Mercurial > hg
annotate mercurial/osutil.c @ 7059:6a76cf980999
Improve error handling in osutil.c
1) In posix part set error when path is too long so instead of
SystemError: error returned without exception set
it will raise
ValueError: path too long
2) In Win32 part replace generic
PyErr_SetExcFromWindowsErrWithFilename
by
PyErr_SetFromWindowsErrWithFilename
The exception returned is WinError(based on OSError) and
some rudimentary errno translation is performed from Windows error range
to errno module friendly range so errors like ENOENT can be handled via symbolic
constant and consistently between Win32 and Posix.
author | Petr Kodl <petrkodl@gmail.com> |
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date | Wed, 01 Oct 2008 08:41:18 -0400 |
parents | 2c1f18b88b6a |
children | 8a5c88c7e97b |
rev | line source |
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1 /* |
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2 osutil.c - native operating system services |
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3 |
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4 Copyright 2007 Matt Mackall and others |
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5 |
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6 This software may be used and distributed according to the terms of |
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7 the GNU General Public License, incorporated herein by reference. |
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8 */ |
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9 |
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10 #define _ATFILE_SOURCE |
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11 #include <Python.h> |
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12 #ifdef _WIN32 |
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13 #include <windows.h> |
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14 #else |
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15 #include <dirent.h> |
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16 #include <fcntl.h> |
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17 #include <string.h> |
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18 #include <sys/stat.h> |
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19 #include <sys/types.h> |
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20 #include <unistd.h> |
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21 #endif |
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22 |
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23 #ifdef _WIN32 |
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24 /* |
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25 stat struct compatible with hg expectations |
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26 Mercurial only uses st_mode, st_size and st_mtime |
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27 the rest is kept to minimize changes between implementations |
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28 */ |
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29 struct hg_stat { |
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30 int st_dev; |
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31 int st_mode; |
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32 int st_nlink; |
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33 __int64 st_size; |
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34 int st_mtime; |
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35 int st_ctime; |
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36 }; |
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37 struct listdir_stat { |
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38 PyObject_HEAD |
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39 struct hg_stat st; |
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40 }; |
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41 #else |
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42 struct listdir_stat { |
5421 | 43 PyObject_HEAD |
44 struct stat st; | |
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45 }; |
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46 #endif |
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47 |
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48 #define listdir_slot(name) \ |
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49 static PyObject *listdir_stat_##name(PyObject *self, void *x) \ |
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50 { \ |
5421 | 51 return PyInt_FromLong(((struct listdir_stat *)self)->st.name); \ |
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52 } |
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53 |
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54 listdir_slot(st_dev) |
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55 listdir_slot(st_mode) |
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56 listdir_slot(st_nlink) |
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57 #ifdef _WIN32 |
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58 static PyObject *listdir_stat_st_size(PyObject *self, void *x) |
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59 { |
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60 return PyLong_FromLongLong( |
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61 (PY_LONG_LONG)((struct listdir_stat *)self)->st.st_size); |
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62 } |
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63 #else |
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64 listdir_slot(st_size) |
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65 #endif |
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66 listdir_slot(st_mtime) |
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67 listdir_slot(st_ctime) |
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68 |
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69 static struct PyGetSetDef listdir_stat_getsets[] = { |
5421 | 70 {"st_dev", listdir_stat_st_dev, 0, 0, 0}, |
71 {"st_mode", listdir_stat_st_mode, 0, 0, 0}, | |
72 {"st_nlink", listdir_stat_st_nlink, 0, 0, 0}, | |
73 {"st_size", listdir_stat_st_size, 0, 0, 0}, | |
74 {"st_mtime", listdir_stat_st_mtime, 0, 0, 0}, | |
75 {"st_ctime", listdir_stat_st_ctime, 0, 0, 0}, | |
76 {0, 0, 0, 0, 0} | |
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77 }; |
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78 |
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79 static PyObject *listdir_stat_new(PyTypeObject *t, PyObject *a, PyObject *k) |
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80 { |
5421 | 81 return t->tp_alloc(t, 0); |
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82 } |
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83 |
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84 static void listdir_stat_dealloc(PyObject *o) |
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85 { |
5421 | 86 o->ob_type->tp_free(o); |
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87 } |
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88 |
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89 static PyTypeObject listdir_stat_type = { |
5421 | 90 PyObject_HEAD_INIT(NULL) |
91 0, /*ob_size*/ | |
92 "osutil.stat", /*tp_name*/ | |
93 sizeof(struct listdir_stat), /*tp_basicsize*/ | |
94 0, /*tp_itemsize*/ | |
95 (destructor)listdir_stat_dealloc, /*tp_dealloc*/ | |
96 0, /*tp_print*/ | |
97 0, /*tp_getattr*/ | |
98 0, /*tp_setattr*/ | |
99 0, /*tp_compare*/ | |
100 0, /*tp_repr*/ | |
101 0, /*tp_as_number*/ | |
102 0, /*tp_as_sequence*/ | |
103 0, /*tp_as_mapping*/ | |
104 0, /*tp_hash */ | |
105 0, /*tp_call*/ | |
106 0, /*tp_str*/ | |
107 0, /*tp_getattro*/ | |
108 0, /*tp_setattro*/ | |
109 0, /*tp_as_buffer*/ | |
110 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ | |
111 "stat objects", /* tp_doc */ | |
112 0, /* tp_traverse */ | |
113 0, /* tp_clear */ | |
114 0, /* tp_richcompare */ | |
115 0, /* tp_weaklistoffset */ | |
116 0, /* tp_iter */ | |
117 0, /* tp_iternext */ | |
118 0, /* tp_methods */ | |
119 0, /* tp_members */ | |
120 listdir_stat_getsets, /* tp_getset */ | |
121 0, /* tp_base */ | |
122 0, /* tp_dict */ | |
123 0, /* tp_descr_get */ | |
124 0, /* tp_descr_set */ | |
125 0, /* tp_dictoffset */ | |
126 0, /* tp_init */ | |
127 0, /* tp_alloc */ | |
128 listdir_stat_new, /* tp_new */ | |
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129 }; |
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130 |
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131 #ifdef _WIN32 |
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132 |
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133 static int to_python_time(const FILETIME *tm) |
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134 { |
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135 /* number of seconds between epoch and January 1 1601 */ |
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136 const __int64 a0 = (__int64)134774L * (__int64)24L * (__int64)3600L; |
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137 /* conversion factor from 100ns to 1s */ |
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138 const __int64 a1 = 10000000; |
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139 /* explicit (int) cast to suspend compiler warnings */ |
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140 return (int)((((__int64)tm->dwHighDateTime << 32) |
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141 + tm->dwLowDateTime) / a1 - a0); |
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142 } |
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143 |
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144 static PyObject *make_item(const WIN32_FIND_DATAA *fd, int wantstat) |
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145 { |
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146 PyObject *py_st; |
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147 struct hg_stat *stp; |
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148 |
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149 int kind = (fd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
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150 ? _S_IFDIR : _S_IFREG; |
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151 |
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152 if (!wantstat) |
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153 return Py_BuildValue("si", fd->cFileName, kind); |
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154 |
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155 py_st = PyObject_CallObject((PyObject *)&listdir_stat_type, NULL); |
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156 if (!py_st) |
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157 return NULL; |
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158 |
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diff
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|
159 stp = &((struct listdir_stat *)py_st)->st; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
changeset
|
160 /* |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
changeset
|
161 use kind as st_mode |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
162 rwx bits on Win32 are meaningless |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
changeset
|
163 and Hg does not use them anyway |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
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|
164 */ |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
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|
165 stp->st_mode = kind; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
166 stp->st_mtime = to_python_time(&fd->ftLastWriteTime); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
167 stp->st_ctime = to_python_time(&fd->ftCreationTime); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
168 if (kind == _S_IFREG) |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
changeset
|
169 stp->st_size = ((__int64)fd->nFileSizeHigh << 32) |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
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|
170 + fd->nFileSizeLow; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
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|
171 return Py_BuildValue("siN", fd->cFileName, |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
changeset
|
172 kind, py_st); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
changeset
|
173 } |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
174 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
175 static PyObject *listdir(PyObject *self, PyObject *args, PyObject *kwargs) |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
changeset
|
176 { |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
177 PyObject *rval = NULL; /* initialize - return value */ |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
changeset
|
178 PyObject *statobj = NULL; /* initialize - optional arg */ |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
179 PyObject *list; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
180 HANDLE fh; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
181 WIN32_FIND_DATAA fd; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
182 char *path, *pattern, *skip = NULL; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
183 int plen, wantstat; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
184 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
185 static char *kwlist[] = {"path", "stat", "skip", NULL}; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
186 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
changeset
|
187 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s#|Os:listdir", |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
188 kwlist, &path, &plen, &statobj, &skip)) |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
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|
189 goto error_parse; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
190 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
191 wantstat = statobj && PyObject_IsTrue(statobj); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
192 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
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diff
changeset
|
193 /* build the path + \* pattern string */ |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
194 pattern = malloc(plen+3); /* path + \* + \0 */ |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
195 if (!pattern) { |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
196 PyErr_NoMemory(); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
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|
197 goto error_parse; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
198 } |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
199 strcpy(pattern, path); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
200 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
201 if (plen > 0) { |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
202 char c = path[plen-1]; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
203 if (c != ':' && c != '/' && c != '\\') |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
204 pattern[plen++] = '\\'; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
205 } |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
206 strcpy(pattern + plen, "*"); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
207 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
208 fh = FindFirstFileA(pattern, &fd); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
209 if (fh == INVALID_HANDLE_VALUE) { |
7059
6a76cf980999
Improve error handling in osutil.c
Petr Kodl <petrkodl@gmail.com>
parents:
7056
diff
changeset
|
210 PyErr_SetFromWindowsErrWithFilename(GetLastError(), path); |
7056
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
211 goto error_file; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
212 } |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
213 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
214 list = PyList_New(0); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
215 if (!list) |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
216 goto error_list; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
217 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
218 do { |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
219 PyObject *item; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
220 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
221 if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
222 if (!strcmp(fd.cFileName, ".") |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
223 || !strcmp(fd.cFileName, "..")) |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
224 continue; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
225 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
226 if (skip && !strcmp(fd.cFileName, skip)) { |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
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diff
changeset
|
227 rval = PyList_New(0); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
228 goto error; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
229 } |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
230 } |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
231 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
232 item = make_item(&fd, wantstat); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
233 if (!item) |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
234 goto error; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
235 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
236 if (PyList_Append(list, item)) { |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
237 Py_XDECREF(item); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
238 goto error; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
239 } |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
240 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
241 Py_XDECREF(item); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
242 } while (FindNextFileA(fh, &fd)); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
243 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
244 if (GetLastError() != ERROR_NO_MORE_FILES) { |
7059
6a76cf980999
Improve error handling in osutil.c
Petr Kodl <petrkodl@gmail.com>
parents:
7056
diff
changeset
|
245 PyErr_SetFromWindowsErrWithFilename(GetLastError(), path); |
7056
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
246 goto error; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
247 } |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
248 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
249 rval = list; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
250 Py_XINCREF(rval); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
251 error: |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
252 Py_XDECREF(list); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
253 error_list: |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
254 FindClose(fh); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
255 error_file: |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
256 free(pattern); |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
257 error_parse: |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
258 return rval; |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
259 } |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
260 |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
261 #else |
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
262 |
7031
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
263 int entkind(struct dirent *ent) |
5425
830f6e280c90
osutils: pull file stat loop into its own function
Matt Mackall <mpm@selenic.com>
parents:
5424
diff
changeset
|
264 { |
7031
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
265 #ifdef DT_REG |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
266 switch (ent->d_type) { |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
267 case DT_REG: return S_IFREG; |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
268 case DT_DIR: return S_IFDIR; |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
269 case DT_LNK: return S_IFLNK; |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
270 case DT_BLK: return S_IFBLK; |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
271 case DT_CHR: return S_IFCHR; |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
272 case DT_FIFO: return S_IFIFO; |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
273 case DT_SOCK: return S_IFSOCK; |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
274 } |
5463
3b204881f959
osutil: use fdopendir instead of dirfd
Bryan O'Sullivan <bos@serpentine.com>
parents:
5457
diff
changeset
|
275 #endif |
7033
892d27fb04a5
osutil: fix some braindamage
Matt Mackall <mpm@selenic.com>
parents:
7031
diff
changeset
|
276 return -1; |
5425
830f6e280c90
osutils: pull file stat loop into its own function
Matt Mackall <mpm@selenic.com>
parents:
5424
diff
changeset
|
277 } |
830f6e280c90
osutils: pull file stat loop into its own function
Matt Mackall <mpm@selenic.com>
parents:
5424
diff
changeset
|
278 |
5396
5105b119edd2
Add osutil module, containing a listdir function.
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
279 static PyObject *listdir(PyObject *self, PyObject *args, PyObject *kwargs) |
5105b119edd2
Add osutil module, containing a listdir function.
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
280 { |
7034
0d513661d6c2
listdir: add support for aborting if a certain path is found
Matt Mackall <mpm@selenic.com>
parents:
7033
diff
changeset
|
281 static char *kwlist[] = { "path", "stat", "skip", NULL }; |
7031
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
282 PyObject *statflag = NULL, *list, *elem, *stat, *ret = NULL; |
7034
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283 char fullpath[PATH_MAX + 10], *path, *skip = NULL; |
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284 int pathlen, keepstat, kind, dfd = -1, err; |
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285 struct stat st; |
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|
286 struct dirent *ent; |
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|
287 DIR *dir; |
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288 |
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289 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s#|Os:listdir", kwlist, |
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290 &path, &pathlen, &statflag, &skip)) |
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291 goto error_parse; |
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292 |
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Improve error handling in osutil.c
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293 if (pathlen >= PATH_MAX) { |
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Improve error handling in osutil.c
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294 PyErr_SetString(PyExc_ValueError, "path too long"); |
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295 goto error_parse; |
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|
296 } |
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297 strncpy(fullpath, path, PATH_MAX); |
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298 fullpath[pathlen] = '/'; |
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299 keepstat = statflag && PyObject_IsTrue(statflag); |
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300 |
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301 #ifdef AT_SYMLINK_NOFOLLOW |
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302 dfd = open(path, O_RDONLY); |
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303 if (dfd == -1) { |
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304 PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); |
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305 goto error_parse; |
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|
306 } |
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|
307 dir = fdopendir(dfd); |
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|
308 #else |
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|
309 dir = opendir(path); |
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|
310 #endif |
5421 | 311 if (!dir) { |
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|
312 PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); |
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313 goto error_dir; |
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|
314 } |
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Add osutil module, containing a listdir function.
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315 |
5421 | 316 list = PyList_New(0); |
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|
317 if (!list) |
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|
318 goto error_list; |
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|
319 |
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|
320 while ((ent = readdir(dir))) { |
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|
321 if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..")) |
19e8d034932e
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|
322 continue; |
5416
ca890c0c3f1f
osutil.c: style fix - delete trailing end-of-line spaces
Giorgos Keramidas <keramida@ceid.upatras.gr>
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5398
diff
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|
323 |
7031
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diff
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|
324 kind = entkind(ent); |
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|
325 if (kind == -1 || keepstat) { |
7033
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|
326 #ifdef AT_SYMLINK_NOFOLLOW |
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|
327 err = fstatat(dfd, ent->d_name, &st, |
892d27fb04a5
osutil: fix some braindamage
Matt Mackall <mpm@selenic.com>
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diff
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|
328 AT_SYMLINK_NOFOLLOW); |
892d27fb04a5
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diff
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|
329 #else |
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diff
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|
330 strncpy(fullpath + pathlen + 1, ent->d_name, |
892d27fb04a5
osutil: fix some braindamage
Matt Mackall <mpm@selenic.com>
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diff
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|
331 PATH_MAX - pathlen); |
892d27fb04a5
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diff
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|
332 fullpath[PATH_MAX] = 0; |
892d27fb04a5
osutil: fix some braindamage
Matt Mackall <mpm@selenic.com>
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diff
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|
333 err = lstat(fullpath, &st); |
892d27fb04a5
osutil: fix some braindamage
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diff
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|
334 #endif |
7031
19e8d034932e
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diff
changeset
|
335 if (err == -1) { |
19e8d034932e
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diff
changeset
|
336 strncpy(fullpath + pathlen + 1, ent->d_name, |
19e8d034932e
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Matt Mackall <mpm@selenic.com>
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7022
diff
changeset
|
337 PATH_MAX - pathlen); |
19e8d034932e
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diff
changeset
|
338 fullpath[PATH_MAX] = 0; |
19e8d034932e
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7022
diff
changeset
|
339 PyErr_SetFromErrnoWithFilename(PyExc_OSError, |
19e8d034932e
osutil: major listdir cleanup
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7022
diff
changeset
|
340 fullpath); |
19e8d034932e
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Matt Mackall <mpm@selenic.com>
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7022
diff
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|
341 goto error; |
19e8d034932e
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Matt Mackall <mpm@selenic.com>
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7022
diff
changeset
|
342 } |
19e8d034932e
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diff
changeset
|
343 kind = st.st_mode & S_IFMT; |
19e8d034932e
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|
344 } |
5396
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diff
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|
345 |
7034
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|
346 /* quit early? */ |
0d513661d6c2
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|
347 if (skip && kind == S_IFDIR && !strcmp(ent->d_name, skip)) { |
0d513661d6c2
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|
348 ret = PyList_New(0); |
0d513661d6c2
listdir: add support for aborting if a certain path is found
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diff
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|
349 goto error; |
0d513661d6c2
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diff
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|
350 } |
0d513661d6c2
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diff
changeset
|
351 |
7031
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diff
changeset
|
352 if (keepstat) { |
19e8d034932e
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diff
changeset
|
353 stat = PyObject_CallObject((PyObject *)&listdir_stat_type, NULL); |
19e8d034932e
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diff
changeset
|
354 if (!stat) |
19e8d034932e
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diff
changeset
|
355 goto error; |
19e8d034932e
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diff
changeset
|
356 memcpy(&((struct listdir_stat *)stat)->st, &st, sizeof(st)); |
19e8d034932e
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diff
changeset
|
357 elem = Py_BuildValue("siN", ent->d_name, kind, stat); |
19e8d034932e
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7022
diff
changeset
|
358 } else |
19e8d034932e
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parents:
7022
diff
changeset
|
359 elem = Py_BuildValue("si", ent->d_name, kind); |
19e8d034932e
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parents:
7022
diff
changeset
|
360 if (!elem) |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
361 goto error; |
19e8d034932e
osutil: major listdir cleanup
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parents:
7022
diff
changeset
|
362 |
19e8d034932e
osutil: major listdir cleanup
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parents:
7022
diff
changeset
|
363 PyList_Append(list, elem); |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
364 Py_DECREF(elem); |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
365 } |
5421 | 366 |
7031
19e8d034932e
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parents:
7022
diff
changeset
|
367 ret = list; |
19e8d034932e
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parents:
7022
diff
changeset
|
368 Py_INCREF(ret); |
5421 | 369 |
7031
19e8d034932e
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Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
370 error: |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
371 Py_DECREF(list); |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
372 error_list: |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
373 closedir(dir); |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
374 error_dir: |
7033
892d27fb04a5
osutil: fix some braindamage
Matt Mackall <mpm@selenic.com>
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diff
changeset
|
375 #ifdef AT_SYMLINK_NOFOLLOW |
892d27fb04a5
osutil: fix some braindamage
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parents:
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diff
changeset
|
376 close(dfd); |
892d27fb04a5
osutil: fix some braindamage
Matt Mackall <mpm@selenic.com>
parents:
7031
diff
changeset
|
377 #endif |
7031
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
378 error_parse: |
19e8d034932e
osutil: major listdir cleanup
Matt Mackall <mpm@selenic.com>
parents:
7022
diff
changeset
|
379 return ret; |
5421 | 380 } |
5396
5105b119edd2
Add osutil module, containing a listdir function.
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
381 |
7056
2c1f18b88b6a
osutil: implementation for Win32
Petr Kodl <petrkodl@gmail.com>
parents:
7034
diff
changeset
|
382 #endif /* ndef _WIN32 */ |
2c1f18b88b6a
osutil: implementation for Win32
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parents:
7034
diff
changeset
|
383 |
5396
5105b119edd2
Add osutil module, containing a listdir function.
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
384 static char osutil_doc[] = "Native operating system services."; |
5105b119edd2
Add osutil module, containing a listdir function.
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
385 |
5105b119edd2
Add osutil module, containing a listdir function.
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
386 static PyMethodDef methods[] = { |
5421 | 387 {"listdir", (PyCFunction)listdir, METH_VARARGS | METH_KEYWORDS, |
388 "list a directory\n"}, | |
389 {NULL, NULL} | |
5396
5105b119edd2
Add osutil module, containing a listdir function.
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
390 }; |
5105b119edd2
Add osutil module, containing a listdir function.
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
391 |
5105b119edd2
Add osutil module, containing a listdir function.
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
392 PyMODINIT_FUNC initosutil(void) |
5105b119edd2
Add osutil module, containing a listdir function.
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
393 { |
5421 | 394 if (PyType_Ready(&listdir_stat_type) == -1) |
395 return; | |
5396
5105b119edd2
Add osutil module, containing a listdir function.
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
396 |
5421 | 397 Py_InitModule3("osutil", methods, osutil_doc); |
5396
5105b119edd2
Add osutil module, containing a listdir function.
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
398 } |