uoeia

@@ -5,27 +5,27 @@ show_usage() {
 
 Usage: uoeia [OPTION]... [FILE|URL]
 
-Displays the specified image using your preferred image viewer.
+Displays the specified image using the nsxiv program, or an image viewer of your choice.
 
 Can open remote urls of individual images, galleries, as well as local files at the same time.
 Uses gallery-dl for remote gallery opening - so if gallery-dl can open it, so can your image viewer.
 
 Options:
-  -v, --viewer       Specify the image viewer to use.
+  -v, --viewer       Specify the image viewer to use (default: nsxiv).
   -q, --quiet        Don't display any output during normal operation.
   -g, --gdlopts      Pass through options to gallery-dl. Take care to fully quote each passed option.
   -r, --replace      Url patterns to replace in the format 'mypattern:::myreplacement'
   -h, --help         Show this help message and exit.
 
 Examples:
-  uoeia my-image.jpg                        Display a local image file.
+  uoeia my-image.jpg                        Display a local image file using nsxiv.
 
-  uoeia https://example.com/image           Display an image/image gallery from a URL.
+  uoeia https://example.com/image           Display an image/image gallery from a URL using nsxiv.
 
   uoeia -v imv https://example.com/image    Display an image from a URL using imv.
 
   uoeia -g \"--range 1-10\" https://reddit.com/r/earthporn
-                                            Download and display the first 10 results.
+                                            Download and display the first 10 results using nsxiv.
 
   uoeia -r 'nitter.net:::twitter.com' https://nitter.net/donttrythis/
                                             Display images from twitter directly instead of its
@@ -33,6 +33,9 @@ Examples:
 "
 }
 
+cache_dir="$(mktemp -d)"
+imageviewer=nsxiv
+
 die() {
     [ -n "$1" ] && printf '%s\n' "$*" >&2
     exit 1
@@ -85,19 +88,11 @@ dereference() {
     echo "$output"
 }
 
-get_imageviewer() {
-    for cmd in nsxiv sxiv feh imv vimiv; do
-        if command -v "$cmd" 1>/dev/null 2>&1; then program="$cmd"; break; fi
-    done
-    echo "$program"
-}
-
 main() {
-    [ -n "$imageviewer" ] || die "Error: Could not find a suitable image viewer, set one manually with the '-v' option."
+    command -v "${imageviewer}" 1>/dev/null 2>&1 || die "Opening images in ${imageviewer} requires ${imageviewer} to be installed and and on the path."
-    command -v "${imageviewer}" 1>/dev/null 2>&1 || die "Error: Opening images in ${imageviewer} requires ${imageviewer} to be installed and and on the path."
 
     trap cleanup EXIT
-    [ -d "$cache_dir" ] || mkdir -p -- "$cache_dir" || die "Error: Can not create cache directory {$cache_dir}"
+    [ -d "$cache_dir" ] || mkdir -p -- "$cache_dir" || die
     im_number=1
     while [ -n "$1" ]; do
         case "$1" in
@@ -112,11 +107,8 @@ main() {
         ${imageviewer} "$cache_dir"
 }
 
-cache_dir="$(mktemp -d)"
-imageviewer="$(get_imageviewer)"
 gal_args=()
 replacements=()
-
 while [[ $# -gt 0 ]]; do
     case "$1" in
     -h | --help)