##// END OF EJS Templates
tests: correct quoting of double quotes in here documents used to write hooks...
tests: correct quoting of double quotes in here documents used to write hooks Some shells, e.g. ksh89, will emit \" in a here document as ", while others will emit \". To be sure of getting \", we specify \\". This gets test-commit-amend.t and test-largefiles.t working on AIX.

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r16695:0a0933d3 default
r17462:8085fed2 stable
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diffhelpers.c
197 lines | 4.7 KiB | text/x-c | CLexer
Bryan O'Sullivan
Add Chris Mason's mpatch library....
r4897 /*
* diffhelpers.c - helper routines for mpatch
*
* Copyright 2007 Chris Mason <chris.mason@oracle.com>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License v2, incorporated herein by reference.
*/
#include <Python.h>
#include <stdlib.h>
#include <string.h>
Renato Cunha
diffhelpers.c: Added support for py3k....
r11363 #include "util.h"
Bryan O'Sullivan
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r4897 static char diffhelpers_doc[] = "Efficient diff parsing";
static PyObject *diffhelpers_Error;
/* fixup the last lines of a and b when the patch has no newline at eof */
static void _fix_newline(PyObject *hunk, PyObject *a, PyObject *b)
{
Adrian Buehlmann
diffhelpers: use Py_ssize_t in _fix_newline()...
r16693 Py_ssize_t hunksz = PyList_Size(hunk);
Bryan O'Sullivan
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r4897 PyObject *s = PyList_GET_ITEM(hunk, hunksz-1);
Renato Cunha
diffhelpers.c: Added support for py3k....
r11363 char *l = PyBytes_AsString(s);
Adrian Buehlmann
diffhelpers: use Py_ssize_t in _fix_newline()...
r16693 Py_ssize_t alen = PyList_Size(a);
Py_ssize_t blen = PyList_Size(b);
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r4897 char c = l[0];
Patrick Mezard
diffhelpers: fix variable declaration for MSVC (not C99)
r10146 PyObject *hline;
Adrian Buehlmann
diffhelpers: use Py_ssize_t in _fix_newline()...
r16693 Py_ssize_t sz = PyBytes_GET_SIZE(s);
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r4897
Patrick Mezard
diffhelpers: fix variable declaration for MSVC (not C99)
r10146 if (sz > 1 && l[sz-2] == '\r')
/* tolerate CRLF in last line */
sz -= 1;
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r11363
hline = PyBytes_FromStringAndSize(l, sz-1);
Patrick Mezard
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r10146
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r4897 if (c == ' ' || c == '+') {
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r11363 PyObject *rline = PyBytes_FromStringAndSize(l + 1, sz - 2);
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r4897 PyList_SetItem(b, blen-1, rline);
}
if (c == ' ' || c == '-') {
Py_INCREF(hline);
PyList_SetItem(a, alen-1, hline);
}
PyList_SetItem(hunk, hunksz-1, hline);
}
/* python callable form of _fix_newline */
static PyObject *
fix_newline(PyObject *self, PyObject *args)
{
PyObject *hunk, *a, *b;
if (!PyArg_ParseTuple(args, "OOO", &hunk, &a, &b))
return NULL;
_fix_newline(hunk, a, b);
return Py_BuildValue("l", 0);
}
Adrian Buehlmann
diffhelpers: use Py_ssize_t in addlines()...
r16694 #if (PY_VERSION_HEX < 0x02050000)
static const char *addlines_format = "OOiiOO";
#else
static const char *addlines_format = "OOnnOO";
#endif
Bryan O'Sullivan
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r4897 /*
* read lines from fp into the hunk. The hunk is parsed into two arrays
* a and b. a gets the old state of the text, b gets the new state
* The control char from the hunk is saved when inserting into a, but not b
* (for performance while deleting files)
*/
static PyObject *
addlines(PyObject *self, PyObject *args)
{
PyObject *fp, *hunk, *a, *b, *x;
Adrian Buehlmann
diffhelpers: use Py_ssize_t in addlines()...
r16694 Py_ssize_t i;
Py_ssize_t lena, lenb;
Py_ssize_t num;
Py_ssize_t todoa, todob;
Bryan O'Sullivan
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r4897 char *s, c;
PyObject *l;
Adrian Buehlmann
diffhelpers: use Py_ssize_t in addlines()...
r16694 if (!PyArg_ParseTuple(args, addlines_format,
&fp, &hunk, &lena, &lenb, &a, &b))
Bryan O'Sullivan
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r4897 return NULL;
Matt Mackall
many, many trivial check-code fixups
r10282 while (1) {
Bryan O'Sullivan
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r4897 todoa = lena - PyList_Size(a);
todob = lenb - PyList_Size(b);
num = todoa > todob ? todoa : todob;
if (num == 0)
break;
Matt Mackall
many, many trivial check-code fixups
r10282 for (i = 0; i < num; i++) {
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r4897 x = PyFile_GetLine(fp, 0);
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r11363 s = PyBytes_AsString(x);
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r4897 c = *s;
if (strcmp(s, "\\ No newline at end of file\n") == 0) {
_fix_newline(hunk, a, b);
continue;
}
Hollis Blanchard
Handle patches with misformatted empty lines...
r5483 if (c == '\n') {
/* Some patches may be missing the control char
* on empty lines. Supply a leading space. */
Py_DECREF(x);
Renato Cunha
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r11363 x = PyBytes_FromString(" \n");
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r5483 }
Bryan O'Sullivan
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r4897 PyList_Append(hunk, x);
if (c == '+') {
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r11363 l = PyBytes_FromString(s + 1);
Bryan O'Sullivan
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r4897 PyList_Append(b, l);
Py_DECREF(l);
} else if (c == '-') {
PyList_Append(a, x);
} else {
Renato Cunha
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r11363 l = PyBytes_FromString(s + 1);
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r4897 PyList_Append(b, l);
Py_DECREF(l);
PyList_Append(a, x);
}
Py_DECREF(x);
}
}
return Py_BuildValue("l", 0);
}
/*
* compare the lines in a with the lines in b. a is assumed to have
* a control char at the start of each line, this char is ignored in the
* compare
*/
static PyObject *
testhunk(PyObject *self, PyObject *args)
{
PyObject *a, *b;
long bstart;
Adrian Buehlmann
diffhelpers: use Py_ssize_t in testhunk()...
r16695 Py_ssize_t alen, blen;
Py_ssize_t i;
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r4897 char *sa, *sb;
if (!PyArg_ParseTuple(args, "OOl", &a, &b, &bstart))
return NULL;
alen = PyList_Size(a);
blen = PyList_Size(b);
Matt Mackall
diffhelpers: harden testhunk
r16651 if (alen > blen - bstart || bstart < 0) {
Bryan O'Sullivan
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r4897 return Py_BuildValue("l", -1);
}
Matt Mackall
many, many trivial check-code fixups
r10282 for (i = 0; i < alen; i++) {
Renato Cunha
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r11363 sa = PyBytes_AsString(PyList_GET_ITEM(a, i));
sb = PyBytes_AsString(PyList_GET_ITEM(b, i + bstart));
Matt Mackall
many, many trivial check-code fixups
r10282 if (strcmp(sa + 1, sb) != 0)
Bryan O'Sullivan
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r4897 return Py_BuildValue("l", -1);
}
return Py_BuildValue("l", 0);
}
static PyMethodDef methods[] = {
{"addlines", addlines, METH_VARARGS, "add lines to a hunk\n"},
{"fix_newline", fix_newline, METH_VARARGS, "fixup newline counters\n"},
{"testhunk", testhunk, METH_VARARGS, "test lines in a hunk\n"},
{NULL, NULL}
};
Renato Cunha
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r11363 #ifdef IS_PY3K
static struct PyModuleDef diffhelpers_module = {
PyModuleDef_HEAD_INIT,
"diffhelpers",
diffhelpers_doc,
-1,
methods
};
PyMODINIT_FUNC PyInit_diffhelpers(void)
{
PyObject *m;
m = PyModule_Create(&diffhelpers_module);
if (m == NULL)
return NULL;
diffhelpers_Error = PyErr_NewException("diffhelpers.diffhelpersError",
NULL, NULL);
Py_INCREF(diffhelpers_Error);
PyModule_AddObject(m, "diffhelpersError", diffhelpers_Error);
return m;
}
#else
Bryan O'Sullivan
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r4897 PyMODINIT_FUNC
initdiffhelpers(void)
{
Py_InitModule3("diffhelpers", methods, diffhelpers_doc);
diffhelpers_Error = PyErr_NewException("diffhelpers.diffhelpersError",
NULL, NULL);
}
Renato Cunha
diffhelpers.c: Added support for py3k....
r11363 #endif
Bryan O'Sullivan
Add Chris Mason's mpatch library....
r4897