Method chase_referrals
has a Cognitive Complexity of 25 (exceeds 11 allowed). Consider refactoring. Open
def chase_referrals(objs, opts, seen)
return objs if objs.empty?
res = []
objs.each do |o|
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Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Cyclomatic complexity for fqusername is too high. [17/11] Open
def fqusername(username)
return username if dn?(username) || domain_username?(username)
user_type = @user_type.split("-").first
return username if user_type != "mail" && upn?(username)
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Checks that the cyclomatic complexity of methods is not higher than the configured maximum. The cyclomatic complexity is the number of linearly independent paths through a method. The algorithm counts decision points and adds one.
An if statement (or unless or ?:) increases the complexity by one. An else branch does not, since it doesn't add a decision point. The && operator (or keyword and) can be converted to a nested if statement, and ||/or is shorthand for a sequence of ifs, so they also add one. Loops can be said to have an exit condition, so they add one. Blocks that are calls to builtin iteration methods (e.g. `ary.map{...}) also add one, others are ignored.
def each_child_node(*types) # count begins: 1
unless block_given? # unless: +1
return to_enum(__method__, *types)
children.each do |child| # each{}: +1
next unless child.is_a?(Node) # unless: +1
yield child if types.empty? || # if: +1, ||: +1
types.include?(child.type)
end
self
end # total: 6
Cyclomatic complexity for initialize is too high. [15/11] Open
def initialize(options = {})
@auth = options[:auth] || ::Settings.authentication.to_hash
log_auth = Vmdb::Settings.mask_passwords!(@auth.deep_clone)
_log.info("Server Settings: #{log_auth.inspect}")
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Checks that the cyclomatic complexity of methods is not higher than the configured maximum. The cyclomatic complexity is the number of linearly independent paths through a method. The algorithm counts decision points and adds one.
An if statement (or unless or ?:) increases the complexity by one. An else branch does not, since it doesn't add a decision point. The && operator (or keyword and) can be converted to a nested if statement, and ||/or is shorthand for a sequence of ifs, so they also add one. Loops can be said to have an exit condition, so they add one. Blocks that are calls to builtin iteration methods (e.g. `ary.map{...}) also add one, others are ignored.
def each_child_node(*types) # count begins: 1
unless block_given? # unless: +1
return to_enum(__method__, *types)
children.each do |child| # each{}: +1
next unless child.is_a?(Node) # unless: +1
yield child if types.empty? || # if: +1, ||: +1
types.include?(child.type)
end
self
end # total: 6
Method get_memberships
has a Cognitive Complexity of 22 (exceeds 11 allowed). Consider refactoring. Open
def get_memberships(obj, max_depth = 0, attr = @group_attribute.to_sym, followed = [], current_depth = 0)
current_depth += 1
_log.debug("Enter get_memberships: #{obj.inspect}")
_log.debug("Enter get_memberships: #{obj.dn}, max_depth: #{max_depth}, current_depth: #{current_depth}, attr: #{attr}")
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Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Cyclomatic complexity for get_user_object is too high. [12/11] Open
def get_user_object(username, user_type = nil)
user_type ||= @user_type.split("-").first
if dn?(username)
user_type = "dn"
elsif user_type != "mail" && upn?(username)
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Checks that the cyclomatic complexity of methods is not higher than the configured maximum. The cyclomatic complexity is the number of linearly independent paths through a method. The algorithm counts decision points and adds one.
An if statement (or unless or ?:) increases the complexity by one. An else branch does not, since it doesn't add a decision point. The && operator (or keyword and) can be converted to a nested if statement, and ||/or is shorthand for a sequence of ifs, so they also add one. Loops can be said to have an exit condition, so they add one. Blocks that are calls to builtin iteration methods (e.g. `ary.map{...}) also add one, others are ignored.
def each_child_node(*types) # count begins: 1
unless block_given? # unless: +1
return to_enum(__method__, *types)
children.each do |child| # each{}: +1
next unless child.is_a?(Node) # unless: +1
yield child if types.empty? || # if: +1, ||: +1
types.include?(child.type)
end
self
end # total: 6
Cyclomatic complexity for get_user_info is too high. [12/11] Open
def get_user_info(username, user_type = nil)
user = get_user_object(username, user_type)
return nil if user.nil?
udata = {}
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Checks that the cyclomatic complexity of methods is not higher than the configured maximum. The cyclomatic complexity is the number of linearly independent paths through a method. The algorithm counts decision points and adds one.
An if statement (or unless or ?:) increases the complexity by one. An else branch does not, since it doesn't add a decision point. The && operator (or keyword and) can be converted to a nested if statement, and ||/or is shorthand for a sequence of ifs, so they also add one. Loops can be said to have an exit condition, so they add one. Blocks that are calls to builtin iteration methods (e.g. `ary.map{...}) also add one, others are ignored.
def each_child_node(*types) # count begins: 1
unless block_given? # unless: +1
return to_enum(__method__, *types)
children.each do |child| # each{}: +1
next unless child.is_a?(Node) # unless: +1
yield child if types.empty? || # if: +1, ||: +1
types.include?(child.type)
end
self
end # total: 6
Method resolve_host
has a Cognitive Complexity of 19 (exceeds 11 allowed). Consider refactoring. Open
def resolve_host(hosts, port)
hosts = Array.wrap(hosts)
selected_host = nil
valid_address = false
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Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Method fqusername
has a Cognitive Complexity of 18 (exceeds 11 allowed). Consider refactoring. Open
def fqusername(username)
return username if dn?(username) || domain_username?(username)
user_type = @user_type.split("-").first
return username if user_type != "mail" && upn?(username)
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Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Method _search
has a Cognitive Complexity of 17 (exceeds 11 allowed). Consider refactoring. Open
def _search(opts, seen = nil, &_blk)
raw_opts = opts.dup
opts[:scope] = scope(opts[:scope]) if opts[:scope]
if opts[:filter]
opts[:filter] = filter_construct(opts[:filter]) unless opts[:filter].kind_of?(Net::LDAP::Filter)
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Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Method get_user_info
has a Cognitive Complexity of 16 (exceeds 11 allowed). Consider refactoring. Open
def get_user_info(username, user_type = nil)
user = get_user_object(username, user_type)
return nil if user.nil?
udata = {}
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Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Method has too many optional parameters. [4/3] Open
def get_memberships(obj, max_depth = 0, attr = @group_attribute.to_sym, followed = [], current_depth = 0)
current_depth += 1
_log.debug("Enter get_memberships: #{obj.inspect}")
_log.debug("Enter get_memberships: #{obj.dn}, max_depth: #{max_depth}, current_depth: #{current_depth}, attr: #{attr}")
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- Exclude checks
Checks for methods with too many parameters.
The maximum number of parameters is configurable. Keyword arguments can optionally be excluded from the total count, as they add less complexity than positional or optional parameters.
Any number of arguments for initialize
method inside a block of
Struct.new
and Data.define
like this is always allowed:
Struct.new(:one, :two, :three, :four, :five, keyword_init: true) do
def initialize(one:, two:, three:, four:, five:)
end
end
This is because checking the number of arguments of the initialize
method
does not make sense.
NOTE: Explicit block argument &block
is not counted to prevent
erroneous change that is avoided by making block argument implicit.
Example: Max: 3
# good
def foo(a, b, c = 1)
end
Example: Max: 2
# bad
def foo(a, b, c = 1)
end
Example: CountKeywordArgs: true (default)
# counts keyword args towards the maximum
# bad (assuming Max is 3)
def foo(a, b, c, d: 1)
end
# good (assuming Max is 3)
def foo(a, b, c: 1)
end
Example: CountKeywordArgs: false
# don't count keyword args towards the maximum
# good (assuming Max is 3)
def foo(a, b, c, d: 1)
end
This cop also checks for the maximum number of optional parameters.
This can be configured using the MaxOptionalParameters
config option.
Example: MaxOptionalParameters: 3 (default)
# good
def foo(a = 1, b = 2, c = 3)
end
Example: MaxOptionalParameters: 2
# bad
def foo(a = 1, b = 2, c = 3)
end
Use search_opts[:base] = username; search_opts[:scope] = :base
instead of search_opts.merge!(:base => username, :scope => :base)
. Open
search_opts.merge!(:base => username, :scope => :base)
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This cop identifies places where Hash#merge!
can be replaced by
Hash#[]=
.
Example:
hash.merge!(a: 1)
hash.merge!({'key' => 'value'})
hash.merge!(a: 1, b: 2)
Avoid rescuing the Exception
class. Perhaps you meant to rescue StandardError
? Open
rescue Exception => err
_log.error("'#{err.message}'")
obj = nil
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Checks for rescue
blocks targeting the Exception class.
Example:
# bad
begin
do_something
rescue Exception
handle_exception
end
Example:
# good
begin
do_something
rescue ArgumentError
handle_exception
end
Avoid rescuing the Exception
class. Perhaps you meant to rescue StandardError
? Open
rescue Exception => err
raise err.message
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Checks for rescue
blocks targeting the Exception class.
Example:
# bad
begin
do_something
rescue Exception
handle_exception
end
Example:
# good
begin
do_something
rescue ArgumentError
handle_exception
end
Avoid rescuing the Exception
class. Perhaps you meant to rescue StandardError
? Open
rescue Exception => err
_log.error("Binding to LDAP: Host: [#{@ldap.host}], User: [#{username}], '#{err.message}'")
false
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Checks for rescue
blocks targeting the Exception class.
Example:
# bad
begin
do_something
rescue Exception
handle_exception
end
Example:
# good
begin
do_something
rescue ArgumentError
handle_exception
end
Avoid rescuing the Exception
class. Perhaps you meant to rescue StandardError
? Open
rescue Exception => err
_log.error("'#{err.message}'")
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Checks for rescue
blocks targeting the Exception class.
Example:
# bad
begin
do_something
rescue Exception
handle_exception
end
Example:
# good
begin
do_something
rescue ArgumentError
handle_exception
end
Avoid rescuing the Exception
class. Perhaps you meant to rescue StandardError
? Open
rescue Exception => err
result = false
errors[[:authentication, auth[:mode]].join("_")] = err.message
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Checks for rescue
blocks targeting the Exception class.
Example:
# bad
begin
do_something
rescue Exception
handle_exception
end
Example:
# good
begin
do_something
rescue ArgumentError
handle_exception
end
Do not use prefix _
for a variable that is used. Open
def _search(opts, seen = nil, &_blk)
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Checks for underscore-prefixed variables that are actually used.
Since block keyword arguments cannot be arbitrarily named at call
sites, the AllowKeywordBlockArguments
will allow use of underscore-
prefixed block keyword arguments.
Example: AllowKeywordBlockArguments: false (default)
# bad
[1, 2, 3].each do |_num|
do_something(_num)
end
query(:sales) do |_id:, revenue:, cost:|
{_id: _id, profit: revenue - cost}
end
# good
[1, 2, 3].each do |num|
do_something(num)
end
[1, 2, 3].each do |_num|
do_something # not using `_num`
end
Example: AllowKeywordBlockArguments: true
# good
query(:sales) do |_id:, revenue:, cost:|
{_id: _id, profit: revenue - cost}
end