tools: add sync.fish

tools/sync.fish

@@ -0,0 +1,82 @@
+#!/usr/bin/fish
+
+function sync
+    if test 3 -gt (count {$argv})
+        echo "sync:"
+        echo "用法: sync [REPO] [PACKAGES] [PACKAGE]"
+        echo "参数:"
+        echo "    [REPO]     Arch Linux CN 仓库路径。"
+        echo "    [PACKAGES] Packages 路径。"
+        echo "    [PACKAGE]  要同步的软件包名。"
+        return 1
+    end
+
+    set repo {$argv[1]}
+    set packages {$argv[2]}
+    set package {$argv[3]}
+
+    if not test -d {$repo}
+        echo "REPO 不存在：$repo"
+        return 2
+    end
+
+    if not test -d {$packages}
+        echo "PACKAGES 目录不存在：$packages"
+        return 3
+    end
+
+    if not test -d {$repo}/{$package}
+        echo "[$package] 在 REPO 中无法找到对应的 PACKAGE。"
+        return 4
+    end
+
+    if not test -f {$repo}/{$package}/PKGBUILD
+        echo "[$package] 在 REPO 中无法找到对应的 PKGBUILD。"
+        return 5
+    end
+
+    if not test -d {$packages}/{$package}
+        echo "[$package] 在 PACKAGES 中新建目录"
+        mkdir {$packages}/{$package}
+    end
+
+    if test -f {$packages}/{$package}/PKGBUILD
+        echo "[$package] 将会覆盖 PACKAGES 中的 PKGBUILD"
+    end
+
+    echo "[$package] $repo/$package/PKGBUILD -> $packages/$package/PKGBUILD"
+    cp {$repo}/{$package}/PKGBUILD {$packages}/{$package}/PKGBUILD
+end
+
+function dosync
+    if test 2 -gt (count {$argv})
+        echo "dosync:"
+        echo "用法: dosync [PATH] [PACKAGE]..."
+        echo "参数:"
+        echo "    [PATH]       Arch Linux CN 仓库路径。"
+        echo "    [PACKAGE]... 要同步的软件包名列表。"
+        return 1
+    end
+
+    set repo (realpath {$argv[1]})
+    set packages (realpath packages)
+
+    if not test -d {$repo}
+        echo "未能找到 Arch Linux CN 仓库，指定的 '$repo' 不存在。"
+        return 2
+    end
+
+    if not test -d {$packages}
+        echo "未能找到 packages 目录！请保证当前目录下存在 packages 目录。"
+        return 3
+    end
+
+    for package in {$argv[2..]}
+        sync {$repo} {$packages} {$package}
+    end
+end
+
+if test 2 -le (count {$argv})
+    echo "使用参数 $argv 运行 dosync…"
+    dosync {$argv}
+end