Changes between Version 2 and Version 3 of TracLinks


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Aug 13, 2019, 3:52:01 PM (4 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, 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 =|| 
     
    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`, 
     
    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, 
     
    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. 
    137 Be careful **not** to use the `/` prefix alone, as this corresponds to the 
    138 [#Server-relativelinks] syntax and with such a link you will lack the `/wiki/`  
    139 part in the resulting URL. 
    140  
    141 ''(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.  
    142 See [#Server-relativelinks] for the new syntax. 
    143  
    144 === 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 
    145133 
    146134To create a link to a specific anchor in a page, use '#': 
     
    186174 [trac:source:trunk/trac/env.py#/ISystemInfoProvider ISystemInfoProvider] 
    187175 
    188 === InterWiki links === 
    189  
    190 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. 
    191  
    192 === 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 
    193181 
    194182This can be seen as a kind of InterWiki link specialized for targeting other Trac projects. 
     
    199187See InterTrac for the complete details.  
    200188 
    201 === Server-relative links === 
    202  
    203 It is often useful to be able to link to objects in your project that 
    204 have no built-in Trac linking mechanism, such as static resources, `newticket`, 
    205 a shared `/register` page on the server, etc. 
    206  
    207 To link to resources inside the project, use either an absolute path from the project root,  
    208 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''): 
    209194 
    210195{{{ 
     
    224209Display: [//register Register Here] or [[//register|Register Here]] 
    225210 
    226 === Quoting space in TracLinks === 
    227  
    228 Immediately after a TracLinks prefix, targets containing space characters should 
    229 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. 
    230214Examples: 
    231215 * !wiki:"The whitespace convention" 
     
    238222 * ![[attachment:the file.txt]] 
    239223 
    240 === Escaping Links === 
     224=== Escaping Links 
    241225 
    242226To prevent parsing of a !TracLink, you can escape it by preceding it with a '!' (exclamation mark). 
     
    250234 ![42] is not a link either. 
    251235 
    252  
    253 === Parameterized Trac links === 
     236=== Parameterized Trac links 
    254237 
    255238Many 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. 
     
    261244 - `[/newticket?summary=Add+short+description+here create a ticket with URL with spaces]` 
    262245 
    263  
    264 == TracLinks Reference == 
     246== TracLinks Reference 
     247 
    265248The following sections describe the individual link types in detail, as well as notes on advanced usage of links. 
    266249 
    267 === attachment: links === 
     250=== attachment: links 
    268251 
    269252The link syntax for attachments is as follows: 
     
    280263See also [#export:links]. 
    281264 
    282 === comment: links === 
     265=== comment: links 
    283266 
    284267When you're inside a given ticket, you can simply write e.g. !comment:3 to link to the third change comment. 
     
    291274 - `ticket:123#comment:description` 
    292275 
    293 === htdocs: links === 
     276=== htdocs: links 
    294277 
    295278Use `htdocs:path/to/file` to reference files in the `htdocs` directory of the Trac environment, the [TracEnvironment#DirectoryStructure web resource directory]. 
    296279 
    297 === query: links === 
     280=== query: links 
    298281 
    299282See TracQuery#UsingTracLinks and [#ticket:links]. 
    300283 
    301 === search: links === 
     284=== search: links 
    302285 
    303286See TracSearch#SearchLinks  
    304287 
    305 === ticket: links === 
    306  ''alias:'' `bug:` 
     288=== ticket: links 
     289 
     290 ''aliases:'' `bug:`, `issue:` 
    307291 
    308292Besides 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. 
     
    312296 - `ticket:1,150` 
    313297 
    314 ''(since Trac 0.11)'' 
    315  
    316 === timeline: links === 
    317  
    318 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. 
     298=== timeline: links 
     299 
     300Links 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. 
    319301 
    320302Examples: 
     
    323305 - `timeline:2008-01-29T15:48Z` 
    324306 - `timeline:2008-01-29T16:48+01` 
    325  
    326 ''(since Trac 0.11)'' 
    327  
    328 === wiki: links === 
     307 - `timeline:2008-01-29T16:48+0100` 
     308 - `timeline:2008-01-29T16:48+01:00` 
     309 
     310=== wiki: links 
    329311 
    330312See 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. 
    331313 
    332 === Version Control related links === 
    333  
    334 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. 
    335317 
    336318For 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'`. 
    337319 
    338 ==== source: links ==== 
     320==== source: links 
     321 
    339322 ''aliases:'' `browser:`, `repos:` 
    340323 
    341 The default behavior for a source:/some/path link is to open the browser in that directory directory  
    342 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. 
    343325 
    344326It's also possible to link directly to a specific revision of a file like this: 
    345327 - `source:/some/file@123` - link to the file's revision 123 
    346328 - `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) 
    347330 
    348331If the revision is specified, one can even link to a specific line number: 
    349332 - `source:/some/file@123#L10` 
    350333 - `source:/tag/0.10@head#L10` 
     334 - `source:/some/file@named-branch#L10` 
    351335 
    352336Finally, one can also highlight an arbitrary set of lines: 
    353  - `source:/some/file@123:10-20,100,103#L99` - highlight lines 10 to 20, and lines 100 and 103. 
    354    ''(since 0.11)'' 
     337 - `source:/some/file@123:10-20,100,103#L99` - highlight lines 10 to 20, and lines 100 and 103, and target line 99 
     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. 
    355339 
    356340Note 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)'' 
    357341 
    358 ==== export: links ==== 
     342==== export: links 
    359343 
    360344To 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: 
     
    362346 * `export:123:/some/file` - get revision 123 of the specified file 
    363347 * `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). 
    364349 
    365350This 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.  
     
    367352If 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`). 
    368353 
    369 ==== log: links ==== 
     354==== log: links 
    370355 
    371356The `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. 
     
    375360 - `log:@20788,20791:20795` - list revision 20788 and the revisions from 20791 to 20795  
    376361 - `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) 
    377363 
    378364There are short forms for revision ranges as well: 
     
    387373---- 
    388374See also: WikiFormatting, TracWiki, WikiPageNames, InterTrac, InterWiki 
    389