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Fix frozen error caused by frozen string literal #431

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Merged
jdleesmiller merged 4 commits into from
Feb 9, 2020
Merged

Fix frozen error caused by frozen string literal #431

jdleesmiller merged 4 commits into from
Feb 9, 2020

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@taichi-ishitani
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@taichi-ishitani taichi-ishitani commented Feb 5, 2020

Hi,

I got FrozenError when I use rubyzip gem --enable-frozen-string-literal option.

     FrozenError:
       can't modify frozen String: ""
     # ./vendor/bundle/ruby/2.7.0/gems/rubyzip-2.2.0/lib/zip/crypto/decrypted_io.rb:18:in `replace'
     # ./vendor/bundle/ruby/2.7.0/gems/rubyzip-2.2.0/lib/zip/crypto/decrypted_io.rb:18:in `read'
     # ./vendor/bundle/ruby/2.7.0/gems/rubyzip-2.2.0/lib/zip/inflater.rb:32:in `produce_input'
     # ./vendor/bundle/ruby/2.7.0/gems/rubyzip-2.2.0/lib/zip/inflater.rb:15:in `read'
     # ./vendor/bundle/ruby/2.7.0/gems/rubyzip-2.2.0/lib/zip/input_stream.rb:84:in `sysread'
     # ./vendor/bundle/ruby/2.7.0/gems/rubyzip-2.2.0/lib/zip/entry.rb:619:in `block (2 levels) in create_file'
     # ./vendor/bundle/ruby/2.7.0/gems/rubyzip-2.2.0/lib/zip/entry.rb:534:in `get_input_stream'
     # ./vendor/bundle/ruby/2.7.0/gems/rubyzip-2.2.0/lib/zip/entry.rb:615:in `block in create_file'
     # ./vendor/bundle/ruby/2.7.0/gems/rubyzip-2.2.0/lib/zip/entry.rb:614:in `open'
     # ./vendor/bundle/ruby/2.7.0/gems/rubyzip-2.2.0/lib/zip/entry.rb:614:in `create_file'
     # ./vendor/bundle/ruby/2.7.0/gems/rubyzip-2.2.0/lib/zip/entry.rb:182:in `extract'

This PR is to fix the above error.

@taichi-ishitani taichi-ishitani changed the title Fixed frozen error caused by frozen string literal Fixe frozen error caused by frozen string literal Feb 5, 2020
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coveralls commented Feb 5, 2020 •
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Coverage Status

Coverage remained the same at 95.674% when pulling 976dbd3 on taichi-ishitani:fix_frozen_error into ecd641e on rubyzip:master.

taichi-ishitani added a commit to rggen/rggen-spreadsheet-loader that referenced this pull request Feb 5, 2020
@taichi-ishitani
added workaround for FrozenError (see: rubyzip/rubyzip#431)
0388842
taichi-ishitani added a commit to rggen/rggen-systemverilog that referenced this pull request Feb 5, 2020
@taichi-ishitani
added workaround for FrozenError (see: rubyzip/rubyzip#431)
df85cc2
taichi-ishitani added a commit to rggen/rggen that referenced this pull request Feb 5, 2020
@taichi-ishitani
added workaround for FrozenError (see: rubyzip/rubyzip#431)
981f2fa
@taichi-ishitani taichi-ishitani changed the title Fixe frozen error caused by frozen string literal Fix frozen error caused by frozen string literal Feb 5, 2020
jdleesmiller
jdleesmiller reviewed Feb 8, 2020
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@jdleesmiller jdleesmiller left a comment

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Good spot, thanks!

All but one of these changes look good to me (see comment).

lib/zip/file.rb Outdated
def mkdir(entryName, permissionInt = 0o755)
raise Errno::EEXIST, "File exists - #{entryName}" if find_entry(entryName)
entryName = entryName.dup.to_s
entryName = +entryName.to_s
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Suggested change
entryName = +entryName.to_s
entryName = entryName.dup.to_s

I am not sure about this one --- I think the dup here is not necessarily to get an unfrozen entryName but instead to avoid mutating the entryName argument. + does not duplicate the string if it's not frozen.

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@taichi-ishitani taichi-ishitani Feb 8, 2020

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@jaredbeck ,
Thank you for your comment !
OK, I will revert this change.

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@taichi-ishitani taichi-ishitani Feb 8, 2020

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Done!

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jdleesmiller commented Feb 8, 2020

(And I have not forgotten about our discussion in #390 (comment) --- we should really get that linter set up!)

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hainesr commented Feb 8, 2020

@jdleesmiller I have a branch in my local repo where I've done a ton of work getting rubocop up to date. I'll try and get that sorted and get a PR out this weekend.

jdleesmiller
jdleesmiller approved these changes Feb 9, 2020
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Thanks 👍

@jdleesmiller jdleesmiller merged commit 393cd97 into rubyzip:master Feb 9, 2020
jdleesmiller added a commit that referenced this pull request Feb 9, 2020
@jdleesmiller
Update changelog for #431
247fd43
taichi-ishitani added a commit to rggen/rggen-systemverilog that referenced this pull request Jun 1, 2020
@taichi-ishitani
removed workaround for rubyzip/rubyzip#431
8dfc615
taichi-ishitani added a commit to rggen/rggen-spreadsheet-loader that referenced this pull request Jun 1, 2020
@taichi-ishitani
removed workaround for rubyzip/rubyzip#431
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@taichi-ishitani @coveralls @jdleesmiller @hainesr