feat: Add itch.io as possible platform

Cargo.lock

@@ -200,6 +200,18 @@ version = "0.4.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "82cf52a69f51e16cffda2993f68b33a0fafd0d664163f87fa80e5e4fec2fc232"
 
+[[package]]
+name = "flate2"
+version = "1.0.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e6988e897c1c9c485f43b47a529cef42fde0547f9d8d41a7062518f1d8fc53f"
+dependencies = [
+ "cfg-if",
+ "crc32fast",
+ "libc",
+ "miniz_oxide",
+]
+
 [[package]]
 name = "fltk"
 version = "1.2.3"
@@ -1091,6 +1103,7 @@ dependencies = [
  "config",
  "failure",
  "fl2rust",
+ "flate2",
  "fltk",
  "nom 7.0.0",
  "nom_locate",

Cargo.toml

@@ -17,6 +17,7 @@ failure = "^0.1.8"
 fltk = { version = "^1.2", features = ["fltk-bundled"], optional = true }
 nom = "^7.0.*"
 nom_locate = "^3.0.*"
+flate2 = "^1.0.22"
 
 [build-dependencies]
 fl2rust = { version = "0.4", optional = true }

src/egs/get_manifests.rs

@@ -27,7 +27,7 @@ pub enum EpicGamesManifestsError {
     ReadDirError { path: String, error: std::io::Error },
 }
 
-pub fn get_egs_manifests(
+pub(crate) fn get_egs_manifests(
     settings: &EpicGamesLauncherSettings,
 ) -> Result<Vec<ManifestItem>, EpicGamesManifestsError> {
     use EpicGamesManifestsError::*;

src/egs/manifest_item.rs

@@ -2,7 +2,7 @@ use serde::{Deserialize, Serialize};
 use steam_shortcuts_util::{Shortcut, shortcut::ShortcutOwned};
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
-pub struct ManifestItem {
+pub(crate) struct ManifestItem {
     #[serde(alias = "LaunchExecutable")]
     pub launch_executable: String,
 

src/itch/butler_db_parser.rs

@@ -4,6 +4,7 @@ use nom::{
     IResult,
 };
 
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub(crate) struct DbPaths<'a> {
     pub(crate) base_path: &'a str,
     pub(crate) path: &'a str,

src/itch/itch_platform.rs

@@ -1,7 +1,12 @@
 use super::butler_db_parser::*;
+use super::receipt::Receipt;
 use super::{ItchGame, ItchSettings};
 use crate::platform::Platform;
+use _core::iter::FromIterator;
 use failure::*;
+use flate2::read::GzDecoder;
+use std::collections::HashSet;
+use std::io::prelude::*;
 use std::path::Path;
 
 pub struct ItchPlatform {
@@ -36,7 +41,7 @@ impl Platform<ItchGame, ItchErrors> for ItchPlatform {
 
         let shortcut_bytes = std::fs::read(&itch_db_location).unwrap();
 
-        let res = match parse_butler_db(&shortcut_bytes) {
+        let paths = match parse_butler_db(&shortcut_bytes) {
             Ok((_, shortcuts)) => Ok(shortcuts),
             Err(e) => Err(ItchErrors::ParseError {
                 error: e.to_string(),
@@ -44,18 +49,35 @@ impl Platform<ItchGame, ItchErrors> for ItchPlatform {
             }),
         }?;
 
-        let res = res
+        //This is done to remove douplicates
-            .iter()
+        let paths: HashSet<&DbPaths> = HashSet::from_iter(paths.iter());
-            .map(|paths| ItchGame {
+
-                install_path: paths.base_path.to_owned(),
+        let res = paths.iter().filter_map(|e| dbpath_to_game(*e)).collect();
-                executable: paths.path.to_owned(),
-                title: paths.path.to_owned(),
-            })
-            .collect();
         Ok(res)
     }
 }
 
+fn dbpath_to_game(paths: &DbPaths<'_>) -> Option<ItchGame> {
+    let recipt = Path::new(paths.base_path)
+        .join(".itch")
+        .join("receipt.json.gz");
+    if !&recipt.exists() {
+        return None;
+    }
+
+    let gz_bytes = std::fs::read(&recipt).unwrap();
+    let mut d = GzDecoder::new(gz_bytes.as_slice());
+    let mut s = String::new();
+    d.read_to_string(&mut s).unwrap();
+
+    let receipt_op: Option<Receipt> = serde_json::from_str(&s).ok();
+    receipt_op.map(|re| ItchGame {
+        install_path: paths.base_path.to_owned(),
+        executable: paths.path.to_owned(),
+        title: re.game.title,
+    })
+}
+
 #[cfg(target_os = "linux")]
 fn get_default_location() -> String {
     //If we don't have a home drive we have to just die

src/itch/mod.rs

@@ -2,6 +2,7 @@ mod settings;
 mod itch_game;
 mod itch_platform;
 mod butler_db_parser;
+mod receipt;
 
 pub use settings::*;
 pub use itch_game::*;

src/itch/receipt.rs

@@ -0,0 +1,11 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub(crate) struct Receipt{
+   pub game:Game,
+}
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub(crate) struct Game{
+   pub title:String
+}