static int check_index = 0;
static int write_index = 0;
static int diffstat = 0;
+static int summary = 0;
static int check = 0;
static int apply = 1;
static int show_files = 0;
-static const char apply_usage[] = "git-apply [--stat] [--check] [--show-files] <patch>";
+static const char apply_usage[] = "git-apply [--stat] [--
summary] [--check] [--show-files] <patch>";
/*
* For "diff-stat" like behaviour, we keep track of the biggest change
unsigned int old_mode, new_mode;
int is_rename, is_copy, is_new, is_delete;
int lines_added, lines_deleted;
+ int score;
struct fragment *fragments;
char *result;
unsigned long resultsize;
static int gitdiff_similarity(const char *line, struct patch *patch)
{
+ if ((patch->score = strtoul(line, NULL, 10)) == ULONG_MAX)
+ patch->score = 0;
return 0;
}
static int gitdiff_dissimilarity(const char *line, struct patch *patch)
{
+ if ((patch->score = strtoul(line, NULL, 10)) == ULONG_MAX)
+ patch->score = 0;
return 0;
}
{ "new file mode ", gitdiff_newfile },
{ "copy from ", gitdiff_copysrc },
{ "copy to ", gitdiff_copydst },
+ { "rename old ", gitdiff_renamesrc },
+ { "rename new ", gitdiff_renamedst },
{ "rename from ", gitdiff_renamesrc },
{ "rename to ", gitdiff_renamedst },
{ "similarity index ", gitdiff_similarity },
*/
if (!memcmp("diff --git ", line, 11)) {
int git_hdr_len = parse_git_header(line, len, size, patch);
- if (git_hdr_len < 0)
+ if (git_hdr_len <= len)
continue;
- if (!patch->old_name && !patch->new_name)
- die("git diff header lacks filename information");
+ if (!patch->old_name && !patch->new_name) {
+ if (!patch->def_name)
+ die("git diff header lacks filename information (line %d)", linenr);
+ patch->old_name = patch->new_name = patch->def_name;
+ }
*hdrsize = git_hdr_len;
return offset;
}
if (patch->is_new != !oldlines)
return error("new file depends on old contents");
- if (patch->is_delete != !newlines)
- return error("deleted file still has contents");
+ if (patch->is_delete != !newlines) {
+ if (newlines)
+ return error("deleted file still has contents");
+ fprintf(stderr, "** warning: file %s becomes empty but is not deleted\n", patch->new_name);
+ }
/* Parse the thing.. */
line += len;
static void show_stats(struct patch *patch)
{
- char *name = patch->old_name;
+ char *name = patch->new_name;
int len, max, add, del, total;
if (!name)
- name = patch->new_name;
+ name = patch->old_name;
/*
* "scale" the filename
del = patch->lines_deleted;
total = add + del;
- total = (total * max + max_change / 2) / max_change;
- add = (add * max + max_change / 2) / max_change;
- del = total - add;
+ if (max_change > 0) {
+ total = (total * max + max_change / 2) / max_change;
+ add = (add * max + max_change / 2) / max_change;
+ del = total - add;
+ }
printf(" %-*s |%5d %.*s%.*s\n",
len, name, patch->lines_added + patch->lines_deleted,
add, pluses, del, minuses);
n = (i >> 1)+1;
if (i & 1)
n = -n;
- fprintf(stderr, "Fragment applied at offset %d\n", n);
return try;
}
int changed;
if (lstat(old_name, &st) < 0)
- return error("%s: %s\n", strerror(errno));
+ return error("%s: %s", old_name, strerror(errno));
if (check_index) {
int pos = cache_name_pos(old_name, strlen(old_name));
if (pos < 0)
}
if (patch->is_new < 0)
patch->is_new = 0;
+ st.st_mode = ntohl(create_ce_mode(st.st_mode));
if (!patch->old_mode)
patch->old_mode = st.st_mode;
if ((st.st_mode ^ patch->old_mode) & S_IFMT)
printf(" %d files changed, %d insertions(+), %d deletions(-)\n", files, adds, dels);
}
+static void show_file_mode_name(const char *newdelete, unsigned int mode, const char *name)
+{
+ if (mode)
+ printf(" %s mode %06o %s\n", newdelete, mode, name);
+ else
+ printf(" %s %s\n", newdelete, name);
+}
+
+static void show_mode_change(struct patch *p, int show_name)
+{
+ if (p->old_mode && p->new_mode && p->old_mode != p->new_mode) {
+ if (show_name)
+ printf(" mode change %06o => %06o %s\n",
+ p->old_mode, p->new_mode, p->new_name);
+ else
+ printf(" mode change %06o => %06o\n",
+ p->old_mode, p->new_mode);
+ }
+}
+
+static void show_rename_copy(struct patch *p)
+{
+ const char *renamecopy = p->is_rename ? "rename" : "copy";
+ const char *old, *new;
+
+ /* Find common prefix */
+ old = p->old_name;
+ new = p->new_name;
+ while (1) {
+ const char *slash_old, *slash_new;
+ slash_old = strchr(old, '/');
+ slash_new = strchr(new, '/');
+ if (!slash_old ||
+ !slash_new ||
+ slash_old - old != slash_new - new ||
+ memcmp(old, new, slash_new - new))
+ break;
+ old = slash_old + 1;
+ new = slash_new + 1;
+ }
+ /* p->old_name thru old is the common prefix, and old and new
+ * through the end of names are renames
+ */
+ if (old != p->old_name)
+ printf(" %s %.*s{%s => %s} (%d%%)\n", renamecopy,
+ old - p->old_name, p->old_name,
+ old, new, p->score);
+ else
+ printf(" %s %s => %s (%d%%)\n", renamecopy,
+ p->old_name, p->new_name, p->score);
+ show_mode_change(p, 0);
+}
+
+static void summary_patch_list(struct patch *patch)
+{
+ struct patch *p;
+
+ for (p = patch; p; p = p->next) {
+ if (p->is_new)
+ show_file_mode_name("create", p->new_mode, p->new_name);
+ else if (p->is_delete)
+ show_file_mode_name("delete", p->old_mode, p->old_name);
+ else {
+ if (p->is_rename || p->is_copy)
+ show_rename_copy(p);
+ else {
+ if (p->score) {
+ printf(" rewrite %s (%d%%)\n",
+ p->new_name, p->score);
+ show_mode_change(p, 0);
+ }
+ else
+ show_mode_change(p, 1);
+ }
+ }
+ }
+}
+
static void patch_stats(struct patch *patch)
{
int lines = patch->lines_added + patch->lines_deleted;
die("unable to add cache entry for %s", path);
}
+static void create_subdirectories(const char *path)
+{
+ int len = strlen(path);
+ char *buf = xmalloc(len + 1);
+ const char *slash = path;
+
+ while ((slash = strchr(slash+1, '/')) != NULL) {
+ len = slash - path;
+ memcpy(buf, path, len);
+ buf[len] = 0;
+ if (mkdir(buf, 0755) < 0) {
+ if (errno != EEXIST)
+ break;
+ }
+ }
+ free(buf);
+}
+
+/*
+ * We optimistically assume that the directories exist,
+ * which is true 99% of the time anyway. If they don't,
+ * we create them and try again.
+ */
+static int create_regular_file(const char *path, unsigned int mode)
+{
+ int ret = open(path, O_WRONLY | O_CREAT | O_TRUNC, mode);
+
+ if (ret < 0 && errno == ENOENT) {
+ create_subdirectories(path);
+ ret = open(path, O_WRONLY | O_CREAT | O_TRUNC, mode);
+ }
+ return ret;
+}
+
+static int create_symlink(const char *buf, const char *path)
+{
+ int ret = symlink(buf, path);
+
+ if (ret < 0 && errno == ENOENT) {
+ create_subdirectories(path);
+ ret = symlink(buf, path);
+ }
+ return ret;
+}
+
static void create_file(struct patch *patch)
{
const char *path = patch->new_name;
if (S_ISREG(mode)) {
int fd;
mode = (mode & 0100) ? 0777 : 0666;
- fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, mode);
+ fd = create_regular_file(path, mode);
if (fd < 0)
die("unable to create file %s (%s)", path, strerror(errno));
if (write(fd, buf, size) != size)
if (size && buf[size-1] == '\n')
size--;
buf[size] = 0;
- if (symlink(buf, path) < 0)
+ if (create_symlink(buf, path) < 0)
die("unable to write symlink %s", path);
add_index_file(path, mode, buf, size);
return;
static void write_out_results(struct patch *list)
{
+ if (!list)
+ die("No changes");
+
while (list) {
write_out_one_result(list);
list = list->next;
if (diffstat)
stat_patch_list(list);
+ if (summary)
+ summary_patch_list(list);
+
free(buffer);
return 0;
}
diffstat = 1;
continue;
}
+ if (!strcmp(arg, "--summary")) {
+ apply = 0;
+ summary = 1;
+ continue;
+ }
if (!strcmp(arg, "--check")) {
apply = 0;
check = 1;
check_index = 1;
continue;
}
+ if (!strcmp(arg, "--apply")) {
+ apply = 1;
+ continue;
+ }
if (!strcmp(arg, "--show-files")) {
show_files = 1;
continue;