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ee9d6d7bf2
Introduce CI_TARGET_TRIPLET and CI_TARGET_ABI. Rename CI_HOST_MACHINE and CI_TARGET_MACHINE, respectively, to CI_HOST_ARCH and CI_TARGET_ARCH, following on the conventional target triplet nomenclature. Introduce CI_BUILD_SYSTEM and CI_BUILD_ARCH, following on the GNU Autotools (host/build/target) practice and nomenclature. Ensure that CI_TARGET_SYSTEM, CI_TARGET_ARCH and CI_TARGET_ABI are all initialized when verifying a cross-platform build. Work around an obscure CMake error by ensuring that CMake variables (CMAKE_AR and CMAKE_RANLIB) are initialized to the full executable paths of their CI_* equivalents (CI_AR and CI_RANLIB). Implement other general-purpose improvements: * Check all CI_NO_* variables in an arithmetic context, to allow setting them explicitly to zero in external configurations. * Label the assertions with descriptions of what's being asserted. * Add more comments and tracing printouts.
103 lines
3.6 KiB
Bash
103 lines
3.6 KiB
Bash
# Copyright (c) 2019-2023 Cosmin Truta.
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#
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# Use, modification and distribution are subject
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# to the Boost Software License, Version 1.0.
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# See the accompanying file LICENSE_BSL_1_0.txt
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# or visit http://www.boost.org/LICENSE_1_0.txt
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#
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# SPDX-License-Identifier: BSL-1.0
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test -f "$BASH_SOURCE" ||
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echo >&2 "warning: this module requires Bash version 3 or newer"
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test "${#BASH_SOURCE[@]}" -gt 1 ||
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echo >&2 "warning: this module should be sourced from a Bash script"
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# Reset the locale to avoid surprises from locale-dependent commands.
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export LC_ALL=C
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export LANG=C
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export LANGUAGE=C
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# Reset CDPATH to avoid surprises from the "cd" command.
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export CDPATH=""
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# Initialize the global constants CI_SCRIPT_{NAME,DIR} and CI_TOPLEVEL_DIR.
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CI_SCRIPT_NAME="$(basename -- "$0")"
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CI_SCRIPT_DIR="$(cd "$(dirname -- "$0")" && pwd)"
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CI_TOPLEVEL_DIR="$(cd "$(dirname -- "${BASH_SOURCE[0]}")/../.." && pwd)"
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# Initialize the global constants CI_BUILD_{...} for the host build platform.
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CI_BUILD_ARCH="${CI_BUILD_ARCH:-"$(uname -m | tr 'A-Z/\.-' 'a-z____')"}"
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CI_BUILD_SYSTEM="${CI_BUILD_SYSTEM:-"$(uname -s | tr 'A-Z/\.-' 'a-z____')"}"
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# Initialize the global constants CI_TARGET_{...} for the target platform.
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if [[ $CI_TARGET_ARCH && $CI_TARGET_SYSTEM && $CI_TARGET_ABI ]]
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then
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CI_TARGET_TRIPLET="${CI_TARGET_TRIPLET:-$CI_TARGET_ARCH-$CI_TARGET_SYSTEM-$CI_TARGET_ABI}"
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elif [[ $CI_TARGET_TRIPLET ]]
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then
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CI_TARGET_ARCH="${CI_TARGET_ARCH:-${CI_TARGET_TRIPLET%%-*}}"
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CI_TARGET_DOUBLET_IMPL="${CI_TARGET_TRIPLET#*-}"
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CI_TARGET_SYSTEM="${CI_TARGET_SYSTEM:-${CI_TARGET_DOUBLET_IMPL%%-*}}"
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CI_TARGET_ABI="${CI_TARGET_ABI:-${CI_TARGET_DOUBLET_IMPL#*-}}"
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fi
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CI_TARGET_ARCH="${CI_TARGET_ARCH:-"$CI_BUILD_ARCH"}"
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CI_TARGET_SYSTEM="${CI_TARGET_SYSTEM:-"$CI_BUILD_SYSTEM"}"
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function ci_info {
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printf >&2 "%s: %s\\n" "$CI_SCRIPT_NAME" "$*"
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}
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function ci_warn {
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printf >&2 "%s: warning: %s\\n" "$CI_SCRIPT_NAME" "$*"
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}
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function ci_err {
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printf >&2 "%s: error: %s\\n" "$CI_SCRIPT_NAME" "$*"
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exit 2
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}
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function ci_err_internal {
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printf >&2 "%s: internal error: %s\\n" "$CI_SCRIPT_NAME" "$*"
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printf >&2 "ABORTED\\n"
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# Exit with the conventional SIGABRT code.
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exit 134
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}
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function ci_assert {
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# Use the "test" built-in command instead of the "[[ ]]" syntax,
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# to ensure the a-priori expansion of all assertion arguments.
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# (Consistently, both "ci_assert" and "test" have a command-like behavior.)
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[[ $# -ge 2 ]] ||
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ci_err_internal "failed: ci_assert: bad or missing operands"
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local label="$1"
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shift
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test "$@" ||
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ci_err_internal "failed: $label:" test "$@"
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}
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function ci_spawn {
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printf >&2 "%s: executing:" "$CI_SCRIPT_NAME"
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printf >&2 " %q" "$@"
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printf >&2 "\\n"
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"$@"
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}
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# Ensure that the initialization is correct.
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ci_assert "checking CI_TOPLEVEL_DIR" \
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"$CI_TOPLEVEL_DIR/ci/lib/ci.lib.sh" -ef "${BASH_SOURCE[0]}"
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ci_assert "checking CI_SCRIPT_DIR and CI_SCRIPT_NAME" \
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"$CI_SCRIPT_DIR/$CI_SCRIPT_NAME" -ef "$0"
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ci_assert "checking CI_BUILD_ARCH and CI_BUILD_SYSTEM" \
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-n "$CI_BUILD_ARCH" -a -n "$CI_BUILD_SYSTEM"
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ci_assert "checking CI_TARGET_ARCH and CI_TARGET_SYSTEM" \
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-n "$CI_TARGET_ARCH" -a -n "$CI_TARGET_SYSTEM"
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ci_assert "checking CI_TARGET_TRIPLET" \
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x"$CI_TARGET_TRIPLET" = x"" -o \
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x"$CI_TARGET_TRIPLET" = x"$CI_TARGET_ARCH-$CI_TARGET_SYSTEM-$CI_TARGET_ABI"
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ci_assert "checking if CI_NO_TEST is boolean" \
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$((CI_NO_TEST)) -eq $((!!CI_NO_TEST))
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ci_assert "checking if CI_NO_INSTALL is boolean" \
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$((CI_NO_INSTALL)) -eq $((!!CI_NO_INSTALL))
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ci_assert "checking if CI_NO_CLEAN is boolean" \
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$((CI_NO_CLEAN)) -eq $((!!CI_NO_CLEAN))
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