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credo
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A static code analysis tool with a focus on code consistency and teaching.
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lib/credo/cli/command/suggest.ex
defmodule Credo.CLI.Command.Suggest do
use Credo.CLI.Command
@shortdoc "Suggest code objects to look at next (default)"
alias Credo.Check.Runner
alias Credo.Config
alias Credo.CLI.Filter
alias Credo.CLI.Output.IssuesGroupedByCategory
alias Credo.CLI.Output.UI
alias Credo.CLI.Output
alias Credo.Sources
def run(_dir, %Config{help: true}), do: print_help
def run(_dir, config) do
{time_load, source_files} = load_and_validate_source_files(config)
out = output_mod(config)
out.print_before_info(source_files, config)
{time_run, {source_files, config}} = run_checks(source_files, config)
print_results_and_summary(source_files, config, time_load, time_run)
issues =
source_files
|> Enum.flat_map(&(&1.issues))
|> Filter.important(config)
|> Filter.valid_issues(config)
case issues do
[] -> :ok
issues -> {:error, issues}
end
end
def load_and_validate_source_files(config) do
{time_load, {valid_source_files, invalid_source_files}} =
:timer.tc fn ->
source_files = config |> Sources.find
valid_source_files = Enum.filter(source_files, &(&1.valid?))
invalid_source_files = Enum.filter(source_files, &(!&1.valid?))
{valid_source_files, invalid_source_files}
end
invalid_source_files
|> Output.complain_about_invalid_source_files
{time_load, valid_source_files}
end
def run_checks(source_files, config) do
:timer.tc fn ->
Runner.run(source_files, config)
end
end
defp output_mod(%Config{format: "oneline"}) do
IssuesGroupedByCategory # TODO: offer short list (?)
end
defp output_mod(%Config{format: _}) do
IssuesGroupedByCategory
end
defp print_results_and_summary(source_files, config, time_load, time_run) do
out = output_mod(config)
source_files
|> out.print_after_info(config, time_load, time_run)
end
defp print_help do
["Usage: ", :olive, "mix credo suggest [paths] [options]"]
|> UI.puts
"""
Suggests objects from every category that Credo thinks can be improved.
"""
|> UI.puts
["Example: ", :olive, :faint, "$ mix credo suggest lib/**/*.ex --all -c names"]
|> UI.puts
"""
Arrows (↑ ↗ → ↘ ↓) hint at the importance of an issue.
Suggest options:
-a, --all Show all issues
-A, --all-priorities Show all issues including low priority ones
-c, --checks Only include checks that match the given strings
-C, --config-name Use the given config instead of "default"
-i, --ignore-checks Ignore checks that match the given strings
--format Display the list in a specific format (oneline,flycheck)
General options:
-v, --version Show version
-h, --help Show this help
"""
|> UI.puts
end
end