247 lines
7.1 KiB
Erlang
247 lines
7.1 KiB
Erlang
%% -*- erlang-indent-level: 4; indent-tabs-mode: nil -*-
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%%% @copyright (C) 2013-2014, Carlos Martín Nieto <cmn@dwim.me>
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-module(geef_repo).
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-behaviour(gen_server).
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%% gen_server callbacks
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-export([init/1, handle_call/3, handle_cast/2, handle_info/2,
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terminate/2, code_change/3]).
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%% API
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-export([open/1, init/2, path/1, workdir/1, odb/1, is_bare/1, references/1, discover/1,
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lookup_object/2, revwalk/1, stop/1,
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reference_dwim/2, handle/1, iterator/2]).
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-export([reference_has_log/2]).
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-export([reflog_read/2, reflog_delete/2]).
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-export([config/1]).
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-export([reference_lookup/2]).
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-include("geef_records.hrl").
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-record(state, {handle}).
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%%%===================================================================
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%%% API
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%%%===================================================================
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%% @doc Discover a repository's path from a path contained inside it
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-spec discover(iolist()) -> {ok, binary()} | error | {error, term()}.
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discover(Path) ->
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geef_nif:repository_discover(Path).
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%% @doc Open an existing repository. Path must point to the git-dir or
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%% worktree
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-spec open(iolist()) -> {ok, pid()} | {error, term()}.
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open(Path) ->
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case geef_nif:repository_open(Path) of
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{ok, Handle} ->
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start_link(Handle);
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Other ->
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Other
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end.
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%% @doc Initialize a new repository
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-spec init(iolist(), boolean()) -> {ok, pid()} | {error, term()}.
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init(Path, Bare) ->
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case geef_nif:repository_init(Path, Bare) of
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{ok, Handle} ->
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start_link(Handle);
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Other ->
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Other
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end.
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%% @doc The repository's git-dir path
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-spec path(pid()) -> binary().
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path(Pid) ->
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gen_server:call(Pid, path).
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%% @doc The repository's worktree path
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-spec workdir(pid()) -> binary().
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workdir(Pid) ->
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gen_server:call(Pid, workdir).
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%% @doc The repository's current object database. This encompasses all
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%% the configured backends.
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-spec odb(pid()) -> {ok, pid()} | {error, term}.
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odb(Pid) ->
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gen_server:call(Pid, odb).
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%% @doc Whether the repository is bare
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-spec is_bare(pid()) -> boolean().
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is_bare(Pid) ->
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gen_server:call(Pid, bare).
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%% @doc List of references in the repository.
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-spec references(pid()) -> [binary()].
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references(Pid) ->
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gen_server:call(Pid, refs).
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reference_lookup(Pid, Name) ->
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gen_server:call(Pid, {lookup_reference, Name}).
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reference_resolve(Pid, Name) ->
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gen_server:call(Pid, {lookup_resolve, Name}).
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lookup_object(Pid, Oid) ->
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gen_server:call(Pid, {lookup_object, Oid}).
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%% @doc Get the repository's configuration
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config(Pid) ->
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gen_server:call(Pid, config).
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%% @private
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-spec iterator(pid(), iolist() | undefined) -> {ok, geef_ref:iterator()} | {error, term()}.
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iterator(Pid, Regexp) ->
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gen_server:call(Pid, {iterator, Regexp}).
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%% @private
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reference_dwim(Pid, Name) ->
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gen_server:call(Pid, {dwim_reference, Name}).
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%% @doc Create a revision walker for the given repository.
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revwalk(Pid) ->
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gen_server:call(Pid, revwalk).
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%% @private
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reference_has_log(Pid, Name) ->
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gen_server:call(Pid, {has_log, Name}).
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%% @private
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reflog_read(Pid, Name) ->
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gen_server:call(Pid, {reflog_read, Name}).
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%% @private
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reflog_delete(Pid, Name) ->
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gen_server:call(Pid, {reflog_delete, Name}).
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stop(Pid) ->
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gen_server:call(Pid, stop).
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%% @private
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%% @doc Get the underlying repo resource
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handle(Pid) ->
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gen_server:call(Pid, handle).
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%%%===================================================================
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%%% gen_server callbacks
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%%%===================================================================
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%% @private
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init(Handle) ->
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{ok, #state{handle=Handle}}.
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%% @private
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handle_call(path, _From, State = #state{handle=Handle}) ->
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Reply = geef_nif:repository_get_path(Handle),
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{reply, Reply, State};
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handle_call(workdir, _From, State = #state{handle=Handle}) ->
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Reply = geef_nif:repository_get_workdir(Handle),
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{reply, Reply, State};
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handle_call(odb, _From, State = #state{handle=Handle}) ->
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Reply = handle_odb(Handle),
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{reply, Reply, State};
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handle_call(bare, _From, State = #state{handle=Handle}) ->
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Reply = geef_nif:repository_is_bare(Handle),
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{reply, Reply, State};
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handle_call(refs, _From, State = #state{handle=Handle}) ->
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Reply = geef_nif:reference_list(Handle),
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{reply, Reply, State};
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handle_call({lookup_object, Oid}, _From, State = #state{handle=Handle}) ->
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Reply = geef_nif:object_lookup(Handle, Oid),
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{reply, Reply, State};
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handle_call({iterator, Regexp}, _From, State = #state{handle=Handle}) ->
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Reply = geef_nif:reference_iterator(Handle, Regexp),
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{reply, Reply, State};
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handle_call({dwim_reference, Name}, _From, State = #state{handle=Handle}) ->
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Reply = geef_nif:reference_dwim(Handle, Name),
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{reply, Reply, State};
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handle_call({has_log, Name}, _From, State = #state{handle=Handle}) ->
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Reply = geef_nif:reference_has_log(Handle, Name),
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{reply, Reply, State};
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handle_call({reflog_read, Name}, _From, State = #state{handle=Handle}) ->
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Reply = geef_nif:reflog_read(Handle, Name),
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{reply, Reply, State};
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handle_call({reflog_delete, Name}, _From, State = #state{handle=Handle}) ->
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Reply = geef_nif:reflog_delete(Handle, Name),
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{reply, Reply, State};
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handle_call({lookup_reference, Name}, _From, State = #state{handle=Handle}) ->
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Reply = geef_nif:reference_lookup(Handle, Name),
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{reply, Reply, State};
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handle_call({reference_resolve, Name}, _From, State = #state{handle=Handle}) ->
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Reply = geef_nif:reference_resolve(Handle, Name),
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{reply, Reply, State};
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handle_call(config, _From, State = #state{handle=Handle}) ->
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Reply = handle_config(Handle),
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{reply, Reply, State};
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handle_call(stop, _From, State) ->
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{stop, normal, ok, State};
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handle_call(revwalk, _From, State = #state{handle=Handle}) ->
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Reply = handle_revwalk(Handle),
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{reply, Reply, State};
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handle_call(handle, _From, State = #state{handle=Handle}) ->
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{reply, Handle, State}.
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%% @private
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handle_cast(_Msg, State) ->
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{noreply, State}.
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%% @private
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handle_info(_Info, State) ->
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{noreply, State}.
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%% @private
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terminate(_Reason, _State) ->
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ok.
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%%--------------------------------------------------------------------
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%% @private
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%% @doc
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%% Convert process state when code is changed
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%%
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%% @spec code_change(OldVsn, State, Extra) -> {ok, NewState}
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%% @end
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%%--------------------------------------------------------------------
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code_change(_OldVsn, State, _Extra) ->
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{ok, State}.
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%%%===================================================================
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%%% Internal functions
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%%%==================================================================
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-spec start_link(term()) -> {ok, pid()} | ignore | {error, term()}.
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start_link(Handle) ->
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gen_server:start_link(?MODULE, Handle, []).
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handle_odb(Handle) ->
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case geef_nif:repository_get_odb(Handle) of
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{ok, OdbHandle} ->
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geef_odb:start_link(OdbHandle);
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Other ->
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Other
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end.
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handle_revwalk(Handle) ->
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case geef_nif:revwalk_new(Handle) of
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{ok, WalkHandle} ->
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geef_revwalk:start_link(WalkHandle);
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Error ->
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Error
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end.
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handle_config(Handle) ->
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case geef_nif:repository_get_config(Handle) of
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{ok, ConfigHandle} ->
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geef_config:start_link(ConfigHandle);
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Error ->
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Error
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end.
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