 
   Specify a mode to chmod the wrapper to after creating it.
 

-* --svn, --nosvn
+* --wrappergroup group
+
+  Specify what unix group the wrapper should be owned by. This can be
+  useful if the wrapper needs to be owned by a group other than the default.
+  For example, if a project has a repository with multiple committers with
+  access controlled by a group, it makes sense for the ikiwiki wrappers
+  to run setgid to that group.
+
+* --rcs=svn|git|.., --no-rcs

 
 

-  Enable or disable use of [[subversion]]. If subversion is enabled, the `source` directory is assumed to be a working copy, and is automatically updated before building the wiki. 
+  Enable or disable use of a [[revision_control_system|rcs]].

 
 

-  In [[CGI]] mode, with subversion enabled pages edited via the web will be committed to subversion. Also, the [[RecentChanges]] link will be placed on pages.
+  The `source` directory will be assumed to be a working copy, or clone, or
+  whatever the revision control system you select uses.

 
 

-  Subversion is enabled by default.
+  In [[CGI]] mode, with a revision control system enabled, pages edited via
+  the web will be committed.

 
 

-* --anonok, --noanonok
+  No revision control is enabled by default.

 
 

-  If anonok is set, it will allow anonymous web users, who have not signed in, to make changes to the wiki.
+* --svnrepo /svn/wiki

 
 

-  By default, anonymous users cannot edit the wiki.
+  Specify the location of the svn repository for the wiki.
+
+* --svnpath trunk
+
+  Specify the path inside your svn repository where the wiki is located.
+  This defaults to `trunk`; change it if your wiki is at some other path
+  inside the repository. If your wiki is rooted at the top of the repository,
+  set svnpath to "".

 
 * --rss, --norss
 
 
 * --rss, --norss
 

-  If rss is set, ikiwiki will generate rss feeds for pages that inline
-  a blog.
+  If rss is set, ikiwiki will default to generating RSS feeds for pages
+  that inline a [[blog]].

 
 

-* --cgi
+* --allowrss
+
+  If allowrss is set, and rss is not set, ikiwiki will not default to
+  generating RSS feeds, but setting `rss=yes` in the inline directive can
+  override this default and generate a feed.
+
+* --atom, --noatom
+
+  If atom is set, ikiwiki will default to generating Atom feeds for pages
+  that inline a [[blog]].

 
 

-  Enable [[CGI]] mode. In cgi mode ikiwiki runs as a cgi script, and supports editing pages, signing in, registration, and displaying [[RecentChanges]].
+* --allowatom

 
 

-  To use ikiwiki as a [[CGI]] program you need to use --wrapper to generate a wrapper. The wrapper will generally need to run suid 6755 to the user who owns the `source` and `destination` directories.
+  If allowatom is set, and rss is not set, ikiwiki will not default to
+  generating Atom feeds, but setting `atom=yes` in the inline directive can
+  override this default and generate a feed.

 
 

-* --url http://someurl/
+* --pingurl URL

 
 

-  Specifies the url to the wiki. This is a required parameter in [[CGI]] mode.
+  Set this to the URL of an XML-RPC service to ping when an RSS feed is
+  updated. For example, to ping Technorati, use the URL
+  http://rpc.technorati.com/rpc/ping

 
 

-* --cgiurl http://someurl/ikiwiki.cgi
+  This parameter can be specified multiple times to specify more than one
+  URL to ping.

 
 

-  Specifies the url to the ikiwiki [[CGI]] script [[wrapper]]. Required when building the wiki for links to the cgi script to be generated.
+* --url URL

 
 

-* --historyurl http://svn.someurl/trunk/\[[file]]?root=wiki
+  Specifies the URL to the wiki. This is a required parameter in [[CGI]] mode.

 
 

-  Specifies the url to link to for page history browsing. In the url,
+* --cgiurl http://example.org/ikiwiki.cgi
+
+  Specifies the URL to the ikiwiki [[CGI]] script wrapper. Required when
+  building the wiki for links to the cgi script to be generated.
+
+* --historyurl URL
+
+  Specifies the URL to link to for page history browsing. In the URL,

   "\[[file]]" is replaced with the file to browse. It's common to use
   "\[[file]]" is replaced with the file to browse. It's common to use

-  [[ViewCVS]] for this.
+  [[ViewVC]] for this.

 
 

-* --diffurl http://svn.someurl/trunk/\[[file]]?root=wiki&r1=\[[r1]]&r2=\[[r2]]
+* --adminemail you@example.org

 
 

-  Specifies the url to link to for a diff of changes to a page. In the url,
+  Specifies the email address that ikiwiki should use for sending email.
+
+* --diffurl URL
+
+  Specifies the URL to link to for a diff of changes to a page. In the URL,

   "\[[file]]" is replaced with the file to browse, "\[[r1]]" is the old
   revision of the page, and "\[[r2]]" is the new revision. It's common to use
   "\[[file]]" is replaced with the file to browse, "\[[r1]]" is the old
   revision of the page, and "\[[r2]]" is the new revision. It's common to use

-  [[ViewCVS]] for this.
+  [[ViewVC]] for this.

 
 * --exclude regexp
 
   Specifies a rexexp of source files to exclude from processing.
   May be specified multiple times to add to exclude list.
 
 
 * --exclude regexp
 
   Specifies a rexexp of source files to exclude from processing.
   May be specified multiple times to add to exclude list.
 

+* --include regexp
+
+  Specifies a rexexp of source files, that would normally be excluded,
+  but that you wish to include in processing.
+  May be specified multiple times to add to include list.
+

 * --adminuser name
 
 * --adminuser name
 

-  Specifies a username of a user who has the powers of a wiki admin.
-  Currently allows locking of any page, other powers may be added later.
-  May be specified multiple times for multiple admins.
+  Specifies a username of a user (or, if openid is enabled, an openid) 
+  who has the powers of a wiki admin. Currently allows locking of any page,
+  and [[banning|banned_users]] users, as well as powers granted by
+  enabled plugins (such as [[moderating comments|plugins/moderatedcomments]] 
+  and [[plugins/websetup]]. May be specified multiple times for multiple
+  admins.
+
+  For an openid user specify the full URL of the login, including "http://".
+
+* --plugin name
+
+  Enables the use of the specified [[plugin|plugins]] in the wiki. 
+  Note that plugin names are case sensitive.
+
+* --disable-plugin name
+
+  Disables use of a plugin. For example "--disable-plugin htmlscrubber"
+  to do away with HTML sanitization.
+
+* --libdir directory
+
+  Makes ikiwiki look in the specified directory first, before the regular
+  locations when loading library files and plugins. For example, if you set
+  libdir to "/home/you/.ikiwiki/", you can install a foo.pm plugin as
+  "/home/you/.ikiwiki/IkiWiki/Plugin/foo.pm".
+
+* --discussion, --no-discussion
+
+  Enables or disables "Discussion" links from being added to the header of
+  every page. The links are enabled by default.
+
+* --numbacklinks n
+
+  Controls how many backlinks should be displayed at the bottom of a page.
+  Excess backlinks will be hidden in a popup. Default is 10. Set to 0 to
+  disable this feature.
+
+* --userdir subdir
+
+  Optionally, allows links to users of the wiki to link to pages inside a
+  subdirectory of the wiki. The default is to link to pages in the toplevel
+  directory of the wiki.
+
+* --htmlext html
+
+  Configures the extension used for generated html files. Default is "html".
+
+* --timeformat format
+
+  Specify how to display the time or date. The format string is passed to the
+  strftime(3) function.
+
+* --verbose, --no-verbose
+
+  Be verbose about what is being done.
+
+* --syslog, --no-syslog
+
+  Log to syslog(3).
+
+* --usedirs, --no-usedirs
+
+  Toggle creating output files named page/index.html (default) instead of page.html.
+
+* --prefix-directives, --no-prefix-directives

 
 

-* --setup configfile
+  Toggle new '!'-prefixed syntax for preprocessor directives.  ikiwiki currently
+  defaults to --prefix-directives.

 
 

-  In setup mode, ikiwiki reads the config file, which is really a perl
-  program that can call ikiwiki internal functions. Uses of this are
-  various; the normal one is to automatically generate wrappers for a
-  wiki based on data in a config file.
+* --w3mmode, --no-w3mmode
+
+  Enable [[w3mmode]], which allows w3m to use ikiwiki as a local CGI script,
+  without a web server.
+
+* --sslcookie
+
+  Only send cookies over an SSL connection. This should prevent them being
+  intercepted. If you enable this option then you must run at least the 
+  CGI portion of ikiwiki over SSL.
+
+* --gettime, --no-gettime
+
+  Extract creation and modification times for each new page from the
+  the revision control's log. This is done automatically when building a
+  wiki for the first time, so you normally do not need to use this option.
+
+* --set var=value

   
   

-  Note that the wiki will be (re)built as part of the setup process to
-  ensure that any changes take effect.
+  This allows setting an arbitrary configuration variable, the same as if it
+  were set via a setup file. Since most commonly used options can be
+  configured using command-line switches, you will rarely need to use this.
+
+* --set-yaml var=value
+
+  This is like --set, but it allows setting configuration variables that
+  use complex data structures, by passing in a YAML document.
+
+# EXAMPLES
+
+* ikiwiki --setup my.setup
+
+  Completely (re)build the wiki using the specified setup file.
+
+* ikiwiki --setup my.setup --refresh
+
+  Refresh the wiki, using settings from my.setup, and avoid
+  rebuilding any pages that have not changed. This is faster.
+
+* ikiwiki --setup my.setup --refresh --wrappers
+
+  Refresh the wiki, including regenerating all wrapper programs,
+  but do not rebuild all pages. Useful if you have changed something
+  in the setup file that does not need a full wiki rebuild to update
+  all pages, but that you want to immediately take effect.
+
+* ikiwiki --rebuild srcdir destdir
+
+  Use srcdir as source and build HTML in destdir, without using a
+  setup file.
+
+* ikiwiki srcdir destdir
+
+  Use srcdir as source to update changed pages' HTML in destdir,
+  without using a setup file.
+
+# ENVIRONMENT
+
+* CC
+
+  This controls what C compiler is used to build wrappers. Default is 'cc'.
+
+* CFLAGS
+
+  This can be used to pass options to the C compiler when building wrappers.
+
+# SEE ALSO

 
 

-  [[ikiwiki.setup]] is an example of such a config file.
+* [[ikiwiki-mass-rebuild]](8)
+* [[ikiwiki-update-wikilist]](1)
+* [[ikiwiki-transition]](1)

 
 # AUTHOR
 
 
 # AUTHOR
 

-Joey Hess <joey@kitenet.net>
+Joey Hess <joey@ikiwiki.info>

 
 

-Warning: this page is automatically made into ikiwiki's man page, edit with care
+Warning: Automatically converted into a man page by mdwn2man. Edit with care