Changes between Version 2 and Version 3 of TracLinks


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Timestamp:
07/27/2020 08:15:49 PM (12 days ago)
Author:
trac
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  • TracLinks

    v2 v3  
    44[[PageOutline(2-5,Contents,pullout)]]
    55
    6 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 where WikiFormatting is used.
     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.
    77
    88TracLinks 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.
     
    3232 Revision log :: `r1:3`, `[1:3]` or `log:@1:3`, `log:trunk@1:3`, `[2:5/trunk]`
    3333 Diffs :: `diff:@1:3`, `diff:plugins/0.12/mercurial-plugin@9128:9953`,
    34           `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`
    3535          or `diff:trunk/trac@3538//sandbox/vc-refactoring@3539`
    36  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)
    3737}}}
    3838{{{#!td
     
    4040 Parent page :: [..]
    4141 Tickets :: #1 or ticket:1
    42  Ticket comments :: comment:1:ticket:2 
     42 Ticket comments :: comment:1:ticket:2
    4343 Reports :: {1} or report:1
    4444 Milestones :: milestone:1.0
     
    4747 Revision log :: r1:3, [1:3] or log:@1:3, log:trunk@1:3, [2:5/trunk]
    4848 Diffs :: diff:@1:3, diff:plugins/0.12/mercurial-plugin@9128:9953,
    49           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
    5050          or diff:trunk/trac@3538//sandbox/vc-refactoring@3539
    51  Files :: source:trunk/COPYING, source:/trunk/COPYING@200 (at version 200), source:/trunk/COPYING@200#L25 (at version 200, line 25)
     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)
    5252}}}
    5353
     
    7878}}}
    7979|--------------------------------------------------------------------------------------
    80 |||| `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:  ||
    8181{{{#!td
    8282{{{
     
    9999<wiki:Strange(page@!)>
    100100}}}
     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}}}
    101111}}}
    102112
     
    125135
    126136But in practice you often won't need to add the `../` prefix to link to a sibling page.
    127 For 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.
     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.
    128138This makes it easy to copy or move pages to a sub-hierarchy by [[WikiNewPage#renaming|renaming]] without having to adapt the links.
    129139
     
    138148  [#Linkanchors Link anchors] or [[#Linkanchors|Link anchors]]
    139149
    140 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.
     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.
    141151
    142152To create a link to the first or last occurrence of a term on a page, use a ''pseudo anchor'' starting with '#/' or '#?':
     
    182192This can be seen as a kind of InterWiki link specialized for targeting other Trac projects.
    183193
    184 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. 
    185 
    186 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].
    187 See InterTrac for the complete details. 
     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.
    188198
    189199=== Server-relative links
     
    215225 * !wiki:"The whitespace convention"
    216226 * !attachment:'the file.txt' or
    217  * !attachment:"the file.txt" 
    218  * !attachment:"the file.txt:ticket:123" 
     227 * !attachment:"the file.txt"
     228 * !attachment:"the file.txt:ticket:123"
    219229
    220230Note that by using [trac:WikiCreole] style links, it's quite natural to write links containing spaces:
     
    251261
    252262The link syntax for attachments is as follows:
    253  * !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
    254264 * !attachment:the_file.txt:wiki:MyPage creates a link to the attachment the_file.txt of the !MyPage wiki page
    255265 * !attachment:the_file.txt:ticket:753 creates a link to the attachment the_file.txt of the ticket 753
    256266
    257 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.
    258268
    259269If 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:`.
    260270
    261 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.
    262272
    263273See also [#export:links].
     
    267277When you're inside a given ticket, you can simply write e.g. !comment:3 to link to the third change comment.
    268278It is possible to link to a comment of a specific ticket from anywhere using one of the following syntax:
    269  - `comment:3:ticket:123` 
     279 - `comment:3:ticket:123`
    270280 - `ticket:123#comment:3` (note that you can't write `#123#!comment:3`!)
    271281It is also possible to link to the ticket's description using one of the following syntax:
     
    284294=== search: links
    285295
    286 See TracSearch#SearchLinks
     296See TracSearch#SearchTracLinks
    287297
    288298=== ticket: links
     
    292302Besides 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.
    293303
    294 Example: 
     304Example:
    295305 - `ticket:5000-6000`
    296306 - `ticket:1,150`
     
    312322See 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.
    313323
    314 === Version Control related links
    315 
    316 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.
     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.
    317327
    318328For 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'`.
     
    348358 * `export:/some/file@named-branch` - get latest revision of the specified file in `named-branch` (DVCS such as Git or Mercurial).
    349359
    350 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.
     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.
    351361
    352362If 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`).
     
    358368 - `log:/trunk/tools` - the latest revisions in `trunk/tools`
    359369 - `log:/trunk/tools@10000` - the revisions in `trunk/tools` starting from  revision 10000
    360  - `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
    361371 - `log:/trunk/tools@20788,20791:20795` - list revision 20788 and the revisions from 20791 to 20795 which affect the given path
    362372 - `log:/tools@named-branch` - the revisions in `tools` starting from the latest revision in `named-branch` (DVCS such as Git or Mercurial)
     
    369379Finally, note that in all of the above, a revision range can be written either as `x:y` or `x-y`.
    370380
    371 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`
    372387
    373388----