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unsafe, but
LAYOUT :: RUBOCOP DOCS Layout/BeginEndAlignment. This cop checks whether the end keyword of begin is aligned properly. Two modes are supported through the EnforcedStyleAlignWith configuration parameter. If it’s set to start_of_line (which is the default), the end shall be aligned withthe start of
SECURITY :: RUBOCOP DOCS 0.44. This cop checks for the use of JSON class methods which have potential security issues. Autocorrect is disabled by default because it’s potentially dangerous. If using a stream, like JSON.load (open ('file')), it will need to call #read manually, like JSON.parse (open ('file').read) . If reading single values (rather than proper JSON NAMING :: RUBOCOP DOCS AllowedNames config takes an array of permitted names. Its default value is . These names can be full class/module names or part of the name. eg. Adding my_class to the AllowedNames config will allow names like my_class, my_class::User, App::my_class, App::my_class::User, etc. RUBOCOP | THE RUBY LINTER/FORMATTER THAT SERVES AND PROTECTS RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide. RuboCop is extremely flexible and most aspects of its behavior can be tweaked via various configuration options. In practice RuboCop supports pretty much every (reasonably popular) coding style that you can think of. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter: Auto-correction of many of the code offenses it detects. BASIC USAGE :: RUBOCOP DOCS RuboCop as a replacement for ruby -w. RuboCop as a formatter. Command-line flags. Exit codes. RuboCop has three primary uses: Code style checker (a.k.a. linter) A replacement for ruby -w (a subset of its linting capabilities) Code formatter. In the next sections we’ll briefly cover all of them. INSTALLATION :: RUBOCOP DOCS RuboCop is stable between major versions, both in terms of API and cop configuration. We aim the ease the maintenance of RuboCop extensions and the upgrades between RuboCop releases. RUBOCOP AST :: RUBOCOP DOCS RuboCop::AST::Node - this is an extension of the parser gem’s Node class, which adds a simpler and more powerful object-oriented API to make it easier to work with nodes.. RuboCop::AST::NodePattern - a regular expression-style method to traverse and match nodes in an Abstract Syntax Tree. See "Node Pattern" to get yourself familiar with NodePattern's capabilities. CONFIGURATION :: RUBOCOP DOCS Configuration. The behavior of RuboCop can be controlled via the .rubocop.yml configuration file. It makes it possible to enable/disable certain cops (checks) and to alter their behavior if they accept any parameters. The file can be placed in your home directory, XDG config directory, or in AUTO-CORRECT :: RUBOCOP DOCS In RuboCop 0.60, we began to annotate cops as Safe or not safe. The definition of safety is that the cop doesn’t generate false positives. On top of that there’s SafeAutoCorrect that might be set to false in cases where only the auto-correct performed by a cop isunsafe, but
LAYOUT :: RUBOCOP DOCS Layout/BeginEndAlignment. This cop checks whether the end keyword of begin is aligned properly. Two modes are supported through the EnforcedStyleAlignWith configuration parameter. If it’s set to start_of_line (which is the default), the end shall be aligned withthe start of
SECURITY :: RUBOCOP DOCS 0.44. This cop checks for the use of JSON class methods which have potential security issues. Autocorrect is disabled by default because it’s potentially dangerous. If using a stream, like JSON.load (open ('file')), it will need to call #read manually, like JSON.parse (open ('file').read) . If reading single values (rather than proper JSON NAMING :: RUBOCOP DOCS AllowedNames config takes an array of permitted names. Its default value is . These names can be full class/module names or part of the name. eg. Adding my_class to the AllowedNames config will allow names like my_class, my_class::User, App::my_class, App::my_class::User, etc. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter: Auto-correction of many of the code offenses it detects. CONFIGURATION :: RUBOCOP DOCS The optional inherit_from directive is used to include configuration from one or more files. This makes it possible to have the common project settings in the .rubocop.yml file at the project root, and then only the deviations from those rules in the subdirectories. The files can be given with absolute paths or paths relative to the file where they are referenced. RUBOCOP PERFORMANCE :: RUBOCOP DOCS RuboCop Performance. Performance optimization analysis for your projects, as an extension to RuboCop. Installation. RAILS :: RUBOCOP DOCS However, without knowing whether they’ve set overridden the default value of config.active_record.belongs_to_required_by_default, we can’t say whether it’s safe to remove required: true or whether we should replace it with optional: false (or, similarly, remove a superfluous optional: false).Therefore, in the cases we’re using required: true, we’ll simply invert it to optional: false METRICS :: RUBOCOP DOCS This cop tries to produce a complexity score that’s a measure of the complexity the reader experiences when looking at a method. For that reason it considers when nodes as something that doesn’t add as much complexity as an if or a &&.Except if it’s one of those special case/when constructs where there’s no expression after case.Then the cop treats it as an if/elsif/elsif RUBOCOP RAILS :: RUBOCOP DOCS RuboCop Rails. A RuboCop extension focused on enforcing Rails best practices and coding conventions. It’s based on the community-driven Rails style guide. Installation. INSTALLATION :: RUBOCOP DOCS Installation. Just install the rubocop-rails gem. gem install rubocop-rails. sh. Copied! or if you use bundler put this in your Gemfile. gem 'rubocop-rails'. ruby. Copied! FORMATTERS :: RUBOCOP DOCS You can change the output format of RuboCop by specifying formatters with the -f/--format option. RuboCop ships with several built-in formatters, and also you can create your custom formatter. COPS :: RUBOCOP DOCS Cops. In RuboCop lingo the various checks performed on the code are called cops. Each cop is responsible for detecting one particular offense. There are several cop departments, grouping the cops by class of offense. A short description of the different departments is provided below. Many of the Style and Layout cops have configurationoptions
RSPEC :: RUBOCOP DOCS RSpec allows for auto-generated example descriptions when there is no description provided or the description is an empty one. This cop removes empty descriptions. It also defines whether auto-generated description is allowed, based on the configured style. This cop can be configured using the EnforcedStyle option. RUBOCOP | THE RUBY LINTER/FORMATTER THAT SERVES AND PROTECTS RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide. RuboCop is extremely flexible and most aspects of its behavior can be tweaked via various configuration options. In practice RuboCop supports pretty much every (reasonably popular) coding style that you can think of. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter: Auto-correction of many of the code offenses it detects. BASIC USAGE :: RUBOCOP DOCS RuboCop as a replacement for ruby -w. RuboCop as a formatter. Command-line flags. Exit codes. RuboCop has three primary uses: Code style checker (a.k.a. linter) A replacement for ruby -w (a subset of its linting capabilities) Code formatter. In the next sections we’ll briefly cover all of them. INSTALLATION :: RUBOCOP DOCS RuboCop is stable between major versions, both in terms of API and cop configuration. We aim the ease the maintenance of RuboCop extensions and the upgrades between RuboCop releases. RUBOCOP AST :: RUBOCOP DOCS RuboCop::AST::Node - this is an extension of the parser gem’s Node class, which adds a simpler and more powerful object-oriented API to make it easier to work with nodes.. RuboCop::AST::NodePattern - a regular expression-style method to traverse and match nodes in an Abstract Syntax Tree. See "Node Pattern" to get yourself familiar with NodePattern's capabilities. CONFIGURATION :: RUBOCOP DOCS Configuration. The behavior of RuboCop can be controlled via the .rubocop.yml configuration file. It makes it possible to enable/disable certain cops (checks) and to alter their behavior if they accept any parameters. The file can be placed in your home directory, XDG config directory, or in AUTO-CORRECT :: RUBOCOP DOCS In RuboCop 0.60, we began to annotate cops as Safe or not safe. The definition of safety is that the cop doesn’t generate false positives. On top of that there’s SafeAutoCorrect that might be set to false in cases where only the auto-correct performed by a cop isunsafe, but
LAYOUT :: RUBOCOP DOCS Layout/BeginEndAlignment. This cop checks whether the end keyword of begin is aligned properly. Two modes are supported through the EnforcedStyleAlignWith configuration parameter. If it’s set to start_of_line (which is the default), the end shall be aligned withthe start of
SECURITY :: RUBOCOP DOCS 0.44. This cop checks for the use of JSON class methods which have potential security issues. Autocorrect is disabled by default because it’s potentially dangerous. If using a stream, like JSON.load (open ('file')), it will need to call #read manually, like JSON.parse (open ('file').read) . If reading single values (rather than proper JSON NAMING :: RUBOCOP DOCS AllowedNames config takes an array of permitted names. Its default value is . These names can be full class/module names or part of the name. eg. Adding my_class to the AllowedNames config will allow names like my_class, my_class::User, App::my_class, App::my_class::User, etc. RUBOCOP | THE RUBY LINTER/FORMATTER THAT SERVES AND PROTECTS RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide. RuboCop is extremely flexible and most aspects of its behavior can be tweaked via various configuration options. In practice RuboCop supports pretty much every (reasonably popular) coding style that you can think of. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter: Auto-correction of many of the code offenses it detects. BASIC USAGE :: RUBOCOP DOCS RuboCop as a replacement for ruby -w. RuboCop as a formatter. Command-line flags. Exit codes. RuboCop has three primary uses: Code style checker (a.k.a. linter) A replacement for ruby -w (a subset of its linting capabilities) Code formatter. In the next sections we’ll briefly cover all of them. INSTALLATION :: RUBOCOP DOCS RuboCop is stable between major versions, both in terms of API and cop configuration. We aim the ease the maintenance of RuboCop extensions and the upgrades between RuboCop releases. RUBOCOP AST :: RUBOCOP DOCS RuboCop::AST::Node - this is an extension of the parser gem’s Node class, which adds a simpler and more powerful object-oriented API to make it easier to work with nodes.. RuboCop::AST::NodePattern - a regular expression-style method to traverse and match nodes in an Abstract Syntax Tree. See "Node Pattern" to get yourself familiar with NodePattern's capabilities. CONFIGURATION :: RUBOCOP DOCS Configuration. The behavior of RuboCop can be controlled via the .rubocop.yml configuration file. It makes it possible to enable/disable certain cops (checks) and to alter their behavior if they accept any parameters. The file can be placed in your home directory, XDG config directory, or in AUTO-CORRECT :: RUBOCOP DOCS In RuboCop 0.60, we began to annotate cops as Safe or not safe. The definition of safety is that the cop doesn’t generate false positives. On top of that there’s SafeAutoCorrect that might be set to false in cases where only the auto-correct performed by a cop isunsafe, but
LAYOUT :: RUBOCOP DOCS Layout/BeginEndAlignment. This cop checks whether the end keyword of begin is aligned properly. Two modes are supported through the EnforcedStyleAlignWith configuration parameter. If it’s set to start_of_line (which is the default), the end shall be aligned withthe start of
SECURITY :: RUBOCOP DOCS 0.44. This cop checks for the use of JSON class methods which have potential security issues. Autocorrect is disabled by default because it’s potentially dangerous. If using a stream, like JSON.load (open ('file')), it will need to call #read manually, like JSON.parse (open ('file').read) . If reading single values (rather than proper JSON NAMING :: RUBOCOP DOCS AllowedNames config takes an array of permitted names. Its default value is . These names can be full class/module names or part of the name. eg. Adding my_class to the AllowedNames config will allow names like my_class, my_class::User, App::my_class, App::my_class::User, etc. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter: Auto-correction of many of the code offenses it detects. CONFIGURATION :: RUBOCOP DOCS The optional inherit_from directive is used to include configuration from one or more files. This makes it possible to have the common project settings in the .rubocop.yml file at the project root, and then only the deviations from those rules in the subdirectories. The files can be given with absolute paths or paths relative to the file where they are referenced. RUBOCOP PERFORMANCE :: RUBOCOP DOCS RuboCop Performance. Performance optimization analysis for your projects, as an extension to RuboCop. Installation. RAILS :: RUBOCOP DOCS However, without knowing whether they’ve set overridden the default value of config.active_record.belongs_to_required_by_default, we can’t say whether it’s safe to remove required: true or whether we should replace it with optional: false (or, similarly, remove a superfluous optional: false).Therefore, in the cases we’re using required: true, we’ll simply invert it to optional: false METRICS :: RUBOCOP DOCS This cop tries to produce a complexity score that’s a measure of the complexity the reader experiences when looking at a method. For that reason it considers when nodes as something that doesn’t add as much complexity as an if or a &&.Except if it’s one of those special case/when constructs where there’s no expression after case.Then the cop treats it as an if/elsif/elsif RUBOCOP RAILS :: RUBOCOP DOCS RuboCop Rails. A RuboCop extension focused on enforcing Rails best practices and coding conventions. It’s based on the community-driven Rails style guide. Installation. INSTALLATION :: RUBOCOP DOCS Installation. Just install the rubocop-rails gem. gem install rubocop-rails. sh. Copied! or if you use bundler put this in your Gemfile. gem 'rubocop-rails'. ruby. Copied! FORMATTERS :: RUBOCOP DOCS You can change the output format of RuboCop by specifying formatters with the -f/--format option. RuboCop ships with several built-in formatters, and also you can create your custom formatter. COPS :: RUBOCOP DOCS Cops. In RuboCop lingo the various checks performed on the code are called cops. Each cop is responsible for detecting one particular offense. There are several cop departments, grouping the cops by class of offense. A short description of the different departments is provided below. Many of the Style and Layout cops have configurationoptions
RSPEC :: RUBOCOP DOCS RSpec allows for auto-generated example descriptions when there is no description provided or the description is an empty one. This cop removes empty descriptions. It also defines whether auto-generated description is allowed, based on the configured style. This cop can be configured using the EnforcedStyle option. RUBOCOP | THE RUBY LINTER/FORMATTER THAT SERVES AND PROTECTS RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide. RuboCop is extremely flexible and most aspects of its behavior can be tweaked via various configuration options. In practice RuboCop supports pretty much every (reasonably popular) coding style that you can think of. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter: Auto-correction of many of the code offenses it detects. BASIC USAGE :: RUBOCOP DOCS RuboCop as a replacement for ruby -w. RuboCop as a formatter. Command-line flags. Exit codes. RuboCop has three primary uses: Code style checker (a.k.a. linter) A replacement for ruby -w (a subset of its linting capabilities) Code formatter. In the next sections we’ll briefly cover all of them. INSTALLATION :: RUBOCOP DOCS RuboCop is stable between major versions, both in terms of API and cop configuration. We aim the ease the maintenance of RuboCop extensions and the upgrades between RuboCop releases. CONFIGURATION :: RUBOCOP DOCS Configuration. The behavior of RuboCop can be controlled via the .rubocop.yml configuration file. It makes it possible to enable/disable certain cops (checks) and to alter their behavior if they accept any parameters. The file can be placed in your home directory, XDG config directory, or in RUBOCOP AST :: RUBOCOP DOCS RuboCop::AST::Node - this is an extension of the parser gem’s Node class, which adds a simpler and more powerful object-oriented API to make it easier to work with nodes.. RuboCop::AST::NodePattern - a regular expression-style method to traverse and match nodes in an Abstract Syntax Tree. See "Node Pattern" to get yourself familiar with NodePattern's capabilities. LAYOUT :: RUBOCOP DOCS Layout/BeginEndAlignment. This cop checks whether the end keyword of begin is aligned properly. Two modes are supported through the EnforcedStyleAlignWith configuration parameter. If it’s set to start_of_line (which is the default), the end shall be aligned withthe start of
AUTO-CORRECT :: RUBOCOP DOCS In RuboCop 0.60, we began to annotate cops as Safe or not safe. The definition of safety is that the cop doesn’t generate false positives. On top of that there’s SafeAutoCorrect that might be set to false in cases where only the auto-correct performed by a cop isunsafe, but
RAILS :: RUBOCOP DOCS However, without knowing whether they’ve set overridden the default value of config.active_record.belongs_to_required_by_default, we can’t say whether it’s safe to remove required: true or whether we should replace it with optional: false (or, similarly, remove a superfluous optional: false).Therefore, in the cases we’re using required: true, we’ll simply invert it to optional: false STYLE :: RUBOCOP DOCS Access modifiers should be declared to apply to a group of methods or inline before each method, depending on configuration. EnforcedStyle config covers only method definitions. RUBOCOP | THE RUBY LINTER/FORMATTER THAT SERVES AND PROTECTS RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide. RuboCop is extremely flexible and most aspects of its behavior can be tweaked via various configuration options. In practice RuboCop supports pretty much every (reasonably popular) coding style that you can think of. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter: Auto-correction of many of the code offenses it detects. BASIC USAGE :: RUBOCOP DOCS RuboCop as a replacement for ruby -w. RuboCop as a formatter. Command-line flags. Exit codes. RuboCop has three primary uses: Code style checker (a.k.a. linter) A replacement for ruby -w (a subset of its linting capabilities) Code formatter. In the next sections we’ll briefly cover all of them. INSTALLATION :: RUBOCOP DOCS RuboCop is stable between major versions, both in terms of API and cop configuration. We aim the ease the maintenance of RuboCop extensions and the upgrades between RuboCop releases. CONFIGURATION :: RUBOCOP DOCS Configuration. The behavior of RuboCop can be controlled via the .rubocop.yml configuration file. It makes it possible to enable/disable certain cops (checks) and to alter their behavior if they accept any parameters. The file can be placed in your home directory, XDG config directory, or in RUBOCOP AST :: RUBOCOP DOCS RuboCop::AST::Node - this is an extension of the parser gem’s Node class, which adds a simpler and more powerful object-oriented API to make it easier to work with nodes.. RuboCop::AST::NodePattern - a regular expression-style method to traverse and match nodes in an Abstract Syntax Tree. See "Node Pattern" to get yourself familiar with NodePattern's capabilities. LAYOUT :: RUBOCOP DOCS Layout/BeginEndAlignment. This cop checks whether the end keyword of begin is aligned properly. Two modes are supported through the EnforcedStyleAlignWith configuration parameter. If it’s set to start_of_line (which is the default), the end shall be aligned withthe start of
AUTO-CORRECT :: RUBOCOP DOCS In RuboCop 0.60, we began to annotate cops as Safe or not safe. The definition of safety is that the cop doesn’t generate false positives. On top of that there’s SafeAutoCorrect that might be set to false in cases where only the auto-correct performed by a cop isunsafe, but
RAILS :: RUBOCOP DOCS However, without knowing whether they’ve set overridden the default value of config.active_record.belongs_to_required_by_default, we can’t say whether it’s safe to remove required: true or whether we should replace it with optional: false (or, similarly, remove a superfluous optional: false).Therefore, in the cases we’re using required: true, we’ll simply invert it to optional: false STYLE :: RUBOCOP DOCS Access modifiers should be declared to apply to a group of methods or inline before each method, depending on configuration. EnforcedStyle config covers only method definitions. RUBOCOP AST :: RUBOCOP DOCS RuboCop::AST::Node - this is an extension of the parser gem’s Node class, which adds a simpler and more powerful object-oriented API to make it easier to work with nodes.. RuboCop::AST::NodePattern - a regular expression-style method to traverse and match nodes in an Abstract Syntax Tree. See "Node Pattern" to get yourself familiar with NodePattern's capabilities. STYLE :: RUBOCOP DOCS Access modifiers should be declared to apply to a group of methods or inline before each method, depending on configuration. EnforcedStyle config covers only method definitions. RUBOCOP PERFORMANCE :: RUBOCOP DOCS RuboCop Performance. Performance optimization analysis for your projects, as an extension to RuboCop. Installation. RUBOCOP RAILS :: RUBOCOP DOCS RuboCop Rails. A RuboCop extension focused on enforcing Rails best practices and coding conventions. It’s based on the community-driven Rails style guide. Installation. FORMATTERS :: RUBOCOP DOCS You can change the output format of RuboCop by specifying formatters with the -f/--format option. RuboCop ships with several built-in formatters, and also you can create your custom formatter. INSTALLATION :: RUBOCOP DOCS Installation. Just install the rubocop-rails gem. gem install rubocop-rails. sh. Copied! or if you use bundler put this in your Gemfile. gem 'rubocop-rails'. ruby. Copied! SECURITY :: RUBOCOP DOCS 0.44. This cop checks for the use of JSON class methods which have potential security issues. Autocorrect is disabled by default because it’s potentially dangerous. If using a stream, like JSON.load (open ('file')), it will need to call #read manually, like JSON.parse (open ('file').read) . If reading single values (rather than proper JSON NAMING :: RUBOCOP DOCS When set to false, this cop will register offenses for names ending with numbers. Its default is false. The AllowedNames config option takes an array of permitted names that will never register an offense. The ForbiddenNames config option takes an array of restricted names that will always register an offense. COPS :: RUBOCOP DOCS Cops. In RuboCop lingo the various checks performed on the code are called cops. Each cop is responsible for detecting one particular offense. There are several cop departments, grouping the cops by class of offense. A short description of the different departments is provided below. Many of the Style and Layout cops have configurationoptions
PERFORMANCE :: RUBOCOP DOCS 0.59. Reordering when conditions with a splat to the end of the when branches can improve performance. Ruby has to allocate memory for the splat expansion every time that the case when statement is run. Since Ruby does not support fall through inside of case when, like some other languages do, the order of the when branches should not matter. RUBOCOP | THE RUBY LINTER/FORMATTER THAT SERVES AND PROTECTS RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide. RuboCop is extremely flexible and most aspects of its behavior can be tweaked via various configuration options. In practice RuboCop supports pretty much every (reasonably popular) coding style that you can think of. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter: Auto-correction of many of the code offenses it detects. BASIC USAGE :: RUBOCOP DOCS RuboCop as a replacement for ruby -w. RuboCop as a formatter. Command-line flags. Exit codes. RuboCop has three primary uses: Code style checker (a.k.a. linter) A replacement for ruby -w (a subset of its linting capabilities) Code formatter. In the next sections we’ll briefly cover all of them. INSTALLATION :: RUBOCOP DOCS RuboCop is stable between major versions, both in terms of API and cop configuration. We aim the ease the maintenance of RuboCop extensions and the upgrades between RuboCop releases. CONFIGURATION :: RUBOCOP DOCS Configuration. The behavior of RuboCop can be controlled via the .rubocop.yml configuration file. It makes it possible to enable/disable certain cops (checks) and to alter their behavior if they accept any parameters. The file can be placed in your home directory, XDG config directory, or in RUBOCOP AST :: RUBOCOP DOCS RuboCop::AST::Node - this is an extension of the parser gem’s Node class, which adds a simpler and more powerful object-oriented API to make it easier to work with nodes.. RuboCop::AST::NodePattern - a regular expression-style method to traverse and match nodes in an Abstract Syntax Tree. See "Node Pattern" to get yourself familiar with NodePattern's capabilities. LAYOUT :: RUBOCOP DOCS Layout/BeginEndAlignment. This cop checks whether the end keyword of begin is aligned properly. Two modes are supported through the EnforcedStyleAlignWith configuration parameter. If it’s set to start_of_line (which is the default), the end shall be aligned withthe start of
AUTO-CORRECT :: RUBOCOP DOCS In RuboCop 0.60, we began to annotate cops as Safe or not safe. The definition of safety is that the cop doesn’t generate false positives. On top of that there’s SafeAutoCorrect that might be set to false in cases where only the auto-correct performed by a cop isunsafe, but
RAILS :: RUBOCOP DOCS However, without knowing whether they’ve set overridden the default value of config.active_record.belongs_to_required_by_default, we can’t say whether it’s safe to remove required: true or whether we should replace it with optional: false (or, similarly, remove a superfluous optional: false).Therefore, in the cases we’re using required: true, we’ll simply invert it to optional: false STYLE :: RUBOCOP DOCS Access modifiers should be declared to apply to a group of methods or inline before each method, depending on configuration. EnforcedStyle config covers only method definitions. RUBOCOP | THE RUBY LINTER/FORMATTER THAT SERVES AND PROTECTS RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide. RuboCop is extremely flexible and most aspects of its behavior can be tweaked via various configuration options. In practice RuboCop supports pretty much every (reasonably popular) coding style that you can think of. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter: Auto-correction of many of the code offenses it detects. BASIC USAGE :: RUBOCOP DOCS RuboCop as a replacement for ruby -w. RuboCop as a formatter. Command-line flags. Exit codes. RuboCop has three primary uses: Code style checker (a.k.a. linter) A replacement for ruby -w (a subset of its linting capabilities) Code formatter. In the next sections we’ll briefly cover all of them. INSTALLATION :: RUBOCOP DOCS RuboCop is stable between major versions, both in terms of API and cop configuration. We aim the ease the maintenance of RuboCop extensions and the upgrades between RuboCop releases. CONFIGURATION :: RUBOCOP DOCS Configuration. The behavior of RuboCop can be controlled via the .rubocop.yml configuration file. It makes it possible to enable/disable certain cops (checks) and to alter their behavior if they accept any parameters. The file can be placed in your home directory, XDG config directory, or in RUBOCOP AST :: RUBOCOP DOCS RuboCop::AST::Node - this is an extension of the parser gem’s Node class, which adds a simpler and more powerful object-oriented API to make it easier to work with nodes.. RuboCop::AST::NodePattern - a regular expression-style method to traverse and match nodes in an Abstract Syntax Tree. See "Node Pattern" to get yourself familiar with NodePattern's capabilities. LAYOUT :: RUBOCOP DOCS Layout/BeginEndAlignment. This cop checks whether the end keyword of begin is aligned properly. Two modes are supported through the EnforcedStyleAlignWith configuration parameter. If it’s set to start_of_line (which is the default), the end shall be aligned withthe start of
AUTO-CORRECT :: RUBOCOP DOCS In RuboCop 0.60, we began to annotate cops as Safe or not safe. The definition of safety is that the cop doesn’t generate false positives. On top of that there’s SafeAutoCorrect that might be set to false in cases where only the auto-correct performed by a cop isunsafe, but
RAILS :: RUBOCOP DOCS However, without knowing whether they’ve set overridden the default value of config.active_record.belongs_to_required_by_default, we can’t say whether it’s safe to remove required: true or whether we should replace it with optional: false (or, similarly, remove a superfluous optional: false).Therefore, in the cases we’re using required: true, we’ll simply invert it to optional: false STYLE :: RUBOCOP DOCS Access modifiers should be declared to apply to a group of methods or inline before each method, depending on configuration. EnforcedStyle config covers only method definitions. RUBOCOP AST :: RUBOCOP DOCS RuboCop::AST::Node - this is an extension of the parser gem’s Node class, which adds a simpler and more powerful object-oriented API to make it easier to work with nodes.. RuboCop::AST::NodePattern - a regular expression-style method to traverse and match nodes in an Abstract Syntax Tree. See "Node Pattern" to get yourself familiar with NodePattern's capabilities. RUBOCOP PERFORMANCE :: RUBOCOP DOCS RuboCop Performance. Performance optimization analysis for your projects, as an extension to RuboCop. Installation. STYLE :: RUBOCOP DOCS Access modifiers should be declared to apply to a group of methods or inline before each method, depending on configuration. EnforcedStyle config covers only method definitions. RUBOCOP RAILS :: RUBOCOP DOCS RuboCop Rails. A RuboCop extension focused on enforcing Rails best practices and coding conventions. It’s based on the community-driven Rails style guide. Installation. FORMATTERS :: RUBOCOP DOCS You can change the output format of RuboCop by specifying formatters with the -f/--format option. RuboCop ships with several built-in formatters, and also you can create your custom formatter. INSTALLATION :: RUBOCOP DOCS Installation. Just install the rubocop-rails gem. gem install rubocop-rails. sh. Copied! or if you use bundler put this in your Gemfile. gem 'rubocop-rails'. ruby. Copied! SECURITY :: RUBOCOP DOCS 0.44. This cop checks for the use of JSON class methods which have potential security issues. Autocorrect is disabled by default because it’s potentially dangerous. If using a stream, like JSON.load (open ('file')), it will need to call #read manually, like JSON.parse (open ('file').read) . If reading single values (rather than proper JSON NAMING :: RUBOCOP DOCS The MinNameLength config option takes an integer. It represents the minimum amount of characters the name must be. Its default is 1. The AllowNamesEndingInNumbers config option takes a boolean. When set to false, this cop will register offenses for names ending with numbers. COPS :: RUBOCOP DOCS Cops. In RuboCop lingo the various checks performed on the code are called cops. Each cop is responsible for detecting one particular offense. There are several cop departments, grouping the cops by class of offense. A short description of the different departments is provided below. Many of the Style and Layout cops have configurationoptions
PERFORMANCE :: RUBOCOP DOCS 0.59. Reordering when conditions with a splat to the end of the when branches can improve performance. Ruby has to allocate memory for the splat expansion every time that the case when statement is run. Since Ruby does not support fall through inside of case when, like some other languages do, the order of the when branches should not matter. RUBOCOP | THE RUBY LINTER/FORMATTER THAT SERVES AND PROTECTS Overview. RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide.. RuboCop is extremely flexible and most aspects of its behavior can be tweaked via various configuration options. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. BASIC USAGE :: RUBOCOP DOCS Inspecting 1 file W Offenses: test.rb:1:1: C: Style/FrozenStringLiteralComment: Missing magic comment # frozen_string_literal: true. def badName ^ test.rb:1:5: C CONFIGURATION :: RUBOCOP DOCS The optional inherit_from directive is used to include configuration from one or more files. This makes it possible to have the common project settings in the .rubocop.yml file at the project root, and then only the deviations from those rules in the subdirectories. The files can be given with absolute paths or paths relative to the file where they are referenced. INSTALLATION :: RUBOCOP DOCS RuboCop is stable between major versions, both in terms of API and cop configuration. We aim the ease the maintenance of RuboCop extensions and the upgrades between RuboCop releases. SECURITY :: RUBOCOP DOCS Autocorrect is disabled by default because it’s potentially dangerous. If using a stream, like JSON.load(open('file')), it will need to call #read manually, like JSON.parse(open('file').read).If reading single values (rather than proper JSON objects), like JSON.load('false'), it will need to pass the quirks_mode: true option, like JSON.parse('false', quirks_mode: true). LAYOUT :: RUBOCOP DOCS # bad some_method( a, b ) some_method( a, b ) some_method(a, b, c ) some_method(a, b, c ) some_method(a, x: 1, y: 2 ) # Scenario 1: When First Parameter Is On Its Own Line # good: when first param is on a new line, right paren is *always* # outdented by IndentationWidth some_method( a, b ) # good some_method( a, b ) # Scenario 2: When First Parameter Is On The Same Line # good: when all RAILS :: RUBOCOP DOCS However, without knowing whether they’ve set overridden the default value of config.active_record.belongs_to_required_by_default, we can’t say whether it’s safe to remove required: true or whether we should replace it with optional: false (or, similarly, remove a superfluous optional: false).Therefore, in the cases we’re using required: true, we’ll simply invert it to optional: false AUTO-CORRECT :: RUBOCOP DOCS In RuboCop 0.60, we began to annotate cops as Safe or not safe. The definition of safety is that the cop doesn’t generate false positives. On top of that there’s SafeAutoCorrect that might be set to false in cases where only the auto-correct performed by a cop isunsafe, but
STYLE :: RUBOCOP DOCS Access modifiers should be declared to apply to a group of methods or inline before each method, depending on configuration. EnforcedStyle config covers only method definitions. RUBOCOP | THE RUBY LINTER/FORMATTER THAT SERVES AND PROTECTS Overview. RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide.. RuboCop is extremely flexible and most aspects of its behavior can be tweaked via various configuration options. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. BASIC USAGE :: RUBOCOP DOCS Inspecting 1 file W Offenses: test.rb:1:1: C: Style/FrozenStringLiteralComment: Missing magic comment # frozen_string_literal: true. def badName ^ test.rb:1:5: C CONFIGURATION :: RUBOCOP DOCS The optional inherit_from directive is used to include configuration from one or more files. This makes it possible to have the common project settings in the .rubocop.yml file at the project root, and then only the deviations from those rules in the subdirectories. The files can be given with absolute paths or paths relative to the file where they are referenced. INSTALLATION :: RUBOCOP DOCS RuboCop is stable between major versions, both in terms of API and cop configuration. We aim the ease the maintenance of RuboCop extensions and the upgrades between RuboCop releases. SECURITY :: RUBOCOP DOCS Autocorrect is disabled by default because it’s potentially dangerous. If using a stream, like JSON.load(open('file')), it will need to call #read manually, like JSON.parse(open('file').read).If reading single values (rather than proper JSON objects), like JSON.load('false'), it will need to pass the quirks_mode: true option, like JSON.parse('false', quirks_mode: true). LAYOUT :: RUBOCOP DOCS # bad some_method( a, b ) some_method( a, b ) some_method(a, b, c ) some_method(a, b, c ) some_method(a, x: 1, y: 2 ) # Scenario 1: When First Parameter Is On Its Own Line # good: when first param is on a new line, right paren is *always* # outdented by IndentationWidth some_method( a, b ) # good some_method( a, b ) # Scenario 2: When First Parameter Is On The Same Line # good: when all RAILS :: RUBOCOP DOCS However, without knowing whether they’ve set overridden the default value of config.active_record.belongs_to_required_by_default, we can’t say whether it’s safe to remove required: true or whether we should replace it with optional: false (or, similarly, remove a superfluous optional: false).Therefore, in the cases we’re using required: true, we’ll simply invert it to optional: false AUTO-CORRECT :: RUBOCOP DOCS In RuboCop 0.60, we began to annotate cops as Safe or not safe. The definition of safety is that the cop doesn’t generate false positives. On top of that there’s SafeAutoCorrect that might be set to false in cases where only the auto-correct performed by a cop isunsafe, but
STYLE :: RUBOCOP DOCS Access modifiers should be declared to apply to a group of methods or inline before each method, depending on configuration. EnforcedStyle config covers only method definitions. RUBOCOP AST :: RUBOCOP DOCS RuboCop::AST::Node - this is an extension of the parser gem’s Node class, which adds a simpler and more powerful object-oriented API to make it easier to work with nodes.. RuboCop::AST::NodePattern - a regular expression-style method to traverse and match nodes in an Abstract Syntax Tree. See "Node Pattern" to get yourself familiar with NodePattern's capabilities. RAILS :: RUBOCOP DOCS However, without knowing whether they’ve set overridden the default value of config.active_record.belongs_to_required_by_default, we can’t say whether it’s safe to remove required: true or whether we should replace it with optional: false (or, similarly, remove a superfluous optional: false).Therefore, in the cases we’re using required: true, we’ll simply invert it to optional: false SECURITY :: RUBOCOP DOCS Autocorrect is disabled by default because it’s potentially dangerous. If using a stream, like JSON.load(open('file')), it will need to call #read manually, like JSON.parse(open('file').read).If reading single values (rather than proper JSON objects), like JSON.load('false'), it will need to pass the quirks_mode: true option, like JSON.parse('false', quirks_mode: true). RUBOCOP RAILS :: RUBOCOP DOCS A RuboCop extension focused on enforcing Rails best practices andcoding conventions.
RUBOCOP PERFORMANCE :: RUBOCOP DOCS Performance optimization analysis for your projects, as an extension to RuboCop.. Installation. Copyright (C) 2012-2021 Bozhidar Batsov and RuboCop contributors COPS :: RUBOCOP DOCS Metrics cops deal with properties of the source code that can be measured, such as class length, method length, etc. Generally speaking, they have a configuration parameter called Max and when running rubocop --auto-gen-config, this parameter will be set to the highest value found for the inspected code. FORMATTERS :: RUBOCOP DOCS You can change the output format of RuboCop by specifying formatters with the -f/--format option. RuboCop ships with several built-in formatters, and also you can create your custom formatter. RSPEC :: RUBOCOP DOCS Checks that right braces for adjacent single line lets are aligned. NAMING :: RUBOCOP DOCS The MinNameLength config option takes an integer. It represents the minimum amount of characters the name must be. Its default is 1. The AllowNamesEndingInNumbers config option takes a boolean. When set to false, this cop will register offenses for names ending with numbers. PERFORMANCE :: RUBOCOP DOCS Ruby has to allocate memory for the splat expansion every time that the case when statement is run. Since Ruby does not support fall through inside of case when, like some other languages do, the order of the when branches should not matter. By placing any splat expansions at the end of the list of when branches we will reduce the number of times that memory has to be allocated for the expansion. RUBOCOP | THE RUBY LINTER/FORMATTER THAT SERVES AND PROTECTS RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide. RuboCop is extremely flexible and most aspects of its behavior can be tweaked via various configuration options. In practice RuboCop supports pretty much every (reasonably popular) coding style that you can think of. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter: Auto-correction of many of the code offenses it detects. BASIC USAGE :: RUBOCOP DOCS RuboCop as a replacement for ruby -w. RuboCop as a formatter. Command-line flags. Exit codes. RuboCop has three primary uses: Code style checker (a.k.a. linter) A replacement for ruby -w (a subset of its linting capabilities) Code formatter. In the next sections we’ll briefly cover all of them. INSTALLATION :: RUBOCOP DOCS RuboCop is stable between major versions, both in terms of API and cop configuration. We aim the ease the maintenance of RuboCop extensions and the upgrades between RuboCop releases. CONFIGURATION :: RUBOCOP DOCS Configuration. The behavior of RuboCop can be controlled via the .rubocop.yml configuration file. It makes it possible to enable/disable certain cops (checks) and to alter their behavior if they accept any parameters. The file can be placed in your home directory, XDG config directory, or in RUBOCOP AST :: RUBOCOP DOCS RuboCop::AST::Node - this is an extension of the parser gem’s Node class, which adds a simpler and more powerful object-oriented API to make it easier to work with nodes.. RuboCop::AST::NodePattern - a regular expression-style method to traverse and match nodes in an Abstract Syntax Tree. See "Node Pattern" to get yourself familiar with NodePattern's capabilities. SECURITY :: RUBOCOP DOCS 0.44. This cop checks for the use of JSON class methods which have potential security issues. Autocorrect is disabled by default because it’s potentially dangerous. If using a stream, like JSON.load (open ('file')), it will need to call #read manually, like JSON.parse (open ('file').read) . If reading single values (rather than proper JSON AUTO-CORRECT :: RUBOCOP DOCS In RuboCop 0.60, we began to annotate cops as Safe or not safe. The definition of safety is that the cop doesn’t generate false positives. On top of that there’s SafeAutoCorrect that might be set to false in cases where only the auto-correct performed by a cop isunsafe, but
STYLE :: RUBOCOP DOCS Access modifiers should be declared to apply to a group of methods or inline before each method, depending on configuration. EnforcedStyle config covers only method definitions. NAMING :: RUBOCOP DOCS AllowedNames config takes an array of permitted names. Its default value is . These names can be full class/module names or part of the name. eg. Adding my_class to the AllowedNames config will allow names like my_class, my_class::User, App::my_class, App::my_class::User, etc. RUBOCOP | THE RUBY LINTER/FORMATTER THAT SERVES AND PROTECTS RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide. RuboCop is extremely flexible and most aspects of its behavior can be tweaked via various configuration options. In practice RuboCop supports pretty much every (reasonably popular) coding style that you can think of. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter: Auto-correction of many of the code offenses it detects. BASIC USAGE :: RUBOCOP DOCS RuboCop as a replacement for ruby -w. RuboCop as a formatter. Command-line flags. Exit codes. RuboCop has three primary uses: Code style checker (a.k.a. linter) A replacement for ruby -w (a subset of its linting capabilities) Code formatter. In the next sections we’ll briefly cover all of them. INSTALLATION :: RUBOCOP DOCS RuboCop is stable between major versions, both in terms of API and cop configuration. We aim the ease the maintenance of RuboCop extensions and the upgrades between RuboCop releases. CONFIGURATION :: RUBOCOP DOCS Configuration. The behavior of RuboCop can be controlled via the .rubocop.yml configuration file. It makes it possible to enable/disable certain cops (checks) and to alter their behavior if they accept any parameters. The file can be placed in your home directory, XDG config directory, or in RUBOCOP AST :: RUBOCOP DOCS RuboCop::AST::Node - this is an extension of the parser gem’s Node class, which adds a simpler and more powerful object-oriented API to make it easier to work with nodes.. RuboCop::AST::NodePattern - a regular expression-style method to traverse and match nodes in an Abstract Syntax Tree. See "Node Pattern" to get yourself familiar with NodePattern's capabilities. SECURITY :: RUBOCOP DOCS 0.44. This cop checks for the use of JSON class methods which have potential security issues. Autocorrect is disabled by default because it’s potentially dangerous. If using a stream, like JSON.load (open ('file')), it will need to call #read manually, like JSON.parse (open ('file').read) . If reading single values (rather than proper JSON AUTO-CORRECT :: RUBOCOP DOCS In RuboCop 0.60, we began to annotate cops as Safe or not safe. The definition of safety is that the cop doesn’t generate false positives. On top of that there’s SafeAutoCorrect that might be set to false in cases where only the auto-correct performed by a cop isunsafe, but
STYLE :: RUBOCOP DOCS Access modifiers should be declared to apply to a group of methods or inline before each method, depending on configuration. EnforcedStyle config covers only method definitions. NAMING :: RUBOCOP DOCS AllowedNames config takes an array of permitted names. Its default value is . These names can be full class/module names or part of the name. eg. Adding my_class to the AllowedNames config will allow names like my_class, my_class::User, App::my_class, App::my_class::User, etc. RUBOCOP :: RUBOCOP DOCS RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. RuboCop packs a lot of features on top of what you’d normally expect from a linter: Auto-correction of many of the code offenses it detects. CONFIGURATION :: RUBOCOP DOCS The optional inherit_from directive is used to include configuration from one or more files. This makes it possible to have the common project settings in the .rubocop.yml file at the project root, and then only the deviations from those rules in the subdirectories. The files can be given with absolute paths or paths relative to the file where they are referenced. RUBOCOP PERFORMANCE :: RUBOCOP DOCS RuboCop Performance. Performance optimization analysis for your projects, as an extension to RuboCop. Installation. METRICS :: RUBOCOP DOCS This cop tries to produce a complexity score that’s a measure of the complexity the reader experiences when looking at a method. For that reason it considers when nodes as something that doesn’t add as much complexity as an if or a &&.Except if it’s one of those special case/when constructs where there’s no expression after case.Then the cop treats it as an if/elsif/elsif RUBOCOP RAILS :: RUBOCOP DOCS RuboCop Rails. A RuboCop extension focused on enforcing Rails best practices and coding conventions. It’s based on the community-driven Rails style guide. Installation. RAILS :: RUBOCOP DOCS However, without knowing whether they’ve set overridden the default value of config.active_record.belongs_to_required_by_default, we can’t say whether it’s safe to remove required: true or whether we should replace it with optional: false (or, similarly, remove a superfluous optional: false).Therefore, in the cases we’re using required: true, we’ll simply invert it to optional: false FORMATTERS :: RUBOCOP DOCS You can change the output format of RuboCop by specifying formatters with the -f/--format option. RuboCop ships with several built-in formatters, and also you can create your custom formatter. RSPEC :: RUBOCOP DOCS RSpec allows for auto-generated example descriptions when there is no description provided or the description is an empty one. This cop removes empty descriptions. It also defines whether auto-generated description is allowed, based on the configured style. This cop can be configured using the EnforcedStyle option. COPS :: RUBOCOP DOCS Cops. In RuboCop lingo the various checks performed on the code are called cops. Each cop is responsible for detecting one particular offense. There are several cop departments, grouping the cops by class of offense. A short description of the different departments is provided below. Many of the Style and Layout cops have configurationoptions
PERFORMANCE :: RUBOCOP DOCS 0.59. Reordering when conditions with a splat to the end of the when branches can improve performance. Ruby has to allocate memory for the splat expansion every time that the case when statement is run. Since Ruby does not support fall through inside of case when, like some other languages do, the order of the when branches should not matter. The Ruby Linter/Formatter that Serves and Protects __ View on GitHub __ Read Docs__ Style Guide
-------------------------__ OVERVIEW
RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide . RuboCop is extremely flexible and most aspects of its behavior can be tweaked via various configuration options. In practice RuboCop supports pretty much every (reasonably popular) coding style that youcan think of.
Apart from reporting problems in your code, RuboCop can also automatically fix some of the problems for you.__ INSTALLATION
RuboCop's installation is pretty standard: $ gem install rubocop If you'd rather install RuboCop using bundler, add a line for it in your Gemfile (but set the require option to false, as it is astandalone tool):
gem 'rubocop', require: false__ USAGE
Running rubocop with no arguments will check all Ruby source files in the current directory:$Â rubocop
Alternatively you can specify a list of files and directories tocheck:
$ rubocop app spec lib/something.rb You can emulate the behavior of ruby -wc as well:$ rubocop -l
You can auto-correct offenses with rubocop -a:$ rubocop -a
You can limit auto-correct to layout/formatting-related offenses withrubocop -x:
$ rubocop -x
RuboCop can do way more. Use -h to view all available command-lineoptions.
__ COMPATIBILITY
RuboCop supports MRI 2.4+ and JRuby 9.2+. ------------------------- © 2012-2020 Bozhidar Batsov and RuboCopcontributors
Details
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