Hi everyone,
This small patch makes git display list of branches in natural order.
This way, when you name your branches against, for instance, a bug number from
some bug-tracking tool, the list will show up in a natural/human/logical order.
Current behavior for "git branch":
BUG-1040-doing-bar-is-too-slow
BUG-84-calling-Z-with-null-segfaults
BUG-900-program-freezes-when-user-click-on-button
experimental-feature-X
master
With the patch:
BUG-84-calling-Z-with-null-segfaults
BUG-900-program-freezes-when-user-click-on-button
BUG-1040-doing-bar-takes-too-much-time
experimental-feature-X
master
Signed-off-by: Cedric Vivier <cedricv@neonux.com>
---
Makefile | 3 +
builtin-branch.c | 3 +-
strnatcmp.c | 179 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
strnatcmp.h | 32 ++++++++++
4 files changed, 216 insertions(+), 1 deletions(-)
create mode 100644 strnatcmp.c
create mode 100644 strnatcmp.h
diff --git a/Makefile b/Makefile
index cce5a6e..469b312 100644
--- a/Makefile
+++ b/Makefile
@@ -376,6 +376,7 @@ LIB_H += tree-walk.h
LIB_H += unpack-trees.h
LIB_H += utf8.h
LIB_H += wt-status.h
+LIB_H += strnatcmp.h
LIB_OBJS += alias.o
LIB_OBJS += alloc.o
@@ -471,6 +472,7 @@ LIB_OBJS += write_or_die.o
LIB_OBJS += ws.o
LIB_OBJS += wt-status.o
LIB_OBJS += xdiff-interface.o
+LIB_OBJS += strnatcmp.o
BUILTIN_OBJS += builtin-add.o
BUILTIN_OBJS += builtin-annotate.o
@@ -1141,6 +1143,7 @@ $(XDIFF_OBJS): xdiff/xinclude.h xdiff/xmacros.h
xdiff/xdiff.h xdiff/xtypes.h \
$(XDIFF_LIB): $(XDIFF_OBJS)
$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(XDIFF_OBJS)
+strnatcmp.o: strnatcmp.c
doc:
$(MAKE) -C Documentation all
diff --git a/builtin-branch.c b/builtin-branch.c
index d279702..c9c6788 100644
--- a/builtin-branch.c
+++ b/builtin-branch.c
@@ -13,6 +13,7 @@
#include "remote.h"
#include "parse-options.h"
#include "branch.h"
+#include "strnatcmp.h"
static const char * const builtin_branch_usage[] = {
"git-branch [options] [-r | -a] [--merged | --no-merged]",
@@ -279,7 +280,7 @@ static int ref_cmp(const void *r1, const void *r2)
if (c1->kind != c2->kind)
return c1->kind - c2->kind;
- return strcmp(c1->name, c2->name);
+ return strnatcmp(c1->name, c2->name);
}
static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
diff --git a/strnatcmp.c b/strnatcmp.c
new file mode 100644
index 0000000..46bae0f
--- /dev/null
+++ b/strnatcmp.c
@@ -0,0 +1,179 @@
+/* -*- mode: c; c-file-style: "k&r" -*-
+
+ strnatcmp.c -- Perform 'natural order' comparisons of strings in C.
+ Copyright (C) 2000, 2004 by Martin Pool <mbp sourcefrog net>
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+*/
+
+
+/* partial change history:
+ *
+ * 2004-10-10 mbp: Lift out character type dependencies into macros.
+ *
+ * Eric Sosman pointed out that ctype functions take a parameter whose
+ * value must be that of an unsigned int, even on platforms that have
+ * negative chars in their default char type.
+ */
+
+#include <ctype.h>
+#include <string.h>
+#include <assert.h>
+#include <stdio.h>
+
+#include "strnatcmp.h"
+
+
+/* These are defined as macros to make it easier to adapt this code to
+ * different characters types or comparison functions. */
+static inline int
+nat_isdigit(nat_char a)
+{
+ return isdigit((unsigned char) a);
+}
+
+
+static inline int
+nat_isspace(nat_char a)
+{
+ return isspace((unsigned char) a);
+}
+
+
+static inline nat_char
+nat_toupper(nat_char a)
+{
+ return toupper((unsigned char) a);
+}
+
+
+
+static int
+compare_right(nat_char const *a, nat_char const *b)
+{
+ int bias = 0;
+
+ /* The longest run of digits wins. That aside, the greatest
+ value wins, but we can't know that it will until we've scanned
+ both numbers to know that they have the same magnitude, so we
+ remember it in BIAS. */
+ for (;; a++, b++) {
+ if (!nat_isdigit(*a) && !nat_isdigit(*b))
+ return bias;
+ else if (!nat_isdigit(*a))
+ return -1;
+ else if (!nat_isdigit(*b))
+ return +1;
+ else if (*a < *b) {
+ if (!bias)
+ bias = -1;
+ } else if (*a > *b) {
+ if (!bias)
+ bias = +1;
+ } else if (!*a && !*b)
+ return bias;
+ }
+
+ return 0;
+}
+
+
+static int
+compare_left(nat_char const *a, nat_char const *b)
+{
+ /* Compare two left-aligned numbers: the first to have a
+ different value wins. */
+ for (;; a++, b++) {
+ if (!nat_isdigit(*a) && !nat_isdigit(*b))
+ return 0;
+ else if (!nat_isdigit(*a))
+ return -1;
+ else if (!nat_isdigit(*b))
+ return +1;
+ else if (*a < *b)
+ return -1;
+ else if (*a > *b)
+ return +1;
+ }
+
+ return 0;
+}
+
+
+static int strnatcmp0(nat_char const *a, nat_char const *b, int fold_case)
+{
+ int ai, bi;
+ nat_char ca, cb;
+ int fractional, result;
+
+ assert(a && b);
+ ai = bi = 0;
+ while (1) {
+ ca = a[ai]; cb = b[bi];
+
+ /* skip over leading spaces or zeros */
+ while (nat_isspace(ca))
+ ca = a[++ai];
+
+ while (nat_isspace(cb))
+ cb = b[++bi];
+
+ /* process run of digits */
+ if (nat_isdigit(ca) && nat_isdigit(cb)) {
+ fractional = (ca == '0' || cb == '0');
+
+ if (fractional) {
+ if ((result = compare_left(a+ai, b+bi)) != 0)
+ return result;
+ } else {
+ if ((result = compare_right(a+ai, b+bi)) != 0)
+ return result;
+ }
+ }
+
+ if (!ca && !cb) {
+ /* The strings compare the same. Perhaps the caller
+ will want to call strcmp to break the tie. */
+ return 0;
+ }
+
+ if (fold_case) {
+ ca = nat_toupper(ca);
+ cb = nat_toupper(cb);
+ }
+
+ if (ca < cb)
+ return -1;
+ else if (ca > cb)
+ return +1;
+
+ ++ai; ++bi;
+ }
+}
+
+
+
+int strnatcmp(nat_char const *a, nat_char const *b) {
+ return strnatcmp0(a, b, 0);
+}
+
+
+/* Compare, recognizing numeric string and ignoring case. */
+int strnatcasecmp(nat_char const *a, nat_char const *b) {
+ return strnatcmp0(a, b, 1);
+}
+
diff --git a/strnatcmp.h b/strnatcmp.h
new file mode 100644
index 0000000..7b2ca39
--- /dev/null
+++ b/strnatcmp.h
@@ -0,0 +1,32 @@
+/* -*- mode: c; c-file-style: "k&r" -*-
+
+ strnatcmp.c -- Perform 'natural order' comparisons of strings in C.
+ Copyright (C) 2000, 2004 by Martin Pool <mbp sourcefrog net>
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+*/
+
+
+/* CUSTOMIZATION SECTION
+ *
+ * You can change this typedef, but must then also change the inline
+ * functions in strnatcmp.c */
+typedef char nat_char;
+
+int strnatcmp(nat_char const *a, nat_char const *b);
+int strnatcasecmp(nat_char const *a, nat_char const *b);
+
--
1.5.6.rc1.12.g7f71.dirty
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