Add at__BINDER_ROOT_URL__ macro to expand to a binder link, fixes #46.

docs/make.jl

@@ -33,6 +33,7 @@ end
 
 
 makedocs(
+    format = Documenter.HTML(prettyurls = get(ENV, "CI", nothing) == "true"),
     modules = [Literate],
     sitename = "Literate.jl",
     pages = Any[

docs/src/fileformat.md

@@ -108,3 +108,15 @@ The following convenience "macros" are always expanded:
   where `folder` is the folder that `Documenter.deploydocs` deploys too.
   This can be used if you want a link that opens the generated notebook in
   [http://nbviewer.jupyter.org/](http://nbviewer.jupyter.org/).
+
+- `@__BINDER_ROOT_URL__`
+
+  expands to
+  `https://mybinder.org/v2/gh/$(ENV["TRAVIS_REPO_SLUG"])/$(branch)?filepath=$(folder)/`
+  where `branch`/`folder` is the branch and folder where `Documenter.deploydocs`
+  deploys too. This can be used if you want a link that opens the generated notebook in
+  [https://mybinder.org/](https://mybinder.org/).
+  To add a binder-badge in e.g. the HTML output you can use:
+  ```
+  [![Binder](https://mybinder.org/badge_logo.svg)](@__BINDER_ROOT_URL__path/to/notebook.inpynb)
+  ```

examples/example.jl

@@ -1,13 +1,19 @@
 # # **7.** Example
 #
+#md # [![](https://mybinder.org/badge_logo.svg)](@__BINDER_ROOT_URL__generated/example.inpynb)
+#md # [![](https://img.shields.io/badge/show-nbviewer-579ACA.svg)](@__NBVIEWER_ROOT_URL__generated/example.ipynb)
+#
 # This is an example generated with Literate based on this
 # source file: [`example.jl`](@__REPO_ROOT_URL__examples/example.jl).
 # You are seeing the
-#md # html-output which Documenter have generated based on a markdown
+#md # HTML-output which Documenter have generated based on a markdown
 #md # file generated with Literate. The corresponding notebook
-#md # can be found here: [`example.ipynb`](@__NBVIEWER_ROOT_URL__generated/example.ipynb),
+#md # can be viewed in [nbviewer](http://nbviewer.jupyter.org/) here:
-#nb # generated notebook output. The corresponding markdown (html) output
+#md # [`example.ipynb`](@__NBVIEWER_ROOT_URL__generated/example.ipynb),
-#nb # can be found here: [`example.html`](https://fredrikekre.github.io/Literate.jl/latest/generated/example.html),
+#md # and opened in [binder](https://mybinder.org/) here:
+#md # [`example.ipynb`](@__BINDER_ROOT_URL__generated/example.ipynb),
+#nb # generated notebook output. The corresponding markdown (HTML) output
+#nb # can be found here: [`example.html`](https://fredrikekre.github.io/Literate.jl/dev/generated/example.html),
 # and the plain script output can be found here: [`example.jl`](./example.jl).
 
 # It is recommended to have the [source file](@__REPO_ROOT_URL__examples/example.jl)

src/Literate.jl

@@ -182,10 +182,14 @@ function replace_default(content, sym;
     repo_root_url = "https://github.com/$(travis_repo_slug)/blob/$(commit)/"
     push!(repls, "@__REPO_ROOT_URL__" => repo_root_url)
 
-    ## replace @__NBVIEWER_ROOT_URL__ to latest or version directory
+    ## replace @__NBVIEWER_ROOT_URL__ to dev or version directory
     nbviewer_root_url = "https://nbviewer.jupyter.org/github/$(travis_repo_slug)/blob/$(branch)/$(folder)/"
     push!(repls, "@__NBVIEWER_ROOT_URL__" => nbviewer_root_url)
 
+    ## replace $__BINDER_ROOT_URL__ to dev or version directory
+    binder_root_url = "https://mybinder.org/v2/gh/$(travis_repo_slug)/$(branch)?filepath=$(folder)/"
+    push!(repls, "@__BINDER_ROOT_URL__" => binder_root_url)
+
     if get(ENV, "HAS_JOSH_K_SEAL_OF_APPROVAL", "") != "true"
         @info "not running on Travis, skipping links will not be correct."
     end