fix compile warnings

lib/mix/tasks/pleroma/common.ex

 defmodule Mix.Tasks.Pleroma.Common do
-  @shortdoc "Common functions to be reused in mix tasks"
+  @doc "Common functions to be reused in mix tasks"
   def start_pleroma do
     Mix.Task.run("app.start")
   end

lib/mix/tasks/pleroma/instance.ex

 defmodule Mix.Tasks.Pleroma.Instance do
   use Mix.Task
-  alias Pleroma.{Repo, User}
   alias Mix.Tasks.Pleroma.Common
 
   @shortdoc "Manages Pleroma instance"

lib/mix/tasks/pleroma/relay.ex

@@ -22,7 +22,7 @@ defmodule Mix.Tasks.Pleroma.Relay do
   def run(["follow", target]) do
     Common.start_pleroma()
 
-    with {:ok, activity} <- Relay.follow(target) do
+    with {:ok, _activity} <- Relay.follow(target) do
       # put this task to sleep to allow the genserver to push out the messages
       :timer.sleep(500)
     else
@@ -33,7 +33,7 @@ def run(["follow", target]) do
   def run(["unfollow", target]) do
     Common.start_pleroma()
 
-    with {:ok, activity} <- Relay.unfollow(target) do
+    with {:ok, _activity} <- Relay.unfollow(target) do
       # put this task to sleep to allow the genserver to push out the messages
       :timer.sleep(500)
     else

lib/mix/tasks/pleroma/uploads.ex

 defmodule Mix.Tasks.Pleroma.Uploads do
   use Mix.Task
-  import Mix.Ecto
-  alias Pleroma.{Upload, Uploaders.Local, Uploaders.S3}
+  alias Pleroma.{Upload, Uploaders.Local}
   alias Mix.Tasks.Pleroma.Common
   require Logger
 
   @log_every 50
   @shortdoc "Migrate uploads from local to remote storage"
-  @longdoc """
+  @doc """
    Manages uploads
    ## Migrate uploads from local to remote storage
 
   """
-
   def run(["migrate_local", target_uploader | args]) do
     delete? = Enum.member?(args, "--delete")
     Common.start_pleroma()
@@ -59,7 +57,7 @@ def run(["migrate_local", target_uploader | args]) do
 
           File.exists?(root_path) ->
             file = Path.basename(id)
-            [hash, ext] = String.split(id, ".")
+            [hash, _ext] = String.split(id, ".")
             {%Pleroma.Upload{id: hash, name: file, path: file, tempfile: root_path}, root_path}
 
           true ->

lib/mix/tasks/pleroma/user.ex

@@ -20,7 +20,7 @@ defmodule Mix.Tasks.Pleroma.User do
   - `--admin`/`--no-admin` - whether the user is an admin
 
   ## Generate an invite link.
-    
+
       mix pleroma.user invite
 
   ## Delete the user's account.
@@ -32,7 +32,7 @@ defmodule Mix.Tasks.Pleroma.User do
       mix pleroma.user toggle_activated NICKNAME
 
   ## Unsubscribe local users from user's account and deactivate it
-     
+
       mix pleroma.user unsubscribe NICKNAME
 
   ## Create a password reset link.
@@ -235,6 +235,26 @@ def run(["set", nickname | rest]) do
     end
   end
 
+  def run(["invite"]) do
+    Common.start_pleroma()
+
+    with {:ok, token} <- Pleroma.UserInviteToken.create_token() do
+      Mix.shell().info("Generated user invite token")
+
+      url =
+        Pleroma.Web.Router.Helpers.redirect_url(
+          Pleroma.Web.Endpoint,
+          :registration_page,
+          token.token
+        )
+
+      IO.puts(url)
+    else
+      _ ->
+        Mix.shell().error("Could not create invite token.")
+    end
+  end
+
   defp set_moderator(user, value) do
     info_cng = User.Info.admin_api_update(user.info, %{is_moderator: value})
 
@@ -270,24 +290,4 @@ defp set_locked(user, value) do
 
     Mix.shell().info("Locked status of #{user.nickname}: #{user.info.locked}")
   end
-
-  def run(["invite"]) do
-    Common.start_pleroma()
-
-    with {:ok, token} <- Pleroma.UserInviteToken.create_token() do
-      Mix.shell().info("Generated user invite token")
-
-      url =
-        Pleroma.Web.Router.Helpers.redirect_url(
-          Pleroma.Web.Endpoint,
-          :registration_page,
-          token.token
-        )
-
-      IO.puts(url)
-    else
-      _ ->
-        Mix.shell().error("Could not create invite token.")
-    end
-  end
 end

lib/pleroma/application.ex

@@ -15,7 +15,6 @@ def user_agent() do
 
   # See http://elixir-lang.org/docs/stable/elixir/Application.html
   # for more information on OTP Applications
-  @env Mix.env()
   def start(_type, _args) do
     import Cachex.Spec
 

lib/pleroma/emoji.ex

@@ -165,7 +165,7 @@ defp load_from_file(file) do
 
   defp load_from_file_stream(stream) do
     stream
-    |> Stream.map(&String.strip/1)
+    |> Stream.map(&String.trim/1)
     |> Stream.map(fn line ->
       case String.split(line, ~r/,\s*/) do
         [name, file] -> {name, file}

lib/pleroma/filter.ex

 defmodule Pleroma.Filter do
   use Ecto.Schema
   import Ecto.{Changeset, Query}
-  alias Pleroma.{User, Repo, Activity}
+  alias Pleroma.{User, Repo}
 
   schema "filters" do
-    belongs_to(:user, Pleroma.User)
+    belongs_to(:user, User)
     field(:filter_id, :integer)
     field(:hide, :boolean, default: false)
     field(:whole_word, :boolean, default: true)
@@ -26,7 +26,7 @@ def get(id, %{id: user_id} = _user) do
     Repo.one(query)
   end
 
-  def get_filters(%Pleroma.User{id: user_id} = user) do
+  def get_filters(%User{id: user_id} = _user) do
     query =
       from(
         f in Pleroma.Filter,
@@ -38,9 +38,9 @@ def get_filters(%Pleroma.User{id: user_id} = user) do
 
   def create(%Pleroma.Filter{user_id: user_id, filter_id: nil} = filter) do
     # If filter_id wasn't given, use the max filter_id for this user plus 1.
-    # XXX This could result in a race condition if a user tries to add two 
-    # different filters for their account from two different clients at the 
-    # same time, but that should be unlikely. 
+    # XXX This could result in a race condition if a user tries to add two
+    # different filters for their account from two different clients at the
+    # same time, but that should be unlikely.
 
     max_id_query =
       from(

lib/pleroma/html.ex

@@ -166,7 +166,7 @@ def scrub_attribute("img", {"src", "http" <> target}) do
     {"src", media_url}
   end
 
-  def scrub_attribute(tag, attribute), do: attribute
+  def scrub_attribute(_tag, attribute), do: attribute
 
   def scrub({"img", attributes, children}) do
     attributes =
@@ -177,9 +177,9 @@ def scrub({"img", attributes, children}) do
     {"img", attributes, children}
   end
 
-  def scrub({:comment, children}), do: ""
+  def scrub({:comment, _children}), do: ""
 
   def scrub({tag, attributes, children}), do: {tag, attributes, children}
-  def scrub({tag, children}), do: children
+  def scrub({_tag, children}), do: children
   def scrub(text), do: text
 end

lib/pleroma/http/connection.ex

@@ -25,7 +25,7 @@ def new(opts \\ []) do
 
   # fetch Hackney options
   #
-  defp hackney_options(opts \\ []) do
+  defp hackney_options(opts) do
     options = Keyword.get(opts, :adapter, [])
     @hackney_options ++ options
   end

lib/pleroma/list.ex

@@ -23,7 +23,7 @@ def follow_changeset(list, attrs \\ %{}) do
     |> validate_required([:following])
   end
 
-  def for_user(user, opts) do
+  def for_user(user, _opts) do
     query =
       from(
         l in Pleroma.List,
@@ -46,7 +46,7 @@ def get(id, %{id: user_id} = _user) do
     Repo.one(query)
   end
 
-  def get_following(%Pleroma.List{following: following} = list) do
+  def get_following(%Pleroma.List{following: following} = _list) do
     q =
       from(
         u in User,

lib/pleroma/mime.ex

@@ -33,10 +33,10 @@ def bin_mime_type(<<head::binary-size(@read_bytes), _::binary>>) do
     {:ok, check_mime_type(head)}
   end
 
-  def mime_type(<<_::binary>>), do: {:ok, @default}
-
   def bin_mime_type(_), do: :error
 
+  def mime_type(<<_::binary>>), do: {:ok, @default}
+
   defp fix_extension(filename, content_type) do
     parts = String.split(filename, ".")
 

lib/pleroma/notification.ex

@@ -118,7 +118,7 @@ def create_notification(%Activity{} = activity, %User{} = user) do
   def get_notified_from_activity(activity, local_only \\ true)
 
   def get_notified_from_activity(
-        %Activity{data: %{"to" => _, "type" => type} = data} = activity,
+        %Activity{data: %{"to" => _, "type" => type} = _data} = activity,
         local_only
       )
       when type in ["Create", "Like", "Announce", "Follow"] do
@@ -131,18 +131,18 @@ def get_notified_from_activity(
     User.get_users_from_set(recipients, local_only)
   end
 
-  def get_notified_from_activity(_, local_only), do: []
+  def get_notified_from_activity(_, _local_only), do: []
 
   defp maybe_notify_to_recipients(
          recipients,
-         %Activity{data: %{"to" => to, "type" => type}} = activity
+         %Activity{data: %{"to" => to, "type" => _type}} = _activity
        ) do
     recipients ++ to
   end
 
   defp maybe_notify_mentioned_recipients(
          recipients,
-         %Activity{data: %{"to" => to, "type" => type} = data} = activity
+         %Activity{data: %{"to" => _to, "type" => type} = data} = _activity
        )
        when type == "Create" do
     object = Object.normalize(data["object"])

lib/pleroma/plugs/authentication_plug.ex

@@ -26,14 +26,7 @@ def call(
     end
   end
 
-  def call(
-        %{
-          assigns: %{
-            auth_credentials: %{password: password}
-          }
-        } = conn,
-        _
-      ) do
+  def call(%{assigns: %{auth_credentials: %{password: _}}} = conn, _) do
     Pbkdf2.dummy_checkpw()
     conn
   end

lib/pleroma/plugs/basic_auth_decoder_plug.ex

@@ -5,7 +5,7 @@ def init(options) do
     options
   end
 
-  def call(conn, opts) do
+  def call(conn, _opts) do
     with ["Basic " <> header] <- get_req_header(conn, "authorization"),
          {:ok, userinfo} <- Base.decode64(header),
          [username, password] <- String.split(userinfo, ":", parts: 2) do

lib/pleroma/plugs/federating_plug.ex

@@ -5,7 +5,7 @@ def init(options) do
     options
   end
 
-  def call(conn, opts) do
+  def call(conn, _opts) do
     if Keyword.get(Application.get_env(:pleroma, :instance), :federating) do
       conn
     else

lib/pleroma/plugs/http_security_plug.ex

@@ -4,11 +4,11 @@ defmodule Pleroma.Plugs.HTTPSecurityPlug do
 
   def init(opts), do: opts
 
-  def call(conn, options) do
+  def call(conn, _options) do
     if Config.get([:http_security, :enabled]) do
-      conn =
-        merge_resp_headers(conn, headers())
-        |> maybe_send_sts_header(Config.get([:http_security, :sts]))
+      conn
+      |> merge_resp_headers(headers())
+      |> maybe_send_sts_header(Config.get([:http_security, :sts]))
     else
       conn
     end
@@ -42,7 +42,7 @@ defp csp_string do
       "script-src 'self'",
       "connect-src 'self' " <> String.replace(Pleroma.Web.Endpoint.static_url(), "http", "ws"),
       "manifest-src 'self'",
-      if @protocol == "https" do
+      if protocol == "https" do
         "upgrade-insecure-requests"
       end
     ]

lib/pleroma/plugs/session_authentication_plug.ex

 defmodule Pleroma.Plugs.SessionAuthenticationPlug do
   import Plug.Conn
-  alias Pleroma.User
 
   def init(options) do
     options

lib/pleroma/plugs/uploaded_media.ex

@@ -8,10 +8,6 @@ defmodule Pleroma.Plugs.UploadedMedia do
   @behaviour Plug
   # no slashes
   @path "media"
-  @cache_control %{
-    default: "public, max-age=1209600",
-    error: "public, must-revalidate, max-age=160"
-  }
 
   def init(_opts) do
     static_plug_opts =

lib/pleroma/plugs/user_fetcher_plug.ex

@@ -7,7 +7,7 @@ def init(options) do
     options
   end
 
-  def call(conn, options) do
+  def call(conn, _options) do
     with %{auth_credentials: %{username: username}} <- conn.assigns,
          {:ok, %User{} = user} <- user_fetcher(username) do
       conn