Don't detect ocaml-ci specifically, improve CI detection

CHANGES.md

@@ -18,6 +18,11 @@
 - Be able to allocate and use user's formatters for stdout/stderr
   (#399, @dinosaure)
 
+- Stop detecting ocamlci specifically, since there's nothing specific
+  about it. Simply use the `CI` env var to detect CIs. Improve CI
+  detection.
+  (#397, @MisterDA)
+
 ### 1.7.0 (2023-02-24)
 
 - Allow skipping a test case from inside the test case (#368, @apeschar)

alcotest-help.txt

@@ -108,7 +108,3 @@ ENVIRONMENT
            Whether Alcotest is running in GitHub Actions, if set to 'true'.
            Display tests errors and outputs GitHub Actions annotations.
 
-       OCAMLCI
-           Whether Alcotest is running in OCaml-CI, if set to 'true'. Display
-           tests errors.
-

src/alcotest-engine/cli.ml

@@ -44,7 +44,7 @@ module Make (P : Platform.MAKER) (M : Monad.S) :
     in
     Cmdliner.Cmd.Env.info "CI" ~doc
 
-  let github_action_env =
+  let github_actions_env =
     let doc =
       Printf.sprintf
         "Whether Alcotest is running in GitHub Actions, if set to %s. Display \
@@ -53,15 +53,6 @@ module Make (P : Platform.MAKER) (M : Monad.S) :
     in
     Cmdliner.Cmd.Env.info "GITHUB_ACTIONS" ~doc
 
-  let ocamlci_env =
-    let doc =
-      Printf.sprintf
-        "Whether Alcotest is running in OCaml-CI, if set to %s. Display tests \
-         errors."
-        (Arg.doc_quote "true")
-    in
-    Cmdliner.Cmd.Env.info "OCAMLCI" ~doc
-
   let alcotest_source_code_position =
     let doc =
       "Whether Alcotest should guess the source code position of test \
@@ -80,8 +71,7 @@ module Make (P : Platform.MAKER) (M : Monad.S) :
   let envs =
     [
       ci_env;
-      github_action_env;
-      ocamlci_env;
+      github_actions_env;
       alcotest_source_code_position;
       alcotest_columns;
     ]

src/alcotest-engine/config.ml

@@ -52,23 +52,15 @@ module Key = struct
     type t = ci
 
     let default =
-      let ci =
-        match Sys.getenv "CI" with
-        | "true" -> true
-        | _ | (exception Not_found) -> false
-      and github_actions =
-        match Sys.getenv "GITHUB_ACTIONS" with
-        | "true" -> true
-        | _ | (exception Not_found) -> false
-      and ocamlci =
-        match Sys.getenv "OCAMLCI" with
-        | "true" -> true
+      let getenv var =
+        match Sys.getenv var with
+        | "true" | "True" -> true
         | _ | (exception Not_found) -> false
       in
-      match (ci, github_actions, ocamlci) with
-      | true, true, false -> `Github_actions
-      | true, false, true -> `OCamlci
-      | true, false, false -> `Unknown
+      let ci = getenv "CI" and github_actions = getenv "GITHUB_ACTIONS" in
+      match (ci, github_actions) with
+      | true, true -> `Github_actions
+      | true, false -> `Unknown
       | _ -> `Disabled
   end
 

src/alcotest-engine/config_intf.ml

@@ -4,7 +4,7 @@ module Types = struct
   type bound = [ `Unlimited | `Limit of int ]
   type filter = name:string -> index:int -> [ `Run | `Skip ]
 
-  type ci = [ `Github_actions | `OCamlci | `Unknown | `Disabled ]
+  type ci = [ `Github_actions | `Unknown | `Disabled ]
   (** All supported Continuous Integration (CI) systems. *)
 
   type t =