diff mbox series

[v1.1,07/13] fstests: automatically generate group files

Message ID 20210611233703.GF2945738@locust (mailing list archive)
State New, archived
Headers show
Series None | expand

Commit Message

Darrick J. Wong June 11, 2021, 11:37 p.m. UTC
From: Darrick J. Wong <djwong@kernel.org>

Now that we've moved the group membership details into the test case
files themselves, automatically generate the group files during build.
The autogenerated files are named "group.list" instead of "group" to
avoid conflicts between generated and (stale) SCM files as everyone
rebases.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
v1.1: fix make install
---
 .gitignore             |    3 +++
 common/preamble        |    8 ++++++++
 include/buildgrouplist |    8 ++++++++
 tests/Makefile         |    4 ++++
 tests/btrfs/Makefile   |    6 +++++-
 tests/ceph/Makefile    |    6 +++++-
 tests/cifs/Makefile    |    6 +++++-
 tests/ext4/Makefile    |    6 +++++-
 tests/f2fs/Makefile    |    6 +++++-
 tests/generic/Makefile |    6 +++++-
 tests/nfs/Makefile     |    6 +++++-
 tests/ocfs2/Makefile   |    6 +++++-
 tests/overlay/Makefile |    6 +++++-
 tests/perf/Makefile    |    6 +++++-
 tests/shared/Makefile  |    6 +++++-
 tests/udf/Makefile     |    6 +++++-
 tests/xfs/Makefile     |    6 +++++-
 tools/mkgroupfile      |   42 ++++++++++++++++++++++++++++++++++++++++++
 18 files changed, 130 insertions(+), 13 deletions(-)
 create mode 100644 include/buildgrouplist
 create mode 100755 tools/mkgroupfile

Comments

Allison Henderson June 14, 2021, 5:38 a.m. UTC | #1
On 6/11/21 4:37 PM, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@kernel.org>
> 
> Now that we've moved the group membership details into the test case
> files themselves, automatically generate the group files during build.
> The autogenerated files are named "group.list" instead of "group" to
> avoid conflicts between generated and (stale) SCM files as everyone
> rebases.
> 
> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Ok, makes sense
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>

> ---
> v1.1: fix make install
> ---
>   .gitignore             |    3 +++
>   common/preamble        |    8 ++++++++
>   include/buildgrouplist |    8 ++++++++
>   tests/Makefile         |    4 ++++
>   tests/btrfs/Makefile   |    6 +++++-
>   tests/ceph/Makefile    |    6 +++++-
>   tests/cifs/Makefile    |    6 +++++-
>   tests/ext4/Makefile    |    6 +++++-
>   tests/f2fs/Makefile    |    6 +++++-
>   tests/generic/Makefile |    6 +++++-
>   tests/nfs/Makefile     |    6 +++++-
>   tests/ocfs2/Makefile   |    6 +++++-
>   tests/overlay/Makefile |    6 +++++-
>   tests/perf/Makefile    |    6 +++++-
>   tests/shared/Makefile  |    6 +++++-
>   tests/udf/Makefile     |    6 +++++-
>   tests/xfs/Makefile     |    6 +++++-
>   tools/mkgroupfile      |   42 ++++++++++++++++++++++++++++++++++++++++++
>   18 files changed, 130 insertions(+), 13 deletions(-)
>   create mode 100644 include/buildgrouplist
>   create mode 100755 tools/mkgroupfile
> 
> diff --git a/.gitignore b/.gitignore
> index c62c1556..ab366961 100644
> --- a/.gitignore
> +++ b/.gitignore
> @@ -11,6 +11,9 @@ tags
>   /local.config
>   /results
>   
> +# autogenerated group files
> +/tests/*/group.list
> +
>   # autoconf generated files
>   /aclocal.m4
>   /autom4te.cache
> diff --git a/common/preamble b/common/preamble
> index 63f66957..4fe8fd3f 100644
> --- a/common/preamble
> +++ b/common/preamble
> @@ -32,6 +32,14 @@ _begin_fstest()
>   	fi
>   
>   	seq=`basename $0`
> +
> +	# If we're only running the test to generate a group.list file,
> +	# spit out the group data and exit.
> +	if [ -n "$GENERATE_GROUPS" ]; then
> +		echo "$seq $@"
> +		exit 0
> +	fi
> +
>   	seqres=$RESULT_DIR/$seq
>   	echo "QA output created by $seq"
>   
> diff --git a/include/buildgrouplist b/include/buildgrouplist
> new file mode 100644
> index 00000000..d898efa3
> --- /dev/null
> +++ b/include/buildgrouplist
> @@ -0,0 +1,8 @@
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2021 Oracle, Inc.  All Rights Reserved.
> +#
> +.PHONY: group.list
> +
> +group.list:
> +	@echo " [GROUP] $$PWD/$@"
> +	$(Q)$(TOPDIR)/tools/mkgroupfile $@
> diff --git a/tests/Makefile b/tests/Makefile
> index 8ce8f209..5c8f0b10 100644
> --- a/tests/Makefile
> +++ b/tests/Makefile
> @@ -7,6 +7,10 @@ include $(TOPDIR)/include/builddefs
>   
>   TESTS_SUBDIRS = $(sort $(dir $(wildcard $(CURDIR)/[[:lower:]]*/)))
>   
> +SUBDIRS = $(wildcard [[:lower:]]*)
> +
> +default: $(SUBDIRS)
> +
>   include $(BUILDRULES)
>   
>   install: $(addsuffix -install,$(TESTS_SUBDIRS))
> diff --git a/tests/btrfs/Makefile b/tests/btrfs/Makefile
> index 2d936421..1b72a1a1 100644
> --- a/tests/btrfs/Makefile
> +++ b/tests/btrfs/Makefile
> @@ -4,16 +4,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   BTRFS_DIR = btrfs
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(BTRFS_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tests/ceph/Makefile b/tests/ceph/Makefile
> index 55e35d77..2761e1e9 100644
> --- a/tests/ceph/Makefile
> +++ b/tests/ceph/Makefile
> @@ -2,16 +2,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   CEPH_DIR = ceph
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(CEPH_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tests/cifs/Makefile b/tests/cifs/Makefile
> index 0c5cf3be..62c48935 100644
> --- a/tests/cifs/Makefile
> +++ b/tests/cifs/Makefile
> @@ -4,16 +4,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   CIFS_DIR = cifs
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(CIFS_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tests/ext4/Makefile b/tests/ext4/Makefile
> index beb1541f..a2a0d561 100644
> --- a/tests/ext4/Makefile
> +++ b/tests/ext4/Makefile
> @@ -4,16 +4,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   EXT4_DIR = ext4
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(EXT4_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tests/f2fs/Makefile b/tests/f2fs/Makefile
> index d13bca3f..9d1ed3c6 100644
> --- a/tests/f2fs/Makefile
> +++ b/tests/f2fs/Makefile
> @@ -5,16 +5,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   F2FS_DIR = f2fs
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(F2FS_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tests/generic/Makefile b/tests/generic/Makefile
> index 3878d05c..b464b22b 100644
> --- a/tests/generic/Makefile
> +++ b/tests/generic/Makefile
> @@ -4,16 +4,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   GENERIC_DIR = generic
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(GENERIC_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tests/nfs/Makefile b/tests/nfs/Makefile
> index 754f2b25..128d2a3a 100644
> --- a/tests/nfs/Makefile
> +++ b/tests/nfs/Makefile
> @@ -4,16 +4,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   NFS_DIR = nfs
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(NFS_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tests/ocfs2/Makefile b/tests/ocfs2/Makefile
> index e1337908..260ad31b 100644
> --- a/tests/ocfs2/Makefile
> +++ b/tests/ocfs2/Makefile
> @@ -4,16 +4,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   OCFS2_DIR = ocfs2
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(OCFS2_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tests/overlay/Makefile b/tests/overlay/Makefile
> index b07f8925..de3203c2 100644
> --- a/tests/overlay/Makefile
> +++ b/tests/overlay/Makefile
> @@ -4,16 +4,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   TEST_DIR = overlay
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(TEST_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tests/perf/Makefile b/tests/perf/Makefile
> index 620f1dbf..0c74ba39 100644
> --- a/tests/perf/Makefile
> +++ b/tests/perf/Makefile
> @@ -4,16 +4,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   PERF_DIR = perf
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(PERF_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tests/shared/Makefile b/tests/shared/Makefile
> index 8a832782..f3128714 100644
> --- a/tests/shared/Makefile
> +++ b/tests/shared/Makefile
> @@ -4,16 +4,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   SHARED_DIR = shared
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(SHARED_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tests/udf/Makefile b/tests/udf/Makefile
> index c9c9f1bd..ed4434f0 100644
> --- a/tests/udf/Makefile
> +++ b/tests/udf/Makefile
> @@ -4,16 +4,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   UDF_DIR = udf
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(UDF_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tests/xfs/Makefile b/tests/xfs/Makefile
> index d64800ea..5f413e67 100644
> --- a/tests/xfs/Makefile
> +++ b/tests/xfs/Makefile
> @@ -4,16 +4,20 @@
>   
>   TOPDIR = ../..
>   include $(TOPDIR)/include/builddefs
> +include $(TOPDIR)/include/buildgrouplist
>   
>   XFS_DIR = xfs
>   TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(XFS_DIR)
> +DIRT = group.list
> +
> +default: $(DIRT)
>   
>   include $(BUILDRULES)
>   
>   install:
>   	$(INSTALL) -m 755 -d $(TARGET_DIR)
>   	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
> -	$(INSTALL) -m 644 group $(TARGET_DIR)
> +	$(INSTALL) -m 644 group.list $(TARGET_DIR)
>   	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
>   
>   # Nothing.
> diff --git a/tools/mkgroupfile b/tools/mkgroupfile
> new file mode 100755
> index 00000000..0681e5d2
> --- /dev/null
> +++ b/tools/mkgroupfile
> @@ -0,0 +1,42 @@
> +#!/bin/bash
> +
> +# Generate a group file from the _begin_fstest call in each test.
> +
> +if [ "$1" = "--help" ]; then
> +	echo "Usage: (cd tests/XXX/ ; ../../tools/mkgroupfile [output])"
> +	exit 1
> +fi
> +
> +test_dir="$PWD"
> +groupfile="$1"
> +
> +if [ ! -x ../../check ]; then
> +	echo "$0: Run this from tests/XXX/."
> +	exit 1
> +fi
> +
> +generate_groupfile() {
> +	cat << ENDL
> +# QA groups control file, automatically generated.
> +# See _begin_fstest in each test for details.
> +
> +ENDL
> +	cd ../../
> +	export GENERATE_GROUPS=yes
> +	grep -R -l "^_begin_fstest" "$test_dir/" 2>/dev/null | while read testfile; do
> +		test -x "$testfile" && "$testfile"
> +	done | sort -g
> +	cd "$test_dir"
> +}
> +
> +if [ -z "$groupfile" ] || [ "$groupfile" = "-" ]; then
> +	# Dump the group file to stdout and exit
> +	generate_groupfile
> +	exit 0
> +fi
> +
> +# Otherwise, write the group file to disk somewhere.
> +ngroupfile="${groupfile}.new"
> +rm -f "$ngroupfile"
> +generate_groupfile >> "$ngroupfile"
> +mv "$ngroupfile" "$groupfile"
>
diff mbox series

Patch

diff --git a/.gitignore b/.gitignore
index c62c1556..ab366961 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,9 @@  tags
 /local.config
 /results
 
+# autogenerated group files
+/tests/*/group.list
+
 # autoconf generated files
 /aclocal.m4
 /autom4te.cache
diff --git a/common/preamble b/common/preamble
index 63f66957..4fe8fd3f 100644
--- a/common/preamble
+++ b/common/preamble
@@ -32,6 +32,14 @@  _begin_fstest()
 	fi
 
 	seq=`basename $0`
+
+	# If we're only running the test to generate a group.list file,
+	# spit out the group data and exit.
+	if [ -n "$GENERATE_GROUPS" ]; then
+		echo "$seq $@"
+		exit 0
+	fi
+
 	seqres=$RESULT_DIR/$seq
 	echo "QA output created by $seq"
 
diff --git a/include/buildgrouplist b/include/buildgrouplist
new file mode 100644
index 00000000..d898efa3
--- /dev/null
+++ b/include/buildgrouplist
@@ -0,0 +1,8 @@ 
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2021 Oracle, Inc.  All Rights Reserved.
+#
+.PHONY: group.list
+
+group.list:
+	@echo " [GROUP] $$PWD/$@"
+	$(Q)$(TOPDIR)/tools/mkgroupfile $@
diff --git a/tests/Makefile b/tests/Makefile
index 8ce8f209..5c8f0b10 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -7,6 +7,10 @@  include $(TOPDIR)/include/builddefs
 
 TESTS_SUBDIRS = $(sort $(dir $(wildcard $(CURDIR)/[[:lower:]]*/)))
 
+SUBDIRS = $(wildcard [[:lower:]]*)
+
+default: $(SUBDIRS)
+
 include $(BUILDRULES)
 
 install: $(addsuffix -install,$(TESTS_SUBDIRS))
diff --git a/tests/btrfs/Makefile b/tests/btrfs/Makefile
index 2d936421..1b72a1a1 100644
--- a/tests/btrfs/Makefile
+++ b/tests/btrfs/Makefile
@@ -4,16 +4,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 BTRFS_DIR = btrfs
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(BTRFS_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tests/ceph/Makefile b/tests/ceph/Makefile
index 55e35d77..2761e1e9 100644
--- a/tests/ceph/Makefile
+++ b/tests/ceph/Makefile
@@ -2,16 +2,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 CEPH_DIR = ceph
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(CEPH_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tests/cifs/Makefile b/tests/cifs/Makefile
index 0c5cf3be..62c48935 100644
--- a/tests/cifs/Makefile
+++ b/tests/cifs/Makefile
@@ -4,16 +4,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 CIFS_DIR = cifs
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(CIFS_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tests/ext4/Makefile b/tests/ext4/Makefile
index beb1541f..a2a0d561 100644
--- a/tests/ext4/Makefile
+++ b/tests/ext4/Makefile
@@ -4,16 +4,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 EXT4_DIR = ext4
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(EXT4_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tests/f2fs/Makefile b/tests/f2fs/Makefile
index d13bca3f..9d1ed3c6 100644
--- a/tests/f2fs/Makefile
+++ b/tests/f2fs/Makefile
@@ -5,16 +5,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 F2FS_DIR = f2fs
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(F2FS_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tests/generic/Makefile b/tests/generic/Makefile
index 3878d05c..b464b22b 100644
--- a/tests/generic/Makefile
+++ b/tests/generic/Makefile
@@ -4,16 +4,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 GENERIC_DIR = generic
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(GENERIC_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tests/nfs/Makefile b/tests/nfs/Makefile
index 754f2b25..128d2a3a 100644
--- a/tests/nfs/Makefile
+++ b/tests/nfs/Makefile
@@ -4,16 +4,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 NFS_DIR = nfs
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(NFS_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tests/ocfs2/Makefile b/tests/ocfs2/Makefile
index e1337908..260ad31b 100644
--- a/tests/ocfs2/Makefile
+++ b/tests/ocfs2/Makefile
@@ -4,16 +4,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 OCFS2_DIR = ocfs2
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(OCFS2_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tests/overlay/Makefile b/tests/overlay/Makefile
index b07f8925..de3203c2 100644
--- a/tests/overlay/Makefile
+++ b/tests/overlay/Makefile
@@ -4,16 +4,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 TEST_DIR = overlay
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(TEST_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tests/perf/Makefile b/tests/perf/Makefile
index 620f1dbf..0c74ba39 100644
--- a/tests/perf/Makefile
+++ b/tests/perf/Makefile
@@ -4,16 +4,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 PERF_DIR = perf
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(PERF_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tests/shared/Makefile b/tests/shared/Makefile
index 8a832782..f3128714 100644
--- a/tests/shared/Makefile
+++ b/tests/shared/Makefile
@@ -4,16 +4,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 SHARED_DIR = shared
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(SHARED_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tests/udf/Makefile b/tests/udf/Makefile
index c9c9f1bd..ed4434f0 100644
--- a/tests/udf/Makefile
+++ b/tests/udf/Makefile
@@ -4,16 +4,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 UDF_DIR = udf
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(UDF_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tests/xfs/Makefile b/tests/xfs/Makefile
index d64800ea..5f413e67 100644
--- a/tests/xfs/Makefile
+++ b/tests/xfs/Makefile
@@ -4,16 +4,20 @@ 
 
 TOPDIR = ../..
 include $(TOPDIR)/include/builddefs
+include $(TOPDIR)/include/buildgrouplist
 
 XFS_DIR = xfs
 TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/$(XFS_DIR)
+DIRT = group.list
+
+default: $(DIRT)
 
 include $(BUILDRULES)
 
 install:
 	$(INSTALL) -m 755 -d $(TARGET_DIR)
 	$(INSTALL) -m 755 $(TESTS) $(TARGET_DIR)
-	$(INSTALL) -m 644 group $(TARGET_DIR)
+	$(INSTALL) -m 644 group.list $(TARGET_DIR)
 	$(INSTALL) -m 644 $(OUTFILES) $(TARGET_DIR)
 
 # Nothing.
diff --git a/tools/mkgroupfile b/tools/mkgroupfile
new file mode 100755
index 00000000..0681e5d2
--- /dev/null
+++ b/tools/mkgroupfile
@@ -0,0 +1,42 @@ 
+#!/bin/bash
+
+# Generate a group file from the _begin_fstest call in each test.
+
+if [ "$1" = "--help" ]; then
+	echo "Usage: (cd tests/XXX/ ; ../../tools/mkgroupfile [output])"
+	exit 1
+fi
+
+test_dir="$PWD"
+groupfile="$1"
+
+if [ ! -x ../../check ]; then
+	echo "$0: Run this from tests/XXX/."
+	exit 1
+fi
+
+generate_groupfile() {
+	cat << ENDL
+# QA groups control file, automatically generated.
+# See _begin_fstest in each test for details.
+
+ENDL
+	cd ../../
+	export GENERATE_GROUPS=yes
+	grep -R -l "^_begin_fstest" "$test_dir/" 2>/dev/null | while read testfile; do
+		test -x "$testfile" && "$testfile"
+	done | sort -g
+	cd "$test_dir"
+}
+
+if [ -z "$groupfile" ] || [ "$groupfile" = "-" ]; then
+	# Dump the group file to stdout and exit
+	generate_groupfile
+	exit 0
+fi
+
+# Otherwise, write the group file to disk somewhere.
+ngroupfile="${groupfile}.new"
+rm -f "$ngroupfile"
+generate_groupfile >> "$ngroupfile"
+mv "$ngroupfile" "$groupfile"