diskimage-builder/elements/ramdisk-base/post-install.d/01-ensure-binaries
Ian Wienand 36b59c001c 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
2015-02-12 10:41:32 +11:00

48 lines
1.1 KiB
Bash
Executable file

#!/bin/bash
# Ensure that all binaries listed in ramdisk elements, exist
if [ ${DIB_DEBUG_TRACE:-1} -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
export TARGET_DIR="/tmp/in_target.d/"
if [ -z $TARGET_DIR ] ; then
echo "Target dir not specified"
exit 1
fi
if [ ! -d $TARGET_DIR ] ; then
echo "Unable to find specified directory in target: $TARGET_DIR"
bash
exit 1
fi
BINARY_DEPS=
for _FILE in $(ls ${TARGET_DIR}/binary-deps.d/) ; do
_FILE="${TARGET_DIR}/binary-deps.d/${_FILE}"
if [ -a $_FILE ]; then
for _LINE in $(cat $_FILE) ; do
BINARY_DEPS="${BINARY_DEPS} $_LINE"
done
fi
done
for _BIN in $BINARY_DEPS ; do
_LOCATION=$(which "$_BIN" || echo "")
if [ -z "$_LOCATION" ]; then
echo "$_BIN is not found in PATH. Please ensure your elements install it"
exit 1
fi
done
if [ "$BINARY_DEPS" == "" ]; then
echo "No binary-deps found"
else
DEPS_OUTPUT="/etc/dib_binary_deps"
echo "Creating binary_deps record at: ${DEPS_OUTPUT}"
echo "$BINARY_DEPS" >${DEPS_OUTPUT}
fi