contrib/dg-cmp-results.sh

   1 #!/bin/bash
   2 # Copyright (C) 2006, 2008 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 ; then
  31     usage
  32     exit 1
  33 fi
  34
  35 if test ! -f "$2"; then
  36     echo "unable to open $2" >&2
  37     exit 1
  38 fi
  39
  40 if test ! -f "$3"; then
  41     echo "unable to open $3" >&2
  42     exit 1
  43 fi
  44
  45 # Command differences for various platforms.
  46 case `uname -s` in
  47 Darwin|NetBSD)
  48     E=-E        # sed
  49     ;;
  50 *)
  51     E=-r        # sed
  52     ;;
  53 esac
  54
  55 # sections are identified by separator lines beginning with '\t\t==='.
  56 # section 0 identifies run date, target, and host.
  57 # section 1 and subsequent contain test data for a target variant.
  58 # -skip to /^Running target/ and use that line to identify the variant.
  59 # -subsequent lines contain the result data.  They begin with:
  60 # '(PASS|FAIL|XFAIL|XPASS|UNTESTED|UNSUPPORTED|UNRESOLVED):'
  61 VARIANT="$1"
  62 OFILE="$2"
  63 OBASE=`basename "$2"`
  64 NFILE="$3"
  65 NBASE=`basename "$3"`
  66
  67 echo "dg-cmp-results.sh: Verbosity is ${verbose}, Variant is \"${VARIANT}\""
  68 echo
  69
  70 header="^Running target $VARIANT"
  71
  72 temp=`grep "$header" $OFILE`
  73 if test -z "$temp"; then
  74     echo "Error: variant \"$VARIANT\" not found in $OFILE."
  75     exit 1
  76 fi
  77 temp=`grep "$header" $NFILE`
  78 if test -z "$temp"; then
  79     echo "Error: variant \"$VARIANT\" not found in $NFILE."
  80     exit 1
  81 fi
  82 unset temp
  83
  84 # Copy out the old file's section 0.
  85 echo "Older log file: $OFILE"
  86 sed $E -e '/^[[:space:]]+===/,$d' $OFILE
  87
  88 # Copy out the new file's section 0.
  89 echo "Newer log file: $NFILE"
  90 sed $E -e '/^[[:space:]]+===/,$d' $NFILE
  91
  92 # Create a temporary file from the old file's interesting section.
  93 sed $E -e "1,/$header/d" \
  94   -e '/^[[:space:]]+===/,$d' \
  95   -e '/^[A-Z]+:/!d' \
  96   -e '/^(WARNING|ERROR):/d' \
  97   -e 's/\r$//' \
  98   -e 's/^/O:/' \
  99   $OFILE |
 100   sort -s -t : -k 3b - \
 101   >/tmp/o$$-$OBASE
 102
 103 # Create a temporary file from the new file's interesting section.
 104 sed $E -e "1,/$header/d" \
 105   -e '/^[[:space:]]+===/,$d' \
 106   -e '/^[A-Z]+:/!d' \
 107   -e '/^(WARNING|ERROR):/d' \
 108   -e 's/\r$//' \
 109   -e 's/^/N:/' \
 110   $NFILE |
 111   sort -s -t : -k 3b - \
 112   >/tmp/n$$-$NBASE
 113
 114 # Merge the two files, then compare adjacent lines.
 115 # Comparison is complicated by tests that may be run multiple times.
 116 # If that case, we assume that the order is the same in both files.
 117 cat <<EOF >compare-$$.awk
 118 BEGIN {
 119     FS = ":"
 120     queue1 = 1; queueN = 0; status[queue1] = ""; name[queue1] = ""
 121     verbose = verbose + 0       # Make sure it's defined.
 122 }
 123
 124 # FIFO circular queue
 125 function push(st, nm) {
 126     queueN += 1; status[queueN] = st; name[queueN] = nm
 127 }
 128 function peek() {
 129     result = 0
 130     if (queueN >= queue1) result = queue1
 131     return result
 132 }
 133 function drop() {
 134     queue1 += 1
 135     if (queue1 > queueN) { queue1 = 1; queueN = 0; }
 136 }
 137
 138 function compare(st, nm) {
 139     old = peek()
 140     if (old == 0) {
 141         # This new test wasn't run last time.
 142         if (verbose >= 2) printf("NA->%s:%s\n", st, nm)
 143     }
 144     else {
 145         # Compare this new test to the first queued old one.
 146         if (verbose >= 4) {
 147             printf("Comparing two lines:\n O:%s:%s\n N:%s:%s\n",
 148              status[old], name[old], st, nm)
 149         }
 150         if (name[old] != nm) {
 151             # The old test wasn't run this time and
 152             # the new test wasn't run last time.
 153             if (verbose >= 2) {
 154                 printf("%s->NA:%s\n", status[old], name[old])
 155                 if (nm != "") printf("NA->%s:%s\n", st, nm)
 156             }
 157             drop()
 158         }
 159         else {
 160             notable = 0
 161             if (status[old] == st) {
 162                 # Status of this test has not changed.
 163                 if (verbose >= 3) printf("%s:%s\n", st, nm)
 164             }
 165             else if(status[old] == "PASS" && st == "XFAIL") {
 166                 if (verbose >= 1) notable = 1
 167             }
 168             else if(status[old] == "PASS" || st == "FAIL") {
 169                 # Test did pass but doesn't now
 170                 # or didn't fail but does now.
 171                 notable = 1
 172             }
 173             else if(st == "PASS") {
 174                 # Test didn't pass but does now.
 175                 if (verbose >= 1) notable = 1
 176             }
 177             else if(verbose >= 2) {
 178                 # Miscellaneous status change.
 179                 notable = 1
 180             }
 181             if (notable > 0) printf("%s->%s:%s\n", status[old], st, nm)
 182             drop()
 183         }
 184     }
 185 }
 186
 187 /^O:/ {
 188     while (old = peek()) {
 189         if (name[old] == \$3) break;
 190         # The queued test is no longer run.
 191         compare("", "");
 192     }
 193     # Save this test for later comparison.
 194     push(\$2, \$3)
 195 }
 196
 197 /^N:/ {
 198     compare(\$2, \$3)
 199 }
 200
 201 END {
 202     while (old = peek()) compare("", "")
 203 }
 204 EOF
 205 sort -m -s -t : -k 3b /tmp/o$$-$OBASE /tmp/n$$-$NBASE |
 206  awk -v verbose=$verbose -f compare-$$.awk /dev/stdin
 207
 208 # Delete the temporary files.
 209 rm -f compare-$$.awk /tmp/o$$-$OBASE /tmp/n$$-$NBASE
 210
 211 exit 0