tomlobato/sys_watchdog

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Pass &:read as an argument to popen instead of a block.
Open

        output = IO.popen(cmd, "r") {|pipe| pipe.read}
Severity: Minor
Found in lib/sys_watchdog/wd_test.rb by rubocop

Use symbols as procs when possible.

Example:

# bad
something.map { |s| s.upcase }

# good
something.map(&:upcase)

Missing magic comment # frozen_string_literal: true.
Open

class WdTest
Severity: Minor
Found in lib/sys_watchdog/wd_test.rb by rubocop

This cop is designed to help upgrade to Ruby 3.0. It will add the comment # frozen_string_literal: true to the top of files to enable frozen string literals. Frozen string literals may be default in Ruby 3.0. The comment will be added below a shebang and encoding comment. The frozen string literal comment is only valid in Ruby 2.3+.

Example: EnforcedStyle: when_needed (default)

# The `when_needed` style will add the frozen string literal comment
# to files only when the `TargetRubyVersion` is set to 2.3+.
# bad
module Foo
  # ...
end

# good
# frozen_string_literal: true

module Foo
  # ...
end

Example: EnforcedStyle: always

# The `always` style will always add the frozen string literal comment
# to a file, regardless of the Ruby version or if `freeze` or `<

Example: EnforcedStyle: never

# The `never` will enforce that the frozen string literal comment does
# not exist in a file.
# bad
# frozen_string_literal: true

module Baz
  # ...
end

# good
module Baz
  # ...
end

Favor modifier if usage when having a single-line body. Another good alternative is the usage of control flow &&/||.
Open

        if @test_url
Severity: Minor
Found in lib/sys_watchdog/wd_test.rb by rubocop

Checks for if and unless statements that would fit on one line if written as a modifier if/unless. The maximum line length is configured in the Metrics/LineLength cop.

Example:

# bad
if condition
  do_stuff(bar)
end

unless qux.empty?
  Foo.do_something
end

# good
do_stuff(bar) if condition
Foo.do_something unless qux.empty?

Space inside string interpolation detected.
Open

    "#{ message } #{ backtrace&.join "\n" }"
Severity: Minor
Found in lib/sys_watchdog/core_extensions.rb by rubocop

This cop checks for whitespace within string interpolations.

Example: EnforcedStyle: no_space (default)

# bad
   var = "This is the #{ space } example"

# good
   var = "This is the #{no_space} example"

Example: EnforcedStyle: space

# bad
   var = "This is the #{no_space} example"

# good
   var = "This is the #{ space } example"

Favor modifier if usage when having a single-line body. Another good alternative is the usage of control flow &&/||.
Open

        if @expected_regex
Severity: Minor
Found in lib/sys_watchdog/wd_test.rb by rubocop

Checks for if and unless statements that would fit on one line if written as a modifier if/unless. The maximum line length is configured in the Metrics/LineLength cop.

Example:

# bad
if condition
  do_stuff(bar)
end

unless qux.empty?
  Foo.do_something
end

# good
do_stuff(bar) if condition
Foo.do_something unless qux.empty?

Prefer $CHILD_STATUS from the stdlib 'English' module (don't forget to require it) over $?.
Open

        exitstatus = $?.exitstatus
Severity: Minor
Found in lib/sys_watchdog/wd_test.rb by rubocop

Use && instead of and.
Open

  (stat.uid == Process.uid and stat.gid == Process.gid)
Severity: Minor
Found in lib/sys_watchdog/core_extensions.rb by rubocop

This cop checks for uses of and and or, and suggests using && and || instead. It can be configured to check only in conditions, or in all contexts.

Example: EnforcedStyle: always (default)

# bad
foo.save and return

# bad
if foo and bar
end

# good
foo.save && return

# good
if foo && bar
end

Example: EnforcedStyle: conditionals

# bad
if foo and bar
end

# good
foo.save && return

# good
foo.save and return

# good
if foo && bar
end

Prefer single-quoted strings when you don't need string interpolation or special symbols.
Open

  s.require_paths = ["lib"]
Severity: Minor
Found in sys_watchdog.gemspec by rubocop

Checks if uses of quotes match the configured preference.

Example: EnforcedStyle: single_quotes (default)

# bad
"No special symbols"
"No string interpolation"
"Just text"

# good
'No special symbols'
'No string interpolation'
'Just text'
"Wait! What's #{this}!"

Example: EnforcedStyle: double_quotes

# bad
'Just some text'
'No special chars or interpolation'

# good
"Just some text"
"No special chars or interpolation"
"Every string in #{project} uses double_quotes"

Prefer single-quoted strings when you don't need string interpolation or special symbols.
Open

require "sys_watchdog/version"
Severity: Minor
Found in lib/sys_watchdog.rb by rubocop

Checks if uses of quotes match the configured preference.

Example: EnforcedStyle: single_quotes (default)

# bad
"No special symbols"
"No string interpolation"
"Just text"

# good
'No special symbols'
'No string interpolation'
'Just text'
"Wait! What's #{this}!"

Example: EnforcedStyle: double_quotes

# bad
'Just some text'
'No special chars or interpolation'

# good
"Just some text"
"No special chars or interpolation"
"Every string in #{project} uses double_quotes"

Line is too long. [95/80]
Open

      STDERR.puts "Install requires root privileges. Run with sudo or login as root. Aborting."
Severity: Minor
Found in lib/sys_watchdog/setup.rb by rubocop

Use Process.uid.zero? instead of Process.uid == 0.
Open

    unless Process.uid == 0
Severity: Minor
Found in lib/sys_watchdog/setup.rb by rubocop

This cop checks for usage of comparison operators (==, >, <) to test numbers as zero, positive, or negative. These can be replaced by their respective predicate methods. The cop can also be configured to do the reverse.

The cop disregards #nonzero? as it its value is truthy or falsey, but not true and false, and thus not always interchangeable with != 0.

The cop ignores comparisons to global variables, since they are often populated with objects which can be compared with integers, but are not themselves Interger polymorphic.

Example: EnforcedStyle: predicate (default)

# bad

foo == 0
0 > foo
bar.baz > 0

# good

foo.zero?
foo.negative?
bar.baz.positive?

Example: EnforcedStyle: comparison

# bad

foo.zero?
foo.negative?
bar.baz.positive?

# good

foo == 0
0 > foo
bar.baz > 0

Indent the first line of the right-hand-side of a multi-line assignment.
Open

            if @expected_regex
                output =~ @expected_regex
            elsif @expected_string
                output.index @expected_string
            elsif @expected_max
Severity: Minor
Found in lib/sys_watchdog/wd_test.rb by rubocop

This cop checks the indentation of the first line of the right-hand-side of a multi-line assignment.

Example:

# bad
value =
if foo
  'bar'
end

# good
value =
  if foo
    'bar'
  end

The indentation of the remaining lines can be corrected with other cops such as IndentationConsistency and EndAlignment.

Use 2 (not 4) spaces for indentation.
Open

            @logger.error "#{cmd} -> #{output}"
Severity: Minor
Found in lib/sys_watchdog/wd_test.rb by rubocop

This cops checks for indentation that doesn't use the specified number of spaces.

See also the IndentationConsistency cop which is the companion to this one.

Example:

# bad
class A
 def test
  puts 'hello'
 end
end

# good
class A
  def test
    puts 'hello'
  end
end

Example: IgnoredPatterns: ['^\s*module']

# bad
module A
class B
  def test
  puts 'hello'
  end
end
end

# good
module A
class B
  def test
    puts 'hello'
  end
end
end

Use 2 (not 4) spaces for indentation.
Open

                output.index @expected_string
Severity: Minor
Found in lib/sys_watchdog/wd_test.rb by rubocop

This cops checks for indentation that doesn't use the specified number of spaces.

See also the IndentationConsistency cop which is the companion to this one.

Example:

# bad
class A
 def test
  puts 'hello'
 end
end

# good
class A
  def test
    puts 'hello'
  end
end

Example: IgnoredPatterns: ['^\s*module']

# bad
module A
class B
  def test
  puts 'hello'
  end
end
end

# good
module A
class B
  def test
    puts 'hello'
  end
end
end

Space inside string interpolation detected.
Open

        @logger.info "run: #{ cmd }"
Severity: Minor
Found in lib/sys_watchdog/wd_test.rb by rubocop

This cop checks for whitespace within string interpolations.

Example: EnforcedStyle: no_space (default)

# bad
   var = "This is the #{ space } example"

# good
   var = "This is the #{no_space} example"

Example: EnforcedStyle: space

# bad
   var = "This is the #{no_space} example"

# good
   var = "This is the #{ space } example"

Use a guard clause instead of wrapping the code inside a conditional expression.
Open

        unless exitstatus == 0
Severity: Minor
Found in lib/sys_watchdog/wd_test.rb by rubocop

Use a guard clause instead of wrapping the code inside a conditional expression

Example:

# bad
def test
  if something
    work
  end
end

# good
def test
  return unless something
  work
end

# also good
def test
  work if something
end

# bad
if something
  raise 'exception'
else
  ok
end

# good
raise 'exception' if something
ok

Use && instead of and.
Open

  (stat.uid == 0           and stat.gid == 0) ||
Severity: Minor
Found in lib/sys_watchdog/core_extensions.rb by rubocop

This cop checks for uses of and and or, and suggests using && and || instead. It can be configured to check only in conditions, or in all contexts.

Example: EnforcedStyle: always (default)

# bad
foo.save and return

# bad
if foo and bar
end

# good
foo.save && return

# good
if foo && bar
end

Example: EnforcedStyle: conditionals

# bad
if foo and bar
end

# good
foo.save && return

# good
foo.save and return

# good
if foo && bar
end

Missing magic comment # frozen_string_literal: true.
Open

class Exception
Severity: Minor
Found in lib/sys_watchdog/core_extensions.rb by rubocop

This cop is designed to help upgrade to Ruby 3.0. It will add the comment # frozen_string_literal: true to the top of files to enable frozen string literals. Frozen string literals may be default in Ruby 3.0. The comment will be added below a shebang and encoding comment. The frozen string literal comment is only valid in Ruby 2.3+.

Example: EnforcedStyle: when_needed (default)

# The `when_needed` style will add the frozen string literal comment
# to files only when the `TargetRubyVersion` is set to 2.3+.
# bad
module Foo
  # ...
end

# good
# frozen_string_literal: true

module Foo
  # ...
end

Example: EnforcedStyle: always

# The `always` style will always add the frozen string literal comment
# to a file, regardless of the Ruby version or if `freeze` or `<

Example: EnforcedStyle: never

# The `never` will enforce that the frozen string literal comment does
# not exist in a file.
# bad
# frozen_string_literal: true

module Baz
  # ...
end

# good
module Baz
  # ...
end

Missing magic comment # frozen_string_literal: true.
Open

require 'rake/testtask'
Severity: Minor
Found in Rakefile by rubocop

This cop is designed to help upgrade to Ruby 3.0. It will add the comment # frozen_string_literal: true to the top of files to enable frozen string literals. Frozen string literals may be default in Ruby 3.0. The comment will be added below a shebang and encoding comment. The frozen string literal comment is only valid in Ruby 2.3+.

Example: EnforcedStyle: when_needed (default)

# The `when_needed` style will add the frozen string literal comment
# to files only when the `TargetRubyVersion` is set to 2.3+.
# bad
module Foo
  # ...
end

# good
# frozen_string_literal: true

module Foo
  # ...
end

Example: EnforcedStyle: always

# The `always` style will always add the frozen string literal comment
# to a file, regardless of the Ruby version or if `freeze` or `<

Example: EnforcedStyle: never

# The `never` will enforce that the frozen string literal comment does
# not exist in a file.
# bad
# frozen_string_literal: true

module Baz
  # ...
end

# good
module Baz
  # ...
end

Prefer single-quoted strings when you don't need string interpolation or special symbols.
Open

  s.email         = "lobato@bettercall.io"
Severity: Minor
Found in sys_watchdog.gemspec by rubocop

Checks if uses of quotes match the configured preference.

Example: EnforcedStyle: single_quotes (default)

# bad
"No special symbols"
"No string interpolation"
"Just text"

# good
'No special symbols'
'No string interpolation'
'Just text'
"Wait! What's #{this}!"

Example: EnforcedStyle: double_quotes

# bad
'Just some text'
'No special chars or interpolation'

# good
"Just some text"
"No special chars or interpolation"
"Every string in #{project} uses double_quotes"
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