Elijah Newren | e93fc5d | 2023-04-11 00:41:50 -0700 | [diff] [blame] | 1 | #include "git-compat-util.h" |
Elijah Newren | f394e09 | 2023-03-21 06:25:54 +0000 | [diff] [blame] | 2 | #include "gettext.h" |
Calvin Wan | d88e810 | 2023-09-29 14:20:48 -0700 | [diff] [blame] | 3 | #include "hex-ll.h" |
Calvin Wan | 16b171f | 2023-06-06 19:48:38 +0000 | [diff] [blame] | 4 | #include "strbuf.h" |
Elijah Newren | f6f7755 | 2018-04-19 10:58:08 -0700 | [diff] [blame] | 5 | #include "string-list.h" |
Jeff King | d4241f5 | 2014-05-22 05:30:14 -0400 | [diff] [blame] | 6 | #include "utf8.h" |
Ævar Arnfjörð Bjarmason | 88c7b4c | 2022-02-16 09:14:02 +0100 | [diff] [blame] | 7 | #include "date.h" |
Junio C Hamano | d1df574 | 2005-04-25 18:26:45 -0700 | [diff] [blame] | 8 | |
Christian Couder | 9566231 | 2013-12-01 08:49:16 +0100 | [diff] [blame] | 9 | int starts_with(const char *str, const char *prefix) |
| 10 | { |
| 11 | for (; ; str++, prefix++) |
| 12 | if (!*prefix) |
| 13 | return 1; |
| 14 | else if (*str != *prefix) |
| 15 | return 0; |
| 16 | } |
| 17 | |
Lars Schneider | 66b8af3 | 2018-03-09 18:35:29 +0100 | [diff] [blame] | 18 | int istarts_with(const char *str, const char *prefix) |
| 19 | { |
| 20 | for (; ; str++, prefix++) |
| 21 | if (!*prefix) |
| 22 | return 1; |
| 23 | else if (tolower(*str) != tolower(*prefix)) |
| 24 | return 0; |
| 25 | } |
| 26 | |
Jeff King | 2ec225d | 2024-03-12 05:17:39 -0400 | [diff] [blame] | 27 | int starts_with_mem(const char *str, size_t len, const char *prefix) |
| 28 | { |
| 29 | const char *end = str + len; |
| 30 | for (; ; str++, prefix++) { |
| 31 | if (!*prefix) |
| 32 | return 1; |
| 33 | else if (str == end || *str != *prefix) |
| 34 | return 0; |
| 35 | } |
| 36 | } |
| 37 | |
Christian Couder | afaef55 | 2017-12-09 21:40:07 +0100 | [diff] [blame] | 38 | int skip_to_optional_arg_default(const char *str, const char *prefix, |
| 39 | const char **arg, const char *def) |
| 40 | { |
| 41 | const char *p; |
| 42 | |
| 43 | if (!skip_prefix(str, prefix, &p)) |
| 44 | return 0; |
| 45 | |
| 46 | if (!*p) { |
| 47 | if (arg) |
| 48 | *arg = def; |
| 49 | return 1; |
| 50 | } |
| 51 | |
| 52 | if (*p != '=') |
| 53 | return 0; |
| 54 | |
| 55 | if (arg) |
| 56 | *arg = p + 1; |
| 57 | return 1; |
| 58 | } |
| 59 | |
Pierre Habouzit | b315c5c | 2007-09-27 12:58:23 +0200 | [diff] [blame] | 60 | /* |
| 61 | * Used as the default ->buf value, so that people can always assume |
| 62 | * buf is non NULL and ->buf is NUL terminated even for a freshly |
| 63 | * initialized strbuf. |
| 64 | */ |
| 65 | char strbuf_slopbuf[1]; |
| 66 | |
Pierre Habouzit | 917c9a7 | 2007-09-15 15:56:50 +0200 | [diff] [blame] | 67 | void strbuf_init(struct strbuf *sb, size_t hint) |
| 68 | { |
Ævar Arnfjörð Bjarmason | 5726a6b | 2021-07-01 12:51:26 +0200 | [diff] [blame] | 69 | struct strbuf blank = STRBUF_INIT; |
| 70 | memcpy(sb, &blank, sizeof(*sb)); |
Thomas Rast | 8c74ef1 | 2011-08-29 23:16:12 +0200 | [diff] [blame] | 71 | if (hint) |
Pierre Habouzit | f1696ee | 2007-09-10 12:35:04 +0200 | [diff] [blame] | 72 | strbuf_grow(sb, hint); |
Junio C Hamano | d1df574 | 2005-04-25 18:26:45 -0700 | [diff] [blame] | 73 | } |
| 74 | |
Pierre Habouzit | 917c9a7 | 2007-09-15 15:56:50 +0200 | [diff] [blame] | 75 | void strbuf_release(struct strbuf *sb) |
| 76 | { |
Pierre Habouzit | b315c5c | 2007-09-27 12:58:23 +0200 | [diff] [blame] | 77 | if (sb->alloc) { |
| 78 | free(sb->buf); |
| 79 | strbuf_init(sb, 0); |
| 80 | } |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 81 | } |
| 82 | |
Pierre Habouzit | b315c5c | 2007-09-27 12:58:23 +0200 | [diff] [blame] | 83 | char *strbuf_detach(struct strbuf *sb, size_t *sz) |
Pierre Habouzit | 917c9a7 | 2007-09-15 15:56:50 +0200 | [diff] [blame] | 84 | { |
Jeff King | 08ad56f | 2012-10-18 06:00:12 -0400 | [diff] [blame] | 85 | char *res; |
| 86 | strbuf_grow(sb, 0); |
| 87 | res = sb->buf; |
Pierre Habouzit | b315c5c | 2007-09-27 12:58:23 +0200 | [diff] [blame] | 88 | if (sz) |
| 89 | *sz = sb->len; |
Pierre Habouzit | f1696ee | 2007-09-10 12:35:04 +0200 | [diff] [blame] | 90 | strbuf_init(sb, 0); |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 91 | return res; |
Junio C Hamano | d1df574 | 2005-04-25 18:26:45 -0700 | [diff] [blame] | 92 | } |
| 93 | |
Pierre Habouzit | 917c9a7 | 2007-09-15 15:56:50 +0200 | [diff] [blame] | 94 | void strbuf_attach(struct strbuf *sb, void *buf, size_t len, size_t alloc) |
| 95 | { |
| 96 | strbuf_release(sb); |
| 97 | sb->buf = buf; |
| 98 | sb->len = len; |
| 99 | sb->alloc = alloc; |
| 100 | strbuf_grow(sb, 0); |
| 101 | sb->buf[sb->len] = '\0'; |
| 102 | } |
| 103 | |
| 104 | void strbuf_grow(struct strbuf *sb, size_t extra) |
| 105 | { |
Thomas Rast | 8c74ef1 | 2011-08-29 23:16:12 +0200 | [diff] [blame] | 106 | int new_buf = !sb->alloc; |
Jonathan Nieder | 1368f65 | 2010-10-10 21:59:26 -0500 | [diff] [blame] | 107 | if (unsigned_add_overflows(extra, 1) || |
| 108 | unsigned_add_overflows(sb->len, extra + 1)) |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 109 | die("you want to use way too much memory"); |
Thomas Rast | 8c74ef1 | 2011-08-29 23:16:12 +0200 | [diff] [blame] | 110 | if (new_buf) |
Pierre Habouzit | b315c5c | 2007-09-27 12:58:23 +0200 | [diff] [blame] | 111 | sb->buf = NULL; |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 112 | ALLOC_GROW(sb->buf, sb->len + extra + 1, sb->alloc); |
Thomas Rast | 8c74ef1 | 2011-08-29 23:16:12 +0200 | [diff] [blame] | 113 | if (new_buf) |
| 114 | sb->buf[0] = '\0'; |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 115 | } |
| 116 | |
Lukas Sandström | eacd6dc | 2008-07-13 20:29:18 +0200 | [diff] [blame] | 117 | void strbuf_trim(struct strbuf *sb) |
| 118 | { |
Brian Gesiak | 3bb55e8 | 2014-04-30 17:58:06 +0900 | [diff] [blame] | 119 | strbuf_rtrim(sb); |
| 120 | strbuf_ltrim(sb); |
Lukas Sandström | eacd6dc | 2008-07-13 20:29:18 +0200 | [diff] [blame] | 121 | } |
Nguyễn Thái Ngọc Duy | c64a8d2 | 2018-02-12 16:49:37 +0700 | [diff] [blame] | 122 | |
Pierre Habouzit | f1696ee | 2007-09-10 12:35:04 +0200 | [diff] [blame] | 123 | void strbuf_rtrim(struct strbuf *sb) |
| 124 | { |
| 125 | while (sb->len > 0 && isspace((unsigned char)sb->buf[sb->len - 1])) |
| 126 | sb->len--; |
| 127 | sb->buf[sb->len] = '\0'; |
| 128 | } |
| 129 | |
Nguyễn Thái Ngọc Duy | c64a8d2 | 2018-02-12 16:49:37 +0700 | [diff] [blame] | 130 | void strbuf_trim_trailing_dir_sep(struct strbuf *sb) |
| 131 | { |
| 132 | while (sb->len > 0 && is_dir_sep((unsigned char)sb->buf[sb->len - 1])) |
| 133 | sb->len--; |
| 134 | sb->buf[sb->len] = '\0'; |
| 135 | } |
| 136 | |
Pratik Karki | f957362 | 2018-08-08 20:51:16 +0545 | [diff] [blame] | 137 | void strbuf_trim_trailing_newline(struct strbuf *sb) |
| 138 | { |
| 139 | if (sb->len > 0 && sb->buf[sb->len - 1] == '\n') { |
| 140 | if (--sb->len > 0 && sb->buf[sb->len - 1] == '\r') |
| 141 | --sb->len; |
| 142 | sb->buf[sb->len] = '\0'; |
| 143 | } |
| 144 | } |
| 145 | |
Lukas Sandström | eacd6dc | 2008-07-13 20:29:18 +0200 | [diff] [blame] | 146 | void strbuf_ltrim(struct strbuf *sb) |
| 147 | { |
| 148 | char *b = sb->buf; |
| 149 | while (sb->len > 0 && isspace(*b)) { |
| 150 | b++; |
| 151 | sb->len--; |
| 152 | } |
| 153 | memmove(sb->buf, b, sb->len); |
| 154 | sb->buf[sb->len] = '\0'; |
| 155 | } |
| 156 | |
Jeff King | d4241f5 | 2014-05-22 05:30:14 -0400 | [diff] [blame] | 157 | int strbuf_reencode(struct strbuf *sb, const char *from, const char *to) |
| 158 | { |
| 159 | char *out; |
Jeff King | c7d017d | 2018-07-24 06:50:33 -0400 | [diff] [blame] | 160 | size_t len; |
Jeff King | d4241f5 | 2014-05-22 05:30:14 -0400 | [diff] [blame] | 161 | |
| 162 | if (same_encoding(from, to)) |
| 163 | return 0; |
| 164 | |
| 165 | out = reencode_string_len(sb->buf, sb->len, to, from, &len); |
| 166 | if (!out) |
| 167 | return -1; |
| 168 | |
| 169 | strbuf_attach(sb, out, len, len); |
| 170 | return 0; |
| 171 | } |
| 172 | |
Jeff King | ffb20ce | 2014-05-23 16:03:47 -0400 | [diff] [blame] | 173 | void strbuf_tolower(struct strbuf *sb) |
| 174 | { |
| 175 | char *p = sb->buf, *end = sb->buf + sb->len; |
| 176 | for (; p < end; p++) |
| 177 | *p = tolower(*p); |
| 178 | } |
| 179 | |
Michael Haggerty | 17b73dc | 2012-11-04 07:46:53 +0100 | [diff] [blame] | 180 | struct strbuf **strbuf_split_buf(const char *str, size_t slen, |
| 181 | int terminator, int max) |
Lukas Sandström | eacd6dc | 2008-07-13 20:29:18 +0200 | [diff] [blame] | 182 | { |
Michael Haggerty | b8c2c1f | 2012-11-04 07:46:51 +0100 | [diff] [blame] | 183 | struct strbuf **ret = NULL; |
| 184 | size_t nr = 0, alloc = 0; |
Lukas Sandström | eacd6dc | 2008-07-13 20:29:18 +0200 | [diff] [blame] | 185 | struct strbuf *t; |
| 186 | |
Michael Haggerty | 1173bb3 | 2012-11-04 07:46:52 +0100 | [diff] [blame] | 187 | while (slen) { |
| 188 | int len = slen; |
| 189 | if (max <= 0 || nr + 1 < max) { |
Michael Haggerty | 17b73dc | 2012-11-04 07:46:53 +0100 | [diff] [blame] | 190 | const char *end = memchr(str, terminator, slen); |
Michael Haggerty | 1173bb3 | 2012-11-04 07:46:52 +0100 | [diff] [blame] | 191 | if (end) |
| 192 | len = end - str + 1; |
| 193 | } |
Lukas Sandström | eacd6dc | 2008-07-13 20:29:18 +0200 | [diff] [blame] | 194 | t = xmalloc(sizeof(struct strbuf)); |
| 195 | strbuf_init(t, len); |
Michael Haggerty | 1173bb3 | 2012-11-04 07:46:52 +0100 | [diff] [blame] | 196 | strbuf_add(t, str, len); |
Michael Haggerty | b8c2c1f | 2012-11-04 07:46:51 +0100 | [diff] [blame] | 197 | ALLOC_GROW(ret, nr + 2, alloc); |
| 198 | ret[nr++] = t; |
Michael Haggerty | 1173bb3 | 2012-11-04 07:46:52 +0100 | [diff] [blame] | 199 | str += len; |
| 200 | slen -= len; |
Lukas Sandström | eacd6dc | 2008-07-13 20:29:18 +0200 | [diff] [blame] | 201 | } |
Michael Haggerty | b8c2c1f | 2012-11-04 07:46:51 +0100 | [diff] [blame] | 202 | ALLOC_GROW(ret, nr + 1, alloc); /* In case string was empty */ |
| 203 | ret[nr] = NULL; |
Lukas Sandström | eacd6dc | 2008-07-13 20:29:18 +0200 | [diff] [blame] | 204 | return ret; |
| 205 | } |
| 206 | |
Elijah Newren | f6f7755 | 2018-04-19 10:58:08 -0700 | [diff] [blame] | 207 | void strbuf_add_separated_string_list(struct strbuf *str, |
| 208 | const char *sep, |
| 209 | struct string_list *slist) |
| 210 | { |
| 211 | struct string_list_item *item; |
| 212 | int sep_needed = 0; |
| 213 | |
| 214 | for_each_string_list_item(item, slist) { |
| 215 | if (sep_needed) |
| 216 | strbuf_addstr(str, sep); |
| 217 | strbuf_addstr(str, item->string); |
| 218 | sep_needed = 1; |
| 219 | } |
| 220 | } |
| 221 | |
Lukas Sandström | eacd6dc | 2008-07-13 20:29:18 +0200 | [diff] [blame] | 222 | void strbuf_list_free(struct strbuf **sbs) |
| 223 | { |
| 224 | struct strbuf **s = sbs; |
| 225 | |
Andrzej Hunt | f3a9680 | 2021-04-25 14:16:16 +0000 | [diff] [blame] | 226 | if (!s) |
| 227 | return; |
Lukas Sandström | eacd6dc | 2008-07-13 20:29:18 +0200 | [diff] [blame] | 228 | while (*s) { |
| 229 | strbuf_release(*s); |
| 230 | free(*s++); |
| 231 | } |
| 232 | free(sbs); |
| 233 | } |
| 234 | |
Lukas Sandström | 9b200fd | 2008-07-13 20:28:24 +0200 | [diff] [blame] | 235 | int strbuf_cmp(const struct strbuf *a, const struct strbuf *b) |
Pierre Habouzit | 45f66f6 | 2007-09-24 11:25:03 +0200 | [diff] [blame] | 236 | { |
Jeff King | 26114c0 | 2018-07-24 06:51:08 -0400 | [diff] [blame] | 237 | size_t len = a->len < b->len ? a->len: b->len; |
Alex Riesen | 8f02465 | 2009-03-19 23:27:32 +0100 | [diff] [blame] | 238 | int cmp = memcmp(a->buf, b->buf, len); |
| 239 | if (cmp) |
| 240 | return cmp; |
| 241 | return a->len < b->len ? -1: a->len != b->len; |
Pierre Habouzit | 45f66f6 | 2007-09-24 11:25:03 +0200 | [diff] [blame] | 242 | } |
| 243 | |
Pierre Habouzit | 917c9a7 | 2007-09-15 15:56:50 +0200 | [diff] [blame] | 244 | void strbuf_splice(struct strbuf *sb, size_t pos, size_t len, |
| 245 | const void *data, size_t dlen) |
| 246 | { |
Jonathan Nieder | 1368f65 | 2010-10-10 21:59:26 -0500 | [diff] [blame] | 247 | if (unsigned_add_overflows(pos, len)) |
Pierre Habouzit | 917c9a7 | 2007-09-15 15:56:50 +0200 | [diff] [blame] | 248 | die("you want to use way too much memory"); |
| 249 | if (pos > sb->len) |
| 250 | die("`pos' is too far after the end of the buffer"); |
| 251 | if (pos + len > sb->len) |
| 252 | die("`pos + len' is too far after the end of the buffer"); |
| 253 | |
| 254 | if (dlen >= len) |
| 255 | strbuf_grow(sb, dlen - len); |
| 256 | memmove(sb->buf + pos + dlen, |
| 257 | sb->buf + pos + len, |
| 258 | sb->len - pos - len); |
| 259 | memcpy(sb->buf + pos, data, dlen); |
| 260 | strbuf_setlen(sb, sb->len + dlen - len); |
| 261 | } |
| 262 | |
Pierre Habouzit | c76689d | 2007-09-20 00:42:12 +0200 | [diff] [blame] | 263 | void strbuf_insert(struct strbuf *sb, size_t pos, const void *data, size_t len) |
| 264 | { |
| 265 | strbuf_splice(sb, pos, 0, data, len); |
| 266 | } |
| 267 | |
Paul-Sebastian Ungureanu | 5ef264d | 2019-02-25 23:16:07 +0000 | [diff] [blame] | 268 | void strbuf_vinsertf(struct strbuf *sb, size_t pos, const char *fmt, va_list ap) |
| 269 | { |
| 270 | int len, len2; |
| 271 | char save; |
| 272 | va_list cp; |
| 273 | |
| 274 | if (pos > sb->len) |
| 275 | die("`pos' is too far after the end of the buffer"); |
| 276 | va_copy(cp, ap); |
| 277 | len = vsnprintf(sb->buf + sb->len, 0, fmt, cp); |
| 278 | va_end(cp); |
| 279 | if (len < 0) |
René Scharfe | 0283cd5 | 2024-04-21 14:40:28 +0200 | [diff] [blame] | 280 | die(_("unable to format message: %s"), fmt); |
Paul-Sebastian Ungureanu | 5ef264d | 2019-02-25 23:16:07 +0000 | [diff] [blame] | 281 | if (!len) |
| 282 | return; /* nothing to do */ |
| 283 | if (unsigned_add_overflows(sb->len, len)) |
| 284 | die("you want to use way too much memory"); |
| 285 | strbuf_grow(sb, len); |
| 286 | memmove(sb->buf + pos + len, sb->buf + pos, sb->len - pos); |
| 287 | /* vsnprintf() will append a NUL, overwriting one of our characters */ |
| 288 | save = sb->buf[pos + len]; |
| 289 | len2 = vsnprintf(sb->buf + pos, len + 1, fmt, ap); |
| 290 | sb->buf[pos + len] = save; |
| 291 | if (len2 != len) |
| 292 | BUG("your vsnprintf is broken (returns inconsistent lengths)"); |
| 293 | strbuf_setlen(sb, sb->len + len); |
| 294 | } |
| 295 | |
| 296 | void strbuf_insertf(struct strbuf *sb, size_t pos, const char *fmt, ...) |
| 297 | { |
| 298 | va_list ap; |
| 299 | va_start(ap, fmt); |
| 300 | strbuf_vinsertf(sb, pos, fmt, ap); |
| 301 | va_end(ap); |
| 302 | } |
| 303 | |
Pierre Habouzit | c76689d | 2007-09-20 00:42:12 +0200 | [diff] [blame] | 304 | void strbuf_remove(struct strbuf *sb, size_t pos, size_t len) |
| 305 | { |
René Scharfe | a8342a4 | 2016-09-13 18:40:22 +0200 | [diff] [blame] | 306 | strbuf_splice(sb, pos, len, "", 0); |
Pierre Habouzit | c76689d | 2007-09-20 00:42:12 +0200 | [diff] [blame] | 307 | } |
| 308 | |
Pierre Habouzit | 917c9a7 | 2007-09-15 15:56:50 +0200 | [diff] [blame] | 309 | void strbuf_add(struct strbuf *sb, const void *data, size_t len) |
| 310 | { |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 311 | strbuf_grow(sb, len); |
| 312 | memcpy(sb->buf + sb->len, data, len); |
| 313 | strbuf_setlen(sb, sb->len + len); |
| 314 | } |
| 315 | |
Ghanshyam Thakkar | a70f8f1 | 2024-05-29 13:30:29 +0530 | [diff] [blame] | 316 | void strbuf_addstrings(struct strbuf *sb, const char *s, size_t n) |
| 317 | { |
| 318 | size_t len = strlen(s); |
| 319 | |
| 320 | strbuf_grow(sb, st_mult(len, n)); |
| 321 | for (size_t i = 0; i < n; i++) |
| 322 | strbuf_add(sb, s, len); |
| 323 | } |
| 324 | |
René Scharfe | 31471ba | 2016-07-21 18:46:44 +0200 | [diff] [blame] | 325 | void strbuf_addbuf(struct strbuf *sb, const struct strbuf *sb2) |
| 326 | { |
| 327 | strbuf_grow(sb, sb2->len); |
| 328 | memcpy(sb->buf + sb->len, sb2->buf, sb2->len); |
| 329 | strbuf_setlen(sb, sb->len + sb2->len); |
| 330 | } |
| 331 | |
Paul-Sebastian Ungureanu | e71c4a8 | 2019-02-25 23:16:06 +0000 | [diff] [blame] | 332 | const char *strbuf_join_argv(struct strbuf *buf, |
| 333 | int argc, const char **argv, char delim) |
| 334 | { |
| 335 | if (!argc) |
| 336 | return buf->buf; |
| 337 | |
| 338 | strbuf_addstr(buf, *argv); |
| 339 | while (--argc) { |
| 340 | strbuf_addch(buf, delim); |
| 341 | strbuf_addstr(buf, *(++argv)); |
| 342 | } |
| 343 | |
| 344 | return buf->buf; |
| 345 | } |
| 346 | |
René Scharfe | d07235a | 2014-09-07 09:03:32 +0200 | [diff] [blame] | 347 | void strbuf_addchars(struct strbuf *sb, int c, size_t n) |
| 348 | { |
| 349 | strbuf_grow(sb, n); |
| 350 | memset(sb->buf + sb->len, c, n); |
| 351 | strbuf_setlen(sb, sb->len + n); |
| 352 | } |
| 353 | |
Pierre Habouzit | 917c9a7 | 2007-09-15 15:56:50 +0200 | [diff] [blame] | 354 | void strbuf_addf(struct strbuf *sb, const char *fmt, ...) |
| 355 | { |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 356 | va_list ap; |
Jeff King | ebeb609 | 2011-02-25 23:08:53 -0600 | [diff] [blame] | 357 | va_start(ap, fmt); |
| 358 | strbuf_vaddf(sb, fmt, ap); |
| 359 | va_end(ap); |
| 360 | } |
| 361 | |
Junio C Hamano | eff80a9 | 2013-01-16 20:18:48 +0100 | [diff] [blame] | 362 | static void add_lines(struct strbuf *out, |
Jeff King | db7f930 | 2024-03-12 05:17:10 -0400 | [diff] [blame] | 363 | const char *prefix, |
| 364 | const char *buf, size_t size, |
| 365 | int space_after_prefix) |
Junio C Hamano | eff80a9 | 2013-01-16 20:18:48 +0100 | [diff] [blame] | 366 | { |
| 367 | while (size) { |
Junio C Hamano | eff80a9 | 2013-01-16 20:18:48 +0100 | [diff] [blame] | 368 | const char *next = memchr(buf, '\n', size); |
| 369 | next = next ? (next + 1) : (buf + size); |
| 370 | |
Junio C Hamano | eff80a9 | 2013-01-16 20:18:48 +0100 | [diff] [blame] | 371 | strbuf_addstr(out, prefix); |
Jeff King | db7f930 | 2024-03-12 05:17:10 -0400 | [diff] [blame] | 372 | if (space_after_prefix && buf[0] != '\n' && buf[0] != '\t') |
| 373 | strbuf_addch(out, ' '); |
Junio C Hamano | eff80a9 | 2013-01-16 20:18:48 +0100 | [diff] [blame] | 374 | strbuf_add(out, buf, next - buf); |
| 375 | size -= next - buf; |
| 376 | buf = next; |
| 377 | } |
| 378 | strbuf_complete_line(out); |
| 379 | } |
| 380 | |
Calvin Wan | 787cb8a | 2023-06-06 19:48:43 +0000 | [diff] [blame] | 381 | void strbuf_add_commented_lines(struct strbuf *out, const char *buf, |
Jeff King | a1bb146 | 2024-03-12 05:17:32 -0400 | [diff] [blame] | 382 | size_t size, const char *comment_prefix) |
Junio C Hamano | eff80a9 | 2013-01-16 20:18:48 +0100 | [diff] [blame] | 383 | { |
Jeff King | a1bb146 | 2024-03-12 05:17:32 -0400 | [diff] [blame] | 384 | add_lines(out, comment_prefix, buf, size, 1); |
Junio C Hamano | eff80a9 | 2013-01-16 20:18:48 +0100 | [diff] [blame] | 385 | } |
| 386 | |
Jeff King | 3a35d96 | 2024-03-12 05:17:29 -0400 | [diff] [blame] | 387 | void strbuf_commented_addf(struct strbuf *sb, const char *comment_prefix, |
Calvin Wan | 787cb8a | 2023-06-06 19:48:43 +0000 | [diff] [blame] | 388 | const char *fmt, ...) |
Junio C Hamano | eff80a9 | 2013-01-16 20:18:48 +0100 | [diff] [blame] | 389 | { |
| 390 | va_list params; |
| 391 | struct strbuf buf = STRBUF_INIT; |
| 392 | int incomplete_line = sb->len && sb->buf[sb->len - 1] != '\n'; |
| 393 | |
| 394 | va_start(params, fmt); |
| 395 | strbuf_vaddf(&buf, fmt, params); |
| 396 | va_end(params); |
| 397 | |
Jeff King | a1bb146 | 2024-03-12 05:17:32 -0400 | [diff] [blame] | 398 | strbuf_add_commented_lines(sb, buf.buf, buf.len, comment_prefix); |
Junio C Hamano | eff80a9 | 2013-01-16 20:18:48 +0100 | [diff] [blame] | 399 | if (incomplete_line) |
| 400 | sb->buf[--sb->len] = '\0'; |
| 401 | |
| 402 | strbuf_release(&buf); |
| 403 | } |
| 404 | |
Jeff King | ebeb609 | 2011-02-25 23:08:53 -0600 | [diff] [blame] | 405 | void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap) |
| 406 | { |
| 407 | int len; |
| 408 | va_list cp; |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 409 | |
Shawn O. Pearce | f141bd8 | 2007-11-13 03:22:44 -0500 | [diff] [blame] | 410 | if (!strbuf_avail(sb)) |
| 411 | strbuf_grow(sb, 64); |
Jeff King | ebeb609 | 2011-02-25 23:08:53 -0600 | [diff] [blame] | 412 | va_copy(cp, ap); |
| 413 | len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, cp); |
| 414 | va_end(cp); |
Shawn O. Pearce | f141bd8 | 2007-11-13 03:22:44 -0500 | [diff] [blame] | 415 | if (len < 0) |
René Scharfe | 0283cd5 | 2024-04-21 14:40:28 +0200 | [diff] [blame] | 416 | die(_("unable to format message: %s"), fmt); |
Pierre Habouzit | f1696ee | 2007-09-10 12:35:04 +0200 | [diff] [blame] | 417 | if (len > strbuf_avail(sb)) { |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 418 | strbuf_grow(sb, len); |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 419 | len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap); |
Jeff King | ebeb609 | 2011-02-25 23:08:53 -0600 | [diff] [blame] | 420 | if (len > strbuf_avail(sb)) |
Johannes Schindelin | 033abf9 | 2018-05-02 11:38:39 +0200 | [diff] [blame] | 421 | BUG("your vsnprintf is broken (insatiable)"); |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 422 | } |
| 423 | strbuf_setlen(sb, sb->len + len); |
Junio C Hamano | d1df574 | 2005-04-25 18:26:45 -0700 | [diff] [blame] | 424 | } |
| 425 | |
René Scharfe | 44ccb33 | 2023-06-17 22:41:44 +0200 | [diff] [blame] | 426 | int strbuf_expand_step(struct strbuf *sb, const char **formatp) |
René Scharfe | cde75e5 | 2007-11-09 01:49:42 +0100 | [diff] [blame] | 427 | { |
René Scharfe | 44ccb33 | 2023-06-17 22:41:44 +0200 | [diff] [blame] | 428 | const char *format = *formatp; |
| 429 | const char *percent = strchrnul(format, '%'); |
René Scharfe | cde75e5 | 2007-11-09 01:49:42 +0100 | [diff] [blame] | 430 | |
René Scharfe | 44ccb33 | 2023-06-17 22:41:44 +0200 | [diff] [blame] | 431 | strbuf_add(sb, format, percent - format); |
| 432 | if (!*percent) |
| 433 | return 0; |
| 434 | *formatp = percent + 1; |
| 435 | return 1; |
René Scharfe | cde75e5 | 2007-11-09 01:49:42 +0100 | [diff] [blame] | 436 | } |
| 437 | |
René Scharfe | 4416b86 | 2023-06-17 22:44:00 +0200 | [diff] [blame] | 438 | size_t strbuf_expand_literal(struct strbuf *sb, const char *placeholder) |
Anders Waldenborg | fd2015b | 2019-01-28 22:33:36 +0100 | [diff] [blame] | 439 | { |
| 440 | int ch; |
| 441 | |
| 442 | switch (placeholder[0]) { |
| 443 | case 'n': /* newline */ |
| 444 | strbuf_addch(sb, '\n'); |
| 445 | return 1; |
| 446 | case 'x': |
| 447 | /* %x00 == NUL, %x0a == LF, etc. */ |
| 448 | ch = hex2chr(placeholder + 1); |
| 449 | if (ch < 0) |
| 450 | return 0; |
| 451 | strbuf_addch(sb, ch); |
| 452 | return 3; |
| 453 | } |
| 454 | return 0; |
| 455 | } |
| 456 | |
René Scharfe | e36091a | 2024-03-24 12:19:40 +0100 | [diff] [blame] | 457 | void strbuf_expand_bad_format(const char *format, const char *command) |
| 458 | { |
| 459 | const char *end; |
| 460 | |
| 461 | if (*format != '(') |
| 462 | /* TRANSLATORS: The first %s is a command like "ls-tree". */ |
| 463 | die(_("bad %s format: element '%s' does not start with '('"), |
| 464 | command, format); |
| 465 | |
| 466 | end = strchr(format + 1, ')'); |
| 467 | if (!end) |
| 468 | /* TRANSLATORS: The first %s is a command like "ls-tree". */ |
| 469 | die(_("bad %s format: element '%s' does not end in ')'"), |
| 470 | command, format); |
| 471 | |
| 472 | /* TRANSLATORS: %s is a command like "ls-tree". */ |
| 473 | die(_("bad %s format: %%%.*s"), |
| 474 | command, (int)(end - format + 1), format); |
| 475 | } |
| 476 | |
Jeff King | 361df5d | 2010-01-13 12:36:42 -0500 | [diff] [blame] | 477 | void strbuf_addbuf_percentquote(struct strbuf *dst, const struct strbuf *src) |
| 478 | { |
Jeff King | 26114c0 | 2018-07-24 06:51:08 -0400 | [diff] [blame] | 479 | size_t i, len = src->len; |
Jeff King | 361df5d | 2010-01-13 12:36:42 -0500 | [diff] [blame] | 480 | |
| 481 | for (i = 0; i < len; i++) { |
| 482 | if (src->buf[i] == '%') |
| 483 | strbuf_addch(dst, '%'); |
| 484 | strbuf_addch(dst, src->buf[i]); |
| 485 | } |
| 486 | } |
| 487 | |
brian m. carlson | b44d011 | 2020-04-27 01:18:08 +0000 | [diff] [blame] | 488 | #define URL_UNSAFE_CHARS " <>\"%{}|\\^`:?#[]@!$&'()*+,;=" |
brian m. carlson | 46fd7b3 | 2020-02-20 02:24:13 +0000 | [diff] [blame] | 489 | |
brian m. carlson | b44d011 | 2020-04-27 01:18:08 +0000 | [diff] [blame] | 490 | void strbuf_add_percentencode(struct strbuf *dst, const char *src, int flags) |
brian m. carlson | 46fd7b3 | 2020-02-20 02:24:13 +0000 | [diff] [blame] | 491 | { |
| 492 | size_t i, len = strlen(src); |
| 493 | |
| 494 | for (i = 0; i < len; i++) { |
| 495 | unsigned char ch = src[i]; |
brian m. carlson | b44d011 | 2020-04-27 01:18:08 +0000 | [diff] [blame] | 496 | if (ch <= 0x1F || ch >= 0x7F || |
| 497 | (ch == '/' && (flags & STRBUF_ENCODE_SLASH)) || |
| 498 | strchr(URL_UNSAFE_CHARS, ch)) |
brian m. carlson | 46fd7b3 | 2020-02-20 02:24:13 +0000 | [diff] [blame] | 499 | strbuf_addf(dst, "%%%02X", (unsigned char)ch); |
| 500 | else |
| 501 | strbuf_addch(dst, ch); |
| 502 | } |
| 503 | } |
| 504 | |
Pierre Habouzit | 917c9a7 | 2007-09-15 15:56:50 +0200 | [diff] [blame] | 505 | size_t strbuf_fread(struct strbuf *sb, size_t size, FILE *f) |
| 506 | { |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 507 | size_t res; |
René Scharfe | 2fc6470 | 2009-01-06 21:41:14 +0100 | [diff] [blame] | 508 | size_t oldalloc = sb->alloc; |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 509 | |
| 510 | strbuf_grow(sb, size); |
| 511 | res = fread(sb->buf + sb->len, 1, size, f); |
René Scharfe | 2fc6470 | 2009-01-06 21:41:14 +0100 | [diff] [blame] | 512 | if (res > 0) |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 513 | strbuf_setlen(sb, sb->len + res); |
Roel Kluin | 6651c3f | 2009-06-22 18:42:33 +0200 | [diff] [blame] | 514 | else if (oldalloc == 0) |
René Scharfe | 2fc6470 | 2009-01-06 21:41:14 +0100 | [diff] [blame] | 515 | strbuf_release(sb); |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 516 | return res; |
| 517 | } |
| 518 | |
Pierre Habouzit | f1696ee | 2007-09-10 12:35:04 +0200 | [diff] [blame] | 519 | ssize_t strbuf_read(struct strbuf *sb, int fd, size_t hint) |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 520 | { |
| 521 | size_t oldlen = sb->len; |
René Scharfe | 2fc6470 | 2009-01-06 21:41:14 +0100 | [diff] [blame] | 522 | size_t oldalloc = sb->alloc; |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 523 | |
Pierre Habouzit | f1696ee | 2007-09-10 12:35:04 +0200 | [diff] [blame] | 524 | strbuf_grow(sb, hint ? hint : 8192); |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 525 | for (;;) { |
Jim Hill | 3ebbd00 | 2015-05-31 11:16:45 -0700 | [diff] [blame] | 526 | ssize_t want = sb->alloc - sb->len - 1; |
| 527 | ssize_t got = read_in_full(fd, sb->buf + sb->len, want); |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 528 | |
Jim Hill | 3ebbd00 | 2015-05-31 11:16:45 -0700 | [diff] [blame] | 529 | if (got < 0) { |
René Scharfe | 2fc6470 | 2009-01-06 21:41:14 +0100 | [diff] [blame] | 530 | if (oldalloc == 0) |
| 531 | strbuf_release(sb); |
| 532 | else |
| 533 | strbuf_setlen(sb, oldlen); |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 534 | return -1; |
| 535 | } |
Jim Hill | 3ebbd00 | 2015-05-31 11:16:45 -0700 | [diff] [blame] | 536 | sb->len += got; |
| 537 | if (got < want) |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 538 | break; |
Pierre Habouzit | f1696ee | 2007-09-10 12:35:04 +0200 | [diff] [blame] | 539 | strbuf_grow(sb, 8192); |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 540 | } |
| 541 | |
| 542 | sb->buf[sb->len] = '\0'; |
| 543 | return sb->len - oldlen; |
Junio C Hamano | d1df574 | 2005-04-25 18:26:45 -0700 | [diff] [blame] | 544 | } |
| 545 | |
Stefan Beller | b4e04fb | 2015-12-15 16:04:08 -0800 | [diff] [blame] | 546 | ssize_t strbuf_read_once(struct strbuf *sb, int fd, size_t hint) |
| 547 | { |
René Scharfe | c3ff8f6 | 2017-12-07 21:51:26 +0100 | [diff] [blame] | 548 | size_t oldalloc = sb->alloc; |
Stefan Beller | b4e04fb | 2015-12-15 16:04:08 -0800 | [diff] [blame] | 549 | ssize_t cnt; |
| 550 | |
| 551 | strbuf_grow(sb, hint ? hint : 8192); |
| 552 | cnt = xread(fd, sb->buf + sb->len, sb->alloc - sb->len - 1); |
| 553 | if (cnt > 0) |
| 554 | strbuf_setlen(sb, sb->len + cnt); |
René Scharfe | c3ff8f6 | 2017-12-07 21:51:26 +0100 | [diff] [blame] | 555 | else if (oldalloc == 0) |
| 556 | strbuf_release(sb); |
Stefan Beller | b4e04fb | 2015-12-15 16:04:08 -0800 | [diff] [blame] | 557 | return cnt; |
| 558 | } |
| 559 | |
Stefan Beller | 2dac9b5 | 2016-02-29 18:07:15 -0800 | [diff] [blame] | 560 | ssize_t strbuf_write(struct strbuf *sb, FILE *f) |
| 561 | { |
| 562 | return sb->len ? fwrite(sb->buf, 1, sb->len, f) : 0; |
| 563 | } |
| 564 | |
Linus Torvalds | b11b7e1 | 2008-12-17 09:36:40 -0800 | [diff] [blame] | 565 | #define STRBUF_MAXLINK (2*PATH_MAX) |
| 566 | |
| 567 | int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint) |
| 568 | { |
René Scharfe | 2fc6470 | 2009-01-06 21:41:14 +0100 | [diff] [blame] | 569 | size_t oldalloc = sb->alloc; |
| 570 | |
Linus Torvalds | b11b7e1 | 2008-12-17 09:36:40 -0800 | [diff] [blame] | 571 | if (hint < 32) |
| 572 | hint = 32; |
| 573 | |
| 574 | while (hint < STRBUF_MAXLINK) { |
Jeff King | f3e76ed | 2018-07-24 06:51:25 -0400 | [diff] [blame] | 575 | ssize_t len; |
Linus Torvalds | b11b7e1 | 2008-12-17 09:36:40 -0800 | [diff] [blame] | 576 | |
| 577 | strbuf_grow(sb, hint); |
| 578 | len = readlink(path, sb->buf, hint); |
| 579 | if (len < 0) { |
| 580 | if (errno != ERANGE) |
| 581 | break; |
| 582 | } else if (len < hint) { |
| 583 | strbuf_setlen(sb, len); |
| 584 | return 0; |
| 585 | } |
| 586 | |
| 587 | /* .. the buffer was too small - try again */ |
| 588 | hint *= 2; |
| 589 | } |
René Scharfe | 2fc6470 | 2009-01-06 21:41:14 +0100 | [diff] [blame] | 590 | if (oldalloc == 0) |
| 591 | strbuf_release(sb); |
Linus Torvalds | b11b7e1 | 2008-12-17 09:36:40 -0800 | [diff] [blame] | 592 | return -1; |
| 593 | } |
| 594 | |
René Scharfe | f22a76e | 2014-07-28 20:24:29 +0200 | [diff] [blame] | 595 | int strbuf_getcwd(struct strbuf *sb) |
| 596 | { |
| 597 | size_t oldalloc = sb->alloc; |
| 598 | size_t guessed_len = 128; |
| 599 | |
| 600 | for (;; guessed_len *= 2) { |
| 601 | strbuf_grow(sb, guessed_len); |
| 602 | if (getcwd(sb->buf, sb->alloc)) { |
| 603 | strbuf_setlen(sb, strlen(sb->buf)); |
| 604 | return 0; |
| 605 | } |
René Scharfe | a54e938 | 2017-03-26 15:43:50 +0200 | [diff] [blame] | 606 | |
| 607 | /* |
| 608 | * If getcwd(3) is implemented as a syscall that falls |
| 609 | * back to a regular lookup using readdir(3) etc. then |
| 610 | * we may be able to avoid EACCES by providing enough |
| 611 | * space to the syscall as it's not necessarily bound |
| 612 | * to the same restrictions as the fallback. |
| 613 | */ |
| 614 | if (errno == EACCES && guessed_len < PATH_MAX) |
| 615 | continue; |
| 616 | |
René Scharfe | f22a76e | 2014-07-28 20:24:29 +0200 | [diff] [blame] | 617 | if (errno != ERANGE) |
| 618 | break; |
| 619 | } |
| 620 | if (oldalloc == 0) |
| 621 | strbuf_release(sb); |
| 622 | else |
| 623 | strbuf_reset(sb); |
| 624 | return -1; |
| 625 | } |
| 626 | |
Jeff King | 0cc30e0 | 2015-04-16 05:01:38 -0400 | [diff] [blame] | 627 | #ifdef HAVE_GETDELIM |
| 628 | int strbuf_getwholeline(struct strbuf *sb, FILE *fp, int term) |
| 629 | { |
| 630 | ssize_t r; |
| 631 | |
| 632 | if (feof(fp)) |
| 633 | return EOF; |
| 634 | |
| 635 | strbuf_reset(sb); |
| 636 | |
| 637 | /* Translate slopbuf to NULL, as we cannot call realloc on it */ |
| 638 | if (!sb->alloc) |
| 639 | sb->buf = NULL; |
René Scharfe | 642956c | 2017-08-10 22:56:40 +0200 | [diff] [blame] | 640 | errno = 0; |
Jeff King | 0cc30e0 | 2015-04-16 05:01:38 -0400 | [diff] [blame] | 641 | r = getdelim(&sb->buf, &sb->alloc, term, fp); |
| 642 | |
| 643 | if (r > 0) { |
| 644 | sb->len = r; |
| 645 | return 0; |
| 646 | } |
| 647 | assert(r == -1); |
| 648 | |
| 649 | /* |
| 650 | * Normally we would have called xrealloc, which will try to free |
| 651 | * memory and recover. But we have no way to tell getdelim() to do so. |
| 652 | * Worse, we cannot try to recover ENOMEM ourselves, because we have |
| 653 | * no idea how many bytes were read by getdelim. |
| 654 | * |
| 655 | * Dying here is reasonable. It mirrors what xrealloc would do on |
| 656 | * catastrophic memory failure. We skip the opportunity to free pack |
| 657 | * memory and retry, but that's unlikely to help for a malloc small |
| 658 | * enough to hold a single line of input, anyway. |
| 659 | */ |
| 660 | if (errno == ENOMEM) |
| 661 | die("Out of memory, getdelim failed"); |
| 662 | |
Jeff King | b709043 | 2016-03-05 13:43:30 -0500 | [diff] [blame] | 663 | /* |
| 664 | * Restore strbuf invariants; if getdelim left us with a NULL pointer, |
| 665 | * we can just re-init, but otherwise we should make sure that our |
| 666 | * length is empty, and that the result is NUL-terminated. |
| 667 | */ |
Jeff King | 0cc30e0 | 2015-04-16 05:01:38 -0400 | [diff] [blame] | 668 | if (!sb->buf) |
| 669 | strbuf_init(sb, 0); |
Jeff King | b709043 | 2016-03-05 13:43:30 -0500 | [diff] [blame] | 670 | else |
| 671 | strbuf_reset(sb); |
Jeff King | 0cc30e0 | 2015-04-16 05:01:38 -0400 | [diff] [blame] | 672 | return EOF; |
| 673 | } |
| 674 | #else |
Brandon Casey | c7e4f0d | 2009-08-04 22:31:56 -0500 | [diff] [blame] | 675 | int strbuf_getwholeline(struct strbuf *sb, FILE *fp, int term) |
Pierre Habouzit | 917c9a7 | 2007-09-15 15:56:50 +0200 | [diff] [blame] | 676 | { |
Junio C Hamano | d1df574 | 2005-04-25 18:26:45 -0700 | [diff] [blame] | 677 | int ch; |
Pierre Habouzit | e6c019d | 2007-09-17 11:19:04 +0200 | [diff] [blame] | 678 | |
Pierre Habouzit | e6c019d | 2007-09-17 11:19:04 +0200 | [diff] [blame] | 679 | if (feof(fp)) |
| 680 | return EOF; |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 681 | |
| 682 | strbuf_reset(sb); |
Jeff King | 82912d1 | 2015-04-16 04:49:06 -0400 | [diff] [blame] | 683 | flockfile(fp); |
| 684 | while ((ch = getc_unlocked(fp)) != EOF) { |
Jeff King | f80c153 | 2015-04-16 04:58:54 -0400 | [diff] [blame] | 685 | if (!strbuf_avail(sb)) |
| 686 | strbuf_grow(sb, 1); |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 687 | sb->buf[sb->len++] = ch; |
Brandon Casey | c7e4f0d | 2009-08-04 22:31:56 -0500 | [diff] [blame] | 688 | if (ch == term) |
| 689 | break; |
Junio C Hamano | d1df574 | 2005-04-25 18:26:45 -0700 | [diff] [blame] | 690 | } |
Jeff King | 82912d1 | 2015-04-16 04:49:06 -0400 | [diff] [blame] | 691 | funlockfile(fp); |
Pierre Habouzit | e6c019d | 2007-09-17 11:19:04 +0200 | [diff] [blame] | 692 | if (ch == EOF && sb->len == 0) |
| 693 | return EOF; |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 694 | |
Pierre Habouzit | b449f4c | 2007-09-06 13:20:05 +0200 | [diff] [blame] | 695 | sb->buf[sb->len] = '\0'; |
Pierre Habouzit | e6c019d | 2007-09-17 11:19:04 +0200 | [diff] [blame] | 696 | return 0; |
Junio C Hamano | d1df574 | 2005-04-25 18:26:45 -0700 | [diff] [blame] | 697 | } |
Jeff King | 0cc30e0 | 2015-04-16 05:01:38 -0400 | [diff] [blame] | 698 | #endif |
Kristian Høgsberg | a9390b9 | 2007-09-17 20:06:46 -0400 | [diff] [blame] | 699 | |
Patrick Steinhardt | bd021f3 | 2020-03-30 15:46:27 +0200 | [diff] [blame] | 700 | int strbuf_appendwholeline(struct strbuf *sb, FILE *fp, int term) |
| 701 | { |
| 702 | struct strbuf line = STRBUF_INIT; |
Patrick Steinhardt | 94e2aa5 | 2024-05-27 13:46:01 +0200 | [diff] [blame] | 703 | if (strbuf_getwholeline(&line, fp, term)) { |
| 704 | strbuf_release(&line); |
Patrick Steinhardt | bd021f3 | 2020-03-30 15:46:27 +0200 | [diff] [blame] | 705 | return EOF; |
Patrick Steinhardt | 94e2aa5 | 2024-05-27 13:46:01 +0200 | [diff] [blame] | 706 | } |
Patrick Steinhardt | bd021f3 | 2020-03-30 15:46:27 +0200 | [diff] [blame] | 707 | strbuf_addbuf(sb, &line); |
| 708 | strbuf_release(&line); |
| 709 | return 0; |
| 710 | } |
| 711 | |
Junio C Hamano | 1a0c8df | 2016-01-13 18:32:23 -0800 | [diff] [blame] | 712 | static int strbuf_getdelim(struct strbuf *sb, FILE *fp, int term) |
Brandon Casey | c7e4f0d | 2009-08-04 22:31:56 -0500 | [diff] [blame] | 713 | { |
| 714 | if (strbuf_getwholeline(sb, fp, term)) |
| 715 | return EOF; |
Junio C Hamano | dce80bd | 2016-01-13 15:10:45 -0800 | [diff] [blame] | 716 | if (sb->buf[sb->len - 1] == term) |
| 717 | strbuf_setlen(sb, sb->len - 1); |
Brandon Casey | c7e4f0d | 2009-08-04 22:31:56 -0500 | [diff] [blame] | 718 | return 0; |
| 719 | } |
| 720 | |
Patrick Steinhardt | af35e56 | 2023-06-06 07:19:37 +0200 | [diff] [blame] | 721 | int strbuf_getdelim_strip_crlf(struct strbuf *sb, FILE *fp, int term) |
Junio C Hamano | c8aa9fd | 2015-10-28 13:17:29 -0700 | [diff] [blame] | 722 | { |
Patrick Steinhardt | af35e56 | 2023-06-06 07:19:37 +0200 | [diff] [blame] | 723 | if (strbuf_getwholeline(sb, fp, term)) |
Junio C Hamano | c8aa9fd | 2015-10-28 13:17:29 -0700 | [diff] [blame] | 724 | return EOF; |
Patrick Steinhardt | af35e56 | 2023-06-06 07:19:37 +0200 | [diff] [blame] | 725 | if (term == '\n' && sb->buf[sb->len - 1] == '\n') { |
Junio C Hamano | c8aa9fd | 2015-10-28 13:17:29 -0700 | [diff] [blame] | 726 | strbuf_setlen(sb, sb->len - 1); |
| 727 | if (sb->len && sb->buf[sb->len - 1] == '\r') |
| 728 | strbuf_setlen(sb, sb->len - 1); |
| 729 | } |
| 730 | return 0; |
| 731 | } |
| 732 | |
Patrick Steinhardt | af35e56 | 2023-06-06 07:19:37 +0200 | [diff] [blame] | 733 | int strbuf_getline(struct strbuf *sb, FILE *fp) |
| 734 | { |
| 735 | return strbuf_getdelim_strip_crlf(sb, fp, '\n'); |
| 736 | } |
| 737 | |
Junio C Hamano | 8f309ae | 2016-01-13 15:31:17 -0800 | [diff] [blame] | 738 | int strbuf_getline_lf(struct strbuf *sb, FILE *fp) |
| 739 | { |
Junio C Hamano | 1a0c8df | 2016-01-13 18:32:23 -0800 | [diff] [blame] | 740 | return strbuf_getdelim(sb, fp, '\n'); |
Junio C Hamano | 8f309ae | 2016-01-13 15:31:17 -0800 | [diff] [blame] | 741 | } |
| 742 | |
| 743 | int strbuf_getline_nul(struct strbuf *sb, FILE *fp) |
| 744 | { |
Junio C Hamano | 1a0c8df | 2016-01-13 18:32:23 -0800 | [diff] [blame] | 745 | return strbuf_getdelim(sb, fp, '\0'); |
Junio C Hamano | 8f309ae | 2016-01-13 15:31:17 -0800 | [diff] [blame] | 746 | } |
| 747 | |
Thomas Rast | 5e8617f | 2012-02-22 20:34:22 +0100 | [diff] [blame] | 748 | int strbuf_getwholeline_fd(struct strbuf *sb, int fd, int term) |
| 749 | { |
| 750 | strbuf_reset(sb); |
| 751 | |
| 752 | while (1) { |
| 753 | char ch; |
| 754 | ssize_t len = xread(fd, &ch, 1); |
| 755 | if (len <= 0) |
| 756 | return EOF; |
| 757 | strbuf_addch(sb, ch); |
| 758 | if (ch == term) |
| 759 | break; |
| 760 | } |
| 761 | return 0; |
| 762 | } |
| 763 | |
Michael Haggerty | 6c8afe4 | 2015-07-03 15:59:32 +0200 | [diff] [blame] | 764 | ssize_t strbuf_read_file(struct strbuf *sb, const char *path, size_t hint) |
Kristian Høgsberg | a9390b9 | 2007-09-17 20:06:46 -0400 | [diff] [blame] | 765 | { |
Michael Haggerty | 6c8afe4 | 2015-07-03 15:59:32 +0200 | [diff] [blame] | 766 | int fd; |
| 767 | ssize_t len; |
Jeff King | 79f0ba1 | 2018-02-23 02:00:54 -0500 | [diff] [blame] | 768 | int saved_errno; |
Kristian Høgsberg | a9390b9 | 2007-09-17 20:06:46 -0400 | [diff] [blame] | 769 | |
| 770 | fd = open(path, O_RDONLY); |
| 771 | if (fd < 0) |
| 772 | return -1; |
Pierre Habouzit | 387e7e1 | 2007-09-27 15:25:55 +0200 | [diff] [blame] | 773 | len = strbuf_read(sb, fd, hint); |
Jeff King | 79f0ba1 | 2018-02-23 02:00:54 -0500 | [diff] [blame] | 774 | saved_errno = errno; |
Kristian Høgsberg | a9390b9 | 2007-09-17 20:06:46 -0400 | [diff] [blame] | 775 | close(fd); |
Jeff King | 79f0ba1 | 2018-02-23 02:00:54 -0500 | [diff] [blame] | 776 | if (len < 0) { |
| 777 | errno = saved_errno; |
Kristian Høgsberg | a9390b9 | 2007-09-17 20:06:46 -0400 | [diff] [blame] | 778 | return -1; |
Jeff King | 79f0ba1 | 2018-02-23 02:00:54 -0500 | [diff] [blame] | 779 | } |
Kristian Høgsberg | a9390b9 | 2007-09-17 20:06:46 -0400 | [diff] [blame] | 780 | |
| 781 | return len; |
| 782 | } |
Junio C Hamano | 895680f | 2011-11-04 21:06:30 -0700 | [diff] [blame] | 783 | |
| 784 | void strbuf_add_lines(struct strbuf *out, const char *prefix, |
| 785 | const char *buf, size_t size) |
| 786 | { |
Jeff King | db7f930 | 2024-03-12 05:17:10 -0400 | [diff] [blame] | 787 | add_lines(out, prefix, buf, size, 0); |
Junio C Hamano | 895680f | 2011-11-04 21:06:30 -0700 | [diff] [blame] | 788 | } |
Junio C Hamano | 367d20e | 2011-12-19 16:05:16 -0800 | [diff] [blame] | 789 | |
Michael Haggerty | 5963c03 | 2012-11-25 12:08:34 +0100 | [diff] [blame] | 790 | void strbuf_addstr_xml_quoted(struct strbuf *buf, const char *s) |
| 791 | { |
| 792 | while (*s) { |
| 793 | size_t len = strcspn(s, "\"<>&"); |
| 794 | strbuf_add(buf, s, len); |
| 795 | s += len; |
| 796 | switch (*s) { |
| 797 | case '"': |
| 798 | strbuf_addstr(buf, """); |
| 799 | break; |
| 800 | case '<': |
| 801 | strbuf_addstr(buf, "<"); |
| 802 | break; |
| 803 | case '>': |
| 804 | strbuf_addstr(buf, ">"); |
| 805 | break; |
| 806 | case '&': |
| 807 | strbuf_addstr(buf, "&"); |
| 808 | break; |
| 809 | case 0: |
| 810 | return; |
| 811 | } |
| 812 | s++; |
| 813 | } |
| 814 | } |
| 815 | |
Junio C Hamano | ea03a8e | 2012-09-15 22:43:15 -0700 | [diff] [blame] | 816 | static void strbuf_add_urlencode(struct strbuf *sb, const char *s, size_t len, |
Matthew DeVore | c269495 | 2019-06-27 15:54:11 -0700 | [diff] [blame] | 817 | char_predicate allow_unencoded_fn) |
Jeff King | c505116 | 2011-12-10 05:34:20 -0500 | [diff] [blame] | 818 | { |
| 819 | strbuf_grow(sb, len); |
| 820 | while (len--) { |
| 821 | char ch = *s++; |
Matthew DeVore | c269495 | 2019-06-27 15:54:11 -0700 | [diff] [blame] | 822 | if (allow_unencoded_fn(ch)) |
Jeff King | c505116 | 2011-12-10 05:34:20 -0500 | [diff] [blame] | 823 | strbuf_addch(sb, ch); |
| 824 | else |
Julien Dusser | 4c267f2 | 2017-12-22 18:24:37 +0100 | [diff] [blame] | 825 | strbuf_addf(sb, "%%%02x", (unsigned char)ch); |
Jeff King | c505116 | 2011-12-10 05:34:20 -0500 | [diff] [blame] | 826 | } |
| 827 | } |
| 828 | |
| 829 | void strbuf_addstr_urlencode(struct strbuf *sb, const char *s, |
Matthew DeVore | c269495 | 2019-06-27 15:54:11 -0700 | [diff] [blame] | 830 | char_predicate allow_unencoded_fn) |
Jeff King | c505116 | 2011-12-10 05:34:20 -0500 | [diff] [blame] | 831 | { |
Matthew DeVore | c269495 | 2019-06-27 15:54:11 -0700 | [diff] [blame] | 832 | strbuf_add_urlencode(sb, s, strlen(s), allow_unencoded_fn); |
Jeff King | c505116 | 2011-12-10 05:34:20 -0500 | [diff] [blame] | 833 | } |
Nguyễn Thái Ngọc Duy | 9a0a30a | 2012-04-23 19:30:22 +0700 | [diff] [blame] | 834 | |
Dimitriy Ryazantcev | 8f354a1 | 2019-07-02 21:22:48 +0300 | [diff] [blame] | 835 | static void strbuf_humanise(struct strbuf *buf, off_t bytes, |
| 836 | int humanise_rate) |
Antoine Pelisse | 079b546 | 2013-04-10 21:03:23 +0200 | [diff] [blame] | 837 | { |
| 838 | if (bytes > 1 << 30) { |
Dimitriy Ryazantcev | 8f354a1 | 2019-07-02 21:22:48 +0300 | [diff] [blame] | 839 | strbuf_addf(buf, |
| 840 | humanise_rate == 0 ? |
| 841 | /* TRANSLATORS: IEC 80000-13:2008 gibibyte */ |
| 842 | _("%u.%2.2u GiB") : |
| 843 | /* TRANSLATORS: IEC 80000-13:2008 gibibyte/second */ |
| 844 | _("%u.%2.2u GiB/s"), |
Jeff King | 7726d36 | 2018-07-24 06:52:29 -0400 | [diff] [blame] | 845 | (unsigned)(bytes >> 30), |
| 846 | (unsigned)(bytes & ((1 << 30) - 1)) / 10737419); |
Antoine Pelisse | 079b546 | 2013-04-10 21:03:23 +0200 | [diff] [blame] | 847 | } else if (bytes > 1 << 20) { |
Jeff King | 7726d36 | 2018-07-24 06:52:29 -0400 | [diff] [blame] | 848 | unsigned x = bytes + 5243; /* for rounding */ |
Dimitriy Ryazantcev | 8f354a1 | 2019-07-02 21:22:48 +0300 | [diff] [blame] | 849 | strbuf_addf(buf, |
| 850 | humanise_rate == 0 ? |
| 851 | /* TRANSLATORS: IEC 80000-13:2008 mebibyte */ |
| 852 | _("%u.%2.2u MiB") : |
| 853 | /* TRANSLATORS: IEC 80000-13:2008 mebibyte/second */ |
| 854 | _("%u.%2.2u MiB/s"), |
Antoine Pelisse | 079b546 | 2013-04-10 21:03:23 +0200 | [diff] [blame] | 855 | x >> 20, ((x & ((1 << 20) - 1)) * 100) >> 20); |
| 856 | } else if (bytes > 1 << 10) { |
Jeff King | 7726d36 | 2018-07-24 06:52:29 -0400 | [diff] [blame] | 857 | unsigned x = bytes + 5; /* for rounding */ |
Dimitriy Ryazantcev | 8f354a1 | 2019-07-02 21:22:48 +0300 | [diff] [blame] | 858 | strbuf_addf(buf, |
| 859 | humanise_rate == 0 ? |
| 860 | /* TRANSLATORS: IEC 80000-13:2008 kibibyte */ |
| 861 | _("%u.%2.2u KiB") : |
| 862 | /* TRANSLATORS: IEC 80000-13:2008 kibibyte/second */ |
| 863 | _("%u.%2.2u KiB/s"), |
Antoine Pelisse | 079b546 | 2013-04-10 21:03:23 +0200 | [diff] [blame] | 864 | x >> 10, ((x & ((1 << 10) - 1)) * 100) >> 10); |
| 865 | } else { |
Dimitriy Ryazantcev | 8f354a1 | 2019-07-02 21:22:48 +0300 | [diff] [blame] | 866 | strbuf_addf(buf, |
| 867 | humanise_rate == 0 ? |
| 868 | /* TRANSLATORS: IEC 80000-13:2008 byte */ |
Ævar Arnfjörð Bjarmason | 6f69325 | 2022-03-07 16:27:07 +0100 | [diff] [blame] | 869 | Q_("%u byte", "%u bytes", bytes) : |
Dimitriy Ryazantcev | 8f354a1 | 2019-07-02 21:22:48 +0300 | [diff] [blame] | 870 | /* TRANSLATORS: IEC 80000-13:2008 byte/second */ |
Ævar Arnfjörð Bjarmason | 6f69325 | 2022-03-07 16:27:07 +0100 | [diff] [blame] | 871 | Q_("%u byte/s", "%u bytes/s", bytes), |
Dimitriy Ryazantcev | 8f354a1 | 2019-07-02 21:22:48 +0300 | [diff] [blame] | 872 | (unsigned)bytes); |
Antoine Pelisse | 079b546 | 2013-04-10 21:03:23 +0200 | [diff] [blame] | 873 | } |
| 874 | } |
| 875 | |
Dimitriy Ryazantcev | 8f354a1 | 2019-07-02 21:22:48 +0300 | [diff] [blame] | 876 | void strbuf_humanise_bytes(struct strbuf *buf, off_t bytes) |
| 877 | { |
| 878 | strbuf_humanise(buf, bytes, 0); |
| 879 | } |
| 880 | |
| 881 | void strbuf_humanise_rate(struct strbuf *buf, off_t bytes) |
| 882 | { |
| 883 | strbuf_humanise(buf, bytes, 1); |
| 884 | } |
| 885 | |
Nguyễn Thái Ngọc Duy | 9a0a30a | 2012-04-23 19:30:22 +0700 | [diff] [blame] | 886 | int printf_ln(const char *fmt, ...) |
| 887 | { |
| 888 | int ret; |
| 889 | va_list ap; |
| 890 | va_start(ap, fmt); |
| 891 | ret = vprintf(fmt, ap); |
| 892 | va_end(ap); |
| 893 | if (ret < 0 || putchar('\n') == EOF) |
| 894 | return -1; |
| 895 | return ret + 1; |
| 896 | } |
| 897 | |
| 898 | int fprintf_ln(FILE *fp, const char *fmt, ...) |
| 899 | { |
| 900 | int ret; |
| 901 | va_list ap; |
| 902 | va_start(ap, fmt); |
| 903 | ret = vfprintf(fp, fmt, ap); |
| 904 | va_end(ap); |
| 905 | if (ret < 0 || putc('\n', fp) == EOF) |
| 906 | return -1; |
| 907 | return ret + 1; |
| 908 | } |
Jeff King | 88d5a6f | 2014-05-22 05:44:09 -0400 | [diff] [blame] | 909 | |
| 910 | char *xstrdup_tolower(const char *string) |
| 911 | { |
| 912 | char *result; |
| 913 | size_t len, i; |
| 914 | |
| 915 | len = strlen(string); |
Jeff King | 3733e69 | 2016-02-22 17:44:28 -0500 | [diff] [blame] | 916 | result = xmallocz(len); |
Jeff King | 88d5a6f | 2014-05-22 05:44:09 -0400 | [diff] [blame] | 917 | for (i = 0; i < len; i++) |
| 918 | result[i] = tolower(string[i]); |
Jeff King | 88d5a6f | 2014-05-22 05:44:09 -0400 | [diff] [blame] | 919 | return result; |
| 920 | } |
Jeff King | 30a0ddb | 2014-06-18 16:01:34 -0400 | [diff] [blame] | 921 | |
Lars Schneider | 13ecb463 | 2018-02-15 16:27:06 +0100 | [diff] [blame] | 922 | char *xstrdup_toupper(const char *string) |
| 923 | { |
| 924 | char *result; |
| 925 | size_t len, i; |
| 926 | |
| 927 | len = strlen(string); |
| 928 | result = xmallocz(len); |
| 929 | for (i = 0; i < len; i++) |
| 930 | result[i] = toupper(string[i]); |
Junio C Hamano | d1df574 | 2005-04-25 18:26:45 -0700 | [diff] [blame] | 931 | return result; |
| 932 | } |
Jeff King | 30a0ddb | 2014-06-18 16:01:34 -0400 | [diff] [blame] | 933 | |
| 934 | char *xstrvfmt(const char *fmt, va_list ap) |
| 935 | { |
| 936 | struct strbuf buf = STRBUF_INIT; |
| 937 | strbuf_vaddf(&buf, fmt, ap); |
| 938 | return strbuf_detach(&buf, NULL); |
| 939 | } |
| 940 | |
| 941 | char *xstrfmt(const char *fmt, ...) |
| 942 | { |
| 943 | va_list ap; |
| 944 | char *ret; |
| 945 | |
| 946 | va_start(ap, fmt); |
| 947 | ret = xstrvfmt(fmt, ap); |
| 948 | va_end(ap); |
| 949 | |
| 950 | return ret; |
| 951 | } |
Jeff King | aa1462c | 2015-06-25 12:55:45 -0400 | [diff] [blame] | 952 | |
René Scharfe | c3fbf81 | 2017-06-15 14:29:53 +0200 | [diff] [blame] | 953 | void strbuf_addftime(struct strbuf *sb, const char *fmt, const struct tm *tm, |
Ævar Arnfjörð Bjarmason | 3b70223 | 2017-07-01 13:15:47 +0000 | [diff] [blame] | 954 | int tz_offset, int suppress_tz_name) |
Jeff King | aa1462c | 2015-06-25 12:55:45 -0400 | [diff] [blame] | 955 | { |
René Scharfe | c3fbf81 | 2017-06-15 14:29:53 +0200 | [diff] [blame] | 956 | struct strbuf munged_fmt = STRBUF_INIT; |
Jeff King | e4f031e | 2015-06-30 09:26:53 -0400 | [diff] [blame] | 957 | size_t hint = 128; |
Jeff King | aa1462c | 2015-06-25 12:55:45 -0400 | [diff] [blame] | 958 | size_t len; |
| 959 | |
Jeff King | e4f031e | 2015-06-30 09:26:53 -0400 | [diff] [blame] | 960 | if (!*fmt) |
| 961 | return; |
| 962 | |
René Scharfe | c3fbf81 | 2017-06-15 14:29:53 +0200 | [diff] [blame] | 963 | /* |
| 964 | * There is no portable way to pass timezone information to |
Jeff King | 9b591b9 | 2021-11-02 07:35:34 -0400 | [diff] [blame] | 965 | * strftime, so we handle %z and %Z here. Likewise '%s', because |
| 966 | * going back to an epoch time requires knowing the zone. |
| 967 | * |
| 968 | * Note that tz_offset is in the "[-+]HHMM" decimal form; this is what |
| 969 | * we want for %z, but the computation for %s has to convert to number |
| 970 | * of seconds. |
René Scharfe | c3fbf81 | 2017-06-15 14:29:53 +0200 | [diff] [blame] | 971 | */ |
René Scharfe | 44ccb33 | 2023-06-17 22:41:44 +0200 | [diff] [blame] | 972 | while (strbuf_expand_step(&munged_fmt, &fmt)) { |
René Scharfe | 945c722 | 2023-07-16 10:52:33 +0200 | [diff] [blame] | 973 | if (skip_prefix(fmt, "%", &fmt)) |
René Scharfe | c3fbf81 | 2017-06-15 14:29:53 +0200 | [diff] [blame] | 974 | strbuf_addstr(&munged_fmt, "%%"); |
René Scharfe | 945c722 | 2023-07-16 10:52:33 +0200 | [diff] [blame] | 975 | else if (skip_prefix(fmt, "s", &fmt)) |
Jeff King | 9b591b9 | 2021-11-02 07:35:34 -0400 | [diff] [blame] | 976 | strbuf_addf(&munged_fmt, "%"PRItime, |
| 977 | (timestamp_t)tm_to_time_t(tm) - |
| 978 | 3600 * (tz_offset / 100) - |
| 979 | 60 * (tz_offset % 100)); |
René Scharfe | 945c722 | 2023-07-16 10:52:33 +0200 | [diff] [blame] | 980 | else if (skip_prefix(fmt, "z", &fmt)) |
René Scharfe | c3fbf81 | 2017-06-15 14:29:53 +0200 | [diff] [blame] | 981 | strbuf_addf(&munged_fmt, "%+05d", tz_offset); |
René Scharfe | 945c722 | 2023-07-16 10:52:33 +0200 | [diff] [blame] | 982 | else if (suppress_tz_name && skip_prefix(fmt, "Z", &fmt)) |
| 983 | ; /* nothing */ |
| 984 | else |
René Scharfe | c3fbf81 | 2017-06-15 14:29:53 +0200 | [diff] [blame] | 985 | strbuf_addch(&munged_fmt, '%'); |
René Scharfe | c3fbf81 | 2017-06-15 14:29:53 +0200 | [diff] [blame] | 986 | } |
| 987 | fmt = munged_fmt.buf; |
| 988 | |
Jeff King | e4f031e | 2015-06-30 09:26:53 -0400 | [diff] [blame] | 989 | strbuf_grow(sb, hint); |
Jeff King | aa1462c | 2015-06-25 12:55:45 -0400 | [diff] [blame] | 990 | len = strftime(sb->buf + sb->len, sb->alloc - sb->len, fmt, tm); |
| 991 | |
| 992 | if (!len) { |
| 993 | /* |
Jeff King | e4f031e | 2015-06-30 09:26:53 -0400 | [diff] [blame] | 994 | * strftime reports "0" if it could not fit the result in the buffer. |
| 995 | * Unfortunately, it also reports "0" if the requested time string |
| 996 | * takes 0 bytes. So our strategy is to munge the format so that the |
| 997 | * output contains at least one character, and then drop the extra |
| 998 | * character before returning. |
Jeff King | aa1462c | 2015-06-25 12:55:45 -0400 | [diff] [blame] | 999 | */ |
René Scharfe | c3fbf81 | 2017-06-15 14:29:53 +0200 | [diff] [blame] | 1000 | strbuf_addch(&munged_fmt, ' '); |
Jeff King | e4f031e | 2015-06-30 09:26:53 -0400 | [diff] [blame] | 1001 | while (!len) { |
| 1002 | hint *= 2; |
| 1003 | strbuf_grow(sb, hint); |
| 1004 | len = strftime(sb->buf + sb->len, sb->alloc - sb->len, |
| 1005 | munged_fmt.buf, tm); |
| 1006 | } |
Jeff King | e4f031e | 2015-06-30 09:26:53 -0400 | [diff] [blame] | 1007 | len--; /* drop munged space */ |
Jeff King | aa1462c | 2015-06-25 12:55:45 -0400 | [diff] [blame] | 1008 | } |
René Scharfe | c3fbf81 | 2017-06-15 14:29:53 +0200 | [diff] [blame] | 1009 | strbuf_release(&munged_fmt); |
Jeff King | e4f031e | 2015-06-30 09:26:53 -0400 | [diff] [blame] | 1010 | strbuf_setlen(sb, sb->len + len); |
Jeff King | aa1462c | 2015-06-25 12:55:45 -0400 | [diff] [blame] | 1011 | } |
Jeff King | af49c6d | 2015-09-24 17:05:45 -0400 | [diff] [blame] | 1012 | |
Tobias Klauser | 63af4a8 | 2015-10-16 17:16:42 +0200 | [diff] [blame] | 1013 | /* |
| 1014 | * Returns the length of a line, without trailing spaces. |
| 1015 | * |
| 1016 | * If the line ends with newline, it will be removed too. |
| 1017 | */ |
| 1018 | static size_t cleanup(char *line, size_t len) |
| 1019 | { |
| 1020 | while (len) { |
| 1021 | unsigned char c = line[len - 1]; |
| 1022 | if (!isspace(c)) |
| 1023 | break; |
| 1024 | len--; |
| 1025 | } |
| 1026 | |
| 1027 | return len; |
| 1028 | } |
| 1029 | |
| 1030 | /* |
| 1031 | * Remove empty lines from the beginning and end |
| 1032 | * and also trailing spaces from every line. |
| 1033 | * |
| 1034 | * Turn multiple consecutive empty lines between paragraphs |
| 1035 | * into just one empty line. |
| 1036 | * |
| 1037 | * If the input has only empty lines and spaces, |
| 1038 | * no output will be produced. |
| 1039 | * |
| 1040 | * If last line does not have a newline at the end, one is added. |
| 1041 | * |
Jeff King | 2982b65 | 2024-03-12 05:17:27 -0400 | [diff] [blame] | 1042 | * Pass a non-NULL comment_prefix to skip every line starting |
Calvin Wan | 787cb8a | 2023-06-06 19:48:43 +0000 | [diff] [blame] | 1043 | * with it. |
Tobias Klauser | 63af4a8 | 2015-10-16 17:16:42 +0200 | [diff] [blame] | 1044 | */ |
Jeff King | 2982b65 | 2024-03-12 05:17:27 -0400 | [diff] [blame] | 1045 | void strbuf_stripspace(struct strbuf *sb, const char *comment_prefix) |
Tobias Klauser | 63af4a8 | 2015-10-16 17:16:42 +0200 | [diff] [blame] | 1046 | { |
Jeff King | 26114c0 | 2018-07-24 06:51:08 -0400 | [diff] [blame] | 1047 | size_t empties = 0; |
Tobias Klauser | 63af4a8 | 2015-10-16 17:16:42 +0200 | [diff] [blame] | 1048 | size_t i, j, len, newlen; |
| 1049 | char *eol; |
| 1050 | |
| 1051 | /* We may have to add a newline. */ |
| 1052 | strbuf_grow(sb, 1); |
| 1053 | |
| 1054 | for (i = j = 0; i < sb->len; i += len, j += newlen) { |
| 1055 | eol = memchr(sb->buf + i, '\n', sb->len - i); |
| 1056 | len = eol ? eol - (sb->buf + i) + 1 : sb->len - i; |
| 1057 | |
Jeff King | 2786d05 | 2024-03-12 05:17:22 -0400 | [diff] [blame] | 1058 | if (comment_prefix && len && |
Jeff King | 2982b65 | 2024-03-12 05:17:27 -0400 | [diff] [blame] | 1059 | starts_with(sb->buf + i, comment_prefix)) { |
Tobias Klauser | 63af4a8 | 2015-10-16 17:16:42 +0200 | [diff] [blame] | 1060 | newlen = 0; |
| 1061 | continue; |
| 1062 | } |
| 1063 | newlen = cleanup(sb->buf + i, len); |
| 1064 | |
| 1065 | /* Not just an empty line? */ |
| 1066 | if (newlen) { |
| 1067 | if (empties > 0 && j > 0) |
| 1068 | sb->buf[j++] = '\n'; |
| 1069 | empties = 0; |
| 1070 | memmove(sb->buf + j, sb->buf + i, newlen); |
| 1071 | sb->buf[newlen + j++] = '\n'; |
| 1072 | } else { |
| 1073 | empties++; |
| 1074 | } |
| 1075 | } |
| 1076 | |
| 1077 | strbuf_setlen(sb, j); |
| 1078 | } |
Jeff King | 670c359 | 2016-10-03 16:34:17 -0400 | [diff] [blame] | 1079 | |
Derrick Stolee | 9ea5796 | 2022-12-22 15:14:14 +0000 | [diff] [blame] | 1080 | void strbuf_strip_file_from_path(struct strbuf *sb) |
| 1081 | { |
| 1082 | char *path_sep = find_last_dir_sep(sb->buf); |
| 1083 | strbuf_setlen(sb, path_sep ? path_sep - sb->buf + 1 : 0); |
| 1084 | } |