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Diffstat (limited to 'meta/lib/rootfspostcommands.py')
-rw-r--r-- | meta/lib/rootfspostcommands.py | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/meta/lib/rootfspostcommands.py b/meta/lib/rootfspostcommands.py deleted file mode 100644 index fdb9f5b850..0000000000 --- a/meta/lib/rootfspostcommands.py +++ /dev/null | |||
@@ -1,60 +0,0 @@ | |||
1 | # | ||
2 | # SPDX-License-Identifier: GPL-2.0-only | ||
3 | # | ||
4 | |||
5 | import os | ||
6 | |||
7 | def sort_file(filename, mapping): | ||
8 | """ | ||
9 | Sorts a passwd or group file based on the numeric ID in the third column. | ||
10 | If a mapping is given, the name from the first column is mapped via that | ||
11 | dictionary instead (necessary for /etc/shadow and /etc/gshadow). If not, | ||
12 | a new mapping is created on the fly and returned. | ||
13 | """ | ||
14 | new_mapping = {} | ||
15 | with open(filename, 'rb+') as f: | ||
16 | lines = f.readlines() | ||
17 | # No explicit error checking for the sake of simplicity. /etc | ||
18 | # files are assumed to be well-formed, causing exceptions if | ||
19 | # not. | ||
20 | for line in lines: | ||
21 | entries = line.split(b':') | ||
22 | name = entries[0] | ||
23 | if mapping is None: | ||
24 | id = int(entries[2]) | ||
25 | else: | ||
26 | id = mapping[name] | ||
27 | new_mapping[name] = id | ||
28 | # Sort by numeric id first, with entire line as secondary key | ||
29 | # (just in case that there is more than one entry for the same id). | ||
30 | lines.sort(key=lambda line: (new_mapping[line.split(b':')[0]], line)) | ||
31 | # We overwrite the entire file, i.e. no truncate() necessary. | ||
32 | f.seek(0) | ||
33 | f.write(b''.join(lines)) | ||
34 | return new_mapping | ||
35 | |||
36 | def remove_backup(filename): | ||
37 | """ | ||
38 | Removes the backup file for files like /etc/passwd. | ||
39 | """ | ||
40 | backup_filename = filename + '-' | ||
41 | if os.path.exists(backup_filename): | ||
42 | os.unlink(backup_filename) | ||
43 | |||
44 | def sort_passwd(sysconfdir): | ||
45 | """ | ||
46 | Sorts passwd and group files in a rootfs /etc directory by ID. | ||
47 | Backup files are sometimes are inconsistent and then cannot be | ||
48 | sorted (YOCTO #11043), and more importantly, are not needed in | ||
49 | the initial rootfs, so they get deleted. | ||
50 | """ | ||
51 | for main, shadow in (('passwd', 'shadow'), | ||
52 | ('group', 'gshadow')): | ||
53 | filename = os.path.join(sysconfdir, main) | ||
54 | remove_backup(filename) | ||
55 | if os.path.exists(filename): | ||
56 | mapping = sort_file(filename, None) | ||
57 | filename = os.path.join(sysconfdir, shadow) | ||
58 | remove_backup(filename) | ||
59 | if os.path.exists(filename): | ||
60 | sort_file(filename, mapping) | ||