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Changes between Version 2 and Version 3 of TracLinks


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Jun 2, 2023 10:32:55 AM (19 months ago)
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trac
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  • TracLinks

    v2 v3  
    1 = Trac Links =
     1= Trac Links
     2
    23[[TracGuideToc]]
    3 
    4 TracLinks are a fundamental feature of Trac, because they allow easy hyperlinking between the various entities in the system—such as tickets, reports, changesets, Wiki pages, milestones, and source files—from anywhere WikiFormatting is used.
    5 
    6 TracLinks are generally of the form '''type:id''' (where ''id'' represents the
    7 number, name or path of the item) though some frequently used kinds of items
    8 also have short-hand notations.
    9 
    10 == Where to use TracLinks ==
     4[[PageOutline(2-5,Contents,pullout)]]
     5
     6TracLinks are a fundamental feature of Trac, allowing easy hyperlinking between the various entities in the system — such as tickets, reports, changesets, Wiki pages, milestones, and source files — from anywhere WikiFormatting is used.
     7
     8TracLinks are generally of the form '''type:id''' (where ''id'' represents the number, name or path of the item) though some frequently used kinds of items also have short-hand notations.
     9
     10== Where to use TracLinks
     11
    1112You can use TracLinks in:
    1213
     
    1718and any other text fields explicitly marked as supporting WikiFormatting.
    1819
    19 == Overview ==
     20== Overview
    2021
    2122||= Wiki Markup =||= Display =||
     
    2829 Milestones :: `milestone:1.0`
    2930 Attachment :: `attachment:example.tgz` (for current page attachment), `attachment:attachment.1073.diff:ticket:944` (absolute path)
    30  Changesets :: `r1`, `[1]`, `changeset:1` or (restricted) `[1/trunk]`, `changeset:1/trunk`
     31 Changesets :: `r1`, `[1]`, `changeset:1` or (restricted) `[1/trunk]`, `changeset:1/trunk`, `[1/repository]`
    3132 Revision log :: `r1:3`, `[1:3]` or `log:@1:3`, `log:trunk@1:3`, `[2:5/trunk]`
    3233 Diffs :: `diff:@1:3`, `diff:plugins/0.12/mercurial-plugin@9128:9953`,
    33           `diff:tags/trac-0.9.2/wiki-default//tags/trac-0.9.3/wiki-default` 
     34          `diff:tags/trac-0.9.2/wiki-default//tags/trac-0.9.3/wiki-default`
    3435          or `diff:trunk/trac@3538//sandbox/vc-refactoring@3539`
    35  Files :: `source:trunk/COPYING`, `source:/trunk/COPYING@200` (at version 200), `source:/trunk/COPYING@200#L25` (at version 200, line 25)
     36 Files :: `source:trunk/COPYING`, `source:/trunk/COPYING@200` (at version 200), `source:/trunk/COPYING@200#L25` (at version 200, line 25), `source:/trunk/COPYING@200:27-30#L25` (at version 200, line 25, highlighting lines 27-30)
    3637}}}
    3738{{{#!td
     
    3940 Parent page :: [..]
    4041 Tickets :: #1 or ticket:1
    41  Ticket comments :: comment:1:ticket:2 
     42 Ticket comments :: comment:1:ticket:2
    4243 Reports :: {1} or report:1
    4344 Milestones :: milestone:1.0
    4445 Attachment :: attachment:example.tgz (for current page attachment), attachment:attachment.1073.diff:ticket:944 (absolute path)
    45  Changesets :: r1, [1], changeset:1 or (restricted) [1/trunk], changeset:1/trunk
     46 Changesets :: r1, [1], changeset:1 or (restricted) [1/trunk], changeset:1/trunk, [1/repository]
    4647 Revision log :: r1:3, [1:3] or log:@1:3, log:trunk@1:3, [2:5/trunk]
    4748 Diffs :: diff:@1:3, diff:plugins/0.12/mercurial-plugin@9128:9953,
    48           diff:tags/trac-0.9.2/wiki-default//tags/trac-0.9.3/wiki-default 
     49          diff:tags/trac-0.9.2/wiki-default//tags/trac-0.9.3/wiki-default
    4950          or diff:trunk/trac@3538//sandbox/vc-refactoring@3539
    50  Files :: source:trunk/COPYING, source:/trunk/COPYING@200 (at version 200), source:/trunk/COPYING@200#L25 (at version 200, line 25)
    51 }}}
    52 
    53 '''Note:''' The wiki:CamelCase form is rarely used, but it can be convenient to refer to
    54 pages whose names do not follow WikiPageNames rules, i.e., single words,
    55 non-alphabetic characters, etc. See WikiPageNames for more about features specific
    56 to links to Wiki page names.
     51 Files :: source:trunk/COPYING, source:/trunk/COPYING@200 (at version 200), source:/trunk/COPYING@200#L25 (at version 200, line 25) source:/trunk/COPYING@200:28-31#L25 (at version 200, line 25, highlighting lines 28-31)
     52}}}
     53
     54'''Note:''' The wiki:CamelCase form is rarely used, but it can be convenient to refer to pages whose names do not follow WikiPageNames rules, ie single words, non-alphabetic characters, etc. See WikiPageNames for more about features specific to links to Wiki page names.
    5755
    5856
     
    8078}}}
    8179|--------------------------------------------------------------------------------------
    82 |||| `wiki` is the default if the namespace part of a full link is omitted:  || 
     80|||| `wiki` is the default if the namespace part of a full link is omitted:  ||
    8381{{{#!td
    8482{{{
     
    10199<wiki:Strange(page@!)>
    102100}}}
     101|--------------------------------------------------------------------------------------
     102|||| Quoting can be used with the full notation to allow brackets in the label. ||
     103{{{#!td
     104{{{
     105[TracIni#logging-log_type-option "[logging] log_type"]
     106}}}
     107}}}
     108{{{#!td
     109[TracIni#logging-log_type-option "[logging] log_type"]
     110}}}
    103111}}}
    104112
    105113TracLinks are a very simple idea, but actually allow quite a complex network of information. In practice, it's very intuitive and simple to use, and we've found the "link trail" extremely helpful to better understand what's happening in a project or why a particular change was made.
    106114
    107 
    108 == Advanced use of TracLinks ==
    109 
    110 === Relative links ===
     115== Advanced use of TracLinks
     116
     117=== Relative links
     118
     119To create a link to a [trac:SubWiki SubWiki]-page just use a '/':
     120{{{
     121 WikiPage/SubWikiPage or ./SubWikiPage
     122}}}
     123
     124To link from a [trac:SubWiki SubWiki] page to a parent, simply use a '..':
     125{{{
     126  [..] or [[..]]
     127}}}
     128  [..] or [[..]]
     129
     130To link from a [trac:SubWiki SubWiki] page to a [=#sibling sibling] page, use a '../':
     131{{{
     132  [../Sibling see next sibling] or [[../Sibling|see next sibling]]
     133}}}
     134  [../Sibling see next sibling] or [[../Sibling|see next sibling]]
     135
     136But in practice you often won't need to add the `../` prefix to link to a sibling page.
     137For resolving the location of a wiki link, it's the target page closest in the hierarchy to the page where the link is written which will be selected. So for example, within a sub-hierarchy, a sibling page will be targeted in preference to a top-level page.
     138This makes it easy to copy or move pages to a sub-hierarchy by [[WikiNewPage#renaming|renaming]] without having to adapt the links.
     139
     140To link explicitly to a [=#toplevel toplevel] Wiki page, use the `wiki:/` prefix. Be careful **not** to use the `/` prefix alone, as this corresponds to the [#Server-relativelinks] syntax and with such a link you will lack the `/wiki/` part in the resulting URL. A link such as `[../newticket]` will stay in the wiki namespace and therefore link to a sibling page.
     141
     142=== Link anchors
    111143
    112144To create a link to a specific anchor in a page, use '#':
    113145{{{
    114  [#Relativelinks relative links] or [[#Relativelinks|relative links]]
    115 }}}
    116 Displays:
    117   [#Relativelinks relative links] or [[#Relativelinks|relative links]]
    118 
    119 Hint: when you move your mouse over the title of a section, a '¶' character will be displayed. This is a link to that specific section and you can use this to copy the `#...` part inside a relative link to an anchor.
    120 
    121 To create a link to a [trac:SubWiki SubWiki]-page just use a '/':
    122 {{{
    123  WikiPage/SubWikiPage or ./SubWikiPage
    124 }}}
    125 
    126 To link from a [trac:SubWiki SubWiki] page to a parent, simply use a '..':
    127 {{{
    128   [..] or [[..]]
    129 }}}
    130   [..] or [[..]]
    131 
    132 To link from a [trac:SubWiki SubWiki] page to a [=#sibling sibling] page, use a '../':
    133 {{{
    134   [../Sibling see next sibling] or [[../Sibling|see next sibling]]
    135 }}}
    136   [../Sibling see next sibling] or [[../Sibling|see next sibling]]
    137 
    138 But in practice you often won't need to add the `../` prefix to link to a sibling page.
    139 For resolving the location of a wiki link, it's the target page closest in the hierarchy
    140 to the page where the link is written which will be selected. So for example, within
    141 a sub-hierarchy, a sibling page will be targeted in preference to a toplevel page.
    142 This makes it easy to copy or move pages to a sub-hierarchy by [[WikiNewPage#renaming|renaming]] without having to adapt the links.
    143 
    144 In order to link explicitly to a [=#toplevel toplevel] Wiki page,
    145 use the `wiki:/` prefix.
    146 Be careful **not** to use the `/` prefix alone, as this corresponds to the
    147 [#Server-relativelinks] syntax and with such a link you will lack the `/wiki/`
    148 part in the resulting URL.
    149 
    150 ''(Changed in 0.11)'' Note that in Trac 0.10, using e.g. `[../newticket]`  may have worked for linking to the `/newticket` top-level URL, but since 0.11, such a link will stay in the wiki namespace and therefore link to a sibling page.
    151 See [#Server-relativelinks] for the new syntax.
    152 
    153 === InterWiki links ===
    154 
    155 Other prefixes can be defined freely and made to point to resources in other Web applications. The definition of those prefixes as well as the URLs of the corresponding Web applications is defined in a special Wiki page, the InterMapTxt page. Note that while this could be used to create links to other Trac environments, there's a more specialized way to register other Trac environments which offers greater flexibility.
    156 
    157 === InterTrac links ===
     146 [#Linkanchors Link anchors] or [[#Linkanchors|Link anchors]]
     147}}}
     148  [#Linkanchors Link anchors] or [[#Linkanchors|Link anchors]]
     149
     150Hint: when you hover your mouse over the title of a section, a '¶' character will be displayed. This is a link to that specific section and you can use this to copy the `#...` part inside a relative link to an anchor.
     151
     152To create a link to the first or last occurrence of a term on a page, use a ''pseudo anchor'' starting with '#/' or '#?':
     153{{{
     154 [#/Milestone first occurrence of Milestone] or
     155 [#?Milestone last occurrence of Milestone]
     156}}}
     157 [#/Milestone first occurrence of Milestone] or
     158 [#?Milestone last occurrence of Milestone]
     159This will also highlight all other matches on the linked page. By default only case sensitive matches are considered. To include case insensitive matches append '/i':
     160{{{
     161 [#/Milestone/i first occurrence of Milestone or milestone] or
     162 [#?Milestone/i last occurrence of Milestone or milestone]
     163}}}
     164 [#/Milestone/i first occurrence of Milestone or milestone] or
     165 [#?Milestone/i last occurrence of Milestone or milestone]
     166
     167''(since Trac 1.0)''
     168
     169Such anchors can be very useful for linking to specific lines in a file in the source browser:
     170{{{
     171 [trac:source:tags/trac-0.12/trac/wiki/api.py#L127 Line 127] or
     172 [trac:source:tags/trac-0.12/trac/ticket/roadmap.py#L47 Line 47]
     173}}}
     174 [trac:source:tags/trac-0.12/trac/wiki/api.py#L127 Line 127] or
     175 [trac:source:tags/trac-0.12/trac/ticket/roadmap.py#L47 Line 47]
     176(Hint: The line numbers displayed in the source browser are links to anchors on the respective lines.)
     177
     178Since such links become outdated when the file changes, it can be useful to link using a '#/' pseudo anchor instead:
     179{{{
     180 [trac:source:trunk/trac/wiki/api.py#/IWikiSyntaxProvider IWikiSyntaxProvider] or
     181 [trac:source:trunk/trac/env.py#/ISystemInfoProvider ISystemInfoProvider]
     182}}}
     183 [trac:source:trunk/trac/wiki/api.py#/IWikiSyntaxProvider IWikiSyntaxProvider] or
     184 [trac:source:trunk/trac/env.py#/ISystemInfoProvider ISystemInfoProvider]
     185
     186=== InterWiki links
     187
     188Other prefixes can be defined freely and made to point to resources in other Web applications. The definition of those prefixes as well as the URLs of the corresponding Web applications is defined in a special Wiki page, the InterMapTxt page. Note that while this could be used to create links to other Trac environments, there is a more specialized way to register other Trac environments which offers greater flexibility.
     189
     190=== InterTrac links
    158191
    159192This can be seen as a kind of InterWiki link specialized for targeting other Trac projects.
    160193
    161 Any type of Trac link can be written in one Trac environment and actually refer to resources in another Trac environment. All that is required is to prefix the Trac link with the name of the other Trac environment followed by a colon. The other Trac environment must be registered on the InterTrac page.
    162 
    163 A distinctive advantage of InterTrac links over InterWiki links is that the shorthand form of Trac links (e.g. `{}`, `r`, `#`) can also be used. For example if T was set as an alias for Trac, links to Trac tickets can be written #T234, links to Trac changesets can be written [trac 1508].
    164 See InterTrac for the complete details.
    165 
    166 === Server-relative links ===
    167 
    168 It is often useful to be able to link to objects in your project that
    169 have no built-in Trac linking mechanism, such as static resources, `newticket`,
    170 a shared `/register` page on the server, etc.
    171 
    172 To link to resources inside the project, use either an absolute path from the project root,
    173 or a relative link from the URL of the current page (''Changed in 0.11''):
     194Any type of Trac link can be written in one Trac environment and actually refer to resources in another Trac environment. All that is required is to prefix the Trac link with the name of the other Trac environment followed by a colon. The other Trac environment must be registered on the InterTrac page.
     195
     196A distinct advantage of InterTrac links over InterWiki links is that the shorthand form of Trac links can also be used, such as `{}`, `r`, `#`. For example, if T was set as an alias for Trac, then links to Trac tickets can be written as #T234, and links to Trac changesets can be written as [trac 1508].
     197See InterTrac for the complete details.
     198
     199=== Server-relative links
     200
     201It is often useful to be able to link to objects in your project that have no built-in Trac linking mechanism, such as static resources, `newticket`, a shared `/register` page on the server, etc.
     202
     203To link to resources inside the project, use either an absolute path from the project root, or a relative link from the URL of the current page (''Changed in 0.11''):
    174204
    175205{{{
     
    189219Display: [//register Register Here] or [[//register|Register Here]]
    190220
    191 === Quoting space in TracLinks ===
    192 
    193 Immediately after a TracLinks prefix, targets containing space characters should
    194 be enclosed in a pair of quotes or double quotes.
     221=== Quoting space in TracLinks
     222
     223Immediately after a TracLinks prefix, targets containing space characters should be enclosed in a pair of quotes or double quotes.
    195224Examples:
    196225 * !wiki:"The whitespace convention"
    197226 * !attachment:'the file.txt' or
    198  * !attachment:"the file.txt" 
    199  * !attachment:"the file.txt:ticket:123" 
     227 * !attachment:"the file.txt"
     228 * !attachment:"the file.txt:ticket:123"
    200229
    201230Note that by using [trac:WikiCreole] style links, it's quite natural to write links containing spaces:
     
    203232 * ![[attachment:the file.txt]]
    204233
    205 === Escaping Links ===
     234=== Escaping Links
    206235
    207236To prevent parsing of a !TracLink, you can escape it by preceding it with a '!' (exclamation mark).
     
    215244 ![42] is not a link either.
    216245
    217 
    218 === Parameterized Trac links ===
     246=== Parameterized Trac links
    219247
    220248Many Trac resources have more than one way to be rendered, depending on some extra parameters. For example, a Wiki page can accept a `version` or a `format` parameter, a report can make use of dynamic variables, etc.
     
    226254 - `[/newticket?summary=Add+short+description+here create a ticket with URL with spaces]`
    227255
    228 
    229 == TracLinks Reference ==
     256== TracLinks Reference
     257
    230258The following sections describe the individual link types in detail, as well as notes on advanced usage of links.
    231259
    232 === attachment: links ===
     260=== attachment: links
    233261
    234262The link syntax for attachments is as follows:
    235  * !attachment:the_file.txt creates a link to the attachment the_file.txt of the current object
     263 * !attachment:the_file.txt creates a link to the attachment the_file.txt of the current page
    236264 * !attachment:the_file.txt:wiki:MyPage creates a link to the attachment the_file.txt of the !MyPage wiki page
    237265 * !attachment:the_file.txt:ticket:753 creates a link to the attachment the_file.txt of the ticket 753
    238266
    239 Note that the older way, putting the filename at the end, is still supported: !attachment:ticket:753:the_file.txt.
     267Note that the older way, putting the filename at the end, is still supported: !attachment:ticket:753:the_file.txt, but is not recommended.
    240268
    241269If you'd like to create a direct link to the content of the attached file instead of a link to the attachment page, simply use `raw-attachment:` instead of `attachment:`.
    242270
    243 This can be useful for pointing directly to an HTML document, for example. Note that for this use case, you'd have to allow the web browser to render the content by setting `[attachment] render_unsafe_content = yes` (see TracIni#attachment-section). Caveat: only do that in environments for which you're 100% confident you can trust the people who are able to attach files, as otherwise this would open up your site to [wikipedia:Cross-site_scripting cross-site scripting] attacks.
     271This can be useful for pointing directly to an HTML document, for example. Note that for this use case, you'd have to allow the web browser to render the content by setting [[TracIni#attachment-render_unsafe_content-option|"[attachment] render_unsafe_content"]] = `enabled`. Caveat: only do that in environments for which you're 100% confident you can trust the people who are able to attach files, as this opens up your site to [wikipedia:Cross-site_scripting cross-site scripting] attacks.
    244272
    245273See also [#export:links].
    246274
    247 === comment: links ===
     275=== comment: links
    248276
    249277When you're inside a given ticket, you can simply write e.g. !comment:3 to link to the third change comment.
    250278It is possible to link to a comment of a specific ticket from anywhere using one of the following syntax:
    251  - `comment:3:ticket:123` 
     279 - `comment:3:ticket:123`
    252280 - `ticket:123#comment:3` (note that you can't write `#123#!comment:3`!)
    253281It is also possible to link to the ticket's description using one of the following syntax:
     
    256284 - `ticket:123#comment:description`
    257285
    258 === query: links ===
     286=== htdocs: links
     287
     288Use `htdocs:path/to/file` to reference files in the `htdocs` directory of the Trac environment, the [TracEnvironment#DirectoryStructure web resource directory].
     289
     290=== query: links
    259291
    260292See TracQuery#UsingTracLinks and [#ticket:links].
    261293
    262 === search: links ===
    263 
    264 See TracSearch#SearchLinks
    265 
    266 === ticket: links ===
    267  ''alias:'' `bug:`
     294=== search: links
     295
     296See TracSearch#SearchTracLinks
     297
     298=== ticket: links
     299
     300 ''aliases:'' `bug:`, `issue:`
    268301
    269302Besides the obvious `ticket:id` form, it is also possible to specify a list of tickets or even a range of tickets instead of the `id`. This generates a link to a custom query view containing this fixed set of tickets.
    270303
    271 Example: 
     304Example:
    272305 - `ticket:5000-6000`
    273306 - `ticket:1,150`
    274307
    275 ''(since Trac 0.11)''
    276 
    277 === timeline: links ===
    278 
    279 Links to the timeline can be created by specifying a date in the ISO:8601 format. The date can be optionally followed by a time specification. The time is interpreted as being UTC time, but alternatively you can specify your local time, followed by your timezone if you don't want to compute the UTC time.
     308=== timeline: links
     309
     310Links to the timeline can be created by specifying a date in the ISO:8601 format. The date can be optionally followed by a time specification. The time is interpreted as being UTC time, but if you don't want to compute the UTC time, you can specify a local time followed by your timezone offset relative to UTC.
    280311
    281312Examples:
     
    284315 - `timeline:2008-01-29T15:48Z`
    285316 - `timeline:2008-01-29T16:48+01`
    286 
    287 ''(since Trac 0.11)''
    288 
    289 === wiki: links ===
    290 
    291 See WikiPageNames and [#QuotingspaceinTracLinks quoting space in TracLinks] above.
    292 
    293 === Version Control related links ===
    294 
    295 It should be noted that multiple repository support works by creating a kind of virtual namespace for versioned files in which the toplevel folders correspond to the repository names. Therefore, in presence of multiple repositories, a ''/path'' specification in the syntax of links detailed below should start with the name of the repository. If omitted, the default repository is used. In case a toplevel folder of the default repository has the same name as a repository, the latter "wins". One can always access such folder by fully qualifying it (the default repository can be an alias of a named repository, or conversely, it is always possible to create an alias for the default repository, ask your Trac administrator).
     317 - `timeline:2008-01-29T16:48+0100`
     318 - `timeline:2008-01-29T16:48+01:00`
     319
     320=== wiki: links
     321
     322See WikiPageNames and [#QuotingspaceinTracLinks quoting space in TracLinks] above. It is possible to create a link to a specific page revision using the syntax WikiStart@1.
     323
     324=== Version Control system links
     325
     326It should be noted that multiple repository support works by creating a kind of virtual namespace for versioned files in which the toplevel folders correspond to the repository names. Therefore, in presence of multiple repositories, a ''/path'' specification in the syntax of links detailed below should start with the name of the repository. If omitted, the default repository is used. In case a toplevel folder of the default repository has the same name as a repository, the link directs to the latter. One can always access such folder by fully qualifying it. The default repository can be an alias of a named repository, or conversely, there may be one or more aliases for the default repository, ask your Trac administrator.
    296327
    297328For example, `source:/trunk/COPYING` targets the path `/trunk/COPYING` in the default repository, whereas `source:/projectA/trunk/COPYING` targets the path `/trunk/COPYING` in the repository named `projectA`. This can be the same file if `'projectA'` is an alias to the default repository or if `''` (the default repository) is an alias to `'projectA'`.
    298329
    299 ==== source: links ====
     330==== source: links
     331
    300332 ''aliases:'' `browser:`, `repos:`
    301333
    302 The default behavior for a source:/some/path link is to open the browser in that directory directory
    303 if the path points to a directory or to show the latest content of the file.
     334The default behavior for a `source:/some/path link` is to open the browser in that directory directory if the path points to a directory or to show the latest content of the file.
    304335
    305336It's also possible to link directly to a specific revision of a file like this:
    306337 - `source:/some/file@123` - link to the file's revision 123
    307338 - `source:/some/file@head` - link explicitly to the latest revision of the file
     339 - `source:/some/file@named-branch` - link to latest revision of the specified file in `named-branch` (DVCS such as Git or Mercurial)
    308340
    309341If the revision is specified, one can even link to a specific line number:
    310342 - `source:/some/file@123#L10`
    311343 - `source:/tag/0.10@head#L10`
     344 - `source:/some/file@named-branch#L10`
    312345
    313346Finally, one can also highlight an arbitrary set of lines:
    314  - `source:/some/file@123:10-20,100,103#L99` - highlight lines 10 to 20, and lines 100 and 103.
    315    ''(since 0.11)''
     347 - `source:/some/file@123:10-20,100,103#L99` - highlight lines 10 to 20, and lines 100 and 103, and target line 99
     348 - or without version number (the `@` is still needed): `source:/some/file@:10-20,100,103#L99`. Version can be omitted when the path is pointing to a source file that will no longer change (like `source:/tags/...`), otherwise it's better to specify which lines of //which version// of the file you're talking about.
    316349
    317350Note that in presence of multiple repositories, the name of the repository is simply integrated in the path you specify for `source:` (e.g. `source:reponame/trunk/README`). ''(since 0.12)''
    318351
    319 ==== export: links ====
     352==== export: links
    320353
    321354To force the download of a file in the repository, as opposed to displaying it in the browser, use the `export` link.  Several forms are available:
     
    323356 * `export:123:/some/file` - get revision 123 of the specified file
    324357 * `export:/some/file@123` - get revision 123 of the specified file
    325 
    326 This can be very useful for displaying XML or HTML documentation with correct stylesheets and images, in case that has been checked in into the repository. Note that for this use case, you'd have to allow the web browser to render the content by setting `[browser] render_unsafe_content = yes` (see TracIni#browser-section), otherwise Trac will force the files to be downloaded as attachments for security concerns.
     358 * `export:/some/file@named-branch` - get latest revision of the specified file in `named-branch` (DVCS such as Git or Mercurial).
     359
     360This can be very useful for displaying XML or HTML documentation with correct stylesheets and images, in case that has been checked in into the repository. Note that for this use case, you'd have to allow the web browser to render the content by setting [[TracIni#browser-render_unsafe_content-option|"[browser] render_unsafe_content"]] = `enabled`, otherwise Trac will force the files to be downloaded as attachments for security concerns.
    327361
    328362If the path is to a directory in the repository instead of a specific file, the source browser will be used to display the directory (identical to the result of `source:/some/dir`).
    329363
    330 ==== log: links ====
     364==== log: links
    331365
    332366The `log:` links are used to display revision ranges. In its simplest form, it can link to the latest revisions of the specified path, but it can also support displaying an arbitrary set of revisions.
     
    334368 - `log:/trunk/tools` - the latest revisions in `trunk/tools`
    335369 - `log:/trunk/tools@10000` - the revisions in `trunk/tools` starting from  revision 10000
    336  - `log:@20788,20791:20795` - list revision 20788 and the revisions from 20791 to 20795 
     370 - `log:@20788,20791:20795` - list revision 20788 and the revisions from 20791 to 20795
    337371 - `log:/trunk/tools@20788,20791:20795` - list revision 20788 and the revisions from 20791 to 20795 which affect the given path
     372 - `log:/tools@named-branch` - the revisions in `tools` starting from the latest revision in `named-branch` (DVCS such as Git or Mercurial)
    338373
    339374There are short forms for revision ranges as well:
     
    344379Finally, note that in all of the above, a revision range can be written either as `x:y` or `x-y`.
    345380
    346 In the presence of multiple repositories, the name of the repository should be specified as the first part of the path, e.g. `log:repos/branches` or `[20-40/repos]`.
     381==== Multi-repository links
     382
     383In the presence of multiple repositories, the name of the repository should be specified as the first part of the path:
     384- `log:repos/branch`
     385- `[20-40/repos]`
     386- `r20/repos`
    347387
    348388----
    349389See also: WikiFormatting, TracWiki, WikiPageNames, InterTrac, InterWiki
    350  

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