From: Junio C Hamano Date: Tue, 28 Apr 2009 07:46:20 +0000 (-0700) Subject: Merge branch 'maint-1.6.0' into maint-1.6.1 X-Git-Tag: v1.6.1.4~5 X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/3e73cb2f48cc4044905455a9936692f967a0f9b3?ds=inline;hp=-c Merge branch 'maint-1.6.0' into maint-1.6.1 * maint-1.6.0: grep: fix segfault when "git grep '('" is given Documentation: fix a grammatical error in api-builtin.txt builtin-merge: fix a typo in an error message --- 3e73cb2f48cc4044905455a9936692f967a0f9b3 diff --combined builtin-merge.c index cf869751b4,370d0034ca..2179e0686d --- a/builtin-merge.c +++ b/builtin-merge.c @@@ -22,8 -22,6 +22,8 @@@ #include "log-tree.h" #include "color.h" #include "rerere.h" +#include "help.h" +#include "merge-recursive.h" #define DEFAULT_TWOHEAD (1<<0) #define DEFAULT_OCTOPUS (1<<1) @@@ -50,7 -48,6 +50,7 @@@ static unsigned char head[20], stash[20 static struct strategy **use_strategies; static size_t use_strategies_nr, use_strategies_alloc; static const char *branch; +static int verbosity; static struct strategy all_strategy[] = { { "recursive", DEFAULT_TWOHEAD | NO_TRIVIAL }, @@@ -80,9 -77,7 +80,9 @@@ static int option_parse_message(const s static struct strategy *get_strategy(const char *name) { int i; - struct strbuf err; + struct strategy *ret; + static struct cmdnames main_cmds, other_cmds; + static int loaded; if (!name) return NULL; @@@ -91,42 -86,12 +91,42 @@@ if (!strcmp(name, all_strategy[i].name)) return &all_strategy[i]; - strbuf_init(&err, 0); - for (i = 0; i < ARRAY_SIZE(all_strategy); i++) - strbuf_addf(&err, " %s", all_strategy[i].name); - fprintf(stderr, "Could not find merge strategy '%s'.\n", name); - fprintf(stderr, "Available strategies are:%s.\n", err.buf); - exit(1); + if (!loaded) { + struct cmdnames not_strategies; + loaded = 1; + + memset(¬_strategies, 0, sizeof(struct cmdnames)); + load_command_list("git-merge-", &main_cmds, &other_cmds); + for (i = 0; i < main_cmds.cnt; i++) { + int j, found = 0; + struct cmdname *ent = main_cmds.names[i]; + for (j = 0; j < ARRAY_SIZE(all_strategy); j++) + if (!strncmp(ent->name, all_strategy[j].name, ent->len) + && !all_strategy[j].name[ent->len]) + found = 1; + if (!found) + add_cmdname(¬_strategies, ent->name, ent->len); + exclude_cmds(&main_cmds, ¬_strategies); + } + } + if (!is_in_cmdlist(&main_cmds, name) && !is_in_cmdlist(&other_cmds, name)) { + fprintf(stderr, "Could not find merge strategy '%s'.\n", name); + fprintf(stderr, "Available strategies are:"); + for (i = 0; i < main_cmds.cnt; i++) + fprintf(stderr, " %s", main_cmds.names[i]->name); + fprintf(stderr, ".\n"); + if (other_cmds.cnt) { + fprintf(stderr, "Available custom strategies are:"); + for (i = 0; i < other_cmds.cnt; i++) + fprintf(stderr, " %s", other_cmds.names[i]->name); + fprintf(stderr, ".\n"); + } + exit(1); + } + + ret = xcalloc(1, sizeof(struct strategy)); + ret->name = xstrdup(name); + return ret; } static void append_strategy(struct strategy *s) @@@ -172,7 -137,6 +172,7 @@@ static struct option builtin_merge_opti OPT_CALLBACK('m', "message", &merge_msg, "message", "message to be used for the merge commit (if any)", option_parse_message), + OPT__VERBOSITY(&verbosity), OPT_END() }; @@@ -181,7 -145,6 +181,7 @@@ static void drop_save(void { unlink(git_path("MERGE_HEAD")); unlink(git_path("MERGE_MSG")); + unlink(git_path("MERGE_MODE")); } static void save_state(void) @@@ -229,7 -192,7 +229,7 @@@ static void reset_hard(unsigned const c static void restore_state(void) { - struct strbuf sb; + struct strbuf sb = STRBUF_INIT; const char *args[] = { "stash", "apply", NULL, NULL }; if (is_null_sha1(stash)) @@@ -237,6 -200,7 +237,6 @@@ reset_hard(head, 1); - strbuf_init(&sb, 0); args[2] = sha1_to_hex(stash); /* @@@ -252,8 -216,7 +252,8 @@@ /* This is called when no merge was necessary. */ static void finish_up_to_date(const char *msg) { - printf("%s%s\n", squash ? " (nothing to squash)" : "", msg); + if (verbosity >= 0) + printf("%s%s\n", squash ? " (nothing to squash)" : "", msg); drop_save(); } @@@ -261,7 -224,7 +261,7 @@@ static void squash_message(void { struct rev_info rev; struct commit *commit; - struct strbuf out; + struct strbuf out = STRBUF_INIT; struct commit_list *j; int fd; @@@ -285,6 -248,7 +285,6 @@@ if (prepare_revision_walk(&rev)) die("revision walk setup failed"); - strbuf_init(&out, 0); strbuf_addstr(&out, "Squashed commit of the following:\n"); while ((commit = get_revision(&rev)) != NULL) { strbuf_addch(&out, '\n'); @@@ -293,10 -257,8 +293,10 @@@ pretty_print_commit(rev.commit_format, commit, &out, rev.abbrev, NULL, NULL, rev.date_mode, 0); } - write(fd, out.buf, out.len); - close(fd); + if (write(fd, out.buf, out.len) < 0) + die("Writing SQUASH_MSG: %s", strerror(errno)); + if (close(fd)) + die("Finishing SQUASH_MSG: %s", strerror(errno)); strbuf_release(&out); } @@@ -331,20 -293,20 +331,20 @@@ static int run_hook(const char *name static void finish(const unsigned char *new_head, const char *msg) { - struct strbuf reflog_message; + struct strbuf reflog_message = STRBUF_INIT; - strbuf_init(&reflog_message, 0); if (!msg) strbuf_addstr(&reflog_message, getenv("GIT_REFLOG_ACTION")); else { - printf("%s\n", msg); + if (verbosity >= 0) + printf("%s\n", msg); strbuf_addf(&reflog_message, "%s: %s", getenv("GIT_REFLOG_ACTION"), msg); } if (squash) { squash_message(); } else { - if (!merge_msg.len) + if (verbosity >= 0 && !merge_msg.len) printf("No merge message -- not updating HEAD\n"); else { const char *argv_gc_auto[] = { "gc", "--auto", NULL }; @@@ -384,7 -346,7 +384,7 @@@ static void merge_name(const char *remo { struct object *remote_head; unsigned char branch_head[20], buf_sha[20]; - struct strbuf buf; + struct strbuf buf = STRBUF_INIT; const char *ptr; int len, early; @@@ -393,6 -355,7 +393,6 @@@ if (!remote_head) die("'%s' does not point to a commit", remote); - strbuf_init(&buf, 0); strbuf_addstr(&buf, "refs/heads/"); strbuf_addstr(&buf, remote); resolve_ref(buf.buf, branch_head, 0, 0); @@@ -447,9 -410,10 +447,9 @@@ if (!strcmp(remote, "FETCH_HEAD") && !access(git_path("FETCH_HEAD"), R_OK)) { FILE *fp; - struct strbuf line; + struct strbuf line = STRBUF_INIT; char *ptr; - strbuf_init(&line, 0); fp = fopen(git_path("FETCH_HEAD"), "r"); if (!fp) die("could not open %s for reading: %s", @@@ -547,76 -511,30 +547,76 @@@ static int try_merge_strategy(const cha const char **args; int i = 0, ret; struct commit_list *j; - struct strbuf buf; - - args = xmalloc((4 + commit_list_count(common) + - commit_list_count(remoteheads)) * sizeof(char *)); - strbuf_init(&buf, 0); - strbuf_addf(&buf, "merge-%s", strategy); - args[i++] = buf.buf; - for (j = common; j; j = j->next) - args[i++] = xstrdup(sha1_to_hex(j->item->object.sha1)); - args[i++] = "--"; - args[i++] = head_arg; - for (j = remoteheads; j; j = j->next) - args[i++] = xstrdup(sha1_to_hex(j->item->object.sha1)); - args[i] = NULL; - ret = run_command_v_opt(args, RUN_GIT_CMD); - strbuf_release(&buf); - i = 1; - for (j = common; j; j = j->next) - free((void *)args[i++]); - i += 2; - for (j = remoteheads; j; j = j->next) - free((void *)args[i++]); - free(args); - return -ret; + struct strbuf buf = STRBUF_INIT; + int index_fd; + struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); + + index_fd = hold_locked_index(lock, 1); + refresh_cache(REFRESH_QUIET); + if (active_cache_changed && + (write_cache(index_fd, active_cache, active_nr) || + commit_locked_index(lock))) + return error("Unable to write index."); + rollback_lock_file(lock); + + if (!strcmp(strategy, "recursive") || !strcmp(strategy, "subtree")) { + int clean; + struct commit *result; + struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); + int index_fd; + struct commit_list *reversed = NULL; + struct merge_options o; + + if (remoteheads->next) { + error("Not handling anything other than two heads merge."); + return 2; + } + + init_merge_options(&o); + if (!strcmp(strategy, "subtree")) + o.subtree_merge = 1; + + o.branch1 = head_arg; + o.branch2 = remoteheads->item->util; + + for (j = common; j; j = j->next) + commit_list_insert(j->item, &reversed); + + index_fd = hold_locked_index(lock, 1); + clean = merge_recursive(&o, lookup_commit(head), + remoteheads->item, reversed, &result); + if (active_cache_changed && + (write_cache(index_fd, active_cache, active_nr) || + commit_locked_index(lock))) + die ("unable to write %s", get_index_file()); + rollback_lock_file(lock); + return clean ? 0 : 1; + } else { + args = xmalloc((4 + commit_list_count(common) + + commit_list_count(remoteheads)) * sizeof(char *)); + strbuf_addf(&buf, "merge-%s", strategy); + args[i++] = buf.buf; + for (j = common; j; j = j->next) + args[i++] = xstrdup(sha1_to_hex(j->item->object.sha1)); + args[i++] = "--"; + args[i++] = head_arg; + for (j = remoteheads; j; j = j->next) + args[i++] = xstrdup(sha1_to_hex(j->item->object.sha1)); + args[i] = NULL; + ret = run_command_v_opt(args, RUN_GIT_CMD); + strbuf_release(&buf); + i = 1; + for (j = common; j; j = j->next) + free((void *)args[i++]); + i += 2; + for (j = remoteheads; j; j = j->next) + free((void *)args[i++]); + free(args); + discard_cache(); + if (read_cache() < 0) + die("failed to read the cache"); + return -ret; + } } static void count_diff_files(struct diff_queue_struct *q, @@@ -741,7 -659,7 +741,7 @@@ static int merge_trivial(void parent->next = xmalloc(sizeof(*parent->next)); parent->next->item = remoteheads->item; parent->next->next = NULL; - commit_tree(merge_msg.buf, result_tree, parent, result_commit); + commit_tree(merge_msg.buf, result_tree, parent, result_commit, NULL); finish(result_commit, "In-index merge"); drop_save(); return 0; @@@ -770,7 -688,7 +770,7 @@@ static int finish_automerge(struct comm } free_commit_list(remoteheads); strbuf_addch(&merge_msg, '\n'); - commit_tree(merge_msg.buf, result_tree, parents, result_commit); + commit_tree(merge_msg.buf, result_tree, parents, result_commit, NULL); strbuf_addf(&buf, "Merge made by %s.", wt_strategy); finish(result_commit, buf.buf); strbuf_release(&buf); @@@ -785,7 -703,7 +785,7 @@@ static int suggest_conflicts(void fp = fopen(git_path("MERGE_MSG"), "a"); if (!fp) - die("Could open %s for writing", git_path("MERGE_MSG")); + die("Could not open %s for writing", git_path("MERGE_MSG")); fprintf(fp, "\nConflicts:\n"); for (pos = 0; pos < active_nr; pos++) { struct cache_entry *ce = active_cache[pos]; @@@ -827,6 -745,10 +827,6 @@@ static int evaluate_result(void int cnt = 0; struct rev_info rev; - discard_cache(); - if (read_cache() < 0) - die("failed to read the cache"); - /* Check how many files differ. */ init_revisions(&rev, ""); setup_revisions(0, NULL, &rev, NULL); @@@ -848,7 -770,7 +848,7 @@@ int cmd_merge(int argc, const char **argv, const char *prefix) { unsigned char result_tree[20]; - struct strbuf buf; + struct strbuf buf = STRBUF_INIT; const char *head_arg; int flag, head_invalid = 0, i; int best_cnt = -1, merge_was_ok = 0, automerge_was_ok = 0; @@@ -878,8 -800,6 +878,8 @@@ argc = parse_options(argc, argv, builtin_merge_options, builtin_merge_usage, 0); + if (verbosity < 0) + show_diffstat = 0; if (squash) { if (!allow_fast_forward) @@@ -899,6 -819,7 +899,6 @@@ * Traditional format never would have "-m" so it is an * additional safety measure to check for it. */ - strbuf_init(&buf, 0); if (!have_message && is_old_style_invocation(argc, argv)) { strbuf_addstr(&merge_msg, argv[0]); @@@ -915,11 -836,6 +915,11 @@@ if (argc != 1) die("Can merge only exactly one commit into " "empty head"); + if (squash) + die("Squash commit into empty head not supported yet"); + if (!allow_fast_forward) + die("Non-fast-forward commit does not make sense into " + "an empty head"); remote_head = peel_to_type(argv[0], 0, NULL, OBJ_COMMIT); if (!remote_head) die("%s - not something we can merge", argv[0]); @@@ -928,7 -844,7 +928,7 @@@ reset_hard(remote_head->sha1, 0); return 0; } else { - struct strbuf msg; + struct strbuf msg = STRBUF_INIT; /* We are invoked directly as the first-class UI. */ head_arg = "HEAD"; @@@ -941,6 -857,7 +941,6 @@@ * codepath so we discard the error in this * loop. */ - strbuf_init(&msg, 0); for (i = 0; i < argc; i++) merge_name(argv[i], &msg); fmt_merge_msg(option_log, &msg, &merge_msg); @@@ -960,14 -877,12 +960,14 @@@ for (i = 0; i < argc; i++) { struct object *o; + struct commit *commit; o = peel_to_type(argv[i], 0, NULL, OBJ_COMMIT); if (!o) die("%s - not something we can merge", argv[i]); - remotes = &commit_list_insert(lookup_commit(o->sha1), - remotes)->next; + commit = lookup_commit(o->sha1); + commit->util = (void *)argv[i]; + remotes = &commit_list_insert(commit, remotes)->next; strbuf_addf(&buf, "GITHEAD_%s", sha1_to_hex(o->sha1)); setenv(buf.buf, argv[i], 1); @@@ -1015,17 -930,17 +1015,17 @@@ !common->next && !hashcmp(common->item->object.sha1, head)) { /* Again the most common case of merging one remote. */ - struct strbuf msg; + struct strbuf msg = STRBUF_INIT; struct object *o; char hex[41]; strcpy(hex, find_unique_abbrev(head, DEFAULT_ABBREV)); - printf("Updating %s..%s\n", - hex, - find_unique_abbrev(remoteheads->item->object.sha1, - DEFAULT_ABBREV)); - strbuf_init(&msg, 0); + if (verbosity >= 0) + printf("Updating %s..%s\n", + hex, + find_unique_abbrev(remoteheads->item->object.sha1, + DEFAULT_ABBREV)); strbuf_addstr(&msg, "Fast forward"); if (have_message) strbuf_addstr(&msg, @@@ -1161,6 -1076,7 +1161,6 @@@ } /* Automerge succeeded. */ - discard_cache(); write_tree_trivial(result_tree); automerge_was_ok = 1; break; @@@ -1220,15 -1136,6 +1220,15 @@@ merge_msg.len) die("Could not write to %s", git_path("MERGE_MSG")); close(fd); + fd = open(git_path("MERGE_MODE"), O_WRONLY | O_CREAT | O_TRUNC, 0666); + if (fd < 0) + die("Could open %s for writing", git_path("MERGE_MODE")); + strbuf_reset(&buf); + if (!allow_fast_forward) + strbuf_addf(&buf, "no-ff"); + if (write_in_full(fd, buf.buf, buf.len) != buf.len) + die("Could not write to %s", git_path("MERGE_MODE")); + close(fd); } if (merge_was_ok) { diff --combined grep.c index 600f69f2fe,a4edacad8b..704facf996 --- a/grep.c +++ b/grep.c @@@ -54,6 -54,8 +54,8 @@@ static struct grep_expr *compile_patter struct grep_expr *x; p = *list; + if (!p) + return NULL; switch (p->token) { case GREP_PATTERN: /* atom */ case GREP_PATTERN_HEAD: @@@ -66,8 -68,6 +68,6 @@@ case GREP_OPEN_PAREN: *list = p->next; x = compile_pattern_or(list); - if (!x) - return NULL; if (!*list || (*list)->token != GREP_CLOSE_PAREN) die("unmatched parenthesis"); *list = (*list)->next; @@@ -83,6 -83,8 +83,8 @@@ static struct grep_expr *compile_patter struct grep_expr *x; p = *list; + if (!p) + return NULL; switch (p->token) { case GREP_NOT: if (!p->next) @@@ -239,8 -241,6 +241,8 @@@ static int word_char(char ch static void show_line(struct grep_opt *opt, const char *bol, const char *eol, const char *name, unsigned lno, char sign) { + if (opt->null_following_name) + sign = '\0'; if (opt->pathname) printf("%s%c", name, sign); if (opt->linenum) @@@ -248,11 -248,6 +250,11 @@@ printf("%.*s\n", (int)(eol-bol), bol); } +static void show_name(struct grep_opt *opt, const char *name) +{ + printf("%s%c", name, opt->null_following_name ? '\0' : '\n'); +} + static int fixmatch(const char *pattern, char *line, regmatch_t *match) { char *hit = strstr(line, pattern); @@@ -368,6 -363,8 +370,8 @@@ static int match_expr_eval(struct grep_ { int h = 0; + if (!x) + die("Not a valid grep expression"); switch (x->node) { case GREP_NODE_ATOM: h = match_one_pattern(o, x->u.atom, bol, eol, ctx); @@@ -496,7 -493,7 +500,7 @@@ static int grep_buffer_1(struct grep_op return 1; } if (opt->name_only) { - printf("%s\n", name); + show_name(opt, name); return 1; } /* Hit at this line. If we haven't shown the @@@ -562,7 -559,7 +566,7 @@@ return 0; if (opt->unmatch_name_only) { /* We did not see any hit, so we want to show this */ - printf("%s\n", name); + show_name(opt, name); return 1; } @@@ -572,8 -569,7 +576,8 @@@ * make it another option? For now suppress them. */ if (opt->count && count) - printf("%s:%u\n", name, count); + printf("%s%c%u\n", name, + opt->null_following_name ? '\0' : ':', count); return !!last_hit; } diff --combined t/t7002-grep.sh index c4938544d4,087bacb897..b81593780a --- a/t/t7002-grep.sh +++ b/t/t7002-grep.sh @@@ -26,6 -26,10 +26,10 @@@ test_expect_success setup git commit -m initial ' + test_expect_success 'grep should not segfault with a bad input' ' + test_must_fail git grep "(" + ' + for H in HEAD '' do case "$H" in @@@ -109,7 -113,7 +113,7 @@@ ' test_expect_success "grep -c $L (no /dev/null)" ' - ! git grep -c test $H | grep -q /dev/null + ! git grep -c test $H | grep /dev/null ' done @@@ -161,14 -165,7 +165,14 @@@ test_expect_success 'log grep (6)' git log --author=-0700 --pretty=tformat:%s >actual && >expect && test_cmp expect actual +' +test_expect_success 'grep with CE_VALID file' ' + git update-index --assume-unchanged t/t && + rm t/t && + test "$(git grep --no-ext-grep t)" = "t/t:test" && + git update-index --no-assume-unchanged t/t && + git checkout t/t ' test_done