merge

#!/usr/bin/env escript

-mode(compile).

-export([main/1]).

main(_) ->
	Mode = subtree_mode(),
	Repos = read_repos(),
	ok = filelib:ensure_dir(apps_path()),
	[merge(Repo, Mode) || Repo <- Repos].

subtree_mode() ->
	case filelib:is_dir(apps_path()) of
		true -> pull;
		false -> add
	end.

read_repos() ->
	{ok, [{repos, Repos}]} = file:consult(filename:join("support", "repos.config")),
	Repos.

merge({Dir, Suffix, Ref}, add) ->
	io:format("Adding ~s (~s)~n", [Dir, Ref]),
	Path = app_path(Dir),
	Remote = "https://git-wip-us.apache.org/repos/asf/couchdb-" ++ Suffix ++ ".git",
	RemoteName = "subtree-" ++ Suffix,
	cmd("git remote add -f " ++ RemoteName ++ " " ++ Remote),
	cmd("git fetch " ++ RemoteName),
	cmd(
		"git subtree add" ++
		" --prefix=" ++ Path ++
		" " ++ RemoteName ++ " " ++ Ref);
merge({Dir, Suffix, Ref}, pull) ->
	Path = app_path(Dir),
	RemoteName = "subtree-" ++ Suffix,
	cmd("git fetch " ++ RemoteName),
	cmd(
		"git subtree pull" ++
		" --prefix " ++ Path ++
		" " ++ RemoteName ++ " " ++ Ref).

apps_path() ->
	{ok, CWD} = file:get_cwd(),
	filename:join(CWD, "apps") ++ "/".

app_path(Dir) ->
	filename:join("apps", atom_to_list(Dir)).

cmd(Command) ->
	io:format(Command),
	io:format("~n~s", [os:cmd(Command)]).

repos.config

{repos, [
    {b64url, "b64url", "master"},
    {cassim, "cassim", "master"},
    {chttpd, "chttpd", "master"},
    {config, "config", "master"},
    {couch, "couch", "master"},
    {couch_dbupdates, "couch-dbupdates", "master"},
    {couch_event, "couch-event", "master"},
    {couch_index, "couch-index", "master"},
    {couch_log, "couch-log", "master"},
    {couch_mrview, "couch-mrview", "master"},
    {couch_plugins, "couch-plugins", "master"},
    {couch_replicator, "couch-replicator", "master"},
    {couch_stats, "couch-stats", "master"},
    {ddoc_cache, "ddoc-cache", "master"},
    {docs, "documentation", "master"},
    {ets_lru, "ets-lru", "master"},
    {fabric, "fabric", "master"},
    {fauxton, "fauxton", "master"},
    {folsom, "folsom", "master"},
    {global_changes, "global-changes", "master"},
    {goldrush, "goldrush", "0.1.6"},
    {ibrowse, "ibrowse", "master"},
    {ioq, "ioq", "master"},
    {jiffy, "jiffy", "master"},
    {khash, "khash", "master"},
    {lager, "lager", "master"},
    {mem3, "mem3", "master"},
    {mochiweb, "mochiweb", "master"},
    {oauth, "oauth", "master"},
    {rexi, "rexi", "master"},
    {snappy, "snappy", "master"}
]}.

split

#!/usr/bin/env escript

-mode(compile).

-export([main/1]).

main(_) ->
	Repos = read_repos(),
	[split(Repo) || Repo <- Repos].

read_repos() ->
	{ok, [{repos, Repos}]} = file:consult(filename:join("support", "repos.config")),
	Repos.

split({Dir, Suffix, Ref = "master"}) ->
	io:format("Pusing ~p@~s~n", [Dir, Ref]),
	Path = app_path(Dir),
	Remote = "https://github.com/strmpnk/couchdb-" ++ Suffix,
	RemoteName = "subtree-target-" ++ Suffix,
	cmd("git remote add -f " ++ RemoteName ++ " " ++ Remote),
	cmd(
		"git subtree push" ++
		" --prefix=" ++ Path ++
		" " ++ RemoteName ++ " " ++ Ref);
split({Dir, _Suffix, Ref}) ->
	io:format("Skipping ~p@~s~n", [Dir, Ref]).

app_path(Dir) ->
	filename:join("apps", atom_to_list(Dir)).

cmd(Command) ->
	io:format(Command),
	io:format("~n~s", [os:cmd(Command)]).