#include "cache.h"
+#include "config.h"
#include "string-list.h"
#include "run-command.h"
#include "commit.h"
* Copyright (c) 2013, 2014 Christian Couder <chriscool@tuxfamily.org>
*/
-enum action_where { WHERE_END, WHERE_AFTER, WHERE_BEFORE, WHERE_START };
-enum action_if_exists { EXISTS_ADD_IF_DIFFERENT_NEIGHBOR, EXISTS_ADD_IF_DIFFERENT,
- EXISTS_ADD, EXISTS_REPLACE, EXISTS_DO_NOTHING };
-enum action_if_missing { MISSING_ADD, MISSING_DO_NOTHING };
-
struct conf_info {
char *name;
char *key;
char *command;
- enum action_where where;
- enum action_if_exists if_exists;
- enum action_if_missing if_missing;
+ enum trailer_where where;
+ enum trailer_if_exists if_exists;
+ enum trailer_if_missing if_missing;
};
static struct conf_info default_conf_info;
static char *separators = ":";
+static int configured;
+
#define TRAILER_ARG_STRING "$ARG"
static const char *git_generated_prefixes[] = {
pos != (head); \
pos = is_reverse ? pos->prev : pos->next)
-static int after_or_end(enum action_where where)
+static int after_or_end(enum trailer_where where)
{
return (where == WHERE_AFTER) || (where == WHERE_END);
}
return same_token(a, b) && same_value(a, b);
}
-static inline int contains_only_spaces(const char *str)
+static inline int is_blank_line(const char *str)
{
const char *s = str;
- while (*s && isspace(*s))
+ while (*s && *s != '\n' && isspace(*s))
s++;
- return !*s;
+ return !*s || *s == '\n';
}
static inline void strbuf_replace(struct strbuf *sb, const char *a, const char *b)
fprintf(outfile, "%s%c %s\n", tok, separators[0], val);
}
-static void print_all(FILE *outfile, struct list_head *head, int trim_empty)
+static void print_all(FILE *outfile, struct list_head *head,
+ const struct process_trailer_options *opts)
{
struct list_head *pos;
struct trailer_item *item;
list_for_each(pos, head) {
item = list_entry(pos, struct trailer_item, list);
- if (!trim_empty || strlen(item->value) > 0)
+ if ((!opts->trim_empty || strlen(item->value) > 0) &&
+ (!opts->only_trailers || item->token))
print_tok_val(outfile, item->token, item->value);
}
}
static struct trailer_item *trailer_from_arg(struct arg_item *arg_tok)
{
- struct trailer_item *new = xcalloc(sizeof(*new), 1);
- new->token = arg_tok->token;
- new->value = arg_tok->value;
+ struct trailer_item *new_item = xcalloc(sizeof(*new_item), 1);
+ new_item->token = arg_tok->token;
+ new_item->value = arg_tok->value;
arg_tok->token = arg_tok->value = NULL;
free_arg_item(arg_tok);
- return new;
+ return new_item;
}
static void add_arg_to_input_list(struct trailer_item *on_tok,
int check_all,
struct list_head *head)
{
- enum action_where where = arg_tok->conf.where;
+ enum trailer_where where = arg_tok->conf.where;
struct list_head *next_head;
do {
if (same_trailer(in_tok, arg_tok))
struct strbuf cmd = STRBUF_INIT;
struct strbuf buf = STRBUF_INIT;
struct child_process cp = CHILD_PROCESS_INIT;
- const char *argv[] = {NULL, NULL};
char *result;
strbuf_addstr(&cmd, command);
if (arg)
strbuf_replace(&cmd, TRAILER_ARG_STRING, arg);
- argv[0] = cmd.buf;
- cp.argv = argv;
+ strvec_push(&cp.args, cmd.buf);
cp.env = local_repo_env;
cp.no_stdin = 1;
cp.use_shell = 1;
else
free_arg_item(arg_tok);
break;
+ default:
+ BUG("trailer.c: unhandled value %d",
+ arg_tok->conf.if_exists);
}
}
static void apply_arg_if_missing(struct list_head *head,
struct arg_item *arg_tok)
{
- enum action_where where;
+ enum trailer_where where;
struct trailer_item *to_add;
switch (arg_tok->conf.if_missing) {
list_add_tail(&to_add->list, head);
else
list_add(&to_add->list, head);
+ break;
+ default:
+ BUG("trailer.c: unhandled value %d",
+ arg_tok->conf.if_missing);
}
}
struct trailer_item *in_tok;
struct trailer_item *on_tok;
- enum action_where where = arg_tok->conf.where;
+ enum trailer_where where = arg_tok->conf.where;
int middle = (where == WHERE_AFTER) || (where == WHERE_BEFORE);
int backwards = after_or_end(where);
struct trailer_item *start_tok;
}
}
-static int set_where(struct conf_info *item, const char *value)
+int trailer_set_where(enum trailer_where *item, const char *value)
{
- if (!strcasecmp("after", value))
- item->where = WHERE_AFTER;
+ if (!value)
+ *item = WHERE_DEFAULT;
+ else if (!strcasecmp("after", value))
+ *item = WHERE_AFTER;
else if (!strcasecmp("before", value))
- item->where = WHERE_BEFORE;
+ *item = WHERE_BEFORE;
else if (!strcasecmp("end", value))
- item->where = WHERE_END;
+ *item = WHERE_END;
else if (!strcasecmp("start", value))
- item->where = WHERE_START;
+ *item = WHERE_START;
else
return -1;
return 0;
}
-static int set_if_exists(struct conf_info *item, const char *value)
+int trailer_set_if_exists(enum trailer_if_exists *item, const char *value)
{
- if (!strcasecmp("addIfDifferent", value))
- item->if_exists = EXISTS_ADD_IF_DIFFERENT;
+ if (!value)
+ *item = EXISTS_DEFAULT;
+ else if (!strcasecmp("addIfDifferent", value))
+ *item = EXISTS_ADD_IF_DIFFERENT;
else if (!strcasecmp("addIfDifferentNeighbor", value))
- item->if_exists = EXISTS_ADD_IF_DIFFERENT_NEIGHBOR;
+ *item = EXISTS_ADD_IF_DIFFERENT_NEIGHBOR;
else if (!strcasecmp("add", value))
- item->if_exists = EXISTS_ADD;
+ *item = EXISTS_ADD;
else if (!strcasecmp("replace", value))
- item->if_exists = EXISTS_REPLACE;
+ *item = EXISTS_REPLACE;
else if (!strcasecmp("doNothing", value))
- item->if_exists = EXISTS_DO_NOTHING;
+ *item = EXISTS_DO_NOTHING;
else
return -1;
return 0;
}
-static int set_if_missing(struct conf_info *item, const char *value)
+int trailer_set_if_missing(enum trailer_if_missing *item, const char *value)
{
- if (!strcasecmp("doNothing", value))
- item->if_missing = MISSING_DO_NOTHING;
+ if (!value)
+ *item = MISSING_DEFAULT;
+ else if (!strcasecmp("doNothing", value))
+ *item = MISSING_DO_NOTHING;
else if (!strcasecmp("add", value))
- item->if_missing = MISSING_ADD;
+ *item = MISSING_ADD;
else
return -1;
return 0;
variable_name = strrchr(trailer_item, '.');
if (!variable_name) {
if (!strcmp(trailer_item, "where")) {
- if (set_where(&default_conf_info, value) < 0)
+ if (trailer_set_where(&default_conf_info.where,
+ value) < 0)
warning(_("unknown value '%s' for key '%s'"),
value, conf_key);
} else if (!strcmp(trailer_item, "ifexists")) {
- if (set_if_exists(&default_conf_info, value) < 0)
+ if (trailer_set_if_exists(&default_conf_info.if_exists,
+ value) < 0)
warning(_("unknown value '%s' for key '%s'"),
value, conf_key);
} else if (!strcmp(trailer_item, "ifmissing")) {
- if (set_if_missing(&default_conf_info, value) < 0)
+ if (trailer_set_if_missing(&default_conf_info.if_missing,
+ value) < 0)
warning(_("unknown value '%s' for key '%s'"),
value, conf_key);
} else if (!strcmp(trailer_item, "separators")) {
conf->command = xstrdup(value);
break;
case TRAILER_WHERE:
- if (set_where(conf, value))
+ if (trailer_set_where(&conf->where, value))
warning(_("unknown value '%s' for key '%s'"), value, conf_key);
break;
case TRAILER_IF_EXISTS:
- if (set_if_exists(conf, value))
+ if (trailer_set_if_exists(&conf->if_exists, value))
warning(_("unknown value '%s' for key '%s'"), value, conf_key);
break;
case TRAILER_IF_MISSING:
- if (set_if_missing(conf, value))
+ if (trailer_set_if_missing(&conf->if_missing, value))
warning(_("unknown value '%s' for key '%s'"), value, conf_key);
break;
default:
- die("BUG: trailer.c: unhandled type %d", type);
+ BUG("trailer.c: unhandled type %d", type);
}
return 0;
}
+static void ensure_configured(void)
+{
+ if (configured)
+ return;
+
+ /* Default config must be setup first */
+ default_conf_info.where = WHERE_END;
+ default_conf_info.if_exists = EXISTS_ADD_IF_DIFFERENT_NEIGHBOR;
+ default_conf_info.if_missing = MISSING_ADD;
+ git_config(git_trailer_default_config, NULL);
+ git_config(git_trailer_config, NULL);
+ configured = 1;
+}
+
static const char *token_from_item(struct arg_item *item, char *tok)
{
if (item->conf.key)
return item->conf.name;
}
-static int token_matches_item(const char *tok, struct arg_item *item, int tok_len)
+static int token_matches_item(const char *tok, struct arg_item *item, size_t tok_len)
{
if (!strncasecmp(tok, item->conf.name, tok_len))
return 1;
}
/*
- * Return the location of the first separator in line, or -1 if there is no
- * separator.
+ * If the given line is of the form
+ * "<token><optional whitespace><separator>..." or "<separator>...", return the
+ * location of the separator. Otherwise, return -1. The optional whitespace
+ * is allowed there primarily to allow things like "Bug #43" where <token> is
+ * "Bug" and <separator> is "#".
+ *
+ * The separator-starts-line case (in which this function returns 0) is
+ * distinguished from the non-well-formed-line case (in which this function
+ * returns -1) because some callers of this function need such a distinction.
*/
-static int find_separator(const char *line, const char *separators)
+static ssize_t find_separator(const char *line, const char *separators)
{
- int loc = strcspn(line, separators);
- if (!line[loc])
- return -1;
- return loc;
+ int whitespace_found = 0;
+ const char *c;
+ for (c = line; *c; c++) {
+ if (strchr(separators, *c))
+ return c - line;
+ if (!whitespace_found && (isalnum(*c) || *c == '-'))
+ continue;
+ if (c != line && (*c == ' ' || *c == '\t')) {
+ whitespace_found = 1;
+ continue;
+ }
+ break;
+ }
+ return -1;
}
/*
*/
static void parse_trailer(struct strbuf *tok, struct strbuf *val,
const struct conf_info **conf, const char *trailer,
- int separator_pos)
+ ssize_t separator_pos)
{
struct arg_item *item;
- int tok_len;
+ size_t tok_len;
struct list_head *pos;
if (separator_pos != -1) {
static struct trailer_item *add_trailer_item(struct list_head *head, char *tok,
char *val)
{
- struct trailer_item *new = xcalloc(sizeof(*new), 1);
- new->token = tok;
- new->value = val;
- list_add_tail(&new->list, head);
- return new;
+ struct trailer_item *new_item = xcalloc(sizeof(*new_item), 1);
+ new_item->token = tok;
+ new_item->value = val;
+ list_add_tail(&new_item->list, head);
+ return new_item;
}
static void add_arg_item(struct list_head *arg_head, char *tok, char *val,
- const struct conf_info *conf)
+ const struct conf_info *conf,
+ const struct new_trailer_item *new_trailer_item)
{
- struct arg_item *new = xcalloc(sizeof(*new), 1);
- new->token = tok;
- new->value = val;
- duplicate_conf(&new->conf, conf);
- list_add_tail(&new->list, arg_head);
+ struct arg_item *new_item = xcalloc(sizeof(*new_item), 1);
+ new_item->token = tok;
+ new_item->value = val;
+ duplicate_conf(&new_item->conf, conf);
+ if (new_trailer_item) {
+ if (new_trailer_item->where != WHERE_DEFAULT)
+ new_item->conf.where = new_trailer_item->where;
+ if (new_trailer_item->if_exists != EXISTS_DEFAULT)
+ new_item->conf.if_exists = new_trailer_item->if_exists;
+ if (new_trailer_item->if_missing != MISSING_DEFAULT)
+ new_item->conf.if_missing = new_trailer_item->if_missing;
+ }
+ list_add_tail(&new_item->list, arg_head);
}
static void process_command_line_args(struct list_head *arg_head,
- struct string_list *trailers)
+ struct list_head *new_trailer_head)
{
- struct string_list_item *tr;
struct arg_item *item;
struct strbuf tok = STRBUF_INIT;
struct strbuf val = STRBUF_INIT;
add_arg_item(arg_head,
xstrdup(token_from_item(item, NULL)),
xstrdup(""),
- &item->conf);
+ &item->conf, NULL);
}
/* Add an arg item for each trailer on the command line */
- for_each_string_list_item(tr, trailers) {
- int separator_pos = find_separator(tr->string, cl_separators);
+ list_for_each(pos, new_trailer_head) {
+ struct new_trailer_item *tr =
+ list_entry(pos, struct new_trailer_item, list);
+ ssize_t separator_pos = find_separator(tr->text, cl_separators);
+
if (separator_pos == 0) {
struct strbuf sb = STRBUF_INIT;
- strbuf_addstr(&sb, tr->string);
+ strbuf_addstr(&sb, tr->text);
strbuf_trim(&sb);
error(_("empty trailer token in trailer '%.*s'"),
(int) sb.len, sb.buf);
strbuf_release(&sb);
} else {
- parse_trailer(&tok, &val, &conf, tr->string,
+ parse_trailer(&tok, &val, &conf, tr->text,
separator_pos);
add_arg_item(arg_head,
strbuf_detach(&tok, NULL),
strbuf_detach(&val, NULL),
- conf);
+ conf, tr);
}
}
free(cl_separators);
}
-static struct strbuf **read_input_file(const char *file)
+static void read_input_file(struct strbuf *sb, const char *file)
{
- struct strbuf **lines;
- struct strbuf sb = STRBUF_INIT;
-
if (file) {
- if (strbuf_read_file(&sb, file, 0) < 0)
+ if (strbuf_read_file(sb, file, 0) < 0)
die_errno(_("could not read input file '%s'"), file);
} else {
- if (strbuf_read(&sb, fileno(stdin), 0) < 0)
+ if (strbuf_read(sb, fileno(stdin), 0) < 0)
die_errno(_("could not read from stdin"));
}
+}
- lines = strbuf_split(&sb, '\n');
+static const char *next_line(const char *str)
+{
+ const char *nl = strchrnul(str, '\n');
+ return nl + !!*nl;
+}
- strbuf_release(&sb);
+/*
+ * Return the position of the start of the last line. If len is 0, return -1.
+ */
+static ssize_t last_line(const char *buf, size_t len)
+{
+ ssize_t i;
+ if (len == 0)
+ return -1;
+ if (len == 1)
+ return 0;
+ /*
+ * Skip the last character (in addition to the null terminator),
+ * because if the last character is a newline, it is considered as part
+ * of the last line anyway.
+ */
+ i = len - 2;
- return lines;
+ for (; i >= 0; i--) {
+ if (buf[i] == '\n')
+ return i + 1;
+ }
+ return 0;
}
/*
- * Return the (0 based) index of the start of the patch or the line
- * count if there is no patch in the message.
+ * Return the position of the start of the patch or the length of str if there
+ * is no patch in the message.
*/
-static int find_patch_start(struct strbuf **lines, int count)
+static size_t find_patch_start(const char *str)
{
- int i;
+ const char *s;
+
+ for (s = str; *s; s = next_line(s)) {
+ const char *v;
- /* Get the start of the patch part if any */
- for (i = 0; i < count; i++) {
- if (starts_with(lines[i]->buf, "---"))
- return i;
+ if (skip_prefix(s, "---", &v) && isspace(*v))
+ return s - str;
}
- return count;
+ return s - str;
}
/*
- * Return the (0 based) index of the first trailer line or count if
- * there are no trailers. Trailers are searched only in the lines from
- * index (count - 1) down to index 0.
+ * Return the position of the first trailer line or len if there are no
+ * trailers.
*/
-static int find_trailer_start(struct strbuf **lines, int count)
+static size_t find_trailer_start(const char *buf, size_t len)
{
- int start, end_of_title, only_spaces = 1;
+ const char *s;
+ ssize_t end_of_title, l;
+ int only_spaces = 1;
int recognized_prefix = 0, trailer_lines = 0, non_trailer_lines = 0;
/*
* Number of possible continuation lines encountered. This will be
int possible_continuation_lines = 0;
/* The first paragraph is the title and cannot be trailers */
- for (start = 0; start < count; start++) {
- if (lines[start]->buf[0] == comment_line_char)
+ for (s = buf; s < buf + len; s = next_line(s)) {
+ if (s[0] == comment_line_char)
continue;
- if (contains_only_spaces(lines[start]->buf))
+ if (is_blank_line(s))
break;
}
- end_of_title = start;
+ end_of_title = s - buf;
/*
* Get the start of the trailers by looking starting from the end for a
* trailers, or (ii) contains at least one Git-generated trailer and
* consists of at least 25% trailers.
*/
- for (start = count - 1; start >= end_of_title; start--) {
+ for (l = last_line(buf, len);
+ l >= end_of_title;
+ l = last_line(buf, l)) {
+ const char *bol = buf + l;
const char **p;
- int separator_pos;
+ ssize_t separator_pos;
- if (lines[start]->buf[0] == comment_line_char) {
+ if (bol[0] == comment_line_char) {
non_trailer_lines += possible_continuation_lines;
possible_continuation_lines = 0;
continue;
}
- if (contains_only_spaces(lines[start]->buf)) {
+ if (is_blank_line(bol)) {
if (only_spaces)
continue;
non_trailer_lines += possible_continuation_lines;
if (recognized_prefix &&
trailer_lines * 3 >= non_trailer_lines)
- return start + 1;
- if (trailer_lines && !non_trailer_lines)
- return start + 1;
- return count;
+ return next_line(bol) - buf;
+ else if (trailer_lines && !non_trailer_lines)
+ return next_line(bol) - buf;
+ return len;
}
only_spaces = 0;
for (p = git_generated_prefixes; *p; p++) {
- if (starts_with(lines[start]->buf, *p)) {
+ if (starts_with(bol, *p)) {
trailer_lines++;
possible_continuation_lines = 0;
recognized_prefix = 1;
}
}
- separator_pos = find_separator(lines[start]->buf, separators);
- if (separator_pos >= 1 && !isspace(lines[start]->buf[0])) {
+ separator_pos = find_separator(bol, separators);
+ if (separator_pos >= 1 && !isspace(bol[0])) {
struct list_head *pos;
trailer_lines++;
list_for_each(pos, &conf_head) {
struct arg_item *item;
item = list_entry(pos, struct arg_item, list);
- if (token_matches_item(lines[start]->buf, item,
+ if (token_matches_item(bol, item,
separator_pos)) {
recognized_prefix = 1;
break;
}
}
- } else if (isspace(lines[start]->buf[0]))
+ } else if (isspace(bol[0]))
possible_continuation_lines++;
else {
non_trailer_lines++;
;
}
- return count;
+ return len;
}
-/* Get the index of the end of the trailers */
-static int find_trailer_end(struct strbuf **lines, int patch_start)
+/* Return the position of the end of the trailers. */
+static size_t find_trailer_end(const char *buf, size_t len)
{
- struct strbuf sb = STRBUF_INIT;
- int i, ignore_bytes;
-
- for (i = 0; i < patch_start; i++)
- strbuf_addbuf(&sb, lines[i]);
- ignore_bytes = ignore_non_trailer(&sb);
- strbuf_release(&sb);
- for (i = patch_start - 1; i >= 0 && ignore_bytes > 0; i--)
- ignore_bytes -= lines[i]->len;
-
- return i + 1;
+ return len - ignore_non_trailer(buf, len);
}
-static int has_blank_line_before(struct strbuf **lines, int start)
+static int ends_with_blank_line(const char *buf, size_t len)
{
- for (;start >= 0; start--) {
- if (lines[start]->buf[0] == comment_line_char)
- continue;
- return contains_only_spaces(lines[start]->buf);
- }
- return 0;
+ ssize_t ll = last_line(buf, len);
+ if (ll < 0)
+ return 0;
+ return is_blank_line(buf + ll);
}
-static void print_lines(FILE *outfile, struct strbuf **lines, int start, int end)
+static void unfold_value(struct strbuf *val)
{
- int i;
- for (i = start; lines[i] && i < end; i++)
- fprintf(outfile, "%s", lines[i]->buf);
+ struct strbuf out = STRBUF_INIT;
+ size_t i;
+
+ strbuf_grow(&out, val->len);
+ i = 0;
+ while (i < val->len) {
+ char c = val->buf[i++];
+ if (c == '\n') {
+ /* Collapse continuation down to a single space. */
+ while (i < val->len && isspace(val->buf[i]))
+ i++;
+ strbuf_addch(&out, ' ');
+ } else {
+ strbuf_addch(&out, c);
+ }
+ }
+
+ /* Empty lines may have left us with whitespace cruft at the edges */
+ strbuf_trim(&out);
+
+ /* output goes back to val as if we modified it in-place */
+ strbuf_swap(&out, val);
+ strbuf_release(&out);
}
-static int process_input_file(FILE *outfile,
- struct strbuf **lines,
- struct list_head *head)
+static size_t process_input_file(FILE *outfile,
+ const char *str,
+ struct list_head *head,
+ const struct process_trailer_options *opts)
{
- int count = 0;
- int patch_start, trailer_start, trailer_end, i;
+ struct trailer_info info;
struct strbuf tok = STRBUF_INIT;
struct strbuf val = STRBUF_INIT;
- struct trailer_item *last = NULL;
+ size_t i;
- /* Get the line count */
- while (lines[count])
- count++;
-
- patch_start = find_patch_start(lines, count);
- trailer_end = find_trailer_end(lines, patch_start);
- trailer_start = find_trailer_start(lines, trailer_end);
+ trailer_info_get(&info, str, opts);
/* Print lines before the trailers as is */
- print_lines(outfile, lines, 0, trailer_start);
+ if (!opts->only_trailers)
+ fwrite(str, 1, info.trailer_start - str, outfile);
- if (!has_blank_line_before(lines, trailer_start - 1))
+ if (!opts->only_trailers && !info.blank_line_before_trailer)
fprintf(outfile, "\n");
- /* Parse trailer lines */
- for (i = trailer_start; i < trailer_end; i++) {
+ for (i = 0; i < info.trailer_nr; i++) {
int separator_pos;
- if (lines[i]->buf[0] == comment_line_char)
- continue;
- if (last && isspace(lines[i]->buf[0])) {
- struct strbuf sb = STRBUF_INIT;
- strbuf_addf(&sb, "%s\n%s", last->value, lines[i]->buf);
- strbuf_strip_suffix(&sb, "\n");
- free(last->value);
- last->value = strbuf_detach(&sb, NULL);
+ char *trailer = info.trailers[i];
+ if (trailer[0] == comment_line_char)
continue;
- }
- separator_pos = find_separator(lines[i]->buf, separators);
+ separator_pos = find_separator(trailer, separators);
if (separator_pos >= 1) {
- parse_trailer(&tok, &val, NULL, lines[i]->buf,
+ parse_trailer(&tok, &val, NULL, trailer,
separator_pos);
- last = add_trailer_item(head,
- strbuf_detach(&tok, NULL),
- strbuf_detach(&val, NULL));
- } else {
- strbuf_addbuf(&val, lines[i]);
+ if (opts->unfold)
+ unfold_value(&val);
+ add_trailer_item(head,
+ strbuf_detach(&tok, NULL),
+ strbuf_detach(&val, NULL));
+ } else if (!opts->only_trailers) {
+ strbuf_addstr(&val, trailer);
strbuf_strip_suffix(&val, "\n");
add_trailer_item(head,
NULL,
strbuf_detach(&val, NULL));
- last = NULL;
}
}
- return trailer_end;
+ trailer_info_release(&info);
+
+ return info.trailer_end - str;
}
static void free_all(struct list_head *head)
}
}
-static struct tempfile trailers_tempfile;
+static struct tempfile *trailers_tempfile;
static FILE *create_in_place_tempfile(const char *file)
{
struct stat st;
- struct strbuf template = STRBUF_INIT;
+ struct strbuf filename_template = STRBUF_INIT;
const char *tail;
FILE *outfile;
/* Create temporary file in the same directory as the original */
tail = strrchr(file, '/');
if (tail != NULL)
- strbuf_add(&template, file, tail - file + 1);
- strbuf_addstr(&template, "git-interpret-trailers-XXXXXX");
+ strbuf_add(&filename_template, file, tail - file + 1);
+ strbuf_addstr(&filename_template, "git-interpret-trailers-XXXXXX");
- xmks_tempfile_m(&trailers_tempfile, template.buf, st.st_mode);
- strbuf_release(&template);
- outfile = fdopen_tempfile(&trailers_tempfile, "w");
+ trailers_tempfile = xmks_tempfile_m(filename_template.buf, st.st_mode);
+ strbuf_release(&filename_template);
+ outfile = fdopen_tempfile(trailers_tempfile, "w");
if (!outfile)
die_errno(_("could not open temporary file"));
return outfile;
}
-void process_trailers(const char *file, int in_place, int trim_empty, struct string_list *trailers)
+void process_trailers(const char *file,
+ const struct process_trailer_options *opts,
+ struct list_head *new_trailer_head)
{
LIST_HEAD(head);
- LIST_HEAD(arg_head);
- struct strbuf **lines;
- int trailer_end;
+ struct strbuf sb = STRBUF_INIT;
+ size_t trailer_end;
FILE *outfile = stdout;
- /* Default config must be setup first */
- git_config(git_trailer_default_config, NULL);
- git_config(git_trailer_config, NULL);
+ ensure_configured();
- lines = read_input_file(file);
+ read_input_file(&sb, file);
- if (in_place)
+ if (opts->in_place)
outfile = create_in_place_tempfile(file);
/* Print the lines before the trailers */
- trailer_end = process_input_file(outfile, lines, &head);
-
- process_command_line_args(&arg_head, trailers);
+ trailer_end = process_input_file(outfile, sb.buf, &head, opts);
- process_trailers_lists(&head, &arg_head);
+ if (!opts->only_input) {
+ LIST_HEAD(arg_head);
+ process_command_line_args(&arg_head, new_trailer_head);
+ process_trailers_lists(&head, &arg_head);
+ }
- print_all(outfile, &head, trim_empty);
+ print_all(outfile, &head, opts);
free_all(&head);
/* Print the lines after the trailers as is */
- print_lines(outfile, lines, trailer_end, INT_MAX);
+ if (!opts->only_trailers)
+ fwrite(sb.buf + trailer_end, 1, sb.len - trailer_end, outfile);
- if (in_place)
+ if (opts->in_place)
if (rename_tempfile(&trailers_tempfile, file))
die_errno(_("could not rename temporary file to %s"), file);
- strbuf_list_free(lines);
+ strbuf_release(&sb);
+}
+
+void trailer_info_get(struct trailer_info *info, const char *str,
+ const struct process_trailer_options *opts)
+{
+ int patch_start, trailer_end, trailer_start;
+ struct strbuf **trailer_lines, **ptr;
+ char **trailer_strings = NULL;
+ size_t nr = 0, alloc = 0;
+ char **last = NULL;
+
+ ensure_configured();
+
+ if (opts->no_divider)
+ patch_start = strlen(str);
+ else
+ patch_start = find_patch_start(str);
+
+ trailer_end = find_trailer_end(str, patch_start);
+ trailer_start = find_trailer_start(str, trailer_end);
+
+ trailer_lines = strbuf_split_buf(str + trailer_start,
+ trailer_end - trailer_start,
+ '\n',
+ 0);
+ for (ptr = trailer_lines; *ptr; ptr++) {
+ if (last && isspace((*ptr)->buf[0])) {
+ struct strbuf sb = STRBUF_INIT;
+ strbuf_attach(&sb, *last, strlen(*last), strlen(*last));
+ strbuf_addbuf(&sb, *ptr);
+ *last = strbuf_detach(&sb, NULL);
+ continue;
+ }
+ ALLOC_GROW(trailer_strings, nr + 1, alloc);
+ trailer_strings[nr] = strbuf_detach(*ptr, NULL);
+ last = find_separator(trailer_strings[nr], separators) >= 1
+ ? &trailer_strings[nr]
+ : NULL;
+ nr++;
+ }
+ strbuf_list_free(trailer_lines);
+
+ info->blank_line_before_trailer = ends_with_blank_line(str,
+ trailer_start);
+ info->trailer_start = str + trailer_start;
+ info->trailer_end = str + trailer_end;
+ info->trailers = trailer_strings;
+ info->trailer_nr = nr;
+}
+
+void trailer_info_release(struct trailer_info *info)
+{
+ size_t i;
+ for (i = 0; i < info->trailer_nr; i++)
+ free(info->trailers[i]);
+ free(info->trailers);
+}
+
+static void format_trailer_info(struct strbuf *out,
+ const struct trailer_info *info,
+ const struct process_trailer_options *opts)
+{
+ size_t origlen = out->len;
+ size_t i;
+
+ /* If we want the whole block untouched, we can take the fast path. */
+ if (!opts->only_trailers && !opts->unfold && !opts->filter && !opts->separator) {
+ strbuf_add(out, info->trailer_start,
+ info->trailer_end - info->trailer_start);
+ return;
+ }
+
+ for (i = 0; i < info->trailer_nr; i++) {
+ char *trailer = info->trailers[i];
+ ssize_t separator_pos = find_separator(trailer, separators);
+
+ if (separator_pos >= 1) {
+ struct strbuf tok = STRBUF_INIT;
+ struct strbuf val = STRBUF_INIT;
+
+ parse_trailer(&tok, &val, NULL, trailer, separator_pos);
+ if (!opts->filter || opts->filter(&tok, opts->filter_data)) {
+ if (opts->unfold)
+ unfold_value(&val);
+
+ if (opts->separator && out->len != origlen)
+ strbuf_addbuf(out, opts->separator);
+ if (!opts->value_only)
+ strbuf_addf(out, "%s: ", tok.buf);
+ strbuf_addbuf(out, &val);
+ if (!opts->separator)
+ strbuf_addch(out, '\n');
+ }
+ strbuf_release(&tok);
+ strbuf_release(&val);
+
+ } else if (!opts->only_trailers) {
+ if (opts->separator && out->len != origlen) {
+ strbuf_addbuf(out, opts->separator);
+ }
+ strbuf_addstr(out, trailer);
+ if (opts->separator) {
+ strbuf_rtrim(out);
+ }
+ }
+ }
+
+}
+
+void format_trailers_from_commit(struct strbuf *out, const char *msg,
+ const struct process_trailer_options *opts)
+{
+ struct trailer_info info;
+
+ trailer_info_get(&info, msg, opts);
+ format_trailer_info(out, &info, opts);
+ trailer_info_release(&info);
+}
+
+void trailer_iterator_init(struct trailer_iterator *iter, const char *msg)
+{
+ struct process_trailer_options opts = PROCESS_TRAILER_OPTIONS_INIT;
+ strbuf_init(&iter->key, 0);
+ strbuf_init(&iter->val, 0);
+ opts.no_divider = 1;
+ trailer_info_get(&iter->info, msg, &opts);
+ iter->cur = 0;
+}
+
+int trailer_iterator_advance(struct trailer_iterator *iter)
+{
+ while (iter->cur < iter->info.trailer_nr) {
+ char *trailer = iter->info.trailers[iter->cur++];
+ int separator_pos = find_separator(trailer, separators);
+
+ if (separator_pos < 1)
+ continue; /* not a real trailer */
+
+ strbuf_reset(&iter->key);
+ strbuf_reset(&iter->val);
+ parse_trailer(&iter->key, &iter->val, NULL,
+ trailer, separator_pos);
+ unfold_value(&iter->val);
+ return 1;
+ }
+ return 0;
+}
+
+void trailer_iterator_release(struct trailer_iterator *iter)
+{
+ trailer_info_release(&iter->info);
+ strbuf_release(&iter->val);
+ strbuf_release(&iter->key);
}
projects / platform / upstream / git.git / blobdiff