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nixpkgs/pkgs/applications/science/math/sage/sage-src.nix
2019-08-18 21:52:27 +02:00

123 lines
5 KiB
Nix

{ stdenv
, fetchFromGitHub
, fetchpatch
, runtimeShell
}:
# 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 = "8.9.beta6";
pname = "sage-src";
src = fetchFromGitHub {
owner = "sagemath";
repo = "sage";
rev = version;
sha256 = "0zk3wb9nlb6mrspgabiqdh3rjmcj3y70fg02dmpvhjssdblpkiqi";
};
# 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 = [
# https://trac.sagemath.org/ticket/25358
(fetchpatch {
name = "safe-directory-test-without-patch.patch";
url = "https://git.sagemath.org/sage.git/patch?id2=8bdc326ba57d1bb9664f63cf165a9e9920cc1afc&id=dc673c17555efca611f68398d5013b66e9825463";
sha256 = "1hhannz7xzprijakn2w2d0rhd5zv2zikik9p51i87bas3nc658f7";
})
# Unfortunately inclusion in upstream sage was rejected. Instead the bug was
# fixed in python, but of course not backported to 2.7. So we'll probably
# have to keep this around until 2.7 is deprecated.
# https://trac.sagemath.org/ticket/25316
# https://github.com/python/cpython/pull/7476
./patches/python-5755-hotpatch.patch
# Make sure py2/py3 tests are only run when their expected context (all "sage"
# tests) are also run. That is necessary to test dochtml individually. See
# https://trac.sagemath.org/ticket/26110 for an upstream discussion.
./patches/Only-test-py2-py3-optional-tests-when-all-of-sage-is.patch
# Fixes a potential race condition which can lead to transient doctest failures.
./patches/fix-ecl-race.patch
# Not necessary since library location is set explicitly
# https://trac.sagemath.org/ticket/27660#ticket
./patches/do-not-test-find-library.patch
# Parallelize docubuild using subprocesses, fixing an isolation issue. See
# https://groups.google.com/forum/#!topic/sage-packaging/YGOm8tkADrE
./patches/sphinx-docbuild-subprocesses.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 = [ ];
# 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 = let
# Fetch a diff between `base` and `rev` on sage's git server.
# Used to fetch trac tickets by setting the `base` to the last release and the
# `rev` to the last commit of the ticket.
fetchSageDiff = { base, rev, name ? "sage-diff-${base}-${rev}.patch", ...}@args: (
fetchpatch ({
inherit name;
url = "https://git.sagemath.org/sage.git/patch?id2=${base}&id=${rev}";
# We don't care about sage's own build system (which builds all its dependencies).
# Exclude build system changes to avoid conflicts.
excludes = [ "build/*" ];
} // builtins.removeAttrs args [ "rev" "base" ])
);
in [
# New glpk version has new warnings, filter those out until upstream sage has found a solution
# Should be fixed with glpk > 4.65.
# https://trac.sagemath.org/ticket/24824
./patches/pari-stackwarn.patch # not actually necessary since the pari upgrade, but necessary for the glpk patch to apply
(fetchpatch {
url = "https://salsa.debian.org/science-team/sagemath/raw/58bbba93a807ca2933ca317501d093a1bb4b84db/debian/patches/dt-version-glpk-4.65-ignore-warnings.patch";
sha256 = "0b9293v73wb4x13wv5zwyjgclc01zn16msccfzzi6znswklgvddp";
stripLen = 1;
})
];
patches = nixPatches ++ bugfixPatches ++ packageUpgradePatches;
postPatch = ''
# make sure shebangs etc are fixed, but sage-python23 still works
find . -type f -exec sed \
-e 's/sage-python23/python/g' \
-i {} \;
echo '#!${runtimeShell}
python "$@"' > build/bin/sage-python23
# Make sure sage can at least be imported without setting any environment
# variables. It won't be close to feature complete though.
sed -i \
"s|var('SAGE_LOCAL',.*|var('SAGE_LOCAL', '$out/src')|" \
src/sage/env.py
# Do not use sage-env-config (generated by ./configure).
# Instead variables are set manually.
echo '# do nothing' > src/bin/sage-env-config
'';
configurePhase = "# do nothing";
buildPhase = "# do nothing";
installPhase = ''
cp -r . "$out"
'';
}