Fix all compilation warnings

lib/pleroma/PasswordResetToken.ex

@@ -1,7 +1,7 @@
 defmodule Pleroma.PasswordResetToken do
   use Ecto.Schema
 
-  import Ecto.{Changeset, Query}
+  import Ecto.Changeset
 
   alias Pleroma.{User, PasswordResetToken, Repo}
 
@@ -26,7 +26,7 @@ defmodule Pleroma.PasswordResetToken do
   end
 
   def used_changeset(struct) do
-    changeset = struct
+    struct
     |> cast(%{}, [])
     |> put_change(:used, true)
   end
@@ -34,7 +34,7 @@ defmodule Pleroma.PasswordResetToken do
   def reset_password(token, data) do
     with %{used: false} = token <- Repo.get_by(PasswordResetToken, %{token: token}),
          %User{} = user <- Repo.get(User, token.user_id),
-         {:ok, user} <- User.reset_password(user, data),
+         {:ok, _user} <- User.reset_password(user, data),
          {:ok, token} <- Repo.update(used_changeset(token)) do
       {:ok, token}
     else

lib/pleroma/notification.ex

@@ -67,7 +67,7 @@ defmodule Pleroma.Notification do
     end
   end
 
-  def create_notifications(%Activity{id: id, data: %{"to" => to, "type" => type}} = activity) when type in ["Create", "Like", "Announce", "Follow"] do
+  def create_notifications(%Activity{id: _, data: %{"to" => _, "type" => type}} = activity) when type in ["Create", "Like", "Announce", "Follow"] do
     users = User.get_notified_from_activity(activity)
 
     notifications = Enum.map(users, fn (user) -> create_notification(activity, user) end)

lib/pleroma/object.ex

@@ -15,7 +15,7 @@ defmodule Pleroma.Object do
   end
 
   def change(struct, params \\ %{}) do
-    changeset = struct
+    struct
     |> cast(params, [:data])
     |> validate_required([:data])
     |> unique_constraint(:ap_id, name: :objects_unique_apid_index)

lib/pleroma/plugs/oauth_plug.ex

@@ -9,7 +9,7 @@ defmodule Pleroma.Plugs.OAuthPlug do
   end
 
   def call(%{assigns: %{user: %User{}}} = conn, _), do: conn
-  def call(conn, opts) do
+  def call(conn, _) do
     token = case get_req_header(conn, "authorization") do
               ["Bearer " <> header] -> header
               _ -> get_session(conn, :oauth_token)

lib/pleroma/user.ex

@@ -5,7 +5,6 @@ defmodule Pleroma.User do
   alias Pleroma.{Repo, User, Object, Web, Activity, Notification}
   alias Comeonin.Pbkdf2
   alias Pleroma.Web.{OStatus, Websub}
-  alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Utils
 
   schema "users" do
@@ -89,7 +88,7 @@ defmodule Pleroma.User do
   end
 
   def update_changeset(struct, params \\ %{}) do
-    changeset = struct
+    struct
     |> cast(params, [:bio, :name])
     |> unique_constraint(:nickname)
     |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
@@ -159,7 +158,7 @@ defmodule Pleroma.User do
       |> follow_changeset(%{following: following})
       |> Repo.update
 
-      {:ok, followed} = update_follower_count(followed)
+      {:ok, _} = update_follower_count(followed)
 
       follower
     end
@@ -214,7 +213,7 @@ defmodule Pleroma.User do
     with %User{} = user <- get_by_nickname(nickname)  do
       user
     else _e ->
-      with [nick, domain] <- String.split(nickname, "@"),
+      with [_nick, _domain] <- String.split(nickname, "@"),
            {:ok, user} <- OStatus.make_user(nickname) do
         user
       else _e -> nil
@@ -276,7 +275,7 @@ defmodule Pleroma.User do
     Repo.update(cs)
   end
 
-  def get_notified_from_activity(%Activity{data: %{"to" => to}} = activity) do
+  def get_notified_from_activity(%Activity{data: %{"to" => to}}) do
     query = from u in User,
       where: u.ap_id in ^to,
       where: u.local == true
@@ -284,7 +283,7 @@ defmodule Pleroma.User do
     Repo.all(query)
   end
 
-  def get_recipients_from_activity(%Activity{data: %{"to" => to}} = activity) do
+  def get_recipients_from_activity(%Activity{data: %{"to" => to}}) do
     query = from u in User,
       where: u.local == true
 

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -1,6 +1,5 @@
 defmodule Pleroma.Web.ActivityPub.ActivityPub do
-  alias Pleroma.{Activity, Repo, Object, Upload, User, Web, Notification}
-  alias Ecto.{Changeset, UUID}
+  alias Pleroma.{Activity, Repo, Object, Upload, User, Notification}
   import Ecto.Query
   import Pleroma.Web.ActivityPub.Utils
   require Logger
@@ -34,7 +33,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   end
 
   # TODO: This is weird, maybe we shouldn't check here if we can make the activity.
-  def like(%User{ap_id: ap_id} = user, %Object{data: %{"id" => id}} = object, activity_id \\ nil, local \\ true) do
+  def like(%User{ap_id: ap_id} = user, %Object{data: %{"id" => _}} = object, activity_id \\ nil, local \\ true) do
     with nil <- get_existing_like(ap_id, object),
          like_data <- make_like_data(user, object, activity_id),
          {:ok, activity} <- insert(like_data, local),
@@ -56,7 +55,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
-  def announce(%User{ap_id: ap_id} = user, %Object{data: %{"id" => id}} = object, activity_id \\ nil, local \\ true) do
+  def announce(%User{ap_id: _} = user, %Object{data: %{"id" => _}} = object, activity_id \\ nil, local \\ true) do
     with announce_data <- make_announce_data(user, object, activity_id),
          {:ok, activity} <- insert(announce_data, local),
          {:ok, object} <- add_announce_to_object(activity, object),

lib/pleroma/web/activity_pub/utils.ex

@@ -64,7 +64,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   Inserts a full object if it is contained in an activity.
   """
   def insert_full_object(%{"object" => object_data}) when is_map(object_data) do
-    with {:ok, object} <- Object.create(object_data) do
+    with {:ok, _} <- Object.create(object_data) do
       :ok
     end
   end
@@ -88,7 +88,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   @doc """
   Returns an existing like if a user already liked an object
   """
-  def get_existing_like(actor, %{data: %{"id" => id}} = object) do
+  def get_existing_like(actor, %{data: %{"id" => id}}) do
     query = from activity in Activity,
       where: fragment("(?)->>'actor' = ?", activity.data, ^actor),
       # this is to use the index
@@ -201,7 +201,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   def make_create_data(params, additional) do
     published = params.published || make_date()
 
-    activity = %{
+    %{
       "type" => "Create",
       "to" => params.to |> Enum.uniq,
       "actor" => params.actor.ap_id,

lib/pleroma/web/common_api/utils.ex

@@ -57,7 +57,7 @@ defmodule Pleroma.Web.CommonAPI.Utils do
     Enum.join([text | attachment_text], "<br>")
   end
 
-  def format_input(text, mentions, tags) do
+  def format_input(text, mentions, _tags) do
     Phoenix.HTML.html_escape(text)
     |> elem(1)
     |> Formatter.linkify

lib/pleroma/web/federator/federator.ex

@@ -71,7 +71,7 @@ defmodule Pleroma.Web.Federator do
     end
   end
 
-  def handle(type, payload) do
+  def handle(type, _) do
     Logger.debug(fn -> "Unknown task: #{type}" end)
     {:error, "Don't know what do do with this"}
   end
@@ -101,14 +101,14 @@ defmodule Pleroma.Web.Federator do
     {:noreply, {running_jobs, queue}}
   end
 
+  def handle_cast(m, state) do
+    IO.inspect("Unknown: #{inspect(m)}, #{inspect(state)}")
+    {:noreply, state}
+  end
+
   def handle_info({:DOWN, ref, :process, _pid, _reason}, {running_jobs, queue}) do
     running_jobs = :sets.del_element(ref, running_jobs)
     {running_jobs, queue} = maybe_start_job(running_jobs, queue)
     {:noreply, {running_jobs, queue}}
   end
-
-  def handle_cast(m, state) do
-    IO.inspect("Unknown: #{inspect(m)}, #{inspect(state)}")
-    {:noreply, state}
-  end
 end

lib/pleroma/web/mastodon_api/mastodon_api_controller.ex

@@ -4,12 +4,11 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   alias Pleroma.Web
   alias Pleroma.Web.MastodonAPI.{StatusView, AccountView, MastodonView}
   alias Pleroma.Web.ActivityPub.ActivityPub
-  alias Pleroma.Web.TwitterAPI.TwitterAPI
   alias Pleroma.Web.{CommonAPI, OStatus}
   alias Pleroma.Web.OAuth.{Authorization, Token, App}
   alias Comeonin.Pbkdf2
   import Ecto.Query
-  import Logger
+  require Logger
 
   def create_app(conn, params) do
     with cs <- App.register_changeset(%App{}, params) |> IO.inspect,
@@ -75,7 +74,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
     end
   end
 
-  def verify_credentials(%{assigns: %{user: user}} = conn, params) do
+  def verify_credentials(%{assigns: %{user: user}} = conn, _) do
     account = AccountView.render("account.json", %{user: user})
     json(conn, account)
   end
@@ -207,7 +206,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
     end
   end
 
-  def post_status(%{assigns: %{user: user}} = conn, %{"status" => status} = params) do
+  def post_status(%{assigns: %{user: user}} = conn, %{"status" => _} = params) do
     params = params
     |> Map.put("in_reply_to_status_id", params["in_reply_to_id"])
 
@@ -293,7 +292,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
     render conn, AccountView, "relationships.json", %{user: user, targets: targets}
   end
 
-  def upload(%{assigns: %{user: user}} = conn, %{"file" => file}) do
+  def upload(%{assigns: %{user: _}} = conn, %{"file" => file}) do
     with {:ok, object} <- ActivityPub.upload(file) do
       data = object.data
       |> Map.put("id", object.id)
@@ -303,7 +302,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   end
 
   def favourited_by(conn, %{"id" => id}) do
-    with %Activity{data: %{"object" => %{"likes" => likes} = data}} <- Repo.get(Activity, id) do
+    with %Activity{data: %{"object" => %{"likes" => likes}}} <- Repo.get(Activity, id) do
       q = from u in User,
         where: u.ap_id in ^likes
       users = Repo.all(q)
@@ -356,10 +355,10 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   def follow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
     with %User{} = followed <- Repo.get(User, id),
          {:ok, follower} <- User.follow(follower, followed),
-         {:ok, activity} <- ActivityPub.follow(follower, followed) do
+         {:ok, _activity} <- ActivityPub.follow(follower, followed) do
       render conn, AccountView, "relationship.json", %{user: follower, target: followed}
     else
-      {:error, message} = err ->
+      {:error, message} ->
         conn
         |> put_resp_content_type("application/json")
         |> send_resp(403, Poison.encode!(%{"error" => message}))
@@ -369,10 +368,10 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   def follow(%{assigns: %{user: follower}} = conn, %{"uri" => uri}) do
     with %User{} = followed <- Repo.get_by(User, nickname: uri),
          {:ok, follower} <- User.follow(follower, followed),
-         {:ok, activity} <- ActivityPub.follow(follower, followed) do
+         {:ok, _activity} <- ActivityPub.follow(follower, followed) do
       render conn, AccountView, "account.json", %{user: followed}
     else
-      {:error, message} = err ->
+      {:error, message} ->
         conn
         |> put_resp_content_type("application/json")
         |> send_resp(403, Poison.encode!(%{"error" => message}))
@@ -397,7 +396,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
          {:ok, blocker} <- User.block(blocker, blocked) do
       render conn, AccountView, "relationship.json", %{user: blocker, target: blocked}
     else
-      {:error, message} = err ->
+      {:error, message} ->
         conn
         |> put_resp_content_type("application/json")
         |> send_resp(403, Poison.encode!(%{"error" => message}))
@@ -409,7 +408,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
          {:ok, blocker} <- User.unblock(blocker, blocked) do
       render conn, AccountView, "relationship.json", %{user: blocker, target: blocked}
     else
-      {:error, message} = err ->
+      {:error, message} ->
         conn
         |> put_resp_content_type("application/json")
         |> send_resp(403, Poison.encode!(%{"error" => message}))
@@ -459,7 +458,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
     json(conn, res)
   end
 
-  def favourites(%{assigns: %{user: user}} = conn, params) do
+  def favourites(%{assigns: %{user: user}} = conn, _) do
     params = conn
     |> Map.put("type", "Create")
     |> Map.put("favorited_by", user.ap_id)
@@ -556,7 +555,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
     end
   end
 
-  def login(conn, params) do
+  def login(conn, _) do
     conn
     |> render(MastodonView, "login.html")
   end

lib/pleroma/web/mastodon_api/mastodon_socket.ex

@@ -22,9 +22,9 @@ defmodule Pleroma.Web.MastodonAPI.MastodonSocket do
     end
   end
 
-  def id(socket), do: nil
+  def id(_), do: nil
 
-  def handle(:text, message, state) do
+  def handle(:text, message, _state) do
     IO.inspect message
     #| :ok
     #| state
@@ -34,7 +34,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonSocket do
     {:text, message}
   end
 
-  def handle(:closed, reason, %{socket: socket}) do
+  def handle(:closed, _, %{socket: socket}) do
     topic = socket.assigns[:topic]
     Pleroma.Web.Streamer.remove_socket(topic, socket)
   end

lib/pleroma/web/mastodon_api/views/account_view.ex

@@ -4,7 +4,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
   alias Pleroma.Web.MastodonAPI.AccountView
   alias Pleroma.Web.CommonAPI.Utils
 
-  defp image_url(%{"url" => [ %{ "href" => href } | t ]}), do: href
+  defp image_url(%{"url" => [ %{ "href" => href } | _ ]}), do: href
   defp image_url(_), do: nil
 
   def render("accounts.json", %{users: users} = opts) do

lib/pleroma/web/ostatus/activity_representer.ex

@@ -108,7 +108,7 @@ defmodule Pleroma.Web.OStatus.ActivityRepresenter do
     updated_at = activity.data["published"]
     inserted_at = activity.data["published"]
 
-    in_reply_to = get_in_reply_to(activity.data)
+    _in_reply_to = get_in_reply_to(activity.data)
     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
     mentions = activity.data["to"] |> get_mentions
 
@@ -136,7 +136,7 @@ defmodule Pleroma.Web.OStatus.ActivityRepresenter do
     updated_at = activity.data["published"]
     inserted_at = activity.data["published"]
 
-    in_reply_to = get_in_reply_to(activity.data)
+    _in_reply_to = get_in_reply_to(activity.data)
     author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 
     retweeted_activity = Activity.get_create_activity_by_object_ap_id(activity.data["object"])
@@ -233,6 +233,8 @@ defmodule Pleroma.Web.OStatus.ActivityRepresenter do
     ]  ++ author
   end
 
+  def to_simple_form(_, _, _), do: nil
+
   def wrap_with_entry(simple_form) do
     [{
       :entry, [
@@ -244,6 +246,4 @@ defmodule Pleroma.Web.OStatus.ActivityRepresenter do
       ], simple_form
     }]
   end
-
-  def to_simple_form(_, _, _), do: nil
 end

lib/pleroma/web/ostatus/feed_representer.ex

@@ -2,7 +2,7 @@ defmodule Pleroma.Web.OStatus.FeedRepresenter do
   alias Pleroma.Web.OStatus
   alias Pleroma.Web.OStatus.{UserRepresenter, ActivityRepresenter}
 
-  def to_simple_form(user, activities, users) do
+  def to_simple_form(user, activities, _users) do
     most_recent_update = (List.first(activities) || user).updated_at
     |> NaiveDateTime.to_iso8601
 

lib/pleroma/web/ostatus/handlers/delete_handler.ex

@@ -1,10 +1,10 @@
 defmodule Pleroma.Web.OStatus.DeleteHandler do
   require Logger
-  alias Pleroma.Web.{XML, OStatus}
-  alias Pleroma.{Activity, Object, Repo}
+  alias Pleroma.Web.XML
+  alias Pleroma.Object
   alias Pleroma.Web.ActivityPub.ActivityPub
 
-  def handle_delete(entry, doc \\ nil) do
+  def handle_delete(entry, _doc \\ nil) do
     with id <- XML.string_from_xpath("//id", entry),
          object when not is_nil(object) <- Object.get_by_ap_id(id),
          {:ok, delete} <- ActivityPub.delete(object, false) do

lib/pleroma/web/ostatus/ostatus.ex

@@ -7,7 +7,6 @@ defmodule Pleroma.Web.OStatus do
 
   alias Pleroma.{Repo, User, Web, Object, Activity}
   alias Pleroma.Web.ActivityPub.ActivityPub
-  alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.{WebFinger, Websub}
   alias Pleroma.Web.OStatus.{FollowHandler, NoteHandler, DeleteHandler}
 
@@ -112,7 +111,7 @@ defmodule Pleroma.Web.OStatus do
     with id when not is_nil(id) <- string_from_xpath("//activity:object[1]/id", entry),
          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
       {:ok, activity}
-    else e ->
+    else _ ->
         Logger.debug("Couldn't get, will try to fetch")
         with href when not is_nil(href) <- string_from_xpath("//activity:object[1]/link[@type=\"text/html\"]/@href", entry),
              {:ok, [favorited_activity]} <- fetch_activity_from_url(href) do
@@ -191,7 +190,7 @@ defmodule Pleroma.Web.OStatus do
          false <- new_data == old_data do
       change = Ecto.Changeset.change(user, new_data)
       Repo.update(change)
-    else e ->
+    else _ ->
       {:ok, user}
     end
   end

lib/pleroma/web/ostatus/ostatus_controller.ex

@@ -46,7 +46,7 @@ defmodule Pleroma.Web.OStatus.OStatusController do
         with [decoded | _] <- Pleroma.Web.Salmon.decode(body),
              doc <- XML.parse_document(decoded),
              uri when not is_nil(uri) <- XML.string_from_xpath("/entry/author[1]/uri", doc),
-             {:ok, user} <- Pleroma.Web.OStatus.make_user(uri, true),
+             {:ok, _} <- Pleroma.Web.OStatus.make_user(uri, true),
              {:ok, magic_key} <- Pleroma.Web.Salmon.fetch_magic_key(body),
              {:ok, doc} <- Pleroma.Web.Salmon.decode_and_validate(magic_key, body) do
           {:ok, doc}
@@ -54,7 +54,7 @@ defmodule Pleroma.Web.OStatus.OStatusController do
     end
   end
 
-  def salmon_incoming(conn, params) do
+  def salmon_incoming(conn, _) do
     {:ok, body, _conn} = read_body(conn)
     {:ok, doc} = decode_or_retry(body)
 

lib/pleroma/web/streamer.ex

@@ -1,7 +1,6 @@
 defmodule Pleroma.Web.Streamer do
   use GenServer
   require Logger
-  import Plug.Conn
   alias Pleroma.{User, Notification}
 
   def start_link do
@@ -38,17 +37,6 @@ defmodule Pleroma.Web.Streamer do
     {:noreply, topics}
   end
 
-  def push_to_socket(topics, topic, item) do
-    Enum.each(topics[topic] || [], fn (socket) ->
-      json = %{
-        event: "update",
-        payload: Pleroma.Web.MastodonAPI.StatusView.render("status.json", activity: item, for: socket.assigns[:user]) |> Poison.encode!
-      } |> Poison.encode!
-
-      send socket.transport_pid, {:text, json}
-    end)
-  end
-
   def handle_cast(%{action: :stream, topic: "user", item: %Notification{} = item}, topics) do
     topic = "user:#{item.user_id}"
     Enum.each(topics[topic] || [], fn (socket) ->
@@ -80,11 +68,6 @@ defmodule Pleroma.Web.Streamer do
     {:noreply, topics}
   end
 
-  defp internal_topic("user", socket) do
-    "user:#{socket.assigns[:user].id}"
-  end
-  defp internal_topic(topic, socket), do: topic
-
   def handle_cast(%{action: :add, topic: topic, socket: socket}, sockets) do
     topic = internal_topic(topic, socket)
     sockets_for_topic = sockets[topic] || []
@@ -109,4 +92,21 @@ defmodule Pleroma.Web.Streamer do
     IO.inspect("Unknown: #{inspect(m)}, #{inspect(state)}")
     {:noreply, state}
   end
+
+  def push_to_socket(topics, topic, item) do
+    Enum.each(topics[topic] || [], fn (socket) ->
+      json = %{
+        event: "update",
+        payload: Pleroma.Web.MastodonAPI.StatusView.render("status.json", activity: item, for: socket.assigns[:user]) |> Poison.encode!
+      } |> Poison.encode!
+
+      send socket.transport_pid, {:text, json}
+    end)
+  end
+
+  defp internal_topic("user", socket) do
+    "user:#{socket.assigns[:user].id}"
+  end
+
+  defp internal_topic(topic, _), do: topic
 end

lib/pleroma/web/twitter_api/representers/activity_representer.ex

@@ -97,7 +97,7 @@ defmodule Pleroma.Web.TwitterAPI.Representers.ActivityRepresenter do
     }
   end
 
-  def to_map(%Activity{data: %{"type" => "Delete", "published" => created_at, "object" => deleted_object }} = activity, %{user: user} = opts) do
+  def to_map(%Activity{data: %{"type" => "Delete", "published" => created_at, "object" => _ }} = activity, %{user: user} = opts) do
     created_at = created_at |> Utils.date_to_asctime
 
     %{

lib/pleroma/web/twitter_api/twitter_api.ex

@@ -4,12 +4,11 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
   alias Pleroma.Web.TwitterAPI.Representers.ActivityRepresenter
   alias Pleroma.Web.TwitterAPI.UserView
   alias Pleroma.Web.{OStatus, CommonAPI}
-  alias Pleroma.Formatter
   import Ecto.Query
 
   @httpoison Application.get_env(:pleroma, :httpoison)
 
-  def create_status(%User{} = user, %{"status" => status} = data) do
+  def create_status(%User{} = user, %{"status" => _} = data) do
     CommonAPI.post(user, data)
   end
 
@@ -216,7 +215,7 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
     end
   end
 
-  defp parse_int(string, default \\ nil)
+  defp parse_int(string, default)
   defp parse_int(string, default) when is_binary(string) do
     with {n, _} <- Integer.parse(string) do
       n

lib/pleroma/web/twitter_api/twitter_api_controller.ex

@@ -3,7 +3,7 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
   alias Pleroma.Web.TwitterAPI.{TwitterAPI, UserView}
   alias Pleroma.Web.TwitterAPI.Representers.ActivityRepresenter
   alias Pleroma.Web.CommonAPI
-  alias Pleroma.{Repo, Activity, User, Object}
+  alias Pleroma.{Repo, Activity, User}
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Ecto.Changeset
 
@@ -13,7 +13,7 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
     render(conn, UserView, "show.json", %{user: user})
   end
 
-  def status_update(%{assigns: %{user: user}} = conn, %{"status" => status_text} = status_data) do
+  def status_update(%{assigns: %{user: user}} = conn, %{"status" => _} = status_data) do
     with media_ids <- extract_media_ids(status_data),
          {:ok, activity} <- TwitterAPI.create_status(user, Map.put(status_data, "media_ids",  media_ids)) do
       conn
@@ -215,8 +215,8 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
     with {:ok, object} <- ActivityPub.upload(%{"img" => params["banner"]}),
          new_info <- Map.put(user.info, "banner", object.data),
          change <- User.info_changeset(user, %{info: new_info}),
-         {:ok, user} <- Repo.update(change) do
-      %{"url" => [ %{ "href" => href } | t ]} = object.data
+         {:ok, _user} <- Repo.update(change) do
+      %{"url" => [ %{ "href" => href } | _ ]} = object.data
       response = %{ url: href } |> Poison.encode!
       conn
       |> json_reply(200, response)
@@ -227,8 +227,8 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
     with {:ok, object} <- ActivityPub.upload(params),
          new_info <- Map.put(user.info, "background", object.data),
          change <- User.info_changeset(user, %{info: new_info}),
-         {:ok, user} <- Repo.update(change) do
-      %{"url" => [ %{ "href" => href } | t ]} = object.data
+         {:ok, _user} <- Repo.update(change) do
+      %{"url" => [ %{ "href" => href } | _ ]} = object.data
       response = %{ url: href } |> Poison.encode!
       conn
       |> json_reply(200, response)
@@ -254,7 +254,7 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
          mrn <- max(id, user.info["most_recent_notification"] || 0),
          updated_info <- Map.put(info, "most_recent_notification", mrn),
          changeset <- User.info_changeset(user, %{info: updated_info}),
-         {:ok, user} <- Repo.update(changeset) do
+         {:ok, _user} <- Repo.update(changeset) do
       conn
       |> json_reply(200, Poison.encode!(mrn))
     else
@@ -311,7 +311,7 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
     end
   end
 
-  def search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
+  def search(%{assigns: %{user: user}} = conn, %{"q" => _query} = params) do
     conn
     |> json(TwitterAPI.search(user, params))
   end

lib/pleroma/web/twitter_api/views/user_view.ex

@@ -11,9 +11,6 @@ defmodule Pleroma.Web.TwitterAPI.UserView do
     render_many(users, Pleroma.Web.TwitterAPI.UserView, "user.json", for: user)
   end
 
-  defp image_url(%{"url" => [ %{ "href" => href } | t ]}), do: href
-  defp image_url(_), do: nil
-
   def render("user.json", %{user: user = %User{}} = assigns) do
     image = User.avatar_url(user)
     {following, follows_you, statusnet_blocking} = if assigns[:for] do
@@ -63,4 +60,7 @@ defmodule Pleroma.Web.TwitterAPI.UserView do
       "screen_name" => nickname
     }
   end
+
+  defp image_url(%{"url" => [ %{ "href" => href } | _ ]}), do: href
+  defp image_url(_), do: nil
 end

lib/pleroma/web/web_finger/web_finger.ex

@@ -89,7 +89,7 @@ defmodule Pleroma.Web.WebFinger do
     with {:ok, %{status_code: status_code, body: body}} when status_code in 200..299 <- @httpoison.get("http://#{domain}/.well-known/host-meta", [], follow_redirect: true) do
       get_template_from_xml(body)
     else
-      e ->
+      _ ->
         with {:ok, %{body: body}} <- @httpoison.get("https://#{domain}/.well-known/host-meta", []) do
           get_template_from_xml(body)
         else

lib/pleroma/web/xml/xml.ex

@@ -1,7 +1,7 @@
 defmodule Pleroma.Web.XML do
   require Logger
 
-  def string_from_xpath(xpath, :error), do: nil
+  def string_from_xpath(_, :error), do: nil
   def string_from_xpath(xpath, doc) do
     {:xmlObj, :string, res} = :xmerl_xpath.string('string(#{xpath})', doc)
 
@@ -20,7 +20,7 @@ defmodule Pleroma.Web.XML do
 
       doc
     catch
-      :exit, error ->
+      :exit, _error ->
         Logger.debug("Couldn't parse xml: #{inspect(text)}")
         :error
     end

lib/transports.ex

@@ -61,7 +61,7 @@ defmodule Phoenix.Transports.WebSocket.Raw do
     end
   end
 
-  def ws_info({op, data} = tuple, state) do
+  def ws_info({_,_} = tuple, state) do
     {:reply, tuple, state}
   end
 

lib/xml_builder.ex

@@ -37,6 +37,6 @@ defmodule Pleroma.XmlBuilder do
       "#{attribute}=\"#{value}\""
     end |> Enum.join(" ")
 
-    [tag, attributes_string] |> Enum.join(" ") |> String.strip
+    [tag, attributes_string] |> Enum.join(" ") |> String.trim
   end
 end