51 lines
1.4 KiB
Bash
Executable File
51 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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## `echo`s:
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## * 'true' - if all upgrades have been installed
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## * 'false' - if there are pending upgrades
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## * nothing - if apt-get is currently locked
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##
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## Forwards the exit code of the package manager.
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if [ -e /etc/system-release ]; then
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## Fedora
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if command -v dnf >/dev/null; then
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yum=dnf
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else
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yum=yum
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fi
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# shellcheck disable=SC2034
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yum_output="$($yum -q check-update 2>&1)"
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exit_code="$?"
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[ "$exit_code" -eq 100 ] && echo "false" && exit 0
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[ "$exit_code" -eq 0 ] && echo "true"
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elif [ -e /etc/debian_version ]; then
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## Debian
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set -e
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set -o pipefail
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# shellcheck disable=SC2034
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apt_get_update_output="$(apt-get -q update 2>&1)"
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apt_get_upgrade_output="$(LANG="C" apt-get -s upgrade 2>&1)"
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exit_code="$?"
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echo "$apt_get_upgrade_output" | awk "/^Inst/{ print $2 }" | [ "$(wc -L)" -eq 0 ] && echo "true" || echo "false"
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elif [ -e /etc/arch-release ]; then
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## Archlinux
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set -e
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set -o pipefail
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checkupdates_output="$(checkupdates 2>&1)"
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exit_code="$?"
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echo "$checkupdates_output" | grep -qF -- '->' && echo "false" || echo "true"
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elif [ -e /etc/gentoo-release ]; then
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## Gentoo
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set -e
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set -o pipefail
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emerge_output="$(emerge -puDv @world 2>&1)"
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exit_code="$?"
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echo "$emerge_output" | grep -qF -- '[ebuild' && echo "false" || echo "true"
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else
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echo "Check not implemented for this distribution" >&2
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exit 1
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fi
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exit "$exit_code"
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