regenerate test output on regress.t -G option

[barcat.git] / t / regress.t

diff --git a/t/regress.t b/t/regress.t
index 5daf496eb2a91b1ee916c16c8744fe9c3b2eaaf5..1463ce308512672f05197f38014235d0a5a3b157 100755 (executable)
--- a/t/regress.t
+++ b/t/regress.t
@@ -6,6 +6,15 @@ test_count=0
 
 COLUMNS=40
 diffcmd='diff --unchanged-line-format= --old-line-format=<%L --new-line-format=>%L'
+regenerate=
+
+for option in "$@"
+do
+       case "$option" in
+       -G) regenerate=1 && shift;;
+       -*) echo "Usage: $0 [-G] [<files>...]"; exit 64;;
+       esac
+done
 
 for candidate in ${@:-t*.in}
 do
@@ -17,7 +26,19 @@ do
        cmd="barcat $file.in"
        case "$name" in *\ -*) cmd="$cmd -${name#* -}";; esac
 
-       $cmd 2>&1 | $diffcmd "$file.out" - || printf 'not '
+       if test -n "$regenerate"
+       then
+               if test -e $file.out
+               then
+                       echo "ok $test_count # skip existing $file.out"
+                       continue
+               fi
+               $cmd >$file.out 2>&1
+       else
+               $cmd 2>&1 | $diffcmd "$file.out" -
+       fi
+
+       test 0 = $? || printf 'not '
        echo "ok $test_count - $name"
 done