chore: Switch to double-quotes for linting

.rubocop.yml

@@ -25,6 +25,9 @@ Naming/MethodParameterName:
 Style/Documentation:
   Enabled: false
 
+Style/StringLiterals:
+  EnforcedStyle: double_quotes
+
 AllCops:
   DisplayCopNames: true
   DisplayStyleGuide: true

Gemfile

@@ -1,8 +1,8 @@
 # frozen_string_literal: true
 
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
 # Specify your gem's dependencies in ffi-gdal.gemspec
 gemspec
 
-gem 'thor'
+gem "thor"

Rakefile

@@ -1,18 +1,18 @@
 # frozen_string_literal: true
 
-require 'bundler/gem_tasks'
-require 'rspec/core/rake_task'
+require "bundler/gem_tasks"
+require "rspec/core/rake_task"
 
 namespace :spec do
   RSpec::Core::RakeTask.new(:unit) do |t|
-    t.pattern = 'spec/unit/**/*_spec.rb'
+    t.pattern = "spec/unit/**/*_spec.rb"
   end
 
   RSpec::Core::RakeTask.new(:integration) do |t|
-    t.pattern = 'spec/integration/**/*_spec.rb'
+    t.pattern = "spec/integration/**/*_spec.rb"
   end
 
-  desc 'Run specs with valgrind'
+  desc "Run specs with valgrind"
   task :valgrind do
     valgrind_options = %w[
       --num-callers=50
@@ -22,7 +22,7 @@ namespace :spec do
       --show-leak-kinds=all
       --trace-children=yes
       --log-file=valgrind_output.log
-    ].join(' ')
+    ].join(" ")
 
     cmd = %(valgrind #{valgrind_options} bundle exec rake spec SPEC_OPTS="--format documentation")
     puts cmd

bin/bundle

@@ -8,7 +8,7 @@
 # this file is here to facilitate running it.
 #
 
-require 'rubygems'
+require "rubygems"
 
 m = Module.new do
   module_function
@@ -18,12 +18,12 @@ m = Module.new do
   end
 
   def env_var_version
-    ENV.fetch('BUNDLER_VERSION', nil)
+    ENV.fetch("BUNDLER_VERSION", nil)
   end
 
   def cli_arg_version
     return unless invoked_as_script? # don't want to hijack other binstubs
-    return unless 'update'.start_with?(ARGV.first || ' ') # must be running `bundle update`
+    return unless "update".start_with?(ARGV.first || " ") # must be running `bundle update`
 
     bundler_version = nil
     update_index = nil
@@ -38,16 +38,16 @@ m = Module.new do
   end
 
   def gemfile
-    gemfile = ENV.fetch('BUNDLE_GEMFILE', nil)
+    gemfile = ENV.fetch("BUNDLE_GEMFILE", nil)
     return gemfile if gemfile && !gemfile.empty?
 
-    File.expand_path('../Gemfile', __dir__)
+    File.expand_path("../Gemfile", __dir__)
   end
 
   def lockfile
     lockfile =
       case File.basename(gemfile)
-      when 'gems.rb' then gemfile.sub(/\.rb$/, gemfile)
+      when "gems.rb" then gemfile.sub(/\.rb$/, gemfile)
       else "#{gemfile}.lock"
       end
     File.expand_path(lockfile)
@@ -75,27 +75,27 @@ m = Module.new do
 
     requirement = bundler_gem_version.approximate_recommendation
 
-    return requirement unless Gem.rubygems_version < Gem::Version.new('2.7.0')
+    return requirement unless Gem.rubygems_version < Gem::Version.new("2.7.0")
 
-    requirement += '.a' if bundler_gem_version.prerelease?
+    requirement += ".a" if bundler_gem_version.prerelease?
 
     requirement
   end
 
   def load_bundler!
-    ENV['BUNDLE_GEMFILE'] ||= gemfile
+    ENV["BUNDLE_GEMFILE"] ||= gemfile
 
     activate_bundler
   end
 
   def activate_bundler
     gem_error = activation_error_handling do
-      gem 'bundler', bundler_requirement
+      gem "bundler", bundler_requirement
     end
     return if gem_error.nil?
 
     require_error = activation_error_handling do
-      require 'bundler/version'
+      require "bundler/version"
     end
     if require_error.nil? && Gem::Requirement.new(bundler_requirement).satisfied_by?(Gem::Version.new(Bundler::VERSION))
       return
@@ -120,4 +120,4 @@ end
 
 m.load_bundler!
 
-load Gem.bin_path('bundler', 'bundle') if m.invoked_as_script?
+load Gem.bin_path("bundler", "bundle") if m.invoked_as_script?

bin/rake

@@ -8,11 +8,11 @@
 # this file is here to facilitate running it.
 #
 
-require 'pathname'
-ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile',
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
                                            Pathname.new(__FILE__).realpath)
 
-bundle_binstub = File.expand_path('bundle', __dir__)
+bundle_binstub = File.expand_path("bundle", __dir__)
 
 if File.file?(bundle_binstub)
   if /This file was generated by Bundler/.match?(File.read(bundle_binstub, 300))
@@ -23,7 +23,7 @@ Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this
   end
 end
 
-require 'rubygems'
-require 'bundler/setup'
+require "rubygems"
+require "bundler/setup"
 
-load Gem.bin_path('rake', 'rake')
+load Gem.bin_path("rake", "rake")

bin/rspec

@@ -8,11 +8,11 @@
 # this file is here to facilitate running it.
 #
 
-require 'pathname'
-ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile',
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
                                            Pathname.new(__FILE__).realpath)
 
-bundle_binstub = File.expand_path('bundle', __dir__)
+bundle_binstub = File.expand_path("bundle", __dir__)
 
 if File.file?(bundle_binstub)
   if /This file was generated by Bundler/.match?(File.read(bundle_binstub, 300))
@@ -23,7 +23,7 @@ Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this
   end
 end
 
-require 'rubygems'
-require 'bundler/setup'
+require "rubygems"
+require "bundler/setup"
 
-load Gem.bin_path('rspec-core', 'rspec')
+load Gem.bin_path("rspec-core", "rspec")

bin/rubocop

@@ -8,11 +8,11 @@
 # this file is here to facilitate running it.
 #
 
-require 'pathname'
-ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile',
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
                                            Pathname.new(__FILE__).realpath)
 
-bundle_binstub = File.expand_path('bundle', __dir__)
+bundle_binstub = File.expand_path("bundle", __dir__)
 
 if File.file?(bundle_binstub)
   if /This file was generated by Bundler/.match?(File.read(bundle_binstub, 300))
@@ -23,7 +23,7 @@ Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this
   end
 end
 
-require 'rubygems'
-require 'bundler/setup'
+require "rubygems"
+require "bundler/setup"
 
-load Gem.bin_path('rubocop', 'rubocop')
+load Gem.bin_path("rubocop", "rubocop")

examples/extract_and_colorize.rb

@@ -1,64 +1,64 @@
 # frozen_string_literal: true
 
-require 'bundler/setup'
-require 'ffi-gdal'
+require "bundler/setup"
+require "ffi-gdal"
 
 GDAL::Logger.logging_enabled = true
 
 colors = %w[644d1e 745924 856728 95742b a5812d b69930 c8b22d d8cb3c e8e65a
             f4ee79 e0e457 c8da42 afd135 97b73c 7e993c 657e36 4b612c 314441 23295e
             282973]
 
-floyd_path = File.join(__dir__, '../spec/support/images/Floyd/Floyd_1058_20140612_NRGB.tif')
-floyd = GDAL::Dataset.open(floyd_path, 'r')
+floyd_path = File.join(__dir__, "../spec/support/images/Floyd/Floyd_1058_20140612_NRGB.tif")
+floyd = GDAL::Dataset.open(floyd_path, "r")
 
 #---
 # Extracting...
 #---
 
 # NIR
-floyd.extract_nir('nir.tif', 1).close
+floyd.extract_nir("nir.tif", 1).close
 
 # Natural Color
-floyd.extract_natural_color('nc.tif', band_order: %i[nir red green blue]).close
+floyd.extract_natural_color("nc.tif", band_order: %i[nir red green blue]).close
 
 # NDVI as Float32
-floyd.extract_ndvi('ndvi_float.tif', band_order: %i[nir red green blue],
+floyd.extract_ndvi("ndvi_float.tif", band_order: %i[nir red green blue],
                                      data_type: :GDT_Float32,
                                      remove_negatives: true).close
 
 # NDVI as Byte
-floyd.extract_ndvi('ndvi_byte.tif', band_order: %i[nir red green blue],
+floyd.extract_ndvi("ndvi_byte.tif", band_order: %i[nir red green blue],
                                     data_type: :GDT_Byte,
                                     remove_negatives: true,
-                                    photometric: 'PALETTE').close
+                                    photometric: "PALETTE").close
 
 # NDVI as UInt16
-floyd.extract_ndvi('ndvi_uint16.tif', band_order: %i[nir red green blue],
+floyd.extract_ndvi("ndvi_uint16.tif", band_order: %i[nir red green blue],
                                       data_type: :GDT_UInt16,
                                       remove_negatives: true,
-                                      photometric: 'PALETTE').close
+                                      photometric: "PALETTE").close
 
 #---
 # Colorize after extraction...
 #---
 
-byte_dataset = GDAL::Dataset.open('ndvi_byte.tif', 'w')
+byte_dataset = GDAL::Dataset.open("ndvi_byte.tif", "w")
 byte_band = byte_dataset.raster_band(1)
 byte_band.colorize!(*colors)
 byte_dataset.close
 
-uint16_dataset = GDAL::Dataset.open('ndvi_uint16.tif', 'w')
+uint16_dataset = GDAL::Dataset.open("ndvi_uint16.tif", "w")
 uint16_band = uint16_dataset.raster_band(1)
 uint16_band.colorize!(*colors)
 uint16_dataset.close
 
-g_byte_dataset = GDAL::Dataset.open('gndvi_byte.tif', 'w')
+g_byte_dataset = GDAL::Dataset.open("gndvi_byte.tif", "w")
 g_byte_band = g_byte_dataset.raster_band(1)
 g_byte_band.colorize!(*colors)
 g_byte_dataset.close
 
-g_uint16_dataset = GDAL::Dataset.open('gndvi_uint16.tif', 'w')
+g_uint16_dataset = GDAL::Dataset.open("gndvi_uint16.tif", "w")
 g_uint16_band = g_uint16_dataset.raster_band(1)
 g_uint16_band.colorize!(*colors)
 g_uint16_dataset.close

examples/geometries.rb

@@ -1,30 +1,30 @@
 # frozen_string_literal: true
 
-require 'bundler/setup'
-require 'ffi-gdal'
-require 'ogr'
+require "bundler/setup"
+require "ffi-gdal"
+require "ogr"
 
-_data_source = OGR::DataSource.open('spec/support/shapefiles/states_21basic/states.shp', 'r')
+_data_source = OGR::DataSource.open("spec/support/shapefiles/states_21basic/states.shp", "r")
 
-point_wkt = 'POINT (1 2)'
+point_wkt = "POINT (1 2)"
 _point = OGR::Geometry.create_from_wkt(point_wkt)
-_other_point_wkt = 'POINT (1 2)'
+_other_point_wkt = "POINT (1 2)"
 _other_point = OGR::Geometry.create_from_wkt(point_wkt)
 
-line_string_wkt = 'LINESTRING (1 2, 10 30, 40 40, 1 2)'
+line_string_wkt = "LINESTRING (1 2, 10 30, 40 40, 1 2)"
 _line_string = OGR::Geometry.create_from_wkt(line_string_wkt)
-other_line_string_wkt = 'LINESTRING (10 10, 0 30, 40 10)'
+other_line_string_wkt = "LINESTRING (10 10, 0 30, 40 10)"
 _other_line_string = OGR::Geometry.create_from_wkt(other_line_string_wkt)
 
-polygon_wkt = 'POLYGON ((0 0,4 0,4 4,0 4,0 0), (1 1, 2 1, 2 2, 1 1))'
+polygon_wkt = "POLYGON ((0 0,4 0,4 4,0 4,0 0), (1 1, 2 1, 2 2, 1 1))"
 _polygon = OGR::Geometry.create_from_wkt(polygon_wkt)
-other_polygon_wkt = 'POLYGON ((1 1,5 1,5 5,1 5,1 1), (10 10, 20 10, 20 20, 10 10))'
+other_polygon_wkt = "POLYGON ((1 1,5 1,5 5,1 5,1 1), (10 10, 20 10, 20 20, 10 10))"
 _other_polygon = OGR::Geometry.create_from_wkt(other_polygon_wkt)
 
-multi_point_wkt = 'MULTIPOINT ((10 40), (40 30), (20 20), (30 10))'
+multi_point_wkt = "MULTIPOINT ((10 40), (40 30), (20 20), (30 10))"
 _multi_point = OGR::Geometry.create_from_wkt(multi_point_wkt)
 
-multi_line_string_wkt = 'MULTILINESTRING ((10 10, 20 20, 10 40), (40 40, 30 30, 40 20, 30 10))'
+multi_line_string_wkt = "MULTILINESTRING ((10 10, 20 20, 10 40), (40 40, 30 30, 40 20, 30 10))"
 _multi_line_string = OGR::Geometry.create_from_wkt(multi_line_string_wkt)
 
 multi_polygon_wkt = <<-WKT