Changes between Version 3 and Version 4 of TracLinks


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Timestamp:
Feb 1, 2017 12:38:00 AM (11 months ago)
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trac
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  • TracLinks

    v3 v4  
    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, 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 where 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 =||
     
    5152}}}
    5253
    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.
     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
     
    105103TracLinks 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.
    106104
    107 
    108 == Advanced use of TracLinks ==
    109 
    110 === Relative links ===
     105== Advanced use of TracLinks
     106
     107=== Relative links
    111108
    112109To create a link to a [trac:SubWiki SubWiki]-page just use a '/':
     
    128125
    129126But in practice you often won't need to add the `../` prefix to link to a sibling page.
    130 For resolving the location of a wiki link, it's the target page closest in the hierarchy
    131 to the page where the link is written which will be selected. So for example, within
    132 a sub-hierarchy, a sibling page will be targeted in preference to a toplevel page.
     127For 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 toplevel page.
    133128This makes it easy to copy or move pages to a sub-hierarchy by [[WikiNewPage#renaming|renaming]] without having to adapt the links.
    134129
    135 In order to link explicitly to a [=#toplevel toplevel] Wiki page,
    136 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.
    137 
    138 === Link anchors ===
     130To 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.
     131
     132=== Link anchors
    139133
    140134To create a link to a specific anchor in a page, use '#':
     
    180174 [trac:source:trunk/trac/env.py#/ISystemInfoProvider ISystemInfoProvider]
    181175
    182 === InterWiki links ===
    183 
    184 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.
    185 
    186 === InterTrac links ===
     176=== InterWiki links
     177
     178Other 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.
     179
     180=== InterTrac links
    187181
    188182This can be seen as a kind of InterWiki link specialized for targeting other Trac projects.
     
    193187See InterTrac for the complete details.
    194188
    195 === Server-relative links ===
    196 
    197 It is often useful to be able to link to objects in your project that
    198 have no built-in Trac linking mechanism, such as static resources, `newticket`,
    199 a shared `/register` page on the server, etc.
    200 
    201 To link to resources inside the project, use either an absolute path from the project root,
    202 or a relative link from the URL of the current page (''Changed in 0.11''):
     189=== Server-relative links
     190
     191It 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.
     192
     193To 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''):
    203194
    204195{{{
     
    218209Display: [//register Register Here] or [[//register|Register Here]]
    219210
    220 === Quoting space in TracLinks ===
    221 
    222 Immediately after a TracLinks prefix, targets containing space characters should
    223 be enclosed in a pair of quotes or double quotes.
     211=== Quoting space in TracLinks
     212
     213Immediately after a TracLinks prefix, targets containing space characters should be enclosed in a pair of quotes or double quotes.
    224214Examples:
    225215 * !wiki:"The whitespace convention"
     
    232222 * ![[attachment:the file.txt]]
    233223
    234 === Escaping Links ===
     224=== Escaping Links
    235225
    236226To prevent parsing of a !TracLink, you can escape it by preceding it with a '!' (exclamation mark).
     
    244234 ![42] is not a link either.
    245235
    246 
    247 === Parameterized Trac links ===
     236=== Parameterized Trac links
    248237
    249238Many 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.
     
    255244 - `[/newticket?summary=Add+short+description+here create a ticket with URL with spaces]`
    256245
    257 
    258 == TracLinks Reference ==
     246== TracLinks Reference
     247
    259248The following sections describe the individual link types in detail, as well as notes on advanced usage of links.
    260249
    261 === attachment: links ===
     250=== attachment: links
    262251
    263252The link syntax for attachments is as follows:
     
    274263See also [#export:links].
    275264
    276 === comment: links ===
     265=== comment: links
    277266
    278267When you're inside a given ticket, you can simply write e.g. !comment:3 to link to the third change comment.
     
    285274 - `ticket:123#comment:description`
    286275
    287 === htdocs: links ===
     276=== htdocs: links
    288277
    289278Use `htdocs:path/to/file` to reference files in the `htdocs` directory of the Trac environment, the [TracEnvironment#DirectoryStructure web resource directory].
    290279
    291 === query: links ===
     280=== query: links
    292281
    293282See TracQuery#UsingTracLinks and [#ticket:links].
    294283
    295 === search: links ===
     284=== search: links
    296285
    297286See TracSearch#SearchLinks
    298287
    299 === ticket: links ===
    300  ''alias:'' `bug:`
     288=== ticket: links
     289
     290 ''aliases:'' `bug:`, `issue:`
    301291
    302292Besides 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.
     
    306296 - `ticket:1,150`
    307297
    308 === timeline: links ===
     298=== timeline: links
    309299
    310300Links 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.
     
    318308 - `timeline:2008-01-29T16:48+01:00`
    319309
    320 === wiki: links ===
     310=== wiki: links
    321311
    322312See 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.
    323313
    324 === Version Control related links ===
    325 
    326 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).
     314=== Version Control related links
     315
     316It 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.
    327317
    328318For 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'`.
    329319
    330 ==== source: links ====
     320==== source: links
     321
    331322 ''aliases:'' `browser:`, `repos:`
    332323
    333 The default behavior for a `source:/some/path link` is to open the browser in that directory directory
    334 if the path points to a directory or to show the latest content of the file.
     324The 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.
    335325
    336326It's also possible to link directly to a specific revision of a file like this:
    337327 - `source:/some/file@123` - link to the file's revision 123
    338328 - `source:/some/file@head` - link explicitly to the latest revision of the file
     329 - `source:/some/file@named-branch` - link to latest revision of the specified file in `named-branch` (DVCS such as Git or Mercurial)
    339330
    340331If the revision is specified, one can even link to a specific line number:
    341332 - `source:/some/file@123#L10`
    342333 - `source:/tag/0.10@head#L10`
     334 - `source:/some/file@named-branch#L10`
    343335
    344336Finally, one can also highlight an arbitrary set of lines:
    345337 - `source:/some/file@123:10-20,100,103#L99` - highlight lines 10 to 20, and lines 100 and 103, and target line 99
    346  - 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
     338 - 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.
    347339
    348340Note 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)''
    349341
    350 ==== export: links ====
     342==== export: links
    351343
    352344To 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:
     
    354346 * `export:123:/some/file` - get revision 123 of the specified file
    355347 * `export:/some/file@123` - get revision 123 of the specified file
     348 * `export:/some/file@named-branch` - get latest revision of the specified file in `named-branch` (DVCS such as Git or Mercurial).
    356349
    357350This 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.
     
    359352If 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`).
    360353
    361 ==== log: links ====
     354==== log: links
    362355
    363356The `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.
     
    367360 - `log:@20788,20791:20795` - list revision 20788 and the revisions from 20791 to 20795
    368361 - `log:/trunk/tools@20788,20791:20795` - list revision 20788 and the revisions from 20791 to 20795 which affect the given path
     362 - `log:/tools@named-branch` - the revisions in `tools` starting from the latest revision in `named-branch` (DVCS such as Git or Mercurial)
    369363
    370364There are short forms for revision ranges as well:
     
    379373----
    380374See also: WikiFormatting, TracWiki, WikiPageNames, InterTrac, InterWiki
    381