thoughtbot/paperclip

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lib/paperclip/io_adapters/uri_adapter.rb

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Surrounding space missing for operator *.
Open

      while data = src.read(16*1024)

Checks that operators have space around them, except for ** which should not have surrounding space.

Example:

# bad
total = 3*4
"apple"+"juice"
my_number = 38/4
a ** b

# good
total = 3 * 4
"apple" + "juice"
my_number = 38 / 4
a**b

Align match with @content.meta["content-disposition"]. on line 32.
Open

          match(/filename="([^"]*)"/)

This cop checks the indentation of the method name part in method calls that span more than one line.

Example: EnforcedStyle: aligned

# bad
while myvariable
.b
  # do something
end

# good
while myvariable
      .b
  # do something
end

# good
Thing.a
     .b
     .c

Example: EnforcedStyle: indented

# good
while myvariable
  .b

  # do something
end

Example: EnforcedStyle: indentedrelativeto_receiver

# good
while myvariable
        .a
        .b

  # do something
end

# good
myvariable = Thing
               .a
               .b
               .c

Prefer Object#is_a? over Object#kind_of?.
Open

  target.kind_of?(URI)

This cop enforces consistent use of Object#is_a? or Object#kind_of?.

Example: EnforcedStyle: is_a? (default)

# bad
var.kind_of?(Date)
var.kind_of?(Integer)

# good
var.is_a?(Date)
var.is_a?(Integer)

Example: EnforcedStyle: kind_of?

# bad
var.is_a?(Time)
var.is_a?(String)

# good
var.kind_of?(Time)
var.kind_of?(String)

Prefer double-quoted strings unless you need single quotes to avoid extra backslashes for escaping.
Open

require 'open-uri'

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"

Use Hash#key? instead of Hash#has_key?.
Open

      if @content.meta.has_key?("content-disposition")

This cop (by default) checks for uses of methods Hash#haskey? and Hash#hasvalue? where it enforces Hash#key? and Hash#value? It is configurable to enforce the inverse, using verbose method names also.

Example: EnforcedStyle: short (default)

# bad Hash#haskey? Hash#hasvalue?

# good Hash#key? Hash#value?

Example: EnforcedStyle: verbose

# bad Hash#key? Hash#value?

# good Hash#haskey? Hash#hasvalue?

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