#include "cache.h"
#include "xdiff-interface.h"
+#include "strbuf.h"
+
+struct xdiff_emit_state {
+ xdiff_emit_consume_fn consume;
+ void *consume_callback_data;
+ struct strbuf remainder;
+};
static int parse_num(char **cp_p, int *num_p)
{
unsigned long this_size;
ep = memchr(s, '\n', size);
this_size = (ep == NULL) ? size : (ep - s + 1);
- priv->consume(priv, s, this_size);
+ priv->consume(priv->consume_callback_data, s, this_size);
size -= this_size;
s += this_size;
}
}
-int xdiff_outf(void *priv_, mmbuffer_t *mb, int nbuf)
+static int xdiff_outf(void *priv_, mmbuffer_t *mb, int nbuf)
{
struct xdiff_emit_state *priv = priv_;
int i;
for (i = 0; i < nbuf; i++) {
if (mb[i].ptr[mb[i].size-1] != '\n') {
/* Incomplete line */
- priv->remainder = xrealloc(priv->remainder,
- priv->remainder_size +
- mb[i].size);
- memcpy(priv->remainder + priv->remainder_size,
- mb[i].ptr, mb[i].size);
- priv->remainder_size += mb[i].size;
+ strbuf_add(&priv->remainder, mb[i].ptr, mb[i].size);
continue;
}
/* we have a complete line */
- if (!priv->remainder) {
+ if (!priv->remainder.len) {
consume_one(priv, mb[i].ptr, mb[i].size);
continue;
}
- priv->remainder = xrealloc(priv->remainder,
- priv->remainder_size +
- mb[i].size);
- memcpy(priv->remainder + priv->remainder_size,
- mb[i].ptr, mb[i].size);
- consume_one(priv, priv->remainder,
- priv->remainder_size + mb[i].size);
- free(priv->remainder);
- priv->remainder = NULL;
- priv->remainder_size = 0;
+ strbuf_add(&priv->remainder, mb[i].ptr, mb[i].size);
+ consume_one(priv, priv->remainder.buf, priv->remainder.len);
+ strbuf_reset(&priv->remainder);
}
- if (priv->remainder) {
- consume_one(priv, priv->remainder, priv->remainder_size);
- free(priv->remainder);
- priv->remainder = NULL;
- priv->remainder_size = 0;
+ if (priv->remainder.len) {
+ consume_one(priv, priv->remainder.buf, priv->remainder.len);
+ strbuf_reset(&priv->remainder);
}
return 0;
}
return xdl_diff(&a, &b, xpp, xecfg, xecb);
}
+int xdi_diff_outf(mmfile_t *mf1, mmfile_t *mf2,
+ xdiff_emit_consume_fn fn, void *consume_callback_data,
+ xpparam_t const *xpp,
+ xdemitconf_t const *xecfg, xdemitcb_t *xecb)
+{
+ int ret;
+ struct xdiff_emit_state state;
+
+ memset(&state, 0, sizeof(state));
+ state.consume = fn;
+ state.consume_callback_data = consume_callback_data;
+ xecb->outf = xdiff_outf;
+ xecb->priv = &state;
+ strbuf_init(&state.remainder, 0);
+ ret = xdi_diff(mf1, mf2, xpp, xecfg, xecb);
+ strbuf_release(&state.remainder);
+ return ret;
+}
+
int read_mmfile(mmfile_t *ptr, const char *filename)
{
struct stat st;
if ((f = fopen(filename, "rb")) == NULL)
return error("Could not open %s", filename);
sz = xsize_t(st.st_size);
- ptr->ptr = xmalloc(sz);
- if (fread(ptr->ptr, sz, 1, f) != 1)
+ ptr->ptr = xmalloc(sz ? sz : 1);
+ if (sz && fread(ptr->ptr, sz, 1, f) != 1)
return error("Could not read %s", filename);
fclose(f);
ptr->size = sz;
static long ff_regexp(const char *line, long len,
char *buffer, long buffer_size, void *priv)
{
- char *line_buffer = xstrndup(line, len); /* make NUL terminated */
+ char *line_buffer;
struct ff_regs *regs = priv;
regmatch_t pmatch[2];
- int result = 0, i;
+ int i;
+ int result = -1;
+
+ /* Exclude terminating newline (and cr) from matching */
+ if (len > 0 && line[len-1] == '\n') {
+ if (len > 1 && line[len-2] == '\r')
+ len -= 2;
+ else
+ len--;
+ }
+
+ line_buffer = xstrndup(line, len); /* make NUL terminated */
for (i = 0; i < regs->nr; i++) {
struct ff_reg *reg = regs->array + i;
- if (reg->negate ^ !!regexec(®->re,
- line_buffer, 2, pmatch, 0)) {
- free(line_buffer);
- return -1;
+ if (!regexec(®->re, line_buffer, 2, pmatch, 0)) {
+ if (reg->negate)
+ goto fail;
+ break;
}
}
+ if (regs->nr <= i)
+ goto fail;
i = pmatch[1].rm_so >= 0 ? 1 : 0;
line += pmatch[i].rm_so;
result = pmatch[i].rm_eo - pmatch[i].rm_so;
if (result > buffer_size)
result = buffer_size;
else
- while (result > 0 && (isspace(line[result - 1]) ||
- line[result - 1] == '\n'))
+ while (result > 0 && (isspace(line[result - 1])))
result--;
memcpy(buffer, line, result);
+ fail:
free(line_buffer);
return result;
}
-void xdiff_set_find_func(xdemitconf_t *xecfg, const char *value)
+void xdiff_set_find_func(xdemitconf_t *xecfg, const char *value, int cflags)
{
int i;
struct ff_regs *regs;
expression = buffer = xstrndup(value, ep - value);
else
expression = value;
- if (regcomp(®->re, expression, 0))
+ if (regcomp(®->re, expression, cflags))
die("Invalid regexp to look for hunk header: %s", expression);
free(buffer);
value = ep + 1;
}
}
+
+int git_xmerge_style = -1;
+
+int git_xmerge_config(const char *var, const char *value, void *cb)
+{
+ if (!strcasecmp(var, "merge.conflictstyle")) {
+ if (!value)
+ die("'%s' is not a boolean", var);
+ if (!strcmp(value, "diff3"))
+ git_xmerge_style = XDL_MERGE_DIFF3;
+ else if (!strcmp(value, "merge"))
+ git_xmerge_style = 0;
+ else
+ die("unknown style '%s' given for '%s'",
+ value, var);
+ return 0;
+ }
+ return git_default_config(var, value, cb);
+}
+