From aa51f3574d3d4d4e0fa59653eedd718fceb5d1bd Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Sun, 6 Sep 2026 05:22:12 +0400
Subject: chore: simplify project to engine docs and tests

Remove planning and acceptance scaffolding while retaining the native Vulkan mission preview, format readers, runtime algorithms, and ordinary Rust tests. Keep the book aligned with the runnable project and validate checked-in shaders without generated tool metadata.
---
 apps/fparkan-vulkan-smoke/build.rs | 134 -------------------------------------
 1 file changed, 134 deletions(-)
 delete mode 100644 apps/fparkan-vulkan-smoke/build.rs

(limited to 'apps/fparkan-vulkan-smoke/build.rs')

diff --git a/apps/fparkan-vulkan-smoke/build.rs b/apps/fparkan-vulkan-smoke/build.rs
deleted file mode 100644
index 24da219..0000000
--- a/apps/fparkan-vulkan-smoke/build.rs
+++ /dev/null
@@ -1,134 +0,0 @@
-//! Build-time provenance for native smoke artifacts.
-
-use std::env;
-use std::path::{Path, PathBuf};
-use std::process::Command;
-
-fn main() {
-    println!("cargo:rerun-if-env-changed=TARGET");
-    println!("cargo:rerun-if-env-changed=RUSTC");
-    println!("cargo:rerun-if-env-changed=RUSTUP_TOOLCHAIN");
-    println!("cargo:rerun-if-env-changed=GITHUB_SHA");
-    println!("cargo:rerun-if-env-changed=SOURCE_VERSION");
-    println!("cargo:rerun-if-env-changed=BUILD_VCS_NUMBER");
-
-    if let Ok(target) = env::var("TARGET") {
-        println!("cargo:rustc-env=FPARKAN_BUILD_TARGET_TRIPLE={target}");
-    }
-    if let Some(toolchain) = rustc_release() {
-        println!("cargo:rustc-env=FPARKAN_BUILD_RUST_TOOLCHAIN={toolchain}");
-    }
-
-    if let Some(workspace_root) = workspace_root() {
-        if let Some(git_dir) = git_dir(&workspace_root) {
-            emit_git_rerun_hints(&git_dir);
-        }
-
-        if let Some(commit_sha) = env_commit_sha().or_else(|| git_head_commit_sha(&workspace_root))
-        {
-            println!("cargo:rustc-env=FPARKAN_BUILD_COMMIT_SHA={commit_sha}");
-        }
-        if let Some(git_dirty) = git_dirty(&workspace_root) {
-            println!("cargo:rustc-env=FPARKAN_BUILD_GIT_DIRTY={git_dirty}");
-        }
-    }
-}
-
-fn workspace_root() -> Option<PathBuf> {
-    env::var_os("CARGO_MANIFEST_DIR")
-        .map(PathBuf::from)
-        .map(|manifest_dir| manifest_dir.join("../.."))
-}
-
-fn env_commit_sha() -> Option<String> {
-    ["GITHUB_SHA", "SOURCE_VERSION", "BUILD_VCS_NUMBER"]
-        .into_iter()
-        .filter_map(|name| env::var(name).ok())
-        .find(|value| is_commit_sha(value))
-}
-
-fn git_head_commit_sha(workspace_root: &Path) -> Option<String> {
-    let output = Command::new("git")
-        .args(["-C"])
-        .arg(workspace_root)
-        .args(["rev-parse", "HEAD"])
-        .output()
-        .ok()?;
-    if !output.status.success() {
-        return None;
-    }
-    let value = String::from_utf8(output.stdout).ok()?;
-    let value = value.trim().to_string();
-    is_commit_sha(&value).then_some(value)
-}
-
-fn git_dirty(workspace_root: &Path) -> Option<bool> {
-    let output = Command::new("git")
-        .args(["-C"])
-        .arg(workspace_root)
-        .args(["status", "--short"])
-        .output()
-        .ok()?;
-    output
-        .status
-        .success()
-        .then(|| !String::from_utf8_lossy(&output.stdout).trim().is_empty())
-}
-
-fn git_dir(workspace_root: &Path) -> Option<PathBuf> {
-    let output = Command::new("git")
-        .args(["-C"])
-        .arg(workspace_root)
-        .args(["rev-parse", "--git-dir"])
-        .output()
-        .ok()?;
-    if !output.status.success() {
-        return None;
-    }
-    let value = String::from_utf8(output.stdout).ok()?;
-    let value = value.trim();
-    (!value.is_empty()).then(|| workspace_root.join(value))
-}
-
-fn emit_git_rerun_hints(git_dir: &Path) {
-    let head = git_dir.join("HEAD");
-    println!("cargo:rerun-if-changed={}", head.display());
-    println!(
-        "cargo:rerun-if-changed={}",
-        git_dir.join("packed-refs").display()
-    );
-    println!("cargo:rerun-if-changed={}", git_dir.join("index").display());
-    let Some(reference) = std::fs::read_to_string(&head).ok().and_then(|value| {
-        value
-            .strip_prefix("ref: ")
-            .map(str::trim)
-            .map(ToOwned::to_owned)
-    }) else {
-        return;
-    };
-    println!(
-        "cargo:rerun-if-changed={}",
-        git_dir.join(reference).display()
-    );
-}
-
-fn is_commit_sha(value: &str) -> bool {
-    value.len() == 40 && value.chars().all(|ch| ch.is_ascii_hexdigit())
-}
-
-fn rustc_release() -> Option<String> {
-    let rustc = env::var("RUSTC").unwrap_or_else(|_| "rustc".to_string());
-    let output = Command::new(rustc).arg("-Vv").output().ok()?;
-    if !output.status.success() {
-        return None;
-    }
-    String::from_utf8(output.stdout)
-        .ok()?
-        .lines()
-        .find_map(|line| {
-            line.strip_prefix("release: ")
-                .map(str::trim)
-                .filter(|value| !value.is_empty())
-                .map(ToString::to_string)
-        })
-}
-- 
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