Package: zbackup
Version: 1.5-4
Severity: normal
Tags: patch
X-Debbugs-Cc: [email protected]
Dear Maintainer,
I noticed that zbackup emits lots of debug output.
Example command sequence:
$ zbackup --silent --non-encrypted init /tmp/testrepo
$ echo "OK" | zbackup --silent --non-encrypted backup /tmp/testrepo/backups/test
$ zbackup --silent --non-encrypted restore /tmp/testrepo/backups/test | cat
Expected output:
OK
Actual output:
[DEBUG] at main( zbackup.cc:19 ): ZBackup version 1.4
[DEBUG] at Config( config.cc:182 ): 6Config is instantiated and initialized
with default values
[DEBUG] at Config( config.cc:198 ): 6Config is instantiated and initialized
with supplied ConfigInfo
[DEBUG] at Config( config.cc:182 ): 6Config is instantiated and initialized
with default values
[DEBUG] at Config( config.cc:182 ): 6Config is instantiated and initialized
with default values
[DEBUG] at save( storage_info_file.cc:20 ): Saving storage info...
[DEBUG] at OutputStream( encrypted_file.cc:244 ): Saving /tmp/testrepo/info,
hasKey: false
[DEBUG] at save( storage_info_file.cc:57 ): Saving extended storage info,
hasKey: false
[DEBUG] at OutputStream( encrypted_file.cc:244 ): Saving
/tmp/testrepo/info_extended, hasKey: false
[DEBUG] at main( zbackup.cc:19 ): ZBackup version 1.4
[DEBUG] at Config( config.cc:182 ): 6Config is instantiated and initialized
with default values
[DEBUG] at load( storage_info_file.cc:33 ): Loading storage info...
[DEBUG] at InputStream( encrypted_file.cc:26 ): Loading /tmp/testrepo/info,
hasKey: false
[DEBUG] at load( storage_info_file.cc:74 ): Loading extended storage info,
hasKey: false
[DEBUG] at InputStream( encrypted_file.cc:26 ): Loading
/tmp/testrepo/info_extended, hasKey: false
[DEBUG] at ChunkIndex( chunk_index.cc:115 ): 10ChunkIndex for
/tmp/testrepo/index is instantiated and initialized, hasKey: false
[DEBUG] at Config( config.cc:209 ): 6Config is instantiated and initialized
with supplied values
[DEBUG] at ZBackupBase( zbackup_base.cc:98 ): 11ZBackupBase for /tmp/testrepo
is instantiated and initialized
[DEBUG] at backupFromFileHandle( zutils.cc:112 ): No more input from stdin
[DEBUG] at finish( backup_creator.cc:149 ): At finish: 0, 3
[DEBUG] at finish( backup_creator.cc:149 ): At finish: 0, 6
[DEBUG] at backupFromFileHandle( zutils.cc:168 ): Iterations: 0
[DEBUG] at OutputStream( encrypted_file.cc:244 ): Saving
/tmp/testrepo/tmp/gqigpe, hasKey: false
[DEBUG] at main( zbackup.cc:19 ): ZBackup version 1.4
[DEBUG] at Config( config.cc:182 ): 6Config is instantiated and initialized
with default values
[DEBUG] at load( storage_info_file.cc:33 ): Loading storage info...
[DEBUG] at InputStream( encrypted_file.cc:26 ): Loading /tmp/testrepo/info,
hasKey: false
[DEBUG] at load( storage_info_file.cc:74 ): Loading extended storage info,
hasKey: false
[DEBUG] at InputStream( encrypted_file.cc:26 ): Loading
/tmp/testrepo/info_extended, hasKey: false
[DEBUG] at ChunkIndex( chunk_index.cc:115 ): 10ChunkIndex for
/tmp/testrepo/index is instantiated and initialized, hasKey: false
[DEBUG] at Config( config.cc:209 ): 6Config is instantiated and initialized
with supplied values
[DEBUG] at ZBackupBase( zbackup_base.cc:98 ): 11ZBackupBase for /tmp/testrepo
is instantiated and initialized
[DEBUG] at InputStream( encrypted_file.cc:26 ): Loading
/tmp/testrepo/backups/test, hasKey: false
OK
Looking into the source, the debug output happens in debug.hh, line 18 - unless
NDEBUG is defined.
This is not the case when building with the default configuration options.
The most straightforward-looking fix: Explicitly select the build type as
"Release".
This will set the compiler flags -O3 and -NDEBUG.
I am attaching a patch for debian/rules to do that.
When building with the patch, zbackup no longer emits debug output.
-- System Information:
Debian Release: forky/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 6.17.13+deb14-amd64 (SMP w/2 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages zbackup depends on:
ii libc6 2.42-7
ii libgcc-s1 15.2.0-12
ii liblzma5 5.8.2-1
ii liblzo2-2 2.10-3+b1
ii libprotobuf32t64 3.21.12-14+b1
ii libssl3t64 3.5.4-1
ii libstdc++6 15.2.0-12
ii zlib1g 1:1.3.dfsg+really1.3.1-1+b2
zbackup recommends no packages.
zbackup suggests no packages.
-- no debconf information
--- ../zbackup-1.5.orig/debian/rules 2021-11-07 10:58:21.000000000 +0000
+++ debian/rules 2026-01-13 07:55:19.563230557 +0000
@@ -7,6 +7,7 @@
override_dh_auto_configure:
dh_auto_configure -O--buildsystem=cmake -- \
+ -DCMAKE_BUILD_TYPE='Release' \
-DCMAKE_CXX_STANDARD='11'
override_dh_auto_build:
