Packages
credo
0.1.4
1.7.19
1.7.18
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1.7.16
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1.7.14
1.7.13
1.7.12
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1.7.10
1.7.9
1.7.8
1.7.7
1.7.7-rc.0
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1.7.4
1.7.3
1.7.2
1.7.2-rc.4
1.7.2-rc.3
1.7.2-rc.2
1.7.2-rc.1
1.7.2-rc.0
1.7.1
1.7.0
1.7.0-rc.2
1.7.0-rc.1
1.6.7
1.6.6
1.6.5
1.6.4
1.6.3
1.6.2
1.6.1
1.6.0
1.6.0-rc.1
1.6.0-rc.0
1.5.6
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1.1.0
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1.1.0-rc1
1.0.5
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1.0.3
1.0.2
1.0.1
1.0.1-rc1
1.0.0
1.0.0-rc1
0.10.2
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0.8.10
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0.5.3
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0.5.1
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0.4.0-beta5
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0.0.1-dev
A static code analysis tool with a focus on code consistency and teaching.
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Files
lib/credo/config.ex
defmodule Credo.Config do
defstruct files: nil,
checks: nil,
min_priority: 0,
help: false,
version: false,
verbose: false,
all: false,
one_line: false, # rename to one-line
match_checks: nil,
ignore_checks: nil,
crash_on_error: true
@config_filename ".credo.exs"
@default_config_name "default"
@default_config_file File.read!(@config_filename)
@default_glob "**/*.{ex,exs}"
@default_files_included [@default_glob]
@default_files_excluded []
def checks(%__MODULE__{checks: checks, match_checks: match_checks, ignore_checks: ignore_checks}) do
match_regexes = match_checks |> List.wrap |> to_match_regexes
ignore_regexes = ignore_checks |> List.wrap |> to_match_regexes
checks
|> Enum.filter(&match_regex(&1, match_regexes, true))
|> Enum.reject(&match_regex(&1, ignore_regexes, false))
end
defp match_regex(_tuple, [], default_for_empty), do: default_for_empty
defp match_regex(tuple, regexes, _default_for_empty) do
check_name =
tuple
|> Tuple.to_list
|> List.first
|> to_string
regexes
|> Enum.any?(&Regex.run(&1, check_name))
end
def to_match_regexes(list) do
list
|> Enum.map(fn(match_check) ->
{:ok, match_pattern} = Regex.compile(match_check, "i")
match_pattern
end)
end
def read_or_default(dir, config_name \\ nil) do
dir
|> relevant_config_files
|> Enum.filter(&File.exists?/1)
|> Enum.map(&File.read!/1)
|> List.insert_at(0, @default_config_file)
|> Enum.map(&from_exs(dir, config_name || @default_config_name, &1))
|> merge
|> add_given_directory_to_files(dir)
end
defp relevant_config_files(dir) do
path = dir |> Path.expand |> Path.join("config")
count = path |> Path.split |> Enum.count
Enum.reduce(0..count-2, [], fn(i, acc) ->
new_path =
path
|> Path.join(String.duplicate("../", i))
|> Path.expand
|> Path.join(@config_filename)
[new_path | acc]
end)
end
def from_exs(dir, config_name, exs_string \\ "%{}") do
exs_string
|> Credo.ExsLoader.parse
|> from_data(dir, config_name)
end
def from_data(data, dir, config_name) do
data =
data[:configs]
|> List.wrap
|> Enum.find(&(&1[:name] == config_name))
%__MODULE__{
files: files_from_data(data, dir),
checks: checks_from_data(data)
}
end
defp files_from_data(data, dir) do
files = data[:files] || %{}
included_dir =
(files[:included] || dir)
|> List.wrap
|> Enum.map(&join_default_files_if_directory/1)
%{
included: included_dir,
excluded: files[:excluded] || @default_files_excluded,
}
end
defp checks_from_data(data) do
case data[:checks] do
checks when is_list(checks) -> checks
_ -> []
end
end
def merge(list) when is_list(list) do
base = list |> List.first
tail = list |> List.delete_at(0)
merge(tail, base)
end
def merge([], config), do: config
def merge([other|tail], base) do
new_base = merge(base, other)
merge(tail, new_base)
end
def merge(base, other) do
%__MODULE__{
files: merge_files(base, other),
checks: merge_checks(base, other),
}
end
def merge_checks(%__MODULE__{checks: checks_base}, %__MODULE__{checks: checks_other}) do
checks_other || checks_base
end
def merge_files(%__MODULE__{files: files_base}, %__MODULE__{files: files_other}) do
%{
included: files_other[:included] || files_base[:included],
excluded: files_other[:excluded] || files_base[:excluded],
}
end
defp join_default_files_if_directory(dir) do
if File.dir?(dir) do
Path.join(dir, @default_files_included)
else
dir
end
end
defp add_given_directory_to_files(%__MODULE__{files: files} = config, dir) do
files = %{
included: files[:included] |> Enum.map(&add_directory_to_file(&1, dir)),
excluded: files[:excluded] |> Enum.map(&add_directory_to_file(&1, dir))
}
%__MODULE__{config | files: files}
end
defp add_directory_to_file(file_or_glob, dir) do
if File.dir?(dir) do
Path.join(dir, file_or_glob)
else
dir
end
end
end