Restore raft testing on assorted filesystems

Signed-off-by: Cole Miller <cole.miller@canonical.com>

.github/workflows/build-and-test.yml

@@ -26,7 +26,9 @@ jobs:
     - name: Set up dependencies
       run: |
           sudo apt update
-          sudo apt install -y lcov libsqlite3-dev liblz4-dev libuv1-dev
+          sudo apt install -y libsqlite3-dev liblz4-dev libuv1-dev \
+                              linux-libc-dev btrfs-progs xfsprogs zfsutils-linux \
+                              lcov
 
     - name: Build dqlite
       env:
@@ -47,7 +49,10 @@ jobs:
         CC: ${{ matrix.compiler }}
         LIBDQLITE_TRACE: 1
       run: |
+           ./test/raft/lib/fs.sh setup
+           export $(test/raft/lib/fs.sh detect)
            make check || (cat ./test-suite.log && false)
+           ./test/raft/lib/fs.sh teardown
 
     - name: Coverage
       env:

configure.ac

@@ -50,6 +50,14 @@ AC_CHECK_HEADERS([linux/io_uring.h linux/aio_abi.h])
 # Checks for library functions and definitions.
 AC_CHECK_DECLS(RWF_NOWAIT, [], [AC_MSG_ERROR(Linux kernel >= 4.14 required.)], [#include <linux/aio_abi.h>])
 
+# Check if zfs >= 0.8.0 is available (for direct I/O support).
+AC_CHECK_PROG(have_zfs, zfs, yes)
+AS_IF([test x"$have_zfs" = x"yes"],
+   [AX_COMPARE_VERSION($(cat /sys/module/zfs/version | cut -f 1 -d -), [ge], [0.8.0],
+       [AC_DEFINE(RAFT_HAVE_ZFS_WITH_DIRECT_IO)], [])
+   ],
+   [])
+
 # Enable large file support. This is mandatory in order to interoperate with
 # libuv, which enables large file support by default, making the size of 'off_t'
 # on 32-bit architecture be 8 bytes instead of the normal 4.

test/raft/lib/fs.sh

@@ -43,7 +43,7 @@ fi
 if [ "${cmd}" = "detect" ]; then
     vars=""
     for type in $types; do
-        vars="${vars}RAFT_TMP_$(echo ${type} | tr [a-z] [A-Z])=./tmp/${type} "
+        vars="${vars}RAFT_TMP_$(echo ${type} | tr a-z A-Z)=./tmp/${type} "
     done
     echo $vars
     exit 0