refactor: switch to tabs

1 files changed, 254 insertions, 254 deletions

diff --git a/mcsh.sh b/mcsh.sh
index 774903e..900c5d9 100755
--- a/mcsh.sh
+++ b/mcsh.sh
@@ -12,269 +12,269 @@ ASSETS_DIR="$DATA_DIR/assets"
 GAME_DIR="$DATA_DIR/run"
 
 function auth (
-    CLIENT_ID="9e97542c-b7d5-4a02-a656-4559dad4590a"
-    DEVICE_CODE_URL="https://login.microsoftonline.com/consumers/oauth2/v2.0/devicecode"
-    TOKEN_URL="https://login.microsoftonline.com/consumers/oauth2/v2.0/token"
-    XBL_AUTH_URL="https://user.auth.xboxlive.com/user/authenticate"
-    XSTS_TOKEN_URL="https://xsts.auth.xboxlive.com/xsts/authorize"
-    MC_AUTH_URL="https://api.minecraftservices.com/authentication/login_with_xbox"
-
-    profile="${1:-"<unknown>"}"
-
-    if ! [[ -e "$DATA_DIR/profiles.json" ]]; then
-        printf '{}\n' > "$DATA_DIR/profiles.json"
-    fi
-
-    now="$(date -u '+%s')"
-
-    msa_token=""
-    refresh_token="$(jq -r --arg profile "$profile" '.[$profile].refresh_token.token // ""' "$DATA_DIR/profiles.json")"
-    refresh_token_exp="$(jq -r --arg profile "$profile" '.[$profile].refresh_token.expiration // 0' "$DATA_DIR/profiles.json")"
-
-    xuid="$(jq -r --arg profile "$profile" '.[$profile].xuid // ""' "$DATA_DIR/profiles.json")"
-    xbl_token="$(jq -r --arg profile "$profile" '.[$profile].xbl_token.token // ""' "$DATA_DIR/profiles.json")"
-    xbl_token_exp="$(jq -r --arg profile "$profile" '.[$profile].xbl_token.expiration // 0' "$DATA_DIR/profiles.json")"
-    xsts_token=""
-
-    mc_token="$(jq -r --arg profile "$profile" '.[$profile].mc_token.token // ""' "$DATA_DIR/profiles.json")"
-    mc_token_exp="$(jq -r --arg profile "$profile" '.[$profile].mc_token.expiration // 0' "$DATA_DIR/profiles.json")"
-
-    function msa {
-        function login (
-            printf 'getting device code\n' >&2
-            res="$(curl -s -X POST "$DEVICE_CODE_URL" -H 'Content-Type: application/x-www-form-urlencoded' -d "client_id=$CLIENT_ID&scope=XboxLive.signin%20offline_access")"
-            device_code="$(<<<"$res" jq -r '.device_code')"
-            message="$(<<<"$res" jq -r '.message')"
-
-            printf '%s\n' "$message" >&2
-
-            printf 'waiting for token...\n' >&2
-            pending=true
-            while [[ "$pending" == true ]]; do
-                res="$(curl -s -X POST "$TOKEN_URL" -H 'Content-Type: application/x-www-form-urlencoded' -d "grant_type=urn:ietf:params:oauth:grant-type:device_code&client_id=$CLIENT_ID&device_code=$device_code")"
-                pending="$(<<<"$res" jq -r '.error == "authorization_pending"')"
-                sleep 1
-            done
-
-            printf '%s\n' "$res"
-        )
-
-        if [[ "$now" -ge "$refresh_token_exp" ]]; then
-            printf 'logging in\n' >&2
-            res="$(login)"
-        else
-            printf 'refreshing msa auth\n' >&2
-            refresh_token="$(jq -r --arg profile "$profile" '.[$profile].refresh_token.token // ""' "$DATA_DIR/profiles.json")"
-            res="$(curl -s -X POST "$TOKEN_URL" -H 'Content-Type: application/x-www-form-urlencoded' -d "grant_type=refresh_token&client_id=$CLIENT_ID&refresh_token=$refresh_token")"
-        fi
-
-        msa_token="$(<<<"$res" jq -r '.access_token')"
-        refresh_token="$(<<<"$res" jq -r '.refresh_token')"
-        refresh_token_exp="$((now + 90*24*60*60))" # msa refresh tokens expire in 90 days
-    }
-
-    function xbl {
-        printf 'authenticating with xbox live\n' >&2
-        req="$(jq -n --arg token "$msa_token" '{"Properties": {"AuthMethod": "RPS", "SiteName": "user.auth.xboxlive.com", "RpsTicket": "d=\($token)"}, "RelyingParty": "http://auth.xboxlive.com", "TokenType": "JWT"}')"
-        res="$(curl -s -X POST "$XBL_AUTH_URL" -H 'Content-Type: application/json' -H 'Accept: application/json' -d "$req")"
-        xuid="$(<<<"$res" jq -r '.DisplayClaims.xui[0].uhs')"
-        xbl_token="$(<<<"$res" jq -r '.Token')"
-        xbl_token_exp="$(date -u '+%s' -d "$(<<<"$res" jq -r '.NotAfter')")"
-    }
-
-    function xsts {
-        printf 'getting xsts token\n' >&2
-        req="$(jq -n --arg token "$xbl_token" '{"Properties": {"SandboxId": "RETAIL", "UserTokens": [ $token ]}, "RelyingParty": "rp://api.minecraftservices.com/", "TokenType": "JWT"}')"
-        res="$(curl -s -X POST "$XSTS_TOKEN_URL" -H 'Content-Type: application/json' -H 'Accept: application/json' -d "$req")"
-        xsts_token="$(<<<"$res" jq -r '.Token')"
-    }
-
-    function mc {
-        printf 'authenticating with minecraft\n' >&2
-        req="$(jq -n --arg xuid "$xuid" --arg token "$xsts_token" '{"identityToken": "XBL3.0 x=\($xuid);\($token)"}')"
-        # req="$(jq -n --arg token "$xsts_token" '{"identityToken": "XBL3.0 x=\($token)"}')"
-        res="$(curl -s -X POST "$MC_AUTH_URL" -H 'Content-Type: application/json' -H 'Accept: application/json' -d "$req")"
-        mc_token="$(<<<"$res" jq -r '.access_token')"
-        mc_token_exp="$((now + "$(<<<"$res" jq -r '.expires_in')"))"
-    }
-
-    if [[ "$now" -ge "$mc_token_exp" ]]; then
-        if [[ "$now" -ge "$xbl_token_exp" ]]; then
-            msa
-            xbl
-        fi
-
-        xsts
-        mc
-    else
-        printf 'mc token valid\n' >&2
-    fi
-
-    profiles="$(
-        jq  --arg profile "$profile" \
-            --arg xuid "$xuid" \
-            --arg refresh_token "$refresh_token" \
-            --arg refresh_token_exp "$refresh_token_exp" \
-            --arg xbl_token "$xbl_token" \
-            --arg xbl_token_exp "$xbl_token_exp" \
-            --arg mc_token "$mc_token" \
-            --arg mc_token_exp "$mc_token_exp" \
-            '. + {
-                $profile: .[$profile] + {
-                    "xuid": $xuid,
-                    "type": "msa",
-                    "refresh_token": {
-                        "token": $refresh_token,
-                        "expiration": ($refresh_token_exp | tonumber)
-                    },
-                    "xbl_token": {
-                        "token": $xbl_token,
-                        "expiration": ($xbl_token_exp | tonumber)
-                    },
-                    "mc_token": {
-                        "token": $mc_token,
-                        "expiration": ($mc_token_exp | tonumber)
-                    }
-                }
-            }' \
-            "$DATA_DIR/profiles.json"
-    )"
-    <<<"$profiles" cat > "$DATA_DIR/profiles.json"
-
-    printf '%s\n' "$profile"
+	CLIENT_ID="9e97542c-b7d5-4a02-a656-4559dad4590a"
+	DEVICE_CODE_URL="https://login.microsoftonline.com/consumers/oauth2/v2.0/devicecode"
+	TOKEN_URL="https://login.microsoftonline.com/consumers/oauth2/v2.0/token"
+	XBL_AUTH_URL="https://user.auth.xboxlive.com/user/authenticate"
+	XSTS_TOKEN_URL="https://xsts.auth.xboxlive.com/xsts/authorize"
+	MC_AUTH_URL="https://api.minecraftservices.com/authentication/login_with_xbox"
+
+	profile="${1:-"<unknown>"}"
+
+	if ! [[ -e "$DATA_DIR/profiles.json" ]]; then
+		printf '{}\n' > "$DATA_DIR/profiles.json"
+	fi
+
+	now="$(date -u '+%s')"
+
+	msa_token=""
+	refresh_token="$(jq -r --arg profile "$profile" '.[$profile].refresh_token.token // ""' "$DATA_DIR/profiles.json")"
+	refresh_token_exp="$(jq -r --arg profile "$profile" '.[$profile].refresh_token.expiration // 0' "$DATA_DIR/profiles.json")"
+
+	xuid="$(jq -r --arg profile "$profile" '.[$profile].xuid // ""' "$DATA_DIR/profiles.json")"
+	xbl_token="$(jq -r --arg profile "$profile" '.[$profile].xbl_token.token // ""' "$DATA_DIR/profiles.json")"
+	xbl_token_exp="$(jq -r --arg profile "$profile" '.[$profile].xbl_token.expiration // 0' "$DATA_DIR/profiles.json")"
+	xsts_token=""
+
+	mc_token="$(jq -r --arg profile "$profile" '.[$profile].mc_token.token // ""' "$DATA_DIR/profiles.json")"
+	mc_token_exp="$(jq -r --arg profile "$profile" '.[$profile].mc_token.expiration // 0' "$DATA_DIR/profiles.json")"
+
+	function msa {
+		function login (
+			printf 'getting device code\n' >&2
+			res="$(curl -s -X POST "$DEVICE_CODE_URL" -H 'Content-Type: application/x-www-form-urlencoded' -d "client_id=$CLIENT_ID&scope=XboxLive.signin%20offline_access")"
+			device_code="$(<<<"$res" jq -r '.device_code')"
+			message="$(<<<"$res" jq -r '.message')"
+
+			printf '%s\n' "$message" >&2
+
+			printf 'waiting for token...\n' >&2
+			pending=true
+			while [[ "$pending" == true ]]; do
+				res="$(curl -s -X POST "$TOKEN_URL" -H 'Content-Type: application/x-www-form-urlencoded' -d "grant_type=urn:ietf:params:oauth:grant-type:device_code&client_id=$CLIENT_ID&device_code=$device_code")"
+				pending="$(<<<"$res" jq -r '.error == "authorization_pending"')"
+				sleep 1
+			done
+
+			printf '%s\n' "$res"
+		)
+
+		if [[ "$now" -ge "$refresh_token_exp" ]]; then
+			printf 'logging in\n' >&2
+			res="$(login)"
+		else
+			printf 'refreshing msa auth\n' >&2
+			refresh_token="$(jq -r --arg profile "$profile" '.[$profile].refresh_token.token // ""' "$DATA_DIR/profiles.json")"
+			res="$(curl -s -X POST "$TOKEN_URL" -H 'Content-Type: application/x-www-form-urlencoded' -d "grant_type=refresh_token&client_id=$CLIENT_ID&refresh_token=$refresh_token")"
+		fi
+
+		msa_token="$(<<<"$res" jq -r '.access_token')"
+		refresh_token="$(<<<"$res" jq -r '.refresh_token')"
+		refresh_token_exp="$((now + 90*24*60*60))" # msa refresh tokens expire in 90 days
+	}
+
+	function xbl {
+		printf 'authenticating with xbox live\n' >&2
+		req="$(jq -n --arg token "$msa_token" '{"Properties": {"AuthMethod": "RPS", "SiteName": "user.auth.xboxlive.com", "RpsTicket": "d=\($token)"}, "RelyingParty": "http://auth.xboxlive.com", "TokenType": "JWT"}')"
+		res="$(curl -s -X POST "$XBL_AUTH_URL" -H 'Content-Type: application/json' -H 'Accept: application/json' -d "$req")"
+		xuid="$(<<<"$res" jq -r '.DisplayClaims.xui[0].uhs')"
+		xbl_token="$(<<<"$res" jq -r '.Token')"
+		xbl_token_exp="$(date -u '+%s' -d "$(<<<"$res" jq -r '.NotAfter')")"
+	}
+
+	function xsts {
+		printf 'getting xsts token\n' >&2
+		req="$(jq -n --arg token "$xbl_token" '{"Properties": {"SandboxId": "RETAIL", "UserTokens": [ $token ]}, "RelyingParty": "rp://api.minecraftservices.com/", "TokenType": "JWT"}')"
+		res="$(curl -s -X POST "$XSTS_TOKEN_URL" -H 'Content-Type: application/json' -H 'Accept: application/json' -d "$req")"
+		xsts_token="$(<<<"$res" jq -r '.Token')"
+	}
+
+	function mc {
+		printf 'authenticating with minecraft\n' >&2
+		req="$(jq -n --arg xuid "$xuid" --arg token "$xsts_token" '{"identityToken": "XBL3.0 x=\($xuid);\($token)"}')"
+		# req="$(jq -n --arg token "$xsts_token" '{"identityToken": "XBL3.0 x=\($token)"}')"
+		res="$(curl -s -X POST "$MC_AUTH_URL" -H 'Content-Type: application/json' -H 'Accept: application/json' -d "$req")"
+		mc_token="$(<<<"$res" jq -r '.access_token')"
+		mc_token_exp="$((now + "$(<<<"$res" jq -r '.expires_in')"))"
+	}
+
+	if [[ "$now" -ge "$mc_token_exp" ]]; then
+		if [[ "$now" -ge "$xbl_token_exp" ]]; then
+			msa
+			xbl
+		fi
+
+		xsts
+		mc
+	else
+		printf 'mc token valid\n' >&2
+	fi
+
+	profiles="$(
+		jq  --arg profile "$profile" \
+			--arg xuid "$xuid" \
+			--arg refresh_token "$refresh_token" \
+			--arg refresh_token_exp "$refresh_token_exp" \
+			--arg xbl_token "$xbl_token" \
+			--arg xbl_token_exp "$xbl_token_exp" \
+			--arg mc_token "$mc_token" \
+			--arg mc_token_exp "$mc_token_exp" \
+			'. + {
+				$profile: .[$profile] + {
+					"xuid": $xuid,
+					"type": "msa",
+					"refresh_token": {
+						"token": $refresh_token,
+						"expiration": ($refresh_token_exp | tonumber)
+					},
+					"xbl_token": {
+						"token": $xbl_token,
+						"expiration": ($xbl_token_exp | tonumber)
+					},
+					"mc_token": {
+						"token": $mc_token,
+						"expiration": ($mc_token_exp | tonumber)
+					}
+				}
+			}' \
+			"$DATA_DIR/profiles.json"
+	)"
+	<<<"$profiles" cat > "$DATA_DIR/profiles.json"
+
+	printf '%s\n' "$profile"
 )
 
 function update_profile (
-    MC_PROFILE_URL="https://api.minecraftservices.com/minecraft/profile"
-
-    profile="$1"
-    token="$(jq -r --arg profile "$profile" '.[$profile].mc_token.token' "$DATA_DIR/profiles.json")"
-
-    printf 'getting minecraft profile\n' >&2
-    res="$(curl -s -X GET "$MC_PROFILE_URL" -H "Authorization: Bearer $token")"
-    if [[ -n "$(<<<"$res" jq -r '.error // ""')" ]]; then
-        printf 'error: user does not own minecraft\n' >&2
-        exit 1
-    fi
-    
-    uuid="$(<<<"$res" jq -r '.id')"
-    uuid="${uuid:0:8}-${uuid:8:4}-${uuid:12:4}-${uuid:16:4}-${uuid:20:12}"
-
-    profiles="$(
-        <<<"$res" jq \
-        --arg profile "$profile" \
-        --arg uuid "$uuid" \
-        --slurpfile profiles "$DATA_DIR/profiles.json" \
-        '$profiles[0].[$profile] as $prev
-        | $profiles[0] + {
-            "\(.name)": {
-                "username": .name,
-                "uuid": $uuid,
-                "xuid": $prev.xuid,
-                "type": $prev.type,
-                "skins": .skins,
-                "capes": .capes,
-                "refresh_token": $prev.refresh_token,
-                "xbl_token": $prev.xbl_token,
-                "mc_token": $prev.mc_token
-            }
-        }
-        | del(.["<unknown>"])'
-    )"
-    <<<"$profiles" cat > "$DATA_DIR/profiles.json"
-
-    jq --arg profile "$profile" '.[$profile]' "$DATA_DIR/profiles.json"
+	MC_PROFILE_URL="https://api.minecraftservices.com/minecraft/profile"
+
+	profile="$1"
+	token="$(jq -r --arg profile "$profile" '.[$profile].mc_token.token' "$DATA_DIR/profiles.json")"
+
+	printf 'getting minecraft profile\n' >&2
+	res="$(curl -s -X GET "$MC_PROFILE_URL" -H "Authorization: Bearer $token")"
+	if [[ -n "$(<<<"$res" jq -r '.error // ""')" ]]; then
+		printf 'error: user does not own minecraft\n' >&2
+		exit 1
+	fi
+	
+	uuid="$(<<<"$res" jq -r '.id')"
+	uuid="${uuid:0:8}-${uuid:8:4}-${uuid:12:4}-${uuid:16:4}-${uuid:20:12}"
+
+	profiles="$(
+		<<<"$res" jq \
+		--arg profile "$profile" \
+		--arg uuid "$uuid" \
+		--slurpfile profiles "$DATA_DIR/profiles.json" \
+		'$profiles[0].[$profile] as $prev
+		| $profiles[0] + {
+			"\(.name)": {
+				"username": .name,
+				"uuid": $uuid,
+				"xuid": $prev.xuid,
+				"type": $prev.type,
+				"skins": .skins,
+				"capes": .capes,
+				"refresh_token": $prev.refresh_token,
+				"xbl_token": $prev.xbl_token,
+				"mc_token": $prev.mc_token
+			}
+		}
+		| del(.["<unknown>"])'
+	)"
+	<<<"$profiles" cat > "$DATA_DIR/profiles.json"
+
+	jq --arg profile "$profile" '.[$profile]' "$DATA_DIR/profiles.json"
 )
 
 function update_metadata (
-    printf 'updating version manifest\n' >&2
-    mkdir -p "$VERSIONS_DIR"
-    curl --silent "https://piston-meta.mojang.com/mc/game/version_manifest_v2.json" | jq '{"latest": .latest, "versions": [.versions[] | {"key": .id, "value": .url}] | from_entries}' > "$VERSIONS_DIR/manifest.json"
-
-    version="${1:-}"
-    if [[ "$version" == "" || "$version" == "latest" || "$version" == "release" ]]; then
-        version="$(jq -r '.latest.release' "$VERSIONS_DIR/manifest.json")"
-    elif [[ "$version" == "snapshot" ]]; then
-        version="$(jq -r '.latest.snapshot' "$VERSIONS_DIR/manifest.json")"
-    fi
-
-    printf 'updating %s meta %s\n' "$version" >&2
-    mkdir -p "$VERSIONS_DIR/$version"
-    curl --silent -o "$VERSIONS_DIR/$version/meta.json" "$(jq -r --arg version "$version" '.versions[$version]' $VERSIONS_DIR/manifest.json)"
-    meta="$(jq -c --slurpfile info info.json -f meta.jq "$VERSIONS_DIR/$version/meta.json")"
-
-    printf 'updating %s asset index...\n' "$version" >&2
-    mkdir -p "$ASSETS_DIR/indexes"
-    assets_url="$(<<<"$meta" jq -r '.asset_index')"
-    curl --silent -o "$ASSETS_DIR/indexes/$(basename "$assets_url")" "$assets_url"
-
-    printf '%s\n' "$meta"
+	printf 'updating version manifest\n' >&2
+	mkdir -p "$VERSIONS_DIR"
+	curl --silent "https://piston-meta.mojang.com/mc/game/version_manifest_v2.json" | jq '{"latest": .latest, "versions": [.versions[] | {"key": .id, "value": .url}] | from_entries}' > "$VERSIONS_DIR/manifest.json"
+
+	version="${1:-}"
+	if [[ "$version" == "" || "$version" == "latest" || "$version" == "release" ]]; then
+		version="$(jq -r '.latest.release' "$VERSIONS_DIR/manifest.json")"
+	elif [[ "$version" == "snapshot" ]]; then
+		version="$(jq -r '.latest.snapshot' "$VERSIONS_DIR/manifest.json")"
+	fi
+
+	printf 'updating %s meta %s\n' "$version" >&2
+	mkdir -p "$VERSIONS_DIR/$version"
+	curl --silent -o "$VERSIONS_DIR/$version/meta.json" "$(jq -r --arg version "$version" '.versions[$version]' $VERSIONS_DIR/manifest.json)"
+	meta="$(jq -c --slurpfile info info.json -f meta.jq "$VERSIONS_DIR/$version/meta.json")"
+
+	printf 'updating %s asset index...\n' "$version" >&2
+	mkdir -p "$ASSETS_DIR/indexes"
+	assets_url="$(<<<"$meta" jq -r '.asset_index')"
+	curl --silent -o "$ASSETS_DIR/indexes/$(basename "$assets_url")" "$assets_url"
+
+	printf '%s\n' "$meta"
 )
 
 function launch (
-    profile="$(update_profile "$(auth "${2:-}")")"
-    printf '\n' >&2
-
-    meta="$(update_metadata "${1:-}")"
-
-    export LIBRARIES_DIR
-    function download_library {
-        if ! [[ -e "$LIBRARIES_DIR/${2:-}" ]]; then
-            printf '%s\n' "${1:-}" >&2
-            mkdir -p "$(dirname "$LIBRARIES_DIR/${2:-}")"
-            curl --silent -o "$LIBRARIES_DIR/${2:-}" "${3:-}"
-        fi
-    }
-    export -f download_library
-
-    export ASSETS_DIR
-    function download_asset {
-        if ! [[ -e "$ASSETS_DIR/objects/${2:-}" ]]; then
-            printf '%s\n' "${1:-}" >&2
-            mkdir -p "$(dirname "$ASSETS_DIR/objects/${2:-}")"
-            curl --silent -o "$ASSETS_DIR/objects/${2:-}" "https://resources.download.minecraft.net/${2:-}"
-        fi
-    }
-    export -f download_asset
-
-    #TODO: check hash
-    version="$(<<<"$meta" jq -r '.version')"
-    if ! [[ -e "$VERSIONS_DIR/$version/client.jar" ]]; then
-        printf 'downloading %s client jar...\n' "$version" >&2
-        <<<"$meta" jq -r '.client_url' | xargs curl --silent -o "$VERSIONS_DIR/$version/client.jar"
-    fi
-
-    printf 'downloading libraries...\n' >&2
-    <<<"$meta" jq -r '.libraries[] | "\(.name) \(.path) \(.url)"' | xargs -I {} "$SHELL" -c "download_library {}"
-
-    printf 'downloading assets...\n' >&2
-    jq -r '.objects | to_entries[] | "\(.key) \(.value.hash[:2])/\(.value.hash)"' "$ASSETS_DIR/indexes/$(basename "$(<<<"$meta" jq -r '.asset_index')")" | xargs -P 10 -I {} "$SHELL" -c "download_asset {}"
-
-    # if ! [[ -e "$VERSIONS_DIR/$version/log4j.xml" ]]; then
-    #     printf 'downloading %s log4j config...\n' "$version" >&2
-    #     <<<"$meta" jq -r '.logging_config' | xargs curl --silent -o "$VERSIONS_DIR/$version/log4j.xml"
-    # fi
-
-    function replace_placeholders {
-        cat - | sed \
-            -e "s:\${versions_directory}:$VERSIONS_DIR:g" \
-            -e "s:\${libraries_directory}:$LIBRARIES_DIR:g" \
-            -e "s:\${natives_directory}:$NATIVES_DIR:g" \
-            -e "s:\${assets_root}:$ASSETS_DIR:g" \
-            -e "s:\${game_directory}:$GAME_DIR:g" \
-            \
-            -e "s/\${launcher_name}/mcsh/g" \
-            -e "s/\${launcher_version}/v0.1.0/g" \
-            \
-            -e "s/\${auth_player_name}/$(<<<"$profile" jq -r '.username')/g" \
-            -e "s/\${auth_uuid}/$(<<<"$profile" jq -r '.uuid')/g" \
-            -e "s/\${auth_xuid}/$(<<<"$profile" jq -r '.xuid')/g" \
-            -e "s/\${user_type}/$(<<<"$profile" jq -r '.type')/g" \
-            -e "s/\${auth_access_token}/$(<<<"$profile" jq -r '.mc_token.token')/g"
-    }
-
-    printf '\nstarting game :3\n\n' >&2
-    <<<"$meta" jq -r '.args.jvm + [.main_class] + .args.game | join(" ")' | replace_placeholders | xargs java
+	profile="$(update_profile "$(auth "${2:-}")")"
+	printf '\n' >&2
+
+	meta="$(update_metadata "${1:-}")"
+
+	export LIBRARIES_DIR
+	function download_library {
+		if ! [[ -e "$LIBRARIES_DIR/${2:-}" ]]; then
+			printf '%s\n' "${1:-}" >&2
+			mkdir -p "$(dirname "$LIBRARIES_DIR/${2:-}")"
+			curl --silent -o "$LIBRARIES_DIR/${2:-}" "${3:-}"
+		fi
+	}
+	export -f download_library
+
+	export ASSETS_DIR
+	function download_asset {
+		if ! [[ -e "$ASSETS_DIR/objects/${2:-}" ]]; then
+			printf '%s\n' "${1:-}" >&2
+			mkdir -p "$(dirname "$ASSETS_DIR/objects/${2:-}")"
+			curl --silent -o "$ASSETS_DIR/objects/${2:-}" "https://resources.download.minecraft.net/${2:-}"
+		fi
+	}
+	export -f download_asset
+
+	#TODO: check hash
+	version="$(<<<"$meta" jq -r '.version')"
+	if ! [[ -e "$VERSIONS_DIR/$version/client.jar" ]]; then
+		printf 'downloading %s client jar...\n' "$version" >&2
+		<<<"$meta" jq -r '.client_url' | xargs curl --silent -o "$VERSIONS_DIR/$version/client.jar"
+	fi
+
+	printf 'downloading libraries...\n' >&2
+	<<<"$meta" jq -r '.libraries[] | "\(.name) \(.path) \(.url)"' | xargs -I {} "$SHELL" -c "download_library {}"
+
+	printf 'downloading assets...\n' >&2
+	jq -r '.objects | to_entries[] | "\(.key) \(.value.hash[:2])/\(.value.hash)"' "$ASSETS_DIR/indexes/$(basename "$(<<<"$meta" jq -r '.asset_index')")" | xargs -P 10 -I {} "$SHELL" -c "download_asset {}"
+
+	# if ! [[ -e "$VERSIONS_DIR/$version/log4j.xml" ]]; then
+	#     printf 'downloading %s log4j config...\n' "$version" >&2
+	#     <<<"$meta" jq -r '.logging_config' | xargs curl --silent -o "$VERSIONS_DIR/$version/log4j.xml"
+	# fi
+
+	function replace_placeholders {
+		cat - | sed \
+			-e "s:\${versions_directory}:$VERSIONS_DIR:g" \
+			-e "s:\${libraries_directory}:$LIBRARIES_DIR:g" \
+			-e "s:\${natives_directory}:$NATIVES_DIR:g" \
+			-e "s:\${assets_root}:$ASSETS_DIR:g" \
+			-e "s:\${game_directory}:$GAME_DIR:g" \
+			\
+			-e "s/\${launcher_name}/mcsh/g" \
+			-e "s/\${launcher_version}/v0.1.0/g" \
+			\
+			-e "s/\${auth_player_name}/$(<<<"$profile" jq -r '.username')/g" \
+			-e "s/\${auth_uuid}/$(<<<"$profile" jq -r '.uuid')/g" \
+			-e "s/\${auth_xuid}/$(<<<"$profile" jq -r '.xuid')/g" \
+			-e "s/\${user_type}/$(<<<"$profile" jq -r '.type')/g" \
+			-e "s/\${auth_access_token}/$(<<<"$profile" jq -r '.mc_token.token')/g"
+	}
+
+	printf '\nstarting game :3\n\n' >&2
+	<<<"$meta" jq -r '.args.jvm + [.main_class] + .args.game | join(" ")' | replace_placeholders | xargs java
 )
 
 launch "$@"