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Diffstat (limited to 'meta/classes/reproducible_build.bbclass')
| -rw-r--r-- | meta/classes/reproducible_build.bbclass | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/meta/classes/reproducible_build.bbclass b/meta/classes/reproducible_build.bbclass deleted file mode 100644 index f38be1a765..0000000000 --- a/meta/classes/reproducible_build.bbclass +++ /dev/null @@ -1,96 +0,0 @@ -# reproducible_build.bbclass -# -# Sets the default SOURCE_DATE_EPOCH in each component's build environment. -# The format is number of seconds since the system epoch. -# -# Upstream components (generally) respect this environment variable, -# using it in place of the "current" date and time. -# See https://reproducible-builds.org/specs/source-date-epoch/ -# -# The default value of SOURCE_DATE_EPOCH comes from the function -# get_source_date_epoch_value which reads from the SDE_FILE, or if the file -# is not available (or set to 0) will use the fallback of -# SOURCE_DATE_EPOCH_FALLBACK. -# -# The SDE_FILE is normally constructed from the function -# create_source_date_epoch_stamp which is typically added as a postfuncs to -# the do_unpack task. If a recipe does NOT have do_unpack, it should be added -# to a task that runs after the source is available and before the -# do_deploy_source_date_epoch task is executed. -# -# If a recipe wishes to override the default behavior it should set it's own -# SOURCE_DATE_EPOCH or override the do_deploy_source_date_epoch_stamp task -# with recipe-specific functionality to write the appropriate -# SOURCE_DATE_EPOCH into the SDE_FILE. -# -# SOURCE_DATE_EPOCH is intended to be a reproducible value. This value should -# be reproducible for anyone who builds the same revision from the same -# sources. -# -# There are 4 ways the create_source_date_epoch_stamp function determines what -# becomes SOURCE_DATE_EPOCH: -# -# 1. Use the value from __source_date_epoch.txt file if this file exists. -# This file was most likely created in the previous build by one of the -# following methods 2,3,4. -# Alternatively, it can be provided by a recipe via SRC_URI. -# -# If the file does not exist: -# -# 2. If there is a git checkout, use the last git commit timestamp. -# Git does not preserve file timestamps on checkout. -# -# 3. Use the mtime of "known" files such as NEWS, CHANGLELOG, ... -# This works for well-kept repositories distributed via tarball. -# -# 4. Use the modification time of the youngest file in the source tree, if -# there is one. -# This will be the newest file from the distribution tarball, if any. -# -# 5. Fall back to a fixed timestamp (SOURCE_DATE_EPOCH_FALLBACK). -# -# Once the value is determined, it is stored in the recipe's SDE_FILE. - - -SSTATETASKS += "do_deploy_source_date_epoch" - -do_deploy_source_date_epoch () { - mkdir -p ${SDE_DEPLOYDIR} - if [ -e ${SDE_FILE} ]; then - echo "Deploying SDE from ${SDE_FILE} -> ${SDE_DEPLOYDIR}." - cp -p ${SDE_FILE} ${SDE_DEPLOYDIR}/__source_date_epoch.txt - else - echo "${SDE_FILE} not found!" - fi -} - -python do_deploy_source_date_epoch_setscene () { - sstate_setscene(d) - bb.utils.mkdirhier(d.getVar('SDE_DIR')) - sde_file = os.path.join(d.getVar('SDE_DEPLOYDIR'), '__source_date_epoch.txt') - if os.path.exists(sde_file): - target = d.getVar('SDE_FILE') - bb.debug(1, "Moving setscene SDE file %s -> %s" % (sde_file, target)) - bb.utils.rename(sde_file, target) - else: - bb.debug(1, "%s not found!" % sde_file) -} - -do_deploy_source_date_epoch[dirs] = "${SDE_DEPLOYDIR}" -do_deploy_source_date_epoch[sstate-plaindirs] = "${SDE_DEPLOYDIR}" -addtask do_deploy_source_date_epoch_setscene -addtask do_deploy_source_date_epoch before do_configure after do_patch - -python create_source_date_epoch_stamp() { - source_date_epoch = oe.reproducible.get_source_date_epoch(d, d.getVar('S')) - oe.reproducible.epochfile_write(source_date_epoch, d.getVar('SDE_FILE'), d) -} - -EPOCHTASK = "do_deploy_source_date_epoch" - -# Generate the stamp after do_unpack runs -do_unpack[postfuncs] += "create_source_date_epoch_stamp" - -def get_source_date_epoch_value(d): - return oe.reproducible.epochfile_read(d.getVar('SDE_FILE'), d) - |