refactor: split launch process into functions

1 files changed, 48 insertions, 41 deletions

diff --git a/mcsh.sh b/mcsh.sh
index 9d9938f..fc60ec4 100755
--- a/mcsh.sh
+++ b/mcsh.sh
@@ -4,55 +4,62 @@ IFS=$'\n\t'
 
 VERSION="1.21.8"
 
-function download_library {
-    if ! [[ -e "${2:-}" ]]; then
-        printf '%s\n' "${1:-}"
-        mkdir -p "$(dirname "${2:-}")"
-        curl --silent -o "${2:-}" "${3:-}"
-    fi
-}
-export -f download_library
+function update_metadata {
+    printf 'updating version manifest\n'
+    mkdir -p versions
+    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/manifest.json
 
-function download_asset {
-    if ! [[ -e "assets/objects/${2:-}" ]]; then
-        printf '%s\n' "${1:-}"
-        mkdir -p "$(dirname "assets/objects/${2:-}")"
-        curl --silent -o "assets/objects/${2:-}" "https://resources.download.minecraft.net/${2:-}"
-    fi
+    printf 'updating %s meta %s\n' "$VERSION"
+    mkdir -p "versions/$VERSION"
+    curl --silent -o "versions/$VERSION/meta.json" "$(jq -r --arg version "$VERSION" '.versions[$version]' versions/manifest.json)"
+    meta="$(jq -c --slurpfile info info.json --slurpfile auth auth.json -f meta.jq "versions/$VERSION/meta.json")"
+
+    printf 'updating %s asset index...\n' "$VERSION"
+    mkdir -p assets/indexes
+    assets_url="$(<<<"$meta" jq -r '.asset_index')"
+    curl --silent -o "assets/indexes/$(basename "$assets_url")" "$assets_url"
 }
-export -f download_asset
 
-printf 'updating version manifest\n'
-mkdir -p versions
-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/manifest.json
+function launch {
+    update_metadata
 
+    function download_library {
+        if ! [[ -e "${2:-}" ]]; then
+            printf '%s\n' "${1:-}"
+            mkdir -p "$(dirname "${2:-}")"
+            curl --silent -o "${2:-}" "${3:-}"
+        fi
+    }
+    export -f download_library
 
-printf 'updating %s meta %s\n' "$VERSION"
-mkdir -p "versions/$VERSION"
-curl --silent -o "versions/$VERSION/meta.json" "$(jq -r --arg version "$VERSION" '.versions[$version]' versions/manifest.json)"
-meta="$(jq -c --slurpfile info info.json --slurpfile auth auth.json -f meta.jq "versions/$VERSION/meta.json")"
+    function download_asset {
+        if ! [[ -e "assets/objects/${2:-}" ]]; then
+            printf '%s\n' "${1:-}"
+            mkdir -p "$(dirname "assets/objects/${2:-}")"
+            curl --silent -o "assets/objects/${2:-}" "https://resources.download.minecraft.net/${2:-}"
+        fi
+    }
+    export -f download_asset
 
-printf 'updating %s asset index...\n' "$VERSION"
-mkdir -p assets/indexes
-assets_url="$(<<<"$meta" jq -r '.asset_index')"
-curl --silent -o "assets/indexes/$(basename "$assets_url")" "$assets_url"
+    #TODO: check hash
+    if ! [[ -e "versions/$VERSION/client.jar" ]]; then
+        printf 'downloading %s client jar...\n' "$VERSION"
+        <<<"$meta" jq -r '.client_url' | xargs curl --silent -o "versions/$VERSION/client.jar"
+    fi
 
-#TODO: check hash
-if ! [[ -e "versions/$VERSION/client.jar" ]]; then
-    printf 'downloading %s client jar...\n' "$VERSION"
-    <<<"$meta" jq -r '.client_url' | xargs curl --silent -o "versions/$VERSION/client.jar"
-fi
+    printf 'downloading libraries...\n'
+    <<<"$meta" jq -r '.libraries[] | "\(.name) libraries/\(.path) \(.url)"' | xargs -I {} "$SHELL" -c "download_library {}"
 
-printf 'downloading libraries...\n'
-<<<"$meta" jq -r '.libraries[] | "\(.name) libraries/\(.path) \(.url)"' | xargs -I {} "$SHELL" -c "download_library {}"
+    printf 'downloading assets...\n'
+    jq -r '.objects | to_entries[] | "\(.key) \(.value.hash[:2])/\(.value.hash)"' "assets/indexes/$(basename "$assets_url")" | xargs -P 10 -I {} "$SHELL" -c "download_asset {}"
 
-printf 'downloading assets...\n'
-jq -r '.objects | to_entries[] | "\(.key) \(.value.hash[:2])/\(.value.hash)"' "assets/indexes/$(basename "$assets_url")" | xargs -P 10 -I {} "$SHELL" -c "download_asset {}"
+    # if ! [[ -e "versions/$VERSION/log4j.xml" ]]; then
+    #     printf 'downloading %s log4j config...\n' "$VERSION"
+    #     <<<"$meta" jq -r '.logging_config' | xargs curl --silent -o "versions/$VERSION/log4j.xml"
+    # fi
 
-# if ! [[ -e "versions/$VERSION/log4j.xml" ]]; then
-#     printf 'downloading %s log4j config...\n' "$VERSION"
-#     <<<"$meta" jq -r '.logging_config' | xargs curl --silent -o "versions/$VERSION/log4j.xml"
-# fi
+    printf 'starting game :3\n'
+    <<<"$meta" jq -r '.args.jvm + [.main_class] + .args.game | join(" ")' | xargs java
+}
 
-printf 'starting game :3\n'
-<<<"$meta" jq -r '.args.jvm + [.main_class] + .args.game | join(" ")' | xargs java
+launch