commit 8a2b868c8f35bf364b391a56ad8437d19545235e
Author: Tom MTT <tom@heimdall.pm>
Date:   Mon Oct 17 21:59:47 2022 +0200

    feat: oshu-launcher

diff --git a/oshu-launcher b/oshu-launcher
new file mode 100755
index 0000000..0784da9
--- /dev/null
+++ b/oshu-launcher
@@ -0,0 +1,171 @@
+#!/bin/bash
+
+# Copyright 2022 Tom MTT <tom@heimdall.pm>
+# This file is licensed under the 3-Clause BSD License.
+# Please see 'oshu-launcher version' for more information.
+
+# Shell options
+set -euo pipefail
+
+# Debug Mode
+[ "${DEBUG+x}" ] && set -x
+
+# Constants
+PROGRAM="$(basename "$0")"
+PADDING="$(printf "%-${#PROGRAM}s")"
+VERSION="0.1.0"
+AUTHORS="Tom MTT <tom@heimdall.pm>"
+PREFIX="$HOME/.osu"
+
+# Misc
+CLEAR="\033[0m"
+RED="\033[31m"
+BLUE="\033[34m"
+
+ERROR="${RED}Error${CLEAR}"
+PS3="> "
+
+die() {
+    echo -e "$PROGRAM: $ERROR: $1" >&2
+    shift
+
+    for text in "$@"
+    do
+        echo -e "$PADDING  $text" >&2
+    done
+
+    exit 1
+}
+
+# Check dependencies and stuff
+check_deps() {
+    type oshu > /dev/null 2>&1 || die "'oshu' not found." "Make sure it is installed and in your \$PATH."
+    type tree > /dev/null 2>&1 || die "'tree' not found." "Make sure it is installed and in your \$PATH."
+}
+
+# Display help page
+cmd_help() {
+cat <<EOF
+oshu-launcher - a small menu for oshu
+
+Usage: $PROGRAM [help|version|play|list]
+Commands:
+  help          display this help
+  version       display software version and license
+  play          play oshu
+  list          list available beatmaps and variants
+
+EOF
+}
+
+# Display software version and license
+cmd_version() {
+cat <<EOF
+oshu-launcher - a small menu for oshu
+              - version $VERSION by $AUTHORS
+
+Copyright 2022 Tom MTT <tom@heimdall.pm>
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+EOF
+}
+
+# Play a beatmap
+cmd_play() {
+    while true
+    do
+        clear
+        cd "$PREFIX"
+
+        echo -e "${BLUE}Which beatmap?${CLEAR}"
+        select beatmap in *
+        do
+            [[ "$REPLY" = "q" ]] && exit
+            [[ -z "$beatmap" ]]  && continue
+
+            clear
+            cd "$beatmap"
+
+            variants=()
+
+            for file in *.osu
+            do
+                variants+=("$(basename "$file" .osu)")
+            done
+
+            echo -e "${BLUE}Which variant?${CLEAR}"
+            select variant in "${variants[@]}"
+            do
+                [[ "$REPLY" = "q" ]] && exit
+                [[ -z "$variant" ]]  && continue
+
+                oshu --pause "$variant.osu"
+                break
+            done
+
+            break
+        done
+    done
+}
+
+# List every beatmap and variants
+cmd_list() {
+    tree -NCl --prune --noreport -P "*.osu" * | sed -E 's/\.osu(\x1B\[[0-9]+m)?( ->|$)/\1\2/g'
+}
+
+# Main function
+main() {
+    # Change root folder
+    cd "$PREFIX"
+
+    # Convert long flags to short ones
+    for arg in "$@"; do
+        shift
+        case "$arg" in
+            "--help")    set -- "$@" "-h"   ;;
+            "--version") set -- "$@" "-V"   ;;
+            *)           set -- "$@" "$arg" ;;
+        esac
+    done
+
+    argument="${1-}"
+
+    # Parse arguments
+    case "$argument" in
+        "")   cmd_play    ;;
+        "-h") cmd_help    ;;
+        "-V") cmd_version ;;
+        "-"*)
+            die "'$argument' is not a known parameter." \
+                "Run '$PROGRAM help' for a list of known parameters."
+        ;;
+        *)
+            shift
+
+            if type "cmd_$argument" > /dev/null 2>&1
+            then
+                "cmd_$argument" "$@"
+            else
+                die "'$argument' is not a known subcommand." \
+                    "Run '$PROGRAM help' for a list of known subcommands."
+            fi
+        ;;
+    esac
+}
+
+check_deps
+main "$@"