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ChandraChaan
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Read .overcommit.yml as UTF-8 in the hook template (sds#910)
Fixes sds#868. Every hook in `template-dir/hooks` starts by reading `.overcommit.yml` to look for a `gemfile:` setting: ```ruby File.read('.overcommit.yml') =~ /gemfile: (?:false|['"]?(.*)['"]?)/ ``` `File.read` without an encoding uses `Encoding.default_external`. Under a non-UTF-8 locale such as `LANG=C` that is US-ASCII, so if `.overcommit.yml` contains any non-ASCII character (even in a comment) the match raises `ArgumentError: invalid byte sequence in US-ASCII` before Overcommit loads, and every git hook fails. This passes `encoding: 'UTF-8'` in all 10 hook copies (the template directory spec requires them to be byte-identical). The regression spec in `spec/integration/template_dir_spec.rb` initializes a temporary repository using the hook templates and writes a `.overcommit.yml` containing a non-ASCII comment. It runs the installed `pre-commit` hook with `LC_ALL=C LANG=C` and `-E US-ASCII`, then checks for a successful exit and output from the configured `AuthorName` check. This verifies that the hook actually runs instead of passing on an unrelated startup failure or an early exit. The encoding is set explicitly because the CI runners use a UTF-8 locale by default. Initial validation of the original spec on the fork: - Spec only, without the fix: [Tests](https://github.com/ChandraChaan/overcommit/actions/runs/41726596528) fails on every Ruby from 2.6 to 4.0 with a single failure out of 1667 examples, `template_dir_spec.rb:31`, `expected "…/template-dir/hooks/pre-commit:30:in '<main>': invalid byte s…" not to include "invalid byte sequence"`. - Spec with the fix: [Tests](https://github.com/ChandraChaan/overcommit/actions/runs/41726604340) passes on all eight Ruby versions (`1667 examples, 0 failures`), and Lint passes. The original fix commit is the squashed form of the fix branch; a separate follow-up commit strengthens the regression test. I left `CHANGELOG.md` alone since it looks like it is written when a version is cut. Follow-up validation: [Tests](https://github.com/sds/overcommit/actions/runs/41934884255) passes on all eight Ruby versions (2.6–4.0), and [Lint](https://github.com/sds/overcommit/actions/runs/41934884375) passes. The strengthened spec also passes locally on Ruby 2.6 and fails both without the encoding fix and with hook execution disabled. The full local suite has four macOS timestamp precision failures, all reproduced on the original PR commit. --------- Co-authored-by: Shane da Silva <[email protected]>
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‎spec/integration/template_dir_spec.rb‎

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require 'spec_helper'
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require 'fileutils'
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require 'open3'
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describe 'template directory' do
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let(:template_dir) { File.join(Overcommit::HOME, 'template-dir') }
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end
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end
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it 'reads a non-ASCII .overcommit.yml when the default external encoding is ASCII' do
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repo(template_dir: template_dir) do
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config = <<~YAML
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# caf\u00e9
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gemfile: false
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PreCommit:
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ALL:
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enabled: false
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AuthorName:
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enabled: true
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quiet: false
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YAML
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File.write('.overcommit.yml', config, encoding: 'UTF-8')
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stdout, stderr, status = Open3.capture3(
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{ 'LC_ALL' => 'C', 'LANG' => 'C' },
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RbConfig.ruby, '-E', 'US-ASCII', '-I', File.join(Overcommit::HOME, 'lib'),
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File.join('.git', 'hooks', 'pre-commit'),
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stdin_data: ''
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)
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expect(status.exitstatus).to eq(0), stdout + stderr
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stdout.should include('AuthorName')
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end
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end
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it 'contains no symlinks' do
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Overcommit::Utils.supported_hook_types.each do |hook_type|
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Overcommit::Utils::FileUtils.symlink?(File.join(hooks_dir, hook_type)).should == false

‎template-dir/hooks/commit-msg‎

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end
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# Check if Overcommit should invoke a Bundler context for loading gems
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File.read('.overcommit.yml') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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File.read('.overcommit.yml', encoding: 'UTF-8') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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gemfile = Regexp.last_match(1)
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if gemfile

‎template-dir/hooks/overcommit-hook‎

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end
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# Check if Overcommit should invoke a Bundler context for loading gems
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File.read('.overcommit.yml') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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File.read('.overcommit.yml', encoding: 'UTF-8') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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gemfile = Regexp.last_match(1)
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if gemfile

‎template-dir/hooks/post-checkout‎

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end
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# Check if Overcommit should invoke a Bundler context for loading gems
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File.read('.overcommit.yml') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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File.read('.overcommit.yml', encoding: 'UTF-8') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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gemfile = Regexp.last_match(1)
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if gemfile

‎template-dir/hooks/post-commit‎

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end
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# Check if Overcommit should invoke a Bundler context for loading gems
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File.read('.overcommit.yml') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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File.read('.overcommit.yml', encoding: 'UTF-8') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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gemfile = Regexp.last_match(1)
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if gemfile

‎template-dir/hooks/post-merge‎

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end
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# Check if Overcommit should invoke a Bundler context for loading gems
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File.read('.overcommit.yml') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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File.read('.overcommit.yml', encoding: 'UTF-8') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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gemfile = Regexp.last_match(1)
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if gemfile

‎template-dir/hooks/post-rewrite‎

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end
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# Check if Overcommit should invoke a Bundler context for loading gems
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File.read('.overcommit.yml') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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File.read('.overcommit.yml', encoding: 'UTF-8') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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gemfile = Regexp.last_match(1)
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if gemfile

‎template-dir/hooks/pre-commit‎

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end
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# Check if Overcommit should invoke a Bundler context for loading gems
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File.read('.overcommit.yml') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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File.read('.overcommit.yml', encoding: 'UTF-8') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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gemfile = Regexp.last_match(1)
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if gemfile

‎template-dir/hooks/pre-push‎

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end
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# Check if Overcommit should invoke a Bundler context for loading gems
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File.read('.overcommit.yml') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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File.read('.overcommit.yml', encoding: 'UTF-8') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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gemfile = Regexp.last_match(1)
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if gemfile

‎template-dir/hooks/pre-rebase‎

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end
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# Check if Overcommit should invoke a Bundler context for loading gems
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File.read('.overcommit.yml') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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File.read('.overcommit.yml', encoding: 'UTF-8') =~ /gemfile: (?:false|['"]?(.*)['"]?)/
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gemfile = Regexp.last_match(1)
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if gemfile

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