From: Karthik Nayak <karthik.188@xxxxxxxxx>
Add support to sort by version using the "v:refname" and
"version:refname" option. This is achieved by using the 'versioncmp()'
function as the comparing function for qsort.
This option is included to support sorting by versions in `git tag -l`
which will eventaully be ported to use ref-filter APIs.
Add documentation and tests for the same.
Mentored-by: Christian Couder <christian.couder@xxxxxxxxx>
Mentored-by: Matthieu Moy <matthieu.moy@xxxxxxxxxxxxxxx>
Signed-off-by: Karthik Nayak <karthik.188@xxxxxxxxx>
---
Documentation/git-for-each-ref.txt | 3 +++
ref-filter.c | 14 +++++++++-----
ref-filter.h | 3 ++-
t/t6302-for-each-ref-filter.sh | 36 ++++++++++++++++++++++++++++++++++++
4 files changed, 50 insertions(+), 6 deletions(-)
diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt
index 9961921..bcf319a 100644
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -151,6 +151,9 @@ For sorting purposes, fields with numeric values sort in numeric
order (`objectsize`, `authordate`, `committerdate`, `taggerdate`).
All other fields are used to sort in their byte-value order.
+There is also an option to sort by versions, this can be done by using
+the fieldname `version:refname` or its alias `v:refname`.
+
In any case, a field name that refers to a field inapplicable to
the object referred by the ref does not cause an error. It
returns an empty string instead.
diff --git a/ref-filter.c b/ref-filter.c
index edb2c38..2b4a853 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -12,6 +12,7 @@
#include "revision.h"
#include "utf8.h"
#include "git-compat-util.h"
+#include "version.h"
typedef enum { FIELD_STR, FIELD_ULONG, FIELD_TIME } cmp_type;
@@ -1172,19 +1173,19 @@ static int cmp_ref_sorting(struct ref_sorting *s, struct ref_array_item *a, stru
get_ref_atom_value(a, s->atom, &va);
get_ref_atom_value(b, s->atom, &vb);
- switch (cmp_type) {
- case FIELD_STR:
+ if (s->version)
+ cmp = versioncmp(va->s, vb->s);
+ else if (cmp_type == FIELD_STR)
cmp = strcmp(va->s, vb->s);
- break;
- default:
+ else {
if (va->ul < vb->ul)
cmp = -1;
else if (va->ul == vb->ul)
cmp = 0;
else
cmp = 1;
- break;
}
+
return (s->reverse) ? -cmp : cmp;
}
@@ -1429,6 +1430,9 @@ int parse_opt_ref_sorting(const struct option *opt, const char *arg, int unset)
s->reverse = 1;
arg++;
}
+ if (skip_prefix(arg, "version:", &arg) ||
+ skip_prefix(arg, "v:", &arg))
+ s->version = 1;
len = strlen(arg);
s->atom = parse_ref_filter_atom(arg, arg+len);
return 0;
diff --git a/ref-filter.h b/ref-filter.h
index 4d94ebf..2bdae58 100644
--- a/ref-filter.h
+++ b/ref-filter.h
@@ -34,7 +34,8 @@ struct ref_formatting_state {
struct ref_sorting {
struct ref_sorting *next;
int atom; /* index into used_atom array (internal) */
- unsigned reverse : 1;
+ unsigned reverse : 1,
+ version : 1;
};
struct ref_array_item {
diff --git a/t/t6302-for-each-ref-filter.sh b/t/t6302-for-each-ref-filter.sh
index 48caac9..b9ebb3d 100755
--- a/t/t6302-for-each-ref-filter.sh
+++ b/t/t6302-for-each-ref-filter.sh
@@ -113,4 +113,40 @@ test_expect_success 'no padding when `padright` length is smaller than atom leng
test_cmp expect actual
'
+test_expect_success 'setup for version sort' '
+ test_commit foo1.3 &&
+ test_commit foo1.6 &&
+ test_commit foo1.10
+'
+
+test_expect_success 'version sort' '
+ git for-each-ref --sort=version:refname --format="%(refname:short)" refs/tags/ | grep "foo" >actual &&
+ cat >expect <<-\EOF &&
+ foo1.3
+ foo1.6
+ foo1.10
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'version sort (shortened)' '
+ git for-each-ref --sort=v:refname --format="%(refname:short)" refs/tags/ | grep "foo" >actual &&
+ cat >expect <<-\EOF &&
+ foo1.3
+ foo1.6
+ foo1.10
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'reverse version sort' '
+ git for-each-ref --sort=-version:refname --format="%(refname:short)" refs/tags/ | grep "foo" >actual &&
+ cat >expect <<-\EOF &&
+ foo1.10
+ foo1.6
+ foo1.3
+ EOF
+ test_cmp expect actual
+'
+
test_done
--
2.4.6
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