X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=diff-tree.c;h=fc87902a3d2e6a53a619d603993a73893d4a4ae8;hb=c80522e30fdc190f8c8c7fc983bbe040a1b03e93;hp=aa4944686bdb2a10b61b7a1819e960c6cce4a7bb;hpb=427dcb4bca49117664d9428fd4e86483f516d703;p=git.git diff --git a/diff-tree.c b/diff-tree.c index aa494468..fc87902a 100644 --- a/diff-tree.c +++ b/diff-tree.c @@ -1,24 +1,32 @@ #include #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); @@ -40,10 +48,12 @@ static const unsigned char *extract(void *tree, unsigned long size, const char * 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; } @@ -67,14 +77,6 @@ static void show_file(const char *prefix, void *tree, unsigned long size, const 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; @@ -116,7 +118,7 @@ static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, uns 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; /* @@ -132,18 +134,13 @@ static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, uns 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; } @@ -266,16 +263,39 @@ static int diff_tree_sha1(const unsigned char *old, const unsigned char *new, co 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, 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; } @@ -285,85 +305,26 @@ static int diff_root_tree(const unsigned char *new, const char *base) void *tree; unsigned long size; - diff_setup(detect_rename, diff_score_opt, 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[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; - } - 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; } @@ -400,8 +361,13 @@ static int diff_tree_commit(const unsigned char *commit, const char *name) 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; @@ -429,18 +395,29 @@ static int diff_tree_stdin(char *line) return diff_tree_commit(commit, line); } -static char *diff_tree_usage = -"git-diff-tree [-p] [-r] [-z] [--stdin] [-M] [-C] [-R] [-m] [-s] [-v] "; +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_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--; @@ -465,27 +442,62 @@ int main(int argc, char **argv) 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")) { @@ -493,7 +505,7 @@ int main(int argc, char **argv) continue; } if (!strcmp(arg, "-s")) { - silent = 1; + diff_output_format = DIFF_FORMAT_NO_OUTPUT; continue; } if (!strcmp(arg, "-v")) { @@ -501,6 +513,12 @@ int main(int argc, char **argv) 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; @@ -511,12 +529,14 @@ int main(int argc, char **argv) } 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