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credo
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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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lib/credo/cli/command/list/output/default.ex
defmodule Credo.CLI.Command.List.Output.Default do
@moduledoc false
alias Credo.CLI.Filename
alias Credo.CLI.Output
alias Credo.CLI.Output.Summary
alias Credo.CLI.Output.UI
alias Credo.Code.Scope
alias Credo.Issue
alias Credo.SourceFile
@indent 8
@doc "Called before the analysis is run."
def print_before_info(source_files, exec) do
UI.puts("")
case Enum.count(source_files) do
0 -> UI.puts("No files found!")
1 -> UI.puts("Checking 1 source file ...")
count -> UI.puts("Checking #{count} source files ...")
end
Output.print_skipped_checks(exec)
end
@doc "Called after the analysis has run."
def print_after_info(source_files, exec, time_load, time_run) do
term_width = Output.term_columns()
source_files
|> Enum.sort_by(& &1.filename)
|> Enum.each(&print_issues(&1, exec, term_width))
source_files
|> Summary.print(exec, time_load, time_run)
end
defp print_issues(
%SourceFile{filename: filename} = source_file,
exec,
term_width
) do
issues = Credo.Execution.get_issues(exec, filename)
issues
|> print_issues(filename, source_file, exec, term_width)
end
defp print_issues(issues, _filename, source_file, _exec, term_width) do
if issues |> Enum.any?() do
first_issue = issues |> List.first()
scope_name = Scope.mod_name(first_issue.scope)
color = Output.check_color(first_issue)
UI.puts()
[
:bright,
"#{color}_background" |> String.to_atom(),
color,
" ",
Output.foreground_color(color),
:normal,
" #{scope_name}" |> String.pad_trailing(term_width - 1)
]
|> UI.puts()
color
|> UI.edge()
|> UI.puts()
issues
|> Enum.sort_by(& &1.line_no)
|> Enum.each(&print_issue(&1, source_file, term_width))
end
end
defp print_issue(
%Issue{
check: check,
message: message,
filename: filename,
priority: priority
} = issue,
source_file,
term_width
) do
outer_color = Output.check_color(issue)
inner_color = Output.issue_color(issue)
message_color = inner_color
filename_color = :default_color
tag_style =
if outer_color == inner_color do
:faint
else
:bright
end
[
UI.edge(outer_color),
inner_color,
tag_style,
Output.check_tag(check.category),
" ",
priority |> Output.priority_arrow(),
:normal,
message_color,
" ",
message
]
|> UI.puts()
[
UI.edge(outer_color, @indent),
filename_color,
:faint,
filename |> to_string,
:default_color,
:faint,
Filename.pos_suffix(issue.line_no, issue.column),
:faint,
" (#{issue.scope})"
]
|> UI.puts()
if issue.line_no do
print_issue_line_no(source_file, term_width, issue, outer_color, inner_color)
end
UI.puts_edge([outer_color, :faint], @indent)
end
defp print_issue_column(raw_line, line, issue, outer_color, inner_color) do
offset = String.length(raw_line) - String.length(line)
# column is one-based
x = max(issue.column - offset - 1, 0)
w =
if is_nil(issue.trigger) do
1
else
issue.trigger
|> to_string()
|> String.length()
end
[
UI.edge([outer_color, :faint], @indent),
inner_color,
String.duplicate(" ", x),
:faint,
String.duplicate("^", w)
]
|> UI.puts()
end
defp print_issue_line_no(source_file, term_width, issue, outer_color, inner_color) do
raw_line = SourceFile.line_at(source_file, issue.line_no)
line = String.trim(raw_line)
UI.puts_edge([outer_color, :faint])
[
UI.edge([outer_color, :faint]),
:cyan,
:faint,
String.duplicate(" ", @indent - 2),
UI.truncate(line, term_width - @indent)
]
|> UI.puts()
if issue.column, do: print_issue_column(raw_line, line, issue, outer_color, inner_color)
end
end