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-rw-r--r--src/rebar_git_resource.erl19
-rw-r--r--src/rebar_hg_resource.erl19
2 files changed, 38 insertions, 0 deletions
diff --git a/src/rebar_git_resource.erl b/src/rebar_git_resource.erl
index 29c9ad7..03aa6d8 100644
--- a/src/rebar_git_resource.erl
+++ b/src/rebar_git_resource.erl
@@ -21,6 +21,7 @@ init(Type, _State) ->
{ok, Resource}.
lock(AppInfo, _) ->
+ check_type_support(),
lock_(rebar_app_info:dir(AppInfo), rebar_app_info:source(AppInfo)).
lock_(AppDir, {git, Url, _}) ->
@@ -43,6 +44,7 @@ lock_(AppDir, {git, Url}) ->
%% Return true if either the git url or tag/branch/ref is not the same as the currently
%% checked out git repo for the dep
needs_update(AppInfo, _) ->
+ check_type_support(),
needs_update_(rebar_app_info:dir(AppInfo), rebar_app_info:source(AppInfo)).
needs_update_(Dir, {git, Url, {tag, Tag}}) ->
@@ -111,6 +113,7 @@ parse_git_url(not_scp, Url) ->
end.
download(TmpDir, AppInfo, State, _) ->
+ check_type_support(),
case download_(TmpDir, rebar_app_info:source(AppInfo), State) of
{ok, _} ->
ok;
@@ -307,3 +310,19 @@ parse_tags(Dir) ->
end
end
end.
+
+check_type_support() ->
+ case get({is_supported, ?MODULE}) of
+ true ->
+ ok;
+ _ ->
+ case rebar_utils:sh("git --version", [{return_on_error, true},
+ {use_stdout, false}]) of
+ {error, _} ->
+ ?ABORT("git not installed", []);
+ _ ->
+ put({is_supported, ?MODULE}, true),
+ ok
+ end
+ end.
+
diff --git a/src/rebar_hg_resource.erl b/src/rebar_hg_resource.erl
index 21d4b9d..8139d04 100644
--- a/src/rebar_hg_resource.erl
+++ b/src/rebar_hg_resource.erl
@@ -18,6 +18,7 @@ init(Type, _State) ->
{ok, Resource}.
lock(AppInfo, _) ->
+ check_type_support(),
lock_(rebar_app_info:dir(AppInfo), rebar_app_info:source(AppInfo)).
lock_(AppDir, {hg, Url, _}) ->
@@ -61,6 +62,7 @@ needs_update_(Dir, {hg, Url, Ref}) ->
not ((LocalRef =:= TargetRef) andalso compare_url(Dir, Url)).
download(TmpDir, AppInfo, State, _) ->
+ check_type_support(),
case download_(TmpDir, rebar_app_info:source(AppInfo), State) of
{ok, _} ->
ok;
@@ -110,6 +112,7 @@ download_(Dir, {hg, Url, Rev}, _State) ->
[{cd, filename:dirname(Dir)}]).
make_vsn(AppInfo, _) ->
+ check_type_support(),
make_vsn_(rebar_app_info:dir(AppInfo)).
make_vsn_(Dir) ->
@@ -183,3 +186,19 @@ parse_hg_url("http://" ++ HostPath) ->
parse_hg_url("https://" ++ HostPath) ->
[Host | Path] = rebar_string:lexemes(HostPath, "/"),
{Host, filename:rootname(filename:join(Path), ".hg")}.
+
+check_type_support() ->
+ case get({is_supported, ?MODULE}) of
+ true ->
+ ok;
+ false ->
+ case rebar_utils:sh("hg --version", [{return_on_error, true},
+ {use_stdout, false}]) of
+ {error, _} ->
+ ?ABORT("hg not installed", []);
+ _ ->
+ put({is_supported, ?MODULE}, true),
+ ok
+ end
+ end.
+