#include "unpack-trees.h"
#include "dir.h"
#include "tree.h"
+#include "pathspec.h"
static const char *get_mode(const char *str, unsigned int *modep)
{
/* Initialize the descriptor entry */
desc->entry.path = path;
- desc->entry.mode = mode;
+ desc->entry.mode = canon_mode(mode);
desc->entry.sha1 = (const unsigned char *)(path + len);
}
int traverse_trees(int n, struct tree_desc *t, struct traverse_info *info)
{
- int ret = 0;
int error = 0;
struct name_entry *entry = xmalloc(n*sizeof(*entry));
int i;
strbuf_setlen(&base, info->pathlen);
}
for (;;) {
+ int trees_used;
unsigned long mask, dirmask;
const char *first = NULL;
int first_len = 0;
if (interesting < 0)
break;
if (interesting) {
- ret = info->fn(n, mask, dirmask, entry, info);
- if (ret < 0) {
- error = ret;
+ trees_used = info->fn(n, mask, dirmask, entry, info);
+ if (trees_used < 0) {
+ error = trees_used;
if (!info->show_all_errors)
break;
}
- mask &= ret;
+ mask &= trees_used;
}
- ret = 0;
for (i = 0; i < n; i++)
if (mask & (1ul << i))
update_extended_entry(tx + i, entry + i);
return retval;
}
-static int match_entry(const struct name_entry *entry, int pathlen,
+static int match_entry(const struct pathspec_item *item,
+ const struct name_entry *entry, int pathlen,
const char *match, int matchlen,
enum interesting *never_interesting)
{
int m = -1; /* signals that we haven't called strncmp() */
- if (*never_interesting != entry_not_interesting) {
+ if (item->magic & PATHSPEC_ICASE)
+ /*
+ * "Never interesting" trick requires exact
+ * matching. We could do something clever with inexact
+ * matching, but it's trickier (and not to forget that
+ * strcasecmp is locale-dependent, at least in
+ * glibc). Just disable it for now. It can't be worse
+ * than the wildcard's codepath of '[Tt][Hi][Is][Ss]'
+ * pattern.
+ */
+ *never_interesting = entry_not_interesting;
+ else if (*never_interesting != entry_not_interesting) {
/*
* We have not seen any match that sorts later
* than the current path.
if (matchlen > pathlen) {
if (match[pathlen] != '/')
return 0;
- if (!S_ISDIR(entry->mode))
+ if (!S_ISDIR(entry->mode) && !S_ISGITLINK(entry->mode))
return 0;
}
* we cheated and did not do strncmp(), so we do
* that here.
*/
- m = strncmp(match, entry->path, pathlen);
+ m = ps_strncmp(item, match, entry->path, pathlen);
/*
* If common part matched earlier then it is a hit,
* leading directory and is shorter than match.
*/
if (!m)
+ /*
+ * match_entry does not check if the prefix part is
+ * matched case-sensitively. If the entry is a
+ * directory and part of prefix, it'll be rematched
+ * eventually by basecmp with special treatment for
+ * the prefix.
+ */
return 1;
return 0;
}
-static int match_dir_prefix(const char *base,
+/* :(icase)-aware string compare */
+static int basecmp(const struct pathspec_item *item,
+ const char *base, const char *match, int len)
+{
+ if (item->magic & PATHSPEC_ICASE) {
+ int ret, n = len > item->prefix ? item->prefix : len;
+ ret = strncmp(base, match, n);
+ if (ret)
+ return ret;
+ base += n;
+ match += n;
+ len -= n;
+ }
+ return ps_strncmp(item, base, match, len);
+}
+
+static int match_dir_prefix(const struct pathspec_item *item,
+ const char *base,
const char *match, int matchlen)
{
- if (strncmp(base, match, matchlen))
+ if (basecmp(item, base, match, matchlen))
return 0;
/*
}
/*
+ * Perform matching on the leading non-wildcard part of
+ * pathspec. item->nowildcard_len must be greater than zero. Return
+ * non-zero if base is matched.
+ */
+static int match_wildcard_base(const struct pathspec_item *item,
+ const char *base, int baselen,
+ int *matched)
+{
+ const char *match = item->match;
+ /* the wildcard part is not considered in this function */
+ int matchlen = item->nowildcard_len;
+
+ if (baselen) {
+ int dirlen;
+ /*
+ * Return early if base is longer than the
+ * non-wildcard part but it does not match.
+ */
+ if (baselen >= matchlen) {
+ *matched = matchlen;
+ return !basecmp(item, base, match, matchlen);
+ }
+
+ dirlen = matchlen;
+ while (dirlen && match[dirlen - 1] != '/')
+ dirlen--;
+
+ /*
+ * Return early if base is shorter than the
+ * non-wildcard part but it does not match. Note that
+ * base ends with '/' so we are sure it really matches
+ * directory
+ */
+ if (basecmp(item, base, match, baselen))
+ return 0;
+ *matched = baselen;
+ } else
+ *matched = 0;
+ /*
+ * we could have checked entry against the non-wildcard part
+ * that is not in base and does similar never_interesting
+ * optimization as in match_entry. For now just be happy with
+ * base comparison.
+ */
+ return entry_interesting;
+}
+
+/*
* Is a tree entry interesting given the pathspec we have?
*
* Pre-condition: either baselen == base_offset (i.e. empty path)
* or base[baselen-1] == '/' (i.e. with trailing slash).
*/
-enum interesting tree_entry_interesting(const struct name_entry *entry,
- struct strbuf *base, int base_offset,
- const struct pathspec *ps)
+static enum interesting do_match(const struct name_entry *entry,
+ struct strbuf *base, int base_offset,
+ const struct pathspec *ps,
+ int exclude)
{
int i;
int pathlen, baselen = base->len - base_offset;
enum interesting never_interesting = ps->has_wildcard ?
entry_not_interesting : all_entries_not_interesting;
+ GUARD_PATHSPEC(ps,
+ PATHSPEC_FROMTOP |
+ PATHSPEC_MAXDEPTH |
+ PATHSPEC_LITERAL |
+ PATHSPEC_GLOB |
+ PATHSPEC_ICASE |
+ PATHSPEC_EXCLUDE);
+
if (!ps->nr) {
- if (!ps->recursive || ps->max_depth == -1)
+ if (!ps->recursive ||
+ !(ps->magic & PATHSPEC_MAXDEPTH) ||
+ ps->max_depth == -1)
return all_entries_interesting;
return within_depth(base->buf + base_offset, baselen,
!!S_ISDIR(entry->mode),
const struct pathspec_item *item = ps->items+i;
const char *match = item->match;
const char *base_str = base->buf + base_offset;
- int matchlen = item->len;
+ int matchlen = item->len, matched = 0;
+
+ if ((!exclude && item->magic & PATHSPEC_EXCLUDE) ||
+ ( exclude && !(item->magic & PATHSPEC_EXCLUDE)))
+ continue;
if (baselen >= matchlen) {
/* If it doesn't match, move along... */
- if (!match_dir_prefix(base_str, match, matchlen))
+ if (!match_dir_prefix(item, base_str, match, matchlen))
goto match_wildcards;
- if (!ps->recursive || ps->max_depth == -1)
+ if (!ps->recursive ||
+ !(ps->magic & PATHSPEC_MAXDEPTH) ||
+ ps->max_depth == -1)
return all_entries_interesting;
return within_depth(base_str + matchlen + 1,
}
/* Either there must be no base, or the base must match. */
- if (baselen == 0 || !strncmp(base_str, match, baselen)) {
- if (match_entry(entry, pathlen,
+ if (baselen == 0 || !basecmp(item, base_str, match, baselen)) {
+ if (match_entry(item, entry, pathlen,
match + baselen, matchlen - baselen,
&never_interesting))
return entry_interesting;
- if (item->use_wildcard) {
- if (!fnmatch(match + baselen, entry->path, 0))
+ if (item->nowildcard_len < item->len) {
+ if (!git_fnmatch(item, match + baselen, entry->path,
+ item->nowildcard_len - baselen))
return entry_interesting;
/*
}
match_wildcards:
- if (!item->use_wildcard)
+ if (item->nowildcard_len == item->len)
+ continue;
+
+ if (item->nowildcard_len &&
+ !match_wildcard_base(item, base_str, baselen, &matched))
continue;
/*
* Concatenate base and entry->path into one and do
* fnmatch() on it.
+ *
+ * While we could avoid concatenation in certain cases
+ * [1], which saves a memcpy and potentially a
+ * realloc, it turns out not worth it. Measurement on
+ * linux-2.6 does not show any clear improvements,
+ * partly because of the nowildcard_len optimization
+ * in git_fnmatch(). Avoid micro-optimizations here.
+ *
+ * [1] if match_wildcard_base() says the base
+ * directory is already matched, we only need to match
+ * the rest, which is shorter so _in theory_ faster.
*/
strbuf_add(base, entry->path, pathlen);
- if (!fnmatch(match, base->buf + base_offset, 0)) {
+ if (!git_fnmatch(item, match, base->buf + base_offset,
+ item->nowildcard_len)) {
strbuf_setlen(base, base_offset + baselen);
return entry_interesting;
}
}
return never_interesting; /* No matches */
}
+
+/*
+ * Is a tree entry interesting given the pathspec we have?
+ *
+ * Pre-condition: either baselen == base_offset (i.e. empty path)
+ * or base[baselen-1] == '/' (i.e. with trailing slash).
+ */
+enum interesting tree_entry_interesting(const struct name_entry *entry,
+ struct strbuf *base, int base_offset,
+ const struct pathspec *ps)
+{
+ enum interesting positive, negative;
+ positive = do_match(entry, base, base_offset, ps, 0);
+
+ /*
+ * case | entry | positive | negative | result
+ * -----+-------+----------+----------+-------
+ * 1 | file | -1 | -1..2 | -1
+ * 2 | file | 0 | -1..2 | 0
+ * 3 | file | 1 | -1 | 1
+ * 4 | file | 1 | 0 | 1
+ * 5 | file | 1 | 1 | 0
+ * 6 | file | 1 | 2 | 0
+ * 7 | file | 2 | -1 | 2
+ * 8 | file | 2 | 0 | 2
+ * 9 | file | 2 | 1 | 0
+ * 10 | file | 2 | 2 | -1
+ * -----+-------+----------+----------+-------
+ * 11 | dir | -1 | -1..2 | -1
+ * 12 | dir | 0 | -1..2 | 0
+ * 13 | dir | 1 | -1 | 1
+ * 14 | dir | 1 | 0 | 1
+ * 15 | dir | 1 | 1 | 1 (*)
+ * 16 | dir | 1 | 2 | 0
+ * 17 | dir | 2 | -1 | 2
+ * 18 | dir | 2 | 0 | 2
+ * 19 | dir | 2 | 1 | 1 (*)
+ * 20 | dir | 2 | 2 | -1
+ *
+ * (*) An exclude pattern interested in a directory does not
+ * necessarily mean it will exclude all of the directory. In
+ * wildcard case, it can't decide until looking at individual
+ * files inside. So don't write such directories off yet.
+ */
+
+ if (!(ps->magic & PATHSPEC_EXCLUDE) ||
+ positive <= entry_not_interesting) /* #1, #2, #11, #12 */
+ return positive;
+
+ negative = do_match(entry, base, base_offset, ps, 1);
+
+ /* #3, #4, #7, #8, #13, #14, #17, #18 */
+ if (negative <= entry_not_interesting)
+ return positive;
+
+ /* #15, #19 */
+ if (S_ISDIR(entry->mode) &&
+ positive >= entry_interesting &&
+ negative == entry_interesting)
+ return entry_interesting;
+
+ if ((positive == entry_interesting &&
+ negative >= entry_interesting) || /* #5, #6, #16 */
+ (positive == all_entries_interesting &&
+ negative == entry_interesting)) /* #9 */
+ return entry_not_interesting;
+
+ return all_entries_not_interesting; /* #10, #20 */
+}
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