SYNOPSIS
--------
-'git-diff-files' [-q] [-0|-1|-2|-3|-c|--cc] [<common diff options>] [<path>...]
+'git-diff-files' [-q] [-0|-1|-2|-3|-c|--cc
|-n|--no-index] [<common diff options>] [<path>...]
DESCRIPTION
-----------
diff, similar to the way 'diff-tree' shows a merge
commit with these flags.
+\-n,\--no-index::
+ Compare the two given files / directories.
+
-q::
Remain silent even on nonexistent files
further add to the index but you still haven't. You can
stage these changes by using gitlink:git-add[1].
+ If exactly two paths are given, and at least one is untracked,
+ compare the two files / directories. This behavior can be
+ forced by --no-index.
+
'git-diff' [--options] --cached [<commit>] [--] [<path>...]::
This form is to view the changes you staged for the next
#include "builtin.h"
static const char diff_files_usage[] =
-"git-diff-files [-q] [-0/-1/2/3 |-c|--cc] [<common diff options>] [<path>...]"
+"git-diff-files [-q] [-0/-1/2/3 |-c|--cc
|-n|--no-index] [<common diff options>] [<path>...]"
COMMON_DIFF_OPTIONS_HELP;
int cmd_diff_files(int argc, const char **argv, const char *prefix)
{
struct rev_info rev;
- int silent = 0;
+ int nongit = 0;
+ prefix = setup_git_directory_gently(&nongit);
init_revisions(&rev, prefix);
git_config(git_default_config); /* no "diff" UI options */
rev.abbrev = 0;
argc = setup_revisions(argc, argv, &rev, NULL);
- while (1 < argc && argv[1][0] == '-') {
- if (!strcmp(argv[1], "--base"))
- rev.max_count = 1;
- else if (!strcmp(argv[1], "--ours"))
- rev.max_count = 2;
- else if (!strcmp(argv[1], "--theirs"))
- rev.max_count = 3;
- else if (!strcmp(argv[1], "-q"))
- silent = 1;
- else
- usage(diff_files_usage);
- argv++; argc--;
- }
if (!rev.diffopt.output_format)
rev.diffopt.output_format = DIFF_FORMAT_RAW;
-
- /*
- * Make sure there are NO revision (i.e. pending object) parameter,
- * rev.max_count is reasonable (0 <= n <= 3),
- * there is no other revision filtering parameters.
- */
- if (rev.pending.nr ||
- rev.min_age != -1 || rev.max_age != -1)
- usage(diff_files_usage);
- return run_diff_files(&rev, silent);
+ return run_diff_files_cmd(&rev, argc, argv);
}
if (rev.pending.nr != 1 ||
rev.max_count != -1 || rev.min_age != -1 || rev.max_age != -1)
usage(diff_cache_usage);
+ if (read_cache() < 0) {
+ perror("read_cache");
+ return -1;
+ }
return run_diff_index(&rev, cached);
}
static const char builtin_diff_usage[] =
"git-diff <options> <rev>{0,2} -- <path>*";
-static int builtin_diff_files(struct rev_info *revs,
- int argc, const char **argv)
-{
- int silent = 0;
- while (1 < argc) {
- const char *arg = argv[1];
- if (!strcmp(arg, "--base"))
- revs->max_count = 1;
- else if (!strcmp(arg, "--ours"))
- revs->max_count = 2;
- else if (!strcmp(arg, "--theirs"))
- revs->max_count = 3;
- else if (!strcmp(arg, "-q"))
- silent = 1;
- else
- usage(builtin_diff_usage);
- argv++; argc--;
- }
- /*
- * Make sure there are NO revision (i.e. pending object) parameter,
- * specified rev.max_count is reasonable (0 <= n <= 3), and
- * there is no other revision filtering parameter.
- */
- if (revs->pending.nr ||
- revs->min_age != -1 ||
- revs->max_age != -1 ||
- 3 < revs->max_count)
- usage(builtin_diff_usage);
- if (revs->max_count < 0 &&
- (revs->diffopt.output_format & DIFF_FORMAT_PATCH))
- revs->combine_merges = revs->dense_combined_merges = 1;
- return run_diff_files(revs, silent);
-}
-
static void stuff_change(struct diff_options *opt,
unsigned old_mode, unsigned new_mode,
const unsigned char *old_sha1,
revs->max_count != -1 || revs->min_age != -1 ||
revs->max_age != -1)
usage(builtin_diff_usage);
+ if (read_cache() < 0) {
+ perror("read_cache");
+ return -1;
+ }
return run_diff_index(revs, cached);
}
int ents = 0, blobs = 0, paths = 0;
const char *path = NULL;
struct blobinfo blob[2];
+ int nongit = 0;
/*
* We could get N tree-ish in the rev.pending_objects list.
* Other cases are errors.
*/
+ prefix = setup_git_directory_gently(&nongit);
git_config(git_diff_ui_config);
init_revisions(&rev, prefix);
if (!ents) {
switch (blobs) {
case 0:
- return builtin_diff_files(&rev, argc, argv);
+ return run_diff_files_cmd(&rev, argc, argv);
break;
case 1:
if (paths != 1)
int prefix_length = prefix ? strlen(prefix) : 0;
char set_executable_bit = 0;
unsigned int refresh_flags = 0;
+ int lock_error = 0;
struct lock_file *lock_file;
git_config(git_default_config);
/* We can't free this memory, it becomes part of a linked list parsed atexit() */
lock_file = xcalloc(1, sizeof(struct lock_file));
- newfd = hold_lock_file_for_update(lock_file, get_index_file(), 1);
+ newfd = hold_lock_file_for_update(lock_file, get_index_file(), 0);
+ if (newfd < 0)
+ lock_error = errno;
entries = read_cache();
if (entries < 0)
finish:
if (active_cache_changed) {
+ if (newfd < 0) {
+ if (refresh_flags & REFRESH_QUIET)
+ exit(128);
+ die("unable to create '%s.lock': %s",
+ get_index_file(), strerror(lock_error));
+ }
if (write_cache(newfd, active_cache, active_nr) ||
close(newfd) || commit_lock_file(lock_file))
die("Unable to write new index file");
#include "diffcore.h"
#include "revision.h"
#include "cache-tree.h"
+#include "path-list.h"
/*
* diff-files
*/
+static int read_directory(const char *path, struct path_list *list)
+{
+ DIR *dir;
+ struct dirent *e;
+
+ if (!(dir = opendir(path)))
+ return error("Could not open directory %s", path);
+
+ while ((e = readdir(dir)))
+ if (strcmp(".", e->d_name) && strcmp("..", e->d_name))
+ path_list_insert(xstrdup(e->d_name), list);
+
+ closedir(dir);
+ return 0;
+}
+
+static int queue_diff(struct diff_options *o,
+ const char *name1, const char *name2)
+{
+ struct stat st;
+ int mode1 = 0, mode2 = 0;
+
+ if (name1) {
+ if (stat(name1, &st))
+ return error("Could not access '%s'", name1);
+ mode1 = st.st_mode;
+ }
+ if (name2) {
+ if (stat(name2, &st))
+ return error("Could not access '%s'", name2);
+ mode2 = st.st_mode;
+ }
+
+ if (mode1 && mode2 && S_ISDIR(mode1) != S_ISDIR(mode2))
+ return error("file/directory conflict: %s, %s", name1, name2);
+
+ if (S_ISDIR(mode1) || S_ISDIR(mode2)) {
+ char buffer1[PATH_MAX], buffer2[PATH_MAX];
+ struct path_list p1 = {NULL, 0, 0, 1}, p2 = {NULL, 0, 0, 1};
+ int len1 = 0, len2 = 0, i1, i2, ret = 0;
+
+ if (name1 && read_directory(name1, &p1))
+ return -1;
+ if (name2 && read_directory(name2, &p2)) {
+ path_list_clear(&p1, 0);
+ return -1;
+ }
+
+ if (name1) {
+ len1 = strlen(name1);
+ if (len1 > 0 && name1[len1 - 1] == '/')
+ len1--;
+ memcpy(buffer1, name1, len1);
+ buffer1[len1++] = '/';
+ }
+
+ if (name2) {
+ len2 = strlen(name2);
+ if (len2 > 0 && name2[len2 - 1] == '/')
+ len2--;
+ memcpy(buffer2, name2, len2);
+ buffer2[len2++] = '/';
+ }
+
+ for (i1 = i2 = 0; !ret && (i1 < p1.nr || i2 < p2.nr); ) {
+ const char *n1, *n2;
+ int comp;
+
+ if (i1 == p1.nr)
+ comp = 1;
+ else if (i2 == p2.nr)
+ comp = -1;
+ else
+ comp = strcmp(p1.items[i1].path,
+ p2.items[i2].path);
+
+ if (comp > 0)
+ n1 = NULL;
+ else {
+ n1 = buffer1;
+ strncpy(buffer1 + len1, p1.items[i1++].path,
+ PATH_MAX - len1);
+ }
+
+ if (comp < 0)
+ n2 = NULL;
+ else {
+ n2 = buffer2;
+ strncpy(buffer2 + len2, p2.items[i2++].path,
+ PATH_MAX - len2);
+ }
+
+ ret = queue_diff(o, n1, n2);
+ }
+ path_list_clear(&p1, 0);
+ path_list_clear(&p2, 0);
+
+ return ret;
+ } else {
+ struct diff_filespec *d1, *d2;
+
+ if (o->reverse_diff) {
+ unsigned tmp;
+ const char *tmp_c;
+ tmp = mode1; mode1 = mode2; mode2 = tmp;
+ tmp_c = name1; name1 = name2; name2 = tmp_c;
+ }
+
+ if (!name1)
+ name1 = "/dev/null";
+ if (!name2)
+ name2 = "/dev/null";
+ d1 = alloc_filespec(name1);
+ d2 = alloc_filespec(name2);
+ fill_filespec(d1, null_sha1, mode1);
+ fill_filespec(d2, null_sha1, mode2);
+
+ diff_queue(&diff_queued_diff, d1, d2);
+ return 0;
+ }
+}
+
+static int is_in_index(const char *path)
+{
+ int len = strlen(path);
+ int pos = cache_name_pos(path, len);
+ char c;
+
+ if (pos < 0)
+ return 0;
+ if (strncmp(active_cache[pos]->name, path, len))
+ return 0;
+ c = active_cache[pos]->name[len];
+ return c == '\0' || c == '/';
+}
+
+static int handle_diff_files_args(struct rev_info *revs,
+ int argc, const char **argv, int *silent)
+{
+ *silent = 0;
+
+ /* revs->max_count == -2 means --no-index */
+ while (1 < argc && argv[1][0] == '-') {
+ if (!strcmp(argv[1], "--base"))
+ revs->max_count = 1;
+ else if (!strcmp(argv[1], "--ours"))
+ revs->max_count = 2;
+ else if (!strcmp(argv[1], "--theirs"))
+ revs->max_count = 3;
+ else if (!strcmp(argv[1], "-n") ||
+ !strcmp(argv[1], "--no-index"))
+ revs->max_count = -2;
+ else if (!strcmp(argv[1], "-q"))
+ *silent = 1;
+ else
+ return error("invalid option: %s", argv[1]);
+ argv++; argc--;
+ }
+
+ if (revs->max_count == -1 && revs->diffopt.nr_paths == 2) {
+ /*
+ * If two files are specified, and at least one is untracked,
+ * default to no-index.
+ */
+ read_cache();
+ if (!is_in_index(revs->diffopt.paths[0]) ||
+ !is_in_index(revs->diffopt.paths[1]))
+ revs->max_count = -2;
+ }
+
+ /*
+ * Make sure there are NO revision (i.e. pending object) parameter,
+ * rev.max_count is reasonable (0 <= n <= 3),
+ * there is no other revision filtering parameters.
+ */
+ if (revs->pending.nr || revs->max_count > 3 ||
+ revs->min_age != -1 || revs->max_age != -1)
+ return error("no revision allowed with diff-files");
+
+ if (revs->max_count == -1 &&
+ (revs->diffopt.output_format & DIFF_FORMAT_PATCH))
+ revs->combine_merges = revs->dense_combined_merges = 1;
+
+ return 0;
+}
+
+int run_diff_files_cmd(struct rev_info *revs, int argc, const char **argv)
+{
+ int silent_on_removed;
+
+ if (handle_diff_files_args(revs, argc, argv, &silent_on_removed))
+ return -1;
+
+ if (revs->max_count == -2) {
+ if (revs->diffopt.nr_paths != 2)
+ return error("need two files/directories with --no-index");
+ queue_diff(&revs->diffopt, revs->diffopt.paths[0],
+ revs->diffopt.paths[1]);
+ diffcore_std(&revs->diffopt);
+ diff_flush(&revs->diffopt);
+ return 0;
+ }
+
+ if (read_cache() < 0) {
+ perror("read_cache");
+ return -1;
+ }
+ return run_diff_files(revs, silent_on_removed);
+}
+
int run_diff_files(struct rev_info *revs, int silent_on_removed)
{
int entries, i;
if (diff_unmerged_stage < 0)
diff_unmerged_stage = 2;
- entries = read_cache();
- if (entries < 0) {
- perror("read_cache");
- return -1;
- }
+ entries = active_nr;
for (i = 0; i < entries; i++) {
struct stat st;
unsigned int oldmode, newmode;
if (!revs->ignore_merges)
match_missing = 1;
- if (read_cache() < 0) {
- perror("read_cache");
- return -1;
- }
mark_merge_entries();
ent = revs->pending.objects[0].item;
p->status = DIFF_STATUS_RENAMED;
}
else if (hashcmp(p->one->sha1, p->two->sha1) ||
- p->one->mode != p->two->mode)
+ p->one->mode != p->two->mode ||
+ is_null_sha1(p->one->sha1))
p->status = DIFF_STATUS_MODIFIED;
else {
/* This is a "no-change" entry and should not
extern const char *diff_unique_abbrev(const unsigned char *, int);
extern int run_diff_files(struct rev_info *revs, int silent_on_removed);
+extern int run_diff_files_cmd(struct rev_info *revs, int argc, const char **argv);
extern int run_diff_index(struct rev_info *revs, int cached);
case "$0" in
*status)
status_only=t
- unmerged_ok_if_status=--unmerged ;;
+ ;;
*commit)
status_only=
- unmerged_ok_if_status= ;;
+ ;;
esac
refuse_partial () {
USE_INDEX="$THIS_INDEX"
fi
-GIT_INDEX_FILE="$USE_INDEX" \
- git-update-index -q $unmerged_ok_if_status --refresh || exit
-
-################################################################
-# If the request is status, just show it and exit.
-
-case "$0" in
-*status)
+case "$status_only" in
+t)
+ # This will silently fail in a read-only repository, which is
+ # what we want.
+ GIT_INDEX_FILE="$USE_INDEX" git-update-index -q --unmerged --refresh
run_status
exit $?
+ ;;
+'')
+ GIT_INDEX_FILE="$USE_INDEX" git-update-index -q --refresh || exit
+ ;;
esac
################################################################
{ "config", cmd_config },
{ "count-objects", cmd_count_objects, RUN_SETUP },
{ "describe", cmd_describe, RUN_SETUP },
- { "diff", cmd_diff, RUN_SETUP | USE_PAGER },
- { "diff-files", cmd_diff_files, RUN_SETUP },
+ { "diff", cmd_diff, USE_PAGER },
+ { "diff-files", cmd_diff_files },
{ "diff-index", cmd_diff_index, RUN_SETUP },
{ "diff-tree", cmd_diff_tree, RUN_SETUP },
{ "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP },
wt_status_print_trailer();
}
+static void wt_read_cache(struct wt_status *s)
+{
+ discard_cache();
+ read_cache();
+}
+
void wt_status_print_initial(struct wt_status *s)
{
int i;
char buf[PATH_MAX];
- read_cache();
+ wt_read_cache(s);
if (active_nr) {
s->commitable = 1;
wt_status_print_cached_header(NULL);
rev.diffopt.format_callback = wt_status_print_updated_cb;
rev.diffopt.format_callback_data = s;
rev.diffopt.detect_rename = 1;
+ wt_read_cache(s);
run_diff_index(&rev, 1);
}
rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = wt_status_print_changed_cb;
rev.diffopt.format_callback_data = s;
+ wt_read_cache(s);
run_diff_files(&rev, 0);
}
setup_revisions(0, NULL, &rev, s->reference);
rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
rev.diffopt.detect_rename = 1;
+ wt_read_cache(s);
run_diff_index(&rev, 1);
}
}
else {
wt_status_print_updated(s);
- discard_cache();
}
wt_status_print_changed(s);