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home-environment: extra message on nix-env error

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When profile installation fails during activation we'll print an extra
message that explain that, if the error is due to conflicting
packages, then it may be that the user has a manually installed copy
of the package.

Fixes #1244
This commit is contained in:
Robert Helgesson 2021-04-29 17:53:56 +02:00
parent 137a584e22
commit d57c59e7cb
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GPG key ID: 36BDAA14C2797E89
1 changed files with 18 additions and 1 deletions
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19
modules/home-environment.nix
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@ -493,7 +493,24 @@ in
''
else
''
$DRY_RUN_CMD nix-env -i ${cfg.path}
if ! $DRY_RUN_CMD nix-env -i ${cfg.path} ; then
cat <<EOF
Oops, nix-env failed to install your new Home Manager profile!
Perhaps there is a conflict with a package that was installed using
'nix-env -i'? Try running
nix-env -q
and if there is a conflicting package you can remove it with
nix-env -e {package name}
Then try activating your Home Manager configuration again.
EOF
exit 1
fi
''
);