![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
| author | Junio C Hamano <gitster@pobox.com> | |
| Sat, 3 Jan 2009 21:57:10 +0000 (13:57 -0800) | ||
| committer | Junio C Hamano <gitster@pobox.com> | |
| Sat, 3 Jan 2009 21:57:10 +0000 (13:57 -0800) |
* ap/maint-apply-modefix:
builtin-apply: prevent non-explicit permission changes
builtin-apply: prevent non-explicit permission changes
| 1 | 2 | |||
|---|---|---|---|---|
| builtin-apply.c | patch | | diff1 | | diff2 | | blob | history |
diff --combined builtin-apply.c
index 07244b0736047d6cfe67db7f059f7755906579f0,66437ed751e79593a9e8d3532d63d5b7afc17699..a8f75ed3ed411d8cf7a3ec9dfefef7407c50f447
--- 1/builtin-apply.c
--- 2/builtin-apply.c
+++ b/builtin-apply.c
#include "blob.h"
#include "delta.h"
#include "builtin.h"
+#include "string-list.h"
+#include "dir.h"
/*
* --check turns on checking that the working tree matches the
static int line_termination = '\n';
static unsigned long p_context = ULONG_MAX;
static const char apply_usage[] =
-"git-apply [--stat] [--numstat] [--summary] [--check] [--index] [--cached] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] [--reverse] [--reject] [--verbose] [-z] [-pNUM] [-CNUM] [--whitespace=<nowarn|warn|fix|error|error-all>] <patch>...";
+"git apply [--stat] [--numstat] [--summary] [--check] [--index] [--cached] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] [--reverse] [--reject] [--verbose] [-z] [-pNUM] [-CNUM] [--whitespace=<nowarn|warn|fix|error|error-all>] <patch>...";
static enum ws_error_action {
nowarn_ws_error,
static int squelch_whitespace_errors = 5;
static int applied_after_fixing_ws;
static const char *patch_input_file;
+static const char *root;
+static int root_len;
static void parse_whitespace_option(const char *option)
{
unsigned int is_binary:1;
unsigned int is_copy:1;
unsigned int is_rename:1;
+ unsigned int recount:1;
struct fragment *fragments;
char *result;
size_t resultsize;
struct line *line;
};
+/*
+ * Records filenames that have been touched, in order to handle
+ * the case where more than one patches touch the same file.
+ */
+
+static struct string_list fn_table;
+
static uint32_t hash_line(const char *cp, size_t len)
{
size_t i;
static void read_patch_file(struct strbuf *sb, int fd)
{
if (strbuf_read(sb, fd, 0) < 0)
- die("git-apply: read returned %s", strerror(errno));
+ die("git apply: read returned %s", strerror(errno));
/*
* Make sure that we have some slop in the buffer
const char *start = line;
if (*line == '"') {
- struct strbuf name;
+ struct strbuf name = STRBUF_INIT;
/*
* Proposed "new-style" GNU patch/diff format; see
* http://marc.theaimsgroup.com/?l=git&m=112927316408690&w=2
*/
- strbuf_init(&name, 0);
if (!unquote_c_style(&name, line, NULL)) {
char *cp;
*/
strbuf_remove(&name, 0, cp - name.buf);
free(def);
+ if (root)
+ strbuf_insert(&name, 0, root, root_len);
return strbuf_detach(&name, NULL);
}
}
free(def);
}
+ if (root) {
+ char *ret = xmalloc(root_len + len + 1);
+ strcpy(ret, root);
+ memcpy(ret + root_len, start, len);
+ ret[root_len + len] = '\0';
+ return ret;
+ }
+
return xmemdupz(start, len);
}
name = orig_name;
len = strlen(name);
if (isnull)
- die("git-apply: bad git-diff - expected /dev/null, got %s on line %d", name, linenr);
+ die("git apply: bad git-diff - expected /dev/null, got %s on line %d", name, linenr);
another = find_name(line, NULL, p_value, TERM_TAB);
if (!another || memcmp(another, name, len))
- die("git-apply: bad git-diff - inconsistent %s filename on line %d", oldnew, linenr);
+ die("git apply: bad git-diff - inconsistent %s filename on line %d", oldnew, linenr);
free(another);
return orig_name;
}
else {
/* expect "/dev/null" */
if (memcmp("/dev/null", line, 9) || line[9] != '\n')
- die("git-apply: bad git-diff - expected /dev/null on line %d", linenr);
+ die("git apply: bad git-diff - expected /dev/null on line %d", linenr);
return NULL;
}
}
memcpy(patch->new_sha1_prefix, line, len);
patch->new_sha1_prefix[len] = 0;
if (*ptr == ' ')
- patch->new_mode = patch->old_mode = strtoul(ptr+1, NULL, 8);
+ patch->old_mode = strtoul(ptr+1, NULL, 8);
return 0;
}
if (*line == '"') {
const char *cp;
- struct strbuf first;
- struct strbuf sp;
-
- strbuf_init(&first, 0);
- strbuf_init(&sp, 0);
+ struct strbuf first = STRBUF_INIT;
+ struct strbuf sp = STRBUF_INIT;
if (unquote_c_style(&first, line, &second))
goto free_and_fail1;
*/
for (second = name; second < line + llen; second++) {
if (*second == '"') {
- struct strbuf sp;
+ struct strbuf sp = STRBUF_INIT;
const char *np;
- strbuf_init(&sp, 0);
if (unquote_c_style(&sp, second, NULL))
goto free_and_fail2;
* the default name from the header.
*/
patch->def_name = git_header_name(line, len);
+ if (patch->def_name && root) {
+ char *s = xmalloc(root_len + strlen(patch->def_name) + 1);
+ strcpy(s, root);
+ strcpy(s + root_len, patch->def_name);
+ free(patch->def_name);
+ patch->def_name = s;
+ }
line += len;
size -= len;
return offset + ex;
}
+static void recount_diff(char *line, int size, struct fragment *fragment)
+{
+ int oldlines = 0, newlines = 0, ret = 0;
+
+ if (size < 1) {
+ warning("recount: ignore empty hunk");
+ return;
+ }
+
+ for (;;) {
+ int len = linelen(line, size);
+ size -= len;
+ line += len;
+
+ if (size < 1)
+ break;
+
+ switch (*line) {
+ case ' ': case '\n':
+ newlines++;
+ /* fall through */
+ case '-':
+ oldlines++;
+ continue;
+ case '+':
+ newlines++;
+ continue;
+ case '\\':
+ continue;
+ case '@':
+ ret = size < 3 || prefixcmp(line, "@@ ");
+ break;
+ case 'd':
+ ret = size < 5 || prefixcmp(line, "diff ");
+ break;
+ default:
+ ret = -1;
+ break;
+ }
+ if (ret) {
+ warning("recount: unexpected line: %.*s",
+ (int)linelen(line, size), line);
+ return;
+ }
+ break;
+ }
+ fragment->oldlines = oldlines;
+ fragment->newlines = newlines;
+}
+
/*
* Parse a unified diff fragment header of the
* form "@@ -a,b +c,d @@"
static void check_whitespace(const char *line, int len, unsigned ws_rule)
{
char *err;
- unsigned result = check_and_emit_line(line + 1, len - 1, ws_rule,
- NULL, NULL, NULL, NULL);
+ unsigned result = ws_check(line + 1, len - 1, ws_rule);
if (!result)
return;
else {
err = whitespace_error_string(result);
fprintf(stderr, "%s:%d: %s.\n%.*s\n",
- patch_input_file, linenr, err, len - 2, line + 1);
+ patch_input_file, linenr, err, len - 2, line + 1);
free(err);
}
}
offset = parse_fragment_header(line, len, fragment);
if (offset < 0)
return -1;
+ if (offset > 0 && patch->recount)
+ recount_diff(line + offset, size - offset, fragment);
oldlines = fragment->oldlines;
newlines = fragment->newlines;
leading = 0;
static void show_stats(struct patch *patch)
{
- struct strbuf qname;
+ struct strbuf qname = STRBUF_INIT;
char *cp = patch->new_name ? patch->new_name : patch->old_name;
int max, add, del;
- strbuf_init(&qname, 0);
quote_c_style(cp, &qname, NULL, 0);
/*
{
switch (st->st_mode & S_IFMT) {
case S_IFLNK:
- strbuf_grow(buf, st->st_size);
- if (readlink(path, buf->buf, st->st_size) != st->st_size)
- return -1;
- strbuf_setlen(buf, st->st_size);
+ if (strbuf_readlink(buf, path, st->st_size) < 0)
+ return error("unable to read symlink %s", path);
return 0;
case S_IFREG:
if (strbuf_read_file(buf, path, st->st_size) != st->st_size)
fixlen = ws_fix_copy(buf, orig, oldlen, ws_rule, NULL);
/* Try fixing the line in the target */
- if (sizeof(tgtfixbuf) < tgtlen)
+ if (sizeof(tgtfixbuf) > tgtlen)
tgtfix = tgtfixbuf;
else
tgtfix = xmalloc(tgtlen);
/*
* A hunk to change lines at the beginning would begin with
* @@ -1,L +N,M @@
+ * but we need to be careful. -U0 that inserts before the second
+ * line also has this pattern.
*
* And a hunk to add to an empty file would begin with
* @@ -0,0 +N,M @@
* In other words, a hunk that is (frag->oldpos <= 1) with or
* without leading context must match at the beginning.
*/
- match_beginning = frag->oldpos <= 1;
+ match_beginning = (!frag->oldpos ||
+ (frag->oldpos == 1 && !unidiff_zero));
/*
* A hunk without trailing lines must match at the end.
return 0;
}
+static struct patch *in_fn_table(const char *name)
+{
+ struct string_list_item *item;
+
+ if (name == NULL)
+ return NULL;
+
+ item = string_list_lookup(name, &fn_table);
+ if (item != NULL)
+ return (struct patch *)item->util;
+
+ return NULL;
+}
+
+static void add_to_fn_table(struct patch *patch)
+{
+ struct string_list_item *item;
+
+ /*
+ * Always add new_name unless patch is a deletion
+ * This should cover the cases for normal diffs,
+ * file creations and copies
+ */
+ if (patch->new_name != NULL) {
+ item = string_list_insert(patch->new_name, &fn_table);
+ item->util = patch;
+ }
+
+ /*
+ * store a failure on rename/deletion cases because
+ * later chunks shouldn't patch old names
+ */
+ if ((patch->new_name == NULL) || (patch->is_rename)) {
+ item = string_list_insert(patch->old_name, &fn_table);
+ item->util = (struct patch *) -1;
+ }
+}
+
static int apply_data(struct patch *patch, struct stat *st, struct cache_entry *ce)
{
- struct strbuf buf;
+ struct strbuf buf = STRBUF_INIT;
struct image image;
size_t len;
char *img;
+ struct patch *tpatch;
- strbuf_init(&buf, 0);
- if (cached) {
+ if (!(patch->is_copy || patch->is_rename) &&
+ ((tpatch = in_fn_table(patch->old_name)) != NULL)) {
+ if (tpatch == (struct patch *) -1) {
+ return error("patch %s has been renamed/deleted",
+ patch->old_name);
+ }
+ /* We have a patched copy in memory use that */
+ strbuf_add(&buf, tpatch->result, tpatch->resultsize);
+ } else if (cached) {
if (read_file_or_gitlink(ce, &buf))
return error("read of %s failed", patch->old_name);
} else if (patch->old_name) {
return -1; /* note with --reject this succeeds. */
patch->result = image.buf;
patch->resultsize = image.len;
+ add_to_fn_table(patch);
free(image.line_allocated);
if (0 < patch->is_delete && patch->resultsize)
static int check_preimage(struct patch *patch, struct cache_entry **ce, struct stat *st)
{
const char *old_name = patch->old_name;
+ struct patch *tpatch = NULL;
int stat_ret = 0;
unsigned st_mode = 0;
return 0;
assert(patch->is_new <= 0);
- if (!cached) {
+
+ if (!(patch->is_copy || patch->is_rename) &&
+ (tpatch = in_fn_table(old_name)) != NULL) {
+ if (tpatch == (struct patch *) -1) {
+ return error("%s: has been deleted/renamed", old_name);
+ }
+ st_mode = tpatch->new_mode;
+ } else if (!cached) {
stat_ret = lstat(old_name, st);
if (stat_ret && errno != ENOENT)
return error("%s: %s", old_name, strerror(errno));
}
- if (check_index) {
+
+ if (check_index && !tpatch) {
int pos = cache_name_pos(old_name, strlen(old_name));
if (pos < 0) {
if (patch->is_new < 0)
if (st_mode != patch->old_mode)
fprintf(stderr, "warning: %s has type %o, expected %o\n",
old_name, st_mode, patch->old_mode);
+ if (!patch->new_mode)
+ patch->new_mode = st_mode;
return 0;
is_new:
return 0;
}
-static int check_patch(struct patch *patch, struct patch *prev_patch)
+static int check_patch(struct patch *patch)
{
struct stat st;
const char *old_name = patch->old_name;
return status;
old_name = patch->old_name;
- if (new_name && prev_patch && 0 < prev_patch->is_delete &&
- !strcmp(prev_patch->old_name, new_name))
+ if (in_fn_table(new_name) == (struct patch *) -1)
/*
* A type-change diff is always split into a patch to
* delete old, immediately followed by a patch to
static int check_patch_list(struct patch *patch)
{
- struct patch *prev_patch = NULL;
int err = 0;
- for (prev_patch = NULL; patch ; patch = patch->next) {
+ while (patch) {
if (apply_verbosely)
say_patch_name(stderr,
"Checking patch ", patch, "...\n");
- err |= check_patch(patch, prev_patch);
- prev_patch = patch;
+ err |= check_patch(patch);
+ patch = patch->next;
}
return err;
}
sha1_ptr = sha1;
ce = make_cache_entry(patch->old_mode, sha1_ptr, name, 0, 0);
+ if (!ce)
+ die("make_cache_entry failed for path '%s'", name);
if (add_index_entry(&result, ce, ADD_CACHE_OK_TO_ADD))
die ("Could not add %s to temporary index", name);
}
warning("unable to remove submodule %s",
patch->old_name);
} else if (!unlink(patch->old_name) && rmdir_empty) {
- char *name = xstrdup(patch->old_name);
- char *end = strrchr(name, '/');
- while (end) {
- *end = 0;
- if (rmdir(name))
- break;
- end = strrchr(name, '/');
- }
- free(name);
+ remove_path(patch->old_name);
}
}
}
static int try_create_file(const char *path, unsigned int mode, const char *buf, unsigned long size)
{
int fd;
- struct strbuf nbuf;
+ struct strbuf nbuf = STRBUF_INIT;
if (S_ISGITLINK(mode)) {
struct stat st;
if (fd < 0)
return -1;
- strbuf_init(&nbuf, 0);
if (convert_to_working_tree(path, buf, size, &nbuf)) {
size = nbuf.len;
buf = nbuf.buf;
unsigned int nr = getpid();
for (;;) {
- const char *newpath;
- newpath = mkpath("%s~%u", path, nr);
+ char newpath[PATH_MAX];
+ mksnpath(newpath, sizeof(newpath), "%s~%u", path, nr);
if (!try_create_file(newpath, mode, buf, size)) {
if (!rename(newpath, path))
return;
static struct lock_file lock_file;
-static struct excludes {
- struct excludes *next;
- const char *path;
-} *excludes;
+static struct string_list limit_by_name;
+static int has_include;
+static void add_name_limit(const char *name, int exclude)
+{
+ struct string_list_item *it;
+
+ it = string_list_append(name, &limit_by_name);
+ it->util = exclude ? NULL : (void *) 1;
+}
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;
- }
+ int i;
+
+ /* Paths outside are not touched regardless of "--include" */
if (0 < prefix_length) {
int pathlen = strlen(pathname);
if (pathlen <= prefix_length ||
memcmp(prefix, pathname, prefix_length))
return 0;
}
- return 1;
+
+ /* See if it matches any of exclude/include rule */
+ for (i = 0; i < limit_by_name.nr; i++) {
+ struct string_list_item *it = &limit_by_name.items[i];
+ if (!fnmatch(it->string, pathname, 0))
+ return (it->util != NULL);
+ }
+
+ /*
+ * If we had any include, a path that does not match any rule is
+ * not used. Otherwise, we saw bunch of exclude rules (or none)
+ * and such a path is used.
+ */
+ return !has_include;
}
+
static void prefix_one(char **name)
{
char *old_name = *name;
}
}
-static int apply_patch(int fd, const char *filename, int inaccurate_eof)
+#define INACCURATE_EOF (1<<0)
+#define RECOUNT (1<<1)
+
+static int apply_patch(int fd, const char *filename, int options)
{
size_t offset;
- struct strbuf buf;
+ struct strbuf buf = STRBUF_INIT;
struct patch *list = NULL, **listp = &list;
int skipped_patch = 0;
- strbuf_init(&buf, 0);
+ /* FIXME - memory leak when using multiple patch files as inputs */
+ memset(&fn_table, 0, sizeof(struct string_list));
patch_input_file = filename;
read_patch_file(&buf, fd);
offset = 0;
int nr;
patch = xcalloc(1, sizeof(*patch));
- patch->inaccurate_eof = inaccurate_eof;
+ patch->inaccurate_eof = !!(options & INACCURATE_EOF);
+ patch->recount = !!(options & RECOUNT);
nr = parse_chunk(buf.buf + offset, buf.len - offset, patch);
if (nr < 0)
break;
{
int i;
int read_stdin = 1;
- int inaccurate_eof = 0;
+ int options = 0;
int errs = 0;
int is_not_gitdir;
int fd;
if (!strcmp(arg, "-")) {
- errs |= apply_patch(0, "<stdin>", inaccurate_eof);
+ errs |= apply_patch(0, "<stdin>", options);
read_stdin = 0;
continue;
}
if (!prefixcmp(arg, "--exclude=")) {
- struct excludes *x = xmalloc(sizeof(*x));
- x->path = arg + 10;
- x->next = excludes;
- excludes = x;
+ add_name_limit(arg + 10, 1);
+ continue;
+ }
+ if (!prefixcmp(arg, "--include=")) {
+ add_name_limit(arg + 10, 0);
+ has_include = 1;
continue;
}
if (!prefixcmp(arg, "-p")) {
continue;
}
if (!strcmp(arg, "--inaccurate-eof")) {
- inaccurate_eof = 1;
+ options |= INACCURATE_EOF;
+ continue;
+ }
+ if (!strcmp(arg, "--recount")) {
+ options |= RECOUNT;
+ continue;
+ }
+ if (!prefixcmp(arg, "--directory=")) {
+ arg += strlen("--directory=");
+ root_len = strlen(arg);
+ if (root_len && arg[root_len - 1] != '/') {
+ char *new_root;
+ root = new_root = xmalloc(root_len + 2);
+ strcpy(new_root, arg);
+ strcpy(new_root + root_len++, "/");
+ } else
+ root = arg;
continue;
}
if (0 < prefix_length)
die("can't open patch '%s': %s", arg, strerror(errno));
read_stdin = 0;
set_default_whitespace_mode(whitespace_option);
- errs |= apply_patch(fd, arg, inaccurate_eof);
+ errs |= apply_patch(fd, arg, options);
close(fd);
}
set_default_whitespace_mode(whitespace_option);
if (read_stdin)
- errs |= apply_patch(0, "<stdin>", inaccurate_eof);
+ errs |= apply_patch(0, "<stdin>", options);
if (whitespace_error) {
if (squelch_whitespace_errors &&
squelch_whitespace_errors < whitespace_error) {