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lib/credo/cli/command/diff/diff_summary.ex

defmodule Credo.CLI.Command.Diff.DiffSummary do
@moduledoc false
# This module is responsible for printing the summary at the end of the analysis.
@category_wording [
{:consistency, "consistency issue", "consistency issues"},
{:warning, "warning", "warnings"},
{:refactor, "refactoring opportunity", "refactoring opportunities"},
{:readability, "code readability issue", "code readability issues"},
{:design, "software design suggestion", "software design suggestions"}
]
@cry_for_help "Please report incorrect results: https://github.com/rrrene/credo/issues"
alias Credo.CLI.Output
alias Credo.CLI.Output.UI
alias Credo.Execution
def print(
_source_files,
%Execution{format: "flycheck"},
_time_load,
_time_run
) do
nil
end
def print(_source_files, %Execution{format: "oneline"}, _time_load, _time_run) do
nil
end
def print(source_files, exec, time_load, time_run) do
issues = Execution.get_issues(exec)
source_file_count = exec |> Execution.get_source_files() |> Enum.count()
checks_count = count_checks(exec)
git_ref = Execution.get_assign(exec, "credo.diff.previous_git_ref")
UI.puts()
UI.puts([:faint, @cry_for_help])
UI.puts()
UI.puts(format_time_spent(checks_count, source_file_count, time_load, time_run))
UI.puts()
new_issues = Enum.filter(issues, &(&1.diff_marker == :new))
fixed_issues = Enum.filter(issues, &(&1.diff_marker == :fixed))
old_issues = Enum.filter(issues, &(&1.diff_marker == :old))
UI.puts([
"Changes between ",
:faint,
:cyan,
git_ref,
:reset,
" and working dir:"
])
UI.puts()
UI.puts(summary_parts_new(source_files, new_issues))
UI.puts(summary_parts_fixed(source_files, fixed_issues))
UI.puts(summary_parts_old(source_files, old_issues))
UI.puts()
print_priority_hint(exec)
end
defp count_checks(exec) do
{result, _only_matching, _ignore_matching} = Execution.checks(exec)
Enum.count(result)
end
defp print_priority_hint(%Execution{min_priority: min_priority})
when min_priority >= 0 do
UI.puts([
:faint,
"Showing priority issues: ↑ ↗ → (use `mix credo explain` to explain issues, `mix credo diff --help` for options)."
])
end
defp print_priority_hint(_) do
UI.puts([
:faint,
"Use `mix credo explain` to explain issues, `mix credo diff --help` for options."
])
end
defp format_time_spent(check_count, source_file_count, time_load, time_run) do
time_run = time_run |> div(10_000)
time_load = time_load |> div(10_000)
formatted_total = format_in_seconds(time_run + time_load)
time_to_load = format_in_seconds(time_load)
time_to_run = format_in_seconds(time_run)
total_in_seconds =
case formatted_total do
"1.0" -> "1 second"
value -> "#{value} seconds"
end
checks =
if check_count == 1 do
"1 check"
else
"#{check_count} checks"
end
source_files =
if source_file_count == 1 do
"1 file"
else
"#{source_file_count} files"
end
[
:faint,
"Analysis took #{total_in_seconds} ",
"(#{time_to_load}s to load, #{time_to_run}s running #{checks} on #{source_files})"
]
end
defp format_in_seconds(t) do
if t < 10 do
"0.0#{t}"
else
t = div(t, 10)
"#{div(t, 10)}.#{rem(t, 10)}"
end
end
defp category_count(issues, category) do
issues
|> Enum.count(&(&1.category == category))
end
defp summary_parts_new(_source_files, issues) do
parts =
@category_wording
|> Enum.flat_map(&summary_part(&1, issues, "new "))
parts =
parts
|> List.update_at(Enum.count(parts) - 1, fn last_part ->
String.replace(last_part, ", ", "")
end)
parts =
if Enum.empty?(parts) do
"no issues"
else
parts
end
[
:green,
:bright,
"+ ",
:reset,
:green,
" added ",
:reset,
parts,
","
]
end
defp summary_parts_fixed(_source_files, issues) do
parts =
@category_wording
|> Enum.flat_map(&summary_part(&1, issues))
parts =
parts
|> List.update_at(Enum.count(parts) - 1, fn last_part ->
String.replace(last_part, ", ", "")
end)
parts =
if Enum.empty?(parts) do
"no issues"
else
parts
end
[
:faint,
"✔ ",
:reset,
" fixed ",
:faint,
parts,
", and"
]
end
defp summary_parts_old(_source_files, issues) do
parts =
@category_wording
|> Enum.flat_map(&summary_part(&1, issues))
|> Enum.reject(&is_atom(&1))
parts =
parts
|> List.update_at(Enum.count(parts) - 1, fn last_part ->
String.replace(last_part, ", ", "")
end)
parts =
if Enum.empty?(parts) do
"no issues"
else
parts
end
[
:faint,
"~ ",
" kept ",
parts,
"."
]
end
defp summary_part({category, singular, plural}, issues, qualifier \\ "") do
color = Output.check_color(category)
case category_count(issues, category) do
0 -> []
1 -> [color, "1 #{qualifier}#{singular}, "]
x -> [color, "#{x} #{qualifier}#{plural}, "]
end
end
end