Showing 2,704 of 2,705 total issues
Do not suppress exceptions. Open
rescue Errno::ENOENT
- Read upRead up
- Exclude checks
This cop checks for rescue blocks with no body.
Example:
# bad
def some_method
do_something
rescue
# do nothing
end
Example:
# bad
begin
do_something
rescue
# do nothing
end
Example:
# good
def some_method
do_something
rescue
handle_exception
end
Example:
# good
begin
do_something
rescue
handle_exception
end
Unused method argument - new_metadata
. Open
def updateBasketofKittens(new_conf, skip_validation: false, new_metadata: nil, save_now: false)
- Read upRead up
- Exclude checks
This cop checks for unused method arguments.
Example:
# bad
def some_method(used, unused, _unused_but_allowed)
puts used
end
Example:
# good
def some_method(used, _unused, _unused_but_allowed)
puts used
end
Useless assignment to variable - bucket
. Did you mean bucketobj
? Open
bucket = nil
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- Exclude checks
This cop checks for every useless assignment to local variable in every
scope.
The basic idea for this cop was from the warning of ruby -cw
:
assigned but unused variable - foo
Currently this cop has advanced logic that detects unreferenced reassignments and properly handles varied cases such as branch, loop, rescue, ensure, etc.
Example:
# bad
def some_method
some_var = 1
do_something
end
Example:
# good
def some_method
some_var = 1
do_something(some_var)
end
Unused block argument - key
. If it's necessary, use _
or _key
as an argument name to indicate that it won't be used. Open
$CONFIGURABLES.each_pair { |key, data|
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- Exclude checks
This cop checks for unused block arguments.
Example:
# bad
do_something do |used, unused|
puts used
end
do_something do |bar|
puts :foo
end
define_method(:foo) do |bar|
puts :baz
end
Example:
#good
do_something do |used, _unused|
puts used
end
do_something do
puts :foo
end
define_method(:foo) do |_bar|
puts :baz
end
Avoid more than 4 levels of block nesting. Open
next if subkey.match(/^#/) or !subdata.is_a?(Hash)
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- Exclude checks
This cop checks for excessive nesting of conditional and looping constructs.
You can configure if blocks are considered using the CountBlocks
option. When set to false
(the default) blocks are not counted
towards the nesting level. Set to true
to count blocks as well.
The maximum level of nesting allowed is configurable.
Avoid more than 4 levels of block nesting. Open
puts "\n\n" if addnewline
- Read upRead up
- Exclude checks
This cop checks for excessive nesting of conditional and looping constructs.
You can configure if blocks are considered using the CountBlocks
option. When set to false
(the default) blocks are not counted
towards the nesting level. Set to true
to count blocks as well.
The maximum level of nesting allowed is configurable.
Use =~
in places where the MatchData
returned by #match
will not be used. Open
repo.match(/\/([^\/]+?)(\.git)?$/)
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- Exclude checks
This cop identifies the use of Regexp#match
or String#match
, which
returns #<MatchData>
/nil
. The return value of =~
is an integral
index/nil
and is more performant.
Example:
# bad
do_something if str.match(/regex/)
while regex.match('str')
do_something
end
# good
method(str =~ /regex/)
return value unless regex =~ 'str'
Use =~
in places where the MatchData
returned by #match
will not be used. Open
elsif l.match(/^\s*#\s*groomers: (.*)/)
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- Exclude checks
This cop identifies the use of Regexp#match
or String#match
, which
returns #<MatchData>
/nil
. The return value of =~
is an integral
index/nil
and is more performant.
Example:
# bad
do_something if str.match(/regex/)
while regex.match('str')
do_something
end
# good
method(str =~ /regex/)
return value unless regex =~ 'str'
Avoid rescuing the Exception
class. Perhaps you meant to rescue StandardError
? Open
rescue Exception => e
MU.log e.inspect, MU::ERR, details: e.backtrace
exit 1
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- Exclude checks
This cop 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
Useless assignment to variable - e
. Open
rescue MU::MuError => e
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- Exclude checks
This cop checks for every useless assignment to local variable in every
scope.
The basic idea for this cop was from the warning of ruby -cw
:
assigned but unused variable - foo
Currently this cop has advanced logic that detects unreferenced reassignments and properly handles varied cases such as branch, loop, rescue, ensure, etc.
Example:
# bad
def some_method
some_var = 1
do_something
end
Example:
# good
def some_method
some_var = 1
do_something(some_var)
end
File.exists?
is deprecated in favor of File.exist?
. Open
if !File.exists?("/sbin/mkfs.xfs")
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- Exclude checks
This cop checks for uses of the deprecated class method usages.
Example:
# bad
File.exists?(some_path)
Example:
# good
File.exist?(some_path)
Useless assignment to variable - ebs_key
. Open
ebs_key = nil
- Read upRead up
- Exclude checks
This cop checks for every useless assignment to local variable in every
scope.
The basic idea for this cop was from the warning of ruby -cw
:
assigned but unused variable - foo
Currently this cop has advanced logic that detects unreferenced reassignments and properly handles varied cases such as branch, loop, rescue, ensure, etc.
Example:
# bad
def some_method
some_var = 1
do_something
end
Example:
# good
def some_method
some_var = 1
do_something(some_var)
end
Useless assignment to variable - data
. Open
data = MU::Groomer::Chef.getSecret(
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- Exclude checks
This cop checks for every useless assignment to local variable in every
scope.
The basic idea for this cop was from the warning of ruby -cw
:
assigned but unused variable - foo
Currently this cop has advanced logic that detects unreferenced reassignments and properly handles varied cases such as branch, loop, rescue, ensure, etc.
Example:
# bad
def some_method
some_var = 1
do_something
end
Example:
# good
def some_method
some_var = 1
do_something(some_var)
end
Use tr
instead of gsub
. Open
data['cli-opt'] = key.gsub(/_/, "-")
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- Exclude checks
This cop identifies places where gsub
can be replaced by
tr
or delete
.
Example:
# bad
'abc'.gsub('b', 'd')
'abc'.gsub('a', '')
'abc'.gsub(/a/, 'd')
'abc'.gsub!('a', 'd')
# good
'abc'.gsub(/.*/, 'a')
'abc'.gsub(/a+/, 'd')
'abc'.tr('b', 'd')
'a b c'.delete(' ')
Useless assignment to variable - print_output
. Open
print_output = $opts[:verbose] || do_nodes.size == 1
- Read upRead up
- Exclude checks
This cop checks for every useless assignment to local variable in every
scope.
The basic idea for this cop was from the warning of ruby -cw
:
assigned but unused variable - foo
Currently this cop has advanced logic that detects unreferenced reassignments and properly handles varied cases such as branch, loop, rescue, ensure, etc.
Example:
# bad
def some_method
some_var = 1
do_something
end
Example:
# good
def some_method
some_var = 1
do_something(some_var)
end
Use =~
in places where the MatchData
returned by #match
will not be used. Open
if e.message.match(/Member must have length less than or equal to (\d+)/)
- Read upRead up
- Exclude checks
This cop identifies the use of Regexp#match
or String#match
, which
returns #<MatchData>
/nil
. The return value of =~
is an integral
index/nil
and is more performant.
Example:
# bad
do_something if str.match(/regex/)
while regex.match('str')
do_something
end
# good
method(str =~ /regex/)
return value unless regex =~ 'str'
Useless assignment to variable - ebs_key
. Open
ebs_key = nil
- Read upRead up
- Exclude checks
This cop checks for every useless assignment to local variable in every
scope.
The basic idea for this cop was from the warning of ruby -cw
:
assigned but unused variable - foo
Currently this cop has advanced logic that detects unreferenced reassignments and properly handles varied cases such as branch, loop, rescue, ensure, etc.
Example:
# bad
def some_method
some_var = 1
do_something
end
Example:
# good
def some_method
some_var = 1
do_something(some_var)
end
Use meaningful heredoc delimiters. Open
EOS
- Read upRead up
- Exclude checks
This cop checks that your heredocs are using meaningful delimiters.
By default it disallows END
and EO*
, and can be configured through
blacklisting additional delimiters.
Example:
# good
<<-SQL
SELECT * FROM foo
SQL
# bad
<<-END
SELECT * FROM foo
END
# bad
<<-EOS
SELECT * FROM foo
EOS
Useless assignment to variable - seed
. Open
seed = nil
- Read upRead up
- Exclude checks
This cop checks for every useless assignment to local variable in every
scope.
The basic idea for this cop was from the warning of ruby -cw
:
assigned but unused variable - foo
Currently this cop has advanced logic that detects unreferenced reassignments and properly handles varied cases such as branch, loop, rescue, ensure, etc.
Example:
# bad
def some_method
some_var = 1
do_something
end
Example:
# good
def some_method
some_var = 1
do_something(some_var)
end
Do not suppress exceptions. Open
rescue MU::Cloud::MuCloudResourceNotImplemented
- Read upRead up
- Exclude checks
This cop checks for rescue blocks with no body.
Example:
# bad
def some_method
do_something
rescue
# do nothing
end
Example:
# bad
begin
do_something
rescue
# do nothing
end
Example:
# good
def some_method
do_something
rescue
handle_exception
end
Example:
# good
begin
do_something
rescue
handle_exception
end