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filesystem-sets: apply "ruff format" and "ruff check --fix"

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This commit is contained in:
Yu Watanabe
2026-05-18 02:44:46 +09:00
parent 4758d1f71a
commit a89c11b672
1 changed files with 109 additions and 98 deletions
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src/basic/filesystem-sets.py
+109 -98
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@@ -124,12 +124,12 @@ NAME_TO_MAGIC = {
'z3fold': ['Z3FOLD_MAGIC'],
'zonefs': ['ZONEFS_MAGIC'],
'zsmalloc': ['ZSMALLOC_MAGIC'],
}
} # fmt: skip
# System magics are sometimes not unique, because file systems got new
# revisions or got renamed. Let's prefer newer over older here, and thus ignore
# the old names.
OBSOLETE_NAMES = {
OBSOLETE_NAMES = {
'cpuset', # magic taken over by cgroupfs
'devtmpfs', # not a file system of its own, but just a "named superblock" of tmpfs
'ext2', # ext4 is the newest revision of ext2 + ext3
@@ -142,115 +142,116 @@ OBSOLETE_NAMES = {
'nfs', # nfs4 is the newest revision of nfs
'pvfs2', # orangefs is the new name of pvfs2
'smb3', # smb3 is an alias for cifs
}
} # fmt: skip
FILESYSTEM_SETS = [
(
"@basic-api",
"Basic filesystem API",
"cgroup",
"cgroup2",
"devpts",
"devtmpfs",
"mqueue",
"proc",
"sysfs",
'@basic-api',
'Basic filesystem API',
'cgroup',
'cgroup2',
'devpts',
'devtmpfs',
'mqueue',
'proc',
'sysfs',
),
(
"@anonymous",
"Anonymous inodes",
"anon_inodefs",
"pipefs",
"sockfs",
'@anonymous',
'Anonymous inodes',
'anon_inodefs',
'pipefs',
'sockfs',
),
(
"@application",
"Application virtual filesystems",
"autofs",
"fuse",
"overlay",
'@application',
'Application virtual filesystems',
'autofs',
'fuse',
'overlay',
),
(
"@auxiliary-api",
"Auxiliary filesystem API",
"binfmt_misc",
"configfs",
"efivarfs",
"fusectl",
"hugetlbfs",
"rpc_pipefs",
"securityfs",
'@auxiliary-api',
'Auxiliary filesystem API',
'binfmt_misc',
'configfs',
'efivarfs',
'fusectl',
'hugetlbfs',
'rpc_pipefs',
'securityfs',
),
(
"@common-block",
"Common block device filesystems",
"btrfs",
"erofs",
"exfat",
"ext4",
"f2fs",
"iso9660",
"ntfs3",
"squashfs",
"udf",
"vfat",
"xfs",
'@common-block',
'Common block device filesystems',
'btrfs',
'erofs',
'exfat',
'ext4',
'f2fs',
'iso9660',
'ntfs3',
'squashfs',
'udf',
'vfat',
'xfs',
),
(
"@historical-block",
"Historical block device filesystems",
"ext2",
"ext3",
"minix",
'@historical-block',
'Historical block device filesystems',
'ext2',
'ext3',
'minix',
),
(
"@network",
"Well-known network filesystems",
"afs",
"ceph",
"cifs",
"gfs",
"gfs2",
"ncp",
"ncpfs",
"nfs",
"nfs4",
"ocfs2",
"orangefs",
"pvfs2",
"smb3",
"smbfs",
'@network',
'Well-known network filesystems',
'afs',
'ceph',
'cifs',
'gfs',
'gfs2',
'ncp',
'ncpfs',
'nfs',
'nfs4',
'ocfs2',
'orangefs',
'pvfs2',
'smb3',
'smbfs',
),
(
"@privileged-api",
"Privileged filesystem API",
"bpf",
"debugfs",
"pstore",
"tracefs",
'@privileged-api',
'Privileged filesystem API',
'bpf',
'debugfs',
'pstore',
'tracefs',
),
(
"@security",
"Security/MAC API VFS",
"apparmorfs",
"selinuxfs",
"smackfs",
'@security',
'Security/MAC API VFS',
'apparmorfs',
'selinuxfs',
'smackfs',
),
(
"@temporary",
"Temporary filesystems",
"ramfs",
"tmpfs",
'@temporary',
'Temporary filesystems',
'ramfs',
'tmpfs',
),
(
"@known",
"All known filesystems declared in the kernel",
'@known',
'All known filesystems declared in the kernel',
*NAME_TO_MAGIC.keys(),
),
]
def generate_gperf():
print("""\
print('''\
/* SPDX-License-Identifier: LGPL-2.1-or-later */
%{
#if __GNUC__ >= 15
@@ -275,12 +276,13 @@ struct FilesystemMagic;
%omit-struct-type
%struct-type
%includes
%%""")
%%''')
for name, magics in NAME_TO_MAGIC.items():
print(f"{name + ',':16} {{{', '.join(magics)}}}")
print(f'{name + ",":16} {{{", ".join(magics)}}}')
def generate_fs_type_to_string():
print("""\
print('''\
#include <linux/magic.h>
#include "filesystems.h"
@@ -290,7 +292,7 @@ def generate_fs_type_to_string():
#define PROJECT_FILE __FILE__
const char* fs_type_to_string(statfs_f_type_t magic) {
switch (magic) {""")
switch (magic) {''')
for name, magics in NAME_TO_MAGIC.items():
if name in OBSOLETE_NAMES:
@@ -299,10 +301,11 @@ const char* fs_type_to_string(statfs_f_type_t magic) {
print(f' case (statfs_f_type_t) {magic}:')
print(f' return "{name}";')
print("""\
print('''\
}
return NULL;
}""")
}''')
def generate_fs_in_group():
print('bool fs_in_group(const struct statfs *st, FilesystemGroups fs_group) {')
@@ -312,14 +315,14 @@ def generate_fs_in_group():
magics = sorted(set(sum((NAME_TO_MAGIC[fs] for fs in filesystems), start=[])))
enum = 'FILESYSTEM_SET_' + name[1:].upper().replace('-', '_')
print(f' case {enum}:')
opts = '\n || '.join(f'F_TYPE_EQUAL(st->f_type, {magic})'
for magic in magics)
opts = '\n || '.join(f'F_TYPE_EQUAL(st->f_type, {magic})' for magic in magics)
print(f' return {opts};')
print(' default: assert_not_reached();')
print(' }')
print('}')
def generate_filesystem_sets():
print('const FilesystemSet filesystem_sets[_FILESYSTEM_SET_MAX] = {')
@@ -329,37 +332,45 @@ def generate_filesystem_sets():
print(f' [{enum}] = {{')
print(f' .name = "{name}",')
print(f' .help = "{desc}",')
print(f' .value =')
print(' .value =')
for filesystem in filesystems:
print(f' "{filesystem}\\0"')
print(' },')
print('};')
def magic_defines():
cpp = os.environ['CPP'].split()
out = subprocess.check_output(
[*cpp, '-dM', '-include', 'linux/magic.h', '-'],
stdin=subprocess.DEVNULL,
text=True)
text=True,
)
for line in out.splitlines():
_, name, *rest = line.split()
if ('_MAGIC' in name
and rest and rest[0].startswith('0x')
and name not in {
if (
'_MAGIC' in name
and rest
and rest[0].startswith('0x')
and name
not in {
'STACK_END_MAGIC',
'MTD_INODE_FS_MAGIC',
'FUTEXFS_SUPER_MAGIC',
'CRAMFS_MAGIC_WEND',
}):
}
):
yield name
def check():
kernel_magics = set(magic_defines())
our_magics = set(sum(NAME_TO_MAGIC.values(), start=[]))
extra = kernel_magics - our_magics
if extra:
sys.exit(f"kernel knows additional filesystem magics: {', '.join(sorted(extra))}")
sys.exit(f'kernel knows additional filesystem magics: {", ".join(sorted(extra))}')
if __name__ == '__main__':
for arg in sys.argv[1:]: