From: Junio C Hamano Date: Sun, 10 Sep 2017 08:08:25 +0000 (+0900) Subject: Merge branch 'rs/apply-epoch' X-Git-Tag: v2.15.0-rc0~102 X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/ef1d87c64b4f9a41fa03b039761f599750227d5a?ds=inline;hp=-c Merge branch 'rs/apply-epoch' Code simplification. * rs/apply-epoch: apply: remove epoch date from regex apply: check date of potential epoch timestamps first --- ef1d87c64b4f9a41fa03b039761f599750227d5a diff --combined apply.c index 86666217d4,3997f73a18..71cbbd141c --- a/apply.c +++ b/apply.c @@@ -80,6 -80,7 +80,6 @@@ int init_apply_state(struct apply_stat { memset(state, 0, sizeof(*state)); state->prefix = prefix; - state->prefix_length = state->prefix ? strlen(state->prefix) : 0; state->lock_file = lock_file; state->newfd = -1; state->apply = 1; @@@ -219,7 -220,6 +219,7 @@@ struct patch unsigned int recount:1; unsigned int conflicted_threeway:1; unsigned int direct_to_threeway:1; + unsigned int crlf_in_old:1; struct fragment *fragments; char *result; size_t resultsize; @@@ -786,11 -786,11 +786,11 @@@ static int guess_p_value(struct apply_s * Does it begin with "a/$our-prefix" and such? Then this is * very likely to apply to our directory. */ - if (!strncmp(name, state->prefix, state->prefix_length)) + if (starts_with(name, state->prefix)) val = count_slashes(state->prefix); else { cp++; - if (!strncmp(cp, state->prefix, state->prefix_length)) + if (starts_with(cp, state->prefix)) val = count_slashes(state->prefix) + 1; } } @@@ -812,16 -812,13 +812,13 @@@ static int has_epoch_timestamp(const ch * 1970-01-01, and the seconds part must be "00". */ const char stamp_regexp[] = - "^(1969-12-31|1970-01-01)" - " " - "[0-2][0-9]:[0-5][0-9]:00(\\.0+)?" + "^[0-2][0-9]:([0-5][0-9]):00(\\.0+)?" " " "([-+][0-2][0-9]:?[0-5][0-9])\n"; const char *timestamp = NULL, *cp, *colon; static regex_t *stamp; regmatch_t m[10]; - int zoneoffset; - int hourminute; + int zoneoffset, epoch_hour, hour, minute; int status; for (cp = nameline; *cp != '\n'; cp++) { @@@ -830,6 -827,18 +827,18 @@@ } if (!timestamp) return 0; + + /* + * YYYY-MM-DD hh:mm:ss must be from either 1969-12-31 + * (west of GMT) or 1970-01-01 (east of GMT) + */ + if (skip_prefix(timestamp, "1969-12-31 ", ×tamp)) + epoch_hour = 24; + else if (skip_prefix(timestamp, "1970-01-01 ", ×tamp)) + epoch_hour = 0; + else + return 0; + if (!stamp) { stamp = xmalloc(sizeof(*stamp)); if (regcomp(stamp, stamp_regexp, REG_EXTENDED)) { @@@ -847,6 -856,9 +856,9 @@@ return 0; } + hour = strtol(timestamp, NULL, 10); + minute = strtol(timestamp + m[1].rm_so, NULL, 10); + zoneoffset = strtol(timestamp + m[3].rm_so + 1, (char **) &colon, 10); if (*colon == ':') zoneoffset = zoneoffset * 60 + strtol(colon + 1, NULL, 10); @@@ -855,20 -867,7 +867,7 @@@ if (timestamp[m[3].rm_so] == '-') zoneoffset = -zoneoffset; - /* - * YYYY-MM-DD hh:mm:ss must be from either 1969-12-31 - * (west of GMT) or 1970-01-01 (east of GMT) - */ - if ((zoneoffset < 0 && memcmp(timestamp, "1969-12-31", 10)) || - (0 <= zoneoffset && memcmp(timestamp, "1970-01-01", 10))) - return 0; - - hourminute = (strtol(timestamp + 11, NULL, 10) * 60 + - strtol(timestamp + 14, NULL, 10) - - zoneoffset); - - return ((zoneoffset < 0 && hourminute == 1440) || - (0 <= zoneoffset && !hourminute)); + return hour * 60 + minute - zoneoffset == epoch_hour * 60; } /* @@@ -1662,19 -1661,6 +1661,19 @@@ static void check_whitespace(struct app record_ws_error(state, result, line + 1, len - 2, state->linenr); } +/* + * Check if the patch has context lines with CRLF or + * the patch wants to remove lines with CRLF. + */ +static void check_old_for_crlf(struct patch *patch, const char *line, int len) +{ + if (len >= 2 && line[len-1] == '\n' && line[len-2] == '\r') { + patch->ws_rule |= WS_CR_AT_EOL; + patch->crlf_in_old = 1; + } +} + + /* * Parse a unified diff. Note that this really needs to parse each * fragment separately, since the only way to know the difference @@@ -1725,14 -1711,11 +1724,14 @@@ static int parse_fragment(struct apply_ if (!deleted && !added) leading++; trailing++; + check_old_for_crlf(patch, line, len); if (!state->apply_in_reverse && state->ws_error_action == correct_ws_error) check_whitespace(state, line, len, patch->ws_rule); break; case '-': + if (!state->apply_in_reverse) + check_old_for_crlf(patch, line, len); if (state->apply_in_reverse && state->ws_error_action != nowarn_ws_error) check_whitespace(state, line, len, patch->ws_rule); @@@ -1741,8 -1724,6 +1740,8 @@@ trailing = 0; break; case '+': + if (state->apply_in_reverse) + check_old_for_crlf(patch, line, len); if (!state->apply_in_reverse && state->ws_error_action != nowarn_ws_error) check_whitespace(state, line, len, patch->ws_rule); @@@ -2107,9 -2088,10 +2106,9 @@@ static int use_patch(struct apply_stat int i; /* Paths outside are not touched regardless of "--include" */ - if (0 < state->prefix_length) { - int pathlen = strlen(pathname); - if (pathlen <= state->prefix_length || - memcmp(state->prefix, pathname, state->prefix_length)) + if (state->prefix && *state->prefix) { + const char *rest; + if (!skip_prefix(pathname, state->prefix, &rest) || !*rest) return 0; } @@@ -2285,11 -2267,8 +2284,11 @@@ static void show_stats(struct apply_sta add, pluses, del, minuses); } -static int read_old_data(struct stat *st, const char *path, struct strbuf *buf) +static int read_old_data(struct stat *st, struct patch *patch, + const char *path, struct strbuf *buf) { + enum safe_crlf safe_crlf = patch->crlf_in_old ? + SAFE_CRLF_KEEP_CRLF : SAFE_CRLF_RENORMALIZE; switch (st->st_mode & S_IFMT) { case S_IFLNK: if (strbuf_readlink(buf, path, st->st_size) < 0) @@@ -2298,15 -2277,7 +2297,15 @@@ case S_IFREG: if (strbuf_read_file(buf, path, st->st_size) != st->st_size) return error(_("unable to open or read %s"), path); - convert_to_git(&the_index, path, buf->buf, buf->len, buf, 0); + /* + * "git apply" without "--index/--cached" should never look + * at the index; the target file may not have been added to + * the index yet, and we may not even be in any Git repository. + * Pass NULL to convert_to_git() to stress this; the function + * should never look at the index when explicit crlf option + * is given. + */ + convert_to_git(NULL, path, buf->buf, buf->len, buf, safe_crlf); return 0; default: return -1; @@@ -3409,7 -3380,6 +3408,7 @@@ static int load_patch_target(struct app struct strbuf *buf, const struct cache_entry *ce, struct stat *st, + struct patch *patch, const char *name, unsigned expected_mode) { @@@ -3425,7 -3395,7 +3424,7 @@@ } else if (has_symlink_leading_path(name, strlen(name))) { return error(_("reading from '%s' beyond a symbolic link"), name); } else { - if (read_old_data(st, name, buf)) + if (read_old_data(st, patch, name, buf)) return error(_("failed to read %s"), name); } } @@@ -3458,7 -3428,7 +3457,7 @@@ static int load_preimage(struct apply_s /* We have a patched copy in memory; use that. */ strbuf_add(&buf, previous->result, previous->resultsize); } else { - status = load_patch_target(state, &buf, ce, st, + status = load_patch_target(state, &buf, ce, st, patch, patch->old_name, patch->old_mode); if (status < 0) return status; @@@ -3546,7 -3516,7 +3545,7 @@@ static int load_current(struct apply_st if (verify_index_match(ce, &st)) return error(_("%s: does not match index"), name); - status = load_patch_target(state, &buf, ce, &st, name, mode); + status = load_patch_target(state, &buf, ce, &st, patch, name, mode); if (status < 0) return status; else if (status) @@@ -3577,7 -3547,7 +3576,7 @@@ static int try_threeway(struct apply_st /* Preimage the patch was prepared for */ if (patch->is_new) write_sha1_file("", 0, blob_type, pre_oid.hash); - else if (get_sha1(patch->old_sha1_prefix, pre_oid.hash) || + else if (get_oid(patch->old_sha1_prefix, &pre_oid) || read_blob_object(&buf, &pre_oid, patch->old_mode)) return error(_("repository lacks the necessary blob to fall back on 3-way merge.")); @@@ -4101,7 -4071,7 +4100,7 @@@ static int build_fake_ancestor(struct a else return error(_("sha1 information is lacking or " "useless for submodule %s"), name); - } else if (!get_sha1_blob(patch->old_sha1_prefix, oid.hash)) { + } else if (!get_oid_blob(patch->old_sha1_prefix, &oid)) { ; /* ok */ } else if (!patch->lines_added && !patch->lines_deleted) { /* mode-only change: update the current */