diff options
| -rwxr-xr-x | contrib/maxlen.bash | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/contrib/maxlen.bash b/contrib/maxlen.bash index a4aa082..14d40da 100755 --- a/contrib/maxlen.bash +++ b/contrib/maxlen.bash @@ -13,6 +13,13 @@ if [[ $# -ne 1 || $1 == -* ]]; then exit 1 fi +# Only show live progress if connected to a termial +# https://stackoverflow.com/a/911213/1380267 +INTERACTIVE=0 +if [[ -t 1 ]] ; then + INTERACTIVE=1 +fi + cd "$1" echo "Testing $PWD" @@ -22,7 +29,7 @@ NAME="" while true ; do NEXT="${NAME}x" if [[ -e $NEXT ]]; then - echo "error: file $NEXT already exists" + echo "error: file $PWD/$NEXT already exists" exit 1 fi touch $NEXT 2> /dev/null || break @@ -44,7 +51,10 @@ MAX_DIRNAME=${#NAME} echo "${#NAME}" for CHARS_PER_SUBDIR in 1 10 100 $MAX_DIRNAME ; do - echo -n " Maximum path length with $(printf %3d $CHARS_PER_SUBDIR) chars per subdir: " + echo -n " Maximum path length with $(printf %3d $CHARS_PER_SUBDIR) chars per subdir: " + if [[ $INTERACTIVE -eq 1 ]] ; then + echo -n " " + fi # Trick from https://stackoverflow.com/a/5349842/1380267 SUBDIR=$(printf 'x%.0s' $(seq 1 $CHARS_PER_SUBDIR)) mkdir "$SUBDIR" @@ -54,8 +64,10 @@ for CHARS_PER_SUBDIR in 1 10 100 $MAX_DIRNAME ; do NEXT="$P/$SUBDIR" mkdir "$NEXT" 2> /dev/null || break P=$NEXT - echo -n -e "\b\b\b\b" - printf %4d ${#P} + if [[ $INTERACTIVE -eq 1 ]] ; then + echo -n -e "\b\b\b\b" + printf %4d ${#P} + fi done # Then add one character at a time until we hit an error NAME="" @@ -67,7 +79,9 @@ for CHARS_PER_SUBDIR in 1 10 100 $MAX_DIRNAME ; do if [[ $NAME != "" ]] ; then P=$P/$NAME fi - echo -n -e "\b\b\b\b" + if [[ $INTERACTIVE -eq 1 ]] ; then + echo -n -e "\b\b\b\b" + fi printf %4d ${#P} echo rm -R "$SUBDIR" |