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From 065cf0958c39600f2062cbeeb5b76929d03c207b Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 22 Nov 2010 22:50:58 -0800
Subject: [PATCH] * src/names.c: tar: fix bug with --one-file-system --listed-incremental

Problem (and idea for fix) reported by Martin Weigel
<http://lists.gnu.org/archive/html/bug-tar/2010-11/msg00071.html>.
* src/common.h (is_individual_file): Remove decl.
* src/create.c (dump_file0): Replace "is_individual_file (p)"
with "top_level".
* src/incremen.c (procdir): Replace "!is_individual_file
(name_buffer)" with "st->parent".  Fix bug with --one-file-system
and --listed-incremental.
* src/names.c (individual_file_table, register_individual_file):
(is_individual_file): Remove.  All uses removed.
---
 src/common.h   |    1 -
 src/create.c   |    4 ++--
 src/incremen.c |    8 ++------
 src/names.c    |   26 --------------------------
 4 files changed, 4 insertions(+), 35 deletions(-)

diff --git a/src/common.h b/src/common.h
index 35e056e..9444fd7 100644
--- a/src/common.h
+++ b/src/common.h
@@ -680,7 +680,6 @@ bool excluded_name (char const *name);
 
 void add_avoided_name (char const *name);
 bool is_avoided_name (char const *name);
-bool is_individual_file (char const *name);
 
 bool contains_dot_dot (char const *name);
 
diff --git a/src/create.c b/src/create.c
index a1e90a3..e8de6b9 100644
--- a/src/create.c
+++ b/src/create.c
@@ -1678,9 +1678,9 @@ dump_file0 (struct tar_stat_info *st, char const *name, char const *p)
      put in the archive.
 
      This check is omitted if incremental_option is set *and* the
-     requested file is not explicitely listed in the command line. */
+     requested file is not explicitly listed in the command line.  */
 
-  if (!(incremental_option && !is_individual_file (p))
+  if (! (incremental_option && ! top_level)
       && !S_ISDIR (st->stat.st_mode)
       && OLDER_TAR_STAT_TIME (*st, m)
       && (!after_date_option || OLDER_TAR_STAT_TIME (*st, c)))
diff --git a/src/incremen.c b/src/incremen.c
index 628ff29..2b33c5d 100644
--- a/src/incremen.c
+++ b/src/incremen.c
@@ -426,7 +426,6 @@ procdir (const char *name_buffer, struct tar_stat_info *st,
 {
   struct directory *directory;
   struct stat *stat_data = &st->stat;
-  dev_t device = st->parent ? st->parent->stat.st_dev : 0;
   bool nfs = NFS_FILE_STAT (*stat_data);
 
   if ((directory = find_directory (name_buffer)) != NULL)
@@ -540,11 +539,8 @@ procdir (const char *name_buffer, struct tar_stat_info *st,
 	}
     }
 
-  /* If the directory is on another device and --one-file-system was given,
-     omit it... */
-  if (one_file_system_option && device != stat_data->st_dev
-      /* ... except if it was explicitely given in the command line */
-      && !is_individual_file (name_buffer))
+  if (one_file_system_option && st->parent
+      && stat_data->st_dev != st->parent->stat.st_dev)
     /* FIXME:
 	WARNOPT (WARN_XDEV,
 		 (0, 0,
diff --git a/src/names.c b/src/names.c
index 6e214bf..ba4d509 100644
--- a/src/names.c
+++ b/src/names.c
@@ -47,8 +47,6 @@ static char *cached_no_such_gname;
 static uid_t cached_no_such_uid;
 static gid_t cached_no_such_gid;
 
-static void register_individual_file (char const *name);
-
 /* Given UID, find the corresponding UNAME.  */
 void
 uid_to_uname (uid_t uid, char **uname)
@@ -360,8 +358,6 @@ name_next_elt (int change_dirs)
 	{
 	  if (unquote_option)
 	    unquote_string (name_buffer);
-	  if (incremental_option)
-	    register_individual_file (name_buffer);
 	  entry.type = ep->type;
 	  entry.v.name = name_buffer;
 	  return &entry;
@@ -1152,28 +1148,6 @@ excluded_name (char const *name)
   return excluded_file_name (excluded, name + FILE_SYSTEM_PREFIX_LEN (name));
 }
 
-static Hash_table *individual_file_table;
-
-static void
-register_individual_file (char const *name)
-{
-  struct stat st;
-
-  if (deref_stat (name, &st) != 0)
-    return; /* Will be complained about later */
-  if (S_ISDIR (st.st_mode))
-    return;
-
-  hash_string_insert (&individual_file_table, name);
-}
-
-bool
-is_individual_file (char const *name)
-{
-  return hash_string_lookup (individual_file_table, name);
-}
-
-
 
 /* Return the size of the prefix of FILE_NAME that is removed after
    stripping NUM leading file name components.  NUM must be
-- 
1.7.1

From: Paul Eggert <eggert@cs.ucla.edu>
Date: Tue, 23 Nov 2010 01:58:55 +0000 (-0800)
Subject: tests: new test listed04 for --one-file-system --listed-incremental
X-Git-Url: http://git.savannah.gnu.org/gitweb/?p=tar.git;a=commitdiff_plain;h=2a55b4b0373eef2e879408f9df6638bb03e16170

tests: new test listed04 for --one-file-system --listed-incremental

* tests/Makefile.am (TESTSUITE_AT): Add listed04.at.
* tests/listed04.at: New file.
* tests/testsuite.at: Include it.
---

diff --git a/tests/Makefile.am b/tests/Makefile.am
index f289067..7b1e226 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -110,6 +110,7 @@ TESTSUITE_AT = \
  listed01.at\
  listed02.at\
  listed03.at\
+ listed04.at\
  long01.at\
  longv7.at\
  lustar01.at\
diff --git a/tests/listed04.at b/tests/listed04.at
new file mode 100644
index 0000000..239998d
--- /dev/null
+++ b/tests/listed04.at
@@ -0,0 +1,47 @@
+# Process this file with autom4te to create testsuite. -*- Autotest -*-
+
+# Test suite for GNU tar.
+# Copyright (C) 2010 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# This checks for the bug reported by Martin Weigel
+# <http://lists.gnu.org/archive/html/bug-tar/2010-11/msg00071.html>.
+# The test is derived from the ideas in Jean-Louis Martineau's followup email
+# <http://lists.gnu.org/archive/html/bug-tar/2010-11/msg00087.html>.
+
+AT_SETUP([--listed-incremental and --one-file-system])
+AT_KEYWORDS([listed incremental listed04])
+
+AT_TAR_CHECK([
+
+mkdir dir
+echo a >dir/a
+echo b >dir/b
+
+tar --one-file-system -cvf archive.tar -g archive.incr dir || exit
+tar -tf archive.tar || exit
+],
+[0],
+[dir/
+dir/a
+dir/b
+dir/
+dir/a
+dir/b
+],
+[tar: dir: Directory is new
+],[],[],[gnu])
+
+AT_CLEANUP
diff --git a/tests/testsuite.at b/tests/testsuite.at
index db0db3a..e8df868 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -174,6 +174,7 @@ m4_include([incr02.at])
 m4_include([listed01.at])
 m4_include([listed02.at])
 m4_include([listed03.at])
+m4_include([listed04.at])
 m4_include([incr03.at])
 m4_include([incr04.at])
 m4_include([incr05.at])