190 lines
9.3 KiB
Nix
190 lines
9.3 KiB
Nix
{lib, stdenv, fetchFromGitHub, fuse, bison, flex_2_5_35, openssl, python3, ncurses, readline,
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autoconf, automake, libtool, pkg-config, zlib, libaio, libxml2, acl, sqlite,
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liburcu, attr, makeWrapper, coreutils, gnused, gnugrep, which,
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openssh, gawk, findutils, util-linux, lvm2, btrfs-progs, e2fsprogs, xfsprogs, systemd,
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rsync, glibc, rpcsvc-proto, libtirpc
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}:
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let
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# NOTE: On each glusterfs release, it should be checked if gluster added
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# new, or changed, Python scripts whose PYTHONPATH has to be set in
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# `postFixup` below, and whose runtime deps need to go into
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# `nativeBuildInputs`.
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# The command
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# find /nix/store/...-glusterfs-.../ -name '*.py' -executable
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# can help with finding new Python scripts.
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buildInputs = [
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fuse bison flex_2_5_35 openssl ncurses readline
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autoconf automake libtool pkg-config zlib libaio libxml2
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acl sqlite liburcu attr makeWrapper util-linux libtirpc
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(python3.withPackages (pkgs: [
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pkgs.flask
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pkgs.prettytable
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pkgs.requests
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pkgs.pyxattr
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]))
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# NOTE: `python3` has to be *AFTER* the above `python3.withPackages`,
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# to ensure that the packages are available but the `toPythonPath`
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# shell function used in `postFixup` is also still available.
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python3
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];
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# Some of the headers reference acl
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propagatedBuildInputs = [
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acl
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];
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# Packages from which GlusterFS calls binaries at run-time from PATH,
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# with comments on which commands are known to be called by it.
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runtimePATHdeps = [
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attr # getfattr setfattr
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btrfs-progs # btrfs
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coreutils # lots of commands in bash scripts
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e2fsprogs # tune2fs
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findutils # find
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gawk # awk
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glibc # getent
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gnugrep # grep
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gnused # sed
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lvm2 # lvs
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openssh # ssh
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rsync # rsync, e.g. for geo-replication
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systemd # systemctl
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util-linux # mount umount
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which # which
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xfsprogs # xfs_info
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];
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in stdenv.mkDerivation rec {
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pname = "glusterfs";
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version = "9.0";
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src = fetchFromGitHub {
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owner = "gluster";
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repo = pname;
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rev = "v${version}";
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sha256 = "sha256-pjJQAFEb44yNqvNAOclZsiEDZBgcfIxliD3La1IsKPs=";
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};
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inherit buildInputs propagatedBuildInputs;
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postPatch = ''
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sed -e '/chmod u+s/d' -i contrib/fuse-util/Makefile.am
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substituteInPlace libglusterfs/src/glusterfs/lvm-defaults.h \
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--replace '/sbin/' '${lvm2}/bin/'
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substituteInPlace libglusterfs/src/glusterfs/compat.h \
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--replace '/bin/umount' '${util-linux}/bin/umount'
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substituteInPlace contrib/fuse-lib/mount-gluster-compat.h \
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--replace '/bin/mount' '${util-linux}/bin/mount'
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'';
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# Note that the VERSION file is something that is present in release tarballs
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# but not in git tags (at least not as of writing in v3.10.1).
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# That's why we have to create it.
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# Without this, gluster (at least 3.10.1) will fail very late and cryptically,
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# for example when setting up geo-replication, with a message like
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# Staging of operation 'Volume Geo-replication Create' failed on localhost : Unable to fetch master volume details. Please check the master cluster and master volume.
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# What happens here is that the gverify.sh script tries to compare the versions,
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# but fails when the version is empty.
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# See upstream GlusterFS bug https://bugzilla.redhat.com/show_bug.cgi?id=1452705
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preConfigure = ''
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echo "v${version}" > VERSION
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./autogen.sh
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export PYTHON=${python3}/bin/python
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'';
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configureFlags = [
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"--localstatedir=/var"
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];
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nativeBuildInputs = [ rpcsvc-proto ];
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makeFlags = [ "DESTDIR=$(out)" ];
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enableParallelBuilding = true;
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postInstall = ''
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cp -r $out/$out/* $out
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rm -r $out/nix
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'';
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postFixup = ''
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# glusterd invokes `gluster` and other utilities when telling other glusterd nodes to run commands.
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# For example for `peer_georep-sshkey` key generation, so `$out/bin` is needed in the PATH.
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# It also invokes bash scripts like `gverify.sh`.
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# It also invokes executable Python scripts in `$out/libexec/glusterfs`, which is why we set up PYTHONPATH accordingly.
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# We set up the paths for the main entry point executables.
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GLUSTER_PATH="${lib.makeBinPath runtimePATHdeps}:$out/bin"
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GLUSTER_PYTHONPATH="$(toPythonPath $out):$out/libexec/glusterfs"
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GLUSTER_LD_LIBRARY_PATH="$out/lib"
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wrapProgram $out/bin/glusterd --set PATH "$GLUSTER_PATH" --set PYTHONPATH "$GLUSTER_PYTHONPATH" --set LD_LIBRARY_PATH "$GLUSTER_LD_LIBRARY_PATH"
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wrapProgram $out/bin/gluster --set PATH "$GLUSTER_PATH" --set PYTHONPATH "$GLUSTER_PYTHONPATH" --set LD_LIBRARY_PATH "$GLUSTER_LD_LIBRARY_PATH"
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wrapProgram $out/sbin/mount.glusterfs --set PATH "$GLUSTER_PATH" --set PYTHONPATH "$GLUSTER_PYTHONPATH" --set LD_LIBRARY_PATH "$GLUSTER_LD_LIBRARY_PATH"
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# Set Python environment for the Python based utilities.
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# It would be nice if there was a better way to do this, automatically for all of them.
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# Also, this is brittle: If we forget a dependency or gluster adds a new one, things will break deep inside gluster.
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# We should better try to get an explicit list of Python dependencies from gluster and ensure all of them are in the PYTHONPATH of all these python scripts.
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# But at the time of writing (gluster 3.10), gluster only provides this in form of a gluster.spec file for RPM creation,
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# and even that one is not complete (for example it doesn't mention the `flask` dependency).
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wrapProgram $out/bin/gluster-eventsapi --set PATH "$GLUSTER_PATH" --set PYTHONPATH "$GLUSTER_PYTHONPATH" --set LD_LIBRARY_PATH "$GLUSTER_LD_LIBRARY_PATH"
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wrapProgram $out/bin/gluster-georep-sshkey --set PATH "$GLUSTER_PATH" --set PYTHONPATH "$GLUSTER_PYTHONPATH" --set LD_LIBRARY_PATH "$GLUSTER_LD_LIBRARY_PATH"
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wrapProgram $out/bin/gluster-mountbroker --set PATH "$GLUSTER_PATH" --set PYTHONPATH "$GLUSTER_PYTHONPATH" --set LD_LIBRARY_PATH "$GLUSTER_LD_LIBRARY_PATH"
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wrapProgram $out/bin/glusterfind --set PATH "$GLUSTER_PATH" --set PYTHONPATH "$GLUSTER_PYTHONPATH" --set LD_LIBRARY_PATH "$GLUSTER_LD_LIBRARY_PATH"
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# Note that we only wrap the symlinks in $out/bin, not the actual executable scripts in $out/libexec/glusterfs.
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# This is because those scripts use `__file__` in their program logic
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# (see https://github.com/gluster/glusterfs/blob/v3.10.1/extras/cliutils/cliutils.py#L116)
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# which would break if we changed the file name (which is what `wrapProgram` does).
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# Luckily, `libexec` scripts are never supposed to be invoked straight from PATH,
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# instead they are invoked directly from `gluster` or `glusterd`, which is why it is
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# sufficient to set PYTHONPATH for those executables.
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#
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# Exceptions to these rules are the `glusterfind` `brickfind.py` and `changelog.py`
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# crawlers, which are directly invoked on other gluster nodes using a remote SSH command
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# issues by `glusterfind`.
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wrapProgram $out/share/glusterfs/scripts/eventsdash.py --set PATH "$GLUSTER_PATH" --set PYTHONPATH "$GLUSTER_PYTHONPATH" --set LD_LIBRARY_PATH "$GLUSTER_LD_LIBRARY_PATH"
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wrapProgram $out/libexec/glusterfs/glusterfind/brickfind.py --set PATH "$GLUSTER_PATH" --set PYTHONPATH "$GLUSTER_PYTHONPATH" --set LD_LIBRARY_PATH "$GLUSTER_LD_LIBRARY_PATH"
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wrapProgram $out/libexec/glusterfs/glusterfind/changelog.py --set PATH "$GLUSTER_PATH" --set PYTHONPATH "$GLUSTER_PYTHONPATH" --set LD_LIBRARY_PATH "$GLUSTER_LD_LIBRARY_PATH"
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'';
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doInstallCheck = true;
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# Below we run Python programs. That generates .pyc/.pyo files.
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# By default they are indeterministic because such files contain time stamps
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# (see https://nedbatchelder.com/blog/200804/the_structure_of_pyc_files.html).
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# So we use the same environment variables as in
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# https://github.com/NixOS/nixpkgs/blob/249b34aadca7038207492f29142a3456d0cecec3/pkgs/development/interpreters/python/mk-python-derivation.nix#L61
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# to make these files deterministic.
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# A general solution to this problem might be brought by #25707.
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DETERMINISTIC_BUILD = 1;
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PYTHONHASHSEED = 0;
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installCheckPhase = ''
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# Tests that the above programs work without import errors.
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# For testing it manually in a shell you may want to substitute `$out` with `$(dirname $(readlink -f $(which gluster)))/../`.
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$out/bin/glusterd --help
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# $out/bin/gluster help # can't do this because even `gluster help` tries to write to `/var/log/glusterfs/cli.log`
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$out/bin/gluster-eventsapi --help
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$out/bin/gluster-georep-sshkey --help
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$out/bin/gluster-mountbroker --help
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$out/bin/glusterfind --help
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# gfid_to_path.py doesn't accept --help, and it requires different arguments
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# (a dir as single argument) than the usage prints when stdin is not a TTY.
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# The `echo ""` is just so that stdin is not a TTY even if you try this line
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# on a real TTY for testing purposes.
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echo "" | (mkdir -p nix-test-dir-for-gfid_to_path && touch b && $out/libexec/glusterfs/gfind_missing_files/gfid_to_path.py nix-test-dir-for-gfid_to_path)
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$out/share/glusterfs/scripts/eventsdash.py --help
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# this gets falsely loaded as module by glusterfind
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rm -r $out/bin/conf.py
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'';
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meta = with lib; {
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description = "Distributed storage system";
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homepage = "https://www.gluster.org";
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license = licenses.lgpl3Plus; # dual licese: choice of lgpl3Plus or gpl2
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maintainers = [ maintainers.raskin ];
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platforms = with platforms; linux ++ freebsd;
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};
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}
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