.\" -*- mode: troff; coding: utf-8 -*-
.TH "nix3-profile-upgrade" "1" ""
.PP
\fBWarning\fR: This program is \fBexperimental\fR and its interface is subject to change.
.SH Name
\fCnix profile upgrade\fR - upgrade packages using their most recent flake
.SH Synopsis
\fCnix profile upgrade\fR [\fIoption\fR\[u2026]] \fIelements\fR\[u2026]
.SH Examples
.IP "\(bu" 2
Upgrade all packages that were installed using a mutable flake
reference:
.LP
.EX
# nix profile upgrade '.*'
.EE
.IP "\(bu" 2
Upgrade a specific package:
.LP
.EX
# nix profile upgrade packages.x86_64-linux.hello
.EE
.IP "\(bu" 2
Upgrade a specific profile element by number:
.LP
.EX
# nix profile list
0 flake:nixpkgs#legacyPackages.x86_64-linux.spotify …

# nix profile upgrade 0
.EE
.SH Description
This command upgrades a previously installed package in a Nix profile,
by fetching and evaluating the latest version of the flake from which
the package was installed.
.RS
.PP
\fBWarning\fR
.PP
This only works if you used a \fImutable\fR flake reference at
installation time, e.g. \fCnixpkgs#hello\fR. It does not work if you
used an \fIimmutable\fR flake reference
(e.g. \fCgithub:NixOS/nixpkgs/13d0c311e3ae923a00f734b43fd1d35b47d8943a#hello\fR),
since in that case the \[u201C]latest version\[u201D] is always the same.
.RE
.SH Options
.IP "\(bu" 2
\fC--profile\fR \fIpath\fR
.br
The profile to update.
.LP
\fBCommon evaluation options:\fR
.IP "\(bu" 2
\fC--arg\fR \fIname\fR \fIexpr\fR
.br
Pass the value \fIexpr\fR as the argument \fIname\fR to Nix functions.
.IP "\(bu" 2
\fC--argstr\fR \fIname\fR \fIstring\fR
.br
Pass the string \fIstring\fR as the argument \fIname\fR to Nix functions.
.IP "\(bu" 2
\fC--eval-store\fR \fIstore-url\fR
.br
The Nix store to use for evaluations.
.IP "\(bu" 2
\fC--impure\fR
.br
Allow access to mutable paths and repositories.
.IP "\(bu" 2
\fC--include\fR / \fC-I\fR \fIpath\fR
.br
Add \fIpath\fR to the list of locations used to look up \fC<...>\fR file names.
.IP "\(bu" 2
\fC--override-flake\fR \fIoriginal-ref\fR \fIresolved-ref\fR
.br
Override the flake registries, redirecting \fIoriginal-ref\fR to \fIresolved-ref\fR.
.LP
\fBCommon flake-related options:\fR
.IP "\(bu" 2
\fC--commit-lock-file\fR
.br
Commit changes to the flake\[u2019]s lock file.
.IP "\(bu" 2
\fC--inputs-from\fR \fIflake-url\fR
.br
Use the inputs of the specified flake as registry entries.
.IP "\(bu" 2
\fC--no-registries\fR
.br
Don\[u2019]t allow lookups in the flake registries. This option is deprecated; use \fC--no-use-registries\fR.
.IP "\(bu" 2
\fC--no-update-lock-file\fR
.br
Do not allow any updates to the flake\[u2019]s lock file.
.IP "\(bu" 2
\fC--no-write-lock-file\fR
.br
Do not write the flake\[u2019]s newly generated lock file.
.IP "\(bu" 2
\fC--override-input\fR \fIinput-path\fR \fIflake-url\fR
.br
Override a specific flake input (e.g. \fCdwarffs/nixpkgs\fR). This implies \fC--no-write-lock-file\fR.
.IP "\(bu" 2
\fC--recreate-lock-file\fR
.br
Recreate the flake\[u2019]s lock file from scratch.
.IP "\(bu" 2
\fC--update-input\fR \fIinput-path\fR
.br
Update a specific flake input (ignoring its previous entry in the lock file).
.LP
\fBOptions that change the interpretation of installables:\fR
.IP "\(bu" 2
\fC--derivation\fR
.br
Operate on the store derivation rather than its outputs.
.IP "\(bu" 2
\fC--expr\fR \fIexpr\fR
.br
Interpret installables as attribute paths relative to the Nix expression \fIexpr\fR.
.IP "\(bu" 2
\fC--file\fR / \fC-f\fR \fIfile\fR
.br
Interpret installables as attribute paths relative to the Nix expression stored in \fIfile\fR. If \fIfile\fR is the character -, then a Nix expression will be read from standard input.