/*
* Trim down common substring at the end of the buffers,
- * but leave at least ctx lines at the end.
+ * but end on a complete line.
*/
-static void trim_common_tail(mmfile_t *a, mmfile_t *b, long ctx)
+static void trim_common_tail(mmfile_t *a, mmfile_t *b)
{
const int blk = 1024;
long trimmed = 0, recovered = 0;
char *bp = b->ptr + b->size;
long smaller = (a->size < b->size) ? a->size : b->size;
- if (ctx)
- return;
-
while (blk + trimmed <= smaller && !memcmp(ap - blk, bp - blk, blk)) {
trimmed += blk;
ap -= blk;
mmfile_t a = *mf1;
mmfile_t b = *mf2;
- trim_common_tail(&a, &b, xecfg->ctxlen);
+ if (mf1->size > MAX_XDIFF_SIZE || mf2->size > MAX_XDIFF_SIZE)
+ return -1;
+
+ if (!xecfg->ctxlen && !(xecfg->flags & XDL_EMIT_FUNCCONTEXT))
+ trim_common_tail(&a, &b);
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)
+ xpparam_t const *xpp, xdemitconf_t const *xecfg)
{
int ret;
struct xdiff_emit_state state;
+ xdemitcb_t ecb;
memset(&state, 0, sizeof(state));
state.consume = fn;
state.consume_callback_data = consume_callback_data;
- xecb->outf = xdiff_outf;
- xecb->priv = &state;
+ memset(&ecb, 0, sizeof(ecb));
+ ecb.outf = xdiff_outf;
+ ecb.priv = &state;
strbuf_init(&state.remainder, 0);
- ret = xdi_diff(mf1, mf2, xpp, xecfg, xecb);
+ ret = xdi_diff(mf1, mf2, xpp, xecfg, &ecb);
strbuf_release(&state.remainder);
return ret;
}
-struct xdiff_emit_hunk_state {
- xdiff_emit_hunk_consume_fn consume;
- void *consume_callback_data;
-};
-
-static int process_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,
- xdemitconf_t const *xecfg)
-{
- long s1, s2, same, p_next, t_next;
- xdchange_t *xch, *xche;
- struct xdiff_emit_hunk_state *state = ecb->priv;
- xdiff_emit_hunk_consume_fn fn = state->consume;
- void *consume_callback_data = state->consume_callback_data;
-
- for (xch = xscr; xch; xch = xche->next) {
- xche = xdl_get_hunk(xch, xecfg);
-
- s1 = XDL_MAX(xch->i1 - xecfg->ctxlen, 0);
- s2 = XDL_MAX(xch->i2 - xecfg->ctxlen, 0);
- same = s2 + XDL_MAX(xch->i1 - s1, 0);
- p_next = xche->i1 + xche->chg1;
- t_next = xche->i2 + xche->chg2;
-
- fn(consume_callback_data, same, p_next, t_next);
- }
- return 0;
-}
-
-int xdi_diff_hunks(mmfile_t *mf1, mmfile_t *mf2,
- xdiff_emit_hunk_consume_fn fn, void *consume_callback_data,
- xpparam_t const *xpp, xdemitconf_t *xecfg)
-{
- struct xdiff_emit_hunk_state state;
- xdemitcb_t ecb;
-
- memset(&state, 0, sizeof(state));
- memset(&ecb, 0, sizeof(ecb));
- state.consume = fn;
- state.consume_callback_data = consume_callback_data;
- xecfg->emit_func = (void (*)())process_diff;
- ecb.priv = &state;
- return xdi_diff(mf1, mf2, xpp, xecfg, &ecb);
-}
-
int read_mmfile(mmfile_t *ptr, const char *filename)
{
struct stat st;
return error("Could not open %s", filename);
sz = xsize_t(st.st_size);
ptr->ptr = xmalloc(sz ? sz : 1);
- if (sz && fread(ptr->ptr, sz, 1, f) != 1)
+ if (sz && fread(ptr->ptr, sz, 1, f) != 1) {
+ fclose(f);
return error("Could not read %s", filename);
+ }
fclose(f);
ptr->size = sz;
return 0;
}
+void read_mmblob(mmfile_t *ptr, const struct object_id *oid)
+{
+ unsigned long size;
+ enum object_type type;
+
+ if (!oidcmp(oid, &null_oid)) {
+ ptr->ptr = xstrdup("");
+ ptr->size = 0;
+ return;
+ }
+
+ ptr->ptr = read_sha1_file(oid->hash, &type, &size);
+ if (!ptr->ptr || type != OBJ_BLOB)
+ die("unable to read blob object %s", oid_to_hex(oid));
+ ptr->size = size;
+}
+
#define FIRST_FEW_BYTES 8000
int buffer_is_binary(const char *ptr, unsigned long size)
{
static long ff_regexp(const char *line, long len,
char *buffer, long buffer_size, void *priv)
{
- char *line_buffer;
struct ff_regs *regs = priv;
regmatch_t pmatch[2];
int i;
- int result = -1;
+ int result;
/* Exclude terminating newline (and cr) from matching */
if (len > 0 && line[len-1] == '\n') {
len--;
}
- line_buffer = xstrndup(line, len); /* make NUL terminated */
-
for (i = 0; i < regs->nr; i++) {
struct ff_reg *reg = regs->array + i;
- if (!regexec(®->re, line_buffer, 2, pmatch, 0)) {
+ if (!regexec_buf(®->re, line, len, 2, pmatch, 0)) {
if (reg->negate)
- goto fail;
+ return -1;
break;
}
}
if (regs->nr <= i)
- goto fail;
+ return -1;
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])))
- result--;
+ while (result > 0 && (isspace(line[result - 1])))
+ result--;
memcpy(buffer, line, result);
- fail:
- free(line_buffer);
return result;
}
for (i = 0, regs->nr = 1; value[i]; i++)
if (value[i] == '\n')
regs->nr++;
- regs->array = xmalloc(regs->nr * sizeof(struct ff_reg));
+ ALLOC_ARRAY(regs->array, regs->nr);
for (i = 0; i < regs->nr; i++) {
struct ff_reg *reg = regs->array + i;
const char *ep = strchr(value, '\n'), *expression;
}
}
+void xdiff_clear_find_func(xdemitconf_t *xecfg)
+{
+ if (xecfg->find_func) {
+ int i;
+ struct ff_regs *regs = xecfg->find_func_priv;
+
+ for (i = 0; i < regs->nr; i++)
+ regfree(®s->array[i].re);
+ free(regs->array);
+ free(regs);
+ xecfg->find_func = NULL;
+ xecfg->find_func_priv = NULL;
+ }
+}
+
int git_xmerge_style = -1;
int git_xmerge_config(const char *var, const char *value, void *cb)
{
- if (!strcasecmp(var, "merge.conflictstyle")) {
+ if (!strcmp(var, "merge.conflictstyle")) {
if (!value)
die("'%s' is not a boolean", var);
if (!strcmp(value, "diff3"))