111 lines
4.3 KiB
Markdown
111 lines
4.3 KiB
Markdown
# update-notify
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Desktop notifications for pending updates on Arch Linux.
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update-notify runs on a systemd user timer and checks:
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- **Repo updates**, using `checkupdates` from pacman-contrib.
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- **AUR updates** for packages in a local aurutils repository (`aur repo -u`).
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- **Custom kernel rebuilds**: when a stock kernel (e.g. `linux-lts`) has a newer version than your custom build of it (e.g. `linux-lts-custom`).
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It sends one notification, and only when its content changes since the last one:
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- Update counts are shown once the total number of updates reaches a threshold (default 30). Reminders for `git-monitor` and pending firmware updates (`fwupdmgr`) are added when those tools are installed, and one to run `trustsight` before building pending AUR updates.
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- Kernel rebuild reminders are always shown, even below the threshold.
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## Requirements
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- `pacman-contrib`
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- `libnotify` and a running notification daemon
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Optional:
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- `aurutils`: check AUR packages in the local repository
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- `fwupd`: check for firmware updates
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- `git-monitor`: remind to check git packages
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- `trustsight`: remind to vet AUR updates before building them
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## Installation
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Build and install the package with the included PKGBUILD:
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```
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makepkg -si
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```
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Or, with aurutils, build it into your local repository with `aur build` and install it with pacman.
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Then enable the timer:
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```
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systemctl --user enable --now update-notify.timer
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```
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The timer runs 5 minutes after boot, then every 6 hours.
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A pacman hook also runs update-notify after every pacman transaction, for each logged-in user whose timer is active, so the notification and the status bar file are current right after an upgrade.
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### Refresh after building packages
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Building into a local repository (`aur build`, `aur sync`) doesn't run pacman, so the hook can't catch it. To run update-notify whenever a repository changes, add the repository files to watch to `update-notify.path`:
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```
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systemctl --user edit update-notify.path
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```
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```
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[Path]
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PathChanged=/home/aur-local/aur-local.db.tar.gz.sig
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PathChanged=/home/custom-pkgs/custom-pkgs.db.tar.gz.sig
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```
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Watch the `.db.tar.gz.sig` file for signed repositories, or `.db.tar.gz` for unsigned ones (`.db` is a symlink). Then enable it:
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```
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systemctl --user enable --now update-notify.path
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```
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## Usage
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```
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update-notify [threshold]
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```
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`threshold` is the minimum number of updates (repo + AUR) before update counts are shown. It overrides the `THRESHOLD` setting below.
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## Configuration
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Settings are read from `$XDG_CONFIG_HOME/update-notify/config` (default `~/.config/update-notify/config`), a bash file that is sourced by the script. All settings are optional:
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- `THRESHOLD`: minimum number of updates before update counts are shown (default 30).
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- `AUR_REPO`: name of the local aurutils repository (default `aur-local`).
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- `KERNELS`: maps each stock kernel package to its custom build (default: `linux`, `linux-lts` and `linux-zen` to `<name>-custom`). Kernels where either package isn't installed are skipped. Set `KERNELS=()` to disable the kernel check.
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A commented sample config is installed with the package. To start from it:
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```
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mkdir -p ~/.config/update-notify
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cp /usr/share/doc/update-notify/config.example ~/.config/update-notify/config
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```
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Kernel versions are compared without `pkgrel`, so a stock packaging-only update doesn't trigger a rebuild reminder. A custom build already in the local repository but not installed yet counts as up to date.
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The content of the last notification is stored in `$XDG_STATE_HOME/update-notify` (default `~/.local/state/update-notify`). Delete it to get the current notification again.
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## Status bars
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Each run also writes the pending updates to `$XDG_STATE_HOME/update-notify/pending`, whether or not the threshold is reached, for status bars such as xmobar to read:
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```
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threshold 30
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repo <pkg> <newver>
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aur <pkg> <newver>
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kernel <custom-pkg> <stock-ver>
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```
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The file reflects the last run, which the pacman hook and `update-notify.path` keep close to current. To keep a bar current in between, drop entries whose installed version (`pacman -Q`) is no longer older than `newver`, or, for `kernel` lines, whose custom build has caught up with `stock-ver` (ignoring `pkgrel`). This only reads local data, so it's cheap to run often.
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## License
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GPL-3.0-or-later. See [LICENSE](LICENSE).
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