#include "cache.h"
#include "refs.h"
+#include "string-list.h"
#include "utf8.h"
int starts_with(const char *str, const char *prefix)
return 0;
}
+int istarts_with(const char *str, const char *prefix)
+{
+ for (; ; str++, prefix++)
+ if (!*prefix)
+ return 1;
+ else if (tolower(*str) != tolower(*prefix))
+ return 0;
+}
+
+int skip_to_optional_arg_default(const char *str, const char *prefix,
+ const char **arg, const char *def)
+{
+ const char *p;
+
+ if (!skip_prefix(str, prefix, &p))
+ return 0;
+
+ if (!*p) {
+ if (arg)
+ *arg = def;
+ return 1;
+ }
+
+ if (*p != '=')
+ return 0;
+
+ if (arg)
+ *arg = p + 1;
+ return 1;
+}
+
/*
* Used as the default ->buf value, so that people can always assume
* buf is non NULL and ->buf is NUL terminated even for a freshly
strbuf_rtrim(sb);
strbuf_ltrim(sb);
}
+
void strbuf_rtrim(struct strbuf *sb)
{
while (sb->len > 0 && isspace((unsigned char)sb->buf[sb->len - 1]))
sb->buf[sb->len] = '\0';
}
+void strbuf_trim_trailing_dir_sep(struct strbuf *sb)
+{
+ while (sb->len > 0 && is_dir_sep((unsigned char)sb->buf[sb->len - 1]))
+ sb->len--;
+ sb->buf[sb->len] = '\0';
+}
+
void strbuf_ltrim(struct strbuf *sb)
{
char *b = sb->buf;
return ret;
}
+void strbuf_add_separated_string_list(struct strbuf *str,
+ const char *sep,
+ struct string_list *slist)
+{
+ struct string_list_item *item;
+ int sep_needed = 0;
+
+ for_each_string_list_item(item, slist) {
+ if (sep_needed)
+ strbuf_addstr(str, sep);
+ strbuf_addstr(str, item->string);
+ sep_needed = 1;
+ }
+}
+
void strbuf_list_free(struct strbuf **sbs)
{
struct strbuf **s = sbs;
void strbuf_remove(struct strbuf *sb, size_t pos, size_t len)
{
- strbuf_splice(sb, pos, len, NULL, 0);
+ strbuf_splice(sb, pos, len, "", 0);
}
void strbuf_add(struct strbuf *sb, const void *data, size_t len)
strbuf_setlen(sb, sb->len + len);
}
-void strbuf_adddup(struct strbuf *sb, size_t pos, size_t len)
+void strbuf_addbuf(struct strbuf *sb, const struct strbuf *sb2)
{
- strbuf_grow(sb, len);
- memcpy(sb->buf + sb->len, sb->buf + pos, len);
- strbuf_setlen(sb, sb->len + len);
+ strbuf_grow(sb, sb2->len);
+ memcpy(sb->buf + sb->len, sb2->buf, sb2->len);
+ strbuf_setlen(sb, sb->len + sb2->len);
+}
+
+void strbuf_addchars(struct strbuf *sb, int c, size_t n)
+{
+ strbuf_grow(sb, n);
+ memset(sb->buf + sb->len, c, n);
+ strbuf_setlen(sb, sb->len + n);
}
void strbuf_addf(struct strbuf *sb, const char *fmt, ...)
const char *next = memchr(buf, '\n', size);
next = next ? (next + 1) : (buf + size);
- prefix = (prefix2 && buf[0] == '\n') ? prefix2 : prefix1;
+ prefix = ((prefix2 && (buf[0] == '\n' || buf[0] == '\t'))
+ ? prefix2 : prefix1);
strbuf_addstr(out, prefix);
strbuf_add(out, buf, next - buf);
size -= next - buf;
static char prefix2[2];
if (prefix1[0] != comment_line_char) {
- sprintf(prefix1, "%c ", comment_line_char);
- sprintf(prefix2, "%c", comment_line_char);
+ xsnprintf(prefix1, sizeof(prefix1), "%c ", comment_line_char);
+ xsnprintf(prefix2, sizeof(prefix2), "%c", comment_line_char);
}
add_lines(out, prefix1, prefix2, buf, size);
}
len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, cp);
va_end(cp);
if (len < 0)
- die("BUG: your vsnprintf is broken (returned %d)", len);
+ BUG("your vsnprintf is broken (returned %d)", len);
if (len > strbuf_avail(sb)) {
strbuf_grow(sb, len);
len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
if (len > strbuf_avail(sb))
- die("BUG: your vsnprintf is broken (insatiable)");
+ BUG("your vsnprintf is broken (insatiable)");
}
strbuf_setlen(sb, sb->len + len);
}
strbuf_grow(sb, hint ? hint : 8192);
for (;;) {
- ssize_t cnt;
+ ssize_t want = sb->alloc - sb->len - 1;
+ ssize_t got = read_in_full(fd, sb->buf + sb->len, want);
- cnt = xread(fd, sb->buf + sb->len, sb->alloc - sb->len - 1);
- if (cnt < 0) {
+ if (got < 0) {
if (oldalloc == 0)
strbuf_release(sb);
else
strbuf_setlen(sb, oldlen);
return -1;
}
- if (!cnt)
+ sb->len += got;
+ if (got < want)
break;
- sb->len += cnt;
strbuf_grow(sb, 8192);
}
return sb->len - oldlen;
}
+ssize_t strbuf_read_once(struct strbuf *sb, int fd, size_t hint)
+{
+ size_t oldalloc = sb->alloc;
+ ssize_t cnt;
+
+ strbuf_grow(sb, hint ? hint : 8192);
+ cnt = xread(fd, sb->buf + sb->len, sb->alloc - sb->len - 1);
+ if (cnt > 0)
+ strbuf_setlen(sb, sb->len + cnt);
+ else if (oldalloc == 0)
+ strbuf_release(sb);
+ return cnt;
+}
+
+ssize_t strbuf_write(struct strbuf *sb, FILE *f)
+{
+ return sb->len ? fwrite(sb->buf, 1, sb->len, f) : 0;
+}
+
+
#define STRBUF_MAXLINK (2*PATH_MAX)
int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint)
return -1;
}
+int strbuf_getcwd(struct strbuf *sb)
+{
+ size_t oldalloc = sb->alloc;
+ size_t guessed_len = 128;
+
+ for (;; guessed_len *= 2) {
+ strbuf_grow(sb, guessed_len);
+ if (getcwd(sb->buf, sb->alloc)) {
+ strbuf_setlen(sb, strlen(sb->buf));
+ return 0;
+ }
+
+ /*
+ * If getcwd(3) is implemented as a syscall that falls
+ * back to a regular lookup using readdir(3) etc. then
+ * we may be able to avoid EACCES by providing enough
+ * space to the syscall as it's not necessarily bound
+ * to the same restrictions as the fallback.
+ */
+ if (errno == EACCES && guessed_len < PATH_MAX)
+ continue;
+
+ if (errno != ERANGE)
+ break;
+ }
+ if (oldalloc == 0)
+ strbuf_release(sb);
+ else
+ strbuf_reset(sb);
+ return -1;
+}
+
+#ifdef HAVE_GETDELIM
+int strbuf_getwholeline(struct strbuf *sb, FILE *fp, int term)
+{
+ ssize_t r;
+
+ if (feof(fp))
+ return EOF;
+
+ strbuf_reset(sb);
+
+ /* Translate slopbuf to NULL, as we cannot call realloc on it */
+ if (!sb->alloc)
+ sb->buf = NULL;
+ errno = 0;
+ r = getdelim(&sb->buf, &sb->alloc, term, fp);
+
+ if (r > 0) {
+ sb->len = r;
+ return 0;
+ }
+ assert(r == -1);
+
+ /*
+ * Normally we would have called xrealloc, which will try to free
+ * memory and recover. But we have no way to tell getdelim() to do so.
+ * Worse, we cannot try to recover ENOMEM ourselves, because we have
+ * no idea how many bytes were read by getdelim.
+ *
+ * Dying here is reasonable. It mirrors what xrealloc would do on
+ * catastrophic memory failure. We skip the opportunity to free pack
+ * memory and retry, but that's unlikely to help for a malloc small
+ * enough to hold a single line of input, anyway.
+ */
+ if (errno == ENOMEM)
+ die("Out of memory, getdelim failed");
+
+ /*
+ * Restore strbuf invariants; if getdelim left us with a NULL pointer,
+ * we can just re-init, but otherwise we should make sure that our
+ * length is empty, and that the result is NUL-terminated.
+ */
+ if (!sb->buf)
+ strbuf_init(sb, 0);
+ else
+ strbuf_reset(sb);
+ return EOF;
+}
+#else
int strbuf_getwholeline(struct strbuf *sb, FILE *fp, int term)
{
int ch;
return EOF;
strbuf_reset(sb);
- while ((ch = fgetc(fp)) != EOF) {
- strbuf_grow(sb, 1);
+ flockfile(fp);
+ while ((ch = getc_unlocked(fp)) != EOF) {
+ if (!strbuf_avail(sb))
+ strbuf_grow(sb, 1);
sb->buf[sb->len++] = ch;
if (ch == term)
break;
}
+ funlockfile(fp);
if (ch == EOF && sb->len == 0)
return EOF;
sb->buf[sb->len] = '\0';
return 0;
}
+#endif
-int strbuf_getline(struct strbuf *sb, FILE *fp, int term)
+static int strbuf_getdelim(struct strbuf *sb, FILE *fp, int term)
{
if (strbuf_getwholeline(sb, fp, term))
return EOF;
- if (sb->buf[sb->len-1] == term)
- strbuf_setlen(sb, sb->len-1);
+ if (sb->buf[sb->len - 1] == term)
+ strbuf_setlen(sb, sb->len - 1);
+ return 0;
+}
+
+int strbuf_getline(struct strbuf *sb, FILE *fp)
+{
+ if (strbuf_getwholeline(sb, fp, '\n'))
+ return EOF;
+ if (sb->buf[sb->len - 1] == '\n') {
+ strbuf_setlen(sb, sb->len - 1);
+ if (sb->len && sb->buf[sb->len - 1] == '\r')
+ strbuf_setlen(sb, sb->len - 1);
+ }
return 0;
}
+int strbuf_getline_lf(struct strbuf *sb, FILE *fp)
+{
+ return strbuf_getdelim(sb, fp, '\n');
+}
+
+int strbuf_getline_nul(struct strbuf *sb, FILE *fp)
+{
+ return strbuf_getdelim(sb, fp, '\0');
+}
+
int strbuf_getwholeline_fd(struct strbuf *sb, int fd, int term)
{
strbuf_reset(sb);
return 0;
}
-int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint)
+ssize_t strbuf_read_file(struct strbuf *sb, const char *path, size_t hint)
{
- int fd, len;
+ int fd;
+ ssize_t len;
+ int saved_errno;
fd = open(path, O_RDONLY);
if (fd < 0)
return -1;
len = strbuf_read(sb, fd, hint);
+ saved_errno = errno;
close(fd);
- if (len < 0)
+ if (len < 0) {
+ errno = saved_errno;
return -1;
+ }
return len;
}
(!reserved && is_rfc3986_reserved(ch)))
strbuf_addch(sb, ch);
else
- strbuf_addf(sb, "%%%02x", ch);
+ strbuf_addf(sb, "%%%02x", (unsigned char)ch);
}
}
}
}
+void strbuf_add_absolute_path(struct strbuf *sb, const char *path)
+{
+ if (!*path)
+ die("The empty string is not a valid path");
+ if (!is_absolute_path(path)) {
+ struct stat cwd_stat, pwd_stat;
+ size_t orig_len = sb->len;
+ char *cwd = xgetcwd();
+ char *pwd = getenv("PWD");
+ if (pwd && strcmp(pwd, cwd) &&
+ !stat(cwd, &cwd_stat) &&
+ (cwd_stat.st_dev || cwd_stat.st_ino) &&
+ !stat(pwd, &pwd_stat) &&
+ pwd_stat.st_dev == cwd_stat.st_dev &&
+ pwd_stat.st_ino == cwd_stat.st_ino)
+ strbuf_addstr(sb, pwd);
+ else
+ strbuf_addstr(sb, cwd);
+ if (sb->len > orig_len && !is_dir_sep(sb->buf[sb->len - 1]))
+ strbuf_addch(sb, '/');
+ free(cwd);
+ }
+ strbuf_addstr(sb, path);
+}
+
+void strbuf_add_real_path(struct strbuf *sb, const char *path)
+{
+ if (sb->len) {
+ struct strbuf resolved = STRBUF_INIT;
+ strbuf_realpath(&resolved, path, 1);
+ strbuf_addbuf(sb, &resolved);
+ strbuf_release(&resolved);
+ } else
+ strbuf_realpath(sb, path, 1);
+}
+
int printf_ln(const char *fmt, ...)
{
int ret;
size_t len, i;
len = strlen(string);
- result = xmalloc(len + 1);
+ result = xmallocz(len);
for (i = 0; i < len; i++)
result[i] = tolower(string[i]);
- result[i] = '\0';
+ return result;
+}
+
+char *xstrdup_toupper(const char *string)
+{
+ char *result;
+ size_t len, i;
+
+ len = strlen(string);
+ result = xmallocz(len);
+ for (i = 0; i < len; i++)
+ result[i] = toupper(string[i]);
return result;
}
return ret;
}
+
+void strbuf_addftime(struct strbuf *sb, const char *fmt, const struct tm *tm,
+ int tz_offset, int suppress_tz_name)
+{
+ struct strbuf munged_fmt = STRBUF_INIT;
+ size_t hint = 128;
+ size_t len;
+
+ if (!*fmt)
+ return;
+
+ /*
+ * There is no portable way to pass timezone information to
+ * strftime, so we handle %z and %Z here.
+ */
+ for (;;) {
+ const char *percent = strchrnul(fmt, '%');
+ strbuf_add(&munged_fmt, fmt, percent - fmt);
+ if (!*percent)
+ break;
+ fmt = percent + 1;
+ switch (*fmt) {
+ case '%':
+ strbuf_addstr(&munged_fmt, "%%");
+ fmt++;
+ break;
+ case 'z':
+ strbuf_addf(&munged_fmt, "%+05d", tz_offset);
+ fmt++;
+ break;
+ case 'Z':
+ if (suppress_tz_name) {
+ fmt++;
+ break;
+ }
+ /* FALLTHROUGH */
+ default:
+ strbuf_addch(&munged_fmt, '%');
+ }
+ }
+ fmt = munged_fmt.buf;
+
+ strbuf_grow(sb, hint);
+ len = strftime(sb->buf + sb->len, sb->alloc - sb->len, fmt, tm);
+
+ if (!len) {
+ /*
+ * strftime reports "0" if it could not fit the result in the buffer.
+ * Unfortunately, it also reports "0" if the requested time string
+ * takes 0 bytes. So our strategy is to munge the format so that the
+ * output contains at least one character, and then drop the extra
+ * character before returning.
+ */
+ strbuf_addch(&munged_fmt, ' ');
+ while (!len) {
+ hint *= 2;
+ strbuf_grow(sb, hint);
+ len = strftime(sb->buf + sb->len, sb->alloc - sb->len,
+ munged_fmt.buf, tm);
+ }
+ len--; /* drop munged space */
+ }
+ strbuf_release(&munged_fmt);
+ strbuf_setlen(sb, sb->len + len);
+}
+
+void strbuf_add_unique_abbrev(struct strbuf *sb, const struct object_id *oid,
+ int abbrev_len)
+{
+ int r;
+ strbuf_grow(sb, GIT_SHA1_HEXSZ + 1);
+ r = find_unique_abbrev_r(sb->buf + sb->len, oid, abbrev_len);
+ strbuf_setlen(sb, sb->len + r);
+}
+
+/*
+ * Returns the length of a line, without trailing spaces.
+ *
+ * If the line ends with newline, it will be removed too.
+ */
+static size_t cleanup(char *line, size_t len)
+{
+ while (len) {
+ unsigned char c = line[len - 1];
+ if (!isspace(c))
+ break;
+ len--;
+ }
+
+ return len;
+}
+
+/*
+ * Remove empty lines from the beginning and end
+ * and also trailing spaces from every line.
+ *
+ * Turn multiple consecutive empty lines between paragraphs
+ * into just one empty line.
+ *
+ * If the input has only empty lines and spaces,
+ * no output will be produced.
+ *
+ * If last line does not have a newline at the end, one is added.
+ *
+ * Enable skip_comments to skip every line starting with comment
+ * character.
+ */
+void strbuf_stripspace(struct strbuf *sb, int skip_comments)
+{
+ int empties = 0;
+ size_t i, j, len, newlen;
+ char *eol;
+
+ /* We may have to add a newline. */
+ strbuf_grow(sb, 1);
+
+ for (i = j = 0; i < sb->len; i += len, j += newlen) {
+ eol = memchr(sb->buf + i, '\n', sb->len - i);
+ len = eol ? eol - (sb->buf + i) + 1 : sb->len - i;
+
+ if (skip_comments && len && sb->buf[i] == comment_line_char) {
+ newlen = 0;
+ continue;
+ }
+ newlen = cleanup(sb->buf + i, len);
+
+ /* Not just an empty line? */
+ if (newlen) {
+ if (empties > 0 && j > 0)
+ sb->buf[j++] = '\n';
+ empties = 0;
+ memmove(sb->buf + j, sb->buf + i, newlen);
+ sb->buf[newlen + j++] = '\n';
+ } else {
+ empties++;
+ }
+ }
+
+ strbuf_setlen(sb, j);
+}
+
+int strbuf_normalize_path(struct strbuf *src)
+{
+ struct strbuf dst = STRBUF_INIT;
+
+ strbuf_grow(&dst, src->len);
+ if (normalize_path_copy(dst.buf, src->buf) < 0) {
+ strbuf_release(&dst);
+ return -1;
+ }
+
+ /*
+ * normalize_path does not tell us the new length, so we have to
+ * compute it by looking for the new NUL it placed
+ */
+ strbuf_setlen(&dst, strlen(dst.buf));
+ strbuf_swap(src, &dst);
+ strbuf_release(&dst);
+ return 0;
+}
projects / platform / upstream / git.git / blobdiff