#!/bin/bash # ts 2011.06.27 # Test the correct handling of hardlinks by xorriso options # -update_r , -hardlinks perform_update , and -extract export prog=$(basename "$0") export xorriso=xorriso export workdir=./tmp/"$prog".result export image_file="$workdir"/xorriso_hardlinks.iso export on_disk="$workdir"/xorriso_hardlinks_test_dir export in_iso="" export copy_on_disk="$workdir"/xorriso_hardlinks_copy_dir export keep=0 export failure=0 export next_is_xorriso=0 export next_is_rc=0 export bad=0 export report_about="-report_about UPDATE" config_by_var() { # This is called once before option interpretation, and once for each # option -rc. # Variables get set to empty content to keep them from being applied # more than once and thus overriding settings of higher precedence. # >>> The short names are not good. # >>> Environment variables should have a common prefix. Like RELENG_ # >>> In general, the names should be a bit more expressive. # >>> Like RELENG_XORRISO test -n "$XOR" && xorriso="$XOR" && XOR= test -n "$RELENG_XORRISO" && xorriso="$RELENG_XORRISO" && RELENG_XORRISO= test -n "$IMG" && image_file="$IMG" && IMG= test -n "$RELENG_TMPIMAGE" && image_file="$RELENG_TMPIMAGE" \ && RELENG_TMPIMAGE= # This is not $DIR, which would exist before and after the test, # but a temporary directory which may not exist before. test -n "$RELENG_TMPDIR" && on_disk="$RELENG_TMPDIR" && RELENG_TMPDIR= test -n "$RELENG_ISODIR" && in_iso="$RELENG_ISODIR" && RELENG_ISODIR= test -n "$RELENG_TMPCOPYDIR" && copy_on_disk="$RELENG_TMPCOPYDIR" \ && RELENG_TMPCOPYDIR= } clean_up() { if test "$keep" = 1 then echo "=== Kept test area because of option -keep" >&2 echo "$on_disk" "$copy_on_disk" "$image_file" "$workdir" >&2 else echo "=== Removing test area" >&2 rm -r "$on_disk" "$copy_on_disk" "$image_file" rm -r "$workdir" fi } # Setup # Interpret a default configuration file here, if the test has one. # This one has none. # >>> Best would be if the configuration file would not override env variables. # Process env variables and default configfile variables together config_by_var # Now interpret program arguments and possibly given config files for i in "$@" do if test "$next_is_xorriso" = 1 then xorriso="$i" next_is_xorriso=0 elif test "$next_is_rc" = 1 then # >>> This looks darn dangerous. We need a trustworthy config interpreter. # >>> http://www.netjeff.com/humor/item.cgi?file=ShootInFoot-OS . "$i" config_by_var next_is_rc=0 elif test x"$i" = x"-rc" then next_is_rc=1 elif test x"$i" = x"-keep" then keep=1 elif test x"$i" = x"-cleanup" then keep=0 clean_up exit 0 elif test x"$i" = x"-xorriso" then next_is_xorriso=1 elif test x"$i" = x"-v" then report_about="-report_about ALL" else echo "Usage: $0 [-rc FILE] [-keep] [-cleanup] [-xorriso PATH] [-v]" >&2 exit 2 fi done test -z "$in_iso" && in_iso="$on_disk" if test -d ./tmp then dummy=dummy else echo "=== TEST ENVIRONMENT ERROR: $prog : No ./tmp directory existing" >&2 echo "FAIL : $prog : Test environment error : No ./tmp directory" exit 3 fi if test -e "$workdir" then echo "=== TEST ENVIRONMENT ERROR: $prog : Existing work directory:" >&2 ls -ld "$workdir" >&2 bad=1 fi if test -e "$image_file" then echo "=== TEST ENVIRONMENT ERROR: $prog : Existing image_file target:" >&2 ls -ld "$image_file" >&2 bad=1 fi if test -e "$on_disk" then echo "=== TEST ENVIRONMENT ERROR: $prog : Existing on_disk target:" >&2 ls -ld "$on_disk" >&2 bad=1 fi if test -e "$copy_on_disk" then echo "=== TEST ENVIRONMENT ERROR: $prog : Existing copy_on_disk target:" >&2 ls -ld "$copy_on_disk" >&2 bad=1 fi if test "$bad" = 1 then echo "FAIL : $prog : Test environment error : Existing work files" exit 3 fi bad=0 mkdir "$workdir" || bad=1 mkdir "$on_disk" || bad=1 if test "$bad" = 1 then echo "FAIL : $prog : Test environment error : Cannot make directories" exit 3 fi echo "=== Setting up $on_disk with several hardlinks" >&2 echo test_content >"$on_disk"/file_1 || exit 1 echo test_content >"$on_disk"/file_2 || exit 1 ln "$on_disk"/file_1 "$on_disk"/file_1_link_a || exit 1 ln "$on_disk"/file_1 "$on_disk"/file_1_link_b || exit 1 ln "$on_disk"/file_2 "$on_disk"/file_2_link_a || exit 1 ls -l "$on_disk"/* echo "=== Producing simple image" >&2 "$xorriso" \ $report_about \ -version \ -for_backup \ -padding 0 \ -outdev "$image_file" \ -update_r "$on_disk" "$in_iso" \ -hardlinks perform_update echo "=== Copying from image to temporary disk tree" >&2 "$xorriso" \ $report_about \ -for_backup \ -indev "$image_file" \ -osirrox on \ -find "$in_iso" -exec lsdl -- \ -extract "$in_iso" "$copy_on_disk" ## For testing the test: Let it fail deliberately # rm "$copy_on_disk"/file_1_link_b echo "=== Comparing original disk tree and temporary one" >&2 diff -r "$on_disk" "$copy_on_disk" if test "$?" -ne 0 then echo "=== WRONG: diff -r $on_disk $copy_on_disk reports differences" >&2 echo "FAIL : $prog : diff -r reports differences" failure=1 else echo "=== OK" >&2 fi echo "=== Checking for hardlinks being siblings" >&2 ls -l "$copy_on_disk"/* x=$(echo $(ls -l "$copy_on_disk"/* | awk '{print $2}')) expected="3 3 3 2 2" if test x"$x" = x"$expected" then echo "=== OK" >&2 else echo "=== WRONG: Link count of extracted files is not as expected." >&2 echo "=== Expected: $expected" >&2 echo "=== Got : $x" >&2 echo "FAIL : $prog : Link count of extracted files is not as expected." failure=1 fi clean_up # Report result echo if test "$failure" = 1 then echo "======== $prog :" 'FAILED' exit 1 else echo "======== $prog :" "Passed" echo fi exit 0