*
* This applies patches on top of some (arbitrary) version of the SCM.
*
- * NOTE! It does all its work in the index file, and only cares about
- * the files in the working directory if you tell it to "merge" the
- * patch apply.
- *
- * Even when merging it always takes the source from the index, and
- * uses the working tree as a "branch" for a 3-way merge.
*/
#include <ctype.h>
-
+#include <fnmatch.h>
#include "cache.h"
-// We default to the merge behaviour, since that's what most people would
-// expect.
-//
// --check turns on checking that the working tree matches the
// files that are being modified, but doesn't apply the patch
// --stat does just a diffstat, and doesn't actually apply
// --show-files shows the directory changes
//
-static int merge_patch = 1;
static int check_index = 0;
static int write_index = 0;
static int diffstat = 0;
static int apply = 1;
static int show_files = 0;
static const char apply_usage[] =
-"git-apply [--
no-merge] [--stat] [--summary] [--check] [--index] [--apply] [--show-files] <patch>...";
+"git-apply [--stat] [--summary] [--check] [--index] [--apply] [--show-files] <patch>...";
/*
* For "diff-stat" like behaviour, we keep track of the biggest change
default:
continue;
case '\n':
- break;
+ return NULL;
case '\t': case ' ':
second = name+len;
for (;;) {
struct fragment dummy;
if (parse_fragment_header(line, len, &dummy) < 0)
continue;
- error("patch fragment without header at line %d: %.*s", linenr, len-1, line);
+ error("patch fragment without header at line %d: %.*s", linenr, (int)len-1, line);
}
if (size < len + 6)
added++;
newlines--;
break;
- /* We allow "\ No newline at end of file" */
+
+ /* We allow "\ No newline at end of file". Depending
+ * on locale settings when the patch was produced we
+ * don't know what this line looks like. The only
+ * thing we do know is that it begins with "\ ".
+ * Checking for 12 is just for sanity check -- any
+ * l10n of "\ No newline..." is at least that long.
+ */
case '\\':
- if (len < 12 || memcmp(line, "\\ No newline", 12))
+ if (len < 12 || memcmp(line, "\\ ", 2))
return -1;
break;
}
* it in the above loop because we hit oldlines == newlines == 0
* before seeing it.
*/
- if (12 < size && !memcmp(line, "\\ No newline", 12))
+ if (12 < size && !memcmp(line, "\\ ", 2))
offset += linelen(line, size);
patch->lines_added += added;
return offset;
}
+static inline int metadata_changes(struct patch *patch)
+{
+ return patch->is_rename > 0 ||
+ patch->is_copy > 0 ||
+ patch->is_new > 0 ||
+ patch->is_delete ||
+ (patch->old_mode && patch->new_mode &&
+ patch->old_mode != patch->new_mode);
+}
+
static int parse_chunk(char *buffer, unsigned long size, struct patch *patch)
{
int hdrsize, patchsize;
patchsize = parse_single_patch(buffer + offset + hdrsize, size - offset - hdrsize, patch);
+ if (!patchsize && !metadata_changes(patch))
+ die("patch with only garbage at line %d", linenr);
+
return offset + hdrsize + patchsize;
}
static void show_stats(struct patch *patch)
{
+ const char *prefix = "";
char *name = patch->new_name;
int len, max, add, del, total;
max = max_len;
if (max > 50)
max = 50;
- if (len > max)
+ if (len > max) {
+ char *slash;
+ prefix = "...";
+ max -= 3;
name += len - max;
+ slash = strchr(name, '/');
+ if (slash)
+ name = slash;
+ }
len = max;
/*
add = (add * max + max_change / 2) / max_change;
del = total - add;
}
- printf(" %-*s |%5d %.*s%.*s\n",
+ printf(" %s%-*s |%5d %.*s%.*s\n", prefix,
len, name, patch->lines_added + patch->lines_deleted,
add, pluses, del, minuses);
}
while (frag) {
if (apply_one_fragment(desc, frag) < 0)
- return error("patch failed: %s:%d", patch->old_name, frag->oldpos);
+ return error("patch failed: %s:%ld", patch->old_name, frag->oldpos);
frag = frag->next;
}
return 0;
if (old_name) {
int changed;
+ int stat_ret = lstat(old_name, &st);
- if (lstat(old_name, &st) < 0)
- return error("%s: %s", old_name, strerror(errno));
if (check_index) {
int pos = cache_name_pos(old_name, strlen(old_name));
if (pos < 0)
- return error("%s: does not exist in index", old_name);
+ return error("%s: does not exist in index",
+ old_name);
+ if (stat_ret < 0) {
+ struct checkout costate;
+ if (errno != ENOENT)
+ return error("%s: %s", old_name,
+ strerror(errno));
+ /* checkout */
+ costate.base_dir = "";
+ costate.base_dir_len = 0;
+ costate.force = 0;
+ costate.quiet = 0;
+ costate.not_new = 0;
+ costate.refresh_cache = 1;
+ if (checkout_entry(active_cache[pos],
+ &costate) ||
+ lstat(old_name, &st))
+ return -1;
+ }
+
changed = ce_match_stat(active_cache[pos], &st);
if (changed)
- return error("%s: does not match index", old_name);
+ return error("%s: does not match index",
+ old_name);
}
+ else if (stat_ret < 0)
+ return error("%s: %s", old_name, strerror(errno));
+
if (patch->is_new < 0)
patch->is_new = 0;
st.st_mode = ntohl(create_ce_mode(st.st_mode));
return error("%s: already exists in working directory", new_name);
if (errno != ENOENT)
return error("%s: %s", new_name, strerror(errno));
- if (!patch->new_mode)
- patch->new_mode = S_IFREG | 0644;
+ if (!patch->new_mode) {
+ if (patch->is_new)
+ patch->new_mode = S_IFREG | 0644;
+ else
+ patch->new_mode = patch->old_mode;
+ }
}
if (new_name && old_name) {
create_file(patch);
}
-static void write_out_results(struct patch *list)
+static void write_out_results(struct patch *list, int skipped_patch)
{
- if (!list)
+ if (!list && !skipped_patch)
die("No changes");
while (list) {
static struct cache_file cache_file;
+static struct excludes {
+ struct excludes *next;
+ const char *path;
+} *excludes;
+
+static int use_patch(struct patch *p)
+{
+ const char *pathname = p->new_name ? p->new_name : p->old_name;
+ struct excludes *x = excludes;
+ while (x) {
+ if (fnmatch(x->path, pathname, 0) == 0)
+ return 0;
+ x = x->next;
+ }
+ return 1;
+}
+
static int apply_patch(int fd)
{
int newfd;
unsigned long offset, size;
char *buffer = read_patch_file(fd, &size);
struct patch *list = NULL, **listp = &list;
+ int skipped_patch = 0;
if (!buffer)
return -1;
nr = parse_chunk(buffer + offset, size, patch);
if (nr < 0)
break;
- patch_stats(patch);
- *listp = patch;
- listp = &patch->next;
+ if (use_patch(patch)) {
+ patch_stats(patch);
+ *listp = patch;
+ listp = &patch->next;
+ } else {
+ /* perhaps free it a bit better? */
+ free(patch);
+ skipped_patch++;
+ }
offset += nr;
size -= nr;
}
exit(1);
if (apply)
- write_out_results(list);
+ write_out_results(list, skipped_patch);
if (write_index) {
if (write_cache(newfd, active_cache, active_nr) ||
read_stdin = 0;
continue;
}
- /* NEEDSWORK: this does not do anything at this moment. */
- if (!strcmp(arg, "--no-merge")) {
- merge_patch = 0;
+ if (!strncmp(arg, "--exclude=", 10)) {
+ struct excludes *x = xmalloc(sizeof(*x));
+ x->path = arg + 10;
+ x->next = excludes;
+ excludes = x;
continue;
}
if (!strcmp(arg, "--stat")) {
projects / git.git / blobdiff