opam.2.2~alpha2 env error on Windows 10 / 11

[tmcgilchrist]

Running opam env eval on Windows includes extra chars. It seems to be choosing the wrong encoding for the active shell. I am running this in a cygwin64 terminal on either Windows 10 or 11.

tmcgilchrist@vdi7 ~/code/ocaml/ocaml-grpc
$  eval $(opam env --switch=5.0)
-bash: $'\r': command not found
-bash: $'\r': command not found
-bash: $'\r': command not found
-bash: $'\r': command not found
-bash: $'\r': command not found
-bash: $'\r': command not found

tmcgilchrist@vdi7 ~/code/ocaml/ocaml-grpc
$ opam --version
2.2.0~alpha2

tmcgilchrist@vdi7 ~/code/ocaml/ocaml-grpc
$ opam config report
# opam config report
# opam-version         2.2.0~alpha2
# self-upgrade         no
# system               arch=x86_64 os=win32 os-distribution=cygwin os-version=10.0.22621
# solver               builtin-mccs+glpk
# install-criteria     -removed,-count[avoid-version,changed],-count[version-lag,request],-count[version-lag,changed],-count[missing-depexts,changed],-changed
# upgrade-criteria     -removed,-count[avoid-version,changed],-count[version-lag,solution],-count[missing-depexts,changed],-new
# jobs                 3
# repositories         3 (version-controlled)
# pinned               0
# current-switch       5.0
# invariant            ocaml = 5.0.0 & ocaml-option-mingw
# compiler-packages    flexdll.0.42, ocaml-option-mingw.1, ocaml-variants.5.0.0+pr11846
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       C:/Users/tmcgilchrist/AppData/Local/opam/5.0/lib/ocaml/stublibs;C:/Users/tmcgilchrist/AppData/Local/opam/5.0/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.0.0+pr11846

Manually removing the \r like so eval $(opam env --switch=5.0 | tr -d '\r') fixes the issue.

[rjbou]

What shell are you using ? Cygwin one ?

[tmcgilchrist]

I’m using Cygwin64 shell with Bash.

[maroneze]

FWIW, I'm now temporarily avoiding this issue by running set -o igncr on Cygwin before running other commands. It helps when testing some issues, even if it's not necessarily a good long-term solution.