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Make the json.tar.xz release archive configure standalone

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The json.tar.xz rule packed neither src/modules nor tests, but the
top-level CMakeLists.txt needs src/modules for
NLOHMANN_JSON_BUILD_MODULES=ON and defaulted JSON_BuildTests to ON for
a main project. A standalone configure of the extracted archive failed
at add_subdirectory(tests), and enabling the module failed at
add_subdirectory(src/modules).

Add src/modules to the archive, and default JSON_BuildTests to ON only
if tests/CMakeLists.txt exists, so a repository checkout still builds
the tests by default while the archive configures out of the box. Use
GNU tar via a TAR variable (gtar if present, else tar), the same way
SED is found, instead of hard-coding gtar. The library, its public API,
and its ABI are unchanged.

Part of #5716

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann
2026-09-30 09:40:26 +02:00
parent 633de8e44b
commit 85fec73da7
3 changed files with 10 additions and 4 deletions
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Makefile
+5 -2
View File
@@ -7,6 +7,9 @@
# find GNU sed to use `-i` parameter
SED:=$(shell command -v gsed || which sed)
# find GNU tar to use `--sort` and `--pax-option` parameters
TAR:=$(shell command -v gtar || which tar)
##########################################################################
# source files
@@ -215,8 +218,8 @@ ChangeLog.md:
# archive is created according to the advices of <https://reproducible-builds.org/docs/archives/>.
json.tar.xz:
mkdir json
rsync -R $(shell find LICENSE.MIT nlohmann_json.natvis CMakeLists.txt cmake/*.in include single_include -type f) json
gtar --sort=name --mtime="@$(shell git log -1 --pretty=%ct)" --owner=0 --group=0 --numeric-owner --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime --create --file - json | xz --compress -9e --threads=2 - > json.tar.xz
rsync -R $(shell find LICENSE.MIT nlohmann_json.natvis CMakeLists.txt cmake/*.in include single_include src/modules -type f) json
$(TAR) --sort=name --mtime="@$(shell git log -1 --pretty=%ct)" --owner=0 --group=0 --numeric-owner --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime --create --file - json | xz --compress -9e --threads=2 - > json.tar.xz
rm -fr json
# We use `-X` to make the resulting ZIP file reproducible, see