feat(installer): add jsdelivr.net CDN as primary mirror for download failover

README.en.md

@@ -63,7 +63,7 @@ Tachyon intercepts network flows via kernel **nftables** and dispatches requests
 * **Static DNS Overriding (`dns_hosts`)**: Direct mapping of domains to static IP addresses in sing-box DNS and dnsmasq without editing `/etc/hosts`.
 * **Remote Hosts Lists Ingestion (`hosts_list_urls`)**: Automatic background downloading and parsing of external host lists and blocklists (AdAway, StevenBlack, custom blocklists).
 * **Unified Cache (`combined.txt`)**: High-performance deduplication, merging, and global caching of multiple remote host sources into a single lightweight cache.
-* **GitHub Mirror Failover**: Resilient downloads that automatically retry via mirrors (`gh-proxy.com`, `ghproxy.net`) if direct access to github.com is blocked or throttled.
+* **GitHub Mirror Failover**: Resilient downloads that automatically retry via mirrors (`cdn.jsdelivr.net`, `gh-proxy.com`, `ghproxy.net`) if direct access to github.com is blocked or throttled.
 * **Hosts-Only Action Sections (`action = hosts`)**: Dedicated routing sections operating purely as DNS override engines without requiring an outbound proxy association.
 
 <p align="center">
@@ -200,10 +200,13 @@ wget -O /tmp/tachyon-setup.sh https://raw.githubusercontent.com/Dushnilin/tachyo
 > [!TIP]
 > **Installation Mirrors (if direct access to GitHub is blocked or throttled):**
 > ```bash
-> # Mirror 1 (gh-proxy.com):
+> # Mirror 1 (jsdelivr.net CDN):
+> wget -O /tmp/tachyon-setup.sh https://cdn.jsdelivr.net/gh/Dushnilin/tachyon@main/install.sh && sh /tmp/tachyon-setup.sh
+> 
+> # Mirror 2 (gh-proxy.com):
 > wget -O /tmp/tachyon-setup.sh https://gh-proxy.com/raw.githubusercontent.com/Dushnilin/tachyon/main/install.sh && sh /tmp/tachyon-setup.sh
 > 
-> # Mirror 2 (ghfast.top):
+> # Mirror 3 (ghfast.top):
 > wget -O /tmp/tachyon-setup.sh https://ghfast.top/https://raw.githubusercontent.com/Dushnilin/tachyon/main/install.sh && sh /tmp/tachyon-setup.sh
 > ```
 
@@ -218,8 +221,12 @@ To cleanly remove Tachyon, restore stock DNS, flush nftables rules, and preserve
 wget -O /tmp/tachyon-uninstall.sh https://raw.githubusercontent.com/Dushnilin/tachyon/main/uninstall.sh && sh /tmp/tachyon-uninstall.sh
 ```
 
-*Via mirror gh-proxy.com:*
+*Via mirrors:*
 ```bash
+# Mirror 1 (jsdelivr.net CDN):
+wget -O /tmp/tachyon-uninstall.sh https://cdn.jsdelivr.net/gh/Dushnilin/tachyon@main/uninstall.sh && sh /tmp/tachyon-uninstall.sh
+
+# Mirror 2 (gh-proxy.com):
 wget -O /tmp/tachyon-uninstall.sh https://gh-proxy.com/raw.githubusercontent.com/Dushnilin/tachyon/main/uninstall.sh && sh /tmp/tachyon-uninstall.sh
 ```
 

README.md

@@ -63,7 +63,7 @@ Tachyon перехватывает сетевой стек через ядро *
 * **Статический DNS-Overriding (`dns_hosts`)**: Прямое переопределение IP-адресов для доменов в DNS-модуле sing-box и dnsmasq без необходимости подмены `/etc/hosts`.
 * **Загрузка сторонних списков Hosts (`hosts_list_urls`)**: Автоматическая фоновая загрузка и интеграция внешних реестров и списков блокировок (AdAway, StevenBlack, РКН/Антизапрет списки).
 * **Умный кэш (`combined.txt`)**: Автоматическое слияние, очистка и единое кэширование нескольких источников списков с поддержкой мгновенного переиспользования.
-* **Резервирование через зеркала (GitHub Mirror Retry)**: При сетевых блокировках github.com модули загрузки автоматически переключаются на зеркала (`gh-proxy.com`, `ghproxy.net`).
+* **Резервирование через зеркала (GitHub Mirror Retry)**: При сетевых блокировках github.com модули загрузки автоматически переключаются на зеркала (`cdn.jsdelivr.net`, `gh-proxy.com`, `ghproxy.net`).
 * **Секции чистого Hosts (`action = hosts`)**: Создание изолированных правил перенаправления DNS без обязательной привязки к прокси-нодам.
 
 <p align="center">
@@ -200,10 +200,13 @@ wget -O /tmp/tachyon-setup.sh https://raw.githubusercontent.com/Dushnilin/tachyo
 > [!TIP]
 > **Зеркала установки (при блокировке или замедлении GitHub):**
 > ```bash
-> # Зеркало 1 (gh-proxy.com):
+> # Зеркало 1 (jsdelivr.net CDN):
+> wget -O /tmp/tachyon-setup.sh https://cdn.jsdelivr.net/gh/Dushnilin/tachyon@main/install.sh && sh /tmp/tachyon-setup.sh
+> 
+> # Зеркало 2 (gh-proxy.com):
 > wget -O /tmp/tachyon-setup.sh https://gh-proxy.com/raw.githubusercontent.com/Dushnilin/tachyon/main/install.sh && sh /tmp/tachyon-setup.sh
 > 
-> # Зеркало 2 (ghfast.top):
+> # Зеркало 3 (ghfast.top):
 > wget -O /tmp/tachyon-setup.sh https://ghfast.top/https://raw.githubusercontent.com/Dushnilin/tachyon/main/install.sh && sh /tmp/tachyon-setup.sh
 > ```
 
@@ -218,8 +221,12 @@ wget -O /tmp/tachyon-setup.sh https://raw.githubusercontent.com/Dushnilin/tachyo
 wget -O /tmp/tachyon-uninstall.sh https://raw.githubusercontent.com/Dushnilin/tachyon/main/uninstall.sh && sh /tmp/tachyon-uninstall.sh
 ```
 
-*Через зеркало gh-proxy.com:*
+*Через зеркала:*
 ```bash
+# Зеркало 1 (jsdelivr.net CDN):
+wget -O /tmp/tachyon-uninstall.sh https://cdn.jsdelivr.net/gh/Dushnilin/tachyon@main/uninstall.sh && sh /tmp/tachyon-uninstall.sh
+
+# Зеркало 2 (gh-proxy.com):
 wget -O /tmp/tachyon-uninstall.sh https://gh-proxy.com/raw.githubusercontent.com/Dushnilin/tachyon/main/uninstall.sh && sh /tmp/tachyon-uninstall.sh
 ```
 

install.sh

@@ -1695,6 +1695,44 @@ download_file_once() {
     esac
 }
 
+github_to_jsdelivr() {
+    _url="$1"
+    case "$_url" in
+        *github.com*)
+            _path="${_url#*github.com/}"
+            case "$_path" in
+                */releases/download/*)
+                    _repo_owner="$(printf '%s' "$_path" | cut -d'/' -f1)"
+                    _repo_name="$(printf '%s' "$_path" | cut -d'/' -f2)"
+                    _tag="$(printf '%s' "$_path" | cut -d'/' -f4)"
+                    _file="$(printf '%s' "$_path" | cut -d'/' -f5-)"
+                    printf 'https://cdn.jsdelivr.net/gh/%s/%s@%s/%s' "$_repo_owner" "$_repo_name" "$_tag" "$_file"
+                    return 0
+                    ;;
+                */raw/*)
+                    _repo_owner="$(printf '%s' "$_path" | cut -d'/' -f1)"
+                    _repo_name="$(printf '%s' "$_path" | cut -d'/' -f2)"
+                    _branch="$(printf '%s' "$_path" | cut -d'/' -f4)"
+                    _file="$(printf '%s' "$_path" | cut -d'/' -f5-)"
+                    printf 'https://cdn.jsdelivr.net/gh/%s/%s@%s/%s' "$_repo_owner" "$_repo_name" "$_branch" "$_file"
+                    return 0
+                    ;;
+                */*)
+                    _repo_owner="$(printf '%s' "$_path" | cut -d'/' -f1)"
+                    _repo_name="$(printf '%s' "$_path" | cut -d'/' -f2)"
+                    _ref="$(printf '%s' "$_path" | cut -d'/' -f4)"
+                    _file="$(printf '%s' "$_path" | cut -d'/' -f5-)"
+                    [ -n "$_file" ] && {
+                        printf 'https://cdn.jsdelivr.net/gh/%s/%s@%s/%s' "$_repo_owner" "$_repo_name" "$_ref" "$_file"
+                        return 0
+                    }
+                    ;;
+            esac
+            ;;
+    esac
+    printf '%s' "$_url"
+}
+
 download_with_retry() {
     url="$1"
     output_path="$2"
@@ -1702,14 +1740,21 @@ download_with_retry() {
     dl_num="${4:-}"
     dl_total="${5:-}"
     attempt=1
-    max_attempts=3
+    max_attempts=4
+    jsdelivr_url="$(github_to_jsdelivr "$url")"
 
     while [ "$attempt" -le "$max_attempts" ]; do
         current_url="$url"
-        if [ "$attempt" -eq 2 ]; then
+        if [ "$attempt" -eq 2 ] && [ "$jsdelivr_url" != "$url" ]; then
+            warn "Retrying $label via jsdelivr.net CDN..."
+            current_url="$jsdelivr_url"
+        elif [ "$attempt" -eq 2 ] || ([ "$attempt" -eq 3 ] && [ "$jsdelivr_url" = "$url" ]); then
             warn "Retrying $label via gh-proxy.com mirror..."
             current_url="https://gh-proxy.com/$url"
-        elif [ "$attempt" -eq 3 ]; then
+        elif [ "$attempt" -eq 3 ] && [ "$jsdelivr_url" != "$url" ]; then
+            warn "Retrying $label via gh-proxy.com mirror..."
+            current_url="https://gh-proxy.com/$url"
+        elif [ "$attempt" -eq 4 ]; then
             warn "Retrying $label via ghproxy.net mirror..."
             current_url="https://ghproxy.net/$url"
         fi