Subversion Repositories HelenOS

Rev

Rev 3263 | 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
3259 decky 35
import xstruct
3017 decky 36
 
3262 decky 37
HEADER = """little:
3263 decky 38
    char tag[5]  /* 'TMPFS' */
3262 decky 39
"""
3259 decky 40
 
3262 decky 41
DENTRY_NONE = """little:
42
    uint8_t kind        /* NONE */
43
    uint32_t fname_len  /* 0 */
44
"""
3260 decky 45
 
3262 decky 46
DENTRY_FILE = """little:
47
    uint8_t kind        /* FILE */
48
    uint32_t fname_len  /* filename length */
3263 decky 49
    char fname[%d]      /* filename */
3262 decky 50
    uint32_t flen       /* file length */
51
"""
3260 decky 52
 
3262 decky 53
DENTRY_DIRECTORY = """little:
54
    uint8_t kind        /* DIRECTORY */
55
    uint32_t fname_len  /* filename length */
3263 decky 56
    char fname[%d]      /* filename */
3262 decky 57
"""
3259 decky 58
 
3262 decky 59
TMPFS_NONE = 0
60
TMPFS_FILE = 1
61
TMPFS_DIRECTORY = 2
62
 
3017 decky 63
def usage(prname):
64
    "Print usage syntax"
3259 decky 65
    print prname + " <PATH> <IMAGE>"
3017 decky 66
 
3046 decky 67
def recursion(root, outf):
68
    "Recursive directory walk"
69
 
70
    for name in os.listdir(root):
71
        canon = os.path.join(root, name)
72
 
73
        if (os.path.isfile(canon)):
74
            size = os.path.getsize(canon)
75
 
3262 decky 76
            dentry = xstruct.create(DENTRY_FILE % len(name))
77
            dentry.kind = TMPFS_FILE
78
            dentry.fname_len = len(name)
79
            dentry.fname = name
80
            dentry.flen = size
81
 
82
            outf.write(dentry.pack())
83
 
3046 decky 84
            inf = file(canon, "r")
3262 decky 85
            rd = 0;
3046 decky 86
            while (rd < size):
87
                data = inf.read(4096);
88
                outf.write(data)
89
                rd += len(data)
90
            inf.close()
91
 
92
        if (os.path.isdir(canon)):
3262 decky 93
            dentry = xstruct.create(DENTRY_DIRECTORY % len(name))
94
            dentry.kind = TMPFS_DIRECTORY
95
            dentry.fname_len = len(name)
96
            dentry.fname = name
97
 
98
            outf.write(dentry.pack())
99
 
3259 decky 100
            recursion(canon, outf)
3262 decky 101
 
102
            dentry = xstruct.create(DENTRY_NONE)
103
            dentry.kind = TMPFS_NONE
104
            dentry.fname_len = 0
105
 
106
            outf.write(dentry.pack())
3046 decky 107
 
3017 decky 108
def main():
3244 jermar 109
    if (len(sys.argv) < 3):
3017 decky 110
        usage(sys.argv[0])
111
        return
112
 
3244 jermar 113
    path = os.path.abspath(sys.argv[1])
3017 decky 114
    if (not os.path.isdir(path)):
115
        print "<PATH> must be a directory"
116
        return
117
 
3244 jermar 118
    outf = file(sys.argv[2], "w")
3017 decky 119
 
3262 decky 120
    header = xstruct.create(HEADER)
121
    header.tag = "TMPFS"
122
 
123
    outf.write(header.pack())
124
 
3244 jermar 125
    recursion(path, outf)
3262 decky 126
 
127
    dentry = xstruct.create(DENTRY_NONE)
128
    dentry.kind = TMPFS_NONE
129
    dentry.fname_len = 0
130
 
131
    outf.write(dentry.pack())
132
 
3244 jermar 133
    outf.close()
3262 decky 134
 
3017 decky 135
if __name__ == '__main__':
136
    main()