feat: windows support

.gitignore

@@ -8,3 +8,4 @@ zig-out-*
 # libarchive
 *.o
 *.a
+.zig-cache

build.zig

@@ -31,7 +31,7 @@ pub fn build(b: *std.Build) void {
         .name = "zvm",
         .root_source_file = .{ .src_path = .{ .owner = b, .sub_path = "src/main.zig" } },
         .target = target,
-        .optimize = .ReleaseFast,
+        .optimize = optimize,
         .version = version,
     });
 

src/alias.zig

@@ -1,8 +1,10 @@
 const std = @import("std");
+const builtin = @import("builtin");
+const tools = @import("tools.zig");
 
 pub fn setZigVersion(version: []const u8) !void {
     const allocator = std.heap.page_allocator;
-    const userHome = getUserHome();
+    const userHome = tools.getHome();
 
     const zigPath = try std.fs.path.join(allocator, &[_][]const u8{ userHome, ".zm", "versions", version });
     defer allocator.free(zigPath);
@@ -14,19 +16,93 @@ pub fn setZigVersion(version: []const u8) !void {
     try verifyZigVersion(allocator, version);
 }
 
-fn getUserHome() []const u8 {
-    return std.posix.getenv("HOME") orelse ".";
+fn updateSymlink(zigPath: []const u8, symlinkPath: []const u8) !void {
+    if (builtin.os.tag == .windows) {
+        if (std.fs.path.dirname(symlinkPath)) |dirname| {
+            var parent_dir = try std.fs.openDirAbsolute(dirname, .{
+                .iterate = true,
+            });
+            defer parent_dir.close();
+            try parent_dir.deleteTree(std.fs.path.basename(symlinkPath));
+        } else {
+            @panic("sorry, dirname is not avaiable!");
+        }
+        if (doesDirExist(symlinkPath)) try std.fs.deleteDirAbsolute(symlinkPath);
+        try copyDir(zigPath, symlinkPath);
+    } else {
+        if (doesFileExist(symlinkPath)) try std.fs.cwd().deleteFile(symlinkPath);
+        std.posix.symlink(zigPath, symlinkPath) catch |err| switch (err) {
+            error.PathAlreadyExists => {
+                try std.fs.cwd().deleteFile(symlinkPath);
+                try std.posix.symlink(zigPath, symlinkPath);
+            },
+            else => return err,
+        };
+    }
 }
 
-fn updateSymlink(zigPath: []const u8, symlinkPath: []const u8) !void {
-    if (doesFileExist(symlinkPath)) try std.fs.cwd().deleteFile(symlinkPath);
-    std.posix.symlink(zigPath, symlinkPath) catch |err| switch (err) {
-        error.PathAlreadyExists => {
-            try std.fs.cwd().deleteFile(symlinkPath);
-            try std.posix.symlink(zigPath, symlinkPath);
+fn copyDir(source_dir: []const u8, dest_dir: []const u8) !void {
+    var source = try std.fs.openDirAbsolute(
+        source_dir,
+        .{ .iterate = true },
+    );
+    defer source.close();
+
+    // try make dir
+    std.fs.makeDirAbsolute(dest_dir) catch |err| switch (err) {
+        error.PathAlreadyExists => {},
+        else => {
+            tools.log.err("Failed to create directory: {s}", .{dest_dir});
+            return err;
         },
-        else => return err,
     };
+
+    var dest = try std.fs.openDirAbsolute(
+        dest_dir,
+        .{ .iterate = true },
+    );
+    defer dest.close();
+
+    var iterate = source.iterate();
+    const allocator = tools.getAllocator();
+    while (try iterate.next()) |entry| {
+        const entry_name = entry.name;
+
+        const source_sub_path = try std.fs.path.join(
+            allocator,
+            &.{ source_dir, entry_name },
+        );
+        defer allocator.free(source_sub_path);
+
+        const dest_sub_path = try std.fs.path.join(
+            allocator,
+            &.{ dest_dir, entry_name },
+        );
+        defer allocator.free(dest_sub_path);
+
+        switch (entry.kind) {
+            .directory => {
+                try copyDir(source_sub_path, dest_sub_path);
+            },
+            .file => {
+                try std.fs.copyFileAbsolute(source_sub_path, dest_sub_path, .{});
+            },
+            else => {},
+        }
+    }
+}
+
+fn doesDirExist(path: []const u8) bool {
+    const result = blk: {
+        _ = std.fs.openDirAbsolute(path, .{}) catch |err| {
+            switch (err) {
+                error.FileNotFound => break :blk false,
+                else => break :blk true,
+            }
+        };
+        break :blk true;
+    };
+    return result;
 }
 
 fn doesFileExist(path: []const u8) bool {
@@ -54,7 +130,7 @@ fn verifyZigVersion(allocator: std.mem.Allocator, expectedVersion: []const u8) !
 }
 
 fn retrieveZigVersion(allocator: std.mem.Allocator) ![]u8 {
-    const userHome = getUserHome();
+    const userHome = tools.getHome();
     const symlinkPath = try std.fs.path.join(allocator, &[_][]const u8{ userHome, ".zm", "current" });
     defer allocator.free(symlinkPath);
 

src/download.zig

@@ -1,5 +1,6 @@
 const std = @import("std");
 const builtin = @import("builtin");
+const tools = @import("tools.zig");
 const sha2 = @import("std").crypto.hash.sha2;
 const architecture = @import("architecture.zig");
 const Progress = std.Progress;
@@ -10,11 +11,6 @@ const crypto = std.crypto;
 
 const archive_ext = if (builtin.os.tag == .windows) "zip" else "tar.xz";
 
-fn getZvmPathSegment(segment: []const u8) ![]u8 {
-    const user_home = std.posix.getenv("HOME") orelse ".";
-    return std.fs.path.join(std.heap.page_allocator, &[_][]const u8{ user_home, ".zm", segment });
-}
-
 pub fn content(allocator: std.mem.Allocator, version: []const u8, url: []const u8) !?[32]u8 {
     // Initialize the Progress structure
     const root_node = Progress.start(.{
@@ -24,11 +20,11 @@ pub fn content(allocator: std.mem.Allocator, version: []const u8, url: []const u
 
     defer root_node.end();
 
+    const data_allocator = tools.getAllocator();
     // Ensure version directory exists before any operation
-    const version_path = try getZvmPathSegment("versions");
-    defer allocator.free(version_path);
+    const version_path = try tools.getZvmPathSegment(data_allocator, "versions");
+    defer data_allocator.free(version_path);
 
-    defer allocator.free(version_path);
     std.fs.cwd().makePath(version_path) catch |err| switch (err) {
         error.PathAlreadyExists => {
             // The path already exists and is a directory, nothing to do here
@@ -44,8 +40,8 @@ pub fn content(allocator: std.mem.Allocator, version: []const u8, url: []const u
     const version_folder_name = try std.fmt.allocPrint(allocator, "versions/{s}", .{version});
     defer allocator.free(version_folder_name);
 
-    const version_folder_path = try getZvmPathSegment(version_folder_name);
-    defer allocator.free(version_folder_path);
+    const version_folder_path = try tools.getZvmPathSegment(data_allocator, version_folder_name);
+    defer data_allocator.free(version_folder_path);
 
     if (checkExistingVersion(version_folder_path)) {
         std.debug.print("→ Version {s} is already installed.\n", .{version});
@@ -91,7 +87,13 @@ fn confirmUserChoice() bool {
     return std.ascii.toLower(buffer[0]) == 'y';
 }
 
-fn downloadAndExtract(allocator: std.mem.Allocator, uri: std.Uri, version_path: []const u8, version: []const u8, root_node: std.Progress.Node) ![32]u8 {
+fn downloadAndExtract(
+    allocator: std.mem.Allocator,
+    uri: std.Uri,
+    version_path: []const u8,
+    version: []const u8,
+    root_node: std.Progress.Node,
+) ![32]u8 {
     var client = std.http.Client{ .allocator = allocator };
     defer client.deinit();
 
@@ -149,9 +151,13 @@ fn downloadAndExtract(allocator: std.mem.Allocator, uri: std.Uri, version_path:
     const c_allocator = std.heap.c_allocator;
 
     // ~/.zm/versions/zig-macos-x86_64-0.10.0.tar.xz
-    const zvm_path = try getZvmPathSegment("");
-    const downloaded_file_path = try std.fs.path.join(allocator, &.{ zvm_path, file_name });
-    defer allocator.free(downloaded_file_path);
+    const data_allocator = tools.getAllocator();
+
+    const zvm_path = try tools.getZvmPathSegment(data_allocator, "");
+    defer data_allocator.free(zvm_path);
+
+    const downloaded_file_path = try std.fs.path.join(data_allocator, &.{ zvm_path, file_name });
+    defer data_allocator.free(downloaded_file_path);
 
     std.debug.print("Downloaded file path: {s}\n", .{downloaded_file_path});
 
@@ -179,8 +185,8 @@ fn downloadAndExtract(allocator: std.mem.Allocator, uri: std.Uri, version_path:
 }
 
 fn openOrCreateZvmDir() !std.fs.Dir {
-    const zvm_path = try getZvmPathSegment("");
-    defer std.heap.page_allocator.free(zvm_path);
+    const zvm_path = try tools.getZvmPathSegment(tools.getAllocator(), "");
+    defer tools.getAllocator().free(zvm_path);
 
     const openDirOptions = .{ .access_sub_paths = true, .no_follow = false };
     const potentialDir = std.fs.cwd().openDir(zvm_path, openDirOptions);

src/extract.zig

@@ -1,8 +1,48 @@
 const std = @import("std");
+const builtin = @import("builtin");
+const tools = @import("tools.zig");
 
 pub fn extract_tarxz_to_dir(allocator: std.mem.Allocator, outDir: std.fs.Dir, file: std.fs.File) !void {
-    var buffered_reader = std.io.bufferedReader(file.reader());
-    var decompressed = try std.compress.xz.decompress(allocator, buffered_reader.reader());
-    defer decompressed.deinit();
-    try std.tar.pipeToFileSystem(outDir, decompressed.reader(), .{ .mode_mode = .executable_bit_only, .strip_components = 1 });
+    if (builtin.os.tag == .windows) {
+        try extract_zip_dir(outDir, file);
+    } else {
+        var buffered_reader = std.io.bufferedReader(file.reader());
+        var decompressed = try std.compress.xz.decompress(allocator, buffered_reader.reader());
+        defer decompressed.deinit();
+        try std.tar.pipeToFileSystem(outDir, decompressed.reader(), .{ .mode_mode = .executable_bit_only, .strip_components = 1 });
+    }
+}
+
+pub fn extract_zip_dir(outDir: std.fs.Dir, file: std.fs.File) !void {
+    var arena = std.heap.ArenaAllocator.init(tools.getAllocator());
+    defer arena.deinit();
+
+    const allocator = arena.allocator();
+
+    const tmp_path = try tools.getZvmPathSegment(allocator, "tmpdir");
+    defer std.fs.deleteDirAbsolute(tmp_path) catch unreachable;
+
+    // make tmp dir
+    try std.fs.makeDirAbsolute(tmp_path);
+    var tmp_dir = try std.fs.openDirAbsolute(tmp_path, .{ .iterate = true });
+
+    try std.zip.extract(tmp_dir, file.seekableStream(), .{});
+
+    var iterate = tmp_dir.iterate();
+
+    var sub_dir = blk: {
+        const entry = try iterate.next() orelse return error.NotFound;
+        break :blk try tmp_dir.openDir(entry.name, .{
+            .iterate = true,
+        });
+    };
+    defer sub_dir.close();
+    const sub_path = try sub_dir.realpathAlloc(allocator, "");
+    defer std.fs.deleteDirAbsolute(sub_path) catch unreachable;
+
+    var sub_iterate = sub_dir.iterate();
+
+    while (try sub_iterate.next()) |entry| {
+        try std.fs.rename(sub_dir, entry.name, outDir, entry.name);
+    }
 }

src/main.zig

@@ -1,4 +1,5 @@
 const std = @import("std");
+const tools = @import("tools.zig");
 const Command = @import("command.zig").Command;
 const handleCommands = @import("command.zig").handleCommands;
 
@@ -14,9 +15,14 @@ const CommandOption = struct {
 };
 
 pub fn main() !void {
-    const allocator = std.heap.page_allocator;
-    const args = try std.process.argsAlloc(allocator);
-    defer std.process.argsFree(allocator, args);
+    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+    defer if (gpa.deinit() == .leak) @panic("memory leaked!");
+
+    try tools.dataInit(gpa.allocator());
+    defer tools.dataDeinit();
+
+    const args = try std.process.argsAlloc(tools.getAllocator());
+    defer std.process.argsFree(tools.getAllocator(), args);
 
     const cmd_data = try parseArgs(args);
     try handleCommands(cmd_data.cmd, cmd_data.params);

src/tools.zig

@@ -0,0 +1,41 @@
+const std = @import("std");
+const builtin = @import("builtin");
+
+var allocator: std.mem.Allocator = undefined;
+
+var home_dir: []const u8 = undefined;
+
+pub const log = std.log.scoped(.zvm);
+
+/// init the data
+pub fn dataInit(tmp_allocator: std.mem.Allocator) !void {
+    allocator = tmp_allocator;
+    // setting the home dir
+    home_dir = if (builtin.os.tag == .windows)
+        try std.process.getEnvVarOwned(allocator, "USERPROFILE")
+    else
+        std.posix.getenv("HOME") orelse ".";
+}
+
+/// deinit the data
+pub fn dataDeinit() void {
+    if (builtin.os.tag == .windows)
+        allocator.free(home_dir);
+}
+
+/// get home dir
+pub fn getHome() []const u8 {
+    return home_dir;
+}
+
+/// get the allocator
+pub fn getAllocator() std.mem.Allocator {
+    return allocator;
+}
+
+pub fn getZvmPathSegment(_allocator: std.mem.Allocator, segment: []const u8) ![]u8 {
+    return std.fs.path.join(
+        _allocator,
+        &[_][]const u8{ getHome(), ".zm", segment },
+    );
+}