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-rw-r--r--Build/source/libs/libpng/libpng-src/ci/lib/ci.lib.sh90
1 files changed, 90 insertions, 0 deletions
diff --git a/Build/source/libs/libpng/libpng-src/ci/lib/ci.lib.sh b/Build/source/libs/libpng/libpng-src/ci/lib/ci.lib.sh
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index 00000000000..1f3c698b5d7
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+++ b/Build/source/libs/libpng/libpng-src/ci/lib/ci.lib.sh
@@ -0,0 +1,90 @@
+# Copyright (c) 2019-2024 Cosmin Truta.
+#
+# Use, modification and distribution are subject to the MIT License.
+# Please see the accompanying file LICENSE_MIT.txt
+#
+# SPDX-License-Identifier: MIT
+
+test -f "$BASH_SOURCE" ||
+ echo >&2 "warning: this module requires Bash version 3 or newer"
+test "${#BASH_SOURCE[@]}" -gt 1 ||
+ echo >&2 "warning: this module should be sourced from a Bash script"
+
+# Reset the locale to avoid surprises from locale-dependent commands.
+export LC_ALL=C
+export LANG=C
+export LANGUAGE=C
+
+# Reset CDPATH to avoid surprises from the "cd" command.
+export CDPATH=""
+
+# Initialize the global constants CI_SCRIPT_{NAME,DIR} and CI_TOPLEVEL_DIR.
+CI_SCRIPT_NAME="$(basename -- "$0")"
+CI_SCRIPT_DIR="$(cd "$(dirname -- "$0")" && pwd)"
+CI_TOPLEVEL_DIR="$(cd "$(dirname -- "${BASH_SOURCE[0]}")/../.." && pwd)"
+
+# Initialize the global constants CI_BUILD_{...} for the host build platform.
+CI_BUILD_ARCH="${CI_BUILD_ARCH:-"$(uname -m | tr 'A-Z/\.-' 'a-z____')"}"
+CI_BUILD_SYSTEM="${CI_BUILD_SYSTEM:-"$(uname -s | tr 'A-Z/\.-' 'a-z____')"}"
+
+# Initialize the global constants CI_TARGET_{...} for the target platform.
+CI_TARGET_ARCH="${CI_TARGET_ARCH:-"$CI_BUILD_ARCH"}"
+CI_TARGET_SYSTEM="${CI_TARGET_SYSTEM:-"$CI_BUILD_SYSTEM"}"
+
+function ci_info {
+ printf >&2 "%s: %s\\n" "$CI_SCRIPT_NAME" "$*"
+}
+
+function ci_warn {
+ printf >&2 "%s: warning: %s\\n" "$CI_SCRIPT_NAME" "$*"
+}
+
+function ci_err {
+ printf >&2 "%s: error: %s\\n" "$CI_SCRIPT_NAME" "$*"
+ exit 2
+}
+
+function ci_err_internal {
+ printf >&2 "%s: internal error: %s\\n" "$CI_SCRIPT_NAME" "$*"
+ printf >&2 "ABORTED\\n"
+ # Exit with the conventional SIGABRT code.
+ exit 134
+}
+
+function ci_expr {
+ if [[ ${*:-0} == [0-9] ]]
+ then
+ # This is the same as in the else-branch below, albeit much faster
+ # for our intended use cases.
+ return $((!$1))
+ else
+ # The funny-looking compound command "... && return $? || return $?"
+ # allows the execution to continue uninterrupted under "set -e".
+ expr >/dev/null "$@" && return $? || return $?
+ fi
+}
+
+function ci_spawn {
+ printf >&2 "%s: executing:" "$CI_SCRIPT_NAME"
+ printf >&2 " %q" "$@"
+ printf >&2 "\\n"
+ "$@"
+}
+
+# Ensure that the internal initialization is correct.
+[[ $CI_TOPLEVEL_DIR/ci/lib/ci.lib.sh -ef ${BASH_SOURCE[0]} ]] ||
+ ci_err_internal "bad or missing \$CI_TOPLEVEL_DIR"
+[[ $CI_SCRIPT_DIR/$CI_SCRIPT_NAME -ef $0 ]] ||
+ ci_err_internal "bad or missing \$CI_SCRIPT_DIR/\$CI_SCRIPT_NAME"
+[[ $CI_BUILD_ARCH && $CI_BUILD_SYSTEM ]] ||
+ ci_err_internal "missing \$CI_BUILD_ARCH or \$CI_BUILD_SYSTEM"
+[[ $CI_TARGET_ARCH && $CI_TARGET_SYSTEM ]] ||
+ ci_err_internal "missing \$CI_TARGET_ARCH or \$CI_TARGET_SYSTEM"
+
+# Ensure that the user initialization is correct.
+[[ ${CI_NO_TEST:-0} == [01] ]] ||
+ ci_err "bad boolean option: \$CI_NO_TEST: '$CI_NO_TEST'"
+[[ ${CI_NO_INSTALL:-0} == [01] ]] ||
+ ci_err "bad boolean option: \$CI_NO_INSTALL: '$CI_NO_INSTALL'"
+[[ ${CI_NO_CLEAN:-0} == [01] ]] ||
+ ci_err "bad boolean option: \$CI_NO_CLEAN: '$CI_NO_CLEAN'"