Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
Documentation/glossary-content.txt | 5 +
builtin/add.c | 5 +-
dir.c | 47 +++++++--
pathspec.c | 9 +-
pathspec.h | 4 +-
t/t6132-pathspec-exclude.sh (new +x) | 184 +++++++++++++++++++++++++++++++++++
tree-walk.c | 83 +++++++++++++++-
7 files changed, 324 insertions(+), 13 deletions(-)
create mode 100755 t/t6132-pathspec-exclude.sh
diff --git a/Documentation/glossary-content.txt b/Documentation/glossary-content.txt
index b7e7ab5..378306f 100644
--- a/Documentation/glossary-content.txt
+++ b/Documentation/glossary-content.txt
@@ -379,6 +379,11 @@ full pathname may have special meaning:
- Other consecutive asterisks are considered invalid.
+
Glob magic is incompatible with literal magic.
+
+exclude;;
+ After a path matches any non-exclude pathspec, it will be run
+ through all exclude pathspec (magic signature: `!`). If it
+ matches, the path is ignored.
--
[[def_parent]]parent::
diff --git a/builtin/add.c b/builtin/add.c
index 226f758..0df73ae 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -540,10 +540,13 @@ int cmd_add(int argc, const char **argv, const char *prefix)
PATHSPEC_FROMTOP |
PATHSPEC_LITERAL |
PATHSPEC_GLOB |
- PATHSPEC_ICASE);
+ PATHSPEC_ICASE |
+ PATHSPEC_EXCLUDE);
for (i = 0; i < pathspec.nr; i++) {
const char *path = pathspec.items[i].match;
+ if (pathspec.items[i].magic & PATHSPEC_EXCLUDE)
+ continue;
if (!seen[i] &&
((pathspec.items[i].magic &
(PATHSPEC_GLOB | PATHSPEC_ICASE)) ||
diff --git a/dir.c b/dir.c
index 23b6de4..d10a63f 100644
--- a/dir.c
+++ b/dir.c
@@ -126,10 +126,13 @@ static size_t common_prefix_len(const struct pathspec *pathspec)
PATHSPEC_MAXDEPTH |
PATHSPEC_LITERAL |
PATHSPEC_GLOB |
- PATHSPEC_ICASE);
+ PATHSPEC_ICASE |
+ PATHSPEC_EXCLUDE);
for (n = 0; n < pathspec->nr; n++) {
size_t i = 0, len = 0, item_len;
+ if (pathspec->items[n].magic & PATHSPEC_EXCLUDE)
+ continue;
if (pathspec->items[n].magic & PATHSPEC_ICASE)
item_len = pathspec->items[n].prefix;
else
@@ -279,9 +282,10 @@ static int match_pathspec_item(const struct pathspec_item *item, int prefix,
* pathspec did not match any names, which could indicate that the
* user mistyped the nth pathspec.
*/
-int match_pathspec_depth(const struct pathspec *ps,
- const char *name, int namelen,
- int prefix, char *seen)
+static int match_pathspec_depth_1(const struct pathspec *ps,
+ const char *name, int namelen,
+ int prefix, char *seen,
+ int exclude)
{
int i, retval = 0;
@@ -290,7 +294,8 @@ int match_pathspec_depth(const struct pathspec *ps,
PATHSPEC_MAXDEPTH |
PATHSPEC_LITERAL |
PATHSPEC_GLOB |
- PATHSPEC_ICASE);
+ PATHSPEC_ICASE |
+ PATHSPEC_EXCLUDE);
if (!ps->nr) {
if (!ps->recursive ||
@@ -309,8 +314,19 @@ int match_pathspec_depth(const struct pathspec *ps,
for (i = ps->nr - 1; i >= 0; i--) {
int how;
+
+ if ((!exclude && ps->items[i].magic & PATHSPEC_EXCLUDE) ||
+ ( exclude && !(ps->items[i].magic & PATHSPEC_EXCLUDE)))
+ continue;
+
if (seen && seen[i] == MATCHED_EXACTLY)
continue;
+ /*
+ * Make exclude patterns optional and never report
+ * "pathspec ':(exclude)foo' matches no files"
+ */
+ if (seen && ps->items[i].magic & PATHSPEC_EXCLUDE)
+ seen[i] = MATCHED_FNMATCH;
how = match_pathspec_item(ps->items+i, prefix, name, namelen);
if (ps->recursive &&
(ps->magic & PATHSPEC_MAXDEPTH) &&
@@ -334,6 +350,18 @@ int match_pathspec_depth(const struct pathspec *ps,
return retval;
}
+int match_pathspec_depth(const struct pathspec *ps,
+ const char *name, int namelen,
+ int prefix, char *seen)
+{
+ int positive, negative;
+ positive = match_pathspec_depth_1(ps, name, namelen, prefix, seen, 0);
+ if (!(ps->magic & PATHSPEC_EXCLUDE) || !positive)
+ return positive;
+ negative = match_pathspec_depth_1(ps, name, namelen, prefix, seen, 1);
+ return negative ? 0 : positive;
+}
+
/*
* Return the length of the "simple" part of a path match limiter.
*/
@@ -1375,11 +1403,18 @@ int read_directory(struct dir_struct *dir, const char *path, int len, const stru
PATHSPEC_MAXDEPTH |
PATHSPEC_LITERAL |
PATHSPEC_GLOB |
- PATHSPEC_ICASE);
+ PATHSPEC_ICASE |
+ PATHSPEC_EXCLUDE);
if (has_symlink_leading_path(path, len))
return dir->nr;
+ /*
+ * exclude patterns are treated like positive ones in
+ * create_simplify. Usually exclude patterns should be a
+ * subset of positive ones, which has no impacts on
+ * create_simplify().
+ */
simplify = create_simplify(pathspec ? pathspec->_raw : NULL);
if (!len || treat_leading_path(dir, path, len, simplify))
read_directory_recursive(dir, path, len, 0, simplify);
diff --git a/pathspec.c b/pathspec.c
index 87b3b82..4e6a727 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -71,6 +71,7 @@ static struct pathspec_magic {
{ PATHSPEC_LITERAL, 0, "literal" },
{ PATHSPEC_GLOB, '\0', "glob" },
{ PATHSPEC_ICASE, '\0', "icase" },
+ { PATHSPEC_EXCLUDE, '!', "exclude" },
};
/*
@@ -355,7 +356,7 @@ void parse_pathspec(struct pathspec *pathspec,
{
struct pathspec_item *item;
const char *entry = argv ? *argv : NULL;
- int i, n, prefixlen;
+ int i, n, prefixlen, nr_exclude = 0;
memset(pathspec, 0, sizeof(*pathspec));
@@ -412,6 +413,8 @@ void parse_pathspec(struct pathspec *pathspec,
if ((flags & PATHSPEC_LITERAL_PATH) &&
!(magic_mask & PATHSPEC_LITERAL))
item[i].magic |= PATHSPEC_LITERAL;
+ if (item[i].magic & PATHSPEC_EXCLUDE)
+ nr_exclude++;
if (item[i].magic & magic_mask)
unsupported_magic(entry,
item[i].magic & magic_mask,
@@ -427,6 +430,10 @@ void parse_pathspec(struct pathspec *pathspec,
pathspec->magic |= item[i].magic;
}
+ if (nr_exclude == n)
+ die(_("There is nothing to exclude from by :(exclude) patterns.\n"
+ "Perhaps you forgot to add either ':/' or '.' ?"));
+
if (pathspec->magic & PATHSPEC_MAXDEPTH) {
if (flags & PATHSPEC_KEEP_ORDER)
diff --git a/pathspec.h b/pathspec.h
index a75e924..0c11262 100644
--- a/pathspec.h
+++ b/pathspec.h
@@ -7,12 +7,14 @@
#define PATHSPEC_LITERAL (1<<2)
#define PATHSPEC_GLOB (1<<3)
#define PATHSPEC_ICASE (1<<4)
+#define PATHSPEC_EXCLUDE (1<<5)
#define PATHSPEC_ALL_MAGIC \
(PATHSPEC_FROMTOP | \
PATHSPEC_MAXDEPTH | \
PATHSPEC_LITERAL | \
PATHSPEC_GLOB | \
- PATHSPEC_ICASE)
+ PATHSPEC_ICASE | \
+ PATHSPEC_EXCLUDE)
#define PATHSPEC_ONESTAR 1 /* the pathspec pattern satisfies GFNM_ONESTAR */
diff --git a/t/t6132-pathspec-exclude.sh b/t/t6132-pathspec-exclude.sh
new file mode 100755
index 0000000..62049be
--- /dev/null
+++ b/t/t6132-pathspec-exclude.sh
@@ -0,0 +1,184 @@
+#!/bin/sh
+
+test_description='test case exclude pathspec'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+ for p in file sub/file sub/sub/file sub/file2 sub/sub/sub/file sub2/file; do
+ if echo $p | grep /; then
+ mkdir -p `dirname $p`
+ fi &&
+ : >$p &&
+ git add $p &&
+ git commit -m $p
+ done &&
+ git log --oneline --format=%s >actual &&
+ cat <<EOF >expect &&
+sub2/file
+sub/sub/sub/file
+sub/file2
+sub/sub/file
+sub/file
+file
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'exclude only should error out' '
+ test_must_fail git log --oneline --format=%s -- ":(exclude)sub"
+'
+
+test_expect_success 't_e_i() exclude sub' '
+ git log --oneline --format=%s -- . ":(exclude)sub" >actual
+ cat <<EOF >expect &&
+sub2/file
+file
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 't_e_i() exclude sub/sub/file' '
+ git log --oneline --format=%s -- . ":(exclude)sub/sub/file" >actual
+ cat <<EOF >expect &&
+sub2/file
+sub/sub/sub/file
+sub/file2
+sub/file
+file
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 't_e_i() exclude sub using mnemonic' '
+ git log --oneline --format=%s -- . ":!sub" >actual
+ cat <<EOF >expect &&
+sub2/file
+file
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 't_e_i() exclude :(icase)SUB' '
+ git log --oneline --format=%s -- . ":(exclude,icase)SUB" >actual
+ cat <<EOF >expect &&
+sub2/file
+file
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 't_e_i() exclude sub2 from sub' '
+ (
+ cd sub &&
+ git log --oneline --format=%s -- :/ ":/!sub2" >actual
+ cat <<EOF >expect &&
+sub/sub/sub/file
+sub/file2
+sub/sub/file
+sub/file
+file
+EOF
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 't_e_i() exclude sub/*file' '
+ git log --oneline --format=%s -- . ":(exclude)sub/*file" >actual
+ cat <<EOF >expect &&
+sub2/file
+sub/file2
+file
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 't_e_i() exclude :(glob)sub/*/file' '
+ git log --oneline --format=%s -- . ":(exclude,glob)sub/*/file" >actual
+ cat <<EOF >expect &&
+sub2/file
+sub/sub/sub/file
+sub/file2
+sub/file
+file
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'm_p_d() exclude sub' '
+ git ls-files -- . ":(exclude)sub" >actual
+ cat <<EOF >expect &&
+file
+sub2/file
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'm_p_d() exclude sub/sub/file' '
+ git ls-files -- . ":(exclude)sub/sub/file" >actual
+ cat <<EOF >expect &&
+file
+sub/file
+sub/file2
+sub/sub/sub/file
+sub2/file
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'm_p_d() exclude sub using mnemonic' '
+ git ls-files -- . ":!sub" >actual
+ cat <<EOF >expect &&
+file
+sub2/file
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'm_p_d() exclude :(icase)SUB' '
+ git ls-files -- . ":(exclude,icase)SUB" >actual
+ cat <<EOF >expect &&
+file
+sub2/file
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'm_p_d() exclude sub2 from sub' '
+ (
+ cd sub &&
+ git ls-files -- :/ ":/!sub2" >actual
+ cat <<EOF >expect &&
+../file
+file
+file2
+sub/file
+sub/sub/file
+EOF
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'm_p_d() exclude sub/*file' '
+ git ls-files -- . ":(exclude)sub/*file" >actual
+ cat <<EOF >expect &&
+file
+sub/file2
+sub2/file
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'm_p_d() exclude :(glob)sub/*/file' '
+ git ls-files -- . ":(exclude,glob)sub/*/file" >actual
+ cat <<EOF >expect &&
+file
+sub/file
+sub/file2
+sub/sub/sub/file
+sub2/file
+EOF
+ test_cmp expect actual
+'
+
+test_done
diff --git a/tree-walk.c b/tree-walk.c
index 5ece8c3..680afda 100644
--- a/tree-walk.c
+++ b/tree-walk.c
@@ -662,9 +662,10 @@ static int match_wildcard_base(const struct pathspec_item *item,
* 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;
@@ -676,7 +677,8 @@ enum interesting tree_entry_interesting(const struct name_entry *entry,
PATHSPEC_MAXDEPTH |
PATHSPEC_LITERAL |
PATHSPEC_GLOB |
- PATHSPEC_ICASE);
+ PATHSPEC_ICASE |
+ PATHSPEC_EXCLUDE);
if (!ps->nr) {
if (!ps->recursive ||
@@ -697,6 +699,10 @@ enum interesting tree_entry_interesting(const struct name_entry *entry,
const char *base_str = base->buf + base_offset;
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(item, base_str, match, matchlen))
@@ -782,3 +788,72 @@ match_wildcards:
}
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 */
+}
--
1.8.5.1.25.g8667982
--
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