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.oid.hash, 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.oid.hash, 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.oid.hash,
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 (!get_cached_commit_buffer(commit, NULL))
return;
if (opt->show_notes) {
int raw;
struct strbuf notebuf = STRBUF_INIT;
raw = (opt->commit_format == CMIT_FMT_USERFORMAT);
format_display_notes(commit->object.oid.hash, ¬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.expand_tabs_in_log = opt->expand_tabs_in_log;
ctx.output_encoding = get_log_output_encoding();
if (opt->from_ident.mail_begin && opt->from_ident.name_begin)
ctx.from_ident = &opt->from_ident;
if (opt->graph)
ctx.graph_width = graph_width(opt->graph);
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 && !commit_format_is_empty(opt->commit_format)) {
if (!opt->missing_newline)
graph_show_padding(opt->graph);
putchar(opt->diffopt.line_termination);
}
strbuf_release(&msgbuf);
free(ctx.notes_message);
}
static int prepare_to_commit(const char *index_file, const char *prefix)
{
struct stat statbuf;
int commitable, saved_color_setting;
struct strbuf sb;
char *buffer;
FILE *fp;
const char *hook_arg1 = NULL;
const char *hook_arg2 = NULL;
int ident_shown = 0;
if (!no_verify && run_hook(index_file, "pre-commit", NULL))
return 0;
strbuf_init(&sb, 0);
if (message.len) {
strbuf_addbuf(&sb, &message);
hook_arg1 = "message";
} else if (logfile && !strcmp(logfile, "-")) {
if (isatty(0))
fprintf(stderr, "(reading log message from standard input)\n");
if (strbuf_read(&sb, 0, 0) < 0)
die("could not read log from standard input");
hook_arg1 = "message";
} else if (logfile) {
if (strbuf_read_file(&sb, logfile, 0) < 0)
die("could not read log file '%s': %s",
logfile, strerror(errno));
hook_arg1 = "message";
} else if (use_message) {
buffer = strstr(use_message_buffer, "\n\n");
if (!buffer || buffer[2] == '\0')
die("commit has empty message");
strbuf_add(&sb, buffer + 2, strlen(buffer + 2));
hook_arg1 = "commit";
hook_arg2 = use_message;
} else if (!stat(git_path("MERGE_MSG"), &statbuf)) {
if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0)
die("could not read MERGE_MSG: %s", strerror(errno));
hook_arg1 = "merge";
} else if (!stat(git_path("SQUASH_MSG"), &statbuf)) {
if (strbuf_read_file(&sb, git_path("SQUASH_MSG"), 0) < 0)
die("could not read SQUASH_MSG: %s", strerror(errno));
hook_arg1 = "squash";
} else if (template_file && !stat(template_file, &statbuf)) {
if (strbuf_read_file(&sb, template_file, 0) < 0)
die("could not read %s: %s",
template_file, strerror(errno));
hook_arg1 = "template";
}
/*
* This final case does not modify the template message,
* it just sets the argument to the prepare-commit-msg hook.
*/
else if (in_merge)
hook_arg1 = "merge";
fp = fopen(git_path(commit_editmsg), "w");
if (fp == NULL)
die("could not open %s", git_path(commit_editmsg));
if (cleanup_mode != CLEANUP_NONE)
stripspace(&sb, 0);
if (signoff) {
struct strbuf sob;
int i;
strbuf_init(&sob, 0);
strbuf_addstr(&sob, sign_off_header);
strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
getenv("GIT_COMMITTER_EMAIL")));
strbuf_addch(&sob, '\n');
for (i = sb.len - 1; i > 0 && sb.buf[i - 1] != '\n'; i--)
; /* do nothing */
if (prefixcmp(sb.buf + i, sob.buf)) {
if (prefixcmp(sb.buf + i, sign_off_header))
strbuf_addch(&sb, '\n');
strbuf_addbuf(&sb, &sob);
}
strbuf_release(&sob);
}
if (fwrite(sb.buf, 1, sb.len, fp) < sb.len)
die("could not write commit template: %s", strerror(errno));
strbuf_release(&sb);
determine_author_info();
/* This checks if committer ident is explicitly given */
git_committer_info(0);
if (use_editor) {
char *author_ident;
const char *committer_ident;
if (in_merge)
fprintf(fp,
"#\n"
"# It looks like you may be committing a MERGE.\n"
"# If this is not correct, please remove the file\n"
"# %s\n"
"# and try again.\n"
"#\n",
git_path("MERGE_HEAD"));
fprintf(fp,
"\n"
"# Please enter the commit message for your changes.\n"
"# (Comment lines starting with '#' will ");
if (cleanup_mode == CLEANUP_ALL)
fprintf(fp, "not be included)\n");
else /* CLEANUP_SPACE, that is. */
fprintf(fp, "be kept.\n"
"# You can remove them yourself if you want to)\n");
if (only_include_assumed)
fprintf(fp, "# %s\n", only_include_assumed);
author_ident = xstrdup(fmt_name(author_name, author_email));
committer_ident = fmt_name(getenv("GIT_COMMITTER_NAME"),
getenv("GIT_COMMITTER_EMAIL"));
if (strcmp(author_ident, committer_ident))
fprintf(fp,
"%s"
"# Author: %s\n",
ident_shown++ ? "" : "#\n",
author_ident);
free(author_ident);
if (!user_ident_explicitly_given)
fprintf(fp,
"%s"
"# Committer: %s\n",
ident_shown++ ? "" : "#\n",
committer_ident);
if (ident_shown)
fprintf(fp, "#\n");
saved_color_setting = wt_status_use_color;
wt_status_use_color = 0;
commitable = run_status(fp, index_file, prefix, 1);
wt_status_use_color = saved_color_setting;
} else {
struct rev_info rev;
unsigned char sha1[20];
const char *parent = "HEAD";
if (!active_nr && read_cache() < 0)
die("Cannot read index");
if (amend)
parent = "HEAD^1";
if (get_sha1(parent, sha1))
commitable = !!active_nr;
else {
init_revisions(&rev, "");
rev.abbrev = 0;
setup_revisions(0, NULL, &rev, parent);
DIFF_OPT_SET(&rev.diffopt, QUIET);
DIFF_OPT_SET(&rev.diffopt, EXIT_WITH_STATUS);
run_diff_index(&rev, 1 /* cached */);
commitable = !!DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES);
}
}
fclose(fp);
if (!commitable && !in_merge && !allow_empty &&
!(amend && is_a_merge(head_sha1))) {
run_status(stdout, index_file, prefix, 0);
unlink(commit_editmsg);
return 0;
}
/*
* Re-read the index as pre-commit hook could have updated it,
* and write it out as a tree. We must do this before we invoke
* the editor and after we invoke run_status above.
*/
discard_cache();
read_cache_from(index_file);
if (!active_cache_tree)
active_cache_tree = cache_tree();
if (cache_tree_update(active_cache_tree,
active_cache, active_nr, 0, 0) < 0) {
error("Error building trees");
return 0;
}
if (run_hook(index_file, "prepare-commit-msg",
git_path(commit_editmsg), hook_arg1, hook_arg2, NULL))
return 0;
if (use_editor) {
char index[PATH_MAX];
const char *env[2] = { index, NULL };
snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
launch_editor(git_path(commit_editmsg), NULL, env);
}
if (!no_verify &&
run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
return 0;
}
return 1;
}
void append_signoff(struct strbuf *msgbuf, int ignore_footer, unsigned flag)
{
unsigned no_dup_sob = flag & APPEND_SIGNOFF_DEDUP;
struct strbuf sob = STRBUF_INIT;
int has_footer;
strbuf_addstr(&sob, sign_off_header);
strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
getenv("GIT_COMMITTER_EMAIL")));
strbuf_addch(&sob, '\n');
/*
* If the whole message buffer is equal to the sob, pretend that we
* found a conforming footer with a matching sob
*/
if (msgbuf->len - ignore_footer == sob.len &&
!strncmp(msgbuf->buf, sob.buf, sob.len))
has_footer = 3;
else
has_footer = has_conforming_footer(msgbuf, &sob, ignore_footer);
if (!has_footer) {
const char *append_newlines = NULL;
size_t len = msgbuf->len - ignore_footer;
if (!len) {
/*
* The buffer is completely empty. Leave foom for
* the title and body to be filled in by the user.
*/
append_newlines = "\n\n";
} else if (msgbuf->buf[len - 1] != '\n') {
/*
* Incomplete line. Complete the line and add a
* blank one so that there is an empty line between
* the message body and the sob.
*/
append_newlines = "\n\n";
} else if (len == 1) {
/*
* Buffer contains a single newline. Add another
* so that we leave room for the title and body.
*/
append_newlines = "\n";
} else if (msgbuf->buf[len - 2] != '\n') {
/*
* Buffer ends with a single newline. Add another
* so that there is an empty line between the message
* body and the sob.
*/
append_newlines = "\n";
} /* else, the buffer already ends with two newlines. */
if (append_newlines)
strbuf_splice(msgbuf, msgbuf->len - ignore_footer, 0,
append_newlines, strlen(append_newlines));
}
if (has_footer != 3 && (!no_dup_sob || has_footer != 2))
strbuf_splice(msgbuf, msgbuf->len - ignore_footer, 0,
sob.buf, sob.len);
strbuf_release(&sob);
}
static int prepare_to_commit(const char *index_file, const char *prefix,
struct wt_status *s)
{
struct stat statbuf;
int commitable, saved_color_setting;
struct strbuf sb = STRBUF_INIT;
char *buffer;
FILE *fp;
const char *hook_arg1 = NULL;
const char *hook_arg2 = NULL;
int ident_shown = 0;
if (!no_verify && run_hook(index_file, "pre-commit", NULL))
return 0;
if (squash_message) {
/*
* Insert the proper subject line before other commit
* message options add their content.
*/
if (use_message && !strcmp(use_message, squash_message))
strbuf_addstr(&sb, "squash! ");
else {
struct pretty_print_context ctx = {0};
struct commit *c;
c = lookup_commit_reference_by_name(squash_message);
if (!c)
die("could not lookup commit %s", squash_message);
ctx.output_encoding = get_commit_output_encoding();
format_commit_message(c, "squash! %s\n\n", &sb,
&ctx);
}
}
if (message.len) {
strbuf_addbuf(&sb, &message);
hook_arg1 = "message";
} else if (logfile && !strcmp(logfile, "-")) {
if (isatty(0))
fprintf(stderr, "(reading log message from standard input)\n");
if (strbuf_read(&sb, 0, 0) < 0)
die_errno("could not read log from standard input");
hook_arg1 = "message";
} else if (logfile) {
if (strbuf_read_file(&sb, logfile, 0) < 0)
die_errno("could not read log file '%s'",
logfile);
hook_arg1 = "message";
} else if (use_message) {
buffer = strstr(use_message_buffer, "\n\n");
if (!buffer || buffer[2] == '\0')
die("commit has empty message");
strbuf_add(&sb, buffer + 2, strlen(buffer + 2));
hook_arg1 = "commit";
hook_arg2 = use_message;
} else if (fixup_message) {
struct pretty_print_context ctx = {0};
struct commit *commit;
commit = lookup_commit_reference_by_name(fixup_message);
if (!commit)
die("could not lookup commit %s", fixup_message);
ctx.output_encoding = get_commit_output_encoding();
format_commit_message(commit, "fixup! %s\n\n",
&sb, &ctx);
hook_arg1 = "message";
} else if (!stat(git_path("MERGE_MSG"), &statbuf)) {
if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0)
die_errno("could not read MERGE_MSG");
hook_arg1 = "merge";
} else if (!stat(git_path("SQUASH_MSG"), &statbuf)) {
if (strbuf_read_file(&sb, git_path("SQUASH_MSG"), 0) < 0)
die_errno("could not read SQUASH_MSG");
hook_arg1 = "squash";
} else if (template_file && !stat(template_file, &statbuf)) {
if (strbuf_read_file(&sb, template_file, 0) < 0)
die_errno("could not read '%s'", template_file);
hook_arg1 = "template";
}
/*
* This final case does not modify the template message,
* it just sets the argument to the prepare-commit-msg hook.
*/
else if (in_merge)
hook_arg1 = "merge";
if (squash_message) {
/*
* If squash_commit was used for the commit subject,
* then we're possibly hijacking other commit log options.
* Reset the hook args to tell the real story.
*/
hook_arg1 = "message";
hook_arg2 = "";
}
fp = fopen(git_path(commit_editmsg), "w");
if (fp == NULL)
die_errno("could not open '%s'", git_path(commit_editmsg));
if (cleanup_mode != CLEANUP_NONE)
stripspace(&sb, 0);
if (signoff) {
struct strbuf sob = STRBUF_INIT;
int i;
strbuf_addstr(&sob, sign_off_header);
strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
getenv("GIT_COMMITTER_EMAIL")));
strbuf_addch(&sob, '\n');
for (i = sb.len - 1; i > 0 && sb.buf[i - 1] != '\n'; i--)
; /* do nothing */
if (prefixcmp(sb.buf + i, sob.buf)) {
if (!i || !ends_rfc2822_footer(&sb))
strbuf_addch(&sb, '\n');
strbuf_addbuf(&sb, &sob);
}
strbuf_release(&sob);
}
if (fwrite(sb.buf, 1, sb.len, fp) < sb.len)
die_errno("could not write commit template");
strbuf_release(&sb);
determine_author_info();
/* This checks if committer ident is explicitly given */
git_committer_info(0);
if (use_editor && include_status) {
char *author_ident;
const char *committer_ident;
if (in_merge)
fprintf(fp,
"#\n"
"# It looks like you may be committing a MERGE.\n"
"# If this is not correct, please remove the file\n"
"# %s\n"
"# and try again.\n"
"#\n",
git_path("MERGE_HEAD"));
fprintf(fp,
"\n"
"# Please enter the commit message for your changes.");
if (cleanup_mode == CLEANUP_ALL)
fprintf(fp,
" Lines starting\n"
"# with '#' will be ignored, and an empty"
" message aborts the commit.\n");
else /* CLEANUP_SPACE, that is. */
fprintf(fp,
" Lines starting\n"
"# with '#' will be kept; you may remove them"
" yourself if you want to.\n"
"# An empty message aborts the commit.\n");
if (only_include_assumed)
fprintf(fp, "# %s\n", only_include_assumed);
author_ident = xstrdup(fmt_name(author_name, author_email));
committer_ident = fmt_name(getenv("GIT_COMMITTER_NAME"),
getenv("GIT_COMMITTER_EMAIL"));
if (strcmp(author_ident, committer_ident))
fprintf(fp,
"%s"
"# Author: %s\n",
ident_shown++ ? "" : "#\n",
author_ident);
free(author_ident);
if (!user_ident_sufficiently_given())
fprintf(fp,
"%s"
"# Committer: %s\n",
ident_shown++ ? "" : "#\n",
committer_ident);
if (ident_shown)
fprintf(fp, "#\n");
saved_color_setting = s->use_color;
s->use_color = 0;
commitable = run_status(fp, index_file, prefix, 1, s);
s->use_color = saved_color_setting;
} else {
unsigned char sha1[20];
const char *parent = "HEAD";
if (!active_nr && read_cache() < 0)
die("Cannot read index");
if (amend)
parent = "HEAD^1";
if (get_sha1(parent, sha1))
commitable = !!active_nr;
else
commitable = index_differs_from(parent, 0);
}
fclose(fp);
if (!commitable && !in_merge && !allow_empty &&
!(amend && is_a_merge(head_sha1))) {
run_status(stdout, index_file, prefix, 0, s);
if (amend)
fputs(empty_amend_advice, stderr);
return 0;
}
/*
* Re-read the index as pre-commit hook could have updated it,
* and write it out as a tree. We must do this before we invoke
* the editor and after we invoke run_status above.
*/
discard_cache();
read_cache_from(index_file);
if (!active_cache_tree)
active_cache_tree = cache_tree();
if (cache_tree_update(active_cache_tree,
active_cache, active_nr, 0, 0) < 0) {
error("Error building trees");
return 0;
}
if (run_hook(index_file, "prepare-commit-msg",
git_path(commit_editmsg), hook_arg1, hook_arg2, NULL))
return 0;
if (use_editor) {
char index[PATH_MAX];
const char *env[2] = { NULL };
env[0] = index;
snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
if (launch_editor(git_path(commit_editmsg), NULL, env)) {
fprintf(stderr,
"Please supply the message using either -m or -F option.\n");
exit(1);
}
}
if (!no_verify &&
run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
return 0;
}
return 1;
}
static int prepare_to_commit(const char *index_file, const char *prefix,
struct wt_status *s,
struct strbuf *author_ident)
{
struct stat statbuf;
struct strbuf committer_ident = STRBUF_INIT;
int commitable, saved_color_setting;
struct strbuf sb = STRBUF_INIT;
char *buffer;
const char *hook_arg1 = NULL;
const char *hook_arg2 = NULL;
int ident_shown = 0;
int clean_message_contents = (cleanup_mode != CLEANUP_NONE);
if (!no_verify && run_hook(index_file, "pre-commit", NULL))
return 0;
if (squash_message) {
/*
* Insert the proper subject line before other commit
* message options add their content.
*/
if (use_message && !strcmp(use_message, squash_message))
strbuf_addstr(&sb, "squash! ");
else {
struct pretty_print_context ctx = {0};
struct commit *c;
c = lookup_commit_reference_by_name(squash_message);
if (!c)
die(_("could not lookup commit %s"), squash_message);
ctx.output_encoding = get_commit_output_encoding();
format_commit_message(c, "squash! %s\n\n", &sb,
&ctx);
}
}
if (message.len) {
strbuf_addbuf(&sb, &message);
hook_arg1 = "message";
} else if (logfile && !strcmp(logfile, "-")) {
if (isatty(0))
fprintf(stderr, _("(reading log message from standard input)\n"));
if (strbuf_read(&sb, 0, 0) < 0)
die_errno(_("could not read log from standard input"));
hook_arg1 = "message";
} else if (logfile) {
if (strbuf_read_file(&sb, logfile, 0) < 0)
die_errno(_("could not read log file '%s'"),
logfile);
hook_arg1 = "message";
} else if (use_message) {
buffer = strstr(use_message_buffer, "\n\n");
if (!buffer || buffer[2] == '\0')
die(_("commit has empty message"));
strbuf_add(&sb, buffer + 2, strlen(buffer + 2));
hook_arg1 = "commit";
hook_arg2 = use_message;
} else if (fixup_message) {
struct pretty_print_context ctx = {0};
struct commit *commit;
commit = lookup_commit_reference_by_name(fixup_message);
if (!commit)
die(_("could not lookup commit %s"), fixup_message);
ctx.output_encoding = get_commit_output_encoding();
format_commit_message(commit, "fixup! %s\n\n",
&sb, &ctx);
hook_arg1 = "message";
} else if (!stat(git_path("MERGE_MSG"), &statbuf)) {
if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0)
die_errno(_("could not read MERGE_MSG"));
hook_arg1 = "merge";
} else if (!stat(git_path("SQUASH_MSG"), &statbuf)) {
if (strbuf_read_file(&sb, git_path("SQUASH_MSG"), 0) < 0)
die_errno(_("could not read SQUASH_MSG"));
hook_arg1 = "squash";
} else if (template_file) {
if (strbuf_read_file(&sb, template_file, 0) < 0)
die_errno(_("could not read '%s'"), template_file);
hook_arg1 = "template";
clean_message_contents = 0;
}
/*
* The remaining cases don't modify the template message, but
* just set the argument(s) to the prepare-commit-msg hook.
*/
else if (whence == FROM_MERGE)
hook_arg1 = "merge";
else if (whence == FROM_CHERRY_PICK) {
hook_arg1 = "commit";
hook_arg2 = "CHERRY_PICK_HEAD";
}
if (squash_message) {
/*
* If squash_commit was used for the commit subject,
* then we're possibly hijacking other commit log options.
* Reset the hook args to tell the real story.
*/
hook_arg1 = "message";
hook_arg2 = "";
}
s->fp = fopen(git_path(commit_editmsg), "w");
if (s->fp == NULL)
die_errno(_("could not open '%s'"), git_path(commit_editmsg));
if (clean_message_contents)
stripspace(&sb, 0);
if (signoff) {
struct strbuf sob = STRBUF_INIT;
int i;
strbuf_addstr(&sob, sign_off_header);
strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
getenv("GIT_COMMITTER_EMAIL")));
strbuf_addch(&sob, '\n');
for (i = sb.len - 1; i > 0 && sb.buf[i - 1] != '\n'; i--)
; /* do nothing */
if (prefixcmp(sb.buf + i, sob.buf)) {
if (!i || !ends_rfc2822_footer(&sb))
strbuf_addch(&sb, '\n');
strbuf_addbuf(&sb, &sob);
}
strbuf_release(&sob);
}
if (fwrite(sb.buf, 1, sb.len, s->fp) < sb.len)
die_errno(_("could not write commit template"));
strbuf_release(&sb);
/* This checks and barfs if author is badly specified */
determine_author_info(author_ident);
/* This checks if committer ident is explicitly given */
strbuf_addstr(&committer_ident, git_committer_info(0));
if (use_editor && include_status) {
char *ai_tmp, *ci_tmp;
if (whence != FROM_COMMIT)
status_printf_ln(s, GIT_COLOR_NORMAL,
_("\n"
"It looks like you may be committing a %s.\n"
"If this is not correct, please remove the file\n"
" %s\n"
"and try again.\n"
""),
whence_s(),
git_path(whence == FROM_MERGE
? "MERGE_HEAD"
: "CHERRY_PICK_HEAD"));
fprintf(s->fp, "\n");
status_printf(s, GIT_COLOR_NORMAL,
_("Please enter the commit message for your changes."));
if (cleanup_mode == CLEANUP_ALL)
status_printf_more(s, GIT_COLOR_NORMAL,
_(" Lines starting\n"
"with '#' will be ignored, and an empty"
" message aborts the commit.\n"));
else /* CLEANUP_SPACE, that is. */
status_printf_more(s, GIT_COLOR_NORMAL,
_(" Lines starting\n"
"with '#' will be kept; you may remove them"
" yourself if you want to.\n"
"An empty message aborts the commit.\n"));
if (only_include_assumed)
status_printf_ln(s, GIT_COLOR_NORMAL,
"%s", only_include_assumed);
ai_tmp = cut_ident_timestamp_part(author_ident->buf);
ci_tmp = cut_ident_timestamp_part(committer_ident.buf);
if (strcmp(author_ident->buf, committer_ident.buf))
status_printf_ln(s, GIT_COLOR_NORMAL,
_("%s"
"Author: %s"),
ident_shown++ ? "" : "\n",
author_ident->buf);
if (!user_ident_sufficiently_given())
status_printf_ln(s, GIT_COLOR_NORMAL,
_("%s"
"Committer: %s"),
ident_shown++ ? "" : "\n",
committer_ident.buf);
if (ident_shown)
status_printf_ln(s, GIT_COLOR_NORMAL, "");
saved_color_setting = s->use_color;
s->use_color = 0;
commitable = run_status(s->fp, index_file, prefix, 1, s);
s->use_color = saved_color_setting;
*ai_tmp = ' ';
*ci_tmp = ' ';
} else {
unsigned char sha1[20];
const char *parent = "HEAD";
if (!active_nr && read_cache() < 0)
die(_("Cannot read index"));
if (amend)
parent = "HEAD^1";
if (get_sha1(parent, sha1))
commitable = !!active_nr;
else
commitable = index_differs_from(parent, 0);
}
strbuf_release(&committer_ident);
fclose(s->fp);
/*
* Reject an attempt to record a non-merge empty commit without
* explicit --allow-empty. In the cherry-pick case, it may be
* empty due to conflict resolution, which the user should okay.
*/
if (!commitable && whence != FROM_MERGE && !allow_empty &&
!(amend && is_a_merge(head_sha1))) {
run_status(stdout, index_file, prefix, 0, s);
if (amend)
fputs(_(empty_amend_advice), stderr);
else if (whence == FROM_CHERRY_PICK)
fputs(_(empty_cherry_pick_advice), stderr);
return 0;
}
/*
* Re-read the index as pre-commit hook could have updated it,
* and write it out as a tree. We must do this before we invoke
* the editor and after we invoke run_status above.
*/
discard_cache();
read_cache_from(index_file);
if (!active_cache_tree)
active_cache_tree = cache_tree();
if (cache_tree_update(active_cache_tree,
active_cache, active_nr, 0, 0) < 0) {
error(_("Error building trees"));
return 0;
}
if (run_hook(index_file, "prepare-commit-msg",
git_path(commit_editmsg), hook_arg1, hook_arg2, NULL))
return 0;
if (use_editor) {
char index[PATH_MAX];
const char *env[2] = { NULL };
env[0] = index;
snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
if (launch_editor(git_path(commit_editmsg), NULL, env)) {
fprintf(stderr,
_("Please supply the message using either -m or -F option.\n"));
exit(1);
}
}
if (!no_verify &&
run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
return 0;
}
return 1;
}
