From 92b3b93a1c64076555db4794d6aaca389bc537a5 Mon Sep 17 00:00:00 2001
From: CJ van den Berg <cj@vdbonline.com>
Date: Mon, 18 Nov 2024 19:28:58 +0100
Subject: [PATCH] feat: add make_release helper script

---
 build.zig            | 25 +++++++++++++++++++++++-
 contrib/make_release | 45 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+), 1 deletion(-)
 create mode 100755 contrib/make_release

diff --git a/build.zig b/build.zig
index 84b135b..5cd077d 100644
--- a/build.zig
+++ b/build.zig
@@ -87,8 +87,20 @@ fn build_release(
     };
     const optimize = .ReleaseSafe;
 
+    var version = std.ArrayList(u8).init(b.allocator);
+    defer version.deinit();
+    gen_version(b, version.writer()) catch unreachable;
+    const write_file_step = b.addWriteFiles();
+    const version_file = write_file_step.add("version", version.items);
+    b.getInstallStep().dependOn(&b.addInstallFile(version_file, "version").step);
+
     for (targets) |t| {
         const target = b.resolveTargetQuery(t);
+        var triple = std.mem.splitScalar(u8, t.zigTriple(b.allocator) catch unreachable, '-');
+        const arch = triple.next() orelse unreachable;
+        const os = triple.next() orelse unreachable;
+        const target_path = std.mem.join(b.allocator, "-", &[_][]const u8{ os, arch }) catch unreachable;
+
         build_exe(
             b,
             run_step,
@@ -97,7 +109,7 @@ fn build_release(
             lint_step,
             target,
             optimize,
-            .{ .dest_dir = .{ .override = .{ .custom = t.zigTriple(b.allocator) catch unreachable } } },
+            .{ .dest_dir = .{ .override = .{ .custom = target_path } } },
             tracy_enabled,
             use_tree_sitter,
             strip orelse true,
@@ -506,3 +518,14 @@ fn gen_version_info(b: *std.Build, writer: anytype) !void {
     if (diff.len > 0)
         try writer.print("\nwith the following uncommited changes:\n\n{s}\n", .{diff});
 }
+
+fn gen_version(b: *std.Build, writer: anytype) !void {
+    var code: u8 = 0;
+
+    const describe = try b.runAllowFail(&[_][]const u8{ "git", "describe", "--always", "--tags" }, &code, .Ignore);
+    const diff_ = try b.runAllowFail(&[_][]const u8{ "git", "diff", "--stat", "--patch", "HEAD" }, &code, .Ignore);
+    const diff = std.mem.trimRight(u8, diff_, "\r\n ");
+    const version = std.mem.trimRight(u8, describe, "\r\n ");
+
+    try writer.print("{s}{s}", .{ version, if (diff.len > 0) "-dirty" else "" });
+}
diff --git a/contrib/make_release b/contrib/make_release
new file mode 100755
index 0000000..7b35463
--- /dev/null
+++ b/contrib/make_release
@@ -0,0 +1,45 @@
+#!/bin/bash
+set -e
+
+BASEDIR="$(cd "$(dirname "$0")/.." && pwd)"
+APPNAME="$(basename "$BASEDIR")"
+
+cd "$BASEDIR"
+
+if [ -e "release" ]; then
+    echo directory \"release\" already exists
+    exit 1
+fi
+
+echo building...
+
+./zig build -Dpackage_release --prefix release/build
+
+cd release/build
+
+VERSION=$(/bin/cat version)
+TARGETS=$(/bin/ls)
+
+for target in $TARGETS; do
+    if [ -d "$target" ]; then
+        cd "$target"
+        echo packing "$target"...
+        tar -czf "../../${APPNAME}-${VERSION}-${target}.tar.gz" -- *
+        cd ..
+    fi
+done
+
+cd ..
+rm -r build
+
+TARFILES=$(/bin/ls)
+
+for tarfile in $TARFILES; do
+    echo signing "$tarfile"...
+    gpg --local-user 4E6CF7234FFC4E14531074F98EB1E1BB660E3FB9 --detach-sig "$tarfile"
+done
+
+echo "done making release $VERSION"
+echo
+
+/bin/ls -lah