Check that the repositories given to "opam repository remove" actuall…

…y exist

master_changes.md

@@ -70,6 +70,7 @@ users)
   * [BUG] Fix SWH liveness check [#6036 @rjbou - fix #5721]
   * Update SWH API request [#6036 @rjbou]
   * Rework SWH fallback to have a more correct archive retrieval and more fine grained error handling [#6036 @rjbou - fix #5721]
+  * Check that the repositories given to `opam repository remove` actually exist [#5014 @kit-ty-kate - fixes #5012]
 
 ## Lock
 
@@ -185,6 +186,7 @@ users)
 ## opam-client
   * `OpamArg.InvalidCLI`: export exception [#6150 @rjbou]
   * `OpamArg`: export `require_checksums` and `no_checksums`, that are shared with `build_options` [#5563 @rjbou]
+  * `OpamRepositoryCommand.switch_repos`: expose the function [#5014 @kit-ty-kate]
 
 ## opam-repository
   * `OpamDownload.get_output`: fix `wget` option for `POST` requests [#6036 @rjbou]

src/client/opamCommands.ml

@@ -2345,13 +2345,14 @@ let repository cli =
       OpamStd.List.insert_at rank new_repo
         (List.filter (( <> ) new_repo ) repos)
     in
-    let check_for_repos rt names err =
+    let check_for_repos repos names err =
       match
         List.filter (fun n ->
-            not (OpamRepositoryName.Map.mem n rt.repositories))
+            not (List.exists (OpamRepositoryName.equal n) repos))
           names
-      with [] -> () | l ->
-        err (OpamStd.List.concat_map " " OpamRepositoryName.to_string l)
+      with [] -> true | l ->
+        err (OpamStd.List.concat_map " " OpamRepositoryName.to_string l);
+        List.compare_lengths l names <> 0
     in
     OpamGlobalState.with_ `Lock_none @@ fun gt ->
     let all_switches = OpamFile.Config.installed_switches gt.config in
@@ -2421,33 +2422,51 @@ let repository cli =
       `Ok ()
     | Some `remove, names ->
       let names = List.map OpamRepositoryName.of_string names in
-      let rm =
-        List.filter (fun n ->
-            not (List.exists (OpamRepositoryName.equal n) names))
-      in
       let full_wipe = List.mem `All scope in
       let global = global || full_wipe in
-      let gt =
-        OpamRepositoryCommand.update_selection gt
-          ~global ~switches:switches rm
-      in
       if full_wipe then
         OpamRepositoryState.with_ `Lock_write gt @@ fun rt ->
-        check_for_repos rt names
+        let repos =
+          OpamRepositoryName.Map.keys rt.OpamStateTypes.repositories
+        in
+        ignore @@ check_for_repos repos names
           (OpamConsole.warning
              "No configured repositories by these names found: %s");
         OpamRepositoryState.drop @@
         List.fold_left OpamRepositoryCommand.remove rt names
-      else if scope = [`Current_switch] then
-        OpamConsole.msg
-          "Repositories removed from the selections of switch %s. \
-           Use '--all' to forget about them altogether.\n"
-          (OpamSwitch.to_string (OpamStateConfig.get_switch ()));
+      else begin
+        let has_known_repos =
+          OpamRepositoryState.with_ `Lock_none gt @@ fun rt ->
+          List.fold_left (fun has_known_repos switch ->
+              let repos = OpamRepositoryCommand.switch_repos rt switch in
+              check_for_repos repos names
+                (OpamConsole.warning
+                   "No configured repositories by these names found in \
+                    the selection of switch '%s': %s"
+                   (OpamSwitch.to_string switch))
+              || has_known_repos)
+            false switches
+        in
+        if scope = [`Current_switch] && has_known_repos then
+          OpamConsole.msg
+            "Repositories removed from the selections of switch %s. \
+             Use '--all' to forget about them altogether.\n"
+            (OpamSwitch.to_string (OpamStateConfig.get_switch ()));
+      end;
+      let rm =
+        List.filter (fun n ->
+            not (List.exists (OpamRepositoryName.equal n) names))
+      in
+      ignore @@ OpamRepositoryCommand.update_selection gt
+        ~global ~switches:switches rm;
       `Ok ()
     | Some `add, [name] ->
       let name = OpamRepositoryName.of_string name in
       OpamRepositoryState.with_ `Lock_none gt (fun rt ->
-          check_for_repos rt [name]
+          let repos =
+            OpamRepositoryName.Map.keys rt.OpamStateTypes.repositories
+          in
+          ignore @@ check_for_repos repos [name]
             (OpamConsole.error_and_exit `Not_found
                "No configured repository '%s' found, you must specify an URL"));
       OpamGlobalState.drop @@

src/client/opamRepositoryCommand.mli

@@ -14,6 +14,9 @@
 open OpamTypes
 open OpamStateTypes
 
+(** Returns the repository names registered in the given switch *)
+val switch_repos : 'a repos_state -> OpamSwitch.t -> OpamRepositoryName.t list
+
 (** List the selected repositories in the global default and/or selected
     switches. *)
 val list:

tests/reftests/repository.test

@@ -894,13 +894,14 @@ to-many-commits
 oper3
 oper
 ### opam repository remove does-not-exist
-Repositories removed from the selections of switch rm-unknown. Use '--all' to forget about them altogether.
+[WARNING] No configured repositories by these names found in the selection of switch 'rm-unknown': does-not-exist
 ### opam repository remove does-not-exist --all
 [WARNING] No configured repositories by these names found: does-not-exist
 ### opam repository remove does-not-exist oper
+[WARNING] No configured repositories by these names found in the selection of switch 'rm-unknown': does-not-exist
 Repositories removed from the selections of switch rm-unknown. Use '--all' to forget about them altogether.
 ### opam repository remove does-not-exist repo2
-Repositories removed from the selections of switch rm-unknown. Use '--all' to forget about them altogether.
+[WARNING] No configured repositories by these names found in the selection of switch 'rm-unknown': does-not-exist repo2
 ### opam repository remove does-not-exist repo2 --all
 [WARNING] No configured repositories by these names found: does-not-exist
 ### opam repository --all --short