#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_HUMAN;
static int detect_rename = 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;
die("corrupt tree sha %s", sha1_to_hex(sha1));
show_tree(prefix, tree, size, newbase);
-
+
free(tree);
free(newbase);
return;
}
- if (generate_patch) {
- if (!S_ISDIR(mode))
- diff_addremove(prefix[0], mode, sha1, base, path);
- }
- else
- printf("%s%06o\t%s\t%s\t%s%s%c", prefix, mode,
- S_ISDIR(mode) ? "tree" : "blob",
- sha1_to_hex(sha1), base, path,
- line_termination);
+ diff_addremove(prefix[0], mode, sha1, base, path);
}
static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, unsigned long size2, const char *base)
const char *path1, *path2;
const unsigned char *sha1, *sha2;
int cmp, pathlen1, pathlen2;
- char old_sha1_hex[50];
sha1 = extract(tree1, size1, &path1, &mode1);
sha2 = extract(tree2, size2, &path2, &mode2);
pathlen1 = strlen(path1);
pathlen2 = strlen(path2);
- cmp = cache_name_compare(path1, pathlen1, path2, pathlen2);
+ cmp = base_name_compare(path1, pathlen1, mode1, path2, pathlen2, mode2);
if (cmp < 0) {
show_file("-", tree1, size1, base);
return -1;
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;
-
- if (generate_patch) {
- if (!S_ISDIR(mode1))
- diff_change(mode1, mode2, sha1, sha2, base, path1);
- }
- else {
- strcpy(old_sha1_hex, sha1_to_hex(sha1));
- printf("*%06o->%06o\t%s\t%s->%s\t%s%s%c", mode1, mode2,
- S_ISDIR(mode1) ? "tree" : "blob",
- old_sha1_hex, sha1_to_hex(sha2), base, path1,
- line_termination);
- }
+ diff_change(mode1, mode2, sha1, sha2, base, path1);
return 0;
}
unsigned long size1, size2;
int retval;
- tree1 = read_object_with_reference(old, "tree", &size1, 0);
+ tree1 = read_object_with_reference(old, "tree", &size1, NULL);
if (!tree1)
die("unable to read source tree (%s)", sha1_to_hex(old));
- tree2 = read_object_with_reference(new, "tree", &size2, 0);
+ tree2 = read_object_with_reference(new, "tree", &size2, NULL);
if (!tree2)
die("unable to read destination tree (%s)", sha1_to_hex(new));
retval = diff_tree(tree1, size1, tree2, size2, base);
return retval;
}
-static int diff_tree_sha1_top(const unsigned char *old,
- const unsigned char *new, const char *base)
+static void call_diff_setup(void)
{
- int ret;
- if (generate_patch)
- diff_setup(detect_rename, 0, 0, 0, 0);
- ret = diff_tree_sha1(old, new, base);
- if (generate_patch)
- diff_flush();
- return ret;
+ diff_setup(diff_setup_opt);
}
-static int get_one_line(const char *msg, unsigned long len)
+static int call_diff_flush(void)
{
- int ret = 0;
-
- while (len--) {
- ret++;
- if (*msg++ == '\n')
- break;
+ 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);
+ return 0;
}
- return ret;
+ if (header) {
+ const char *fmt = "%s";
+ if (diff_output_format == DIFF_FORMAT_MACHINE)
+ fmt = "%s%c";
+
+ printf(fmt, header, 0);
+ header = NULL;
+ }
+ diff_flush(diff_output_format);
+ return 1;
}
-static int add_author_info(char *buf, const char *line, int len)
+static int diff_tree_sha1_top(const unsigned char *old,
+ const unsigned char *new, const char *base)
{
- 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);
+ int ret;
- return sprintf(buf, "Author: %.*s\nDate: %s\n",
- namelen, line,
- show_date(time, tz));
+ call_diff_setup();
+ ret = diff_tree_sha1(old, new, base);
+ call_diff_flush();
+ return ret;
+}
+
+static int diff_root_tree(const unsigned char *new, const char *base)
+{
+ int retval;
+ void *tree;
+ unsigned long size;
+
+ 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);
+ call_diff_flush();
+ return retval;
}
static char *generate_header(const char *commit, const char *parent, const char *msg, unsigned long len)
{
- static char this_header[1000];
+ 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;
- if (offset + linelen + 10 > sizeof(this_header))
- 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;
- }
+ offset += pretty_print_commit(commit_format, msg, len, this_header + offset, sizeof(this_header) - offset);
this_header[offset++] = '\n';
- this_header[offset] = 0;
+ this_header[offset++] = 0;
}
return this_header;
if (!buf)
return -1;
- /* More than one parent? */
- if (ignore_merges) {
- if (!memcmp(buf + 46 + 48, "parent ", 7))
- return 0;
- }
-
if (!name) {
static char commit_name[60];
strcpy(commit_name, sha1_to_hex(commit));
name = commit_name;
}
+ /* Root commit? */
+ if (show_root_diff && memcmp(buf + 46, "parent ", 7)) {
+ header = generate_header(name, "root", buf, size);
+ diff_root_tree(commit, "");
+ }
+
+ /* More than one parent? */
+ if (ignore_merges) {
+ if (!memcmp(buf + 46 + 48, "parent ", 7))
+ return 0;
+ }
+
offset = 46;
while (offset + 48 < size && !memcmp(buf + offset, "parent ", 7)) {
unsigned char parent[20];
return -1;
header = generate_header(name, sha1_to_hex(parent), buf, size);
diff_tree_sha1_top(parent, commit, "");
- if (!header && verbose_header)
+ if (!header && verbose_header) {
header_prefix = "\ndiff-tree ";
+ /*
+ * Don't print multiple merge entries if we
+ * don't print the diffs.
+ */
+ }
offset += 48;
}
return 0;
}
static char *diff_tree_usage =
-"git-diff-tree [-p] [-r] [-z] [--stdin] [-M] [-m] [-s] [-v] <tree-ish> <tree-ish>";
+"git-diff-tree [-p] [-r] [-z] [--stdin] [-m] [-s] [-v] [--pretty] [-t] [-R] [-B] [-M] [-C] [--find-copies-header] [-O<orderfile>] [-S<string>] [--pickaxe-all] <tree-ish> <tree-ish>";
-int main(int argc, char **argv)
+static enum cmit_fmt get_commit_format(const char *arg)
+{
+ if (!*arg)
+ return CMIT_FMT_DEFAULT;
+ if (!strcmp(arg, "=raw"))
+ return CMIT_FMT_RAW;
+ if (!strcmp(arg, "=medium"))
+ return CMIT_FMT_MEDIUM;
+ if (!strcmp(arg, "=short"))
+ return CMIT_FMT_SHORT;
+ usage(diff_tree_usage);
+}
+
+int main(int argc, const char **argv)
{
int nr_sha1;
char line[1000];
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")) {
+ diff_setup_opt |= DIFF_SETUP_REVERSE;
+ continue;
+ }
if (!strcmp(arg, "-p")) {
- recursive = generate_patch = 1;
+ 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 = DIFF_DETECT_RENAME;
+ if ((diff_score_opt = diff_scoreopt_parse(arg)) == -1)
+ usage(diff_tree_usage);
continue;
}
- if (!strcmp(arg, "-M")) {
- detect_rename = recursive = generate_patch = 1;
+ if (!strncmp(arg, "-C", 2)) {
+ 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, "-z")) {
- line_termination = '\0';
+ diff_output_format = DIFF_FORMAT_MACHINE;
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;
}
+ if (!strcmp(arg, "--root")) {
+ show_root_diff = 1;
+ continue;
+ }
usage(diff_tree_usage);
}
+ if (find_copies_harder && detect_rename != DIFF_DETECT_COPY)
+ usage(diff_tree_usage);
if (argc > 0) {
int 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);