Packages
credo
1.7.7
1.7.19
1.7.18
1.7.17
1.7.16
1.7.15
1.7.14
1.7.13
1.7.12
1.7.11
1.7.10
1.7.9
1.7.8
1.7.7
1.7.7-rc.0
1.7.6
1.7.5
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
1.5.5
1.5.4
1.5.3
1.5.2
1.5.1
1.5.0
1.5.0-rc.5
1.5.0-rc.4
1.5.0-rc.3
1.5.0-rc.2
1.5.0-rc.1
1.4.1
1.4.0
1.4.0-rc.2
1.4.0-rc.1
1.3.2
1.3.1
1.3.0
1.3.0-rc3
1.3.0-rc2
1.3.0-rc1
1.2.3
1.2.2
1.2.1
1.2.0
1.2.0-rc4
1.2.0-rc3
1.2.0-rc2
1.2.0-rc1
1.1.5
1.1.4
1.1.3
1.1.2
1.1.1
1.1.0
1.1.0-rc3
1.1.0-rc2
1.1.0-rc1
1.0.5
1.0.4
1.0.3
1.0.2
1.0.1
1.0.1-rc1
1.0.0
1.0.0-rc1
0.10.2
0.10.1
0.10.0
0.9.3
0.9.2
0.9.1
0.9.0
0.9.0-rc8
0.9.0-rc7
0.9.0-rc6
0.9.0-rc5
0.9.0-rc4
0.9.0-rc3
0.9.0-rc2
0.9.0-rc1
0.8.10
0.8.9
0.8.8
0.8.7
0.8.6
0.8.5
0.8.4
0.8.3
0.8.2
0.8.1
0.8.0
0.8.0-rc7
0.8.0-rc6
0.8.0-rc5
0.8.0-rc4
0.8.0-rc3
0.8.0-rc2
0.8.0-rc1
0.7.4
0.7.3
0.7.2
0.7.1
0.7.0
0.6.1
0.6.0
0.6.0-rc2
0.6.0-rc1
0.5.3
0.5.2
0.5.1
0.5.0
0.4.14
0.4.13
0.4.12
0.4.11
0.4.10
0.4.10-dev
0.4.9
0.4.8
0.4.7
0.4.6
0.4.5
0.4.4
0.4.3
0.4.2
0.4.1
0.4.0
0.4.0-beta5
0.4.0-beta4
0.4.0-beta3
0.4.0-beta2
0.4.0-beta1
0.3.13
0.3.12
0.3.11
0.3.10
0.3.9
0.3.8
0.3.7
0.3.6
0.3.5
0.3.4
0.3.3
0.3.2
0.3.1
0.3.0
0.3.0-dev2
0.3.0-dev
0.2.6
0.2.5
0.2.4
0.2.3
0.2.2
0.2.1
0.2.0
0.1.10
0.1.9
0.1.8
0.1.7
0.1.6
0.1.5
0.1.4
0.1.3
0.1.2
0.1.1
0.1.0
0.0.1-dev
A static code analysis tool with a focus on code consistency and teaching.
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lib/credo/cli/output/shell.ex
defmodule Credo.CLI.Output.Shell do
@moduledoc false
# This module is used by `Credo.CLI.Output.UI` to write to the shell.
use GenServer
def start_link(opts \\ []) do
{:ok, _pid} = GenServer.start_link(__MODULE__, opts, name: __MODULE__)
end
def puts do
puts("")
end
@doc "Write the given `value` to `:stdout`."
def puts(value) do
GenServer.call(__MODULE__, {:puts, value})
end
def use_colors(use_colors) do
GenServer.call(__MODULE__, {:use_colors, use_colors})
end
def suppress_output(callback_fn) do
GenServer.call(__MODULE__, {:suppress_output, true})
callback_fn.()
GenServer.call(__MODULE__, {:suppress_output, false})
end
@doc "Like `puts/1`, but writes to `:stderr`."
def warn(value) do
GenServer.call(__MODULE__, {:warn, value})
end
# callbacks
def init(_) do
{:ok, %{use_colors: true, suppress_output: false}}
end
def handle_call({:suppress_output, suppress_output}, _from, current_state) do
new_state = Map.put(current_state, :suppress_output, suppress_output)
{:reply, nil, new_state}
end
def handle_call({:use_colors, use_colors}, _from, current_state) do
new_state = Map.put(current_state, :use_colors, use_colors)
{:reply, nil, new_state}
end
def handle_call({:puts, _value}, _from, %{suppress_output: true} = current_state) do
{:reply, nil, current_state}
end
def handle_call(
{:puts, value},
_from,
%{use_colors: true, suppress_output: false} = current_state
) do
do_puts(value)
{:reply, nil, current_state}
end
def handle_call(
{:puts, value},
_from,
%{use_colors: false, suppress_output: false} = current_state
) do
value
|> remove_colors()
|> do_puts()
{:reply, nil, current_state}
end
def handle_call({:warn, _value}, _from, %{suppress_output: true} = current_state) do
{:reply, nil, current_state}
end
def handle_call(
{:warn, value},
_from,
%{use_colors: true, suppress_output: false} = current_state
) do
do_warn(value)
{:reply, nil, current_state}
end
def handle_call(
{:warn, value},
_from,
%{use_colors: false, suppress_output: false} = current_state
) do
value
|> remove_colors()
|> do_warn()
{:reply, nil, current_state}
end
defp remove_colors(value) do
value
|> List.wrap()
|> List.flatten()
|> Enum.reject(&is_atom/1)
end
defp do_puts(value) do
Bunt.puts(value)
end
defp do_warn(value) do
Bunt.warn(value)
end
end