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115 lines
2.7 KiB
Bash
115 lines
2.7 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-04-28 17:39:13 +0100 (Tue, 28 Apr 2020)
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#
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# https://github.com/harisekhon/bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/harisekhon
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#
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# Removes local caches for OS package installations and Programming Language development libraries
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#
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# Useful in Docker builds to reduce image size or just general space cleaning
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#
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# eg.
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#
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# Add this to the end of each of your RUN statements in your Dockerfile to clean up the installation caches and not save them in the Docker layer:
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#
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# curl -s https://raw.githubusercontent.com/HariSekhon/bash-tools/master/clean_caches.sh | sh
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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# not using any of myl libraries or path dependencies to allow the above self-contained curl to shell to work for calling from Dockerfile
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#srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# OS package management caches
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cache_list="
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/etc/apk/cache
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/var/lib/apt/lists
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/var/cache/apt
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/var/cache/apk
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/var/cache/yum
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"
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# Personal Language Caches we want to remove to save space:
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#
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# .cache => Python pip
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#
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# .cpan => Perl
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# .cpanm
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#
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# .gem => Ruby
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#
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# Java / Scala / Groovy:
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#
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# .gradle => Gradle
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# .groovy => Groovy (contains grapes/)
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# .ivy => Ivy (Sbt / Gradle)
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# .ivy2
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# .m2 => Maven
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# .sbt => SBT
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personal_cache_list="
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.cache
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.cpan
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.cpanm
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.gem
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.gradle
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.groovy
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.ivy
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.ivy2
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.m2
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.sbt
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"
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echo "Deleting Caches"
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# =====================================
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# Run native OS cache cleaning commands
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#
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# rm -fr is done in the next block
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#if type -P apk &>/dev/null; then
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# rm -rf /var/cache/apk
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if type -P apt-get &>/dev/null; then
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# could accidentally remove things it shouldn't
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#apt-get autoremove -y
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apt-get clean
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elif type -P yum &>/dev/null; then
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# could accidentally remove things it shouldn't
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#yum autoremove -y
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yum clean all
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fi
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# =========================
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# Delete OS Cache locations
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#
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# safer than for loop - don't risk word splitting with rm
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while read -r directory; do
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[ -n "$directory" ] || continue
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rm -rf "$directory"
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done <<< "$cache_list"
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echo "Deleting Personal Caches"
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# =============================================================
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# Delete Personal Cache locations & Programming Language Caches
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#
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while read -r directory; do
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[ -n "$directory" ] || continue
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# ~ more reliable than $HOME which could be unset
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rm -rf ~/"$directory"
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if [ $EUID != 0 ]; then
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if type -P sudo &>/dev/null; then
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sudo -n rm -rf "/root/$directory"
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fi
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fi
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done <<< "$personal_cache_list"
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echo "Finished deleting caches"
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