X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=diff-tree.c;h=851722037df936c2b4e0ab6a9389291e74d5ae60;hb=5f93926c3c5c4fe1def39de82076bc69ec89c058;hp=34c868d3ab9b28652d70f3546f47d3adfc62cba5;hpb=5c97558c9a813a0a775c438a79cfc438def00c22;p=git.git diff --git a/diff-tree.c b/diff-tree.c index 34c868d3..85172203 100644 --- a/diff-tree.c +++ b/diff-tree.c @@ -1,21 +1,23 @@ -#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 detect_rename = 0; + +static struct diff_options diff_options; + 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); @@ -37,10 +39,12 @@ 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; } @@ -64,14 +68,6 @@ 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; @@ -83,21 +79,13 @@ static void show_file(const char *prefix, void *tree, unsigned long size, const 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(&diff_options, prefix[0], mode, sha1, base, path); } static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, unsigned long size2, const char *base) @@ -106,14 +94,13 @@ static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, uns 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; @@ -122,7 +109,8 @@ 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 (!diff_options.find_copies_harder && + !memcmp(sha1, sha2, 20) && mode1 == mode2) return 0; /* @@ -138,29 +126,15 @@ 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(&diff_options, 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(&diff_options, mode1, mode2, sha1, sha2, base, path1); return 0; } @@ -259,7 +233,7 @@ static int diff_tree(void *tree1, unsigned long size1, void *tree2, unsigned lon update_tree_entry(&tree2, &size2); continue; } - die("diff-tree: internal error"); + die("git-diff-tree: internal error"); } return 0; } @@ -270,10 +244,10 @@ static int diff_tree_sha1(const unsigned char *old, const unsigned char *new, co 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); @@ -282,85 +256,66 @@ static int diff_tree_sha1(const unsigned char *old, const unsigned char *new, co return retval; } -static int diff_tree_sha1_top(const unsigned char *old, - const unsigned char *new, const char *base) +static void call_diff_setup_done(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_done(&diff_options); } -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(&diff_options); + if (diff_queue_is_empty()) { + int saved_fmt = diff_options.output_format; + diff_options.output_format = DIFF_FORMAT_NO_OUTPUT; + diff_flush(&diff_options); + diff_options.output_format = saved_fmt; + return 0; } - return ret; + if (header) { + printf("%s%c", header, diff_options.line_termination); + header = NULL; + } + diff_flush(&diff_options); + 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_done(); + ret = diff_tree_sha1(old, new, base); + call_diff_flush(); + return ret; } -static char *generate_header(const char *commit, const char *parent, const char *msg, unsigned long len) +static int diff_root_tree(const unsigned char *new, const char *base) { - static char this_header[1000]; + int retval; + void *tree; + unsigned long size; + + call_diff_setup_done(); + 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 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; - 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; } @@ -372,18 +327,24 @@ static int diff_tree_commit(const unsigned char *commit, const char *name) 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]; @@ -391,10 +352,16 @@ 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; } + free(buf); return 0; } @@ -420,18 +387,33 @@ static int diff_tree_stdin(char *line) return diff_tree_commit(commit, line); } -static char *diff_tree_usage = -"diff-tree [-p] [-r] [-z] [--stdin] [-M] [-m] [-s] [-v] "; +static int count_paths(const char **paths) +{ + int i = 0; + while (*paths++) + i++; + return i; +} -int main(int argc, char **argv) +static const char diff_tree_usage[] = +"git-diff-tree [--stdin] [-m] [-s] [-v] [--pretty] [-t] " +"[] " +COMMON_DIFF_OPTIONS_HELP; + +int main(int argc, const char **argv) { int nr_sha1; char line[1000]; unsigned char sha1[2][20]; + const char *prefix = setup_git_directory(); + git_config(git_default_config); nr_sha1 = 0; + diff_setup(&diff_options); + for (;;) { - char *arg; + int diff_opt_cnt; + const char *arg; argv++; argc--; @@ -447,6 +429,16 @@ int main(int argc, char **argv) break; } + diff_opt_cnt = diff_opt_parse(&diff_options, argv, argc); + if (diff_opt_cnt < 0) + usage(diff_tree_usage); + else if (diff_opt_cnt) { + argv += diff_opt_cnt - 1; + argc -= diff_opt_cnt - 1; + continue; + } + + if (!strcmp(arg, "--")) { argv++; argc--; @@ -456,43 +448,43 @@ int main(int argc, char **argv) recursive = 1; continue; } - if (!strcmp(arg, "-p")) { - recursive = generate_patch = 1; - continue; - } - if (!strcmp(arg, "-M")) { - detect_rename = recursive = generate_patch = 1; - continue; - } - if (!strcmp(arg, "-z")) { - line_termination = '\0'; + if (!strcmp(arg, "-t")) { + recursive = show_tree_entry_in_recursive = 1; continue; } if (!strcmp(arg, "-m")) { ignore_merges = 0; continue; } - if (!strcmp(arg, "-s")) { - silent = 1; + if (!strcmp(arg, "-v")) { + verbose_header = 1; + header_prefix = "diff-tree "; continue; } - if (!strcmp(arg, "-v")) { + 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 (diff_options.output_format == DIFF_FORMAT_PATCH) + recursive = 1; - 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