Merge pull request #9 from OCamlPro/z-2020-08-01-use-patches-only

fixes and version 0.9.1

RELEASE.md

@@ -0,0 +1,24 @@
+How to release a new version
+============================
+
+Suppose you want to releave version 0.10.0:
+
+* edit src/opambinGlobals.ml and change `version` to "0.10.0"
+* commit:
+```
+git commit -a -m "version 0.10.0"
+```
+* push:
+```
+git push
+```
+* Go to github.com and merge
+* Draft a new release:
+   v0.10.0
+   Version 0.10.0
+* Go in opam-bin-repository
+  ./scripts/new-opam-bin.sh 0.10.0
+* Commit and push
+  git commit -a -m "add opam-bin.0.10.0"
+  git push
+* You may also want to create a new binary archive for this version

dune

@@ -0,0 +1 @@
+(data_only_dirs test)

src/opambinCommandPreInstall.ml

@@ -43,6 +43,9 @@ let action args =
   OpambinMisc.make_cache_dir ();
   match args with
   | name :: _version :: _depends :: [] ->
+    let marker_dir = OpambinGlobals.opambin_switch_temp_dir () in
+    if not ( Sys.file_exists marker_dir ) then
+      EzFile.make_dir marker_dir;
     List.iter (fun (marker, backup) ->
         if Sys.file_exists marker then
           Sys.rename marker ( backup ~name )

src/opambinGlobals.ml

@@ -11,7 +11,7 @@
 open EzFile.OP
 
 let command = "opam-bin"
-let version = "0.9.0"
+let version = "0.9.1"
 let about =
   Printf.sprintf "%s %s by OCamlPro SAS <contact@ocamlpro.com>"
     command version