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lib/credo/execution.ex

defmodule Credo.Execution do
@doc """
Every run of Credo is configured via a `Execution` struct, which is created and
manipulated via the `Credo.Execution` module.
"""
defstruct argv: [],
cli_options: nil,
# config
files: nil,
color: true,
checks: nil,
requires: [],
strict: false,
check_for_updates: true, # checks if there is a new version of Credo
# options, set by the command line
min_priority: 0,
help: false,
version: false,
verbose: false,
all: false,
format: nil,
only_checks: nil,
ignore_checks: nil,
crash_on_error: true,
mute_exit_status: false,
read_from_stdin: false,
# state, which is accessed and changed over the course of Credo's execution
halted: false,
source_files_pid: nil,
issues_pid: nil,
skipped_checks: nil,
assigns: %{},
results: %{},
config_comment_map: %{},
lint_attribute_map: %{} # maps filenames to @lint attributes
@doc """
Returns the checks that should be run for a given `exec` struct.
Takes all checks from the `checks:` field of the exec, matches those against
any patterns to include or exclude certain checks given via the command line.
"""
def checks(%__MODULE__{checks: checks, only_checks: only_checks, ignore_checks: ignore_checks}) do
match_regexes =
only_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
Enum.any?(regexes, &Regex.run(&1, check_name))
end
defp to_match_regexes(list) do
Enum.map(list, fn(match_check) ->
{:ok, match_pattern} = Regex.compile(match_check, "i")
match_pattern
end)
end
@doc """
Sets the exec values which `strict` implies (if applicable).
"""
def set_strict(%__MODULE__{strict: true} = exec) do
%__MODULE__{exec | all: true, min_priority: -99}
end
def set_strict(%__MODULE__{strict: false} = exec) do
%__MODULE__{exec | min_priority: 0}
end
def set_strict(exec), do: exec
@doc """
Returns the name of the command, which should be run by the given execution.
"""
def get_command_name(exec) do
exec.cli_options.command
end
def get_path(exec) do
exec.cli_options.path
end
# Assigns
def get_assign(exec, name, default \\ nil) do
Map.get(exec.assigns, name, default)
end
def put_assign(exec, name, value) do
%__MODULE__{exec | assigns: Map.put(exec.assigns, name, value)}
end
# Source Files
def get_source_files(exec) do
Credo.Execution.SourceFiles.get(exec)
end
def put_source_files(exec, source_files) do
Credo.Execution.SourceFiles.put(exec, source_files)
exec
end
# Issues
def get_issues(exec) do
exec
|> Credo.Execution.Issues.to_map
|> Map.values
|> List.flatten
end
def get_issues(exec, filename) do
exec
|> Credo.Execution.Issues.to_map
|> Map.get(filename, [])
end
# Results
def get_result(exec, name, default \\ nil) do
Map.get(exec.results, name, default)
end
def put_result(exec, name, value) do
%__MODULE__{exec | results: Map.put(exec.results, name, value)}
end
# Halt
def halt(exec) do
%__MODULE__{exec | halted: true}
end
end