Merge 'fixes' branch

Signed-off-by: Junio C Hamano <junkio@cox.net>

.gitignore

@@ -96,3 +96,7 @@ git-verify-pack
 git-verify-tag
 git-whatchanged
 git-write-tree
+#*.tar.gz
+#*.dsc
+#*.deb
+#git-core.spec

Documentation/git-diff-tree.txt

@@ -9,12 +9,15 @@ git-diff-tree - Compares the content and mode of blobs found via two tree object
 
 SYNOPSIS
 --------
-'git-diff-tree' [--stdin] [-m] [-s] [-v] [--pretty] [-t] [<common diff options>] <tree-ish> <tree-ish> [<path>...]
+'git-diff-tree' [--stdin] [-m] [-s] [-v] [--pretty] [-t] [<common diff options>] <tree-ish> [<tree-ish>] [<path>...]
 
 DESCRIPTION
 -----------
 Compares the content and mode of the blobs found via two tree objects.
 
+If there is only one <tree-ish> given, the commit is compared with its parents
+(see --stdin below).
+
 Note that "git-diff-tree" can use the tree encapsulated in a commit object.
 
 OPTIONS

compat/subprocess.py

@@ -2,31 +2,12 @@
 #
 # For more information about this module, see PEP 324.
 #
-# Copyright (c) 2003-2004 by Peter Astrand <astrand@lysator.liu.se>
+# This module should remain compatible with Python 2.2, see PEP 291.
 #
-# By obtaining, using, and/or copying this software and/or its
-# associated documentation, you agree that you have read, understood,
-# and will comply with the following terms and conditions:
-#
-# Permission to use, copy, modify, and distribute this software and
-# its associated documentation for any purpose and without fee is
-# hereby granted, provided that the above copyright notice appears in
-# all copies, and that both that copyright notice and this permission
-# notice appear in supporting documentation, and that the name of the
-# author not be used in advertising or publicity pertaining to
-# distribution of the software without specific, written prior
-# permission.
-#
-# THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
-# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
-# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR
-# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
-# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
-# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
-# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-#
-# Use of this file within git is permitted under GPLv2.
+# Copyright (c) 2003-2005 by Peter Astrand <astrand@lysator.liu.se>
 #
+# Licensed to PSF under a Contributor Agreement.
+# See http://www.python.org/2.4/license for licensing details.
 
 r"""subprocess - Subprocesses with accessible I/O streams
 

fetch.c

@@ -48,6 +48,7 @@ static int process_tree(struct tree *tree)
 		struct tree_entry_list *next = entry->next;
 		if (process(entry->item.any))
 			return -1;
+		free(entry->name);
 		free(entry);
 		entry = next;
 	}
@@ -206,6 +207,7 @@ int pull(char *target)
 	int fd = -1;
 
 	save_commit_buffer = 0;
+	track_object_refs = 0;
 	if (write_ref && current_ref) {
 		fd = lock_ref_sha1(write_ref, current_ref);
 		if (fd < 0)

git-diff.sh

@@ -9,9 +9,21 @@ files=$(git-rev-parse --no-revs --no-flags --sq "$@")
 
 : ${flags:="'-M' '-p'"}
 
+# I often say 'git diff --cached -p' and get scolded by git-diff-files, but
+# obviously I mean 'git diff --cached -p HEAD' in that case.
+case "$rev" in
+'')
+	case " $flags " in
+	*" '--cached' "*)
+		rev='HEAD '
+		;;
+	esac
+esac
+
 case "$rev" in
 ?*' '?*' '?*)
-	die "I don't understand"
+	echo >&2 "I don't understand"
+	exit 1
 	;;
 ?*' '^?*)
 	begin=$(expr "$rev" : '.*^.\([0-9a-f]*\).*') &&

local-fetch.c

@@ -38,6 +38,8 @@ static int setup_indices(void)
 	unsigned char sha1[20];
 	sprintf(filename, "%s/objects/pack/", path);
 	dir = opendir(filename);
+	if (!dir)
+		return -1;
 	while ((de = readdir(dir)) != NULL) {
 		int namelen = strlen(de->d_name);
 		if (namelen != 50 || 
@@ -46,10 +48,12 @@ static int setup_indices(void)
 		get_sha1_hex(de->d_name + 5, sha1);
 		setup_index(sha1);
 	}
+	closedir(dir);
 	return 0;
 }
 
-static int copy_file(const char *source, const char *dest, const char *hex)
+static int copy_file(const char *source, const char *dest, const char *hex,
+		     int warn_if_not_exists)
 {
 	if (use_link) {
 		if (!link(source, dest)) {
@@ -58,21 +62,36 @@ static int copy_file(const char *source, const char *dest, const char *hex)
 		}
 		/* If we got ENOENT there is no point continuing. */
 		if (errno == ENOENT) {
+			if (warn_if_not_exists)
 				fprintf(stderr, "does not exist %s\n", source);
 			return -1;
 		}
 	}
-	if (use_symlink && !symlink(source, dest)) {
+	if (use_symlink) {
+		struct stat st;
+		if (stat(source, &st)) {
+			if (!warn_if_not_exists && errno == ENOENT)
+				return -1;
+			fprintf(stderr, "cannot stat %s: %s\n", source,
+				strerror(errno));
+			return -1;
+		}
+		if (!symlink(source, dest)) {
 			pull_say("symlink %s\n", hex);
 			return 0;
 		}
+	}
 	if (use_filecopy) {
 		int ifd, ofd, status;
 		struct stat st;
 		void *map;
 		ifd = open(source, O_RDONLY);
 		if (ifd < 0 || fstat(ifd, &st) < 0) {
+			int err = errno;
+			if (ifd >= 0)
 				close(ifd);
+			if (!warn_if_not_exists && err == ENOENT)
+				return -1;
 			fprintf(stderr, "cannot open %s\n", source);
 			return -1;
 		}
@@ -86,6 +105,7 @@ static int copy_file(const char *source, const char *dest, const char *hex)
 		status = ((ofd < 0) ||
 			  (write(ofd, map, st.st_size) != st.st_size));
 		munmap(map, st.st_size);
+		if (ofd >= 0)
 			close(ofd);
 		if (status)
 			fprintf(stderr, "cannot write %s\n", dest);
@@ -116,11 +136,11 @@ static int fetch_pack(const unsigned char *sha1)
 	sprintf(filename, "%s/objects/pack/pack-%s.pack", 
 		path, sha1_to_hex(target->sha1));
 	copy_file(filename, sha1_pack_name(target->sha1),
-		  sha1_to_hex(target->sha1));
+		  sha1_to_hex(target->sha1), 1);
 	sprintf(filename, "%s/objects/pack/pack-%s.idx", 
 		path, sha1_to_hex(target->sha1));
 	copy_file(filename, sha1_pack_index_name(target->sha1),
-		  sha1_to_hex(target->sha1));
+		  sha1_to_hex(target->sha1), 1);
 	install_packed_git(target);
 	return 0;
 }
@@ -141,7 +161,7 @@ static int fetch_file(const unsigned char *sha1)
 	filename[object_name_start+1] = hex[1];
 	filename[object_name_start+2] = '/';
 	strcpy(filename + object_name_start + 3, hex + 2);
-	return copy_file(filename, dest_filename, hex);
+	return copy_file(filename, dest_filename, hex, 0);
 }
 
 int fetch(unsigned char *sha1)

rsh.c

@@ -53,6 +53,7 @@ static int add_to_string(char **ptrp, int *sizep, const char *str, int quote)
 	char *p = *ptrp;
 	int size = *sizep;
 	int oc;
+	int err = 0;
 
 	if ( quote ) {
 		oc = shell_quote(p, size, str);
@@ -62,15 +63,14 @@ static int add_to_string(char **ptrp, int *sizep, const char *str, int quote)
 	}
 
 	if ( oc >= size ) {
-		p[size-1] = '\0';
-		*ptrp += size-1;
-		*sizep = 1;
-		return 1;	/* Overflow, string unusable */
+		err = 1;
+		oc = size-1;
 	}
 
 	*ptrp  += oc;
+	**ptrp  = '\0';
 	*sizep -= oc;
-	return 0;
+	return err;
 }
 
 int setup_connection(int *fd_in, int *fd_out, const char *remote_prog,