Merge branches 'master' and 'jc/combine' into next

* master:
  Add git-clean command
  diff_flush(): leakfix.
  parse_date(): fix parsing 03/10/2006

* jc/combine:
  combine-diff: refactor built-in xdiff interface.

.gitignore

@@ -15,6 +15,7 @@ git-checkout
 git-checkout-index
 git-cherry
 git-cherry-pick
+git-clean
 git-clone
 git-clone-pack
 git-commit

Documentation/git-clean.txt

@@ -0,0 +1,50 @@
+git-clean(1)
+============
+
+NAME
+----
+git-clean - Remove untracked files from the working tree
+
+SYNOPSIS
+--------
+[verse]
+'git-clean' [-d] [-n] [-q] [-x | -X]
+
+DESCRIPTION
+-----------
+Removes files unknown to git.  This allows to clean the working tree
+from files that are not under version control.  If the '-x' option is
+specified, ignored files are also removed, allowing to remove all
+build products.
+
+OPTIONS
+-------
+-d::
+	Remove untracked directories in addition to untracked files.
+
+-n::
+	Don't actually remove anything, just show what would be done.
+
+-q::
+	Be quiet, only report errors, but not the files that are
+	successfully removed.
+
+-x::
+	Don't use the ignore rules.  This allows removing all untracked
+	files, including build products.  This can be used (possibly in
+	conjunction with gitlink:git-reset[1]) to create a pristine
+	working directory to test a clean build.
+
+-X::
+	Remove only files ignored by git.  This may be useful to rebuild
+	everything from scratch, but keep manually created files.
+
+
+Author
+------
+Written by Pavel Roskin <proski@gnu.org>
+
+
+GIT
+---
+Part of the gitlink:git[7] suite

Makefile

@@ -114,7 +114,7 @@ SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__
 
 SCRIPT_SH = \
 	git-add.sh git-bisect.sh git-branch.sh git-checkout.sh \
-	git-cherry.sh git-clone.sh git-commit.sh \
+	git-cherry.sh git-clean.sh git-clone.sh git-commit.sh \
 	git-count-objects.sh git-diff.sh git-fetch.sh \
 	git-format-patch.sh git-log.sh git-ls-remote.sh \
 	git-merge-one-file.sh git-parse-remote.sh \
@@ -208,7 +208,7 @@ LIB_OBJS = \
 	quote.o read-cache.o refs.o run-command.o \
 	server-info.o setup.o sha1_file.o sha1_name.o strbuf.o \
 	tag.o tree.o usage.o config.o environment.o ctype.o copy.o \
-	fetch-clone.o revision.o pager.o tree-walk.o \
+	fetch-clone.o revision.o pager.o tree-walk.o xdiff-interface.o \
 	$(DIFF_OBJS)
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)

combine-diff.c

@@ -4,7 +4,7 @@
 #include "diff.h"
 #include "diffcore.h"
 #include "quote.h"
-#include "xdiff/xdiff.h"
+#include "xdiff-interface.h"
 
 static int uninteresting(struct diff_filepair *p)
 {
@@ -195,8 +195,8 @@ static void append_lost(struct sline *sline, int n, const char *line, int len)
 }
 
 struct combine_diff_state {
-	char *remainder;
-	unsigned long remainder_size;
+	struct xdiff_emit_state xm;
+
 	unsigned int lno, ob, on, nb, nn;
 	unsigned long nmask;
 	int num_parent;
@@ -205,10 +205,9 @@ struct combine_diff_state {
 	struct sline *lost_bucket;
 };
 
-static void consume_line(struct combine_diff_state *state,
-			 char *line,
-			 unsigned long len)
+static void consume_line(void *state_, char *line, unsigned long len)
 {
+	struct combine_diff_state *state = state_;
 	if (5 < len && !memcmp("@@ -", line, 4)) {
 		if (parse_hunk_header(line, len,
 				      &state->ob, &state->on,
@@ -249,41 +248,6 @@ static void consume_line(struct combine_diff_state *state,
 	}
 }
 
-static int combine_diff_outf(void *priv_, mmbuffer_t *mb, int nbuf)
-{
-	struct combine_diff_state *priv = priv_;
-	int i;
-	for (i = 0; i < nbuf; i++) {
-		if (mb[i].ptr[mb[i].size-1] != '\n') {
-			/* Incomplete line */
-			priv->remainder = realloc(priv->remainder,
-						  priv->remainder_size +
-						  mb[i].size);
-			memcpy(priv->remainder + priv->remainder_size,
-			       mb[i].ptr, mb[i].size);
-			priv->remainder_size += mb[i].size;
-			continue;
-		}
-
-		/* we have a complete line */
-		if (!priv->remainder) {
-			consume_line(priv, mb[i].ptr, mb[i].size);
-			continue;
-		}
-		priv->remainder = realloc(priv->remainder,
-					  priv->remainder_size +
-					  mb[i].size);
-		memcpy(priv->remainder + priv->remainder_size,
-		       mb[i].ptr, mb[i].size);
-		consume_line(priv, priv->remainder,
-			     priv->remainder_size + mb[i].size);
-		free(priv->remainder);
-		priv->remainder = NULL;
-		priv->remainder_size = 0;
-	}
-	return 0;
-}
-
 static void combine_diff(const unsigned char *parent, mmfile_t *result_file,
 			 struct sline *sline, int cnt, int n, int num_parent)
 {
@@ -304,9 +268,10 @@ static void combine_diff(const unsigned char *parent, mmfile_t *result_file,
 	xpp.flags = XDF_NEED_MINIMAL;
 	xecfg.ctxlen = 0;
 	xecfg.flags = 0;
-	ecb.outf = combine_diff_outf;
+	ecb.outf = xdiff_outf;
 	ecb.priv = &state;
 	memset(&state, 0, sizeof(state));
+	state.xm.consume = consume_line;
 	state.nmask = nmask;
 	state.sline = sline;
 	state.lno = 1;
@@ -314,9 +279,6 @@ static void combine_diff(const unsigned char *parent, mmfile_t *result_file,
 	state.n = n;
 
 	xdl_diff(&parent_file, result_file, &xpp, &xecfg, &ecb);
-	if (state.remainder && state.remainder_size)
-		consume_line(&state, state.remainder, state.remainder_size);
-	free(state.remainder);
 	free(parent_file.ptr);
 
 	/* Assign line numbers for this parent.

date.c

@@ -255,10 +255,10 @@ static int match_multi_number(unsigned long num, char c, const char *date, char
 				break;
 		}
 		/* mm/dd/yy ? */
-		if (is_date(num3, num2, num, tm))
+		if (is_date(num3, num, num2, tm))
 			break;
 		/* dd/mm/yy ? */
-		if (is_date(num3, num, num2, tm))
+		if (is_date(num3, num2, num, tm))
 			break;
 		return 0;
 	}

diff.c

@@ -1282,28 +1282,34 @@ void diff_flush(struct diff_options *options)
 
 	for (i = 0; i < q->nr; i++) {
 		struct diff_filepair *p = q->queue[i];
-		if ((diff_output_format == DIFF_FORMAT_NO_OUTPUT) ||
-		    (p->status == DIFF_STATUS_UNKNOWN))
-			continue;
-		if (p->status == 0)
+
+		switch (p->status) {
+		case DIFF_STATUS_UNKNOWN:
+			break;
+		case 0:
 			die("internal error in diff-resolve-rename-copy");
-		switch (diff_output_format) {
-		case DIFF_FORMAT_PATCH:
-			diff_flush_patch(p, options);
-			break;
-		case DIFF_FORMAT_RAW:
-		case DIFF_FORMAT_NAME_STATUS:
-			diff_flush_raw(p, line_termination,
-				       inter_name_termination,
-				       options);
-			break;
-		case DIFF_FORMAT_NAME:
-			diff_flush_name(p,
-					inter_name_termination,
-					line_termination);
 			break;
+		default:
+			switch (diff_output_format) {
+			case DIFF_FORMAT_PATCH:
+				diff_flush_patch(p, options);
+				break;
+			case DIFF_FORMAT_RAW:
+			case DIFF_FORMAT_NAME_STATUS:
+				diff_flush_raw(p, line_termination,
+					       inter_name_termination,
+					       options);
+				break;
+			case DIFF_FORMAT_NAME:
+				diff_flush_name(p,
+						inter_name_termination,
+						line_termination);
+				break;
+			case DIFF_FORMAT_NO_OUTPUT:
+				break;
+			}
 		}
-		diff_free_filepair(q->queue[i]);
+		diff_free_filepair(p);
 	}
 	free(q->queue);
 	q->queue = NULL;

git-clean.sh

@@ -0,0 +1,80 @@
+#!/bin/sh
+#
+# Copyright (c) 2005-2006 Pavel Roskin
+#
+
+USAGE="[-d] [-n] [-q] [-x | -X]"
+LONG_USAGE='Clean untracked files from the working directory
+	-d	remove directories as well
+	-n 	don'\''t remove anything, just show what would be done
+	-q	be quiet, only report errors
+	-x	remove ignored files as well
+	-X	remove only ignored files as well'
+SUBDIRECTORY_OK=Yes
+. git-sh-setup
+
+ignored=
+ignoredonly=
+cleandir=
+quiet=
+rmf="rm -f"
+rmrf="rm -rf"
+rm_refuse="echo Not removing"
+echo1="echo"
+
+while case "$#" in 0) break ;; esac
+do
+	case "$1" in
+	-d)
+		cleandir=1
+		;;
+	-n)
+		quiet=1
+		rmf="echo Would remove"
+		rmrf="echo Would remove"
+		rm_refuse="echo Would not remove"
+		echo1=":"
+		;;
+	-q)
+		quiet=1
+		;;
+	-x)
+		ignored=1
+		;;
+	-X)
+		ignoredonly=1
+		;;
+	*)
+		usage
+	esac
+	shift
+done
+
+case "$ignored,$ignoredonly" in
+	1,1) usage;;
+esac
+
+if [ -z "$ignored" ]; then
+	excl="--exclude-per-directory=.gitignore"
+	if [ -f "$GIT_DIR/info/exclude" ]; then
+		excl_info="--exclude-from=$GIT_DIR/info/exclude"
+	fi
+	if [ "$ignoredonly" ]; then
+		excl="$excl --ignored"
+	fi
+fi
+
+git-ls-files --others --directory $excl ${excl_info:+"$excl_info"} |
+while read -r file; do
+	if [ -d "$file" -a ! -L "$file" ]; then
+		if [ -z "$cleandir" ]; then
+			$rm_refuse "$file"
+			continue
+		fi
+		$echo1 "Removing $file"
+		$rmrf "$file"
+	else
+		$echo1 "Removing $file"
+		$rmf "$file"
+	fi
+done

xdiff-interface.c

@@ -0,0 +1,58 @@
+#include "cache.h"
+#include "xdiff-interface.h"
+
+static void consume_one(void *priv_, char *s, unsigned long size)
+{
+	struct xdiff_emit_state *priv = priv_;
+	char *ep;
+	while (size) {
+		unsigned long this_size;
+		ep = memchr(s, '\n', size);
+		this_size = (ep == NULL) ? size : (ep - s + 1);
+		priv->consume(priv, s, this_size);
+		size -= this_size;
+		s += this_size;
+	}
+}
+
+int xdiff_outf(void *priv_, mmbuffer_t *mb, int nbuf)
+{
+	struct xdiff_emit_state *priv = priv_;
+	int i;
+
+	for (i = 0; i < nbuf; i++) {
+		if (mb[i].ptr[mb[i].size-1] != '\n') {
+			/* Incomplete line */
+			priv->remainder = realloc(priv->remainder,
+						  priv->remainder_size +
+						  mb[i].size);
+			memcpy(priv->remainder + priv->remainder_size,
+			       mb[i].ptr, mb[i].size);
+			priv->remainder_size += mb[i].size;
+			continue;
+		}
+
+		/* we have a complete line */
+		if (!priv->remainder) {
+			consume_one(priv, mb[i].ptr, mb[i].size);
+			continue;
+		}
+		priv->remainder = realloc(priv->remainder,
+					  priv->remainder_size +
+					  mb[i].size);
+		memcpy(priv->remainder + priv->remainder_size,
+		       mb[i].ptr, mb[i].size);
+		consume_one(priv, priv->remainder,
+			    priv->remainder_size + mb[i].size);
+		free(priv->remainder);
+		priv->remainder = NULL;
+		priv->remainder_size = 0;
+	}
+	if (priv->remainder) {
+		consume_one(priv, priv->remainder, priv->remainder_size);
+		free(priv->remainder);
+		priv->remainder = NULL;
+		priv->remainder_size = 0;
+	}
+	return 0;
+}

xdiff-interface.h

@@ -0,0 +1,18 @@
+#ifndef XDIFF_INTERFACE_H
+#define XDIFF_INTERFACE_H
+
+#include "xdiff/xdiff.h"
+
+struct xdiff_emit_state;
+
+typedef void (*xdiff_emit_consume_fn)(void *, char *, unsigned long);
+
+struct xdiff_emit_state {
+	xdiff_emit_consume_fn consume;
+	char *remainder;
+	unsigned long remainder_size;
+};
+
+int xdiff_outf(void *priv_, mmbuffer_t *mb, int nbuf);
+
+#endif