From 86629d4e85c94324c5049cdbd75c09194b918c76 Mon Sep 17 00:00:00 2001
From: 魏曹先生 <1992414357@qq.com>
Date: Sat, 18 Oct 2025 18:23:24 +0800
Subject: feat: add build_helper crate for publishing

- Add Cargo.toml and main.rs for build helper
- Support custom cargo pub command for binary distribution
---
 crates/build_helper/src/bin/exporter.rs | 145 ++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 crates/build_helper/src/bin/exporter.rs

(limited to 'crates/build_helper/src')

diff --git a/crates/build_helper/src/bin/exporter.rs b/crates/build_helper/src/bin/exporter.rs
new file mode 100644
index 0000000..edc7e9c
--- /dev/null
+++ b/crates/build_helper/src/bin/exporter.rs
@@ -0,0 +1,145 @@
+use std::{collections::VecDeque, env::current_dir};
+
+use colored::Colorize;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    println!("     {} `.cargo/cargo.toml`", "Reading".green().bold());
+
+    let start_time = std::time::Instant::now();
+    let mut copied_files = 0;
+
+    let target_dir = current_target_dir().expect("Failed to get target directory");
+    let publish_dir = current_publish_dir().expect("Failed to get publish directory");
+    let publish_binaries = publish_binaries().expect("Failed to get publish binaries");
+
+    if publish_dir.exists() {
+        std::fs::remove_dir_all(&publish_dir)?;
+    }
+    std::fs::create_dir_all(&publish_dir)?;
+
+    let mut queue = VecDeque::new();
+    queue.push_back(target_dir);
+
+    while let Some(current_dir) = queue.pop_front() {
+        let entries = match std::fs::read_dir(&current_dir) {
+            Ok(entries) => entries,
+            Err(_) => continue,
+        };
+
+        for entry in entries.flatten() {
+            let path = entry.path();
+            let metadata = match entry.metadata() {
+                Ok(metadata) => metadata,
+                Err(_) => continue,
+            };
+
+            if metadata.is_dir() {
+                queue.push_back(path);
+                continue;
+            }
+
+            if let Some(file_name) = path.file_name().and_then(|n| n.to_str())
+                && publish_binaries.contains(&file_name.to_string()) {
+                    let parent_dir_name = path
+                        .parent()
+                        .and_then(|p| p.file_name())
+                        .and_then(|n| n.to_str())
+                        .unwrap_or("");
+
+                    let dest_path = publish_dir.join(parent_dir_name).join(file_name);
+
+                    if let Some(parent) = dest_path.parent() {
+                        std::fs::create_dir_all(parent)?;
+                    }
+
+                    println!(
+                        "        {} `{}/{}` ({})",
+                        "Copy".green().bold(),
+                        parent_dir_name,
+                        file_name,
+                        path.display()
+                    );
+                    std::fs::copy(&path, &dest_path)?;
+                    copied_files += 1;
+                }
+        }
+    }
+
+    let duration = start_time.elapsed();
+    println!();
+    println!(
+        "Done (in {:.1}s) Publish {} {}",
+        duration.as_secs_f32(),
+        copied_files,
+        if copied_files == 1 { "file" } else { "files" }
+    );
+
+    Ok(())
+}
+
+/// Get a target directory from the cargo config
+/// Returns the complete path relative to the current directory
+fn get_target_dir(section: &str) -> Result<std::path::PathBuf, std::io::Error> {
+    let current = current_dir()?;
+    let config_file = current.join(".cargo").join("config.toml");
+    let config_content = std::fs::read_to_string(&config_file)?;
+    let config: toml::Value = toml::from_str(&config_content).map_err(|e| {
+        std::io::Error::new(
+            std::io::ErrorKind::InvalidData,
+            format!("Failed to parse config.toml: {}", e),
+        )
+    })?;
+    let target_dir_str = config[section]["target-dir"].as_str().ok_or_else(|| {
+        std::io::Error::new(
+            std::io::ErrorKind::InvalidData,
+            "target-dir not found or not a string",
+        )
+    })?;
+
+    Ok(current.join(target_dir_str))
+}
+
+/// Get the binaries list from the cargo config
+/// Returns a vector of binary names
+fn get_array(section: &str, array_name: &str) -> Result<Vec<String>, std::io::Error> {
+    let current = current_dir()?;
+    let config_file = current.join(".cargo").join("config.toml");
+    let config_content = std::fs::read_to_string(&config_file)?;
+    let config: toml::Value = toml::from_str(&config_content).map_err(|e| {
+        std::io::Error::new(
+            std::io::ErrorKind::InvalidData,
+            format!("Failed to parse config.toml: {}", e),
+        )
+    })?;
+
+    if let Some(array) = config[section][array_name].as_array() {
+        let arr: Vec<String> = array
+            .iter()
+            .filter_map(|v| v.as_str().map(String::from))
+            .collect();
+        Ok(arr)
+    } else {
+        Ok(Vec::new())
+    }
+}
+
+/// Get the target directory of the current project
+/// By reading the `build.target-dir` configuration item in the `.cargo/config.toml` file
+/// Returns the complete path relative to the current directory
+fn current_target_dir() -> Result<std::path::PathBuf, std::io::Error> {
+    get_target_dir("build")
+}
+
+/// Get the publish directory of the current project
+/// By reading the `publish.target-dir` configuration item in the `.cargo/config.toml` file
+/// Returns the complete path relative to the current directory
+fn current_publish_dir() -> Result<std::path::PathBuf, std::io::Error> {
+    get_target_dir("publish")
+}
+
+/// Get the binaries list for publishing
+// By reading the `publish.binaries` configuration item in the `.cargo/config.toml` file
+// Returns a vector of binary names
+fn publish_binaries() -> Result<Vec<String>, std::io::Error> {
+    get_array("publish", "binaries")
+}
-- 
cgit