= InterTrac Links Trac supports a convenient way to refer to resources of other Trac servers, from within the Wiki markup. An !InterTrac link can be seen as a scoped TracLinks. It is used for referring to a Trac resource located in another Trac environment. A resource can be a wiki page, changeset, ticket or milestone. == List of Active InterTrac Prefixes [[InterTrac]] == Link Syntax Simply use the name of the other Trac environment as a prefix, followed by a colon, ending with the resource located in the other environment: {{{ : }}} The other resource is specified using a regular TracLinks, of any flavor. That target environment name is either the real name of the environment or an alias for it. The aliases are defined in the `trac.ini` file, see below. The prefix is case insensitive. If the InterTrac link is enclosed in square brackets, like `[th:WikiExtrasPlugin]`, the InterTrac prefix is removed in the displayed link like a normal link resolver would be, ie the above would be displayed as `WikiExtrasPlugin`. For convenience, there is also an alternative short-hand form, where an alias can be used as an immediate prefix for the identifier of a ticket, changeset or report, eg `#T234`, `[T1508]`, `[trac 1508]`. == Examples It is necessary to set up a configuration for the InterTrac facility. This configuration has to be done in the TracIni file, `[intertrac]` section, for example: {{{#!ini [intertrac] # -- Example of setting up an alias: t = trac # -- Link to an external Trac: trac.title = Edgewall's Trac for Trac trac.url = http://trac.edgewall.org }}} The `.url` is mandatory and is used for locating the other Trac. This can be a relative URL in case that Trac environment is located on the same server. The `.title` information is used in a tooltip, ie when hovering the cursor over an InterTrac link. Now, given the above configuration, one could create the following links: * to this InterTrac page: * `trac:wiki:InterTrac` trac:wiki:InterTrac * `t:wiki:InterTrac` t:wiki:InterTrac * Keys are case insensitive: `T:wiki:InterTrac` T:wiki:InterTrac * to the ticket #234: * `trac:ticket:234` trac:ticket:234 * `trac:#234` trac:#234 * `#T234` #T234 * to the changeset [1912]: * `trac:changeset:1912` trac:changeset:1912 * `[T1912]` [T1912] * to the log range [3300:3330]: * `trac:log:@3300:3330` trac:log:@3300:3330 * `[trac 3300:3330]` [trac 3300:3330] * finally, to link to the start page of a remote trac, simply use its prefix followed by ':', inside an explicit link. Example: `[th: Trac Hacks]` (note that the ''remote'' Trac has to run Trac >= 0.11 for this to work'') The generic form `intertrac_prefix:module:id` is translated to the corresponding URL `/module/id`, shorthand links are specific to some modules (e.g. !#T234 is processed by the ticket module) and for the rest (`intertrac_prefix:something`), we rely on the TracSearch#quickjump facility of the remote Trac. ---- See also: TracLinks, InterWiki