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Arch Linux: Check updates and perform upgrades if available (requires yay)
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| #!/usr/bin/env fish | |
| ################################################################## | |
| # Check if there are updates available. # | |
| # -------------------------------------------------------------- # | |
| # First, it runs `checkupdates` (with `-d` to prefetch). If it # | |
| # returns 2, this means it has not found any updates. We then # | |
| # query the AUR database to verify if there are updates on their # | |
| # side. # | |
| # # | |
| # = Exit codes ================================================= # | |
| # 0: updates have been found ; ready to upgrade. # | |
| # 1: an unknown error has happened ; should break. # | |
| # 2: no update available. # | |
| ################################################################## | |
| function _check_updates | |
| sudo checkupdates -d | |
| switch "$status" | |
| case 1 | |
| return 1 | |
| case 2 | |
| # Queries (-Q) the AUR (-a) for updates (-u). | |
| yay -Qau | |
| # yay returns 1 if no updates are available. | |
| if test "$status" -eq 1 | |
| return 2 | |
| end | |
| end | |
| # Happy case (updates have been found). | |
| return 0 | |
| end | |
| ################################################################## | |
| # Perform updates. # | |
| # -------------------------------------------------------------- # | |
| # First, runs `yay` with `--quiet` to avoid too much output. # | |
| # We also set `--sudoloop` in case there are packages that take # | |
| # a while to build, to avoid sudo prompting. We also use # | |
| # `--noconfirm` to avoid interruptions. # | |
| # # | |
| # If `yay` failed for some reason (e.g. pacman updated and yay # | |
| # did not follow yet), we fall back to the classic `pacman`, but # | |
| # this also means we won't get AUR upgrades. # | |
| # # | |
| # The exit code is equal to the one of `yay` or `pacman`. # | |
| ################################################################## | |
| function _make_updates | |
| yay --quiet --sudoloop --noconfirm | |
| if test "$status" -ne 0 | |
| error "yay" "failed for an unknown reason" | |
| fishmsg Info 4 "falling back to pacman: no AUR upgrade will be performed" | |
| sudo pacman -Syyu --quiet --noconfirm | |
| end | |
| # We pass on the exit code. | |
| return "$status" | |
| end | |
| ################################################################## | |
| # Main function. # | |
| # -------------------------------------------------------------- # | |
| # 1. Check updates # | |
| # 2. Perform the upgrades if there are ones available. # | |
| # # | |
| # = Exit codes ================================================= # | |
| # 0: if there is either no update, or the upgrades went without # | |
| # any issue. # | |
| # 1: there was a problem while checking/upgrading. # | |
| ################################################################## | |
| function update | |
| printf "\x1b[1m%s\x1b[22m\n" "◉ Checking updates..." | |
| _check_updates | |
| switch "$status" | |
| case 1 | |
| error "checkupdates" "failed for an unknown reason" | |
| return 1 | |
| case 2 | |
| fishmsg Info 4 "checkupdates" "no updates available" | |
| fishmsg Info 4 "there is nothing to do" | |
| return 0 | |
| end | |
| # Visual separator between the two operations | |
| printf "%s\n" (string repeat -n "$COLUMNS" "-") | |
| printf "\x1b[1m%s\x1b[22m\n" "◉ Updating..." | |
| _make_updates | |
| if test "$status" -ne 0 | |
| error "make_updates" "failed for an unknown reason" | |
| return 1 | |
| end | |
| end |
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