Inconsistent newlines across platforms

[johnwhitington]

#Expected Behavior

Dune screen output the same on different platforms

Actual Behavior

Dune screen output on OS X / Windows differs

Reproduction

OS X:

gorge:Desktop john$ dune init exe helloworld
Success: initialized executable component named helloworld
gorge:Desktop john$

Windows:

John Whitington@DESKTOP-OJQME0H ~/helloworld
$ dune init exe helloworld
Success: initialized executable component named helloworld
     <--- **extra newline here**
John Whitington@DESKTOP-OJQME0H ~/helloworld

OS X:

gorge:helloworld john$ dune build
Info: Creating file dune-project with this contents:
| (lang dune 2.7)
Done: 8/11 (jobs: 1)gorge:helloworld john$ <---- ***missing newline here***

Windows:

John Whitington@DESKTOP-OJQME0H ~/helloworld
$ dune build
Info: Creating file dune-project with this contents:
| (lang dune 2.7)
Done: 8/11 (jobs: 1)
John Whitington@DESKTOP-OJQME0H ~/helloworld

Specifications

• Version of dune (output of dune --version): 2.7.0
• Version of ocaml (output of ocamlc --version) 4.11.1
• Operating system (distribution and version): OS X Catalina / Windows 10 x64 with OCaml from https://fdopen.github.io/opam-repository-mingw/

[johnwhitington]

See also #3737

[ian-barnes]

Linux behaviour is the same as for OS X:

ian@ian-laptop:09:52:45:~/hello$ dune init exe helloworld
Success: initialized executable component named helloworld
ian@ian-laptop:09:52:49:~/hello$ dune build
Info: Creating file dune-project with this contents:
| (lang dune 2.7)
Done: 8/11 (jobs: 1)ian@ian-laptop:09:52:53:~/hello$  <---- ***missing newline here***
ian@ian-laptop:09:52:55:~/hello$ dune --version
2.7.0
ian@ian-laptop:09:53:03:~/hello$ ocamlc --version
4.10.0
ian@ian-laptop:09:53:11:~/hello$ cat /etc/debian_version 
bullseye/sid

[nojb]

There are two issues here as I understand: 1) on Windows, the Cygwin prompt includes a newline prefix which explains the difference between Windows and Linux/OS X, and 2) a missing newline after the status indicator #3737.

1. is a shell configuration issue, not directly related to dune, and
2. should have been fixed in Fix issue #3737 #3767.

Closing this, feel free to re-open if needed. Thanks!