Change EditURL output to use relative path (#219)

This patch changes the generated EditURl to use a relative path (source
file relative output directory) and let Documenter figure out the remote
URL instead. This is required for Documenter version 1, but works also
on older Documenter versions.

src/Literate.jl

@@ -343,9 +343,6 @@ function create_configuration(inputfile; user_config, user_kwargs, type=nothing)
         cfg["repo_root_url"] = "https://github.com/$(repo_slug)/blob/$(cfg["edit_commit"])"
         cfg["nbviewer_root_url"] = "https://nbviewer.jupyter.org/github/$(repo_slug)/blob/$(deploy_branch)/$(deploy_folder)"
         cfg["binder_root_url"] = "https://mybinder.org/v2/gh/$(repo_slug)/$(deploy_branch)?filepath=$(deploy_folder)"
-        if (dir = get(ENV, "TRAVIS_BUILD_DIR", nothing)) !== nothing
-            cfg["repo_root_path"] = dir
-        end
     elseif haskey(ENV, "GITHUB_ACTIONS")
         repo_slug = get(ENV, "GITHUB_REPOSITORY", "unknown-repository")
         deploy_folder = if get(ENV, "GITHUB_EVENT_NAME", nothing) == "push"
@@ -362,9 +359,6 @@ function create_configuration(inputfile; user_config, user_kwargs, type=nothing)
         cfg["repo_root_url"] = "https://github.com/$(repo_slug)/blob/$(cfg["edit_commit"])"
         cfg["nbviewer_root_url"] = "https://nbviewer.jupyter.org/github/$(repo_slug)/blob/$(deploy_branch)/$(deploy_folder)"
         cfg["binder_root_url"] = "https://mybinder.org/v2/gh/$(repo_slug)/$(deploy_branch)?filepath=$(deploy_folder)"
-        if (dir = get(ENV, "GITHUB_WORKSPACE", nothing)) !== nothing
-            cfg["repo_root_path"] = dir
-        end
     elseif haskey(ENV, "GITLAB_CI")
         if (url = get(ENV, "CI_PROJECT_URL", nothing)) !== nothing
             cfg["repo_root_url"] = "$(url)/blob/$(cfg["edit_commit"])"
@@ -373,9 +367,6 @@ function create_configuration(inputfile; user_config, user_kwargs, type=nothing)
            (m = match(r"https://(.+)", url)) !== nothing
             cfg["nbviewer_root_url"] = "https://nbviewer.jupyter.org/urls/$(m[1])"
         end
-        if (dir = get(ENV, "CI_PROJECT_DIR", nothing)) !== nothing
-            cfg["repo_root_path"] = dir
-        end
     end
 
     # Merge default_config with user_config
@@ -423,9 +414,6 @@ Available options:
 - `binder_root_url`: URL to the root of the repository as seen on mybinder. Determined
   automatically on Travis CI, GitHub Actions and GitLab CI.
   Used for `@__BINDER_ROOT_URL__`.
-- `repo_root_path`: Filepath to the root of the repository. Determined automatically on
-  Travis CI, GitHub Actions and GitLab CI. Used for computing
-  [Documenters `EditURL`](@ref Interaction-with-Documenter).
 - `image_formats`: A vector of `(mime, ext)` tuples, with the default
   `$(_DEFAULT_IMAGE_FORMATS)`. Results which are `showable` with a MIME type are saved with
   the first match, with the corresponding extension.
@@ -470,11 +458,11 @@ function preprocessor(inputfile, outputdir; user_config, user_kwargs, type)
     # run some Documenter specific things for markdown output
     if type === :md && isdocumenter(config)
         # change the Edit on GitHub link
-        path = relpath(inputfile, get(config, "repo_root_path", pwd())::String)
+        edit_url = relpath(inputfile, config["literate_outputdir"])
-        path = replace(path, "\\" => "/")
+        edit_url = replace(edit_url, "\\" => "/")
         content = """
         # ```@meta
-        # EditURL = "@__REPO_ROOT_URL__/$(path)"
+        # EditURL = "$(edit_url)"
         # ```
 
         """ * content

test/runtests.jl

@@ -515,7 +515,7 @@ end end
             end
             expected_markdown = """
             ```@meta
-            EditURL = "https://github.com/fredrikekre/Literate.jl/blob/master/test/$(basename(sandbox))/inputfile.jl"
+            EditURL = "../inputfile.jl"
             ```
 
             # [Example](@id example-id)
@@ -645,7 +645,7 @@ end end
             @test occursin("Link to repo root: https://github.com/fredrikekre/Literate.jl/blob/master/file.jl", markdown)
             @test occursin("Link to nbviewer: https://nbviewer.jupyter.org/github/fredrikekre/Literate.jl/blob/gh-pages/previews/PR42/file.jl", markdown)
             @test occursin("Link to binder: https://mybinder.org/v2/gh/fredrikekre/Literate.jl/gh-pages?filepath=previews/PR42/file.jl", markdown)
-            @test occursin("EditURL = \"https://github.com/fredrikekre/Literate.jl/blob/master/test/$(basename(sandbox))/inputfile.jl\"", markdown)
+            @test occursin("EditURL = \"../inputfile.jl\"", markdown)
 
             # Travis with no tag -> dev directory
             withenv(TRAVIS_ENV...,
@@ -656,7 +656,7 @@ end end
             @test occursin("Link to repo root: https://github.com/fredrikekre/Literate.jl/blob/master/file.jl", markdown)
             @test occursin("Link to nbviewer: https://nbviewer.jupyter.org/github/fredrikekre/Literate.jl/blob/gh-pages/dev/file.jl", markdown)
             @test occursin("Link to binder: https://mybinder.org/v2/gh/fredrikekre/Literate.jl/gh-pages?filepath=dev/file.jl", markdown)
-            @test occursin("EditURL = \"https://github.com/fredrikekre/Literate.jl/blob/master/test/$(basename(sandbox))/inputfile.jl\"", markdown)
+            @test occursin("EditURL = \"../inputfile.jl\"", markdown)
 
             # GitHub Actions with a tag
             withenv(ACTIONS_ENV...) do
@@ -666,7 +666,7 @@ end end
             @test occursin("Link to repo root: https://github.com/fredrikekre/Literate.jl/blob/master/file.jl", markdown)
             @test occursin("Link to nbviewer: https://nbviewer.jupyter.org/github/fredrikekre/Literate.jl/blob/gh-pages/v1.2.0/file.jl", markdown)
             @test occursin("Link to binder: https://mybinder.org/v2/gh/fredrikekre/Literate.jl/gh-pages?filepath=v1.2.0/file.jl", markdown)
-            @test occursin("EditURL = \"https://github.com/fredrikekre/Literate.jl/blob/master/test/$(basename(sandbox))/inputfile.jl\"", markdown)
+            @test occursin("EditURL = \"../inputfile.jl\"", markdown)
 
             # GitHub Actions with PR preview build
             withenv(ACTIONS_ENV...,
@@ -678,7 +678,7 @@ end end
             @test occursin("Link to repo root: https://github.com/fredrikekre/Literate.jl/blob/master/file.jl", markdown)
             @test occursin("Link to nbviewer: https://nbviewer.jupyter.org/github/fredrikekre/Literate.jl/blob/gh-pages/previews/PR42/file.jl", markdown)
             @test occursin("Link to binder: https://mybinder.org/v2/gh/fredrikekre/Literate.jl/gh-pages?filepath=previews/PR42/file.jl", markdown)
-            @test occursin("EditURL = \"https://github.com/fredrikekre/Literate.jl/blob/master/test/$(basename(sandbox))/inputfile.jl\"", markdown)
+            @test occursin("EditURL = \"../inputfile.jl\"", markdown)
 
             # GitHub Actions without a tag -> dev directory
             withenv(ACTIONS_ENV...,
@@ -689,7 +689,7 @@ end end
             @test occursin("Link to repo root: https://github.com/fredrikekre/Literate.jl/blob/master/file.jl", markdown)
             @test occursin("Link to nbviewer: https://nbviewer.jupyter.org/github/fredrikekre/Literate.jl/blob/gh-pages/dev/file.jl", markdown)
             @test occursin("Link to binder: https://mybinder.org/v2/gh/fredrikekre/Literate.jl/gh-pages?filepath=dev/file.jl", markdown)
-            @test occursin("EditURL = \"https://github.com/fredrikekre/Literate.jl/blob/master/test/$(basename(sandbox))/inputfile.jl\"", markdown)
+            @test occursin("EditURL = \"../inputfile.jl\"", markdown)
 
             # GitLab CI with GitLab Pages
             withenv(GITLAB_ENV...) do
@@ -699,7 +699,7 @@ end end
             @test occursin("Link to repo root: https://gitlab.com/fredrikekre/Literate.jl/blob/master/file.jl", markdown)
             @test occursin("Link to nbviewer: https://nbviewer.jupyter.org/urls/fredrikekre.gitlab.io/Literate.jl/file.jl", markdown)
             @test_broken occursin("Link to binder: https://mybinder.org/v2/gh/fredrikekre/Literate.jl/gh-pages?filepath=dev/file.jl", markdown)
-            @test occursin("EditURL = \"https://gitlab.com/fredrikekre/Literate.jl/blob/master/test/$(basename(sandbox))/inputfile.jl\"", markdown)
+            @test occursin("EditURL = \"../inputfile.jl\"", markdown)
 
             # building under DocumentationGenerator.jl
             withenv("DOCUMENTATIONGENERATOR" => "true",