From fd05faf51a2f6681ba0914952b883473047cebfa Mon Sep 17 00:00:00 2001
From: Lee Cannon <leecannon@leecannon.xyz>
Date: Tue, 2 May 2023 15:54:13 -0700
Subject: [PATCH] print zls version and path during startup (#1165)

* print zls version during startup

* print zls executable path during startup
---
 src/main.zig | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/main.zig b/src/main.zig
index 3784ab3..4f26f6a 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -199,6 +199,8 @@ const ParseArgsResult = struct {
     replay_enabled: bool,
     replay_session_path: ?[]const u8,
     message_tracing_enabled: bool,
+
+    zls_exe_path: []const u8,
 };
 
 fn parseArgs(allocator: std.mem.Allocator) !ParseArgsResult {
@@ -208,6 +210,7 @@ fn parseArgs(allocator: std.mem.Allocator) !ParseArgsResult {
         .replay_enabled = false,
         .replay_session_path = null,
         .message_tracing_enabled = false,
+        .zls_exe_path = undefined,
     };
 
     const ArgId = enum {
@@ -256,7 +259,10 @@ fn parseArgs(allocator: std.mem.Allocator) !ParseArgsResult {
 
     var args_it = try std.process.ArgIterator.initWithAllocator(allocator);
     defer args_it.deinit();
-    if (!args_it.skip()) @panic("Could not find self argument");
+
+    if (args_it.next()) |zls_path| {
+        result.zls_exe_path = try allocator.dupe(u8, zls_path);
+    } else unreachable;
 
     // Makes behavior of enabling debug more logging consistent regardless of argument order.
     var specified = std.enums.EnumArray(ArgId, bool).initFill(false);
@@ -366,6 +372,7 @@ pub fn main() !void {
     const allocator: std.mem.Allocator = if (build_options.enable_failing_allocator) failing_allocator_state.allocator() else inner_allocator;
 
     const result = try parseArgs(allocator);
+    defer allocator.free(result.zls_exe_path);
     defer if (result.config_path) |path| allocator.free(path);
     defer if (result.replay_session_path) |path| allocator.free(path);
     switch (result.action) {
@@ -373,6 +380,8 @@ pub fn main() !void {
         .exit => return,
     }
 
+    logger.info("Starting ZLS {s} @ '{s}'", .{ build_options.version, result.zls_exe_path });
+
     var config = try getConfig(allocator, result.config_path);
     defer std.json.parseFree(Config, config.config, .{ .allocator = allocator });
     defer if (config.config_path) |path| allocator.free(path);