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authorEelco Dolstra <edolstra@gmail.com>2020-12-18 14:25:36 +0100
committerEelco Dolstra <edolstra@gmail.com>2020-12-21 13:32:29 +0100
commit16e34085e8f45758b97c41cfcd720552c68a3c98 (patch)
treec846ed429234e09dc467688b0a24a4a1191e51ee /src/nix/profile-upgrade.md
parent0c09f63de84e15c15e8621a53d6d25f023b4ad06 (diff)
Add 'nix profile' manpage
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+R""(
+
+# Examples
+
+* Upgrade all packages that were installed using a mutable flake
+ reference:
+
+ ```console
+ # nix profile upgrade '.*'
+ ```
+
+* Upgrade a specific package:
+
+ ```console
+ # nix profile upgrade packages.x86_64-linux.hello
+ ```
+
+* Upgrade a specific profile element by number:
+
+ ```console
+ # nix profile info
+ 0 flake:nixpkgs#legacyPackages.x86_64-linux.spotify …
+
+ # nix profile upgrade 0
+ ```
+
+# 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.
+
+> **Warning**
+>
+> This only works if you used a *mutable* flake reference at
+> installation time, e.g. `nixpkgs#hello`. It does not work if you
+> used an *immutable* flake reference
+> (e.g. `github:NixOS/nixpkgs/13d0c311e3ae923a00f734b43fd1d35b47d8943a#hello`),
+> since in that case the "latest version" is always the same.
+
+)""