diff --git a/src/PkgTemplates.jl b/src/PkgTemplates.jl
index 8b07bfb..0bb515f 100644
--- a/src/PkgTemplates.jl
+++ b/src/PkgTemplates.jl
@@ -4,17 +4,20 @@ using AutoHashEquals
 using Mustache
 using URIParser
 
-export generate, show_license, Template, GitHubPages, AppVeyor, TravisCI, CodeCov
+export generate, show_license, Template, GitHubPages, AppVeyor, TravisCI,
+    CodeCov, Coveralls
 
 abstract type Plugin end
 
 include("license.jl")
 include("template.jl")
 include("generate.jl")
+include("plugin.jl")
 include(joinpath("plugins", "documenter.jl"))
+include(joinpath("plugins", "coveralls.jl"))
 include(joinpath("plugins", "appveyor.jl"))
 include(joinpath("plugins", "codecov.jl"))
-include(joinpath("plugins", "travis.jl"))
+include(joinpath("plugins", "travisci.jl"))
 include(joinpath("plugins", "githubpages.jl"))
 
 
@@ -30,6 +33,6 @@ const LICENSES = Dict(
     "LGPL-2.1+" => "Lesser GNU Public License, Version 2.1+",
     "LGPL-3.0+" => "Lesser GNU Public License, Version 3.0+"
 )
-const BADGE_ORDER = [GitHubPages, TravisCI, AppVeyor, CodeCov]
+const BADGE_ORDER = [GitHubPages, TravisCI, AppVeyor, CodeCov, Coveralls]
 
 end
diff --git a/src/generate.jl b/src/generate.jl
index 94e47e7..b784310 100644
--- a/src/generate.jl
+++ b/src/generate.jl
@@ -120,9 +120,12 @@ Returns an array of generated file/directory names.
 """
 function gen_gitignore(pkg_name::AbstractString, template::Template)
     text = ".DS_Store\n"
-    for plugin in values(template.plugins)
-        if !isempty(plugin.gitignore_files)
-            text *= join(plugin.gitignore_files, "\n") * "\n"
+    seen = []
+    patterns = vcat([plugin.gitignore for plugin in values(template.plugins)]...)
+    for pattern in patterns
+        if !in(pattern, seen)
+            text *= "$pattern\n"
+            push!(seen, pattern)
         end
     end
 
@@ -262,8 +265,8 @@ end
 """
     substitute(
         template::AbstractString,
-        pkg_name::AbstractString,
         pkg_template::Template;
+        pkg_name::AbstractString,
         view::Dict{String, Any}=Dict{String, Any}(),
     ) -> String
 
@@ -271,22 +274,23 @@ Replace placeholders in `template`. The input string is not modified.
 
 # Arguments:
 * `template::AbstractString`: Template string to make replacements in.
-* `pkg_name::AbstractString`: Name of the package being created.
 * `pkg_template::Template`: The package template in use.
+* `pkg_name::AbstractString`: Name of the package being created.
 * `view::Dict{String, Any}=Dict{String, Any}()`: Additional values to be substituted.
 
 Returns the text with substitutions applied.
 """
 function substitute(
     template::AbstractString,
-    pkg_name::AbstractString,
-    pkg_template::Template;
+    pkg_template::Template,
+    pkg_name::AbstractString;
     view::Dict{String, Any}=Dict{String, Any}(),
 )
-    # Don't use version_floor here because we don't want the trailing '-' on prereleases.
     d = merge!(Dict{String, Any}(), view)
     d["PKGNAME"] = pkg_name
+    d["USER"] = pkg_template.user
     v = pkg_template.julia_version
+    # Don't use version_floor here because we don't want the trailing '-' on prereleases.
     d["VERSION"] = "$(v.major).$(v.minor)"
     # d["AFTER"] is true whenever something needs to occur in a CI "after_script".
     if any(isa(p, Documenter) for p in values(pkg_template.plugins))
@@ -299,3 +303,30 @@ function substitute(
     end
     return render(template, d)
 end
+
+"""
+    substitute(
+        template::AbstractString,
+        pkg_plugin::Plugin;
+        pkg_name::AbstractString,
+        view::Dict{String, Any}=Dict{String, Any}(),
+    ) -> String
+
+Replace placeholders in `template`. The input string is not modified.
+
+# Arguments:
+* `template::AbstractString`: Template string to make replacements in.
+* `pkg_plugin::Plugin`: The plugin in use.
+* `pkg_name::AbstractString`: Name of the package being created.
+* `view::Dict{String, Any}=Dict{String, Any}()`: Additional values to be substituted.
+
+Returns the text with substitutions applied.
+"""
+function substitute(
+    template::AbstractString,
+    pkg_plugin::Plugin,
+    pkg_name::AbstractString;
+    view::Dict{String, Any}=Dict{String, Any}(),
+)
+    return render(template, merge(Dict("PKGNAME" => pkg_name), view))
+end
diff --git a/src/plugin.jl b/src/plugin.jl
new file mode 100644
index 0000000..401ccc9
--- /dev/null
+++ b/src/plugin.jl
@@ -0,0 +1,54 @@
+abstract type GenericPlugin <: Plugin end
+abstract type CustomPlugin <: Plugin end
+
+"""
+    badges(\_::Plugin, user::AbstractString, pkg_name::AbstractString)
+
+Generate Markdown badges for the current package.
+
+# Arguments
+* `plugin::Plugin`: Plugin whose badges we are generating.
+* `user::AbstractString`: Username of the package creator.
+* `pkg_name::AbstractString`: Name of the package.
+
+Returns an array of Markdown badges.
+"""
+badges(plugin::Plugin, user::AbstractString, pkg_name::AbstractString) = String[]
+
+function badges(plugin::GenericPlugin, user::AbstractString, pkg_name::AbstractString)
+    return substitute.(
+        plugin.badges,
+        plugin,
+        pkg_name;
+        view=Dict{String, Any}("USER" => user)
+    )
+end
+
+"""
+    gen_plugin(plugin::Plugin, template::Template, pkg_name::AbstractString) -> Vector{String}
+
+Generate any files associated with a plugin.
+
+# Arguments
+* `plugin::Plugin`: Plugin whose files are being generated.
+* `template::Template`: Template configuration.
+* `pkg_name::AbstractString`: Name of the package.
+
+Returns an array of generated file/directory names.
+"""
+gen_plugin(plugin::Plugin, template::Template, pkg_name::AbstractString) = String[]
+
+function gen_plugin(plugin::GenericPlugin, template::Template, pkg_name::AbstractString)
+    try
+        text = substitute(
+            readstring(get(plugin.src)),
+            template,
+            pkg_name;
+            view=plugin.view,
+        )
+        gen_file(joinpath(template.temp_dir, pkg_name, plugin.dest), text)
+        return [plugin.dest]
+    catch
+        return String[]
+    end
+end
diff --git a/src/plugins/appveyor.jl b/src/plugins/appveyor.jl
index 8184eba..143189d 100644
--- a/src/plugins/appveyor.jl
+++ b/src/plugins/appveyor.jl
@@ -1,64 +1,33 @@
 """
-    AppVeyor(; config_file::Union{AbstractString, Void}="") -> AppVeyor
+    AppVeyor(; config_file::Union{AbstractString, Void}="") -> GenericPlugin
 
 Add AppVeyor to a template's plugins to add AppVeyor CI support.
 
 # Keyword Arguments
 * `config_file::Union{AbstractString, Void}=""`: Path to a custom `.appveyor.yml`.
-  If `nothing` is supplied, then no file will be generated.
+  If `nothing` is supplied, no file will be generated.
 """
-@auto_hash_equals struct AppVeyor <: Plugin
-    gitignore_files::Vector{AbstractString}
-    config_file::Union{AbstractString, Void}
+@auto_hash_equals struct AppVeyor <: GenericPlugin
+    gitignore::Vector{AbstractString}
+    src::Nullable{AbstractString}
+    dest::AbstractString
+    badges::Vector{AbstractString}
+    view::Dict{String, Any}
 
     function AppVeyor(; config_file::Union{AbstractString, Void}="")
         if config_file != nothing
             if isempty(config_file)
                 config_file = joinpath(DEFAULTS_DIR, "appveyor.yml")
-            end
-            if !isfile(config_file)
+            elseif !isfile(config_file)
                 throw(ArgumentError("File $(abspath(config_file)) does not exist"))
             end
         end
-        new(AbstractString[], config_file)
+        new(
+            [],
+            config_file,
+            ".appveyor.yml",
+            ["[![Build Status](https://ci.appveyor.com/api/projects/status/github/{{USER}}/{{PKGNAME}}.jl?svg=true)](https://ci.appveyor.com/project/{{USER}}/{{PKGNAME}}-jl)"],
+            Dict{String, Any}(),
+        )
     end
 end
-
-"""
-    badges(\_::AppVeyor, user::AbstractString, pkg_name::AbstractString) -> Vector{String}
-
-Generate Markdown badges for the current package.
-
-# Arguments
-* `_::AppVeyor`: Plugin whose badges we are generating.
-* `user::AbstractString`: GitHub username of the package creator.
-* `pkg_name::AbstractString`: Name of the package.
-
-Returns an array of Markdown badges.
-"""
-function badges(_::AppVeyor, user::AbstractString, pkg_name::AbstractString)
-    return [
-        "[![Build Status](https://ci.appveyor.com/api/projects/status/github/$user/$pkg_name.jl?svg=true)](https://ci.appveyor.com/project/$user/$pkg_name-jl)"
-    ]
-end
-
-"""
-    gen_plugin(plugin::AppVeyor, template::Template, pkg_name::AbstractString) -> Vector{String}
-
-Generate a .appveyor.yml.
-
-# Arguments
-* `plugin::AppVeyor`: Plugin whose files are being generated.
-* `template::Template`: Template configuration and plugins.
-* `pkg_name::AbstractString`: Name of the package.
-
-Returns an array of generated file/directory names.
-"""
-function gen_plugin(plugin::AppVeyor, template::Template, pkg_name::AbstractString)
-    if plugin.config_file == nothing
-        return String[]
-    end
-    text = substitute(readstring(plugin.config_file), pkg_name, template)
-    gen_file(joinpath(template.temp_dir, pkg_name, ".appveyor.yml"), text)
-    return [".appveyor.yml"]
-end
diff --git a/src/plugins/codecov.jl b/src/plugins/codecov.jl
index 44b2a4a..2292633 100644
--- a/src/plugins/codecov.jl
+++ b/src/plugins/codecov.jl
@@ -1,64 +1,33 @@
 """
-    CodeCov(; config_file::Union{AbstractString, Void}="") -> CodeCov
+    CodeCov(; config_file::Union{AbstractString, Void}="") -> GenericPlugin
 
 Add CodeCov to a template's plugins to enable CodeCov coverage reports.
 
 # Keyword Arguments:
 * `config_file::Union{AbstractString, Void}=""`: Path to a custom `.codecov.yml`.
-  If `nothing` is supplied, then no file will be generated.
+  If `nothing` is supplied, no file will be generated.
 """
-@auto_hash_equals struct CodeCov <: Plugin
-    gitignore_files::Vector{AbstractString}
-    config_file::Union{AbstractString, Void}
+@auto_hash_equals struct CodeCov <: GenericPlugin
+    gitignore::Vector{AbstractString}
+    src::Nullable{AbstractString}
+    dest::AbstractString
+    badges::Vector{AbstractString}
+    view::Dict{String, Any}
 
     function CodeCov(; config_file::Union{AbstractString, Void}="")
         if config_file != nothing
             if isempty(config_file)
                 config_file = joinpath(DEFAULTS_DIR, "codecov.yml")
-            end
-            if !isfile(config_file)
+            elseif !isfile(config_file)
                 throw(ArgumentError("File $(abspath(config_file)) does not exist"))
             end
         end
-        new(["*.jl.cov", "*.jl.*.cov", "*.jl.mem"], config_file)
+        new(
+            ["*.jl.cov", "*.jl.*.cov", "*.jl.mem"],
+            config_file,
+            ".codecov.yml",
+            ["[![CodeCov](https://codecov.io/gh/{{USER}}/{{PKGNAME}}.jl/branch/master/graph/badge.svg)](https://codecov.io/gh/{{USER}}/{{PKGNAME}}.jl)"],
+            Dict{String, Any}(),
+        )
     end
 end
-
-"""
-    badges(\_::CodeCov, user::AbstractString, pkg_name::AbstractString) -> Vector{String}
-
-Generate Markdown badges for the current package.
-
-# Arguments
-* `_::CodeCov`: Plugin whose badges we are generating.
-* `user::AbstractString`: GitHub username of the package creator.
-* `pkg_name::AbstractString`: Name of the package.
-
-Returns an array of Markdown badges.
-"""
-function badges(_::CodeCov, user::AbstractString, pkg_name::AbstractString)
-    return [
-        "[![CodeCov](https://codecov.io/gh/$user/$pkg_name.jl/branch/master/graph/badge.svg)](https://codecov.io/gh/$user/$pkg_name.jl)"
-    ]
-end
-
-"""
-    gen_plugin(plugin::CodeCov, template::Template, pkg_name::AbstractString) -> Vector{String}
-
-Generate a .codecov.yml.
-
-# Arguments
-* `plugin::CodeCov`: Plugin whose files are being generated.
-* `template::Template`: Template configuration and plugins.
-* `pkg_name::AbstractString`: Name of the package.
-
-Returns an array of generated file/directory names.
-"""
-function gen_plugin(plugin::CodeCov, template::Template, pkg_name::AbstractString)
-    if plugin.config_file == nothing
-        return String[]
-    end
-    text = substitute(readstring(plugin.config_file), pkg_name, template)
-    gen_file(joinpath(template.temp_dir, pkg_name, ".codecov.yml"), text)
-    return [".codecov.yml"]
-end
diff --git a/src/plugins/coveralls.jl b/src/plugins/coveralls.jl
new file mode 100644
index 0000000..b715743
--- /dev/null
+++ b/src/plugins/coveralls.jl
@@ -0,0 +1,29 @@
+"""
+    Coveralls(; config_file::Union{AbstractString, Void}="") -> Coveralls
+
+Add Coveralls to a template's plugins to enable Coveralls coverage reports.
+
+# Keyword Arguments:
+* `config_file::Union{AbstractString, Void}=nothing`: Path to a custom `.coveralls.yml`.
+  If left unset, no file will be generated.
+"""
+@auto_hash_equals struct Coveralls <: GenericPlugin
+    gitignore::Vector{AbstractString}
+    src::Nullable{AbstractString}
+    dest::AbstractString
+    badges::Vector{AbstractString}
+    view::Dict{String, Any}
+
+    function Coveralls(; config_file::Union{AbstractString, Void}=nothing)
+        if config_file != nothing && !isfile(config_file)
+            throw(ArgumentError("File $(abspath(config_file)) does not exist"))
+        end
+        new(
+            ["*.jl.cov", "*.jl.*.cov", "*.jl.mem"],
+            config_file,
+            ".coveralls.yml",
+            ["[![Coveralls](https://coveralls.io/repos/github/{{USER}}/{{PKGNAME}}.jl/badge.svg?branch=master)](https://coveralls.io/github/{{USER}}/{{PKGNAME}}.jl?branch=master)"],
+            Dict{String, Any}(),
+        )
+    end
+end
diff --git a/src/plugins/documenter.jl b/src/plugins/documenter.jl
index 4f16e85..4280cb5 100644
--- a/src/plugins/documenter.jl
+++ b/src/plugins/documenter.jl
@@ -2,7 +2,7 @@
 Add a Documenter subtype to a template's plugins to add support for
 [Documenter.jl](https://github.com/JuliaDocs/Documenter.jl).
 """
-abstract type Documenter <: Plugin end
+abstract type Documenter <: CustomPlugin end
 
 """
     gen_plugin(plugin::Documenter, template::Template, pkg_name::AbstractString) -> Void
diff --git a/src/plugins/githubpages.jl b/src/plugins/githubpages.jl
index f7fc9c0..9c6eb07 100644
--- a/src/plugins/githubpages.jl
+++ b/src/plugins/githubpages.jl
@@ -7,7 +7,7 @@ Add GitHubPages to a template's plugins to add Documenter.jl support via GitHub
 * `assets::Vector{String}=String[]`: Array of paths to Documenter asset files.
 """
 @auto_hash_equals struct GitHubPages <: Documenter
-    gitignore_files::Vector{AbstractString}
+    gitignore::Vector{AbstractString}
     assets::Vector{AbstractString}
 
     function GitHubPages(; assets::Vector{String}=String[])
@@ -21,18 +21,6 @@ Add GitHubPages to a template's plugins to add Documenter.jl support via GitHub
     end
 end
 
-"""
-    badges(\_::GitHubPages, user::AbstractString, pkg_name::AbstractString) -> Vector{String}
-
-Generate Markdown badges for the current package.
-
-# Arguments
-* `_::GitHubPages`: plugin whose badges we are generating.
-* `user::AbstractString`: GitHub username of the package creator.
-* `pkg_name::AbstractString`: Name of the package.
-
-Returns an array of Markdown badges.
-"""
 function badges(_::GitHubPages, user::AbstractString, pkg_name::AbstractString)
     return [
         "[![Stable](https://img.shields.io/badge/docs-stable-blue.svg)](https://$user.github.io/$pkg_name.jl/stable)"
@@ -40,19 +28,6 @@ function badges(_::GitHubPages, user::AbstractString, pkg_name::AbstractString)
     ]
 end
 
-"""
-    gen_plugin(plugin::GitHubPages, template::Template, pkg_name::AbstractString)
-
-Generate the "docs" directory and set up direct HTML output from Documenter to be pushed
-to GitHub Pages.
-
-# Arguments
-* `plugin::GitHubPages`: Plugin whose files are being generated.
-* `template::Template`: Template configuration and plugins.
-* `pkg_name::AbstractString`: Name of the package.
-
-Returns an array of generated file/directory names.
-"""
 function gen_plugin(plugin::GitHubPages, template::Template, pkg_name::AbstractString)
     invoke(
         gen_plugin, Tuple{Documenter, Template, AbstractString},
diff --git a/src/plugins/travis.jl b/src/plugins/travis.jl
deleted file mode 100644
index b62430c..0000000
--- a/src/plugins/travis.jl
+++ /dev/null
@@ -1,64 +0,0 @@
-"""
-    TravisCI(; config_file::Union{AbstractString, Void}="") -> TravisCI
-
-Add TravisCI to a template's plugins to add Travis CI support.
-
-# Keyword Arguments:
-* `config_file::Union{AbstractString, Void}=""`: Path to a custom `.travis.yml`.
-  If `nothing` is supplied, then no file will be generated.
-"""
-@auto_hash_equals struct TravisCI <: Plugin
-    gitignore_files::Vector{AbstractString}
-    config_file::Union{AbstractString, Void}
-
-    function TravisCI(; config_file::Union{AbstractString, Void}="")
-        if config_file != nothing
-            if isempty(config_file)
-                config_file = joinpath(DEFAULTS_DIR, "travis.yml")
-            end
-            if !isfile(config_file)
-                throw(ArgumentError("File $(abspath(config_file)) does not exist"))
-            end
-        end
-        new(AbstractString[], config_file)
-    end
-end
-
-"""
-    badges(\_::TravisCI, user::AbstractString, pkg_name::AbstractString) -> Vector{String}
-
-Generate Markdown badges for the current package.
-
-# Arguments
-* `_::TravisCI`: plugin whose badges we are generating.
-* `user::AbstractString`: GitHub username of the package creator.
-* `pkg_name::AbstractString`: Name of the package.
-
-Returns an array of Markdown badges.
-"""
-function badges(_::TravisCI, user::AbstractString, pkg_name::AbstractString)
-    return [
-"[![Build Status](https://travis-ci.org/$user/$pkg_name.jl.svg?branch=master)](https://travis-ci.org/$user/$pkg_name.jl)"
-    ]
-end
-
-"""
-    gen_plugin(plugin::TravisCI, template::Template, pkg_name::AbstractString) -> Vector{String}
-
-Generate a .travis.yml.
-
-# Arguments
-* `plugin::TravisCI`: The plugin whose files are being generated.
-* `template::Template`: Template configuration and plugins.
-* `pkg_name::AbstractString`: Name of the package.
-
-Returns an array of generated file/directory names.
-"""
-function gen_plugin(plugin::TravisCI, template::Template, pkg_name::AbstractString)
-    if plugin.config_file == nothing
-        return String[]
-    end
-    text = substitute(readstring(plugin.config_file), pkg_name, template)
-    gen_file(joinpath(template.temp_dir, pkg_name, ".travis.yml"), text)
-    return [".travis.yml"]
-end
diff --git a/src/plugins/travisci.jl b/src/plugins/travisci.jl
new file mode 100644
index 0000000..a1f020e
--- /dev/null
+++ b/src/plugins/travisci.jl
@@ -0,0 +1,33 @@
+"""
+    TravisCI(; config_file::Union{AbstractString, Void}="") -> GenericPlugin
+
+Add TravisCI to a template's plugins to add Travis CI support.
+
+# Keyword Arguments:
+* `config_file::Union{AbstractString, Void}=""`: Path to a custom `.travis.yml`.
+  If `nothing` is supplied, no file will be generated.
+"""
+@auto_hash_equals struct TravisCI <: GenericPlugin
+    gitignore::Vector{AbstractString}
+    src::Nullable{AbstractString}
+    dest::AbstractString
+    badges::Vector{AbstractString}
+    view::Dict{String, Any}
+
+    function TravisCI(; config_file::Union{AbstractString, Void}="")
+        if config_file != nothing
+            if isempty(config_file)
+                config_file = joinpath(DEFAULTS_DIR, "travis.yml")
+            elseif !isfile(config_file)
+                throw(ArgumentError("File $(abspath(config_file)) does not exist"))
+            end
+        end
+        new(
+            [],
+            config_file,
+            ".travis.yml",
+            ["[![Build Status](https://travis-ci.org/{{USER}}/{{PKGNAME}}.jl.svg?branch=master)](https://travis-ci.org/{{USER}}/{{PKGNAME}}.jl)"],
+            Dict{String, Any}(),
+        )
+    end
+end
diff --git a/test/tests.jl b/test/tests.jl
index 0b00567..0946b16 100644
--- a/test/tests.jl
+++ b/test/tests.jl
@@ -83,42 +83,92 @@ write(test_file, template_text)
     rm(t.temp_dir; recursive=true)
 
     if isempty(LibGit2.getconfig("github.username", ""))
-        @test_throws ArgumentError Template()
+        @test_throws ArgumentError t = Template()
     else
         t = Template()
         rm(t.temp_dir; recursive=true)
         @test t.user == LibGit2.getconfig("github.username", "")
     end
-    @test_throws ArgumentError Template(; user="invenia", license="FakeLicense")
+    @test_throws ArgumentError t = Template(; user="invenia", license="FakeLicense")
 end
 
 @testset "Plugin creation" begin
     p = AppVeyor()
-    @test isempty(p.gitignore_files)
-    @test p.config_file == joinpath(PkgTemplates.DEFAULTS_DIR, "appveyor.yml")
+    @test isempty(p.gitignore)
+    @test get(p.src) == joinpath(PkgTemplates.DEFAULTS_DIR, "appveyor.yml")
+    @test p.dest == ".appveyor.yml"
+    @test p.badges == ["[![Build Status](https://ci.appveyor.com/api/projects/status/github/{{USER}}/{{PKGNAME}}.jl?svg=true)](https://ci.appveyor.com/project/{{USER}}/{{PKGNAME}}-jl)"]
+    @test isempty(p.view)
     p = AppVeyor(; config_file=nothing)
-    @test p.config_file == nothing
+    @test_throws NullException get(p.src)
     p = AppVeyor(; config_file=test_file)
-    @test p.config_file == test_file
-    @test_throws ArgumentError AppVeyor(; config_file=fake_path)
+    @test get(p.src) == test_file
+    @test_throws ArgumentError p = AppVeyor(; config_file=fake_path)
 
     p = TravisCI()
-    @test isempty(p.gitignore_files)
-    @test p.config_file == joinpath(PkgTemplates.DEFAULTS_DIR, "travis.yml")
+    @test isempty(p.gitignore)
+    @test get(p.src) == joinpath(PkgTemplates.DEFAULTS_DIR, "travis.yml")
+    @test p.dest == ".travis.yml"
+    @test p.badges == ["[![Build Status](https://travis-ci.org/{{USER}}/{{PKGNAME}}.jl.svg?branch=master)](https://travis-ci.org/{{USER}}/{{PKGNAME}}.jl)"]
+    @test isempty(p.view)
     p = TravisCI(; config_file=nothing)
-    @test p.config_file == nothing
+    @test_throws NullException get(p.src)
     p = TravisCI(; config_file=test_file)
-    @test p.config_file == test_file
-    @test_throws ArgumentError TravisCI(; config_file=fake_path)
+    @test get(p.src) == test_file
+    @test_throws ArgumentError p = TravisCI(; config_file=fake_path)
 
     p = CodeCov()
-    @test p.gitignore_files == ["*.jl.cov", "*.jl.*.cov", "*.jl.mem"]
-    @test p.config_file == joinpath(PkgTemplates.DEFAULTS_DIR, "codecov.yml")
+    @test p.gitignore == ["*.jl.cov", "*.jl.*.cov", "*.jl.mem"]
+    @test get(p.src) == joinpath(PkgTemplates.DEFAULTS_DIR, "codecov.yml")
+    @test p.dest == ".codecov.yml"
+    @test p.badges == ["[![CodeCov](https://codecov.io/gh/{{USER}}/{{PKGNAME}}.jl/branch/master/graph/badge.svg)](https://codecov.io/gh/{{USER}}/{{PKGNAME}}.jl)"]
+    @test isempty(p.view)
     p = CodeCov(; config_file=nothing)
-    @test p.config_file == nothing
+    @test_throws NullException get(p.src)
     p = CodeCov(; config_file=test_file)
-    @test p.config_file == test_file
-    @test_throws ArgumentError CodeCov(; config_file=fake_path)
+    @test get(p.src) == test_file
+    @test_throws ArgumentError p = CodeCov(; config_file=fake_path)
+
+    p = Coveralls()
+    @test p.gitignore == ["*.jl.cov", "*.jl.*.cov", "*.jl.mem"]
+    @test_throws NullException get(p.src)
+    @test p.dest == ".coveralls.yml"
+    @test p.badges == ["[![Coveralls](https://coveralls.io/repos/github/{{USER}}/{{PKGNAME}}.jl/badge.svg?branch=master)](https://coveralls.io/github/{{USER}}/{{PKGNAME}}.jl?branch=master)"]
+    @test isempty(p.view)
+    p = Coveralls(; config_file=nothing)
+    @test_throws NullException get(p.src)
+    p = Coveralls(; config_file=test_file)
+    @test get(p.src) == test_file
+    @test_throws ArgumentError p = Coveralls(; config_file=fake_path)
+
+    p = GitHubPages()
+    @test p.gitignore == ["/docs/build/", "/docs/site/"]
+    @test isempty(p.assets)
+    p = GitHubPages(; assets=[test_file])
+    @test p.assets == [test_file]
+    @test_throws ArgumentError p = GitHubPages(; assets=[fake_path])
+end
+
+@testset "Badge generation" begin
+    user = git_config["github.username"]
+
+    p = AppVeyor()
+    @test badges(p, user, test_pkg) == ["[![Build Status](https://ci.appveyor.com/api/projects/status/github/$user/$test_pkg.jl?svg=true)](https://ci.appveyor.com/project/$user/$test_pkg-jl)"]
+
+    p = TravisCI()
+    @test badges(p, user, test_pkg) == ["[![Build Status](https://travis-ci.org/$user/$test_pkg.jl.svg?branch=master)](https://travis-ci.org/$user/$test_pkg.jl)"]
+
+    p = CodeCov()
+    @test badges(p, user, test_pkg) == ["[![CodeCov](https://codecov.io/gh/$user/$test_pkg.jl/branch/master/graph/badge.svg)](https://codecov.io/gh/$user/$test_pkg.jl)"]
+
+    p = Coveralls()
+    @test badges(p, user, test_pkg) == ["[![Coveralls](https://coveralls.io/repos/github/$user/$test_pkg.jl/badge.svg?branch=master)](https://coveralls.io/github/$user/$test_pkg.jl?branch=master)"]
+
+    p = GitHubPages()
+    @test badges(p, user, test_pkg) ==  [
+        "[![Stable](https://img.shields.io/badge/docs-stable-blue.svg)](https://$user.github.io/$test_pkg.jl/stable)"
+        "[![Latest](https://img.shields.io/badge/docs-latest-blue.svg)](https://$user.github.io/$test_pkg.jl/latest)"
+    ]
 end
 
 @testset "File generation" begin
@@ -156,7 +206,7 @@ end
     rm(joinpath(pkg_dir, ".gitignore"))
     @test contains(gitignore, ".DS_Store")
     for p in values(t.plugins)
-        for entry in p.gitignore_files
+        for entry in p.gitignore
             @test contains(gitignore, entry)
         end
     end
@@ -201,14 +251,14 @@ end
     @test isfile(Pkg.dir(test_pkg, "REQUIRE"))
     @test isfile(Pkg.dir(test_pkg, ".gitignore"))
     @test isdir(Pkg.dir(test_pkg, "src"))
-    @test isfile(Pkg.dir(test_pkg, "src", "TestPkg.jl"))
+    @test isfile(Pkg.dir(test_pkg, "src", "$test_pkg.jl"))
     @test isdir(Pkg.dir(test_pkg, "test"))
     @test isfile(Pkg.dir(test_pkg, "test", "runtests.jl"))
     repo = LibGit2.GitRepo(Pkg.dir(test_pkg))
     remote = LibGit2.get(LibGit2.GitRemote, repo, "origin")
     branches = [LibGit2.shortname(branch[1]) for branch in LibGit2.GitBranchIter(repo)]
     @test LibGit2.getconfig(repo, "user.name", "") == LibGit2.getconfig("user.name", "")
-    @test LibGit2.url(remote) == "https://github.com/invenia/TestPkg.jl"
+    @test LibGit2.url(remote) == "https://github.com/invenia/$test_pkg.jl"
     @test in("master", branches)
     @test !in("gh-pages", branches)
     @test !LibGit2.isdirty(repo)
@@ -217,14 +267,14 @@ end
     generate(test_pkg, t; ssh=true)
     repo = LibGit2.GitRepo(Pkg.dir(test_pkg))
     remote = LibGit2.get(LibGit2.GitRemote, repo, "origin")
-    @test LibGit2.url(remote) == "git@github.com:invenia/TestPkg.jl.git"
+    @test LibGit2.url(remote) == "git@github.com:invenia/$test_pkg.jl.git"
     rm(Pkg.dir(test_pkg); recursive=true)
 
     t = Template(; user="invenia", host="gitlab.com")
     generate(test_pkg, t)
     repo = LibGit2.GitRepo(Pkg.dir(test_pkg))
     remote = LibGit2.get(LibGit2.GitRemote, repo, "origin")
-    @test LibGit2.url(remote) == "https://gitlab.com/invenia/TestPkg.jl"
+    @test LibGit2.url(remote) == "https://gitlab.com/invenia/$test_pkg.jl"
     rm(Pkg.dir(test_pkg); recursive=true)
 
     temp_dir = mktempdir()
@@ -237,7 +287,7 @@ end
         user="invenia",
         license="MIT",
         git_config=git_config,
-        plugins=[AppVeyor(), GitHubPages(), CodeCov(), TravisCI()],
+        plugins=[AppVeyor(), GitHubPages(), Coveralls(), CodeCov(), TravisCI()],
     )
     generate(test_pkg, t)
     @test isfile(Pkg.dir(test_pkg, "LICENSE"))
@@ -310,7 +360,7 @@ end
     @test isdir(joinpath(pkg_dir, "docs", "src"))
     @test isfile(joinpath(pkg_dir, "docs", "src", "index.md"))
     index = readchomp(joinpath(pkg_dir, "docs", "src", "index.md"))
-    @test index == "# TestPkg"
+    @test index == "# $test_pkg"
     rm(joinpath(pkg_dir, "docs"); recursive=true)
     p = GitHubPages(; assets=[test_file])
     @test gen_plugin(p, t, test_pkg) == ["docs/"]
@@ -345,29 +395,36 @@ end
 @testset "Mustache substitution" begin
     t = Template(; user="invenia")
     rm(t.temp_dir; recursive=true)
+    p = Coveralls()
     view = Dict{String, Any}("OTHER" => false)
 
-    text = substitute(template_text, test_pkg, t; view=view)
-    @test contains(text, "PKGNAME: TestPkg")
+    text = substitute(template_text, t, test_pkg; view=view)
+    @test contains(text, "PKGNAME: $test_pkg")
     @test contains(text, "VERSION: $(t.julia_version.major).$(t.julia_version.minor)")
     @test !contains(text, "Documenter")
     @test !contains(text, "After")
     @test !contains(text, "Other")
 
     t.plugins[GitHubPages] = GitHubPages()
-    text = substitute(template_text, test_pkg, t; view=view)
+    text = substitute(template_text, t, test_pkg; view=view)
     @test contains(text, "Documenter")
     @test contains(text, "After")
     empty!(t.plugins)
 
     t.plugins[CodeCov] = CodeCov()
-    text = substitute(template_text, test_pkg, t; view=view)
+    text = substitute(template_text, t, test_pkg; view=view)
     @test contains(text, "CodeCov")
     @test contains(text, "After")
     empty!(t.plugins)
 
     view["OTHER"] = true
-    text = substitute(template_text, test_pkg, t; view=view)
+    text = substitute(template_text, t, test_pkg; view=view)
+    @test contains(text, "Other")
+
+    text = substitute(template_text, p, test_pkg)
+    @test contains(text, "PKGNAME: $test_pkg")
+
+    text = substitute(template_text, p, test_pkg; view=view)
     @test contains(text, "Other")
 end
 
@@ -387,7 +444,7 @@ end
     end
     @test strip(mit) == strip(read_license("MIT"))
     @test strip(read_license("MIT")) == strip(readstring(joinpath(LICENSE_DIR, "MIT")))
-    @test_throws ArgumentError read_license("FakeLicense")
+    @test_throws ArgumentError read_license(fake_path)
 end
 
 rm(test_file)