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97 lines
2.6 KiB
Crystal
97 lines
2.6 KiB
Crystal
module Ameba::Rule::Lint
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# A rule that reports typos found in source files.
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#
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# NOTE: Needs [typos](https://github.com/crate-ci/typos) CLI tool.
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# NOTE: See the chapter on [false positives](https://github.com/crate-ci/typos#false-positives).
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#
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# YAML configuration example:
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#
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# ```
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# Lint/Typos:
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# Enabled: true
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# BinPath: ~
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# FailOnError: false
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# ```
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class Typos < Base
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properties do
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description "Reports typos found in source files"
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bin_path : String? = nil
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fail_on_error false
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end
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MSG = "Typo found: %s -> %s"
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BIN_PATH = Process.find_executable("typos")
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def bin_path : String?
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@bin_path || BIN_PATH
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end
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def test(source : Source)
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typos = typos_from(source)
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typos.try &.each do |typo|
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corrections = typo.corrections
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message = MSG % {
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typo.typo, corrections.join(" | "),
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}
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if corrections.size == 1
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issue_for typo.location, typo.end_location, message do |corrector|
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corrector.replace(typo.location, typo.end_location, corrections.first)
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end
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else
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issue_for typo.location, typo.end_location, message
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end
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end
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rescue ex
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raise ex if fail_on_error?
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end
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private record Typo,
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path : String,
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typo : String,
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corrections : Array(String),
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location : {Int32, Int32},
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end_location : {Int32, Int32} do
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def self.parse(str) : self?
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issue = JSON.parse(str)
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return unless issue["type"] == "typo"
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typo = issue["typo"].as_s
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corrections = issue["corrections"].as_a.map(&.as_s)
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return if typo.empty? || corrections.empty?
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path = issue["path"].as_s
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line_no = issue["line_num"].as_i
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col_no = issue["byte_offset"].as_i + 1
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end_col_no = col_no + typo.size - 1
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new(path, typo, corrections,
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{line_no, col_no}, {line_no, end_col_no})
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end
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end
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protected def typos_from(source : Source) : Array(Typo)?
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unless bin_path = self.bin_path
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if fail_on_error?
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raise RuntimeError.new "Could not find `typos` executable"
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end
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return
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end
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status = Process.run(bin_path, args: %w[--format json -],
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input: IO::Memory.new(source.code),
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output: output = IO::Memory.new,
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)
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return if status.success?
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([] of Typo).tap do |typos|
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# NOTE: `--format json` is actually JSON Lines (`jsonl`)
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output.to_s.each_line do |line|
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Typo.parse(line).try { |typo| typos << typo }
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end
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end
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end
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end
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end
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