contrib/dg-cmp-results.sh

   1 #!/bin/bash
   2 # Copyright (C) 2006 Free Software Foundation
   3 #
   4 # Analyze changes in GCC DejaGNU test logs for binutils, gcc, gdb, etc.
   5 # Original version written in 2005 by James Lemke <jwlemke@wasabisystems.com>.
   6 #
   7 # See usage() below.
   8
   9 usage () {
  10     cat <<EOF >&2
  11 Usage:
  12     dg-cmp-results.sh [-v] [-v] [-v] <variant-name> <old-file> <new-file>
  13     <variant-name> names the desired variant, "/" must be written as "\/".
  14     Use the empty string ("") for the first variant in each file.
  15     Output is to stdout.
  16     Non-verbose output is degradation info like PASS->FAIL.
  17     -v adds improvement info like FAIL->PASS.
  18     -v -v adds info like tests that are no longer run.
  19     -v -v -v adds info for tests that have not changed status.
  20     -v -v -v -v is used for debugging.
  21 EOF
  22 }
  23
  24 verbose=0
  25 while test "$1" = "-v"; do
  26     verbose=`expr $verbose + 1`
  27     shift
  28 done
  29
  30 if test $# -ne 3 -o ! -f "$2" -o ! -f "$3"; then
  31     usage
  32     exit 1
  33 fi
  34
  35 # Command differences for various platforms.
  36 case `uname -s` in
  37 Darwin|NetBSD)
  38     E=-E        # sed
  39     ;;
  40 *)
  41     E=-r        # sed
  42     ;;
  43 esac
  44
  45 # sections are identified by separator lines beginning with '\t\t==='.
  46 # section 0 identifies run date, target, and host.
  47 # section 1 and subsequent contain test data for a target variant.
  48 # -skip to /^Running target/ and use that line to identify the variant.
  49 # -subsequent lines contain the result data.  They begin with:
  50 # '(PASS|FAIL|XFAIL|XPASS|UNTESTED|UNSUPPORTED|UNRESOLVED):'
  51 VARIANT="$1"
  52 OFILE="$2"
  53 OBASE=`basename "$2"`
  54 NFILE="$3"
  55 NBASE=`basename "$3"`
  56
  57 echo "dg-cmp-results.sh: Verbosity is ${verbose}, Variant is \"${VARIANT}\""
  58 echo
  59
  60 header="^Running target $VARIANT"
  61
  62 temp=`grep "$header" $OFILE`
  63 if test -z "$temp"; then
  64     echo "Error: variant \"$VARIANT\" not found in $OFILE."
  65     exit 1
  66 fi
  67 temp=`grep "$header" $NFILE`
  68 if test -z "$temp"; then
  69     echo "Error: variant \"$VARIANT\" not found in $NFILE."
  70     exit 1
  71 fi
  72 unset temp
  73
  74 # Copy out the old file's section 0.
  75 echo "Older log file: $OFILE"
  76 sed $E -e '/^[[:space:]]+===/,$d' $OFILE
  77
  78 # Copy out the new file's section 0.
  79 echo "Newer log file: $NFILE"
  80 sed $E -e '/^[[:space:]]+===/,$d' $NFILE
  81
  82 # Create a temporary file from the old file's interesting section.
  83 sed $E -e "1,/$header/d" \
  84   -e '/^[[:space:]]+===/,$d' \
  85   -e '/^[A-Z]+:/!d' \
  86   -e '/^(WARNING|ERROR):/d' \
  87   -e 's/\r$//' \
  88   -e 's/^/O:/' \
  89   $OFILE |
  90   sort -s -t : -k 3b - \
  91   >/tmp/o$$-$OBASE
  92
  93 # Create a temporary file from the new file's interesting section.
  94 sed $E -e "1,/$header/d" \
  95   -e '/^[[:space:]]+===/,$d' \
  96   -e '/^[A-Z]+:/!d' \
  97   -e '/^(WARNING|ERROR):/d' \
  98   -e 's/\r$//' \
  99   -e 's/^/N:/' \
 100   $NFILE |
 101   sort -s -t : -k 3b - \
 102   >/tmp/n$$-$NBASE
 103
 104 # Merge the two files, then compare adjacent lines.
 105 # Comparison is complicated by tests that may be run multiple times.
 106 # If that case, we assume that the order is the same in both files.
 107 cat <<EOF >compare-$$.awk
 108 BEGIN {
 109     FS = ":"
 110     queue1 = 1; queueN = 0; status[queue1] = ""; name[queue1] = ""
 111     verbose = verbose + 0       # Make sure it's defined.
 112 }
 113
 114 # FIFO circular queue
 115 function push(st, nm) {
 116     queueN += 1; status[queueN] = st; name[queueN] = nm
 117 }
 118 function peek() {
 119     result = 0
 120     if (queueN >= queue1) result = queue1
 121     return result
 122 }
 123 function drop() {
 124     queue1 += 1
 125     if (queue1 > queueN) { queue1 = 1; queueN = 0; }
 126 }
 127
 128 function compare(st, nm) {
 129     old = peek()
 130     if (old == 0) {
 131         # This new test wasn't run last time.
 132         if (verbose >= 2) printf("NA->%s:%s\n", st, nm)
 133     }
 134     else {
 135         # Compare this new test to the first queued old one.
 136         if (verbose >= 4) {
 137             printf("Comparing two lines:\n O:%s:%s\n N:%s:%s\n",
 138              status[old], name[old], st, nm)
 139         }
 140         if (name[old] != nm) {
 141             # The old test wasn't run this time and
 142             # the new test wasn't run last time.
 143             if (verbose >= 2) {
 144                 printf("%s->NA:%s\n", status[old], name[old])
 145                 if (nm != "") printf("NA->%s:%s\n", st, nm)
 146             }
 147             drop()
 148         }
 149         else {
 150             notable = 0
 151             if (status[old] == st) {
 152                 # Status of this test has not changed.
 153                 if (verbose >= 3) printf("%s:%s\n", st, nm)
 154             }
 155             else if(status[old] == "PASS" && st == "XFAIL") {
 156                 if (verbose >= 1) notable = 1
 157             }
 158             else if(status[old] == "PASS" || st == "FAIL") {
 159                 # Test did pass but doesn't now
 160                 # or didn't fail but does now.
 161                 notable = 1
 162             }
 163             else if(st == "PASS") {
 164                 # Test didn't pass but does now.
 165                 if (verbose >= 1) notable = 1
 166             }
 167             else if(verbose >= 2) {
 168                 # Miscellaneous status change.
 169                 notable = 1
 170             }
 171             if (notable > 0) printf("%s->%s:%s\n", status[old], st, nm)
 172             drop()
 173         }
 174     }
 175 }
 176
 177 /^O:/ {
 178     while (old = peek()) {
 179         if (name[old] == \$3) break;
 180         # The queued test is no longer run.
 181         compare("", "");
 182     }
 183     # Save this test for later comparison.
 184     push(\$2, \$3)
 185 }
 186
 187 /^N:/ {
 188     compare(\$2, \$3)
 189 }
 190
 191 END {
 192     while (old = peek()) compare("", "")
 193 }
 194 EOF
 195 sort -m -s -t : -k 3b /tmp/o$$-$OBASE /tmp/n$$-$NBASE |
 196  awk -v verbose=$verbose -f compare-$$.awk /dev/stdin
 197
 198 # Delete the temporary files.
 199 rm -f compare-$$.awk /tmp/o$$-$OBASE /tmp/n$$-$NBASE
 200
 201 exit 0