Labels were originally designed to manage large amount of
submodules, the discussion steered this in a more general
direction, such that other files can be labeled as well.
Labels are meant to describe arbitrary set of files, which
is not described via the tree layout.
Signed-off-by: Stefan Beller <sbeller@xxxxxxxxxx>
---
Documentation/glossary-content.txt | 5 +++
attr.h | 1 +
dir.c | 31 +++++++++++++
pathspec.c | 24 +++++++++-
pathspec.h | 1 +
t/t6134-pathspec-with-labels.sh | 91 ++++++++++++++++++++++++++++++++++++++
6 files changed, 152 insertions(+), 1 deletion(-)
create mode 100755 t/t6134-pathspec-with-labels.sh
diff --git a/Documentation/glossary-content.txt b/Documentation/glossary-content.txt
index 8ad29e6..a1fc9e0 100644
--- a/Documentation/glossary-content.txt
+++ b/Documentation/glossary-content.txt
@@ -362,6 +362,11 @@ glob;;
For example, "Documentation/{asterisk}.html" matches
"Documentation/git.html" but not "Documentation/ppc/ppc.html"
or "tools/perf/Documentation/perf.html".
+
+label:<white space separated list>;;
+ Labels can be assigned to pathspecs in the .gitattributes file.
+ By specifying a list of labels the pattern will match only
+ files which have all of the listed labels.
+
Two consecutive asterisks ("`**`") in patterns matched against
full pathname may have special meaning:
diff --git a/attr.h b/attr.h
index 8b08d33..f6fc7c3 100644
--- a/attr.h
+++ b/attr.h
@@ -18,6 +18,7 @@ extern const char git_attr__false[];
#define ATTR_TRUE(v) ((v) == git_attr__true)
#define ATTR_FALSE(v) ((v) == git_attr__false)
#define ATTR_UNSET(v) ((v) == NULL)
+#define ATTR_CUSTOM(v) (!(ATTR_UNSET(v) || ATTR_FALSE(v) || ATTR_TRUE(v)))
/*
* Send one or more git_attr_check to git_check_attr(), and
diff --git a/dir.c b/dir.c
index 656f272..51d5965 100644
--- a/dir.c
+++ b/dir.c
@@ -9,6 +9,7 @@
*/
#include "cache.h"
#include "dir.h"
+#include "attr.h"
#include "refs.h"
#include "wildmatch.h"
#include "pathspec.h"
@@ -208,6 +209,27 @@ int within_depth(const char *name, int namelen,
return 1;
}
+void load_labels(const char *name, int namelen, struct string_list *list)
+{
+ static struct git_attr *attr;
+ struct git_attr_check check;
+ char *path = xmemdupz(name, namelen);
+
+ if (!attr)
+ attr = git_attr("label");
+ check.attr = attr;
+
+ if (git_check_attr(path, 1, &check))
+ die("git_check_attr died");
+
+ if (ATTR_CUSTOM(check.value)) {
+ string_list_split(list, check.value, ',', -1);
+ string_list_sort(list);
+ }
+
+ free(path);
+}
+
#define DO_MATCH_EXCLUDE 1
#define DO_MATCH_DIRECTORY 2
@@ -263,6 +285,15 @@ static int match_pathspec_item(const struct pathspec_item *item, int prefix,
strncmp(item->match, name - prefix, item->prefix))
return 0;
+ if (item->group) {
+ struct string_list has_labels = STRING_LIST_INIT_DUP;
+ struct string_list_item *si;
+ load_labels(name, namelen, &has_labels);
+ for_each_string_list_item(si, item->group)
+ if (!string_list_has_string(&has_labels, si->string))
+ return 0;
+ }
+
/* If the match was just the prefix, we matched */
if (!*match)
return MATCHED_RECURSIVELY;
diff --git a/pathspec.c b/pathspec.c
index 4dff252..c227c25 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -94,6 +94,7 @@ static void eat_long_magic(struct pathspec_item *item, const char *elt,
{
int i;
const char *copyfrom = *copyfrom_;
+ const char *out;
/* longhand */
const char *nextat;
for (copyfrom = elt + 2;
@@ -117,6 +118,20 @@ static void eat_long_magic(struct pathspec_item *item, const char *elt,
continue;
}
+ if (skip_prefix(copyfrom, "label:", &out)) {
+ struct strbuf sb = STRBUF_INIT;
+ size_t l = nextat - out;
+ strbuf_add(&sb, out, l);
+ if (!item->group) {
+ item->group = xmalloc(sizeof(*item->group));
+ string_list_init(item->group, 1);
+ }
+ string_list_split(item->group, sb.buf, ' ', -1);
+ string_list_remove_empty_items(item->group, 0);
+ strbuf_release(&sb);
+ continue;
+ }
+
for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++) {
if (strlen(pathspec_magic[i].name) == len &&
!strncmp(pathspec_magic[i].name, copyfrom, len)) {
@@ -425,7 +440,7 @@ void parse_pathspec(struct pathspec *pathspec,
for (i = 0; i < n; i++) {
unsigned short_magic;
entry = argv[i];
-
+ item[i].group = NULL;
item[i].magic = prefix_pathspec(item + i, &short_magic,
argv + i, flags,
prefix, prefixlen, entry);
@@ -502,6 +517,13 @@ void copy_pathspec(struct pathspec *dst, const struct pathspec *src)
void free_pathspec(struct pathspec *pathspec)
{
+ int i;
+ for (i = 0; i < pathspec->nr; i++) {
+ if (pathspec->items[i].group)
+ string_list_clear(pathspec->items[i].group, 1);
+ free(pathspec->items[i].group);
+ }
+
free(pathspec->items);
pathspec->items = NULL;
}
diff --git a/pathspec.h b/pathspec.h
index 0c11262..e3f7ebf 100644
--- a/pathspec.h
+++ b/pathspec.h
@@ -32,6 +32,7 @@ struct pathspec {
int len, prefix;
int nowildcard_len;
int flags;
+ struct string_list *group;
} *items;
};
diff --git a/t/t6134-pathspec-with-labels.sh b/t/t6134-pathspec-with-labels.sh
new file mode 100755
index 0000000..0c061ce
--- /dev/null
+++ b/t/t6134-pathspec-with-labels.sh
@@ -0,0 +1,91 @@
+#!/bin/sh
+
+test_description='test labels in pathspecs'
+. ./test-lib.sh
+
+test_expect_success 'setup a tree' '
+ 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 'pathspec with labels and no .gitattributes exists' '
+ git ls-files ":(label:a)" >actual &&
+ test_must_be_empty actual
+'
+
+test_expect_success 'setup .gitattributes' '
+ cat <<-EOF >.gitattributes &&
+ /file label=b
+ sub/file label=a
+ sub/sub/* label=b,c
+ EOF
+ git add .gitattributes &&
+ git commit -m "add attributes"
+'
+
+test_expect_success 'check label' '
+ cat <<-EOF >expect &&
+ sub/file
+ EOF
+ git ls-files ":(label:a)" >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'check label from label list' '
+ cat <<-EOF >expect &&
+ sub/sub/file
+ EOF
+ git ls-files ":(label:c)" >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'check label with more labels' '
+ cat <<-EOF >expect &&
+ file
+ sub/sub/file
+ EOF
+ git ls-files ":(label:b)" >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'check label with more labels but excluded path' '
+ cat <<-EOF >expect &&
+ sub/sub/file
+ EOF
+ git ls-files ":(label:b)" ":(exclude)./file" >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'check label specifying more labels' '
+ cat <<-EOF >expect &&
+ sub/sub/file
+ EOF
+ git ls-files ":(label:b c)" >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'check label specifying more labels' '
+ cat <<-EOF >expect &&
+ sub/file
+ sub/sub/file
+ EOF
+ git ls-files ":(label:b c)" ":(label:a)" >actual &&
+ test_cmp expect actual
+'
+test_done
--
2.8.2.400.g66c4903.dirty
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