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authorOri Bernstein <ori@eigenstate.org>2021-06-14 00:00:37 +0000
committerOri Bernstein <ori@eigenstate.org>2021-06-14 00:00:37 +0000
commita73a964e51247ed169d322c725a3a18859f109a3 (patch)
tree3f752d117274d444bda44e85609aeac1acf313f3 /sys/lib/python/mercurial/osutil.c
parente64efe273fcb921a61bf27d33b230c4e64fcd425 (diff)
python, hg: tow outside the environment.
they've served us well, and can ride off into the sunset.
Diffstat (limited to 'sys/lib/python/mercurial/osutil.c')
-rw-r--r--sys/lib/python/mercurial/osutil.c534
1 files changed, 0 insertions, 534 deletions
diff --git a/sys/lib/python/mercurial/osutil.c b/sys/lib/python/mercurial/osutil.c
deleted file mode 100644
index a9874d0c9..000000000
--- a/sys/lib/python/mercurial/osutil.c
+++ /dev/null
@@ -1,534 +0,0 @@
-/*
- osutil.c - native operating system services
-
- Copyright 2007 Matt Mackall and others
-
- This software may be used and distributed according to the terms of
- the GNU General Public License, incorporated herein by reference.
-*/
-
-#define _ATFILE_SOURCE
-#include <Python.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <string.h>
-
-#ifdef _WIN32
-# include <windows.h>
-# include <io.h>
-#else
-# include <dirent.h>
-# include <sys/stat.h>
-# include <sys/types.h>
-# include <unistd.h>
-#endif
-
-// some platforms lack the PATH_MAX definition (eg. GNU/Hurd)
-#ifndef PATH_MAX
-#define PATH_MAX 4096
-#endif
-
-#ifdef _WIN32
-/*
-stat struct compatible with hg expectations
-Mercurial only uses st_mode, st_size and st_mtime
-the rest is kept to minimize changes between implementations
-*/
-struct hg_stat {
- int st_dev;
- int st_mode;
- int st_nlink;
- __int64 st_size;
- int st_mtime;
- int st_ctime;
-};
-struct listdir_stat {
- PyObject_HEAD
- struct hg_stat st;
-};
-#else
-struct listdir_stat {
- PyObject_HEAD
- struct stat st;
-};
-#endif
-
-#define listdir_slot(name) \
- static PyObject *listdir_stat_##name(PyObject *self, void *x) \
- { \
- return PyInt_FromLong(((struct listdir_stat *)self)->st.name); \
- }
-
-listdir_slot(st_dev)
-listdir_slot(st_mode)
-listdir_slot(st_nlink)
-#ifdef _WIN32
-static PyObject *listdir_stat_st_size(PyObject *self, void *x)
-{
- return PyLong_FromLongLong(
- (PY_LONG_LONG)((struct listdir_stat *)self)->st.st_size);
-}
-#else
-listdir_slot(st_size)
-#endif
-listdir_slot(st_mtime)
-listdir_slot(st_ctime)
-
-static struct PyGetSetDef listdir_stat_getsets[] = {
- {"st_dev", listdir_stat_st_dev, 0, 0, 0},
- {"st_mode", listdir_stat_st_mode, 0, 0, 0},
- {"st_nlink", listdir_stat_st_nlink, 0, 0, 0},
- {"st_size", listdir_stat_st_size, 0, 0, 0},
- {"st_mtime", listdir_stat_st_mtime, 0, 0, 0},
- {"st_ctime", listdir_stat_st_ctime, 0, 0, 0},
- {0, 0, 0, 0, 0}
-};
-
-static PyObject *listdir_stat_new(PyTypeObject *t, PyObject *a, PyObject *k)
-{
- return t->tp_alloc(t, 0);
-}
-
-static void listdir_stat_dealloc(PyObject *o)
-{
- o->ob_type->tp_free(o);
-}
-
-static PyTypeObject listdir_stat_type = {
- PyObject_HEAD_INIT(NULL)
- 0, /*ob_size*/
- "osutil.stat", /*tp_name*/
- sizeof(struct listdir_stat), /*tp_basicsize*/
- 0, /*tp_itemsize*/
- (destructor)listdir_stat_dealloc, /*tp_dealloc*/
- 0, /*tp_print*/
- 0, /*tp_getattr*/
- 0, /*tp_setattr*/
- 0, /*tp_compare*/
- 0, /*tp_repr*/
- 0, /*tp_as_number*/
- 0, /*tp_as_sequence*/
- 0, /*tp_as_mapping*/
- 0, /*tp_hash */
- 0, /*tp_call*/
- 0, /*tp_str*/
- 0, /*tp_getattro*/
- 0, /*tp_setattro*/
- 0, /*tp_as_buffer*/
- Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
- "stat objects", /* tp_doc */
- 0, /* tp_traverse */
- 0, /* tp_clear */
- 0, /* tp_richcompare */
- 0, /* tp_weaklistoffset */
- 0, /* tp_iter */
- 0, /* tp_iternext */
- 0, /* tp_methods */
- 0, /* tp_members */
- listdir_stat_getsets, /* tp_getset */
- 0, /* tp_base */
- 0, /* tp_dict */
- 0, /* tp_descr_get */
- 0, /* tp_descr_set */
- 0, /* tp_dictoffset */
- 0, /* tp_init */
- 0, /* tp_alloc */
- listdir_stat_new, /* tp_new */
-};
-
-#ifdef _WIN32
-
-static int to_python_time(const FILETIME *tm)
-{
- /* number of seconds between epoch and January 1 1601 */
- const __int64 a0 = (__int64)134774L * (__int64)24L * (__int64)3600L;
- /* conversion factor from 100ns to 1s */
- const __int64 a1 = 10000000;
- /* explicit (int) cast to suspend compiler warnings */
- return (int)((((__int64)tm->dwHighDateTime << 32)
- + tm->dwLowDateTime) / a1 - a0);
-}
-
-static PyObject *make_item(const WIN32_FIND_DATAA *fd, int wantstat)
-{
- PyObject *py_st;
- struct hg_stat *stp;
-
- int kind = (fd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
- ? _S_IFDIR : _S_IFREG;
-
- if (!wantstat)
- return Py_BuildValue("si", fd->cFileName, kind);
-
- py_st = PyObject_CallObject((PyObject *)&listdir_stat_type, NULL);
- if (!py_st)
- return NULL;
-
- stp = &((struct listdir_stat *)py_st)->st;
- /*
- use kind as st_mode
- rwx bits on Win32 are meaningless
- and Hg does not use them anyway
- */
- stp->st_mode = kind;
- stp->st_mtime = to_python_time(&fd->ftLastWriteTime);
- stp->st_ctime = to_python_time(&fd->ftCreationTime);
- if (kind == _S_IFREG)
- stp->st_size = ((__int64)fd->nFileSizeHigh << 32)
- + fd->nFileSizeLow;
- return Py_BuildValue("siN", fd->cFileName,
- kind, py_st);
-}
-
-static PyObject *_listdir(char *path, int plen, int wantstat, char *skip)
-{
- PyObject *rval = NULL; /* initialize - return value */
- PyObject *list;
- HANDLE fh;
- WIN32_FIND_DATAA fd;
- char *pattern;
-
- /* build the path + \* pattern string */
- pattern = malloc(plen+3); /* path + \* + \0 */
- if (!pattern) {
- PyErr_NoMemory();
- goto error_nomem;
- }
- strcpy(pattern, path);
-
- if (plen > 0) {
- char c = path[plen-1];
- if (c != ':' && c != '/' && c != '\\')
- pattern[plen++] = '\\';
- }
- strcpy(pattern + plen, "*");
-
- fh = FindFirstFileA(pattern, &fd);
- if (fh == INVALID_HANDLE_VALUE) {
- PyErr_SetFromWindowsErrWithFilename(GetLastError(), path);
- goto error_file;
- }
-
- list = PyList_New(0);
- if (!list)
- goto error_list;
-
- do {
- PyObject *item;
-
- if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
- if (!strcmp(fd.cFileName, ".")
- || !strcmp(fd.cFileName, ".."))
- continue;
-
- if (skip && !strcmp(fd.cFileName, skip)) {
- rval = PyList_New(0);
- goto error;
- }
- }
-
- item = make_item(&fd, wantstat);
- if (!item)
- goto error;
-
- if (PyList_Append(list, item)) {
- Py_XDECREF(item);
- goto error;
- }
-
- Py_XDECREF(item);
- } while (FindNextFileA(fh, &fd));
-
- if (GetLastError() != ERROR_NO_MORE_FILES) {
- PyErr_SetFromWindowsErrWithFilename(GetLastError(), path);
- goto error;
- }
-
- rval = list;
- Py_XINCREF(rval);
-error:
- Py_XDECREF(list);
-error_list:
- FindClose(fh);
-error_file:
- free(pattern);
-error_nomem:
- return rval;
-}
-
-#else
-
-int entkind(struct dirent *ent)
-{
-#ifdef DT_REG
- switch (ent->d_type) {
- case DT_REG: return S_IFREG;
- case DT_DIR: return S_IFDIR;
- case DT_LNK: return S_IFLNK;
- case DT_BLK: return S_IFBLK;
- case DT_CHR: return S_IFCHR;
- case DT_FIFO: return S_IFIFO;
- case DT_SOCK: return S_IFSOCK;
- }
-#endif
- return -1;
-}
-
-static PyObject *_listdir(char *path, int pathlen, int keepstat, char *skip)
-{
- PyObject *list, *elem, *stat, *ret = NULL;
- char fullpath[PATH_MAX + 10];
- int kind, err;
- struct stat st;
- struct dirent *ent;
- DIR *dir;
-#ifdef AT_SYMLINK_NOFOLLOW
- int dfd = -1;
-#endif
-
- if (pathlen >= PATH_MAX) {
- PyErr_SetString(PyExc_ValueError, "path too long");
- goto error_value;
- }
- strncpy(fullpath, path, PATH_MAX);
- fullpath[pathlen] = '/';
-
-#ifdef AT_SYMLINK_NOFOLLOW
- dfd = open(path, O_RDONLY);
- if (dfd == -1) {
- PyErr_SetFromErrnoWithFilename(PyExc_OSError, path);
- goto error_value;
- }
- dir = fdopendir(dfd);
-#else
- dir = opendir(path);
-#endif
- if (!dir) {
- PyErr_SetFromErrnoWithFilename(PyExc_OSError, path);
- goto error_dir;
- }
-
- list = PyList_New(0);
- if (!list)
- goto error_list;
-
- while ((ent = readdir(dir))) {
- if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, ".."))
- continue;
-
- kind = entkind(ent);
- if (kind == -1 || keepstat) {
-#ifdef AT_SYMLINK_NOFOLLOW
- err = fstatat(dfd, ent->d_name, &st,
- AT_SYMLINK_NOFOLLOW);
-#else
- strncpy(fullpath + pathlen + 1, ent->d_name,
- PATH_MAX - pathlen);
- fullpath[PATH_MAX] = 0;
- err = lstat(fullpath, &st);
-#endif
- if (err == -1) {
- strncpy(fullpath + pathlen + 1, ent->d_name,
- PATH_MAX - pathlen);
- fullpath[PATH_MAX] = 0;
- PyErr_SetFromErrnoWithFilename(PyExc_OSError,
- fullpath);
- goto error;
- }
- kind = st.st_mode & S_IFMT;
- }
-
- /* quit early? */
- if (skip && kind == S_IFDIR && !strcmp(ent->d_name, skip)) {
- ret = PyList_New(0);
- goto error;
- }
-
- if (keepstat) {
- stat = PyObject_CallObject((PyObject *)&listdir_stat_type, NULL);
- if (!stat)
- goto error;
- memcpy(&((struct listdir_stat *)stat)->st, &st, sizeof(st));
- elem = Py_BuildValue("siN", ent->d_name, kind, stat);
- } else
- elem = Py_BuildValue("si", ent->d_name, kind);
- if (!elem)
- goto error;
-
- PyList_Append(list, elem);
- Py_DECREF(elem);
- }
-
- ret = list;
- Py_INCREF(ret);
-
-error:
- Py_DECREF(list);
-error_list:
- closedir(dir);
-error_dir:
-#ifdef AT_SYMLINK_NOFOLLOW
- close(dfd);
-#endif
-error_value:
- return ret;
-}
-
-#endif /* ndef _WIN32 */
-
-static PyObject *listdir(PyObject *self, PyObject *args, PyObject *kwargs)
-{
- PyObject *statobj = NULL; /* initialize - optional arg */
- PyObject *skipobj = NULL; /* initialize - optional arg */
- char *path, *skip = NULL;
- int wantstat, plen;
-
- static char *kwlist[] = {"path", "stat", "skip", NULL};
-
- if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s#|OO:listdir",
- kwlist, &path, &plen, &statobj, &skipobj))
- return NULL;
-
- wantstat = statobj && PyObject_IsTrue(statobj);
-
- if (skipobj && skipobj != Py_None) {
- skip = PyString_AsString(skipobj);
- if (!skip)
- return NULL;
- }
-
- return _listdir(path, plen, wantstat, skip);
-}
-
-#ifdef _WIN32
-static PyObject *posixfile(PyObject *self, PyObject *args, PyObject *kwds)
-{
- static char *kwlist[] = {"name", "mode", "buffering", NULL};
- PyObject *file_obj = NULL;
- char *name = NULL;
- char *mode = "rb";
- DWORD access = 0;
- DWORD creation;
- HANDLE handle;
- int fd, flags = 0;
- int bufsize = -1;
- char m0, m1, m2;
- char fpmode[4];
- int fppos = 0;
- int plus;
- FILE *fp;
-
- if (!PyArg_ParseTupleAndKeywords(args, kwds, "et|si:posixfile", kwlist,
- Py_FileSystemDefaultEncoding,
- &name, &mode, &bufsize))
- return NULL;
-
- m0 = mode[0];
- m1 = m0 ? mode[1] : '\0';
- m2 = m1 ? mode[2] : '\0';
- plus = m1 == '+' || m2 == '+';
-
- fpmode[fppos++] = m0;
- if (m1 == 'b' || m2 == 'b') {
- flags = _O_BINARY;
- fpmode[fppos++] = 'b';
- }
- else
- flags = _O_TEXT;
- if (plus) {
- flags |= _O_RDWR;
- access = GENERIC_READ | GENERIC_WRITE;
- fpmode[fppos++] = '+';
- }
- fpmode[fppos++] = '\0';
-
- switch (m0) {
- case 'r':
- creation = OPEN_EXISTING;
- if (!plus) {
- flags |= _O_RDONLY;
- access = GENERIC_READ;
- }
- break;
- case 'w':
- creation = CREATE_ALWAYS;
- if (!plus) {
- access = GENERIC_WRITE;
- flags |= _O_WRONLY;
- }
- break;
- case 'a':
- creation = OPEN_ALWAYS;
- flags |= _O_APPEND;
- if (!plus) {
- flags |= _O_WRONLY;
- access = GENERIC_WRITE;
- }
- break;
- default:
- PyErr_Format(PyExc_ValueError,
- "mode string must begin with one of 'r', 'w', "
- "or 'a', not '%c'", m0);
- goto bail;
- }
-
- handle = CreateFile(name, access,
- FILE_SHARE_READ | FILE_SHARE_WRITE |
- FILE_SHARE_DELETE,
- NULL,
- creation,
- FILE_ATTRIBUTE_NORMAL,
- 0);
-
- if (handle == INVALID_HANDLE_VALUE) {
- PyErr_SetFromWindowsErrWithFilename(GetLastError(), name);
- goto bail;
- }
-
- fd = _open_osfhandle((intptr_t) handle, flags);
- if (fd == -1) {
- CloseHandle(handle);
- PyErr_SetFromErrnoWithFilename(PyExc_IOError, name);
- goto bail;
- }
-
- fp = _fdopen(fd, fpmode);
- if (fp == NULL) {
- _close(fd);
- PyErr_SetFromErrnoWithFilename(PyExc_IOError, name);
- goto bail;
- }
-
- file_obj = PyFile_FromFile(fp, name, mode, fclose);
- if (file_obj == NULL) {
- fclose(fp);
- goto bail;
- }
-
- PyFile_SetBufSize(file_obj, bufsize);
-bail:
- PyMem_Free(name);
- return file_obj;
-}
-#endif
-
-static char osutil_doc[] = "Native operating system services.";
-
-static PyMethodDef methods[] = {
- {"listdir", (PyCFunction)listdir, METH_VARARGS | METH_KEYWORDS,
- "list a directory\n"},
-#ifdef _WIN32
- {"posixfile", (PyCFunction)posixfile, METH_VARARGS | METH_KEYWORDS,
- "Open a file with POSIX-like semantics.\n"
-"On error, this function may raise either a WindowsError or an IOError."},
-#endif
- {NULL, NULL}
-};
-
-PyMODINIT_FUNC initosutil(void)
-{
- if (PyType_Ready(&listdir_stat_type) == -1)
- return;
-
- Py_InitModule3("osutil", methods, osutil_doc);
-}