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56 lines
2.8 KiB
Markdown
56 lines
2.8 KiB
Markdown
# Pacroller
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The "Unattended Upgrades" for Arch Linux.
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## Concept
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Parsing the output of pacman and pacman.log, searching for known patterns and notifying the user whether there is a potential error.
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Currently the design is regex-based, any output that is unable to match a set of regex is reported back to the user.
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## Installation
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`yay -S pacroller`
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## Usage
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pacroller has the following subcommands
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```
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run [-d --debug]
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start an upgrade
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if the upgrade fails or pacroller determines that human action is required,
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pacroller writes an exception to the status database, and refuses to run again
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without resetting its failure status.
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status [-v --verbose] [-m --max <number>]
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print details of a previously successful upgrade
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reset
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reset the current failure status
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test-smtp
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send an test email to the configured address
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```
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There is also a systemd timer for scheduled automatic upgrades.
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## Configuration
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Pacroller reads `/etc/pacroller/config.json` on startup.
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### custom sync commands
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Pacroller can be configured to use custom sync commands, which allows the usage of a different set of mirrors when syncing the database. Enable the "custom_sync" option and write your custom `/etc/pacroller/sync.sh`.
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### needrestart
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If the "needrestart" option is enabled, needrestart should be called after a successful upgrade.
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### hold packages
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Put your hold packages in a json keyval {package name: regex}, where the regex should have at least one matching group.
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If pacroller observes any changes of the matching group or the hold package is to be removed, it refuses to upgrade further.
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### ignored pacnew
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A list of pacnew files that are silently ignored during parsing, any other pacnews will trigger a warning and prevent further upgrades.
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### custom pacman hooks and packages
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Custom pacman hooks and packages output matching is configurable via `/etc/pacroller/known_output_override.py`.
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### check systemd status
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The "systemd-check" option allows pacroller to check fo degraded systemd services before an upgrade.
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### check news from archinux.org
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Automatically checks news before upgrade, unless "news-check" is set to false.
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### clear package cache
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Pacroller wipes /var/cache/pacman/pkg after a successful upgrade if the option "clear_pkg_cache" is set.
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### save pacman output
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Every time an upgrade is performed, the pacman output is stored into /var/log/pacroller. This can be configured via the "save_stdout" keyword.
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## Smtp
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Configure `/etc/pacroller/smtp.json` to receive an email notification when an upgrade fails. Note that pacroller will not send any email if stdin is a tty (can be overridden by the `--interactive` switch).
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## Limitations
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- Your favourite package may not be supported, however it's easy to add another set of rules.
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- Restarting the whole system after a kernel upgrade is not implemented.
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- Human interaction is required occasionally.
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