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A static code analysis tool with a focus on code consistency and teaching.
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lib/credo/execution/execution_issues.ex
defmodule Credo.Execution.ExecutionIssues do
@moduledoc false
use GenServer
alias Credo.Execution
alias Credo.Issue
alias Credo.SourceFile
def start_server(exec) do
{:ok, pid} = GenServer.start_link(__MODULE__, [])
%Execution{exec | issues_pid: pid}
end
@doc "Appends an `issue` for the specified `filename`."
def append(%Execution{issues_pid: pid}, issues) when is_list(issues) do
issues
|> Enum.group_by(& &1.filename)
|> Enum.each(fn {filename, issues} ->
GenServer.call(pid, {:append, filename, issues})
end)
end
def append(%Execution{issues_pid: pid}, %Issue{} = issue) do
GenServer.call(pid, {:append, issue.filename, issue})
end
@doc "Appends an `issue` for the specified `filename`."
def append(%Execution{issues_pid: pid}, %SourceFile{filename: filename}, issue) do
GenServer.call(pid, {:append, filename, issue})
end
@doc "Returns the issues for the specified `filename`."
def get(%Execution{issues_pid: pid}, %SourceFile{filename: filename}) do
GenServer.call(pid, {:get, filename})
end
@doc "Sets/overwrites all `issues` for the given Execution struct."
def set(%Execution{issues_pid: pid}, issues) do
GenServer.call(pid, {:set, issues})
end
@doc "Returns all `issues` for the given Execution struct."
def to_map(%Execution{issues_pid: pid}) do
GenServer.call(pid, :to_map)
end
# callbacks
def init(_) do
{:ok, %{}}
end
def handle_call({:append, filename, issue_or_issue_list}, _from, current_state) do
existing_issues = List.wrap(current_state[filename])
new_issue_list = List.wrap(issue_or_issue_list) ++ existing_issues
new_current_state = Map.put(current_state, filename, new_issue_list)
{:reply, new_issue_list, new_current_state}
end
def handle_call({:get, filename}, _from, current_state) do
{:reply, List.wrap(current_state[filename]), current_state}
end
def handle_call({:set, issues}, _from, _current_state) do
new_current_state = Enum.group_by(issues, fn issue -> issue.filename end)
{:reply, new_current_state, new_current_state}
end
def handle_call(:to_map, _from, current_state) do
{:reply, current_state, current_state}
end
end