mirror of
https://github.com/Mbed-TLS/mbedtls.git
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80 lines
2.8 KiB
Bash
80 lines
2.8 KiB
Bash
# -*-mode: sh; sh-shell: bash -*-
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#
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# Copyright The Mbed TLS Contributors
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# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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#
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# This swallows the output of the wrapped tool, unless there is an error.
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# This helps reduce excess logging in the CI.
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# If you are debugging a build / CI issue, you can get complete unsilenced logs
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# by un-commenting the following line (or setting VERBOSE_LOGS in your environment):
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#
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# VERBOSE_LOGS=1
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#
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# This script provides most of the functionality for the adjacent make and cmake
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# wrappers.
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#
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# It requires two variables to be set:
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#
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# TOOL - the name of the tool that is being wrapped (with no path), e.g. "make"
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#
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# NO_SILENCE - a regex that describes the commandline arguments for which output will not
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# be silenced, e.g. " --version | test ". In this example, "make lib test" will
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# not be silent, but "make lib" will be.
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# Identify path to original tool. There is an edge-case here where the quiet wrapper is on the path via
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# a symlink or relative path, but "type -ap" yields the wrapper with it's normalised path. We use
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# the -ef operator to compare paths, to avoid picking the wrapper in this case (to avoid infinitely
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# recursing).
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while IFS= read -r ORIGINAL_TOOL; do
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if ! [[ $ORIGINAL_TOOL -ef "$0" ]]; then break; fi
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done < <(type -ap -- "$TOOL")
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print_quoted_args() {
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# similar to printf '%q' "$@"
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# but produce more human-readable results for common/simple cases like "a b"
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for a in "$@"; do
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# Get bash to quote the string
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printf -v q '%q' "$a"
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simple_pattern="^([-[:alnum:]_+./:@]+=)?([^']*)$"
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if [[ "$a" != "$q" && $a =~ $simple_pattern ]]; then
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# a requires some quoting (a != q), but has no single quotes, so we can
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# simplify the quoted form - e.g.:
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# a b -> 'a b'
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# CFLAGS=a b -> CFLAGS='a b'
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q="${BASH_REMATCH[1]}'${BASH_REMATCH[2]}'"
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fi
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printf " %s" "$q"
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done
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}
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if [[ ! " $* " =~ " --version " ]]; then
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# Display the command being invoked - if it succeeds, this is all that will
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# be displayed. Don't do this for invocations with --version, because
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# this output is often parsed by scripts, so we don't want to modify it.
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printf %s "${TOOL}" 1>&2
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print_quoted_args "$@" 1>&2
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echo 1>&2
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fi
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if [[ " $@ " =~ $NO_SILENCE || -n "${VERBOSE_LOGS}" ]]; then
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# Run original command with no output supression
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exec "${ORIGINAL_TOOL}" "$@"
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else
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# Run original command and capture output & exit status
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TMPFILE=$(mktemp "quiet-${TOOL}.XXXXXX")
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"${ORIGINAL_TOOL}" "$@" > "${TMPFILE}" 2>&1
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EXIT_STATUS=$?
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if [[ $EXIT_STATUS -ne 0 ]]; then
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# On error, display the full output
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cat "${TMPFILE}"
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fi
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# Remove tmpfile
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rm "${TMPFILE}"
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# Propagate the exit status
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exit $EXIT_STATUS
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fi
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