nixpkgs/pkgs/tools/misc/man-db/default.nix
rnhmjoj dfff485819
man-db: remove NixOS-specific configuration
When using --with-config-file, all man-db programs completely ignore the
systemwide configuration in /etc/man_db.conf: it means on NixOS there is
no way to change the configuration without rebuilding man-db, which in
turn causes a mass-rebuild.

To solve this problem this commit removes the NixOS-specific
configuration in man-db, which wasn't the appropriate place to begin
with: the package is expected to work on non-NixOS systems as well. Also
a small patch now ensure /etc/man_db.conf is used, if available, before
the bundled configuration.
2020-06-18 10:17:03 +02:00

82 lines
2.9 KiB
Nix

{ stdenv, fetchurl, pkgconfig, libpipeline, db, groff, libiconv, makeWrapper, buildPackages }:
stdenv.mkDerivation rec {
name = "man-db-2.9.2";
src = fetchurl {
url = "mirror://savannah/man-db/${name}.tar.xz";
sha256 = "0z04kwv5ymmd0pzadpaag696jfckg6rbz8x4jrgj09bmqqk3yf3v";
};
outputs = [ "out" "doc" ];
outputMan = "out"; # users will want `man man` to work
nativeBuildInputs = [ pkgconfig makeWrapper groff ];
buildInputs = [ libpipeline db groff ]; # (Yes, 'groff' is both native and build input)
checkInputs = [ libiconv /* for 'iconv' binary */ ];
patches = [ ./systemwide-man-db-conf.patch ];
postPatch = ''
# Remove all mandatory manpaths. Nixpkgs makes no requirements on
# these directories existing.
sed -i 's/^MANDATORY_MANPATH/# &/' src/man_db.conf.in
# Add Nix-related manpaths
echo "MANPATH_MAP /nix/var/nix/profiles/default/bin /nix/var/nix/profiles/default/share/man" >> src/man_db.conf.in
# Add mandb locations for the above
echo "MANDB_MAP /nix/var/nix/profiles/default/share/man /var/cache/man/nixpkgs" >> src/man_db.conf.in
'';
configureFlags = [
"--disable-setuid"
"--disable-cache-owner"
"--localstatedir=/var"
"--with-config-file=${placeholder "out"}/etc/man_db.conf"
"--with-systemdtmpfilesdir=${placeholder "out"}/lib/tmpfiles.d"
"--with-systemdsystemunitdir=${placeholder "out"}/lib/systemd/system"
"--with-pager=less"
] ++ stdenv.lib.optional stdenv.hostPlatform.isDarwin [
"ac_cv_func__set_invalid_parameter_handler=no"
"ac_cv_func_posix_fadvise=no"
"ac_cv_func_mempcpy=no"
];
preConfigure = ''
configureFlagsArray+=("--with-sections=1 n l 8 3 0 2 5 4 9 6 7")
'';
postInstall = ''
# apropos/whatis uses program name to decide whether to act like apropos or whatis
# (multi-call binary). `apropos` is actually just a symlink to whatis. So we need to
# make sure that we don't wrap symlinks (since that changes argv[0] to the -wrapped name)
find "$out/bin" -type f | while read file; do
wrapProgram "$file" --prefix PATH : "${groff}/bin"
done
'';
postFixup = stdenv.lib.optionalString (buildPackages.groff != groff) ''
# Check to make sure none of the outputs depend on build-time-only groff:
for outName in $outputs; do
out=''${!outName}
echo "Checking $outName(=$out) for references to build-time groff..."
if grep -r '${buildPackages.groff}' $out; then
echo "Found an erroneous dependency on groff ^^^" >&2
exit 1
fi
done
'';
enableParallelBuilding = true;
doCheck = !stdenv.hostPlatform.isMusl /* iconv binary */ && !stdenv.hostPlatform.isDarwin;
meta = with stdenv.lib; {
homepage = "http://man-db.nongnu.org";
description = "An implementation of the standard Unix documentation system accessed using the man command";
license = licenses.gpl2;
platforms = stdenv.lib.platforms.unix;
};
}