lint: update W59 (no checksum on url) to always display a warning, no…

… more tied to --check-upstream option

src/state/opamFileTools.ml

@@ -299,11 +299,11 @@ let t_lint ?check_extra_files ?(check_upstream=false) ?(all=false) t =
         | #OpamUrl.version_control -> true
         | _ -> false)
   in
-  let check_upstream =
-    check_upstream &&
+  let is_url_archive =
     not (OpamFile.OPAM.has_flag Pkgflag_Conf t) &&
     url_vcs = Some false
   in
+  let check_upstream = check_upstream && is_url_archive in
   let check_double compare to_str lst =
     let double =
       List.sort compare lst
@@ -700,7 +700,7 @@ let t_lint ?check_extra_files ?(check_upstream=false) ?(all=false) t =
         Printf.sprintf "Found %s variable%s, predefined one%s" var s_ nvar)
        (rem_test || rem_doc));
     cond 59 `Warning "url doesn't contain a checksum"
-      (check_upstream &&
+      (is_url_archive &&
        OpamStd.Option.map OpamFile.URL.checksum t.url = Some []);
     (let upstream_error =
        if not check_upstream then None else

tests/reftests/archive.test

@@ -430,7 +430,8 @@ Successfully extracted to ${BASEDIR}/good-sha256-good-md5.1
 Clearing cache of downloaded files
 ### :I:5: no checksum
 ### opam lint --package no-checksum
-<default>/no-checksum.1: Passed.
+<default>/no-checksum.1: Warnings.
+           warning 59: url doesn't contain a checksum
 ### opam lint --package no-checksum --check-upstream
 <default>/no-checksum.1: Warnings.
            warning 59: url doesn't contain a checksum

tests/reftests/lint.test

@@ -727,7 +727,8 @@ dev-repo: "hg+https://[email protected]"
 bug-reports: "https://nobug"
 url { src:"an-archive.tgz" }
 ### opam lint ./lint.opam
-${BASEDIR}/lint.opam: Passed.
+${BASEDIR}/lint.opam: Warnings.
+           warning 59: url doesn't contain a checksum
 ### opam lint ./lint.opam --check-upstream
 ${BASEDIR}/lint.opam: Warnings.
            warning 59: url doesn't contain a checksum

tests/reftests/show.test

@@ -353,6 +353,7 @@ depexts devel/llvm10 llvm-10-dev
 opam-version: "2.0"
 url {
   src:"https://an.arch/i/ve.tgz"
+  checksum: "md5=00000000000000000000000000000000"
   mirrors:
     [ "https://a.mi/rror"
       "http://swhid.opam.ocaml.org/swh:1:dir:309cf2674ee7a0749978cf8265ab91a60aea0f7d" ]
@@ -364,18 +365,19 @@ name         swhid
 all-versions dev
 
 <><> Version-specific details <><><><><><><><><><><><><><><><><><><><><><><><><>
-version     dev
-pin         https://an.arch/i/ve.tgz
-url.src     "https://an.arch/i/ve.tgz"
-url.swhid   "swh:1:dir:309cf2674ee7a0749978cf8265ab91a60aea0f7d"
-homepage    "egapemoh"
-bug-reports "https://nobug"
-dev-repo    "hg+https://[email protected]"
-authors     "the testing team"
-maintainer  "[email protected]"
-license     "MIT"
-synopsis    A word
-description Two words.
+version      dev
+pin          https://an.arch/i/ve.tgz
+url.src      "https://an.arch/i/ve.tgz"
+url.swhid    "swh:1:dir:309cf2674ee7a0749978cf8265ab91a60aea0f7d"
+url.checksum "md5=00000000000000000000000000000000"
+homepage     "egapemoh"
+bug-reports  "https://nobug"
+dev-repo     "hg+https://[email protected]"
+authors      "the testing team"
+maintainer   "[email protected]"
+license      "MIT"
+synopsis     A word
+description  Two words.
 ### opam show ./swhid.opam --raw
 opam-version: "2.0"
 name: "swhid"
@@ -390,6 +392,7 @@ bug-reports: "https://nobug"
 dev-repo: "hg+https://[email protected]"
 url {
   src: "https://an.arch/i/ve.tgz"
+  checksum: "md5=00000000000000000000000000000000"
   mirrors: [
     "https://swhid.opam.ocaml.org/swh:1:dir:309cf2674ee7a0749978cf8265ab91a60aea0f7d"
     "https://a.mi/rror"