Subversion Repositories HelenOS

Rev

Rev 3425 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
3017 decky 1
#!/usr/bin/env python
2
#
3
# Copyright (c) 2008 Martin Decky
4
# All rights reserved.
5
#
6
# Redistribution and use in source and binary forms, with or without
7
# modification, are permitted provided that the following conditions
8
# are met:
9
#
10
# - Redistributions of source code must retain the above copyright
11
#   notice, this list of conditions and the following disclaimer.
12
# - Redistributions in binary form must reproduce the above copyright
13
#   notice, this list of conditions and the following disclaimer in the
14
#   documentation and/or other materials provided with the distribution.
15
# - The name of the author may not be used to endorse or promote products
16
#   derived from this software without specific prior written permission.
17
#
18
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
#
29
"""
30
TMPFS creator
31
"""
32
 
33
import sys
34
import os
3425 svoboda 35
import xstruct
3017 decky 36
 
3597 svoboda 37
exclude_names = set(['.svn'])
38
 
3425 svoboda 39
HEADER = """little:
40
    char tag[5]  /* 'TMPFS' */
41
"""
3021 decky 42
 
3425 svoboda 43
DENTRY_NONE = """little:
44
    uint8_t kind        /* NONE */
45
    uint32_t fname_len  /* 0 */
46
"""
47
 
48
DENTRY_FILE = """little:
49
    uint8_t kind        /* FILE */
50
    uint32_t fname_len  /* filename length */
51
    char fname[%d]      /* filename */
52
    uint32_t flen       /* file length */
53
"""
54
 
55
DENTRY_DIRECTORY = """little:
56
    uint8_t kind        /* DIRECTORY */
57
    uint32_t fname_len  /* filename length */
58
    char fname[%d]      /* filename */
59
"""
60
 
61
TMPFS_NONE = 0
62
TMPFS_FILE = 1
63
TMPFS_DIRECTORY = 2
64
 
3017 decky 65
def usage(prname):
66
    "Print usage syntax"
3425 svoboda 67
    print prname + " <PATH> <IMAGE>"
3017 decky 68
 
3424 svoboda 69
def recursion(root, outf):
70
    "Recursive directory walk"
71
 
72
    for name in os.listdir(root):
73
        canon = os.path.join(root, name)
74
 
3597 svoboda 75
        if (os.path.isfile(canon) and (not name in exclude_names)):
3424 svoboda 76
            size = os.path.getsize(canon)
77
 
3425 svoboda 78
            dentry = xstruct.create(DENTRY_FILE % len(name))
79
            dentry.kind = TMPFS_FILE
80
            dentry.fname_len = len(name)
81
            dentry.fname = name
82
            dentry.flen = size
83
 
84
            outf.write(dentry.pack())
85
 
3424 svoboda 86
            inf = file(canon, "r")
3425 svoboda 87
            rd = 0;
3424 svoboda 88
            while (rd < size):
89
                data = inf.read(4096);
90
                outf.write(data)
91
                rd += len(data)
92
            inf.close()
93
 
3597 svoboda 94
        if (os.path.isdir(canon) and (not name in exclude_names)):
3425 svoboda 95
            dentry = xstruct.create(DENTRY_DIRECTORY % len(name))
96
            dentry.kind = TMPFS_DIRECTORY
97
            dentry.fname_len = len(name)
98
            dentry.fname = name
99
 
100
            outf.write(dentry.pack())
101
 
102
            recursion(canon, outf)
103
 
104
            dentry = xstruct.create(DENTRY_NONE)
105
            dentry.kind = TMPFS_NONE
106
            dentry.fname_len = 0
107
 
108
            outf.write(dentry.pack())
3424 svoboda 109
 
3017 decky 110
def main():
3425 svoboda 111
    if (len(sys.argv) < 3):
3017 decky 112
        usage(sys.argv[0])
113
        return
114
 
3425 svoboda 115
    path = os.path.abspath(sys.argv[1])
3017 decky 116
    if (not os.path.isdir(path)):
117
        print "<PATH> must be a directory"
118
        return
119
 
3425 svoboda 120
    outf = file(sys.argv[2], "w")
3017 decky 121
 
3425 svoboda 122
    header = xstruct.create(HEADER)
123
    header.tag = "TMPFS"
3424 svoboda 124
 
3425 svoboda 125
    outf.write(header.pack())
3017 decky 126
 
3425 svoboda 127
    recursion(path, outf)
3021 decky 128
 
3425 svoboda 129
    dentry = xstruct.create(DENTRY_NONE)
130
    dentry.kind = TMPFS_NONE
131
    dentry.fname_len = 0
132
 
133
    outf.write(dentry.pack())
134
 
3017 decky 135
    outf.close()
3425 svoboda 136
 
3017 decky 137
if __name__ == '__main__':
138
    main()