Runtime checks

- Check for presence of WX when running a GUI app
- Ensure current Erlang runtime matches bytecode on Linux

unix/get_zx

@@ -6,8 +6,15 @@
 version=0.12.3
 zx="zx-$version"
 tarball="$zx.tar.gz"
+target="https://zxq9.com/projects/zomp/$tarball"
+
+if command -v wget &> /dev/null
+  then
+    wget -nv "$target"
+  else
+    curl -s "$target" --output "$tarball"
+fi
 
-wget -nv "https://zxq9.com/projects/zomp/$tarball"
 tar -zxf "$tarball"
 cd "$zx"
 chmod +x install

unix/zx

@@ -9,12 +9,29 @@ export ZOMP_DIR="${ZOMP_DIR:-$HOME/zomp}"
 export ZX_VERSION=$(cat "$ZOMP_DIR/etc/version.txt")
 export ZX_DIR="$ZOMP_DIR/lib/otpr/zx/$ZX_VERSION"
 
+last_file="$ZOMP_DIR/last.erts"
+if [[ -f "$last_file" ]]
+    then
+        last_erts=$(cat "$last_file")
+    else
+        last_erts="NONE"
+fi
+
+curr_erts=$(erl -version 2>&1)
+if [[ $last_erts != $curr_erts ]]
+  then
+    pushd "$ZOMP_DIR/lib" > /dev/null
+    find . -name "*.beam" -type f -delete
+    echo "$curr_erts" > "$last_file"
+    popd > /dev/null
+fi
+
 start_dir="$PWD"
 cd "$ZX_DIR"
 if [ ! -f ebin/zx.beam ]
   then
     chmod +x make_zx
-    ./make_zx
+    ./make_zx 1>&2
 fi
 cd "$start_dir"
 erl -noshell -pa "$ZX_DIR/ebin" -run zx do -extra $@

unix/zxh

@@ -9,12 +9,29 @@ export ZOMP_DIR="${ZOMP_DIR:-$HOME/zomp}"
 export ZX_VERSION=$(cat "$ZOMP_DIR/etc/version.txt")
 export ZX_DIR="$ZOMP_DIR/lib/otpr/zx/$ZX_VERSION"
 
+last_file="$ZOMP_DIR/last.erts"
+if [[ -f "$last_file" ]]
+    then
+        last_erts=$(cat "$last_file")
+    else
+        last_erts="NONE"
+fi
+
+curr_erts=$(erl -version 2>&1)
+if [[ $last_erts != $curr_erts ]]
+  then
+    pushd "$ZOMP_DIR/lib" > /dev/null
+    find . -name "*.beam" -type f -delete
+    echo "$curr_erts" > "$last_file"
+    popd > /dev/null
+fi
+
 start_dir="$PWD"
 cd "$ZX_DIR"
 if [ ! -f ebin/zx.beam ]
   then
     chmod +x make_zx
-    ./make_zx
+    ./make_zx 1>&2
 fi
 cd "$start_dir"
 erl -pa "$ZX_DIR/ebin" -run zx do -extra $@

zomp/etc/version.txt

@@ -1 +1 @@
-0.12.5
+0.12.6

zomp/lib/otpr/zx/0.12.6/ebin/zx.app

@@ -1,6 +1,6 @@
 {application,zx,
              [{description,"An Erlang development tool and Zomp user client"},
-              {vsn,"0.12.5"},
+              {vsn,"0.12.6"},
               {applications,[stdlib,kernel]},
               {modules,[zx,zx_auth,zx_conn,zx_conn_sup,zx_daemon,zx_key,
                         zx_lib,zx_local,zx_net,zx_peer,zx_peer_man,

zomp/lib/otpr/zx/0.12.6/src/zx.erl

@@ -24,7 +24,7 @@
 %%% @end
 
 -module(zx).
--vsn("0.12.5").
+-vsn("0.12.6").
 -behavior(application).
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").
@@ -1173,11 +1173,11 @@ fetch2(ID) ->
 %% Gets all the target application's ducks in a row and launches them, then enters
 %% the exec_wait/1 loop to wait for any queries from the application.
 
-execute(lib, PackageID, _, _, _) ->
+execute(gui, PackageID, Meta, Dir, RunArgs) ->
-    Message = "Lib ~ts is available on the system, but is not a standalone app.",
+    case wx_available() of
-    {ok, PackageString} = zx_lib:package_string(PackageID),
+        true  -> execute(PackageID, Meta, Dir, RunArgs);
-    ok = tell(Message, [PackageString]),
+        false -> {error, "WX (GUI system) is not found. Aborting."}
-    init:stop();
+    end;
 execute(cli, PackageID, Meta, Dir, RunArgs) ->
     Name = element(2, PackageID),
     ok = zx_daemon:pass_meta(Meta, Dir, RunArgs),
@@ -1190,15 +1190,32 @@ execute(cli, PackageID, Meta, Dir, RunArgs) ->
             Mod = list_to_atom(ModName),
             Mod:start(RunArgs)
     end;
-execute(Type, PackageID, Meta, Dir, RunArgs) ->
+execute(app, PackageID, Meta, Dir, RunArgs) ->
+    execute(PackageID, Meta, Dir, RunArgs);
+execute(lib, PackageID, _, _, _) ->
+    Message = "Lib ~ts is available on the system, but is not a standalone app.",
     {ok, PackageString} = zx_lib:package_string(PackageID),
-    ok = tell("Starting ~p ~ts.", [Type, PackageString]),
+    ok = tell(Message, [PackageString]),
+    init:stop().
+
+execute(PackageID, Meta, Dir, RunArgs) ->
+    {ok, PackageString} = zx_lib:package_string(PackageID),
+    ok = tell("Starting ~ts.", [PackageString]),
     Name = element(2, PackageID),
     ok = zx_daemon:pass_meta(Meta, Dir, RunArgs),
     AppTag = list_to_atom(Name),
     ok = ensure_all_started(AppTag, permanent),
     log(info, "Launcher complete.").
 
+wx_available() ->
+    try
+        _ = wx:null(),
+        true
+    catch
+        error:undef ->
+        false
+    end.
+
 
 -spec ensure_all_started(AppMod, Type) -> ok
     when AppMod :: module(),

zomp/lib/otpr/zx/0.12.6/src/zx_auth.erl

@@ -9,7 +9,7 @@
 %%% @end
 
 -module(zx_auth).
--vsn("0.12.5").
+-vsn("0.12.6").
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").
 -license("GPL-3.0").

zomp/lib/otpr/zx/0.12.6/src/zx_conn.erl

@@ -7,7 +7,7 @@
 %%% @end
 
 -module(zx_conn).
--vsn("0.12.5").
+-vsn("0.12.6").
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").
 -license("GPL-3.0").

zomp/lib/otpr/zx/0.12.6/src/zx_conn_sup.erl

@@ -5,7 +5,7 @@
 %%% @end
 
 -module(zx_conn_sup).
--vsn("0.12.5").
+-vsn("0.12.6").
 -behavior(supervisor).
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").

zomp/lib/otpr/zx/0.12.6/src/zx_daemon.erl

@@ -138,7 +138,7 @@
 %%% @end
 
 -module(zx_daemon).
--vsn("0.12.5").
+-vsn("0.12.6").
 -behavior(gen_server).
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").

zomp/lib/otpr/zx/0.12.6/src/zx_key.erl

@@ -8,7 +8,7 @@
 %%% @end
 
 -module(zx_key).
--vsn("0.12.5").
+-vsn("0.12.6").
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").
 -license("GPL-3.0").

zomp/lib/otpr/zx/0.12.6/src/zx_lib.erl

@@ -10,7 +10,7 @@
 %%% @end
 
 -module(zx_lib).
--vsn("0.12.5").
+-vsn("0.12.6").
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").
 -license("GPL-3.0").

zomp/lib/otpr/zx/0.12.6/src/zx_local.erl

@@ -6,7 +6,7 @@
 %%% @end
 
 -module(zx_local).
--vsn("0.12.5").
+-vsn("0.12.6").
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").
 -license("GPL-3.0").

zomp/lib/otpr/zx/0.12.6/src/zx_net.erl

@@ -5,7 +5,7 @@
 %%% @end
 
 -module(zx_net).
--vsn("0.12.5").
+-vsn("0.12.6").
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").
 -license("GPL-3.0").

zomp/lib/otpr/zx/0.12.6/src/zx_peer.erl

@@ -8,7 +8,7 @@
 %%% @end
 
 -module(zx_peer).
--vsn("0.12.5").
+-vsn("0.12.6").
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").
 -license("GPL-3.0").

zomp/lib/otpr/zx/0.12.6/src/zx_peer_man.erl

@@ -9,7 +9,7 @@
 %%% @end
 
 -module(zx_peer_man).
--vsn("0.12.5").
+-vsn("0.12.6").
 -behavior(gen_server).
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").

zomp/lib/otpr/zx/0.12.6/src/zx_peer_sup.erl

@@ -6,7 +6,7 @@
 %%% @end
 
 -module(zx_peer_sup).
--vsn("0.12.5").
+-vsn("0.12.6").
 -behaviour(supervisor).
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").

zomp/lib/otpr/zx/0.12.6/src/zx_peers.erl

@@ -10,7 +10,7 @@
 %%% @end
 
 -module(zx_peers).
--vsn("0.12.5").
+-vsn("0.12.6").
 -behavior(supervisor).
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").

zomp/lib/otpr/zx/0.12.6/src/zx_proxy.erl

@@ -5,7 +5,7 @@
 %%% @end
 
 -module(zx_proxy).
--vsn("0.12.5").
+-vsn("0.12.6").
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").
 -license("GPL-3.0").

zomp/lib/otpr/zx/0.12.6/src/zx_sup.erl

@@ -5,7 +5,7 @@
 %%% @end
 
 -module(zx_sup).
--vsn("0.12.5").
+-vsn("0.12.6").
 -behavior(supervisor).
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").

zomp/lib/otpr/zx/0.12.6/src/zx_tty.erl

@@ -6,7 +6,7 @@
 %%% @end
 
 -module(zx_tty).
--vsn("0.12.5").
+-vsn("0.12.6").
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").
 -license("GPL-3.0").

zomp/lib/otpr/zx/0.12.6/src/zx_userconf.erl

@@ -5,7 +5,7 @@
 %%% @end
 
 -module(zx_userconf).
--vsn("0.12.5").
+-vsn("0.12.6").
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").
 -license("GPL-3.0").

zomp/lib/otpr/zx/0.12.6/src/zx_zsp.erl

@@ -7,7 +7,7 @@
 %%% @end
 
 -module(zx_zsp).
--vsn("0.12.5").
+-vsn("0.12.6").
 -author("Craig Everett <zxq9@zxq9.com>").
 -copyright("Craig Everett <zxq9@zxq9.com>").
 -license("GPL-3.0").

zomp/lib/otpr/zx/0.12.6/zomp.meta

@@ -9,7 +9,7 @@
 {license,"MIT"}.
 {modules,[]}.
 {name,"zx"}.
-{package_id,{"otpr","zx",{0,12,5}}}.
+{package_id,{"otpr","zx",{0,12,6}}}.
 {prefix,"zx_"}.
 {repo_url,"https://gitlab.com/zxq9/zx"}.
 {tags,["tools","package manager","erlang"]}.