From 528c6a55a3f45ad5b5a7a9c7e98cd1c906d62fc2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Richard=20Nystr=C3=B6m?= <ricn@rny.io>
Date: Fri, 19 Jan 2018 00:03:43 +0100
Subject: [PATCH] Code formatting using Elixir 1.6.0

---
 .formatter.exs       |  3 +++
 lib/librex.ex        | 62 ++++++++++++++++++++++++++------------------
 mix.exs              | 40 ++++++++++++++++------------
 test/librex_test.exs | 42 ++++++++++++++++++------------
 4 files changed, 88 insertions(+), 59 deletions(-)
 create mode 100644 .formatter.exs

diff --git a/.formatter.exs b/.formatter.exs
new file mode 100644
index 0000000..e248405
--- /dev/null
+++ b/.formatter.exs
@@ -0,0 +1,3 @@
+[
+    inputs: ["mix.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]
\ No newline at end of file
diff --git a/lib/librex.ex b/lib/librex.ex
index 974ae1d..9c16e6a 100644
--- a/lib/librex.ex
+++ b/lib/librex.ex
@@ -2,32 +2,31 @@ defmodule Librex do
   @moduledoc """
   Provides functions to convert office documents, spreadsheets & presentations to other formats.
 
-  LibreOffice must be installed. It's recommended that you add the soffice binary your PATH. Otherwise you have to specify the
-  absolute path to the soffice binary as the last parameter.
+  LibreOffice must be installed. It's recommended that you add the soffice binary your PATH. Otherwise you have to specify the absolute path to the soffice binary as the last parameter.
 
-   ## Examples
+  ## Examples
 
-      iex(1)> Librex.convert("test/fixtures/docx.docx", "/Users/ricn/docx.pdf")
+     iex(1)> Librex.convert("test/fixtures/docx.docx", "/Users/ricn/docx.pdf")
 
-      `{:ok, "/Users/ricn/docx.pdf"}`
+     `{:ok, "/Users/ricn/docx.pdf"}`
 
-      iex(2)> Librex.convert("non_existent_file", "/Users/ricn/docx.pdf")
+     iex(2)> Librex.convert("non_existent_file", "/Users/ricn/docx.pdf")
 
-      `{:error, :enoent}`
+     `{:error, :enoent}`
 
-      iex(3)> Librex.convert!("test/fixtures/docx.docx", "/Users/ricn/docx.pdf")
+     iex(3)> Librex.convert!("test/fixtures/docx.docx", "/Users/ricn/docx.pdf")
 
-      "/Users/ricn/docx.pdf"
+     "/Users/ricn/docx.pdf"
 
-      iex(4)> Librex.convert!("non_existent_file", "/Users/ricn/docx.pdf")
+     iex(4)> Librex.convert!("non_existent_file", "/Users/ricn/docx.pdf")
 
-      ** (File.Error) could not read non_existent_file: no such file or directory (librex) lib/librex.ex:13: Librex.convert!/3
+     ** (File.Error) could not read non_existent_file: no such file or directory (librex) lib/librex.ex:13: Librex.convert!/3
 
-      iex(5)> Librex.convert("test/fixtures/docx.docx", "/Users/ricn/docx.pdf", "/path_to/soffice")
+     iex(5)> Librex.convert("test/fixtures/docx.docx", "/Users/ricn/docx.pdf", "/path_to/soffice")
 
-      `{:ok, "/Users/ricn/docx.pdf"}`
+     `{:ok, "/Users/ricn/docx.pdf"}`
 
-   """
+  """
 
   @doc """
     Converts in_file to out_file
@@ -35,8 +34,8 @@ defmodule Librex do
   """
   def convert(in_file, out_file, soffice_cmd \\ "soffice") do
     case validate(in_file, out_file, soffice_cmd) do
-      {:ok, _}  -> do_convert(in_file, out_file, soffice_cmd)
-      {:error, reason } -> {:error, reason}
+      {:ok, _} -> do_convert(in_file, out_file, soffice_cmd)
+      {:error, reason} -> {:error, reason}
     end
   end
 
@@ -45,7 +44,7 @@ defmodule Librex do
   """
   def convert!(in_file, out_file, soffice_cmd \\ "soffice") do
     case convert(in_file, out_file, soffice_cmd) do
-      {:ok, _}      -> out_file
+      {:ok, _} -> out_file
       {:error, reason} -> raise_error(reason, in_file)
     end
   end
@@ -91,7 +90,8 @@ defmodule Librex do
 
   defp validate_output(result, output_file) do
     output_ext = String.replace(Path.extname(output_file), ".", "")
-    if Enum.any?(supported_formats(), fn(ext) -> ext == output_ext end) do
+
+    if Enum.any?(supported_formats(), fn ext -> ext == output_ext end) do
       result
     else
       {:error, "#{output_ext} is not a supported output format"}
@@ -99,7 +99,8 @@ defmodule Librex do
   end
 
   defp supported_formats do
-    supported_document_formats() ++ supported_presentation_formats() ++ supported_spreadsheet_formats()
+    supported_document_formats() ++
+      supported_presentation_formats() ++ supported_spreadsheet_formats()
   end
 
   defp validate_soffice(result, soffice_cmd) do
@@ -113,21 +114,32 @@ defmodule Librex do
   defp do_convert(in_file, out_file, soffice_cmd) do
     basename = Path.basename(in_file, Path.extname(in_file))
     convert_to = String.replace(Path.extname(out_file), ".", "")
-    out_temp_dir = System.tmp_dir! <> "/" <> SecureRandom.uuid <> "/"
+    out_temp_dir = System.tmp_dir!() <> "/" <> SecureRandom.uuid() <> "/"
     out_temp_file = out_temp_dir <> basename <> Path.extname(out_file)
 
     run(Path.expand(in_file), out_temp_dir, convert_to, soffice_cmd)
 
-    File.cp! out_temp_file, Path.expand(out_file)
-    File.rm! out_temp_file
-    File.rmdir! out_temp_dir
+    File.cp!(out_temp_file, Path.expand(out_file))
+    File.rm!(out_temp_file)
+    File.rmdir!(out_temp_dir)
 
     {:ok, out_file}
   end
 
   defp run(file_to_convert, out_dir, convert_to, soffice_cmd) do
-    user_installation = "-env:UserInstallation=file://" <> System.tmp_dir! <> "/" <> "librex_oouser"
-    opts = [user_installation, "--headless", "--convert-to", convert_to, "--outdir", out_dir, file_to_convert]
+    user_installation =
+      "-env:UserInstallation=file://" <> System.tmp_dir!() <> "/" <> "librex_oouser"
+
+    opts = [
+      user_installation,
+      "--headless",
+      "--convert-to",
+      convert_to,
+      "--outdir",
+      out_dir,
+      file_to_convert
+    ]
+
     cmd = System.find_executable(soffice_cmd)
     System.cmd(cmd, opts, stderr_to_stdout: true)
   end
diff --git a/mix.exs b/mix.exs
index 907492d..b140f7a 100644
--- a/mix.exs
+++ b/mix.exs
@@ -2,13 +2,15 @@ defmodule Librex.Mixfile do
   use Mix.Project
 
   def project do
-    [app: :librex,
-     version: "1.0.2",
-     elixir: "~> 1.0",
-     description: description(),
-     package: package(),
-     deps: deps(),
-     test_coverage: [tool: ExCoveralls]]
+    [
+      app: :librex,
+      version: "1.0.2",
+      elixir: "~> 1.0",
+      description: description(),
+      package: package(),
+      deps: deps(),
+      test_coverage: [tool: ExCoveralls]
+    ]
   end
 
   def application do
@@ -16,11 +18,13 @@ defmodule Librex.Mixfile do
   end
 
   defp deps do
-    [{:secure_random, "~> 0.5"},
-     {:inch_ex, "~> 0.5", only: :docs},
-     {:earmark, "~> 1.2", only: :dev},
-     {:ex_doc, "~> 0.16", only: :dev},
-     {:excoveralls, "~> 0.6", only: [:dev, :test]}]
+    [
+      {:secure_random, "~> 0.5"},
+      {:inch_ex, "~> 0.5", only: :docs},
+      {:earmark, "~> 1.2", only: :dev},
+      {:ex_doc, "~> 0.16", only: :dev},
+      {:excoveralls, "~> 0.6", only: [:dev, :test]}
+    ]
   end
 
   defp description do
@@ -28,10 +32,12 @@ defmodule Librex.Mixfile do
   end
 
   defp package do
-    [files: ["lib", "mix.exs", "README*", "LICENSE*"],
-     contributors: ["Richard Nyström", "Sergey Chechaev"],
-     maintainers: ["Richard Nyström"],
-     licenses: ["MIT"],
-     links: %{"GitHub" => "https://github.com/ricn/librex", "Docs" => "http://hexdocs.pm/librex"}]
+    [
+      files: ["lib", "mix.exs", "README*", "LICENSE*"],
+      contributors: ["Richard Nyström", "Sergey Chechaev"],
+      maintainers: ["Richard Nyström"],
+      licenses: ["MIT"],
+      links: %{"GitHub" => "https://github.com/ricn/librex", "Docs" => "http://hexdocs.pm/librex"}
+    ]
   end
 end
diff --git a/test/librex_test.exs b/test/librex_test.exs
index 16d6d09..36424e0 100644
--- a/test/librex_test.exs
+++ b/test/librex_test.exs
@@ -13,37 +13,37 @@ defmodule LibrexTest do
   @non_existent_file Path.join(__DIR__, "fixtures/non.existent")
 
   test ".convert docx to other supported formats" do
-    Enum.each(["pdf", "odt"], fn(format) -> test_conversion(@docx_file, format) end)
+    Enum.each(["pdf", "odt"], fn format -> test_conversion(@docx_file, format) end)
   end
 
   test ".convert odt to other supported formats" do
-    Enum.each(["pdf", "docx"], fn(format) -> test_conversion(@odt_file, format) end)
+    Enum.each(["pdf", "docx"], fn format -> test_conversion(@odt_file, format) end)
   end
 
   test ".convert pptx to other supported formats" do
-    Enum.each(["pdf", "odp"], fn(format) -> test_conversion(@pptx_file, format) end)
+    Enum.each(["pdf", "odp"], fn format -> test_conversion(@pptx_file, format) end)
   end
 
   test ".convert odp to other supported formats" do
-    Enum.each(["pdf", "pptx"], fn(format) -> test_conversion(@odp_file, format) end)
+    Enum.each(["pdf", "pptx"], fn format -> test_conversion(@odp_file, format) end)
   end
 
   test ".convert xlsx to other supported formats" do
-    Enum.each(["pdf", "ods"], fn(format) -> test_conversion(@xlsx_file, format) end)
+    Enum.each(["pdf", "ods"], fn format -> test_conversion(@xlsx_file, format) end)
   end
 
   test ".convert ods to other supported formats" do
-    Enum.each(["pdf", "xlsx"], fn(format) -> test_conversion(@ods_file, format) end)
+    Enum.each(["pdf", "xlsx"], fn format -> test_conversion(@ods_file, format) end)
   end
 
   defp test_conversion(input_file, output_format) do
     output_file = random_path() <> "." <> output_format
-    refute File.exists? output_file
-    assert { :ok, output_file } == Librex.convert(input_file, output_file)
+    refute File.exists?(output_file)
+    assert {:ok, output_file} == Librex.convert(input_file, output_file)
   end
 
   test ".convert must return error when file to convert does not exist" do
-    assert { :error, :enoent } == Librex.convert(@non_existent_file, "/tmp/output.pdf")
+    assert {:error, :enoent} == Librex.convert(@non_existent_file, "/tmp/output.pdf")
   end
 
   test ".convert! must return output file path" do
@@ -53,20 +53,24 @@ defmodule LibrexTest do
 
   test ".convert! must raise error when file to convert does not exist" do
     msg = "could not read \"#{@non_existent_file}\": no such file or directory"
+
     assert_raise File.Error, msg, fn ->
       Librex.convert!(@non_existent_file, "/tmp/output.pdf")
     end
   end
 
   test "convert must return error when LibreOffice executable can't be found" do
-    cmd = "sofice" # misspelled
+    # misspelled
+    cmd = "sofice"
     msg = "LibreOffice (#{cmd}) executable could not be found."
     assert {:error, msg} == Librex.convert(@docx_file, "/tmp/output.pdf", "sofice")
   end
 
   test "convert! must raise error when LibreOffice executable can't be found" do
-    cmd = "sofice" # misspelled
+    # misspelled
+    cmd = "sofice"
     msg = "LibreOffice (#{cmd}) executable could not be found."
+
     assert_raise RuntimeError, msg, fn ->
       Librex.convert!(@docx_file, "/tmp/output.pdf", "sofice")
     end
@@ -74,34 +78,38 @@ defmodule LibrexTest do
 
   test ".convert must have the possibility to specify LibreOffice command" do
     pdf_file = random_path() <> ".pdf"
-    assert { :ok, pdf_file } == Librex.convert(@docx_file, pdf_file, System.find_executable("soffice"))
+
+    assert {:ok, pdf_file} ==
+             Librex.convert(@docx_file, pdf_file, System.find_executable("soffice"))
   end
 
   test ".convert must return error when file to convert is directory" do
     pdf_file = random_path() <> ".pdf"
-    assert Librex.convert(System.tmp_dir!, pdf_file) == {:error, :eisdir}
+    assert Librex.convert(System.tmp_dir!(), pdf_file) == {:error, :eisdir}
   end
 
   test ".convert! must raise error when file to convert is directory" do
-    msg = "could not read \"#{System.tmp_dir!}\": illegal operation on a directory"
+    msg = "could not read \"#{System.tmp_dir!()}\": illegal operation on a directory"
+
     assert_raise File.Error, msg, fn ->
-      Librex.convert!(System.tmp_dir!, "/tmp/output.pdf")
+      Librex.convert!(System.tmp_dir!(), "/tmp/output.pdf")
     end
   end
 
   test ".convert must return error when output file has wrong extension" do
-    { :error, reason } = Librex.convert(@docx_file, "/tmp/output.mp3")
+    {:error, reason} = Librex.convert(@docx_file, "/tmp/output.mp3")
     assert reason == "mp3 is not a supported output format"
   end
 
   test "convert! must raise error when output file has wrong extension" do
     msg = "mp3 is not a supported output format"
+
     assert_raise RuntimeError, msg, fn ->
       Librex.convert!(@docx_file, "/tmp/output.mp3")
     end
   end
 
   defp random_path do
-    System.tmp_dir! <> "/" <> SecureRandom.uuid
+    System.tmp_dir!() <> "/" <> SecureRandom.uuid()
   end
 end