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-rw-r--r--diffcore-pickaxe.c192
1 files changed, 83 insertions, 109 deletions
diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c
index ea03b91..380a837 100644
--- a/diffcore-pickaxe.c
+++ b/diffcore-pickaxe.c
@@ -6,6 +6,47 @@
#include "diff.h"
#include "diffcore.h"
#include "xdiff-interface.h"
+#include "kwset.h"
+
+typedef int (*pickaxe_fn)(struct diff_filepair *p, struct diff_options *o, regex_t *regexp, kwset_t kws);
+
+static void pickaxe(struct diff_queue_struct *q, struct diff_options *o,
+ regex_t *regexp, kwset_t kws, pickaxe_fn fn)
+{
+ int i;
+ struct diff_queue_struct outq;
+
+ DIFF_QUEUE_CLEAR(&outq);
+
+ if (o->pickaxe_opts & DIFF_PICKAXE_ALL) {
+ /* Showing the whole changeset if needle exists */
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ if (fn(p, o, regexp, kws))
+ return; /* do not munge the queue */
+ }
+
+ /*
+ * Otherwise we will clear the whole queue by copying
+ * the empty outq at the end of this function, but
+ * first clear the current entries in the queue.
+ */
+ for (i = 0; i < q->nr; i++)
+ diff_free_filepair(q->queue[i]);
+ } else {
+ /* Showing only the filepairs that has the needle */
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ if (fn(p, o, regexp, kws))
+ diff_q(&outq, p);
+ else
+ diff_free_filepair(p);
+ }
+ }
+
+ free(q->queue);
+ *q = outq;
+}
struct diffgrep_cb {
regex_t *regexp;
@@ -44,7 +85,8 @@ static void fill_one(struct diff_filespec *one,
}
}
-static int diff_grep(struct diff_filepair *p, regex_t *regexp, struct diff_options *o)
+static int diff_grep(struct diff_filepair *p, struct diff_options *o,
+ regex_t *regexp, kwset_t kws)
{
regmatch_t regmatch;
struct userdiff_driver *textconv_one = NULL;
@@ -94,12 +136,8 @@ static int diff_grep(struct diff_filepair *p, regex_t *regexp, struct diff_optio
static void diffcore_pickaxe_grep(struct diff_options *o)
{
- struct diff_queue_struct *q = &diff_queued_diff;
- int i, has_changes, err;
+ int err;
regex_t regex;
- struct diff_queue_struct outq;
- outq.queue = NULL;
- outq.nr = outq.alloc = 0;
err = regcomp(&regex, o->pickaxe, REG_EXTENDED | REG_NEWLINE);
if (err) {
@@ -109,51 +147,21 @@ static void diffcore_pickaxe_grep(struct diff_options *o)
die("invalid log-grep regex: %s", errbuf);
}
- if (o->pickaxe_opts & DIFF_PICKAXE_ALL) {
- /* Showing the whole changeset if needle exists */
- for (i = has_changes = 0; !has_changes && i < q->nr; i++) {
- struct diff_filepair *p = q->queue[i];
- if (diff_grep(p, &regex, o))
- has_changes++;
- }
- if (has_changes)
- return; /* do not munge the queue */
-
- /*
- * Otherwise we will clear the whole queue by copying
- * the empty outq at the end of this function, but
- * first clear the current entries in the queue.
- */
- for (i = 0; i < q->nr; i++)
- diff_free_filepair(q->queue[i]);
- } else {
- /* Showing only the filepairs that has the needle */
- for (i = 0; i < q->nr; i++) {
- struct diff_filepair *p = q->queue[i];
- if (diff_grep(p, &regex, o))
- diff_q(&outq, p);
- else
- diff_free_filepair(p);
- }
- }
+ pickaxe(&diff_queued_diff, o, &regex, NULL, diff_grep);
regfree(&regex);
-
- free(q->queue);
- *q = outq;
return;
}
-static unsigned int contains(struct diff_filespec *one,
- const char *needle, unsigned long len,
- regex_t *regexp)
+static unsigned int contains(struct diff_filespec *one, struct diff_options *o,
+ regex_t *regexp, kwset_t kws)
{
unsigned int cnt;
unsigned long sz;
const char *data;
- if (diff_populate_filespec(one, 0))
+ if (!o->pickaxe[0])
return 0;
- if (!len)
+ if (diff_populate_filespec(one, 0))
return 0;
sz = one->size;
@@ -175,11 +183,15 @@ static unsigned int contains(struct diff_filespec *one,
} else { /* Classic exact string match */
while (sz) {
- const char *found = memmem(data, sz, needle, len);
- if (!found)
+ struct kwsmatch kwsm;
+ size_t offset = kwsexec(kws, data, sz, &kwsm);
+ const char *found;
+ if (offset == -1)
break;
- sz -= found - data + len;
- data = found + len;
+ else
+ found = data + offset;
+ sz -= found - data + kwsm.size[0];
+ data = found + kwsm.size[0];
cnt++;
}
}
@@ -187,16 +199,31 @@ static unsigned int contains(struct diff_filespec *one,
return cnt;
}
+static int has_changes(struct diff_filepair *p, struct diff_options *o,
+ regex_t *regexp, kwset_t kws)
+{
+ if (!DIFF_FILE_VALID(p->one)) {
+ if (!DIFF_FILE_VALID(p->two))
+ return 0; /* ignore unmerged */
+ /* created */
+ return contains(p->two, o, regexp, kws) != 0;
+ }
+ if (!DIFF_FILE_VALID(p->two))
+ return contains(p->one, o, regexp, kws) != 0;
+ if (!diff_unmodified_pair(p)) {
+ return contains(p->one, o, regexp, kws) !=
+ contains(p->two, o, regexp, kws);
+ }
+ return 0;
+}
+
static void diffcore_pickaxe_count(struct diff_options *o)
{
const char *needle = o->pickaxe;
int opts = o->pickaxe_opts;
- struct diff_queue_struct *q = &diff_queued_diff;
unsigned long len = strlen(needle);
- int i, has_changes;
regex_t regex, *regexp = NULL;
- struct diff_queue_struct outq;
- DIFF_QUEUE_CLEAR(&outq);
+ kwset_t kws = NULL;
if (opts & DIFF_PICKAXE_REGEX) {
int err;
@@ -209,71 +236,18 @@ static void diffcore_pickaxe_count(struct diff_options *o)
die("invalid pickaxe regex: %s", errbuf);
}
regexp = &regex;
+ } else {
+ kws = kwsalloc(NULL);
+ kwsincr(kws, needle, len);
+ kwsprep(kws);
}
- if (opts & DIFF_PICKAXE_ALL) {
- /* Showing the whole changeset if needle exists */
- for (i = has_changes = 0; !has_changes && i < q->nr; i++) {
- struct diff_filepair *p = q->queue[i];
- if (!DIFF_FILE_VALID(p->one)) {
- if (!DIFF_FILE_VALID(p->two))
- continue; /* ignore unmerged */
- /* created */
- if (contains(p->two, needle, len, regexp))
- has_changes++;
- }
- else if (!DIFF_FILE_VALID(p->two)) {
- if (contains(p->one, needle, len, regexp))
- has_changes++;
- }
- else if (!diff_unmodified_pair(p) &&
- contains(p->one, needle, len, regexp) !=
- contains(p->two, needle, len, regexp))
- has_changes++;
- }
- if (has_changes)
- return; /* not munge the queue */
-
- /* otherwise we will clear the whole queue
- * by copying the empty outq at the end of this
- * function, but first clear the current entries
- * in the queue.
- */
- for (i = 0; i < q->nr; i++)
- diff_free_filepair(q->queue[i]);
- }
- else
- /* Showing only the filepairs that has the needle */
- for (i = 0; i < q->nr; i++) {
- struct diff_filepair *p = q->queue[i];
- has_changes = 0;
- if (!DIFF_FILE_VALID(p->one)) {
- if (!DIFF_FILE_VALID(p->two))
- ; /* ignore unmerged */
- /* created */
- else if (contains(p->two, needle, len, regexp))
- has_changes = 1;
- }
- else if (!DIFF_FILE_VALID(p->two)) {
- if (contains(p->one, needle, len, regexp))
- has_changes = 1;
- }
- else if (!diff_unmodified_pair(p) &&
- contains(p->one, needle, len, regexp) !=
- contains(p->two, needle, len, regexp))
- has_changes = 1;
-
- if (has_changes)
- diff_q(&outq, p);
- else
- diff_free_filepair(p);
- }
+ pickaxe(&diff_queued_diff, o, regexp, kws, has_changes);
if (opts & DIFF_PICKAXE_REGEX)
regfree(&regex);
-
- free(q->queue);
- *q = outq;
+ else
+ kwsfree(kws);
return;
}
generated by cgit v0.10.2-6-g49f6 at 2024-04-20 02:04:23 (GMT)