[PATCH] Only force 'tree' color output if stdout is a terminal

[matthias.gerstner at nefkom.net]

From: Matthias Gerstner <Matthias.Gerstner at nefkom.net>

Currently something like `pass ls | cat` will still produce color escape
sequences. This is problematic when trying to parse the output, or
otherwise storing the output in a file etc.
---
 src/password-store.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/password-store.sh b/src/password-store.sh
index 22e818f..dcf7d47 100755
--- a/src/password-store.sh
+++ b/src/password-store.sh
@@ -19,6 +19,7 @@ CLIP_TIME="${PASSWORD_STORE_CLIP_TIME:-45}"
 GENERATED_LENGTH="${PASSWORD_STORE_GENERATED_LENGTH:-25}"
 CHARACTER_SET="${PASSWORD_STORE_CHARACTER_SET:-[:punct:][:alnum:]}"
 CHARACTER_SET_NO_SYMBOLS="${PASSWORD_STORE_CHARACTER_SET_NO_SYMBOLS:-[:alnum:]}"
+[[ -t 1 ]] && TREE_COLORIZE="-C"
 
 unset GIT_DIR GIT_WORK_TREE GIT_NAMESPACE GIT_INDEX_FILE GIT_INDEX_VERSION GIT_OBJECT_DIRECTORY GIT_COMMON_DIR
 export GIT_CEILING_DIRECTORIES="$PREFIX/.."
@@ -402,7 +403,7 @@ cmd_show() {
 		else
 			echo "${path%\/}"
 		fi
-		tree -N -C -l --noreport "$PREFIX/$path" 3>&- | tail -n +2 | sed -E 's/\.gpg(\x1B\[[0-9]+m)?( ->|$)/\1\2/g' # remove .gpg at end of line, but keep colors
+		tree -N $TREE_COLORIZE -l --noreport "$PREFIX/$path" 3>&- | tail -n +2 | sed -E 's/\.gpg(\x1B\[[0-9]+m)?( ->|$)/\1\2/g' # remove .gpg at end of line, but keep colors
 	elif [[ -z $path ]]; then
 		die "Error: password store is empty. Try \"pass init\"."
 	else
@@ -414,7 +415,7 @@ cmd_find() {
 	[[ $# -eq 0 ]] && die "Usage: $PROGRAM $COMMAND pass-names..."
 	IFS="," eval 'echo "Search Terms: $*"'
 	local terms="*$(printf '%s*|*' "$@")"
-	tree -N -C -l --noreport -P "${terms%|*}" --prune --matchdirs --ignore-case "$PREFIX" 3>&- | tail -n +2 | sed -E 's/\.gpg(\x1B\[[0-9]+m)?( ->|$)/\1\2/g'
+	tree -N $TREE_COLORIZE -l --noreport -P "${terms%|*}" --prune --matchdirs --ignore-case "$PREFIX" 3>&- | tail -n +2 | sed -E 's/\.gpg(\x1B\[[0-9]+m)?( ->|$)/\1\2/g'
 }
 
 cmd_grep() {
-- 
2.43.2