#include <ctype.h>
#include "cache.h"
#include "diff.h"
+#include "commit.h"
-static int silent = 0;
static int show_root_diff = 0;
static int verbose_header = 0;
static int ignore_merges = 1;
static int recursive = 0;
+static int show_tree_entry_in_recursive = 0;
static int read_stdin = 0;
-static int line_termination = '\n';
-static int generate_patch = 0;
+static int diff_output_format = DIFF_FORMAT_RAW;
+static int diff_line_termination = '\n';
static int detect_rename = 0;
-static int reverse_diff = 0;
+static int find_copies_harder = 0;
+static int diff_setup_opt = 0;
static int diff_score_opt = 0;
static const char *pickaxe = NULL;
+static int pickaxe_opts = 0;
+static int diff_break_opt = -1;
+static const char *orderfile = NULL;
+static const char *diff_filter = NULL;
static const char *header = NULL;
static const char *header_prefix = "";
+static enum cmit_fmt commit_format = CMIT_FMT_RAW;
// What paths are we interested in?
static int nr_paths = 0;
-static char **paths = NULL;
+static const char **paths = NULL;
static int *pathlens = NULL;
static int diff_tree_sha1(const unsigned char *old, const unsigned char *new, const char *base);
int len = strlen(tree)+1;
const unsigned char *sha1 = tree + len;
const char *path = strchr(tree, ' ');
+ unsigned int mode;
- if (!path || size < len + 20 || sscanf(tree, "%o", modep) != 1)
+ if (!path || size < len + 20 || sscanf(tree, "%o", &mode) != 1)
die("corrupt tree file");
*pathp = path+1;
+ *modep = DIFF_FILE_CANON_MODE(mode);
return sha1;
}
const char *path;
const unsigned char *sha1 = extract(tree, size, &path, &mode);
- if (header) {
- printf("%s", header);
- header = NULL;
- }
-
- if (silent)
- return;
-
if (recursive && S_ISDIR(mode)) {
char type[20];
unsigned long size;
show_file("+", tree2, size2, base);
return 1;
}
- if (!memcmp(sha1, sha2, 20) && mode1 == mode2)
+ if (!find_copies_harder && !memcmp(sha1, sha2, 20) && mode1 == mode2)
return 0;
/*
if (recursive && S_ISDIR(mode1)) {
int retval;
char *newbase = malloc_base(base, path1, pathlen1);
+ if (show_tree_entry_in_recursive)
+ diff_change(mode1, mode2, sha1, sha2, base, path1);
retval = diff_tree_sha1(sha1, sha2, newbase);
free(newbase);
return retval;
}
- if (header) {
- printf("%s", header);
- header = NULL;
- }
- if (silent)
- return 0;
-
diff_change(mode1, mode2, sha1, sha2, base, path1);
return 0;
}
return retval;
}
+static void call_diff_setup(void)
+{
+ diff_setup(diff_setup_opt);
+}
+
+static int call_diff_flush(void)
+{
+ diffcore_std(NULL,
+ detect_rename, diff_score_opt,
+ pickaxe, pickaxe_opts,
+ diff_break_opt,
+ orderfile,
+ diff_filter);
+ if (diff_queue_is_empty()) {
+ diff_flush(DIFF_FORMAT_NO_OUTPUT, diff_line_termination);
+ return 0;
+ }
+ if (header) {
+ printf("%s%c", header, diff_line_termination);
+ header = NULL;
+ }
+ diff_flush(diff_output_format, diff_line_termination);
+ return 1;
+}
+
static int diff_tree_sha1_top(const unsigned char *old,
const unsigned char *new, const char *base)
{
int ret;
- diff_setup(detect_rename, diff_score_opt, pickaxe,
- reverse_diff, (generate_patch ? -1 : line_termination),
- NULL, 0);
+ call_diff_setup();
ret = diff_tree_sha1(old, new, base);
- diff_flush();
+ call_diff_flush();
return ret;
}
void *tree;
unsigned long size;
- diff_setup(detect_rename, diff_score_opt, pickaxe,
- reverse_diff, (generate_patch ? -1 : line_termination),
- NULL, 0);
+ call_diff_setup();
tree = read_object_with_reference(new, "tree", &size, NULL);
if (!tree)
die("unable to read root tree (%s)", sha1_to_hex(new));
retval = diff_tree("", 0, tree, size, base);
free(tree);
- diff_flush();
+ call_diff_flush();
return retval;
}
-static int get_one_line(const char *msg, unsigned long len)
-{
- int ret = 0;
-
- while (len--) {
- ret++;
- if (*msg++ == '\n')
- break;
- }
- return ret;
-}
-
-static int add_author_info(char *buf, const char *line, int len)
-{
- char *date;
- unsigned int namelen;
- unsigned long time;
- int tz;
-
- line += strlen("author ");
- date = strchr(line, '>');
- if (!date)
- return 0;
- namelen = ++date - line;
- time = strtoul(date, &date, 10);
- tz = strtol(date, NULL, 10);
-
- return sprintf(buf, "Author: %.*s\nDate: %s\n",
- namelen, line,
- show_date(time, tz));
-}
-
-static char *generate_header(const char *commit, const char *parent, const char *msg, unsigned long len)
+static const char *generate_header(const char *commit, const char *parent, const char *msg, unsigned long len)
{
static char this_header[16384];
int offset;
- offset = sprintf(this_header, "%s%s (from %s)\n", header_prefix, commit, parent);
- if (verbose_header) {
- int hdr = 1;
-
- for (;;) {
- const char *line = msg;
- int linelen = get_one_line(msg, len);
-
- if (!linelen)
- break;
-
- /*
- * We want some slop for indentation and a possible
- * final "...". Thus the "+ 20".
- */
- if (offset + linelen + 20 > sizeof(this_header)) {
- memcpy(this_header + offset, " ...\n", 8);
- offset += 8;
- break;
- }
-
- msg += linelen;
- len -= linelen;
- if (linelen == 1)
- hdr = 0;
- if (hdr) {
- if (!memcmp(line, "author ", 7))
- offset += add_author_info(this_header + offset, line, linelen);
- continue;
- }
- memset(this_header + offset, ' ', 4);
- memcpy(this_header + offset + 4, line, linelen);
- offset += linelen + 4;
- }
- /* Make sure there is an EOLN */
- if (this_header[offset-1] != '\n')
- this_header[offset++] = '\n';
- /* Add _another_ EOLN if we are doing diff output */
- if (!silent)
- this_header[offset++] = '\n';
- this_header[offset] = 0;
- }
+ if (!verbose_header)
+ return commit;
+ offset = sprintf(this_header, "%s%s (from %s)\n", header_prefix, commit, parent);
+ offset += pretty_print_commit(commit_format, msg, len, this_header + offset, sizeof(this_header) - offset);
return this_header;
}
* Don't print multiple merge entries if we
* don't print the diffs.
*/
- if (silent)
- break;
}
offset += 48;
}
return diff_tree_commit(commit, line);
}
-static char *diff_tree_usage =
-"git-diff-tree [-p] [-r] [-z] [--stdin] [-M] [-C] [-R] [-S<string>] [-m] [-s] [-v] <tree-ish> <tree-ish>";
+static int count_paths(const char **paths)
+{
+ int i = 0;
+ while (*paths++)
+ i++;
+ return i;
+}
+
+static const char diff_tree_usage[] =
+"git-diff-tree [--stdin] [-m] [-s] [-v] [--pretty] [-t] "
+"[<common diff options>] <tree-ish> <tree-ish>"
+COMMON_DIFF_OPTIONS_HELP;
int main(int argc, char **argv)
{
int nr_sha1;
char line[1000];
unsigned char sha1[2][20];
+ const char *prefix = setup_git_directory();
nr_sha1 = 0;
for (;;) {
- char *arg;
+ const char *arg;
argv++;
argc--;
recursive = 1;
continue;
}
+ if (!strcmp(arg, "-t")) {
+ recursive = show_tree_entry_in_recursive = 1;
+ continue;
+ }
if (!strcmp(arg, "-R")) {
- reverse_diff = 1;
+ diff_setup_opt |= DIFF_SETUP_REVERSE;
continue;
}
- if (!strcmp(arg, "-p")) {
- recursive = generate_patch = 1;
+ if (!strcmp(arg, "-p") || !strcmp(arg, "-u")) {
+ diff_output_format = DIFF_FORMAT_PATCH;
+ recursive = 1;
continue;
}
if (!strncmp(arg, "-S", 2)) {
pickaxe = arg + 2;
continue;
}
+ if (!strncmp(arg, "-O", 2)) {
+ orderfile = arg + 2;
+ continue;
+ }
+ if (!strncmp(arg, "--diff-filter=", 14)) {
+ diff_filter = arg + 14;
+ continue;
+ }
+ if (!strcmp(arg, "--pickaxe-all")) {
+ pickaxe_opts = DIFF_PICKAXE_ALL;
+ continue;
+ }
if (!strncmp(arg, "-M", 2)) {
- detect_rename = recursive = generate_patch = 1;
- diff_score_opt = diff_scoreopt_parse(arg);
+ detect_rename = DIFF_DETECT_RENAME;
+ if ((diff_score_opt = diff_scoreopt_parse(arg)) == -1)
+ usage(diff_tree_usage);
continue;
}
if (!strncmp(arg, "-C", 2)) {
- detect_rename = 2;
- recursive = generate_patch = 1;
- diff_score_opt = diff_scoreopt_parse(arg);
+ detect_rename = DIFF_DETECT_COPY;
+ if ((diff_score_opt = diff_scoreopt_parse(arg)) == -1)
+ usage(diff_tree_usage);
+ continue;
+ }
+ if (!strncmp(arg, "-B", 2)) {
+ if ((diff_break_opt = diff_scoreopt_parse(arg)) == -1)
+ usage(diff_tree_usage);
+ continue;
+ }
+ if (!strcmp(arg, "--find-copies-harder")) {
+ find_copies_harder = 1;
+ continue;
+ }
+ if (!strcmp(arg, "--name-only")) {
+ diff_output_format = DIFF_FORMAT_NAME;
continue;
}
if (!strcmp(arg, "-z")) {
- line_termination = '\0';
+ diff_line_termination = 0;
continue;
}
if (!strcmp(arg, "-m")) {
continue;
}
if (!strcmp(arg, "-s")) {
- silent = 1;
+ diff_output_format = DIFF_FORMAT_NO_OUTPUT;
continue;
}
if (!strcmp(arg, "-v")) {
header_prefix = "diff-tree ";
continue;
}
+ if (!strncmp(arg, "--pretty", 8)) {
+ verbose_header = 1;
+ header_prefix = "diff-tree ";
+ commit_format = get_commit_format(arg+8);
+ continue;
+ }
if (!strcmp(arg, "--stdin")) {
read_stdin = 1;
continue;
}
usage(diff_tree_usage);
}
+ if (find_copies_harder && detect_rename != DIFF_DETECT_COPY)
+ usage(diff_tree_usage);
- if (argc > 0) {
+ paths = get_pathspec(prefix, argv);
+ if (paths) {
int i;
- paths = argv;
- nr_paths = argc;
+ nr_paths = count_paths(paths);
pathlens = xmalloc(nr_paths * sizeof(int));
for (i=0; i<nr_paths; i++)
pathlens[i] = strlen(paths[i]);
if (!read_stdin)
return 0;
+ if (detect_rename)
+ diff_setup_opt |= (DIFF_SETUP_USE_SIZE_CACHE |
+ DIFF_SETUP_USE_CACHE);
while (fgets(line, sizeof(line), stdin))
diff_tree_stdin(line);