diff --git a/defaults/gitlab-ci.yml b/defaults/gitlab-ci.yml
index 16515fc..d9f965d 100644
--- a/defaults/gitlab-ci.yml
+++ b/defaults/gitlab-ci.yml
@@ -1,32 +1,40 @@
+.definitions:
+  script: &script
+    script:
+      - julia --project=@. -e '
+          using Pkg;
+          Pkg.build();
+          Pkg.test({{#HAS_COVERAGE}}; coverage=true{{/HAS_COVERAGE}});'
+{{#HAS_COVERAGE}}
+  coverage: &coverage
+    coverage: /Test coverage (\d+\.\d+%)/
+    after_script:
+      - julia -e '
+          using Pkg;
+          Pkg.add("Coverage");
+          using Coverage;
+          c, t = get_summary(process_folder());
+          using Printf;
+          @printf "Test coverage %.2f%%\n" 100c / t;'
+{{/HAS_COVERAGE}}
 {{#VERSIONS}}
 Julia {{.}}:
   image: julia:{{.}}
-  script: julia --project=@. -e '
-    using Pkg;
-    Pkg.build();
-    Pkg.test({{#HAS_COVERAGE}}coverage=true{{/HAS_COVERAGE}});'
+  <<: *script
+  {{#HAS_COVERAGE}}
+  <<: *coverage
+  {{/HAS_COVERAGE}}
 {{/VERSIONS}}
-{{#HAS_COVERAGE}}
-  coverage: /Test Coverage (\d+\.\d+%)/
-  after_script:
-    - julia -e '
-        using Pkg;
-        Pkg.add("Coverage");
-        using Coverage;
-        c, t = get_summary(process_folder());
-        using Printf;
-        @printf "Test Coverage %.2f%%\n" 100c/t;'
-{{/HAS_COVERAGE}}
 {{#HAS_DOCUMENTER}}
 pages:
   image: julia:{{VERSION}}
   stage: deploy
   script:
     - julia --project=docs -e '
-          using Pkg;
-          Pkg.develop(PackageSpec(; path=pwd()));
-          Pkg.instantiate();
-          include("docs/make.jl");'
+        using Pkg;
+        Pkg.develop(PackageSpec(; path=pwd()));
+        Pkg.instantiate();
+        include("docs/make.jl");'
     - mkdir -p public
     - mv docs/build public/dev
   artifacts:
diff --git a/src/plugins/ci.jl b/src/plugins/ci.jl
index d084a89..e83c1c6 100644
--- a/src/plugins/ci.jl
+++ b/src/plugins/ci.jl
@@ -7,7 +7,7 @@ format_version(v::AbstractString) = string(v)
 
 function collect_versions(t::Template, versions::Vector)
     vs = map(format_version, [t.julia_version, versions...])
-    return unique(sort(vs))
+    return sort(unique(vs))
 end
 
 @with_kw struct TravisCI <: BasicPlugin
@@ -128,9 +128,9 @@ end
 
 @with_kw struct GitLabCI <: BasicPlugin
     file::String = default_file("gitlab-ci.yml")
-    documentation::Bool = true
     coverage::Bool = true
-    extra_versions::VersionsOrStrings = ["1.0"]  # Nightly has no Docker image.
+    # Nightly has no Docker image.
+    extra_versions::VersionsOrStrings = [VERSION, default_version()]
 end
 
 gitignore(p::GitLabCI) = p.coverage ? COVERAGE_GITIGNORE : String[]
diff --git a/src/plugins/documenter.jl b/src/plugins/documenter.jl
index 095a334..70c5618 100644
--- a/src/plugins/documenter.jl
+++ b/src/plugins/documenter.jl
@@ -32,14 +32,14 @@ struct Documenter{T<:Union{TravisCI, GitLabCI, Nothing}} <: Plugin
     index_md::String
 
     # Can't use @with_kw due to some weird precompilation issues.
-    function Documenter{T}(
+    function Documenter{T}(;
         assets::Vector{<:AbstractString}=String[],
         makedocs_kwargs::Dict{Symbol}=Dict{Symbol, Any}(),
-        canonical_url::Union{Function, Nothing}=T === TravisCI ? github_pages_url : nothing,
-        index_md::AbstractString=default_file("index.md"),
+        canonical_url::Union{Function, Nothing}=make_canonical(T),
         make_jl::AbstractString=default_file("make.jl"),
+        index_md::AbstractString=default_file("index.md"),
     ) where T <: Union{TravisCI, GitLabCI, Nothing}
-        return new(assets, makedocs_kwargs, canonical_url, index_md, make_jl)
+        return new(assets, makedocs_kwargs, canonical_url, make_jl, index_md)
     end
 end
 
@@ -71,7 +71,7 @@ view(p::Documenter, t::Template, pkg::AbstractString) = Dict(
     "AUTHORS" => join(t.authors, ", "),
     "CANONICAL" => p.canonical_url === nothing ? nothing : p.canonical_url(t, pkg),
     "HAS_ASSETS" => !isempty(p.assets),
-    "MAKEDOCS_KWARGS" => map((k, v) -> k => repr(v), collect(p.makedocs_kwargs)),
+    "MAKEDOCS_KWARGS" => map(((k, v),) -> k => repr(v), collect(p.makedocs_kwargs)),
     "PKG" => pkg,
     "REPO" => "$(t.host)/$(t.user)/$pkg.jl",
     "USER" => t.user,
@@ -107,32 +107,9 @@ function gen_plugin(p::Documenter, t::Template, pkg_dir::AbstractString)
     end
 end
 
-function interactive(::Type{Documenter{T}}) where T
-    name = "Documenter{$T}"
-
-    print("$name: Enter any Documenter asset files (separated by spaces) [none]: ")
-    assets = split(readline())
-
-    print("$name: Enter any extra makedocs key-value pairs (joined by '=') [none]\n> ")
-    kwargs = Dict{Symbol, Any}()
-    line = map(split(readline())) do kv
-        k, v = split(kv, "="; limit=2)
-        kwargs[Symbol(k)] = eval(Meta.parse(v))
-    end
-
-    return Documenter{T}(; assets=assets, kwargs=kwargs)
-end
-
-function interactive(::Type{Documenter})
-    types = Dict(
-        "None (local documentation only)" => Nothing,
-        "TravisCI (GitHub Pages)" => TravisCI,
-        "GitLabCI (GitLab Pages)" => GitLabCI,
-    )
-    options = collect(keys(types))
-    menu = RadioMenu(options)
-    T = types[options[request("Documenter: Select integration:", menu)]]
-    return interactive(Documenter{T})
-end
-
 github_pages_url(t::Template, pkg::AbstractString) = "https://$(t.user).github.io/$pkg.jl"
+gitlab_pages_url(t::Template, pkg::AbstractString) = "https://$(t.user).gitlab.io/$pkg.jl"
+
+make_canonical(::Type{TravisCI}) = github_pages_url
+make_canonical(::Type{GitLabCI}) = gitlab_pages_url
+make_canonical(::Type{Nothing}) = nothing
diff --git a/test/fixtures/AllPlugins/.gitlab-ci.yml.txt b/test/fixtures/AllPlugins/.gitlab-ci.yml.txt
index a64c045..44d9d34 100644
--- a/test/fixtures/AllPlugins/.gitlab-ci.yml.txt
+++ b/test/fixtures/AllPlugins/.gitlab-ci.yml.txt
@@ -1,15 +1,25 @@
+.definitions:
+  script: &script
+    script:
+      - julia --project=@. -e '
+          using Pkg;
+          Pkg.build();
+          Pkg.test(; coverage=true);'
+  coverage: &coverage
+    coverage: /Test coverage (\d+\.\d+%)/
+    after_script:
+      - julia -e '
+          using Pkg;
+          Pkg.add("Coverage");
+          using Coverage;
+          c, t = get_summary(process_folder());
+          using Printf;
+          @printf "Test coverage %.2f%%\n" 100c / t;'
 Julia 1.0:
   image: julia:1.0
-  script: julia --project=@. -e '
-    using Pkg;
-    Pkg.build();
-    Pkg.test(coverage=true);'
-  coverage: /Test Coverage (\d+\.\d+%)/
-  after_script:
-    - julia -e '
-        using Pkgl
-        Pkg.add("Coverage");
-        using Coverage;
-        c, t = get_summary(process_folder());
-        using Printf;
-        @printf "Test Coverage %.2f%%\n" 100c/t;'
+  <<: *script
+  <<: *coverage
+Julia 1.2:
+  image: julia:1.2
+  <<: *script
+  <<: *coverage
diff --git a/test/fixtures/AllPlugins/docs/make.jl.txt b/test/fixtures/AllPlugins/docs/make.jl.txt
index 744bc7e..4141053 100644
--- a/test/fixtures/AllPlugins/docs/make.jl.txt
+++ b/test/fixtures/AllPlugins/docs/make.jl.txt
@@ -1,8 +1,15 @@
-# AllPlugins
+using AllPlugins
+using Documenter
 
-```@index
-```
-
-```@autodocs
-Modules = [AllPlugins]
-```
+makedocs(;
+    modules=[AllPlugins],
+    authors="tester",
+    repo="https://github.com/tester/AllPlugins.jl/blob/{commit}{path}#L{line}",
+    sitename="AllPlugins.jl",
+    format=Documenter.HTML(;
+        assets=String[],
+    ),
+    pages=[
+        "Home" => "index.md",
+    ],
+)
diff --git a/test/fixtures/AllPlugins/docs/src/index.md.txt b/test/fixtures/AllPlugins/docs/src/index.md.txt
index 4141053..744bc7e 100644
--- a/test/fixtures/AllPlugins/docs/src/index.md.txt
+++ b/test/fixtures/AllPlugins/docs/src/index.md.txt
@@ -1,15 +1,8 @@
-using AllPlugins
-using Documenter
+# AllPlugins
 
-makedocs(;
-    modules=[AllPlugins],
-    authors="tester",
-    repo="https://github.com/tester/AllPlugins.jl/blob/{commit}{path}#L{line}",
-    sitename="AllPlugins.jl",
-    format=Documenter.HTML(;
-        assets=String[],
-    ),
-    pages=[
-        "Home" => "index.md",
-    ],
-)
+```@index
+```
+
+```@autodocs
+Modules = [AllPlugins]
+```
diff --git a/test/generate.jl b/test/generate.jl
index 1fada75..bd31ea5 100644
--- a/test/generate.jl
+++ b/test/generate.jl
@@ -10,7 +10,7 @@ function test_all(pkg::AbstractString; kwargs...)
     t(pkg)
     try
         foreach(readlines(`git -C $pkg_dir ls-files`)) do f
-            # All fixture files are .txt so that ReferenceTests can't handle them.
+            # All fixture files are .txt so that ReferenceTests can handle them.
             reference = joinpath(@__DIR__, "fixtures", pkg, f * ".txt")
             observed = read(joinpath(pkg_dir, f), String)
             @test_reference reference observed
diff --git a/test/runtests.jl b/test/runtests.jl
index 304a311..5d97feb 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -7,7 +7,6 @@ using ReferenceTests: @test_reference
 using PkgTemplates
 const PT = PkgTemplates
 
-const PKG = "TestPkg"
 const USER = "tester"
 
 Random.seed!(1)
@@ -21,7 +20,7 @@ tpl(; kwargs...) = Template(; user=USER, kwargs...)
         try
             include("template.jl")
 
-            # Some plugins use the current Julia version in their output,
+            # Quite a bit of output depends on the Julia version,
             # and the test fixtures are generated with Julia 1.2.
             if VERSION.major == 1 && VERSION.minor == 2
                 include("generate.jl")