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7f175a59e1
Currently, if set -e spots a nonzero exit we basically have
no real debug information- it just stops immediately without stating
where or why. This forces our scripts to be stupidly verbose so
we can track roughly where they were, thus when they fail we can
use that information to localize the rough exit point.
Instead we should be traping that set -e induced exit and
outputing necessary debug information to run it down. This includes
outputing the relevant stack trace, or at least what we can get of
it.
The 'die' function is now enhanced to automatically dump the trace
that lead to it. For most consumers this is desired- however for
commandline parsing induced dies ("--board is missing" for example),
the trace is noise. For those cases, a 'die_notrace' function was
added that retains the original non-backtrace behaviour.
Example output via instrumenting cros_generate_breakpad_symbols
w/ the failing command '/bin/false' (nonzero exit code).
Before:
./cros_generate_breakpad_symbols monkeys --board=x86-alex
<no output at all, just exit code 1>
With this CL:
./cros_generate_breakpad_symbols monkeys --board=x86-alex
ERROR : script called: ./cros_generate_breakpad_symbols 'monkeys' '--board=x86-alex'
ERROR : Backtrace: (most recent call is last)
ERROR : file cros_generate_breakpad_symbols, line 207, called: main 'monkeys' '--board=x86-alex'
ERROR : file cros_generate_breakpad_symbols, line 163, called: die_err_trap '/bin/false' '1'
ERROR :
ERROR : Command failed:
ERROR : Command '/bin/false' exited with nonzero code: 1
BUG=chromium-os:30598
TEST=inject a failing command into a script, verify the output.
TEST=inject a 'command not found', verify the output
TEST=cbuildbot x86-generic-full --remote
TEST=cbuildbot arm-tegra2-full --remote
TEST=cbuildbot chromiumos-sdk --remote
Change-Id: I517ffde4d1bb7e2310a74f5a6455b53ba2dea86c
Reviewed-on: https://gerrit.chromium.org/gerrit/17225
Reviewed-by: Brian Harring <ferringb@chromium.org>
Tested-by: Brian Harring <ferringb@chromium.org>
Commit-Ready: Brian Harring <ferringb@chromium.org>
35 lines
1.0 KiB
Bash
Executable File
35 lines
1.0 KiB
Bash
Executable File
#!/bin/bash
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# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Lists all package dependencies of a particular package. Useful to find out
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# all packages depended on by chromeos and chromeos-dev.
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SCRIPT_ROOT=$(dirname $(readlink -f "$0"))
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. "${SCRIPT_ROOT}/common.sh" || { echo "Unable to load common.sh"; exit 1; }
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# Script must be run inside the chroot.
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assert_inside_chroot
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get_default_board
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# Flags.
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DEFINE_string board "$DEFAULT_BOARD" \
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"The board for which the image was built." b
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# Parse flags.
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FLAGS "$@" || exit 1
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eval set -- "${FLAGS_ARGV}"
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[[ -z "${FLAGS_board}" ]] && die_notrace "A board must be specified."
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if [[ -z "${FLAGS_ARGV}" ]]; then
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warn "Usage: ./get_package_list.sh chromeos-base/chromeos > package.list"
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die_notrace "Please specify a package."
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fi
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emerge-$FLAGS_board --emptytree --usepkgonly -p -v --columns \
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$1 2> /dev/null | sed -n -E -e 's/^\[binary[^]]*\] ([^ ]*) .*$/\1/p'
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