diskimage-builder/diskimage_builder/elements/dpkg/root.d/99-trim-dpkg

#!/bin/bash

if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
    set -x
fi
set -eu
set -o pipefail

[ -n "$TARGET_ROOT" ]

# During image build, sync calls are expensive overhead
echo 'force-unsafe-io' | sudo tee $TARGET_ROOT/etc/dpkg/dpkg.cfg.d/02apt-speedup > /dev/null

# and remove the translations, too
echo 'Acquire::Languages "none";' | sudo tee $TARGET_ROOT/etc/apt/apt.conf.d/no-languages > /dev/null
Add some speedups to dpkg The docker build folks obsess about image size and speed a bit. Grab a few of their optimizations from their debootstrap build process and apply them to ours. Change-Id: Ic3d3565423b0ae090896d99fd3bf1145eca6303d 2014-11-24 02:27:46 +00:00			`#!/bin/bash`

Standarise tracing for scripts There is a wide variety of tracing options through the various shell scripts. Some use "set -eux", others explicity set xtrace and others do nothing. There is a "-x" option to bin/disk-image-create but it doesn't flow down to the many scripts it calls. This adds a global integer variable set by disk-image-create DIB_DEBUG_TRACE. All scripts have a stanza added to detect this and turn on tracing. Any other tracing methods are rolled into this. So the standard header is --- if [ "${DIB_DEBUG_TRACE:-0}" -gt 0 ]; then set -x fi set -eu set -o pipefail --- Multiple -x options can be specified to dib-create-image, which increases the value of DIB_DEBUG_TRACE. If script authors feel their script should only trace at higher levels, they should modify the "-gt" value. If they feel it should trace by default, they can modify the default value also. Changes to pachset 16 : scripts which currently trace themselves by default have retained this behaviour with DIB_DEBUG_TRACE defaulting to "1". This was done by running [1] on patch set 15. See the thread beginning at [2] dib-lint is also updated to look for the variable being matched. [1] https://gist.github.com/ianw/71bbda9e6acc74ccd0fd [2] http://lists.openstack.org/pipermail/openstack-dev/2014-November/051575.html Change-Id: I6c5a962260741dcf6f89da9a33b96372a719b7b0 2014-09-04 04:56:29 +00:00			`if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then`
			`set -x`
			`fi`
Add some speedups to dpkg The docker build folks obsess about image size and speed a bit. Grab a few of their optimizations from their debootstrap build process and apply them to ours. Change-Id: Ic3d3565423b0ae090896d99fd3bf1145eca6303d 2014-11-24 02:27:46 +00:00			`set -eu`
			`set -o pipefail`

			`[ -n "$TARGET_ROOT" ]`

			`# During image build, sync calls are expensive overhead`
			`echo 'force-unsafe-io' \| sudo tee $TARGET_ROOT/etc/dpkg/dpkg.cfg.d/02apt-speedup > /dev/null`

			`# and remove the translations, too`
			`echo 'Acquire::Languages "none";' \| sudo tee $TARGET_ROOT/etc/apt/apt.conf.d/no-languages > /dev/null`