e2fsprogs: build fuse2fs and add output for fuse2fs

it adds 14mb of dependencies
which can be significant for initrd

without a separate output
$ du -sch $(nix-store -qR ./result-bin) | sort -h

before fuse dep

618K	/nix/store/w2id1hwv4vv7hvp4slgsyrydrjbfqdxc-libidn2-2.3.2
698K	/nix/store/ki0x4wywp5b7rixwk1miq222wybdl3si-e2fsprogs-1.46.5-bin
732K	/nix/store/4nmqxajzaf60yjribkgvj5j54x9yvr1r-bash-5.1-p12
747K	/nix/store/8ckxc8biqqfdwyhr0w70jgrcb4h7a4y5-libunistring-0.9.10
853K	/nix/store/kx41yd3yyr9bwrsk85fhhx6qhavfwql6-util-linux-2.37.3-lib
2,3M	/nix/store/7nkr1kzrj5j6vzq952p35g0vzk747xjz-e2fsprogs-1.46.5
16M	/nix/store/4s21k8k7p1mfik0b33r2spq5hq7774k1-glibc-2.33-108
22M	total

after fuse dep

38K	/nix/store/k15b817jqz4ckp8rp1mgpkvvx78xxp2n-shadow-4.8.1-su
112K	/nix/store/bqjh8dc6m5plswxrmmn9x4cpxrrw94lv-zlib-1.2.11
277K	/nix/store/nzw0c7ag22mbyc4xrqyy1q1azq9r8kis-audit-2.8.5
285K	/nix/store/ka1xx3ldpliww27wmskc1yxlgcfisdyf-libcap-ng-0.8.2
371K	/nix/store/mvgg2fk5wwrcmm3wbrjhjn034aivrik2-fuse-2.9.9
618K	/nix/store/w2id1hwv4vv7hvp4slgsyrydrjbfqdxc-libidn2-2.3.2
732K	/nix/store/4nmqxajzaf60yjribkgvj5j54x9yvr1r-bash-5.1-p12
738K	/nix/store/7wi0dn50wgimvfi30i3d4mxz40vcal10-e2fsprogs-1.46.5-bin
747K	/nix/store/8ckxc8biqqfdwyhr0w70jgrcb4h7a4y5-libunistring-0.9.10
853K	/nix/store/kx41yd3yyr9bwrsk85fhhx6qhavfwql6-util-linux-2.37.3-lib
1,3M	/nix/store/043lz8mvyx5vxl058c1i586yqc8ax4ig-glibc-2.33-108-bin
1,7M	/nix/store/fpzbv79ak68sh2sh6mag6jym553wfxws-db-4.8.30
2,3M	/nix/store/9w5l1zrdd21hjxgjp5jnxxr6jibpjxd4-shadow-4.8.1
2,3M	/nix/store/hjmxalhkvvajs2n26b0ry7ns56bh9k9s-e2fsprogs-1.46.5
2,5M	/nix/store/ndnqiz3nnifj1blhg9q626xlmkqq1nmh-gcc-10.3.0-lib
2,8M	/nix/store/pnp5qkmj8m07jl8pghhglfdczz2840r9-linux-pam-1.5.2
2,9M	/nix/store/h25q7c560bchn326363ms2001jjgf338-util-linux-2.37.3-bin
16M	/nix/store/4s21k8k7p1mfik0b33r2spq5hq7774k1-glibc-2.33-108
36M	total

e2fsprogs: build fuse2fs on linux only

the fuse for macos might be broken

pkgs/tools/filesystems/e2fsprogs/default.nix

@@ -1,4 +1,5 @@
 { lib, stdenv, buildPackages, fetchurl, fetchpatch, pkg-config, libuuid, gettext, texinfo
+, fuse
 , shared ? !stdenv.hostPlatform.isStatic
 , e2fsprogs, runCommand
 }:
@@ -12,11 +13,14 @@ stdenv.mkDerivation rec {
     sha256 = "1fgvwbj9ihz5svzrd2l0s18k16r4qg3wimrniv71fn3vdcg0shxp";
   };
 
-  outputs = [ "bin" "dev" "out" "man" "info" ];
+  # fuse2fs adds 14mb of dependencies
+  outputs = [ "bin" "dev" "out" "man" "info" ]
+    ++ lib.optionals stdenv.isLinux [ "fuse2fs" ];
 
   depsBuildBuild = [ buildPackages.stdenv.cc ];
   nativeBuildInputs = [ pkg-config texinfo ];
-  buildInputs = [ libuuid gettext ];
+  buildInputs = [ libuuid gettext ]
+    ++ lib.optionals stdenv.isLinux [ fuse ];
 
   # Only use glibc's __GNUC_PREREQ(X,Y) (checks if compiler is gcc version >= X.Y) when using glibc
   patches = if stdenv.hostPlatform.libc == "glibc" then null
@@ -62,6 +66,9 @@ stdenv.mkDerivation rec {
     if [ -f $out/lib/${pname}/e2scrub_all_cron ]; then
       mv $out/lib/${pname}/e2scrub_all_cron $bin/bin/
     fi
+  '' + lib.optionalString stdenv.isLinux ''
+    mkdir -p $fuse2fs/bin
+    mv $bin/bin/fuse2fs $fuse2fs/bin/fuse2fs
   '';
 
   enableParallelBuilding = true;

pkgs/top-level/aliases.nix

@@ -371,6 +371,7 @@ mapAliases ({
   fslint = throw "fslint has been removed: end of life. Upstream recommends using czkawka (https://qarmin.github.io/czkawka/) instead"; # Added 2022-01-15
   fuse_exfat = throw "'fuse_exfat' has been renamed to/replaced by 'exfat'"; # Converted to throw 2022-02-22
   fuseki = throw "'fuseki' has been renamed to/replaced by 'apache-jena-fuseki'"; # Converted to throw 2022-02-22
+  fuse2fs = if stdenv.isLinux then e2fsprogs.fuse2fs else null; # Added 2022-03-27 preserve, reason: convenience, arch has a package named fuse2fs too.
   fwupdate = throw "fwupdate was merged into fwupd"; # Added 2020-05-19
 
   ### G ###