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build-package.sh: prevent parallel runs in the same environment 

Avoid corruption of the build environment if build-package.sh was
executed in 2 parallel sessions.
This commit is contained in:
Leonid Pliushch 2019-03-06 16:46:53 +02:00
parent 9fe4647cda
commit 44d28f9f88
3 changed files with 52 additions and 36 deletions
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79
build-package.sh
View File

@ -3,6 +3,16 @@
set -e -o pipefail -u
# Lock file to prevent parallel running in the same environment.
TERMUX_BUILD_LOCK_FILE="/tmp/.termux-build.lck"
if [ ! -e "$TERMUX_BUILD_LOCK_FILE" ]; then
touch "$TERMUX_BUILD_LOCK_FILE"
fi
# Special variable for internal use. It forces script to ignore
# lock file.
: "${TERMUX_BUILD_IGNORE_LOCK:=false}"
# Utility function to log an error message and exit with an error code.
source scripts/build/termux_error_exit.sh
@ -128,35 +138,40 @@ source scripts/build/termux_step_create_debfile.sh
# Finish the build. Not to be overridden by package scripts.
source scripts/build/termux_step_finish_build.sh
termux_step_handle_arguments "$@"
termux_step_setup_variables
termux_step_handle_buildarch
termux_step_start_build
termux_step_extract_package
cd "$TERMUX_PKG_SRCDIR"
termux_step_post_extract_package
termux_step_handle_hostbuild
termux_step_setup_toolchain
termux_step_patch_package
termux_step_replace_guess_scripts
cd "$TERMUX_PKG_SRCDIR"
termux_step_pre_configure
cd "$TERMUX_PKG_BUILDDIR"
termux_step_configure
cd "$TERMUX_PKG_BUILDDIR"
termux_step_post_configure
cd "$TERMUX_PKG_BUILDDIR"
termux_step_make
cd "$TERMUX_PKG_BUILDDIR"
termux_step_make_install
cd "$TERMUX_PKG_BUILDDIR"
termux_step_post_make_install
cd "$TERMUX_PKG_MASSAGEDIR"
termux_step_extract_into_massagedir
cd "$TERMUX_PKG_MASSAGEDIR"
termux_step_massage
cd "$TERMUX_PKG_MASSAGEDIR/$TERMUX_PREFIX"
termux_step_post_massage
termux_step_create_datatar
termux_step_create_debfile
termux_step_finish_build
{
if ! $TERMUX_BUILD_IGNORE_LOCK; then
flock -n 5 || termux_error_exit "Another build is already running within same environment."
fi
termux_step_handle_arguments "$@"
termux_step_setup_variables
termux_step_handle_buildarch
termux_step_start_build
termux_step_extract_package
cd "$TERMUX_PKG_SRCDIR"
termux_step_post_extract_package
termux_step_handle_hostbuild
termux_step_setup_toolchain
termux_step_patch_package
termux_step_replace_guess_scripts
cd "$TERMUX_PKG_SRCDIR"
termux_step_pre_configure
cd "$TERMUX_PKG_BUILDDIR"
termux_step_configure
cd "$TERMUX_PKG_BUILDDIR"
termux_step_post_configure
cd "$TERMUX_PKG_BUILDDIR"
termux_step_make
cd "$TERMUX_PKG_BUILDDIR"
termux_step_make_install
cd "$TERMUX_PKG_BUILDDIR"
termux_step_post_make_install
cd "$TERMUX_PKG_MASSAGEDIR"
termux_step_extract_into_massagedir
cd "$TERMUX_PKG_MASSAGEDIR"
termux_step_massage
cd "$TERMUX_PKG_MASSAGEDIR/$TERMUX_PREFIX"
termux_step_post_massage
termux_step_create_datatar
termux_step_create_debfile
termux_step_finish_build
} 5< "$TERMUX_BUILD_LOCK_FILE"

5
scripts/build/termux_step_handle_arguments.sh
View File

@ -36,8 +36,9 @@ termux_step_handle_arguments() {
# Handle 'all' arch:
if [ -n "${TERMUX_ARCH+x}" ] && [ "${TERMUX_ARCH}" = 'all' ]; then
for arch in 'aarch64' 'arm' 'i686' 'x86_64'; do
./build-package.sh ${TERMUX_FORCE_BUILD+-f} -a $arch ${TERMUX_INSTALL_DEPS+-i} \
${TERMUX_DEBUG+-d} ${TERMUX_DEBDIR+-o $TERMUX_DEBDIR} "$1"
TERMUX_BUILD_IGNORE_LOCK=true ./build-package.sh ${TERMUX_FORCE_BUILD+-f} \
-a $arch ${TERMUX_INSTALL_DEPS+-i} ${TERMUX_DEBUG+-d} \
${TERMUX_DEBDIR+-o $TERMUX_DEBDIR} "$1"
done
exit
fi

4
scripts/build/termux_step_start_build.sh
View File

@ -31,7 +31,7 @@ termux_step_start_build() {
fi
if ! termux_download_deb $PKG $DEP_ARCH $DEP_VERSION; then
echo "Download of $PKG@$DEP_VERSION from $TERMUX_REPO_URL failed, building instead"
./build-package.sh -a $TERMUX_ARCH -I "${PKG_DIR}"
TERMUX_BUILD_IGNORE_LOCK=true ./build-package.sh -a $TERMUX_ARCH -I "${PKG_DIR}"
continue
else
if [ ! "$TERMUX_QUIET_BUILD" = true ]; then echo "extracting $PKG..."; fi
@ -64,7 +64,7 @@ termux_step_start_build() {
fi
echo "Building dependency $PKG if necessary..."
# Built dependencies are put in the default TERMUX_DEBDIR instead of the specified one
./build-package.sh -a $TERMUX_ARCH -s "${PKG_DIR}"
TERMUX_BUILD_IGNORE_LOCK=true ./build-package.sh -a $TERMUX_ARCH -s "${PKG_DIR}"
done<<<$(./scripts/buildorder.py "$TERMUX_PKG_BUILDER_DIR" $TERMUX_PACKAGES_DIRECTORIES || echo "ERROR")
fi