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use Bos.OS.File.with_tmp_oc instead to cleanup files immediately

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This commit is contained in:
Hannes Mehnert 2025-01-08 13:03:54 +01:00
parent 420d049ff0
commit b9668365cd
1 changed files with 24 additions and 9 deletions
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33
opamdiff/opamdiff.ml
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@ -178,9 +178,10 @@ let pp_opam_diff ppf { pkg ; effectively_equal ; _ } =
(if effectively_equal then "" else " (effectively equal)") (if effectively_equal then "" else " (effectively equal)")
let detailed_opam_diff pkg l r = let detailed_opam_diff pkg l r =
let ( let* ) = Result.bind in
let opaml = OpamFile.OPAM.write_to_string l in let opaml = OpamFile.OPAM.write_to_string l in
let opamr = let opamr =
(* Let's minimize the difference between opaml and opamr by taking opaml
as template for opamr. *)
let o = OpamFile.make (OpamFilename.raw "opam") in let o = OpamFile.make (OpamFilename.raw "opam") in
OpamFile.OPAM.to_string_with_preserved_format ~format_from_string:opaml o r OpamFile.OPAM.to_string_with_preserved_format ~format_from_string:opaml o r
in in
@ -194,16 +195,30 @@ let detailed_opam_diff pkg l r =
(no_build_install_url l) (no_build_install_url r) (no_build_install_url l) (no_build_install_url r)
in in
let diff = let diff =
let* tmpl = Bos.OS.File.tmp "opaml_%s" in try
let* () = Bos.OS.File.write tmpl opaml in Bos.OS.File.with_tmp_oc "opaml_%s"
let* tmpr = Bos.OS.File.tmp "opamr_%s" in (fun pl oc () ->
let* () = Bos.OS.File.write tmpr opamr in Out_channel.output_string oc opaml;
let cmd = Bos.Cmd.(v "diff" % "-u" % p tmpl % p tmpr) in Out_channel.close oc;
Bos.OS.Cmd.(run_out cmd |> out_string) Bos.OS.File.with_tmp_oc "opamr_%s"
(fun pr oc () ->
Out_channel.output_string oc opamr;
Out_channel.close oc;
let cmd = Bos.Cmd.(v "diff" % "-u" % p pl % p pr) in
Bos.OS.Cmd.(run_out cmd |> out_string))
())
()
with e ->
Error (`Msg ("exception " ^ Printexc.to_string e))
in in
let diff = match diff with let diff = match diff with
| Ok (s, _) -> s | Ok (Ok (Ok (data, _))) -> data
| Error `Msg m -> "error when comparing the opam files: " ^ m | Ok (Ok (Error `Msg msg))
| Ok (Error `Msg msg)
| Error `Msg msg ->
Logs.err (fun m -> m "Error %s while running diff on opam files@.@.%s@.@.%s@.@."
msg opaml opamr);
"Error comparing opam files"
in in
{ pkg ; effectively_equal ; diff } { pkg ; effectively_equal ; diff }