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Add overlay command to run overlays only

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required for building on a different machine to what your live
config is kept on. This way you can build on one machine,
distribute to new machine, then run overlays against a live
config to prevent accidently running code against a live
config in a development or ci environment.
This commit is contained in:
Steven Gravell 2011-09-27 14:15:19 +01:00 committed by Tuncer Ayaz
parent 4a5114b79f
commit 3c7a5804e9
2 changed files with 39 additions and 25 deletions
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3
src/rebar.erl
View file

@ -232,6 +232,7 @@ delete-deps Delete fetched dependencies
list-deps List dependencies
generate [dump_spec=0/1] Build release with reltool
overlay Run reltool overlays only
generate-upgrade previous_release=path Build an upgrade package
@ -289,7 +290,7 @@ command_names() ->
["check-deps", "clean", "compile", "create", "create-app", "create-node",
"ct", "delete-deps", "doc", "eunit", "generate", "generate-appups",
"generate-upgrade", "get-deps", "help", "list-deps", "list-templates",
"update-deps", "version", "xref"].
"update-deps", "overlay", "version", "xref"].
unabbreviate_command_names([]) ->
[];

61
src/rebar_reltool.erl
View file

@ -27,6 +27,7 @@
-module(rebar_reltool).
-export([generate/2,
overlay/2,
clean/2]).
-include("rebar.hrl").
@ -64,6 +65,10 @@ generate(Config, ReltoolFile) ->
?FAIL
end.
overlay(_Config, ReltoolFile) ->
%% Load the reltool configuration from the file
ReltoolConfig = rebar_rel_utils:load_config(ReltoolFile),
process_overlay(ReltoolConfig).
clean(_Config, ReltoolFile) ->
ReltoolConfig = rebar_rel_utils:load_config(ReltoolFile),
@ -93,6 +98,36 @@ check_vsn() ->
end
end.
process_overlay(ReltoolConfig) ->
TargetDir = rebar_rel_utils:get_target_dir(ReltoolConfig),
{_BootRelName, BootRelVsn} =
rebar_rel_utils:get_reltool_release_info(ReltoolConfig),
%% Initialize overlay vars with some basics
%% (that can get overwritten)
OverlayVars0 =
dict:from_list([{erts_vsn, "erts-" ++ erlang:system_info(version)},
{rel_vsn, BootRelVsn},
{target_dir, TargetDir}]),
%% Load up any variables specified by overlay_vars
OverlayVars1 = overlay_vars(OverlayVars0, ReltoolConfig),
OverlayVars = rebar_templater:resolve_variables(dict:to_list(OverlayVars1),
OverlayVars1),
%% Finally, overlay the files specified by the overlay section
case lists:keyfind(overlay, 1, ReltoolConfig) of
{overlay, Overlay} when is_list(Overlay) ->
execute_overlay(Overlay, OverlayVars, rebar_utils:get_cwd(),
TargetDir);
false ->
?INFO("No {overlay, [...]} found in reltool.config.\n", []);
_ ->
?ABORT("{overlay, [...]} entry in reltool.config "
"must be a list.\n", [])
end.
%%
%% Look for overlay_vars file reference. If the user provides an overlay_vars on
%% the command line (i.e. a global), the terms from that file OVERRIDE the one
@ -178,29 +213,7 @@ run_reltool(Server, _Config, ReltoolConfig) ->
ok = create_RELEASES(TargetDir, BootRelName, BootRelVsn),
%% Initialize overlay vars with some basics
%% (that can get overwritten)
OverlayVars0 =
dict:from_list([{erts_vsn, "erts-" ++ erlang:system_info(version)},
{rel_vsn, BootRelVsn},
{target_dir, TargetDir}]),
%% Load up any variables specified by overlay_vars
OverlayVars1 = overlay_vars(OverlayVars0, ReltoolConfig),
OverlayVars = rebar_templater:resolve_variables(dict:to_list(OverlayVars1),
OverlayVars1),
%% Finally, overlay the files specified by the overlay section
case lists:keyfind(overlay, 1, ReltoolConfig) of
{overlay, Overlay} when is_list(Overlay) ->
execute_overlay(Overlay, OverlayVars, rebar_utils:get_cwd(),
TargetDir);
false ->
?INFO("No {overlay, [...]} found in reltool.config.\n", []);
_ ->
?ABORT("{overlay, [...]} entry in reltool.config "
"must be a list.\n", [])
end;
process_overlay(ReltoolConfig);
{error, Reason} ->
?ABORT("Unable to generate spec: ~s\n", [Reason])
@ -330,4 +343,4 @@ create_RELEASES(TargetDir, RelName, RelVsn) ->
{error, Reason} ->
?ABORT("Failed to create RELEASES file: ~p\n",
[Reason])
end.
end.