LIB_OBJS += diffcore-pickaxe.o
LIB_OBJS += diffcore-rename.o
LIB_OBJS += diff-delta.o
+LIB_OBJS += diff-no-index.o
LIB_OBJS += diff-lib.o
LIB_OBJS += diff.o
LIB_OBJS += dir.o
rollback_lock_file(lock_file);
}
+static int builtin_diff_files(struct rev_info *revs, int argc, const char **argv)
+{
+ int result;
+ unsigned int options = 0;
+
+ 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], "-q"))
+ options |= DIFF_SILENT_ON_REMOVED;
+ else
+ return error("invalid option: %s", argv[1]);
+ argv++; argc--;
+ }
+
+ if (revs->max_count == -1 &&
+ (revs->diffopt.output_format & DIFF_FORMAT_PATCH))
+ revs->combine_merges = revs->dense_combined_merges = 1;
+
+ if (read_cache() < 0) {
+ perror("read_cache");
+ return -1;
+ }
+ result = run_diff_files(revs, options);
+ return diff_result_code(&revs->diffopt, result);
+}
+
int cmd_diff(int argc, const char **argv, const char *prefix)
{
int i;
* N=2, M=0:
* tree vs tree (diff-tree)
*
+ * N=0, M=0, P=2:
+ * compare two filesystem entities (aka --no-index).
+ *
* Other cases are errors.
*/
diff_use_color_default = git_use_color_default;
init_revisions(&rev, prefix);
+
+ /* If this is a no-index diff, just run it and exit there. */
+ diff_no_index(&rev, argc, argv, nongit, prefix);
+
+ /* Otherwise, we are doing the usual "git" diff */
rev.diffopt.skip_stat_unmatch = !!diff_auto_refresh_index;
- if (!setup_diff_no_index(&rev, argc, argv, nongit, prefix))
- argc = 0;
- else
- argc = setup_revisions(argc, argv, &rev, NULL);
+ if (nongit)
+ die("Not a git repository");
+ argc = setup_revisions(argc, argv, &rev, NULL);
if (!rev.diffopt.output_format) {
rev.diffopt.output_format = DIFF_FORMAT_PATCH;
if (diff_setup_done(&rev.diffopt) < 0)
die("diff_setup_done failed");
}
- if (rev.diffopt.prefix && nongit) {
- rev.diffopt.prefix = NULL;
- rev.diffopt.prefix_length = 0;
- }
DIFF_OPT_SET(&rev.diffopt, ALLOW_EXTERNAL);
DIFF_OPT_SET(&rev.diffopt, RECURSIVE);
if (!DIFF_OPT_TST(&rev.diffopt, EXIT_WITH_STATUS))
setup_pager();
- /* Do we have --cached and not have a pending object, then
+ /*
+ * Do we have --cached and not have a pending object, then
* default to HEAD by hand. Eek.
*/
if (!rev.pending.nr) {
if (!ents) {
switch (blobs) {
case 0:
- result = run_diff_files_cmd(&rev, argc, argv);
+ result = builtin_diff_files(&rev, argc, argv);
break;
case 1:
if (paths != 1)
#include "diffcore.h"
#include "revision.h"
#include "cache-tree.h"
-#include "path-list.h"
#include "unpack-trees.h"
#include "refs.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(e->d_name, list);
-
- closedir(dir);
- return 0;
-}
-
-static int get_mode(const char *path, int *mode)
-{
- struct stat st;
-
- if (!path || !strcmp(path, "/dev/null"))
- *mode = 0;
- else if (!strcmp(path, "-"))
- *mode = create_ce_mode(0666);
- else if (stat(path, &st))
- return error("Could not access '%s'", path);
- else
- *mode = st.st_mode;
- return 0;
-}
-
-static int queue_diff(struct diff_options *o,
- const char *name1, const char *name2)
-{
- int mode1 = 0, mode2 = 0;
-
- if (get_mode(name1, &mode1) || get_mode(name2, &mode2))
- return -1;
-
- 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 (DIFF_OPT_TST(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;
- }
-}
-
-/*
- * Does the path name a blob in the working tree, or a directory
- * in the working tree?
- */
-static int is_in_index(const char *path)
-{
- int len, pos;
- struct cache_entry *ce;
-
- len = strlen(path);
- while (path[len-1] == '/')
- len--;
- if (!len)
- return 1; /* "." */
- pos = cache_name_pos(path, len);
- if (0 <= pos)
- return 1;
- pos = -1 - pos;
- while (pos < active_nr) {
- ce = active_cache[pos++];
- if (ce_namelen(ce) <= len ||
- strncmp(ce->name, path, len) ||
- (ce->name[len] > '/'))
- break; /* path cannot be a prefix */
- if (ce->name[len] == '/')
- return 1;
- }
- return 0;
-}
-
-static int handle_diff_files_args(struct rev_info *revs,
- int argc, const char **argv,
- unsigned int *options)
-{
- *options = 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;
- DIFF_OPT_SET(&revs->diffopt, EXIT_WITH_STATUS);
- DIFF_OPT_SET(&revs->diffopt, NO_INDEX);
- }
- else if (!strcmp(argv[1], "-q"))
- *options |= DIFF_SILENT_ON_REMOVED;
- 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;
- DIFF_OPT_SET(&revs->diffopt, NO_INDEX);
- }
- }
-
- /*
- * 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;
-}
-
-static int is_outside_repo(const char *path, int nongit, const char *prefix)
-{
- int i;
- if (nongit || !strcmp(path, "-") || is_absolute_path(path))
- return 1;
- if (prefixcmp(path, "../"))
- return 0;
- if (!prefix)
- return 1;
- for (i = strlen(prefix); !prefixcmp(path, "../"); ) {
- while (i > 0 && prefix[i - 1] != '/')
- i--;
- if (--i < 0)
- return 1;
- path += 3;
- }
- return 0;
-}
-
-int setup_diff_no_index(struct rev_info *revs,
- int argc, const char ** argv, int nongit, const char *prefix)
-{
- int i;
- for (i = 1; i < argc; i++)
- if (argv[i][0] != '-' || argv[i][1] == '\0')
- break;
- else if (!strcmp(argv[i], "--")) {
- i++;
- break;
- } else if (i < argc - 3 && !strcmp(argv[i], "--no-index")) {
- i = argc - 3;
- DIFF_OPT_SET(&revs->diffopt, EXIT_WITH_STATUS);
- break;
- }
- if (nongit && argc != i + 2)
- die("git diff [--no-index] takes two paths");
-
- if (argc != i + 2 || (!is_outside_repo(argv[i + 1], nongit, prefix) &&
- !is_outside_repo(argv[i], nongit, prefix)))
- return -1;
-
- diff_setup(&revs->diffopt);
- for (i = 1; i < argc - 2; )
- if (!strcmp(argv[i], "--no-index"))
- i++;
- else {
- int j = diff_opt_parse(&revs->diffopt,
- argv + i, argc - i);
- if (!j)
- die("invalid diff option/value: %s", argv[i]);
- i += j;
- }
-
- if (prefix) {
- int len = strlen(prefix);
-
- revs->diffopt.paths = xcalloc(2, sizeof(char*));
- for (i = 0; i < 2; i++) {
- const char *p = argv[argc - 2 + i];
- /*
- * stdin should be spelled as '-'; if you have
- * path that is '-', spell it as ./-.
- */
- p = (strcmp(p, "-")
- ? xstrdup(prefix_filename(prefix, len, p))
- : p);
- revs->diffopt.paths[i] = p;
- }
- }
- else
- revs->diffopt.paths = argv + argc - 2;
- revs->diffopt.nr_paths = 2;
- DIFF_OPT_SET(&revs->diffopt, NO_INDEX);
- revs->max_count = -2;
- if (diff_setup_done(&revs->diffopt) < 0)
- die("diff_setup_done failed");
- return 0;
-}
-
-int run_diff_files_cmd(struct rev_info *revs, int argc, const char **argv)
-{
- unsigned int options;
-
- if (handle_diff_files_args(revs, argc, argv, &options))
- return -1;
-
- if (DIFF_OPT_TST(&revs->diffopt, NO_INDEX)) {
- if (revs->diffopt.nr_paths != 2)
- return error("need two files/directories with --no-index");
- if (queue_diff(&revs->diffopt, revs->diffopt.paths[0],
- revs->diffopt.paths[1]))
- return -1;
- diffcore_std(&revs->diffopt);
- diff_flush(&revs->diffopt);
- /*
- * The return code for --no-index imitates diff(1):
- * 0 = no changes, 1 = changes, else error
- */
- return revs->diffopt.found_changes;
- }
-
- if (read_cache() < 0) {
- perror("read_cache");
- return -1;
- }
- return run_diff_files(revs, options);
-}
-
/*
* Has the work tree entity been removed?
*
--- /dev/null
+/*
+ * "diff --no-index" support
+ * Copyright (c) 2007 by Johannes Schindelin
+ * Copyright (c) 2008 by Junio C Hamano
+ */
+
+#include "cache.h"
+#include "color.h"
+#include "commit.h"
+#include "blob.h"
+#include "tag.h"
+#include "diff.h"
+#include "diffcore.h"
+#include "revision.h"
+#include "log-tree.h"
+#include "builtin.h"
+#include "path-list.h"
+
+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(e->d_name, list);
+
+ closedir(dir);
+ return 0;
+}
+
+static int get_mode(const char *path, int *mode)
+{
+ struct stat st;
+
+ if (!path || !strcmp(path, "/dev/null"))
+ *mode = 0;
+ else if (!strcmp(path, "-"))
+ *mode = create_ce_mode(0666);
+ else if (stat(path, &st))
+ return error("Could not access '%s'", path);
+ else
+ *mode = st.st_mode;
+ return 0;
+}
+
+static int queue_diff(struct diff_options *o,
+ const char *name1, const char *name2)
+{
+ int mode1 = 0, mode2 = 0;
+
+ if (get_mode(name1, &mode1) || get_mode(name2, &mode2))
+ return -1;
+
+ 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 (DIFF_OPT_TST(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;
+ }
+}
+
+void diff_no_index(struct rev_info *revs,
+ int argc, const char **argv,
+ int nongit, const char *prefix)
+{
+ int i;
+ int no_index = 0;
+ unsigned options = 0;
+
+ /* Were we asked to do --no-index explicitly? */
+ for (i = 1; i < argc; i++) {
+ if (!strcmp(argv[i], "--"))
+ return;
+ if (!strcmp(argv[i], "--no-index"))
+ no_index = 1;
+ if (argv[i][0] != '-')
+ break;
+ }
+
+ /*
+ * No explicit --no-index, but "git diff --opts A B" outside
+ * a git repository is a cute hack to support.
+ */
+ if (!no_index && !nongit)
+ return;
+
+ if (argc != i + 2)
+ die("git diff %s takes two paths",
+ no_index ? "--no-index" : "[--no-index]");
+
+ diff_setup(&revs->diffopt);
+ if (!revs->diffopt.output_format)
+ revs->diffopt.output_format = DIFF_FORMAT_PATCH;
+ for (i = 1; i < argc - 2; ) {
+ int j;
+ if (!strcmp(argv[i], "--no-index"))
+ i++;
+ else if (!strcmp(argv[1], "-q"))
+ options |= DIFF_SILENT_ON_REMOVED;
+ else {
+ j = diff_opt_parse(&revs->diffopt, argv + i, argc - i);
+ if (!j)
+ die("invalid diff option/value: %s", argv[i]);
+ i += j;
+ }
+ }
+
+ if (prefix) {
+ int len = strlen(prefix);
+
+ revs->diffopt.paths = xcalloc(2, sizeof(char*));
+ for (i = 0; i < 2; i++) {
+ const char *p = argv[argc - 2 + i];
+ /*
+ * stdin should be spelled as '-'; if you have
+ * path that is '-', spell it as ./-.
+ */
+ p = (strcmp(p, "-")
+ ? xstrdup(prefix_filename(prefix, len, p))
+ : p);
+ revs->diffopt.paths[i] = p;
+ }
+ }
+ else
+ revs->diffopt.paths = argv + argc - 2;
+ revs->diffopt.nr_paths = 2;
+
+ DIFF_OPT_SET(&revs->diffopt, EXIT_WITH_STATUS);
+ DIFF_OPT_SET(&revs->diffopt, NO_INDEX);
+
+ revs->max_count = -2;
+ if (diff_setup_done(&revs->diffopt) < 0)
+ die("diff_setup_done failed");
+
+ if (queue_diff(&revs->diffopt, revs->diffopt.paths[0],
+ revs->diffopt.paths[1]))
+ exit(1);
+ diffcore_std(&revs->diffopt);
+ diff_flush(&revs->diffopt);
+
+ /*
+ * The return code for --no-index imitates diff(1):
+ * 0 = no changes, 1 = changes, else error
+ */
+ exit(revs->diffopt.found_changes);
+}
/* report racily-clean paths as modified */
#define DIFF_RACY_IS_MODIFIED 02
extern int run_diff_files(struct rev_info *revs, unsigned int option);
-extern int setup_diff_no_index(struct rev_info *revs,
- int argc, const char ** argv, int nongit, const char *prefix);
-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);
extern int do_diff_cache(const unsigned char *, struct diff_options *);
extern int diff_result_code(struct diff_options *, int);
+extern void diff_no_index(struct rev_info *, int, const char **, int, const char *);
+
#endif /* DIFF_H */
diff --patch-with-stat -r initial..side
diff --patch-with-raw -r initial..side
diff --name-status dir2 dir
+diff --no-index --name-status dir2 dir
EOF
test_done
$ git diff --name-status dir2 dir
-A dir/sub
$
--- /dev/null
+$ git diff --no-index --name-status dir2 dir
+A dir/sub
+$
projects / git.git / commitdiff