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Paul Spooren e36c2946b7 build: derive PKG_SOURCE_DATE_EPOCH from the unpacked source tree 
Previously PKG_SOURCE_DATE_EPOCH came from a git log on the OpenWrt
package directory. That fails in shallow feed clones and in the SDK
(no .git), collapsing to the script's mtime and breaking .apk
reproducibility across SDK rebuilds and between buildbot and SDK.

With this comment, PKG_UNPACK generates a version.date file, later used to
determine a reproducible SOURCE_DATE_EPOCH. Since unpack happens after
download, the evaluation of SOURCE_DATE_EPOCH is now lazy, invoking the
`get_source_date_epoch.sh` script on every use.

While at it, drop export of PKG_SOURCE_DATE_EPOCH and clean it from the
ipkg-build script.

Link: https://github.com/openwrt/openwrt/issues/21579
Link: https://github.com/openwrt/openwrt/pull/21587

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Link: https://github.com/openwrt/openwrt/pull/23576
Signed-off-by: Paul Spooren <mail@aparcar.org>
2026-06-02 11:51:00 +02:00
..
site build: remove ac_cv_header_netinet_sctp_h=no from pre-cached variables 2024-09-22 16:04:09 +02:00
autotools.mk include: autotools: do not symlink files in autoreconf 2024-08-29 20:04:02 +02:00
bpf.mk build: bpf: fix LLVM tool paths with host toolchain 2025-04-09 09:52:21 +02:00
cmake.mk build: pass CPPFLAGS to cmake build 2026-02-17 01:29:57 +01:00
debug.mk build: use SPDX license tags 2021-02-05 14:54:47 +01:00
default-packages.mk imagebuilder: move handling of DEFAULT_PACKAGES into shareable place 2024-11-17 19:29:06 +01:00
depends.mk build: make find_md5 reproducible with AUTOREMOVE 2022-09-30 22:26:51 +02:00
device_table.txt
download.mk treewide: drop CVS support 2026-02-13 15:40:13 +01:00
feeds.mk build: fix apk_package_files wildcard for packages without ABI version 2026-05-22 14:54:34 +02:00
hardened-ld-pie.specs build: add hardened builds with PIE (ASLR) support 2018-01-27 16:46:45 +01:00
hardening.mk toolchain: gcc: add fanalyzer config option 2025-11-23 09:33:15 +01:00
host-build.mk build: add support for host building in a subdirectory 2024-07-27 20:32:20 +02:00
image-commands.mk filogic: add support for D-Link AQUILA PRO AI E30 2026-04-13 01:52:29 +02:00
image.mk image: fix per device targz rootfs wrong suffix and redundant images 2026-05-29 13:10:23 +02:00
kernel-build.mk kernel-build.mk: Fix multi-core build warning. 2024-10-06 13:49:39 +02:00
kernel-defaults.mk kernel: fix lz4 initramfs creation 2026-05-07 18:14:58 +02:00
kernel-version.mk kernel: move kernel version files to linux/generic directory 2025-04-22 19:22:44 +02:00
kernel.mk treewide: remove unused archs leftovers 2026-05-07 10:58:47 +02:00
logo.png include: update logo with better kerning 2021-01-18 09:31:39 -10:00
logo.svg include: update logo with better kerning 2021-01-18 09:31:39 -10:00
meson.mk meson: allow using staging python 2024-12-02 19:30:22 +00:00
netfilter.mk netfilter: remove nf-conntrack6 2026-01-21 22:42:20 +01:00
nls.mk nls.mk: fixup cmake packages 2022-11-27 00:52:06 +01:00
openssl-module.mk openssl: add MODULES_DIR MACRO for provider 2025-11-11 23:58:54 +01:00
optee-os.mk optee-os.mk: override default PATH to not use hostpkg python 2025-03-15 13:43:14 +01:00
package-bin.mk build: allow package to be built for all variants 2021-11-15 00:38:46 +01:00
package-defaults.mk build: derive PKG_SOURCE_DATE_EPOCH from the unpacked source tree 2026-06-02 11:51:00 +02:00
package-dumpinfo.mk build: remove duplicate MAINTAINER from package-dumpinfo.mk 2024-05-07 22:24:10 +02:00
package-pack.mk build: derive PKG_SOURCE_DATE_EPOCH from the unpacked source tree 2026-06-02 11:51:00 +02:00
package-seccomp.mk build: use SPDX license tags 2021-02-05 14:54:47 +01:00
package.mk build: derive PKG_SOURCE_DATE_EPOCH from the unpacked source tree 2026-06-02 11:51:00 +02:00
prereq-build.mk prereq-build: add Python 3.13 support 2025-11-12 12:11:15 +01:00
prereq.mk prereq: use staging_dir's compiler 2025-10-20 00:55:06 +02:00
quilt.mk kernel: move .quilt_used to quilt.mk 2025-11-27 20:26:37 +01:00
rootfs.mk treewide: drop CVS support 2026-02-13 15:40:13 +01:00
scan.awk build: propagate override information to .packageinfo 2015-02-09 12:09:31 +00:00
scan.mk scan.mk: do not silence output of dump phase 2023-11-13 14:01:24 +01:00
shell.sh build: use mkhash to replace various quirky md5sum/openssl calls 2017-01-05 11:09:12 +01:00
subdir.mk kernel-build.mk: add support for compiling only DTS 2024-02-08 19:57:28 +01:00
target.mk treewide: remove unused archs leftovers 2026-05-07 10:58:47 +02:00
toolchain-build.mk toolchain: fix dangling symlink to self in FixupLibdir 2022-07-01 19:17:36 +02:00
toplevel.mk build: depend on tools/zstd for download 2025-12-10 19:04:44 +01:00
trusted-firmware-a.mk include/trusted-firmware-a.mk: support LTS releases 2025-04-06 14:21:07 +03:00
u-boot.mk treewide: update u-boot URL 2026-01-02 18:07:02 +01:00
uclibc++.mk uclibc++: remove 2021-10-24 18:20:50 +02:00
unpack.mk include: use libdeflate's gzip to decompress 2023-01-17 21:40:18 +01:00
verbose.mk verbose.mk: fallback to standard file descriptors 2024-01-05 16:25:14 +01:00
version.mk build: lock versions for special APK packages 2025-02-04 13:48:59 +00:00