The Trac Configuration File
[Note To Editors] Please discuss documentation changes in the #Discussion section. Even better, send us documentation patches? against the code (i.e. where the configuration entries are documented), either on Trac-dev or on new tickets.
Table of Contents
Trac configuration is done by editing the trac.ini config file, located in <projectenv>/conf/trac.ini. Changes to the configuration are usually reflected immediately, though changes to the [components] or [logging] sections will require restarting the web server. You may also need to restart the web server after creating a global configuration file when none was previously present.
The trac.ini configuration file and its parent directory should be writable by the web server, as Trac currently relies on the possibility to trigger a complete environment reload to flush its caches.
Global Configuration
In versions prior to 0.11, the global configuration was by default located in $prefix/share/trac/conf/trac.ini or /etc/trac/trac.ini, depending on the distribution. If you're upgrading, you may want to specify that file to inherit from. Literally, when you're upgrading to 0.11, you have to add an [inherit] section to your project's trac.ini file. Additionally, you have to move your customized templates and common images from $prefix/share/trac/... to the new location.
Global options will be merged with the environment-specific options, where local options override global options. The options file is specified as follows:
[inherit] file = /path/to/global/trac.ini
Multiple files can be specified using a comma-separated list.
Note that you can also specify a global option file when creating a new project, by adding the option --inherit=/path/to/global/trac.ini to trac-admin's initenv command. If you do not do this but nevertheless intend to use a global option file with your new environment, you will have to go through the newly generated conf/trac.ini file and delete the entries that will otherwise override those set in the global file.
There are two more entries in the [inherit] section, templates_dir for sharing global templates and plugins_dir, for sharing plugins. Those entries can themselves be specified in the shared configuration file, and in fact, configuration files can even be chained if you specify another [inherit] file there.
Note that the templates found in the templates/ directory of the TracEnvironment have precedence over those found in [inherit] templates_dir. In turn, the latter have precedence over the installed templates, so be careful about what you put there, notably if you override a default template be sure to refresh your modifications when you upgrade to a new version of Trac (the preferred way to perform TracInterfaceCustomization being still to write a custom plugin doing an appropriate ITemplateStreamFilter transformation).
Reference for settings
This is a brief reference of available configuration options, and their default settings.
[account-manager]
| account_changes_notify_addresses | List of email addresses that get notified of user changes, ie, new user, password change and delete user. | (no default) |
| allow_delete_account | Allow users to delete their own account. | true |
| auth_init | Launch an initial Trac authentication setup. | true |
| authentication_url | URL of the HTTP authentication service | (no default) |
| cookie_refresh_pct | Persistent sessions randomly get a new session cookie ID with likelihood in percent per work hour given here (zero equals to never) to decrease vulnerability of long-lasting sessions. | 10 |
| db_htdigest_realm | Realm to select relevant htdigest db entries | (no default) |
| db_htpasswd_hash_type | Default hash type of new/updated passwords | crypt |
| email_regexp | A validation regular expression describing new account emails. | (?i)^[A-Z0-9._%+-]+@(?:[A-Z0-9-]+\.)+[A-Z]{2,6}$ |
| environ_auth_overwrite | Whether environment variable REMOTE_USER should get overwritten after processing login form input. Otherwise it will only be set, if unset at the time of authentication. | true |
| force_passwd_change | Force the user to change password when it's reset. | true |
| generated_password_length | Length of the randomly-generated passwords created when resetting the password for an account. | 8 |
| hash_method | IPasswordHashMethod used to create new/updated passwords | HtDigestHashMethod |
| htdigest_file | Path relative to Trac environment or full host machine path to password file | (no default) |
| htdigest_realm | Realm to select relevant htdigest file entries | (no default) |
| htpasswd_file | Path relative to Trac environment or full host machine path to password file | (no default) |
| htpasswd_hash_type | Default hash type of new/updated passwords | crypt |
| login_opt_list | Set to True, to switch login page style showing alternative actions in a single listing together. | false |
| notify_actions | Comma separated list of actions to notify of. Available actions 'new', 'change', 'delete'. | (no default) |
| password_file | Path to the users file; leave blank to locate the users file by reading svnserve.conf | (no default) |
| password_store | Ordered list of password stores, queried in turn. | (no default) |
| persistent_sessions | Allow the user to be remembered across sessions without needing to re-authenticate. This is, user checks a "Remember Me" checkbox and, next time he visits the site, he'll be remembered. | false |
| refresh_passwd | Re-set passwords on successful authentication. This is most useful to move users to a new password store or enforce new store configuration (i.e. changed hash type), but should be disabled/unset otherwise. | false |
| register_basic_token | A string required as input to pass verification. | (no default) |
| register_check | Ordered list of IAccountRegistrationInspector's to use for registration checks. | BasicCheck, EmailCheck, BotTrapCheck, RegExpCheck,
UsernamePermCheck |
| reset_password | Set to False, if there is no email system setup. | true |
| username_char_blacklist | Always exclude some special characters from usernames. This is enforced upon new user registration. | :[] |
| username_regexp | A validation regular expression describing new usernames. | (?i)^[A-Z0-9.\-_]{5,}$ |
| verify_email | Verify the email address of Trac users. | true |
[attachment]
| max_size | Maximum allowed file size (in bytes) for ticket and wiki attachments. | 262144 |
| max_zip_size | Maximum allowed total size (in bytes) for an attachment list to be downloadable as a .zip. Set this to -1 to disable download as .zip. (since 1.0) | 2097152 |
| render_unsafe_content | Whether attachments should be rendered in the browser, or only made downloadable. Pretty much any file may be interpreted as HTML by the browser, which allows a malicious user to attach a file containing cross-site scripting attacks. For public sites where anonymous users can create attachments it is recommended to leave this option disabled (which is the default). | false |
[browser]
| color_scale | Enable colorization of the age column. This uses the same color scale as the source code annotation: blue is older, red is newer. (since 0.11) | true |
| downloadable_paths | List of repository paths that can be downloaded. Leave the option empty if you want to disable all downloads, otherwise set it to a comma-separated list of authorized paths (those paths are glob patterns, i.e. "*" can be used as a wild card) (since 0.10) | /trunk, /branches/*, /tags/* |
| hide_properties | Comma-separated list of version control properties to hide from the repository browser. (since 0.9) | svk:merge |
| intermediate_color | (r,g,b) color triple to use for the color corresponding to the intermediate color, if two linear interpolations are used for the color scale (see intermediate_point). If not set, the intermediate color between oldest_color and newest_color will be used. (since 0.11) | (no default) |
| intermediate_point | If set to a value between 0 and 1 (exclusive), this will be the point chosen to set the intermediate_color for interpolating the color value. (since 0.11) | (no default) |
| newest_color | (r,g,b) color triple to use for the color corresponding to the newest color, for the color scale used in blame or the browser age column if color_scale is enabled. (since 0.11) | (255, 136, 136) |
| oldest_color | (r,g,b) color triple to use for the color corresponding to the oldest color, for the color scale used in blame or the browser age column if color_scale is enabled. (since 0.11) | (136, 136, 255) |
| oneliner_properties | Comma-separated list of version control properties to render as oneliner wiki content in the repository browser. (since 0.11) | trac:summary |
| render_unsafe_content | Whether raw files should be rendered in the browser, or only made downloadable. Pretty much any file may be interpreted as HTML by the browser, which allows a malicious user to create a file containing cross-site scripting attacks. For open repositories where anyone can check-in a file, it is recommended to leave this option disabled (which is the default). | false |
| wiki_properties | Comma-separated list of version control properties to render as wiki content in the repository browser. (since 0.11) | trac:description |
[components]
T h i s s e c t i o n i s u s e d t o e n a b l e o r d i s a b l e c o m p o n e n t s p r o v i d e d b y p l u g i n s , a s w e l l a s b y T r a c i t s e l f . T h e c o m p o n e n t t o e n a b l e / d i s a b l e i s s p e c i f i e d v i a t h e n a m e o f t h e o p t i o n . W h e t h e r i t s e n a b l e d i s d e t e r m i n e d b y t h e o p t i o n v a l u e ; s e t t i n g t h e v a l u e t o ` e n a b l e d ` o r ` o n ` w i l l e n a b l e t h e c o m p o n e n t , a n y o t h e r v a l u e ( t y p i c a l l y ` d i s a b l e d ` o r ` o f f ` ) w i l l d i s a b l e t h e c o m p o n e n t . T h e o p t i o n n a m e i s e i t h e r t h e f u l l y q u a l i f i e d n a m e o f t h e c o m p o n e n t s o r t h e m o d u l e / p a c k a g e p r e f i x o f t h e c o m p o n e n t . T h e f o r m e r e n a b l e s / d i s a b l e s a s p e c i f i c c o m p o n e n t , w h i l e t h e l a t t e r e n a b l e s / d i s a b l e s a n y c o m p o n e n t i n t h e s p e c i f i e d p a c k a g e / m o d u l e . C o n s i d e r t h e f o l l o w i n g c o n f i g u r a t i o n s n i p p e t : { { { [ c o m p o n e n t s ] t r a c . t i c k e t . r e p o r t . R e p o r t M o d u l e = d i s a b l e d w e b a d m i n . * = e n a b l e d } } } T h e f i r s t o p t i o n t e l l s T r a c t o d i s a b l e t h e [ w i k i : T r a c R e p o r t s r e p o r t m o d u l e ] . T h e s e c o n d o p t i o n i n s t r u c t s T r a c t o e n a b l e a l l c o m p o n e n t s i n t h e ` w e b a d m i n ` p a c k a g e . N o t e t h a t t h e t r a i l i n g w i l d c a r d i s r e q u i r e d f o r m o d u l e / p a c k a g e m a t c h i n g . T o v i e w t h e l i s t o f a c t i v e c o m p o n e n t s , g o t o t h e ' ' P l u g i n s ' ' p a g e o n ' ' A b o u t T r a c ' ' ( r e q u i r e s ` C O N F I G _ V I E W ` [ w i k i : T r a c P e r m i s s i o n s p e r m i s s i o n s ] ) . S e e a l s o : T r a c P l u g i n s
[header_logo]
| alt | Alternative text for the header logo. | (please configure the [header_logo] section in trac.ini) |
| height | Height of the header logo image in pixels. | -1 |
| link | URL to link to, from the header logo. | (no default) |
| src | URL of the image to use as header logo. It can be absolute, server relative or relative. If relative, it is relative to one of the /chrome locations: site/your-logo.png if your-logo.png is located in the htdocs folder within your TracEnvironment; common/your-logo.png if your-logo.png is located in the folder mapped to the htdocs_location URL. Only specifying your-logo.png is equivalent to the latter. | site/your_project_logo.png |
| width | Width of the header logo image in pixels. | -1 |
[hg]
| encoding | Encoding that should be used to decode filenames, file content, and changeset metadata. If multiple encodings are used for these different situations (or even multiple encodings were used for filenames), simply specify a list of encodings which will be tried in turn (since 0.12.0.24). | utf-8 |
| hgrc | Optional path to an hgrc file which will be used to specify extra Mercurial configuration options (see http://www.selenic.com/mercurial/hgrc.5.html). | (no default) |
| node_format | Specify how the commit SHA1 hashes should be displayed. Possible choices are: 'short', the SHA1 hash is abbreviated to its first 12 digits, or 'hex', the hash is shown in full. | short |
| show_rev | Show decimal revision in front of the commit SHA1 hash. While this number is specific to the particular clone used to browse the repository, this can sometimes give an useful hint about the relative "age" of a revision. | true |
[inherit]
| htdocs_dir | Path to the shared htdocs directory. Static resources in that directory are mapped to /chrome/shared under the environment URL, in addition to common and site locations. This can be useful in site.html for common interface customization of multiple Trac environments. (since 1.0) | (no default) |
| plugins_dir | Path to the shared plugins directory. Plugins in that directory are loaded in addition to those in the directory of the environment plugins, with this one taking precedence. (since 0.11) | (no default) |
| templates_dir | Path to the shared templates directory. Templates in that directory are loaded in addition to those in the environments templates directory, but the latter take precedence. (since 0.11) | (no default) |
[intertrac]
T h i s s e c t i o n c o n f i g u r e s I n t e r T r a c p r e f i x e s . O p t i o n s i n t h i s s e c t i o n w h o s e n a m e c o n t a i n a " . " d e f i n e a s p e c t s o f t h e I n t e r T r a c p r e f i x c o r r e s p o n d i n g t o t h e o p t i o n n a m e u p t o t h e " . " . O p t i o n s w h o s e n a m e d o n ' t c o n t a i n a " . " d e f i n e a n a l i a s . T h e ` . u r l ` i s m a n d a t o r y a n d i s u s e d f o r l o c a t i n g t h e o t h e r T r a c . T h i s c a n b e a r e l a t i v e U R L i n c a s e t h a t T r a c e n v i r o n m e n t i s l o c a t e d o n t h e s a m e s e r v e r . T h e ` . t i t l e ` i n f o r m a t i o n i s u s e d f o r p r o v i d i n g a u s e f u l t o o l t i p w h e n m o v i n g t h e c u r s o r o v e r a n I n t e r T r a c l i n k . T h e ` . c o m p a t ` o p t i o n c a n b e u s e d t o a c t i v a t e o r d i s a b l e a ' ' c o m p a t i b i l i t y ' ' m o d e : * I f t h e t a r g e t e d T r a c i s r u n n i n g a v e r s i o n b e l o w [ t r a c : m i l e s t o n e : 0 . 1 0 0 . 1 0 ] ( [ t r a c : r 3 5 2 6 r 3 5 2 6 ] t o b e p r e c i s e ) , t h e n i t d o e s n ' t k n o w h o w t o d i s p a t c h a n I n t e r T r a c l i n k , a n d i t ' s u p t o t h e l o c a l T r a c t o p r e p a r e t h e c o r r e c t l i n k . N o t a l l l i n k s w i l l w o r k t h a t w a y , b u t t h e m o s t c o m m o n d o . T h i s i s c a l l e d t h e c o m p a t i b i l i t y m o d e , a n d i s ` t r u e ` b y d e f a u l t . * I f y o u k n o w t h a t t h e r e m o t e T r a c k n o w s h o w t o d i s p a t c h I n t e r T r a c l i n k s , y o u c a n e x p l i c i t l y d i s a b l e t h i s c o m p a t i b i l i t y m o d e a n d t h e n ' ' a n y ' ' T r a c L i n k s c a n b e c o m e I n t e r T r a c l i n k s . E x a m p l e c o n f i g u r a t i o n : { { { [ i n t e r t r a c ] # - - E x a m p l e o f s e t t i n g u p a n a l i a s : t = t r a c # - - L i n k t o a n e x t e r n a l T r a c : t r a c . t i t l e = E d g e w a l l ' s T r a c f o r T r a c t r a c . u r l = h t t p : / / t r a c . e d g e w a l l . o r g } } }
[interwiki]
E v e r y o p t i o n i n t h e ` [ i n t e r w i k i ] ` s e c t i o n d e f i n e s o n e I n t e r W i k i p r e f i x . T h e o p t i o n n a m e d e f i n e s t h e p r e f i x . T h e o p t i o n v a l u e d e f i n e s t h e U R L , o p t i o n a l l y f o l l o w e d b y a d e s c r i p t i o n s e p a r a t e d f r o m t h e U R L b y w h i t e s p a c e . P a r a m e t r i c U R L s a r e s u p p o r t e d a s w e l l . ' ' ' E x a m p l e : ' ' ' { { { [ i n t e r w i k i ] M e a t B a l l = h t t p : / / w w w . u s e m o d . c o m / c g i - b i n / m b . p l ? P E P = h t t p : / / w w w . p y t h o n . o r g / p e p s / p e p - $ 1 . h t m l P y t h o n E n h a n c e m e n t P r o p o s a l $ 1 t s v n = t s v n : I n t e r a c t w i t h T o r t o i s e S v n } } }
[logging]
| log_file | If log_type is file, this should be a path to the log-file. Relative paths are resolved relative to the log directory of the environment. | trac.log |
| log_format | Custom logging format. If nothing is set, the following will be used: Trac[$(module)s] $(levelname)s: $(message)s In addition to regular key names supported by the Python logger library (see http://docs.python.org/library/logging.html), one could use: - $(path)s the path for the current environment - $(basename)s the last path component of the current environment - $(project)s the project name Note the usage of $(...)s instead of %(...)s as the latter form would be interpreted by the ConfigParser? itself. Example: ($(thread)d) Trac[$(basename)s:$(module)s] $(levelname)s: $(message)s (since 0.10.5) | (no default) |
| log_level | Level of verbosity in log. Should be one of (CRITICAL, ERROR, WARN, INFO, DEBUG). | DEBUG |
| log_type | Logging facility to use. Should be one of (none, file, stderr, syslog, winlog). | none |
[mimeviewer]
| max_preview_size | Maximum file size for HTML preview. (since 0.9) | 262144 |
| mime_map | List of additional MIME types and keyword mappings. Mappings are comma-separated, and for each MIME type, there's a colon (":") separated list of associated keywords or file extensions. (since 0.10) | text/x-dylan:dylan, text/x-idl:ice, text/x-ada:ads:adb |
| mime_map_patterns | List of additional MIME types associated to filename patterns. Mappings are comma-separated, and each mapping consists of a MIME type and a Python regexp used for matching filenames, separated by a colon (":"). (since 1.0) | text/plain:README|INSTALL|COPYING.* |
| tab_width | Displayed tab width in file preview. (since 0.9) | 8 |
| treat_as_binary | Comma-separated list of MIME types that should be treated as binary data. (since 0.11.5) | application/octet-stream, application/pdf, application/postscript, application/msword,application/rtf, |
[notification]
| admit_domains | Comma-separated list of domains that should be considered as valid for email addresses (such as localdomain). | (no default) |
| email_sender | Name of the component implementing IEmailSender. This component is used by the notification system to send emails. Trac currently provides SmtpEmailSender for connecting to an SMTP server, and SendmailEmailSender for running a sendmail-compatible executable. (since 0.12) | SmtpEmailSender |
| ignore_domains | Comma-separated list of domains that should not be considered part of email addresses (for usernames with Kerberos domains). | (no default) |
| mime_encoding | Specifies the MIME encoding scheme for emails. Valid options are 'base64' for Base64 encoding, 'qp' for Quoted-Printable, and 'none' for no encoding, in which case mails will be sent as 7bit if the content is all ASCII, or 8bit otherwise. (since 0.10) | none |
| sendmail_path | Path to the sendmail executable. The sendmail program must accept the -i and -f options. (since 0.12) | sendmail |
| smtp_always_bcc | Email address(es) to always send notifications to, addresses do not appear publicly (Bcc:). (since 0.10) | (no default) |
| smtp_always_cc | Email address(es) to always send notifications to, addresses can be seen by all recipients (Cc:). | (no default) |
| smtp_default_domain | Default host/domain to append to address that do not specify one. | (no default) |
| smtp_enabled | Enable email notification. | false |
| smtp_from | Sender address to use in notification emails. | trac@localhost |
| smtp_from_author | Use the action author as the sender of notification emails. (since 1.0) | false |
| smtp_from_name | Sender name to use in notification emails. | (no default) |
| smtp_password | Password for SMTP server. (since 0.9) | (no default) |
| smtp_port | SMTP server port to use for email notification. | 25 |
| smtp_replyto | Reply-To address to use in notification emails. | trac@localhost |
| smtp_server | SMTP server hostname to use for email notifications. | localhost |
| smtp_subject_prefix | Text to prepend to subject line of notification emails. If the setting is not defined, then the [$project_name] prefix. If no prefix is desired, then specifying an empty option will disable it. (since 0.10.1) | __default__ |
| smtp_user | Username for SMTP server. (since 0.9) | (no default) |
| use_public_cc | Recipients can see email addresses of other CC'ed recipients. If this option is disabled (the default), recipients are put on BCC. (since 0.10) | false |
| use_short_addr | Permit email address without a host/domain (i.e. username only). The SMTP server should accept those addresses, and either append a FQDN or use local delivery. (since 0.10) | false |
| use_tls | Use SSL/TLS to send notifications over SMTP. (since 0.10) | false |
[project]
| admin | E-Mail address of the project's administrator. | (no default) |
| admin_trac_url | Base URL of a Trac instance where errors in this Trac should be reported. This can be an absolute or relative URL, or '.' to reference this Trac instance. An empty value will disable the reporting buttons. (since 0.11.3) | . |
| descr | Short description of the project. | My example project |
| footer | Page footer text (right-aligned). | Visit the Trac open source project at<br /><a href="http://trac.edgewall.org/">http://trac.edgewall.org/</a> |
| icon | URL of the icon of the project. | common/trac.ico |
| name | Name of the project. | My Project |
| url | URL of the main project web site, usually the website in which the base_url resides. This is used in notification e-mails. | (no default) |
[search]
| default_disabled_filters | Specifies which search filters should be disabled by default on the search page. This will also restrict the filters for the quick search function. The filter names defined by default components are: wiki, ticket, milestone and changeset. For plugins, look for their implementation of the ISearchSource interface, in the get_search_filters() method, the first member of returned tuple. Once disabled, search filters can still be manually enabled by the user on the search page. (since 0.12) | (no default) |
| min_query_length | Minimum length of query string allowed when performing a search. | 3 |
[spam-filter]
| account_karma | By how many points a failed registration check impacts the overall score. | 5 |
| account_replace_checks | Replace checks in account manager totally. | false |
| attachment_karma | The karma given to attachments. | 0 |
| authenticated_karma | The karma given to authenticated users, in case trust_authenticated is false. | 10 |
| botscout_api_key | API key required to use BotScout?. | (no default) |
| botscout_karma | By how many points a BotScout? reject impacts the overall karma of a submission. | 3 |
| captcha | CAPTCHA method to use for verifying humans. | ExpressionCaptcha |
| captcha_karma | By how many points a successful CAPTCHA response increases the overall score. | 10 |
| captcha_karma_lifetime | Time in seconds that a successful CAPTCHA response increases karma. | 86400 |
| captcha_lifetime | Time in seconds before database cleanup is called. | 3600 |
| captcha_recaptcha_private_key | Private key for reCaptcha usage. | (no default) |
| captcha_recaptcha_public_key | Public key for reCaptcha usage. | (no default) |
| fspamlist_api_key | API key required to use FSpamList. | (no default) |
| fspamlist_karma | By how many points a FSpamList reject impacts the overall karma of a submission. | 3 |
| ip_blacklist_karma | By how many points blacklisting by a single server impacts the overall karma of a submission. | 5 |
| ip_blacklist_servers | Servers used for IP blacklisting. | list.blogspambl.com, all.s5h.net, dnsbl.tornevall.org |
| ip_throttle_karma | By how many points exceeding the configured maximum number of posts per hour impacts the overall score. | 3 |
| is_forwarded | Interpret X-Forwarded-For header for IP checks. | false |
| logging_enabled | Whether all content submissions and spam filtering activity should be logged to the database. | true |
| max_posts_by_ip | The maximum allowed number of submissions per hour form a single IP address. If this limit is exceeded, subsequent permissions get negative karma. | 10 |
| min_karma | The minimum score required for a submission to be allowed. | 0 |
| purge_age | The number of days after which log entries should be purged. | 7 |
| reject_handler | The handler used to reject content. | FilterSystem |
| session_karma | By how many points an existing and configured session improves the overall karma of the submission. A third of the points is granted for having an existing session at all, the other two thirds are granted when the user has his name and/or email address set in the session, respectively. | 9 |
| spam_monitor_entries | How many monitor entries are displayed by default (between 5 and 1000). | 15 |
| stopforumspam_api_key | API key used to report SPAM. | (no default) |
| stopforumspam_karma | By how many points a StopForumSpam? reject impacts the overall karma of a submission. | 4 |
| train_external | Allow training of external services. | true |
| trap_karma | By how many points a trap reject impacts the overall karma of a submission. | 10 |
| trap_name | Name of the invisible trap field, should contain some reference to e-mail for better results. | sfp_email |
| trap_name_hidden | Name of the hidden trap field, should contain some reference to e-mail for better results. | sfph_mail |
| trust_authenticated | Whether content submissions by authenticated users should be trusted without checking for potential spam or other abuse. | true |
| use_external | Allow usage of external services. | true |
[ticket]
| commit_ticket_update_check_perms | Check that the committer has permission to perform the requested operations on the referenced tickets. This requires that the user names be the same for Trac and repository operations. | true |
| commit_ticket_update_commands.close | Commands that close tickets, as a space-separated list. | close closed closes fix fixed fixes |
| commit_ticket_update_commands.refs | Commands that add a reference, as a space-separated list. If set to the special value <ALL>, all tickets referenced by the message will get a reference to the changeset. | addresses re references refs see |
| commit_ticket_update_envelope | Require commands to be enclosed in an envelope. Must be empty or contain two characters. For example, if set to "[]", then commands must be in the form of [closes #4]. | (no default) |
| commit_ticket_update_notify | Send ticket change notification when updating a ticket. | true |
[timeline]
| abbreviated_messages | Whether wiki-formatted event messages should be truncated or not. This only affects the default rendering, and can be overriden by specific event providers, see their own documentation. (Since 0.11) | true |
| default_daysback | Default number of days displayed in the Timeline, in days. (since 0.9.) | 30 |
| max_daysback | Maximum number of days (-1 for unlimited) displayable in the Timeline. (since 0.11) | 90 |
[trac]
| auth_cookie_lifetime | Lifetime of the authentication cookie, in seconds. This value determines how long the browser will cache authentication information, and therefore, after how much inactivity a user will have to log in again. The default value of 0 makes the cookie expire at the end of the browsing session. (since 0.12) | 0 |
| auth_cookie_path | Path for the authentication cookie. Set this to the common base path of several Trac instances if you want them to share the cookie. (since 0.12) | (no default) |
| auto_preview_timeout | Inactivity timeout in seconds after which the automatic wiki preview triggers an update. This option can contain floating-point values. The lower the setting, the more requests will be made to the server. Set this to 0 to disable automatic preview. The default is 2.0 seconds. (since 0.12) | 2.0 |
| auto_reload | Automatically reload template files after modification. | false |
| backup_dir | Database backup location | db |
| base_url | Reference URL for the Trac deployment. This is the base URL that will be used when producing documents that will be used outside of the web browsing context, like for example when inserting URLs pointing to Trac resources in notification e-mails. | (no default) |
| check_auth_ip | Whether the IP address of the user should be checked for authentication (since 0.9). | false |
| database | Database connection string for this project | sqlite:db/trac.db |
| debug_sql | Show the SQL queries in the Trac log, at DEBUG level. (Since 0.11.5) | false |
| default_charset | Charset to be used when in doubt. | utf-8 |
| default_date_format | The date format. Valid options are 'iso8601' for selecting ISO 8601 format, or leave it empty which means the default date format will be inferred from the browser's default language. (since 1.0) | (no default) |
| default_dateinfo_format | The date information format. Valid options are 'relative' for displaying relative format and 'absolute' for displaying absolute format. (since 1.0) | relative |
| default_handler | Name of the component that handles requests to the base URL. Options include TimelineModule, RoadmapModule, BrowserModule, QueryModule, ReportModule, TicketModule and WikiModule. The default is WikiModule. (since 0.9) | WikiModule |
| default_language | The preferred language to use if no user preference has been set. (since 0.12.1) | (no default) |
| default_timezone | The default timezone to use | (no default) |
| genshi_cache_size | The maximum number of templates that the template loader will cache in memory. The default value is 128. You may want to choose a higher value if your site uses a larger number of templates, and you have enough memory to spare, or you can reduce it if you are short on memory. | 128 |
| htdocs_location | Base URL for serving the core static resources below /chrome/common/. It can be left empty, and Trac will simply serve those resources itself. Advanced users can use this together with trac-admin ... deploy <deploydir> to allow serving the static resources for Trac directly from the web server. Note however that this only applies to the <deploydir>/htdocs/common directory, the other deployed resources (i.e. those from plugins) will not be made available this way and additional rewrite rules will be needed in the web server. | (no default) |
| ignore_auth_case | Whether login names should be converted to lower case (since 0.9). | false |
| jquery_location | Location of the jQuery JavaScript library (version 1.7.2). An empty value loads jQuery from the copy bundled with Trac. Alternatively, jQuery could be loaded from a CDN, for example: http://code.jquery.com/jquery-1.7.2.min.js, http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.7.2.min.js or https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js. (since 1.0) | (no default) |
| jquery_ui_location | Location of the jQuery UI JavaScript library (version 1.8.21). An empty value loads jQuery UI from the copy bundled with Trac. Alternatively, jQuery UI could be loaded from a CDN, for example: https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.21/jquery-ui.min.js or http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.21/jquery-ui.min.js. (since 1.0) | (no default) |
| jquery_ui_theme_location | Location of the theme to be used with the jQuery UI JavaScript library (version 1.8.21). An empty value loads the custom Trac jQuery UI theme from the copy bundled with Trac. Alternatively, a jQuery UI theme could be loaded from a CDN, for example: https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.21/themes/start/jquery-ui.css or http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.21/themes/start/jquery-ui.css. (since 1.0) | (no default) |
| mainnav | Order of the items to display in the mainnav navigation bar, listed by IDs. See also TracNavigation. | wiki, timeline, roadmap, browser, tickets, newticket, search |
| metanav | Order of the items to display in the metanav navigation bar, listed by IDs. See also TracNavigation. | login, logout, prefs, help, about |
| never_obfuscate_mailto | Never obfuscate mailto: links explicitly written in the wiki, even if show_email_addresses is false or the user has not the EMAIL_VIEW permission (since 0.11.6). | false |
| permission_policies | List of components implementing IPermissionPolicy, in the order in which they will be applied. These components manage fine-grained access control to Trac resources. Defaults to the DefaultPermissionPolicy? (pre-0.11 behavior) and LegacyAttachmentPolicy? (map ATTACHMENT_* permissions to realm specific ones) | DefaultPermissionPolicy, LegacyAttachmentPolicy |
| permission_store | Name of the component implementing IPermissionStore, which is used for managing user and group permissions. | DefaultPermissionStore |
| pg_dump_path | Location of pg_dump for Postgres database backups | pg_dump |
| request_filters | Ordered list of filters to apply to all requests (since 0.10). | (no default) |
| resizable_textareas | Make <textarea> fields resizable. Requires JavaScript. (since 0.12) | true |
| secure_cookies | Restrict cookies to HTTPS connections. When true, set the secure flag on all cookies so that they are only sent to the server on HTTPS connections. Use this if your Trac instance is only accessible through HTTPS. (since 0.11.2) | false |
| show_email_addresses | Show email addresses instead of usernames. If false, we obfuscate email addresses. (since 0.11) | false |
| show_ip_addresses | Show IP addresses for resource edits (e.g. wiki). (since 0.11.3) | false |
| timeout | Timeout value for database connection, in seconds. Use '0' to specify no timeout. (Since 0.11) | 20 |
| use_base_url_for_redirect | Optionally use [trac] base_url for redirects. In some configurations, usually involving running Trac behind a HTTP proxy, Trac can't automatically reconstruct the URL that is used to access it. You may need to use this option to force Trac to use the base_url setting also for redirects. This introduces the obvious limitation that this environment will only be usable when accessible from that URL, as redirects are frequently used. (since 0.10.5) | false |
| use_xsendfile | When true, send a X-Sendfile header and no content when sending files from the filesystem, so that the web server handles the content. This requires a web server that knows how to handle such a header, like Apache with mod_xsendfile or lighttpd. (since 1.0) | false |
[wiki]
| ignore_missing_pages | Enable/disable highlighting CamelCase links to missing pages (since 0.9). | false |
| max_size | Maximum allowed wiki page size in bytes. (since 0.11.2) | 262144 |
| render_unsafe_content | Enable/disable the use of unsafe HTML tags such as <script> or <embed> with the HTML WikiProcessor (since 0.10.4). For public sites where anonymous users can edit the wiki it is recommended to leave this option disabled (which is the default). | false |
| safe_schemes | List of URI schemes considered "safe", that will be rendered as external links even if [wiki] render_unsafe_content is false. (since 0.11.8) | cvs, file, ftp, git, irc, http, https, news, sftp, smb, ssh, svn, svn+ssh |
| split_page_names | Enable/disable splitting the WikiPageNames with space characters (since 0.10). | false |
See also: TracGuide, TracAdmin, TracEnvironment
