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Merge pull request #893 from MarcWeber/submit/storebackup
backup tools bup, storeBackup: implement sanity check
This commit is contained in:
Evgeny Egorochkin
commit
18ce7edd20
@ -1,6 +1,9 @@
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{ stdenv, fetchgit, python, pyxattr, pylibacl, setuptools, fuse, git, perl, pandoc, makeWrapper
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, diffutils, writeTextFile, rsync
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, par2cmdline, par2Support ? false }:
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# keep in mind you cannot prune older revisions yet! (2013-06)
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assert par2Support -> par2cmdline != null;
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with stdenv.lib;
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@ -10,12 +13,14 @@ stdenv.mkDerivation {
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src = fetchgit {
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url = "https://github.com/bup/bup.git";
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rev = "96c6fa2a70425fff1e73d2e0945f8e242411ab58";
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sha256 = "0d9hgyh1g5qcpdvnqv3a5zy67x79yx9qx557rxrnxyzqckp9v75n";
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rev = "98a8e2ebb775386cb7e66b1953df46cdbd4b4bd3";
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sha256 = "ab01c70f0caf993c0c05ec3a1008b5940b433bf2f7bd4e9b995d85e81958c1b7";
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};
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buildInputs = [ python git ];
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nativeBuildInputs = [ pandoc perl makeWrapper ];
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nativeBuildInputs = [ pandoc perl makeWrapper rsync ];
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enableParallelBuilding = true;
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patchPhase = ''
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substituteInPlace Makefile --replace "-Werror" ""
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@ -24,6 +29,12 @@ stdenv.mkDerivation {
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substituteInPlace $f --replace "/usr/bin/env python" "${python}/bin/python"
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done
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substituteInPlace Makefile --replace "./format-subst.pl" "perl ./format-subst.pl"
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for t in t/*.sh t/configure-sampledata t/compare-trees; do
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substituteInPlace $t --replace "/usr/bin/env bash" "$(type -p bash)"
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done
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substituteInPlace wvtestrun --replace "/usr/bin/env perl" "${perl}/bin/perl"
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substituteInPlace t/test.sh --replace "/bin/pwd" "$(type -P pwd)"
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'' + optionalString par2Support ''
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substituteInPlace cmd/fsck-cmd.py --replace "['par2'" "['${par2cmdline}/bin/par2'"
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'';
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@ -40,7 +51,33 @@ stdenv.mkDerivation {
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postInstall = optionalString (elem stdenv.system platforms.linux) ''
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wrapProgram $out/bin/bup --prefix PYTHONPATH : \
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${stdenv.lib.concatStringsSep ":"
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(map (path: "$(toPythonPath ${path})") [ pyxattr pylibacl setuptools fuse ])}
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(map (path: "$(toPythonPath ${path})") [ pyxattr pylibacl setuptools fuse python.modules.readline ])}
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## test it
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make test
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# if make test passes the following probably passes, too
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backup_init(){
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export BUP_DIR=$TMP/bup
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PATH=$out/bin:$PATH
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bup init
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}
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backup_make(){
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( cd "$1"; tar -cvf - .) | bup split -n backup
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}
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backup_restore_latest(){
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bup join backup | ( cd "$1"; tar -xf - )
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}
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backup_verify_integrity_latest(){
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bup fsck
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}
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backup_verify_latest(){
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# maybe closest would be to mount or use the FTP like server ..
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true
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}
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. ${import ../test-case.nix { inherit diffutils writeTextFile; }}
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backup_test backup 100M
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'';
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meta = {
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@ -1,4 +1,4 @@
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{stdenv, which, coreutils, perl, fetchurl, perlPackages, makeWrapper, diffutils , writeScriptBin, bzip2}:
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{stdenv, which, coreutils, perl, fetchurl, perlPackages, makeWrapper, diffutils , writeScriptBin, writeTextFile, bzip2}:
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# quick usage:
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# storeBackup.pl --sourceDir /home/user --backupDir /tmp/my_backup_destination
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@ -48,56 +48,31 @@ stdenv.mkDerivation {
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PATH=$PATH:${dummyMount}/bin
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{ # simple sanity test, test backup/restore of simple store paths
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## test it
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backup_init(){
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mkdir backup
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backupRestore(){
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source="$2"
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echo =========
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echo RUNNING TEST "$1" source: "$source"
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mkdir restored
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$out/bin/storeBackup.pl --sourceDir "$source" --backupDir backup
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latestBackup=backup/default/$(ls -1 backup/default | sort | tail -n 1)
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$out/bin/storeBackupRecover.pl -b "$latestBackup" -t restored -r /
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${diffutils}/bin/diff -r "$source" restored
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# storeBackupCheckSource should return 0
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$out/bin/storeBackupCheckSource.pl -s "$source" -b "$latestBackup"
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# storeBackupCheckSource should return not 0 when using different source
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! $out/bin/storeBackupCheckSource.pl -s $TMP -b "$latestBackup"
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# storeBackupCheckBackup should return 0
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$out/bin/storeBackupCheckBackup.pl -c "$latestBackup"
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chmod -R +w restored
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rm -fr restored
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}
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testDir=$TMP/testDir
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mkdir $testDir
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echo X > $testDir/X
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ln -s ./X $testDir/Y
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backupRestore 'test 1: backup, restore' $testDir
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# test huge blocks, according to docs files bigger than 100MB get split
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# into pieces
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dd if=/dev/urandom bs=100M of=block-1 count=1
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dd if=/dev/urandom bs=100M of=block-2 count=1
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cat block-1 block-2 > $testDir/block
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backupRestore 'test 1 with huge block' $testDir
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cat block-2 block-1 > $testDir/block
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backupRestore 'test 1 with huge block reversed' $testDir
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backupRestore 'test 2: backup, restore' $out
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backupRestore 'test 3: backup, restore' $out
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backupRestore 'test 4: backup diffutils to same backup locations, restore' ${diffutils}
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}
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'';
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latestBackup(){
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echo backup/default/$(ls -1 backup/default | sort | tail -n 1)
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}
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backup_make(){
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# $1=source
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$out/bin/storeBackup.pl --sourceDir "$1" --backupDir "backup"
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}
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backup_restore_latest(){
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$out/bin/storeBackupRecover.pl -b "$(latestBackup)" -t "$1" -r /
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}
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backup_verify_integrity_latest(){
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$out/bin/storeBackupCheckBackup.pl -c "$(latestBackup)"
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}
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backup_verify_latest(){
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$out/bin/storeBackupCheckSource.pl -s "$1" -b "$(latestBackup)"
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}
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. ${import ../test-case.nix { inherit diffutils writeTextFile; }}
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backup_test backup 100M
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'';
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meta = {
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description = "Storebackup is a backup suite that stores files on other disks";
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105
pkgs/tools/backup/test-case.nix
Normal file
105
pkgs/tools/backup/test-case.nix
Normal file
@ -0,0 +1,105 @@
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# while this test suite is not perfect it will at least provide some guarantees
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# that basic features should be fine ..
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/*
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In order to use the suite you have to define the following functions
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backup_init
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backup_make source
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backup_restore_latest target
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backup_verify_integrity_latest
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backup_verify_latest source
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use true if a backup system does not implement a feature
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TODO: add test cases for all backup solutions shipping with nixpkgs
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This does not replace the test suites shipping with the backup solutions!
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*/
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{diffutils, writeTextFile}:
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writeTextFile {
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name = "backup-test-case";
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text = ''
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backup_run_tests_on_source(){
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local test="$1"
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local source="$2"
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local backup="$3"
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echo =========
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echo RUNNING TEST "$test" source: "$source"
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mkdir restored
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backup_make "$source" backup
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{ # verify that restoring works
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backup_restore_latest restored
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${diffutils}/bin/diff -r "$source" restored
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# diff does not make a difference for symlinks, so list them and compare
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# lists
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( cd "$source"; find /var/www/ -type l) | sort > 1
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( cd "$restored"; find /var/www/ -type l) | sort > 2
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diff 1 2
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}
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{ # verify that backup tool thinks so, too:
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backup_verify_latest "$source" backup
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# using different source verification must fail:
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! backup_verify_latest "$TMP" backup
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}
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backup_verify_integrity_latest backup
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chmod -R +w restored
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rm -fr restored
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}
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backup_test(){
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set -x
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# allow getting run time to compare backup solutions
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echo "START $(date)"
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local block_size="$2"
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backup_init
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if [ -z "$SKIP_SYMLINK_TEST" ]; then
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{ # create first test case directory contentents
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testDir=$TMP/test-1a
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mkdir $testDir
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echo X > $testDir/X
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ln -s ./X $testDir/Y
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}
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backup_run_tests_on_source 'test 1a: backup, restore' "$testDir" "$backup"
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fi
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if [ -z "$SKIP_EMPTY_DIR_TEST" ]; then
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{ # create first test case directory contentents
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testDir=$TMP/test-1b
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mkdir -p $testDir/empty-directory
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}
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backup_run_tests_on_source 'test 1b: backup, restore' "$testDir" "$backup"
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fi
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testDir=$TMP/test-huge-blocks
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mkdir $testDir
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# test huge blocks, according to docs files bigger than 100MB get split
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# into pieces
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dd if=/dev/urandom bs=1M of=block-0 count=20
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dd if=/dev/urandom bs="$block_size" of=block-1 count=1
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dd if=/dev/urandom bs="$block_size" of=block-2 count=1
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cat block-0 block-0 block-0 block-1 block-2 block-0 block-0 block-0 > $testDir/block
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backup_run_tests_on_source 'test 1 with huge block' $testDir
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cat block-2 block-0 block-0 block-1 > $testDir/block
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backup_run_tests_on_source 'test 1 with huge block reversed' $testDir
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backup_run_tests_on_source 'test 2: backup, restore' $out
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backup_run_tests_on_source 'test 3: backup, restore' $out
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backup_run_tests_on_source 'test 4: backup diffutils to same backup locations, restore' ${diffutils}
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echo "STOP $(date)"
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}
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'';
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}
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