From 096995c04c4fd3378a537ea90ec17a461c230f6a Mon Sep 17 00:00:00 2001
From: Uko Kokņevičs
Date: Tue, 28 Dec 2021 21:14:25 +0200
Subject: Added a generated default config file

---
 build.zig | 35 ++++++++++++++++++++++++++++++++---
 es.ini.in |  7 +++++++
 2 files changed, 39 insertions(+), 3 deletions(-)
 create mode 100644 es.ini.in

diff --git a/build.zig b/build.zig
index a3bd8c5..6fac7d1 100644
--- a/build.zig
+++ b/build.zig
@@ -3,8 +3,31 @@ const std = @import("std");
 const Builder = std.build.Builder;
 const SemanticVersion = std.SemanticVersion;
 
+const share_prefix = "share/arkta/es/";
+
 const version = "0.3.0";
 
+const config = struct {
+    template: []const u8 = @embedFile("es.ini.in"),
+    default: struct {
+        line_limit: usize = 100,
+        page_overlap: usize = 2,
+        tab_stop: usize = 8,
+    } = .{},
+}{};
+
+fn installGeneratedFile(b: *Builder, comptime name: []const u8, data: []const u8) void {
+    const write_file = b.addWriteFile(name, data);
+
+    const write_file_install = b.addInstallFile(
+        write_file.getFileSource(name).?,
+        share_prefix ++ name,
+    );
+    write_file_install.step.dependOn(&write_file.step);
+
+    b.getInstallStep().dependOn(&write_file_install.step);
+}
+
 pub fn build(b: *Builder) void {
     const target = b.standardTargetOptions(.{});
     const mode = b.standardReleaseOptions();
@@ -15,9 +38,9 @@ pub fn build(b: *Builder) void {
         "es_version",
         SemanticVersion.parse(version) catch unreachable,
     );
-    options.addOption(usize, "default_line_limit", 100);
-    options.addOption(usize, "default_page_overlap", 2);
-    options.addOption(usize, "default_tab_stop", 8);
+    options.addOption(usize, "default_line_limit", config.default.line_limit);
+    options.addOption(usize, "default_page_overlap", config.default.page_overlap);
+    options.addOption(usize, "default_tab_stop", config.default.tab_stop);
 
     const exe = b.addExecutable("es", "src/main.zig");
     exe.setTarget(target);
@@ -25,6 +48,12 @@ pub fn build(b: *Builder) void {
     exe.addOptions("es-config", options);
     exe.install();
 
+    installGeneratedFile(
+        b,
+        "es.ini",
+        comptime std.fmt.comptimePrint(config.template, config.default),
+    );
+
     const run_cmd = exe.run();
     run_cmd.step.dependOn(b.getInstallStep());
     if (b.args) |args| {
diff --git a/es.ini.in b/es.ini.in
new file mode 100644
index 0000000..4de9e2a
--- /dev/null
+++ b/es.ini.in
@@ -0,0 +1,7 @@
+# This is the default es.ini config.
+#
+# Copy this config to ~/.config/arkta/es/es.ini to modify it.
+
+line_limit = {[line_limit]}
+page_overlap = {[page_overlap]}
+tab_stop = {[tab_stop]}
-- 
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