diff options
Diffstat (limited to 'builtin')
| -rw-r--r-- | builtin/apply.c | 68 | ||||
| -rw-r--r-- | builtin/for-each-ref.c | 4 | ||||
| -rw-r--r-- | builtin/rev-parse.c | 16 |
3 files changed, 60 insertions, 28 deletions
diff --git a/builtin/apply.c b/builtin/apply.c index 3bf71dc452..ca8695ad31 100644 --- a/builtin/apply.c +++ b/builtin/apply.c @@ -1095,15 +1095,23 @@ static int gitdiff_unrecognized(const char *line, struct patch *patch) return -1; } -static const char *stop_at_slash(const char *line, int llen) +/* + * Skip p_value leading components from "line"; as we do not accept + * absolute paths, return NULL in that case. + */ +static const char *skip_tree_prefix(const char *line, int llen) { - int nslash = p_value; + int nslash; int i; + if (!p_value) + return (llen && line[0] == '/') ? NULL : line; + + nslash = p_value; for (i = 0; i < llen; i++) { int ch = line[i]; if (ch == '/' && --nslash <= 0) - return &line[i]; + return (i == 0) ? NULL : &line[i + 1]; } return NULL; } @@ -1133,12 +1141,11 @@ static char *git_header_name(const char *line, int llen) if (unquote_c_style(&first, line, &second)) goto free_and_fail1; - /* advance to the first slash */ - cp = stop_at_slash(first.buf, first.len); - /* we do not accept absolute paths */ - if (!cp || cp == first.buf) + /* strip the a/b prefix including trailing slash */ + cp = skip_tree_prefix(first.buf, first.len); + if (!cp) goto free_and_fail1; - strbuf_remove(&first, 0, cp + 1 - first.buf); + strbuf_remove(&first, 0, cp - first.buf); /* * second points at one past closing dq of name. @@ -1152,22 +1159,21 @@ static char *git_header_name(const char *line, int llen) if (*second == '"') { if (unquote_c_style(&sp, second, NULL)) goto free_and_fail1; - cp = stop_at_slash(sp.buf, sp.len); - if (!cp || cp == sp.buf) + cp = skip_tree_prefix(sp.buf, sp.len); + if (!cp) goto free_and_fail1; /* They must match, otherwise ignore */ - if (strcmp(cp + 1, first.buf)) + if (strcmp(cp, first.buf)) goto free_and_fail1; strbuf_release(&sp); return strbuf_detach(&first, NULL); } /* unquoted second */ - cp = stop_at_slash(second, line + llen - second); - if (!cp || cp == second) + cp = skip_tree_prefix(second, line + llen - second); + if (!cp) goto free_and_fail1; - cp++; - if (line + llen - cp != first.len + 1 || + if (line + llen - cp != first.len || memcmp(first.buf, cp, first.len)) goto free_and_fail1; return strbuf_detach(&first, NULL); @@ -1179,10 +1185,9 @@ static char *git_header_name(const char *line, int llen) } /* unquoted first name */ - name = stop_at_slash(line, llen); - if (!name || name == line) + name = skip_tree_prefix(line, llen); + if (!name) return NULL; - name++; /* * since the first name is unquoted, a dq if exists must be @@ -1196,10 +1201,9 @@ static char *git_header_name(const char *line, int llen) if (unquote_c_style(&sp, second, NULL)) goto free_and_fail2; - np = stop_at_slash(sp.buf, sp.len); - if (!np || np == sp.buf) + np = skip_tree_prefix(sp.buf, sp.len); + if (!np) goto free_and_fail2; - np++; len = sp.buf + sp.len - np; if (len < second - name && @@ -1231,13 +1235,27 @@ static char *git_header_name(const char *line, int llen) case '\n': return NULL; case '\t': case ' ': - second = stop_at_slash(name + len, line_len - len); + /* + * Is this the separator between the preimage + * and the postimage pathname? Again, we are + * only interested in the case where there is + * no rename, as this is only to set def_name + * and a rename patch has the names elsewhere + * in an unambiguous form. + */ + if (!name[len + 1]) + return NULL; /* no postimage name */ + second = skip_tree_prefix(name + len + 1, + line_len - (len + 1)); if (!second) return NULL; - second++; - if (second[len] == '\n' && !strncmp(name, second, len)) { + /* + * Does len bytes starting at "name" and "second" + * (that are separated by one HT or SP we just + * found) exactly match? + */ + if (second[len] == '\n' && !strncmp(name, second, len)) return xmemdupz(name, len); - } } } } diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c index b01d76a243..0c5294e5e8 100644 --- a/builtin/for-each-ref.c +++ b/builtin/for-each-ref.c @@ -962,7 +962,9 @@ static int opt_parse_sort(const struct option *opt, const char *arg, int unset) if (!arg) /* should --no-sort void the list ? */ return -1; - *sort_tail = s = xcalloc(1, sizeof(*s)); + s = xcalloc(1, sizeof(*s)); + s->next = *sort_tail; + *sort_tail = s; if (*arg == '-') { s->reverse = 1; diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c index 32788a9f86..25e225f067 100644 --- a/builtin/rev-parse.c +++ b/builtin/rev-parse.c @@ -230,6 +230,7 @@ static int try_difference(const char *arg) const char *next; const char *this; int symmetric; + static const char head_by_default[] = "HEAD"; if (!(dotdot = strstr(arg, ".."))) return 0; @@ -241,9 +242,20 @@ static int try_difference(const char *arg) next += symmetric; if (!*next) - next = "HEAD"; + next = head_by_default; if (dotdot == arg) - this = "HEAD"; + this = head_by_default; + + if (this == head_by_default && next == head_by_default && + !symmetric) { + /* + * Just ".."? That is not a range but the + * pathspec for the parent directory. + */ + *dotdot = '.'; + return 0; + } + if (!get_sha1_committish(this, sha1) && !get_sha1_committish(next, end)) { show_rev(NORMAL, end, next); show_rev(symmetric ? NORMAL : REVERSED, sha1, this); |