diff options
Diffstat (limited to 'log-tree.c')
| -rw-r--r-- | log-tree.c | 815 |
1 files changed, 815 insertions, 0 deletions
diff --git a/log-tree.c b/log-tree.c new file mode 100644 index 0000000000..8534d91826 --- /dev/null +++ b/log-tree.c @@ -0,0 +1,815 @@ +#include "cache.h" +#include "diff.h" +#include "commit.h" +#include "tag.h" +#include "graph.h" +#include "log-tree.h" +#include "reflog-walk.h" +#include "refs.h" +#include "string-list.h" +#include "color.h" +#include "gpg-interface.h" +#include "sequencer.h" +#include "line-log.h" + +struct decoration name_decoration = { "object names" }; + +enum decoration_type { + DECORATION_NONE = 0, + DECORATION_REF_LOCAL, + DECORATION_REF_REMOTE, + DECORATION_REF_TAG, + DECORATION_REF_STASH, + DECORATION_REF_HEAD, + DECORATION_GRAFTED, +}; + +static char decoration_colors[][COLOR_MAXLEN] = { + GIT_COLOR_RESET, + GIT_COLOR_BOLD_GREEN, /* REF_LOCAL */ + GIT_COLOR_BOLD_RED, /* REF_REMOTE */ + GIT_COLOR_BOLD_YELLOW, /* REF_TAG */ + GIT_COLOR_BOLD_MAGENTA, /* REF_STASH */ + GIT_COLOR_BOLD_CYAN, /* REF_HEAD */ + GIT_COLOR_BOLD_BLUE, /* GRAFTED */ +}; + +static const char *decorate_get_color(int decorate_use_color, enum decoration_type ix) +{ + if (want_color(decorate_use_color)) + return decoration_colors[ix]; + return ""; +} + +static int parse_decorate_color_slot(const char *slot) +{ + /* + * We're comparing with 'ignore-case' on + * (because config.c sets them all tolower), + * but let's match the letters in the literal + * string values here with how they are + * documented in Documentation/config.txt, for + * consistency. + * + * We love being consistent, don't we? + */ + if (!strcasecmp(slot, "branch")) + return DECORATION_REF_LOCAL; + if (!strcasecmp(slot, "remoteBranch")) + return DECORATION_REF_REMOTE; + if (!strcasecmp(slot, "tag")) + return DECORATION_REF_TAG; + if (!strcasecmp(slot, "stash")) + return DECORATION_REF_STASH; + if (!strcasecmp(slot, "HEAD")) + return DECORATION_REF_HEAD; + return -1; +} + +int parse_decorate_color_config(const char *var, const int ofs, const char *value) +{ + int slot = parse_decorate_color_slot(var + ofs); + if (slot < 0) + return 0; + if (!value) + return config_error_nonbool(var); + color_parse(value, var, decoration_colors[slot]); + return 0; +} + +/* + * log-tree.c uses DIFF_OPT_TST for determining whether to use color + * for showing the commit sha1, use the same check for --decorate + */ +#define decorate_get_color_opt(o, ix) \ + decorate_get_color((o)->use_color, ix) + +static void add_name_decoration(enum decoration_type type, const char *name, struct object *obj) +{ + int nlen = strlen(name); + struct name_decoration *res = xmalloc(sizeof(struct name_decoration) + nlen); + memcpy(res->name, name, nlen + 1); + res->type = type; + res->next = add_decoration(&name_decoration, obj, res); +} + +static int add_ref_decoration(const char *refname, const unsigned char *sha1, int flags, void *cb_data) +{ + struct object *obj; + enum decoration_type type = DECORATION_NONE; + + if (!prefixcmp(refname, "refs/replace/")) { + unsigned char original_sha1[20]; + if (!read_replace_refs) + return 0; + if (get_sha1_hex(refname + 13, original_sha1)) { + warning("invalid replace ref %s", refname); + return 0; + } + obj = parse_object(original_sha1); + if (obj) + add_name_decoration(DECORATION_GRAFTED, "replaced", obj); + return 0; + } + + obj = parse_object(sha1); + if (!obj) + return 0; + + if (!prefixcmp(refname, "refs/heads/")) + type = DECORATION_REF_LOCAL; + else if (!prefixcmp(refname, "refs/remotes/")) + type = DECORATION_REF_REMOTE; + else if (!prefixcmp(refname, "refs/tags/")) + type = DECORATION_REF_TAG; + else if (!strcmp(refname, "refs/stash")) + type = DECORATION_REF_STASH; + else if (!strcmp(refname, "HEAD")) + type = DECORATION_REF_HEAD; + + if (!cb_data || *(int *)cb_data == DECORATE_SHORT_REFS) + refname = prettify_refname(refname); + add_name_decoration(type, refname, obj); + while (obj->type == OBJ_TAG) { + obj = ((struct tag *)obj)->tagged; + if (!obj) + break; + add_name_decoration(DECORATION_REF_TAG, refname, obj); + } + return 0; +} + +static int add_graft_decoration(const struct commit_graft *graft, void *cb_data) +{ + struct commit *commit = lookup_commit(graft->sha1); + if (!commit) + return 0; + add_name_decoration(DECORATION_GRAFTED, "grafted", &commit->object); + return 0; +} + +void load_ref_decorations(int flags) +{ + static int loaded; + if (!loaded) { + loaded = 1; + for_each_ref(add_ref_decoration, &flags); + head_ref(add_ref_decoration, &flags); + for_each_commit_graft(add_graft_decoration, NULL); + } +} + +static void show_parents(struct commit *commit, int abbrev) +{ + struct commit_list *p; + for (p = commit->parents; p ; p = p->next) { + struct commit *parent = p->item; + printf(" %s", find_unique_abbrev(parent->object.sha1, abbrev)); + } +} + +static void show_children(struct rev_info *opt, struct commit *commit, int abbrev) +{ + struct commit_list *p = lookup_decoration(&opt->children, &commit->object); + for ( ; p; p = p->next) { + printf(" %s", find_unique_abbrev(p->item->object.sha1, abbrev)); + } +} + +/* + * The caller makes sure there is no funny color before + * calling. format_decorations makes sure the same after return. + */ +void format_decorations(struct strbuf *sb, + const struct commit *commit, + int use_color) +{ + const char *prefix; + struct name_decoration *decoration; + const char *color_commit = + diff_get_color(use_color, DIFF_COMMIT); + const char *color_reset = + decorate_get_color(use_color, DECORATION_NONE); + + decoration = lookup_decoration(&name_decoration, &commit->object); + if (!decoration) + return; + prefix = " ("; + while (decoration) { + strbuf_addstr(sb, color_commit); + strbuf_addstr(sb, prefix); + strbuf_addstr(sb, decorate_get_color(use_color, decoration->type)); + if (decoration->type == DECORATION_REF_TAG) + strbuf_addstr(sb, "tag: "); + strbuf_addstr(sb, decoration->name); + strbuf_addstr(sb, color_reset); + prefix = ", "; + decoration = decoration->next; + } + strbuf_addstr(sb, color_commit); + strbuf_addch(sb, ')'); + strbuf_addstr(sb, color_reset); +} + +void show_decorations(struct rev_info *opt, struct commit *commit) +{ + struct strbuf sb = STRBUF_INIT; + + if (opt->show_source && commit->util) + printf("\t%s", (char *) commit->util); + if (!opt->show_decorations) + return; + format_decorations(&sb, commit, opt->diffopt.use_color); + fputs(sb.buf, stdout); + strbuf_release(&sb); +} + +static unsigned int digits_in_number(unsigned int number) +{ + unsigned int i = 10, result = 1; + while (i <= number) { + i *= 10; + result++; + } + return result; +} + +void fmt_output_subject(struct strbuf *filename, + const char *subject, + struct rev_info *info) +{ + const char *suffix = info->patch_suffix; + int nr = info->nr; + int start_len = filename->len; + int max_len = start_len + FORMAT_PATCH_NAME_MAX - (strlen(suffix) + 1); + + if (0 < info->reroll_count) + strbuf_addf(filename, "v%d-", info->reroll_count); + strbuf_addf(filename, "%04d-%s", nr, subject); + + if (max_len < filename->len) + strbuf_setlen(filename, max_len); + strbuf_addstr(filename, suffix); +} + +void fmt_output_commit(struct strbuf *filename, + struct commit *commit, + struct rev_info *info) +{ + struct pretty_print_context ctx = {0}; + struct strbuf subject = STRBUF_INIT; + + format_commit_message(commit, "%f", &subject, &ctx); + fmt_output_subject(filename, subject.buf, info); + strbuf_release(&subject); +} + +void log_write_email_headers(struct rev_info *opt, struct commit *commit, + const char **subject_p, + const char **extra_headers_p, + int *need_8bit_cte_p) +{ + const char *subject = NULL; + const char *extra_headers = opt->extra_headers; + const char *name = sha1_to_hex(commit->object.sha1); + + *need_8bit_cte_p = 0; /* unknown */ + if (opt->total > 0) { + static char buffer[64]; + snprintf(buffer, sizeof(buffer), + "Subject: [%s%s%0*d/%d] ", + opt->subject_prefix, + *opt->subject_prefix ? " " : "", + digits_in_number(opt->total), + opt->nr, opt->total); + subject = buffer; + } else if (opt->total == 0 && opt->subject_prefix && *opt->subject_prefix) { + static char buffer[256]; + snprintf(buffer, sizeof(buffer), + "Subject: [%s] ", + opt->subject_prefix); + subject = buffer; + } else { + subject = "Subject: "; + } + + printf("From %s Mon Sep 17 00:00:00 2001\n", name); + graph_show_oneline(opt->graph); + if (opt->message_id) { + printf("Message-Id: <%s>\n", opt->message_id); + graph_show_oneline(opt->graph); + } + if (opt->ref_message_ids && opt->ref_message_ids->nr > 0) { + int i, n; + n = opt->ref_message_ids->nr; + printf("In-Reply-To: <%s>\n", opt->ref_message_ids->items[n-1].string); + for (i = 0; i < n; i++) + printf("%s<%s>\n", (i > 0 ? "\t" : "References: "), + opt->ref_message_ids->items[i].string); + graph_show_oneline(opt->graph); + } + if (opt->mime_boundary) { + static char subject_buffer[1024]; + static char buffer[1024]; + struct strbuf filename = STRBUF_INIT; + *need_8bit_cte_p = -1; /* NEVER */ + snprintf(subject_buffer, sizeof(subject_buffer) - 1, + "%s" + "MIME-Version: 1.0\n" + "Content-Type: multipart/mixed;" + " boundary=\"%s%s\"\n" + "\n" + "This is a multi-part message in MIME " + "format.\n" + "--%s%s\n" + "Content-Type: text/plain; " + "charset=UTF-8; format=fixed\n" + "Content-Transfer-Encoding: 8bit\n\n", + extra_headers ? extra_headers : "", + mime_boundary_leader, opt->mime_boundary, + mime_boundary_leader, opt->mime_boundary); + extra_headers = subject_buffer; + + if (opt->numbered_files) + strbuf_addf(&filename, "%d", opt->nr); + else + fmt_output_commit(&filename, commit, opt); + snprintf(buffer, sizeof(buffer) - 1, + "\n--%s%s\n" + "Content-Type: text/x-patch;" + " name=\"%s\"\n" + "Content-Transfer-Encoding: 8bit\n" + "Content-Disposition: %s;" + " filename=\"%s\"\n\n", + mime_boundary_leader, opt->mime_boundary, + filename.buf, + opt->no_inline ? "attachment" : "inline", + filename.buf); + opt->diffopt.stat_sep = buffer; + strbuf_release(&filename); + } + *subject_p = subject; + *extra_headers_p = extra_headers; +} + +static void show_sig_lines(struct rev_info *opt, int status, const char *bol) +{ + const char *color, *reset, *eol; + + color = diff_get_color_opt(&opt->diffopt, + status ? DIFF_WHITESPACE : DIFF_FRAGINFO); + reset = diff_get_color_opt(&opt->diffopt, DIFF_RESET); + while (*bol) { + eol = strchrnul(bol, '\n'); + printf("%s%.*s%s%s", color, (int)(eol - bol), bol, reset, + *eol ? "\n" : ""); + bol = (*eol) ? (eol + 1) : eol; + } +} + +static void show_signature(struct rev_info *opt, struct commit *commit) +{ + struct strbuf payload = STRBUF_INIT; + struct strbuf signature = STRBUF_INIT; + struct strbuf gpg_output = STRBUF_INIT; + int status; + + if (parse_signed_commit(commit->object.sha1, &payload, &signature) <= 0) + goto out; + + status = verify_signed_buffer(payload.buf, payload.len, + signature.buf, signature.len, + &gpg_output, NULL); + if (status && !gpg_output.len) + strbuf_addstr(&gpg_output, "No signature\n"); + + show_sig_lines(opt, status, gpg_output.buf); + + out: + strbuf_release(&gpg_output); + strbuf_release(&payload); + strbuf_release(&signature); +} + +static int which_parent(const unsigned char *sha1, const struct commit *commit) +{ + int nth; + const struct commit_list *parent; + + for (nth = 0, parent = commit->parents; parent; parent = parent->next) { + if (!hashcmp(parent->item->object.sha1, sha1)) + return nth; + nth++; + } + return -1; +} + +static int is_common_merge(const struct commit *commit) +{ + return (commit->parents + && commit->parents->next + && !commit->parents->next->next); +} + +static void show_one_mergetag(struct rev_info *opt, + struct commit_extra_header *extra, + struct commit *commit) +{ + unsigned char sha1[20]; + struct tag *tag; + struct strbuf verify_message; + int status, nth; + size_t payload_size, gpg_message_offset; + + hash_sha1_file(extra->value, extra->len, typename(OBJ_TAG), sha1); + tag = lookup_tag(sha1); + if (!tag) + return; /* error message already given */ + + strbuf_init(&verify_message, 256); + if (parse_tag_buffer(tag, extra->value, extra->len)) + strbuf_addstr(&verify_message, "malformed mergetag\n"); + else if (is_common_merge(commit) && + !hashcmp(tag->tagged->sha1, + commit->parents->next->item->object.sha1)) + strbuf_addf(&verify_message, + "merged tag '%s'\n", tag->tag); + else if ((nth = which_parent(tag->tagged->sha1, commit)) < 0) + strbuf_addf(&verify_message, "tag %s names a non-parent %s\n", + tag->tag, tag->tagged->sha1); + else + strbuf_addf(&verify_message, + "parent #%d, tagged '%s'\n", nth + 1, tag->tag); + gpg_message_offset = verify_message.len; + + payload_size = parse_signature(extra->value, extra->len); + status = -1; + if (extra->len > payload_size) + if (verify_signed_buffer(extra->value, payload_size, + extra->value + payload_size, + extra->len - payload_size, + &verify_message, NULL)) { + if (verify_message.len <= gpg_message_offset) + strbuf_addstr(&verify_message, "No signature\n"); + else + status = 0; + } + + show_sig_lines(opt, status, verify_message.buf); + strbuf_release(&verify_message); +} + +static void show_mergetag(struct rev_info *opt, struct commit *commit) +{ + struct commit_extra_header *extra, *to_free; + + to_free = read_commit_extra_headers(commit, NULL); + for (extra = to_free; extra; extra = extra->next) { + if (strcmp(extra->key, "mergetag")) + continue; /* not a merge tag */ + show_one_mergetag(opt, extra, commit); + } + free_commit_extra_headers(to_free); +} + +void show_log(struct rev_info *opt) +{ + struct strbuf msgbuf = STRBUF_INIT; + struct log_info *log = opt->loginfo; + struct commit *commit = log->commit, *parent = log->parent; + int abbrev_commit = opt->abbrev_commit ? opt->abbrev : 40; + const char *extra_headers = opt->extra_headers; + struct pretty_print_context ctx = {0}; + + opt->loginfo = NULL; + if (!opt->verbose_header) { + graph_show_commit(opt->graph); + + if (!opt->graph) + put_revision_mark(opt, commit); + fputs(find_unique_abbrev(commit->object.sha1, abbrev_commit), stdout); + if (opt->print_parents) + show_parents(commit, abbrev_commit); + if (opt->children.name) + show_children(opt, commit, abbrev_commit); + show_decorations(opt, commit); + if (opt->graph && !graph_is_commit_finished(opt->graph)) { + putchar('\n'); + graph_show_remainder(opt->graph); + } + putchar(opt->diffopt.line_termination); + return; + } + + /* + * If use_terminator is set, we already handled any record termination + * at the end of the last record. + * Otherwise, add a diffopt.line_termination character before all + * entries but the first. (IOW, as a separator between entries) + */ + if (opt->shown_one && !opt->use_terminator) { + /* + * If entries are separated by a newline, the output + * should look human-readable. If the last entry ended + * with a newline, print the graph output before this + * newline. Otherwise it will end up as a completely blank + * line and will look like a gap in the graph. + * + * If the entry separator is not a newline, the output is + * primarily intended for programmatic consumption, and we + * never want the extra graph output before the entry + * separator. + */ + if (opt->diffopt.line_termination == '\n' && + !opt->missing_newline) + graph_show_padding(opt->graph); + putchar(opt->diffopt.line_termination); + } + opt->shown_one = 1; + + /* + * If the history graph was requested, + * print the graph, up to this commit's line + */ + graph_show_commit(opt->graph); + + /* + * Print header line of header.. + */ + + if (opt->commit_format == CMIT_FMT_EMAIL) { + log_write_email_headers(opt, commit, &ctx.subject, &extra_headers, + &ctx.need_8bit_cte); + } else if (opt->commit_format != CMIT_FMT_USERFORMAT) { + fputs(diff_get_color_opt(&opt->diffopt, DIFF_COMMIT), stdout); + if (opt->commit_format != CMIT_FMT_ONELINE) + fputs("commit ", stdout); + + if (!opt->graph) + put_revision_mark(opt, commit); + fputs(find_unique_abbrev(commit->object.sha1, abbrev_commit), + stdout); + if (opt->print_parents) + show_parents(commit, abbrev_commit); + if (opt->children.name) + show_children(opt, commit, abbrev_commit); + if (parent) + printf(" (from %s)", + find_unique_abbrev(parent->object.sha1, + abbrev_commit)); + fputs(diff_get_color_opt(&opt->diffopt, DIFF_RESET), stdout); + show_decorations(opt, commit); + if (opt->commit_format == CMIT_FMT_ONELINE) { + putchar(' '); + } else { + putchar('\n'); + graph_show_oneline(opt->graph); + } + if (opt->reflog_info) { + /* + * setup_revisions() ensures that opt->reflog_info + * and opt->graph cannot both be set, + * so we don't need to worry about printing the + * graph info here. + */ + show_reflog_message(opt->reflog_info, + opt->commit_format == CMIT_FMT_ONELINE, + opt->date_mode, + opt->date_mode_explicit); + if (opt->commit_format == CMIT_FMT_ONELINE) + return; + } + } + + if (opt->show_signature) { + show_signature(opt, commit); + show_mergetag(opt, commit); + } + + if (!commit->buffer) + return; + + if (opt->show_notes) { + int raw; + struct strbuf notebuf = STRBUF_INIT; + + raw = (opt->commit_format == CMIT_FMT_USERFORMAT); + format_display_notes(commit->object.sha1, ¬ebuf, + get_log_output_encoding(), raw); + ctx.notes_message = notebuf.len + ? strbuf_detach(¬ebuf, NULL) + : xcalloc(1, 1); + } + + /* + * And then the pretty-printed message itself + */ + if (ctx.need_8bit_cte >= 0 && opt->add_signoff) + ctx.need_8bit_cte = + has_non_ascii(fmt_name(getenv("GIT_COMMITTER_NAME"), + getenv("GIT_COMMITTER_EMAIL"))); + ctx.date_mode = opt->date_mode; + ctx.date_mode_explicit = opt->date_mode_explicit; + ctx.abbrev = opt->diffopt.abbrev; + ctx.after_subject = extra_headers; + ctx.preserve_subject = opt->preserve_subject; + ctx.reflog_info = opt->reflog_info; + ctx.fmt = opt->commit_format; + ctx.mailmap = opt->mailmap; + ctx.color = opt->diffopt.use_color; + ctx.output_encoding = get_log_output_encoding(); + if (opt->from_ident.mail_begin && opt->from_ident.name_begin) + ctx.from_ident = &opt->from_ident; + pretty_print_commit(&ctx, commit, &msgbuf); + + if (opt->add_signoff) + append_signoff(&msgbuf, 0, APPEND_SIGNOFF_DEDUP); + + if ((ctx.fmt != CMIT_FMT_USERFORMAT) && + ctx.notes_message && *ctx.notes_message) { + if (ctx.fmt == CMIT_FMT_EMAIL) { + strbuf_addstr(&msgbuf, "---\n"); + opt->shown_dashes = 1; + } + strbuf_addstr(&msgbuf, ctx.notes_message); + } + + if (opt->show_log_size) { + printf("log size %i\n", (int)msgbuf.len); + graph_show_oneline(opt->graph); + } + + /* + * Set opt->missing_newline if msgbuf doesn't + * end in a newline (including if it is empty) + */ + if (!msgbuf.len || msgbuf.buf[msgbuf.len - 1] != '\n') + opt->missing_newline = 1; + else + opt->missing_newline = 0; + + if (opt->graph) + graph_show_commit_msg(opt->graph, &msgbuf); + else + fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout); + if (opt->use_terminator) { + if (!opt->missing_newline) + graph_show_padding(opt->graph); + putchar(opt->diffopt.line_termination); + } + + strbuf_release(&msgbuf); + free(ctx.notes_message); +} + +int log_tree_diff_flush(struct rev_info *opt) +{ + opt->shown_dashes = 0; + diffcore_std(&opt->diffopt); + + if (diff_queue_is_empty()) { + int saved_fmt = opt->diffopt.output_format; + opt->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT; + diff_flush(&opt->diffopt); + opt->diffopt.output_format = saved_fmt; + return 0; + } + + if (opt->loginfo && !opt->no_commit_id) { + show_log(opt); + if ((opt->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT) && + opt->verbose_header && + opt->commit_format != CMIT_FMT_ONELINE) { + /* + * When showing a verbose header (i.e. log message), + * and not in --pretty=oneline format, we would want + * an extra newline between the end of log and the + * diff/diffstat output for readability. + */ + int pch = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_PATCH; + if (opt->diffopt.output_prefix) { + struct strbuf *msg = NULL; + msg = opt->diffopt.output_prefix(&opt->diffopt, + opt->diffopt.output_prefix_data); + fwrite(msg->buf, msg->len, 1, stdout); + } + + /* + * We may have shown three-dashes line early + * between notes and the log message, in which + * case we only want a blank line after the + * notes without (an extra) three-dashes line. + * Otherwise, we show the three-dashes line if + * we are showing the patch with diffstat, but + * in that case, there is no extra blank line + * after the three-dashes line. + */ + if (!opt->shown_dashes && + (pch & opt->diffopt.output_format) == pch) + printf("---"); + putchar('\n'); + } + } + diff_flush(&opt->diffopt); + return 1; +} + +static int do_diff_combined(struct rev_info *opt, struct commit *commit) +{ + diff_tree_combined_merge(commit, opt->dense_combined_merges, opt); + return !opt->loginfo; +} + +/* + * Show the diff of a commit. + * + * Return true if we printed any log info messages + */ +static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log_info *log) +{ + int showed_log; + struct commit_list *parents; + unsigned const char *sha1; + + if (!opt->diff && !DIFF_OPT_TST(&opt->diffopt, EXIT_WITH_STATUS)) + return 0; + + parse_commit(commit); + sha1 = commit->tree->object.sha1; + + /* Root commit? */ + parents = get_saved_parents(opt, commit); + if (!parents) { + if (opt->show_root_diff) { + diff_root_tree_sha1(sha1, "", &opt->diffopt); + log_tree_diff_flush(opt); + } + return !opt->loginfo; + } + + /* More than one parent? */ + if (parents && parents->next) { + if (opt->ignore_merges) + return 0; + else if (opt->combine_merges) + return do_diff_combined(opt, commit); + else if (opt->first_parent_only) { + /* + * Generate merge log entry only for the first + * parent, showing summary diff of the others + * we merged _in_. + */ + parse_commit(parents->item); + diff_tree_sha1(parents->item->tree->object.sha1, + sha1, "", &opt->diffopt); + log_tree_diff_flush(opt); + return !opt->loginfo; + } + + /* If we show individual diffs, show the parent info */ + log->parent = parents->item; + } + + showed_log = 0; + for (;;) { + struct commit *parent = parents->item; + + parse_commit(parent); + diff_tree_sha1(parent->tree->object.sha1, + sha1, "", &opt->diffopt); + log_tree_diff_flush(opt); + + showed_log |= !opt->loginfo; + + /* Set up the log info for the next parent, if any.. */ + parents = parents->next; + if (!parents) + break; + log->parent = parents->item; + opt->loginfo = log; + } + return showed_log; +} + +int log_tree_commit(struct rev_info *opt, struct commit *commit) +{ + struct log_info log; + int shown; + + log.commit = commit; + log.parent = NULL; + opt->loginfo = &log; + + if (opt->line_level_traverse) + return line_log_print(opt, commit); + + shown = log_tree_diff(opt, commit, &log); + if (!shown && opt->loginfo && opt->always_show_header) { + log.parent = NULL; + show_log(opt); + shown = 1; + } + opt->loginfo = NULL; + maybe_flush_or_die(stdout, "stdout"); + return shown; +} |