nixpkgs/pkgs/by-name/sa/sage/sage-src.nix
2025-07-24 13:55:40 +02:00

118 lines
4.5 KiB
Nix

{
stdenv,
lib,
fetchFromGitHub,
fetchpatch,
fetchpatch2,
fetchurl,
}:
# This file is responsible for fetching the sage source and adding necessary patches.
# It does not actually build anything, it just copies the patched sources to $out.
# This is done because multiple derivations rely on these sources and they should
# all get the same sources with the same patches applied.
stdenv.mkDerivation rec {
version = "10.6";
pname = "sage-src";
src = fetchFromGitHub {
owner = "sagemath";
repo = "sage";
rev = version;
hash = "sha256-ZDYFq2lJXjnADFdX6y7sskaF0rkT5EIcdN8/bs00TlQ=";
};
# contains essential files (e.g., setup.cfg) generated by the bootstrap script.
# TODO: investigate https://github.com/sagemath/sage/pull/35950
configure-src = fetchurl {
# the hash below is the tagged commit's _parent_. it can also be found by looking for
# the "configure" asset at https://github.com/sagemath/sage/releases/tag/${version}
url = "mirror://sageupstream/configure/configure-10741006a4794b7db82942db55b97033d5905431.tar.gz";
hash = "sha256-7LqY+vwBlyukDfcRtuR99vpC3hcBo8WRUuJjiFFq9xk=";
};
# Patches needed because of particularities of nix or the way this is packaged.
# The goal is to upstream all of them and get rid of this list.
nixPatches = [
# Parallelize docubuild using subprocesses, fixing an isolation issue. See
# https://groups.google.com/forum/#!topic/sage-packaging/YGOm8tkADrE
./patches/sphinx-docbuild-subprocesses.patch
# After updating smypow to (https://github.com/sagemath/sage/issues/3360)
# we can now set the cache dir to be within the .sage directory. This is
# not strictly necessary, but keeps us from littering in the user's HOME.
./patches/sympow-cache.patch
]
++ lib.optionals (stdenv.cc.isClang) [
# https://github.com/NixOS/nixpkgs/pull/264126
# Dead links in python sysconfig cause LLVM linker warnings, leading to cython doctest failures.
./patches/silence-linker.patch
# Stack overflows during doctests; this does not change functionality.
./patches/disable-singular-doctest.patch
];
# Since sage unfortunately does not release bugfix releases, packagers must
# fix those bugs themselves. This is for critical bugfixes, where "critical"
# == "causes (transient) doctest failures / somebody complained".
bugfixPatches = [
# compile libs/gap/element.pyx with -O1
# a more conservative version of https://github.com/sagemath/sage/pull/37951
./patches/gap-element-crash.patch
];
# Patches needed because of package updates. We could just pin the versions of
# dependencies, but that would lead to rebuilds, confusion and the burdons of
# maintaining multiple versions of dependencies. Instead we try to make sage
# compatible with never dependency versions when possible. All these changes
# should come from or be proposed to upstream. This list will probably never
# be empty since dependencies update all the time.
packageUpgradePatches = [
# https://github.com/sagemath/sage/pull/39737, positively reviewed
(fetchpatch {
name = "sphinx-8.2-update.patch";
url = "https://github.com/sagemath/sage/pull/39737/commits/4e485497fb5e20a056ffd2178360b88f482447d8.patch";
hash = "sha256-oIcFeol0SW5dE/iE6mbYyas3kXIjOwsG1k+h99R94x8=";
})
# https://github.com/sagemath/sage/pull/40285, landed in 10.7.beta7
(fetchpatch2 {
name = "scipy-1.16-update.patch";
url = "https://github.com/sagemath/sage/commit/d0cbe9d353722580f98a327694f1a361c9b83ccd.patch?full_index=1";
hash = "sha256-uV2nttxCKDsNqMf1O+lUmuoiDrx7/CfiS00JBb9kiM8=";
})
];
patches = nixPatches ++ bugfixPatches ++ packageUpgradePatches;
# do not create .orig backup files if patch applies with fuzz
patchFlags = [
"--no-backup-if-mismatch"
"-p1"
];
# harmless broken symlinks to (not) generated files used by sage-the-distro
dontCheckForBrokenSymlinks = true;
postPatch = ''
# Make sure sage can at least be imported without setting any environment
# variables. It won't be close to feature complete though.
sed -i \
"s|var(\"SAGE_ROOT\".*|var(\"SAGE_ROOT\", \"$out\")|" \
src/sage/env.py
# sage --docbuild unsets JUPYTER_PATH, which breaks our docbuilding
# https://trac.sagemath.org/ticket/33650#comment:32
sed -i "/export JUPYTER_PATH/d" src/bin/sage
'';
buildPhase = "# do nothing";
installPhase = ''
cp -r . "$out"
tar xzf ${configure-src} -C "$out"
rm "$out/configure"
'';
}