# pkgdown 1.5.1

* Syntax highlighting works on Windows once more (#1282).

* pkgdown no longer fails if your `.Rd` files have duplicated `\aliases` 
  as were produced by an older version of roxygen2 (#1290).

* Rendering empty `.md` file now returns empty string (#1285).

* `build_articles_index()` is now exported to rapidly rebuild the index (#1281)

* `deploy_site_github()` now accepts a `host` argument to specify alternate 
  hosts (e.g., Github enterprise) (@dimagor, #1165) and once again works as 
  intended on Travis-CI (@jimhester, #1276).

# pkgdown 1.5.0

## New features

* The articles index page and navbar have been overhauled. There are two
  major new features in this release:
  
    * The articles index page now displays article `description`s,
      taken from YAML metadata belonging to each article. This lets you provide 
      more context about each article and describe why one might want to read 
      it (#1227).
      
    * The articles navbar is now also controlled by the `articles` section
      in `_pkgdown.yml`. The ordering of the sections, and articles within
      them, control the order of the articles in the navbar, and you can
      use the new `navbar` field to control whether or not each section
      appears in the navbar (#1101, #1146).

* The reference index now has two levels of heading hierarchy: `title` and
  `subtitle` (#327).

* Tables of contents in sidebars now use
  [bootstrap-toc](https://afeld.github.io/bootstrap-toc/); this considerably
  improves navigation for long articles and reference pages.

* You can now control the links to source files (in reference pages and 
  articles) and issues and users (in the NEWS) with new `repo$url` config
  option (#1238). This makes it easier to use pkgdown with GitHub enterprise,
  packages in subdirectories, and other source hosts (like bitbucket).
  
    ```yaml
    repo:
      url:
        home: https://github.com/r-lib/pkgdown/
        source: https://github.com/r-lib/pkgdown/blob/master/
        issue: https://github.com/r-lib/pkgdown/issues/
        user: https://github.com/
    ```
    
    The individual components (e.g. path, issue number, username) are pasted on 
    the end of these urls so they should have trailing `/`s.

    You don't need to set these links for GitLab, as pkgdown now detects 
    GitLab urls automatically (since they use the same structure as GitHub)
    (#1045). 

* There's much richer control over Open Graph and Twitter metadata for the 
  whote site and for individual articles. See new `vignette("metadata")` for 
  details (@gadenbuie, #936).

* New `deploy_to_branch()` function to build and deploy a site to a branch,
  defaulting to `gh-pages` for use with GitHub Pages. This is used in our 
  recommended GitHub action workflow for automatically building and deploying
  pkgdown sites for packages on GitHub (@jimhester, #1221).

* Updated JS libraries: jquery 3.3.1 -> 3.4.1; bootswatch 3.3.7 -> 3.4.0;
  bootstrap 3.3.7 -> bootstrap 3.4.1; docsearch 2.6.1 -> 2.6.3;
  fontawesome 5.11.1 -> 5.12.1; headroom.js 0.9.44 -> 0.11.0; 
  clipboard.js 2.0.4 -> 2.0.6 (@jayhesselberth).

## Auto-linking improvements

* Examples and Rmd now use exactly the same syntax highlighting strategy.

* In examples and Rmd, calls of the form `current_package::foo` now get
  a local link (#1262).

* `\preformatted{}` blocks are now highlighted and linked if they parse
  as R code (#1180).

* `library(pkgdown)` is now automatically linked to the reference index for 
  "pkgdown" not the documentation for `library()` (#1161).

* `help("topic")` is now automatically linked to the documentation for "topic",
  not to the documentation for `help()` (#1210)

## Minor improvements and bug fixes

### Articles

* `build_home()` no longer uses (unrendered) `README.Rmd` or `index.Rmd` if
  corresponding `.md` files are not found.

* `build_article()` failures now print more information to help you debug
  the problem (#952).

* The name of the vignette mapped to the "Get started" entry in the navbar 
  is now more flexible. You can use an article (e.g `articles/{pkgname}`) 
  and if your package has a `.` in its name you can replace it with `-` to 
  generate a valid article name (e.g. the get started vignette for 
  `pack.down` would be `pack-down`) (#1166).

### Deployment

* `deploy_to_branch()` now correctly captures the commit SHA on GitHub Actions
  (@coatless, #1252).

* `deploy_to_branch(github_pages = TRUE)` generates a `.nojekyll` to prevent
  jekyll ever executing (#1242).

* `CNAME` is no longer generated by `init_site()`, but is instead conditionally 
  by `deploy_to_branch()` when `github_pages = TRUE`. This is a better a fit 
  because the `CNAME` file is only needed by GitHub pages (#969).

* `deploy_site_github()` argument `repo_slug` has been deprecated and is no
  longer needed or used. (@jimhester, #1221)

### News 
See additional details in `?build_news`:
    
* You can optionally suppress the CRAN release dates added to the news 
  page (#1118).

* Multi-page news style gets a better yaml specification (the old style 
  will continue to work so no need to change existing YAML).

### Reference

* A topic named `index` will not longer clobber the reference index (#1110).

* Topic names/aliases on reference index are now escaped (#1216). 

* `build_reference()` gives better warnings if your `_pkgdown.yml` is
  constructed incorrectly (#1025).

* New `has_keyword()` topic selector for `reference`. `has_keyword("datasets")`
  is particularly useful for selecting all data documentation (#760).

* New `lacks_concepts()` can select topics that do not contain any of 
  a number of specified concepts. (@mikldk, #1232)

### Home, authors, and citation
 
* pkgdown now escapes html and linkifies links in comments in author info 
  from DESCRIPTION (@maelle, #1204)

* pkgdown now uses the ORCiD logo included in Font Awesome 5.11 instead of 
  querying it from members.orcid.org (@bisaloo, #1153)

* badges are now extracted from everything between `<!--badges: start-->`
  and `<!--badges: end-->`. They used to be extracted only if they were
  direct children of the first `<p>` after `<!--badges: start-->`.

* `build_home()` now looks for `pkgdown/index.md` in addition to the top-level 
  `index` or `README` files (@nteetor, #1031)

### Navbar

* pkgdown now formats the package version displayed in the navbar the same way
  as it has been specified in the DESCRIPTION file. In particular, version
  separators (e.g. `.` and `-`) are preserved. (#1170, @kevinushey)

* add support for navbar submenus: you can create submenus following the 
  convention established in [rstudio/rmarkdown#721](https://github.com/rstudio/rmarkdown/issues/721) (@ijlyttle, @wendtke, #1213)

### Other

* Updated JS libraries: jquery 3.3.1 -> 3.4.1; bootswatch 3.3.7 -> 3.4.0;
  bootstrap 3.3.7 -> bootstrap 3.4.1; docsearch 2.6.1 -> 2.6.3 
  (@jayhesselberth).

* Markdown conversion now explicitly allows markdown inside of HTML blocks;
  this was previously accidentally disabled (#1220).

* A timestamp for the last site build is reported in `pkgdown.yml` (#1122).

# pkgdown 1.4.1

* Don't install test package in user library (fixes CRAN failure).

# pkgdown 1.4.0

## New features

* build citation as specified by the `textVersion` argument of `citEntry` in the
  `CITATION` file (#1096, @yiluheihei)

* `build_site()`, `build_reference()` and `build_home()` gain a parameter 
  `devel` which controls whether you're in deployment or development mode.
  It generalises and replaces (with deprecation) the existing `document` 
  argument.
  
    Development mode is optimised for rapid iteration and is the default
    for `build_reference()`. It uses `pkgload::load_all()` to load code
    directly from disk in order.
    
    Deployment mode is slower, but guarantees correct results, and is the
    default for `build_site()`. It installs the package into a temporary
    library, and runs examples/articles in a new process.

* `build_reference()` no longer runs `devtools::document()` (#1079) and
  `build_home()` no longer re-builds `README.Rmd` or `index.Rmd`. This makes 
  the scope of responsibility of pkgdown more clear: it now only 
  creates/modifies files in `doc/`.

* `build_home()` now strips quotes from `Title` and `Description` fields 
  when generating page metadata. Additionally, you can now override the 
  defaults via the `title` and `description` fields in the `home` section of 
  `_pkgdown.yml` (#957, @maelle).

* `vignette("linking")` describes how pkgdown's automatic linking works, and
  how to ensure that cross-package links point to the right place.

## Bug fixes and minor improvements

### Rd translation

* `\examples{}` rendering has been completely overhauled so it now first 
  converts the entire mixed Rd-R block to R prior, and then evaluates the
  whole thing. This considerably improves the fidelity of the translation 
  at a small cost of no longer being able to remove `\donttest{}` and
  friends (#1087).

* `\item{}`s in `\describe{}` containing whitespace are translated correctly
  (#1117).

* `\dots` and `\ldots` are translated to `...` instead of the ellipsis,
  since they're often found in code (#1114).

* `\tabular{}` translation handles code better (@mitchelloharawild, #978).

* `\subsection{}` contents are now treated as paragraphs, not inline text 
  (#991).

* `\preformatted{}` blocks preserve important whitespace (#951).

### Front end

* Links to online documentation for functions in code chunks are no longer 
  displayed when printing (#1135, @bisaloo).

* Updated fontawesome to v5.7.1. fontawesome 5 [deprecated the `fa` prefix](https://fontawesome.com/how-to-use/on-the-web/setup/upgrading-from-version-4#changes).
  If you have used custom icons in your navbar, you'll should update them from
  (e.g.) `fa fa-home` to `fas fa-home`. Brands now have a separate prefix so
  `fa fa-github` becomes `fab fa-github` (#953).

* The navbar is now automatically hidden with 
  [headroom.js](https://wicky.nillia.ms/headroom.js/).

* The sticky behaviour of the navbar is now implemented in pure CSS instead of 
  relying a the 3rd party javascript library (#1016, @bisaloo)

* Favicons are now automatically built from a package logo (#949).

### Linking

* Infix operators (e.g., `%in%` and `%*%`) are now linked to their 
  documentation (#1082).

* Function names can now be included in headers without spurious auto-linking 
  (#948).

* Links to external documentation now point to [rdrr.io](https://rdrr.io) 
  (#998).

### Other

* News page recognises more version specifications (including the  
  "(development version)" now used by usethis) (#980).

* Subdirectories are supported for assets (#939, @ijlyttle).

* A default 404 page (`404.html`) is built, unless a custom `.github/404.md` 
  is provided (#947).

* `build_article()` now uses the raw vignette title as page `<title>` 
  and `og:title` (@maelle, #1037).

* `build_home()` now looks for license files spelled either as LICENSE or 
  LICENCE (#972).

* `build_home()` can find badges in paragraph coming after the comment 
  `<!-- badges: start -->` (#670, @gaborcsardi, @maelle).

* `build_home()` will add a community section to the sidebar if there is either 
  a code of  conduct (`.github/CODE_OF_CONDUCT.md`) or a contributing guide 
  (`.github/CONTRIBUTING.md`) (#1044, @maelle).

* `build_reference()` gains a `topics` argument which allows you to re-build
  only specified topics.

* `build_site(new_process = TRUE)` gains a timeout, 
  `options(pkgdown.timeout = 10)`, that can be used to prevent stalled 
  builds. 

* `deploy_site_github(install = FALSE)` makes it possible to opt out of 
  installation.

* `dev_mode()` now recognises `0.1.9000` as a development version of a package
  (this is an emerging standard we use for packages with backward incompatible
  changes) (#1101).

# pkgdown 1.3.0

* Restore accidentally deleted `build_logo()` function so that logos
  are once more copied to the website.

* Fix to `pkgdown.css` so page header has correct amount of top margin.

* `content-home.html` template is no longer used when the homepage
  is an `.Rmd` (Reverts #834. Fixes #927, #929)

* `deploy_site_github()` now passes parameters to `build_site()` 
  (@noamross, #922), and the documentation gives slightly better advice.

* Correct off-by-one error in navbar highlighting javascript; now no navbar
  is highlighted if none match the current path (#911).

* Tweaking of HTML table classes was fixed (@yonicd, #912)

* Restore accidentally removed `docsearch.css` file.

# pkgdown 1.2.0

## New features

* `deploy_site_github()` can be used from continuous integration systems
  (like travis) to automatically deploy your package website to GitHub Pages.
  See documentation for how to set up details (@jimhester).

* `build_favicon()` creates high resolution favicons from the package logo,
  and saves them in `pkgdown/`. They are created using the 
  <http://realfavicongenerator.net> API, and are better suited for modern web 
  usage (e.g. retina display screens, desktop shortcuts, etc.). This also 
  removes the dependency on the magick package, making automated deployment
  a little easier (@bisaloo, #883).

* Users with limited internet connectivity can explicitly disable internet
  usage by pkgdown by setting `options(pkgdown.internet = FALSE)` (#774, #877).

## Improvements to Rd translation

* `rd2html()` is now exported to facilitate creation of translation reprexes.

* `\Sexpr{}` conversion supports multiple arguments, eliminating 
  `x must be a string or a R connection` errors when using `\doi{}` (#738).

* `\tabular{}` conversion better handles empty cells (#780).

* `\usage{}` now supports qualified functions eliminating  
  `Error in fun_info(x) : Unknown call: ::` errors (#795).

* Invalid tags now generate more informative errors (@BarkleyBG, #771, #891)

## Front end

* The default footer now displays the version of pkgdown used to build 
  the site (#876). 

* All third party resources are now fetched from a single CDN and are
  give a SRI hash (@bisaloo, #893).
  
* The navbar version now has class "version" so you can more easily control 
  its display (#680).

* The default css has been tweaked to ensure that icons are visible on all
  browsers (#852).

## Bug fixes and minor improvements

### Home page

* Can now build sites for older packages that don't have a `Authors@R` field 
  (#727).

* Remote urls ending in `.md` are no longer tweaked to end in `.html` (#763).

* Bug report link is only shown if there's a "BugReports" field (#855).

* `content-home.html` template is now used when the homepage is an `.Rmd` 
  (@goldingn, #787).

* A link to the source `inst/CITATION` was added to the authors page (#714).

### News

* Uses stricter regular expression when linking to GitHub authors (#902).

### Reference

* Unexported functions and test helpers are no longer loaded (#789).
  
* Selectors that do not match topics now generate a warning. If none of the 
  specified selectors have a match, no topics are selected (#728).

### Articles

* The display depth of vignette tables of contents can be configured by 
  setting `toc: depth` in `_pkgdown.yml` (#821):

  ```yaml
  toc:
    depth: 2
  ```

### Overall site

* `init_site()` now creates a CNAME file if one doesn't already exist and the
  site's metadata includes a `url` field.

* `build_site()` loses vestigal `mathjax` parameter. This didn't appear to do 
  anything and  no one could remember why it existed (#785).

* `build_site()` now uses colours even if `new_process = TRUE` (@jimhester).

# pkgdown 1.1.0

## New features

* `build_reference()` and `build_site()` get new `document` argument. When 
  `TRUE`, the default, will automatically run `devtools::document()` to 
  ensure that your documentation is up to date.

* `build_site()` gains a `new_process` argument, which defaults to `TRUE`.
  This will run pkgdown in a separate process, and is recommended practice
  because it improves reproducibility (#647).

* Improved display for icons: icons must be 30px and stored in top-level 
  `icons/` directory. They are embedded in a separate column of reference 
  index table, instead of being inside a comment (!) (#607).
  
## Front end

* Added a keyboard shortcut for searching. Press `shift` + `/` (`?`) to move 
  focus to the search bar (#642). 
  
* The Algolia logo is correctly shown in the search results (#673).
 
* Navbar active tab highlighting uses a superior approach (suggested by 
  @jcheng5) which should mean that the active page is correctly highlighted
  in all scenarios (#660).

* `pkgdown.js` is better isolated so it should still work even if you 
  load html widgets that import a different version of jquery (#655).

## Improvements to Rd translation

* `vignette()` calls that don't link to existing vignettes silently fail 
  to link instead of generating an uninformative error messages (#652). 
  Automatic linking works for re-exported objects that are not functions 
  (@gaborcsardi, #666).

* Empty `\section{}`s are ignored (#656). Previously, empty sections caused 
  error `Error in rep(TRUE, length(x) - 1)`.

* `\Sexpr{}` supports `results=text`, `results=Rd` and `results=hide` (#651).

* `\tabular{}` no longer requires a terminal `\cr` (#664, #645).

## Minor bug fixes and improvements

* Add `inst/pkgdown.yml` as a possible site configuration file so that packages 
  on CRAN can be built without needing the development version (#662).

* Default navbar template now uses site title, not package name (the package 
  name is the default title, so this will not affect most sites) (#654).

* You can suppress indexing by search engines by setting `noindex: true` 
  `pkgdown.yml` (#686)
  
    ```yaml
    template:
      params:
        noindex: true
    ```

* `build_article()` sets `IN_PKGDOWN` env var so `in_pkgdown()` works 
  (#650).

* `build_home()`: CITATION files with non-UTF-8 encodings (latin1) work
  correctly, instead of generating an error. For non-UTF-8 locales, ensure you 
  have e.g. `Encoding: latin1` in your `DESCRIPTION`; but best practice is to 
  re-enode your CITATION file to UTF-8 (#689).

* `build_home()`: Markdown files (e.g., `CODE_OF_CONDUCT.md`) stored in 
  `.github/` are copied and linked correctly (#682).

* `build_news()`: Multi-page changelogs (generated from `NEWS.md` with
  `news: one_page: false` in `_pkgdown.yml`) are rendered correctly.

* `build_reference()`: reference index shows infix functions (like `%+%`) as 
  `` `%+%` ``, not `` `%+%`() `` on  (#659).

# pkgdown 1.0.0

* Major refactoring of path handling. `build_` functions no longer take
  `path` or `depth` arguments. Instead, set the `destination` directory 
  at the top level of `pkgdown.yml`.

* Similarly, `build_news()` no longer takes a `one_page` argument;
  this should now be specified in the `_pkgdown.yml` instead. See the 
  documentation for an example.