-
Notifications
You must be signed in to change notification settings - Fork 1
/
symlink
executable file
·164 lines (136 loc) · 4.92 KB
/
symlink
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
#!/usr/bin/env python3
import argparse
import logging
import os
import os.path as path
import shutil
BASE_DIR = "."
dryrun = False
def parse():
parser = argparse.ArgumentParser(
description="Symlinks all files having extension '.symlink'."
)
parser.add_argument(
"-o",
"--overwrite-all",
help="Overwrite everything by default.",
action="store_true",
)
parser.add_argument(
"-b", "--backup-all", help="Backup everything by default.", action="store_true"
)
parser.add_argument(
"-c",
"--create-paths",
help="Automatically create non-existent paths.",
action="store_true",
)
parser.add_argument(
"-d", "--dryrun", help="Run in dry-run mode", action="store_true"
)
parser.add_argument("-l", "--loglevel", help="Log level", default="error")
return parser.parse_args()
def confirm(question):
while True:
response = input("%s [Y/n] " % (question)).lower()
if not response:
return True
if response in ["y", "yes"]:
return True
if response in ["n", "no"]:
return False
print("Please specify '(y)es' or '(n)o'.")
def get_symlinks():
symlinks = []
for dirpath, dirnames, filenames in os.walk(BASE_DIR):
link_name = path.normpath(path.expanduser(path.join("~", dirpath)))
source = path.abspath(dirpath)
if ".git" in dirnames:
del dirnames[dirnames.index(".git")]
for name in filenames + dirnames:
root, ext = path.splitext(name)
if ext == ".symlink":
symlinks.append((path.join(source, name), path.join(link_name, root)))
return symlinks
def set_logger(level):
global log
logformat = "%(asctime)s [%(levelname)s] %(message)s"
log = logging.getLogger()
log.setLevel(level)
# Logging to the console
handler = logging.StreamHandler()
handler.setFormatter(logging.Formatter(logformat))
log.addHandler(handler)
def symlink(overwrite_all=False, backup_all=False, create_paths=False):
skip_all = False
for source, link_name in get_symlinks():
overwrite = backup = False
dirname = path.dirname(link_name)
if path.lexists(link_name):
if skip_all:
continue
if not (overwrite_all or backup_all or dryrun):
if path.islink(link_name):
answer = input(
"Symbolic link %r already exists.\n"
"What do you want to do? "
"[s]kip, [S]kip all existing, [o]verwrite, "
"[O]verwrite all existing: " % link_name
)
else:
answer = input(
"File %r already exists.\n"
"What do you want to do? "
"[s]kip, [S]kip all, [o]verwrite, [O]verwrite all,"
" [b]ackup, [B]ackup all: " % link_name
)
if answer == "O":
overwrite_all = True
elif answer == "o":
overwrite = True
elif answer == "B":
backup_all = True
elif answer == "b":
backup = True
elif answer == "S":
skip_all = True
continue
elif answer == "s":
continue
else:
return
if backup or backup_all:
if not dryrun:
os.rename(link_name, f"{link_name}.backup")
log.info(f"renamed {link_name} -> {link_name}.backup")
if overwrite or overwrite_all:
if not dryrun:
try:
os.remove(link_name)
except OSError:
shutil.rmtree(link_name)
log.info(f"removed {link_name}")
elif not path.exists(dirname):
if create_paths or confirm(
"Path {!r} does not exists. Create?".format(dirname)
):
if not dryrun:
os.makedirs(dirname)
log.info(f"created dir {dirname}")
else:
print("Skipping {!r}".format(link_name))
continue
try:
if not dryrun:
os.symlink(source, link_name)
log.info(f"symlinked {source} -> {link_name}")
except Exception as exception:
print("Exception {} for {!r}".format(exception, link_name))
print("An error occured while symlinking {!r}".format(link_name))
if __name__ == "__main__":
args = parse()
set_logger(args.loglevel.upper())
if args.dryrun:
dryrun = True
logging.debug("dry-running")
symlink(args.overwrite_all, args.backup_all, args.create_paths)