commit - c38046f2c8825d2f3be5229c7feb37a505e96fd6
commit + 46b59c355f85536cc7608f5a726f50c21d8e5bfc
blob - 2b1bf087080c157f7c417e0c8ca9f9b2814b5df5
blob + c43ea87f0e61935c280fe7fb43413ae205963d3c
--- exercise
+++ exercise
@@ -473,6 +473,13 @@ proc main {argc argv} {
     }
     set argc [llength $argv]
 
+    # more environment variables
+    if {[info exists env(VERBOSE)] && $env(VERBOSE) ne ""} {
+        if {[string is false $env(VERBOSE)]}    {set env(VERBOSE) 0}
+        if {![string is integer $env(VERBOSE)]} {set env(VERBOSE) 1}
+        if {$env(VERBOSE) > $opts(-v)}          {set opts(-v) $env(VERBOSE)}
+    }
+
     # change into workdir if requested with -C
     if {[info exists opts(-C)]} {cd $opts(-C)}
 
blob - 8c973ee467abc39802e149a9abc5ffbc17f51472
blob + 7d8649868fc32131e540edc0d12a89ba318348e2
--- exercise.1
+++ exercise.1
@@ -199,6 +199,17 @@ If a relative path is provided,
 it is interpreted after any
 .Fl C
 option takes effect.
+.It Ev VERBOSE
+If set to a positive integer,
+requests a verbosity level corresponding to an equal number of
+.Fl v
+options.
+If both
+.Fl v
+and
+.Ev VERBOSE
+are used,
+the higher level takes precedence.
 .El
 .
 .Sh EXIT STATUS
blob - /dev/null
blob + beeccea84e4874eb065284c742b2ee60890eb618 (mode 755)
--- /dev/null
+++ tests/exercise/env/VERBOSE.t
@@ -0,0 +1,64 @@
+#!/bin/sh
+
+set -e
+
+
+env="VERBOSE=1" \
+./assert-exercise $0 \
+        "> $0.tst\nrun 1  ok 1  fail 0  error 0\n" \
+        '' \
+	<<EOF
+#!/bin/sh
+    exit 0
+EOF
+
+env="VERBOSE=1" \
+./assert-exercise $0 \
+        "> $0.tst\n" \
+        '' \
+	-q <<EOF
+#!/bin/sh
+    exit 0
+EOF
+
+env="VERBOSE=2" \
+./assert-exercise $0 \
+        "> $0.tst\n> > hallo welt\nrun 1  ok 1  fail 0  error 0\n" \
+        '' \
+	<<EOF
+#!/bin/sh
+    echo hallo welt
+EOF
+
+env="VERBOSE=2" \
+./assert-exercise $0 \
+        "> $0.tst\n> > hallo welt\nrun 1  ok 1  fail 0  error 0\n" \
+        '' \
+	-v <<EOF
+#!/bin/sh
+    echo hallo welt
+EOF
+
+env="VERBOSE=1" \
+./assert-exercise $0 \
+        "> $0.tst\n> > hallo welt\nrun 1  ok 1  fail 0  error 0\n" \
+        '' \
+	-vv <<EOF
+#!/bin/sh
+    echo hallo welt
+EOF
+
+env="VERBOSE=1" \
+tst=$0.ts \
+./assert-exercise $0 \
+        "> $0.ts\n> > test1\n> > test2\nrun 2  ok 2  fail 0  error 0\n" \
+        '' \
+	<<EOF
+#!/bin/sh
+    echo "run 2  ok 0  fail 0  error 0"
+    echo "> test1"
+    echo "run 2  ok 1  fail 0  error 0"
+    echo "> test2"
+    echo "run 2  ok 2  fail 0  error 0"
+    test "\$VERBOSE" = "1"
+EOF
blob - 6bb2d48c8644b823b71bddc72cc52af2181624b3
blob + edf5472e49e45477b8917867af67ef64b6196d2f
--- tests/helpers/assert-exercise
+++ tests/helpers/assert-exercise
@@ -30,7 +30,7 @@ chmod +x $tst
 
 # execute & compare
 shift 3
-unset EXERCISEDIR				# clean environment
+unset EXERCISEDIR VERBOSE			# clean environment
 env $env $exe "$@" "$pth" 1>$out 2>$err
 test "$?" = "127" && exit 127
 diff -u $experr $err >&2 && \