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docs: add Rust-based README generator

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77
README.md
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@ -1,5 +1,9 @@
# 🧬 LPKG – Lightweight Package Manager # 🧬 LPKG – Lightweight Package Manager
<p align="center">
<img src="assets/logo.svg" alt="LPKG logo" width="360" />
</p>
LPKG is a minimalistic package manager written in Rust, designed for fast and simple software management on Unix-like systems. It emphasizes reproducibility and declarative configuration, leveraging **Nix Flakes** for development and deployment. LPKG is a minimalistic package manager written in Rust, designed for fast and simple software management on Unix-like systems. It emphasizes reproducibility and declarative configuration, leveraging **Nix Flakes** for development and deployment.
--- ---
@ -82,6 +86,29 @@ Build the project:
cargo build cargo build
``` ```
LPKG ships with tuned Cargo profiles:
* **Dev builds** (`cargo build`) use `opt-level=0`, lots of codegen units, and incremental compilation for quick feedback while hacking.
* **Release builds** (`cargo build --release`) enable `-O3`, fat LTO, and panic aborts for slim, fast binaries.
* **GraphQL builds** add the server components when you need them:
```bash
cargo build --features graphql
```
**PGO builds** are a two-step flow using the provided Cargo aliases:
```bash
# 1) Instrument
RUSTFLAGS="-Cprofile-generate=target/pgo-data" cargo pgo-instrument
# run representative workloads to emit *.profraw files under target/pgo-data
llvm-profdata merge -o target/pgo-data/lpkg.profdata target/pgo-data/*.profraw
# 2) Optimise with the collected profile
RUSTFLAGS="-Cprofile-use=target/pgo-data/lpkg.profdata -Cllvm-args=-pgo-warn-missing-function" \
cargo pgo-build
```
Run tests: Run tests:
```bash ```bash
@ -94,11 +121,33 @@ You can also run the project directly in the flake shell:
nix run nix run
``` ```
## 🕸️ GraphQL API
LPKG now ships a lightweight GraphQL server powered by Actix Web and Juniper.
* Start the server with `cargo run --features graphql --bin graphql_server` (set `LPKG_GRAPHQL_ADDR` to override `127.0.0.1:8080`).
* Query endpoint: `http://127.0.0.1:8080/graphql`
* Interactive playground: `http://127.0.0.1:8080/playground`
Example query:
```graphql
{
packages(limit: 5) {
name
version
enableLto
}
randomJoke {
package
text
}
}
```
### AI metadata tooling ### AI metadata tooling
The AI metadata store under `ai/metadata/` comes with a helper CLI to The AI metadata store under `ai/metadata/` comes with a helper CLI to validate package records against the JSON schema and regenerate `index.json` after adding new entries:
validate package records against the JSON schema and regenerate
`index.json` after adding new entries:
```bash ```bash
cargo run --bin metadata_indexer -- --base-dir . validate cargo run --bin metadata_indexer -- --base-dir . validate
@ -107,10 +156,7 @@ cargo run --bin metadata_indexer -- --base-dir . index
Use `--compact` with `index` if you prefer single-line JSON output. Use `--compact` with `index` if you prefer single-line JSON output.
To draft metadata for a specific book page, you can run the harvest mode. To draft metadata for a specific book page, you can run the harvest mode. It fetches the XHTML, scrapes the build commands, and emits a schema-compliant JSON skeleton (pass `--dry-run` to inspect the result without writing to disk):
It fetches the XHTML, scrapes the build commands, and emits a schema-
compliant JSON skeleton (pass `--dry-run` to inspect the result without
writing to disk):
```bash ```bash
cargo run --bin metadata_indexer -- \ cargo run --bin metadata_indexer -- \
@ -126,8 +172,7 @@ Keep the jhalfs manifests current with:
cargo run --bin metadata_indexer -- --base-dir . refresh cargo run --bin metadata_indexer -- --base-dir . refresh
``` ```
Passing `--books mlfs,blfs` restricts the refresh to specific books, and Passing `--books mlfs,blfs` restricts the refresh to specific books, and `--force` bypasses the local cache.
`--force` bypasses the local cache.
To materialise a Rust module from harvested metadata: To materialise a Rust module from harvested metadata:
@ -142,17 +187,15 @@ Add `--overwrite` to regenerate an existing module directory.
## 📚 Documentation ## 📚 Documentation
- [Architecture Overview](docs/ARCHITECTURE.md) – high-level tour of the crate * [Architecture Overview](docs/ARCHITECTURE.md) – high-level tour of the crate layout, binaries, and supporting modules.
layout, binaries, and supporting modules. * [Metadata Harvesting Pipeline](docs/METADATA_PIPELINE.md) – how the metadata indexer produces and validates the JSON records under `ai/metadata/`.
- [Metadata Harvesting Pipeline](docs/METADATA_PIPELINE.md) – how the metadata * [Package Module Generation](docs/PACKAGE_GENERATION.md) – end-to-end guide for converting harvested metadata into Rust modules under `src/pkgs/by_name/`.
indexer produces and validates the JSON records under `ai/metadata/`. * Concept corner: [Nixette](concepts/nixette/README.md) – a NixOS × Gentoo transfemme mash-up dreamed up for fun brand explorations.
- [Package Module Generation](docs/PACKAGE_GENERATION.md) – end-to-end guide * `ai/notes.md` – scratchpad for ongoing research tasks (e.g., deeper jhalfs integration).
for converting harvested metadata into Rust modules under `src/pkgs/by_name/`.
- `ai/notes.md` – scratchpad for ongoing research tasks (e.g., deeper jhalfs
integration).
--- ---
## 📄 License ## 📄 License
LPKG is licensed under the [MIT License](LICENSE). LPKG is licensed under the [MIT License](LICENSE).

196
src/bin/readme_gen.rs Normal file
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@ -0,0 +1,196 @@
use std::fs;
fn main() -> anyhow::Result<()> {
let readme = Readme::build();
fs::write("README.md", readme)?;
Ok(())
}
struct MarkdownDoc {
buffer: String,
}
impl MarkdownDoc {
fn new() -> Self {
Self {
buffer: String::new(),
}
}
fn heading(mut self, level: u8, text: &str) -> Self {
self.buffer.push_str(&"#".repeat(level as usize));
self.buffer.push(' ');
self.buffer.push_str(text);
self.buffer.push_str("\n\n");
self
}
fn raw(mut self, text: &str) -> Self {
self.buffer.push_str(text);
self.buffer.push('\n');
self
}
fn paragraph(mut self, text: &str) -> Self {
self.buffer.push_str(text);
self.buffer.push_str("\n\n");
self
}
fn horizontal_rule(mut self) -> Self {
self.buffer.push_str("---\n\n");
self
}
fn bullet_list<I, S>(mut self, items: I) -> Self
where
I: IntoIterator<Item = S>,
S: AsRef<str>,
{
for item in items {
self.buffer.push_str("* ");
self.buffer.push_str(item.as_ref());
self.buffer.push('\n');
}
self.buffer.push('\n');
self
}
fn code_block(mut self, language: &str, code: &str) -> Self {
self.buffer.push_str("```");
self.buffer.push_str(language);
self.buffer.push('\n');
self.buffer.push_str(code.trim_matches('\n'));
self.buffer.push_str("\n```\n\n");
self
}
fn finish(self) -> String {
self.buffer
}
}
struct Readme;
impl Readme {
fn build() -> String {
let doc = MarkdownDoc::new()
.heading(1, "🧬 LPKG – Lightweight Package Manager")
.raw("<p align=\"center\">\n <img src=\"assets/logo.svg\" alt=\"LPKG logo\" width=\"360\" />\n</p>\n")
.paragraph("LPKG is a minimalistic package manager written in Rust, designed for fast and simple software management on Unix-like systems. It emphasizes reproducibility and declarative configuration, leveraging **Nix Flakes** for development and deployment.")
.horizontal_rule()
.heading(2, "🚀 Features")
.bullet_list([
"**Fast & Lightweight** – Minimal resource usage and quick operations.",
"**Rust-Powered** – Safe and concurrent code with Rust.",
"**Cross-Platform** – Works on Linux and macOS.",
"**Declarative Builds** – Fully reproducible with Nix Flakes.",
"**Simple CLI** – Intuitive commands for managing packages.",
])
.horizontal_rule()
.heading(2, "⚙️ Installation")
.heading(3, "Using Cargo")
.code_block("bash", "cargo install lpkg")
.heading(3, "Using Nix Flakes")
.paragraph("If you have Nix with flakes enabled:")
.code_block("bash", "nix profile install github:lesbiannix/lpkg")
.paragraph("Or to run without installing:")
.code_block("bash", "nix run github:lesbiannix/lpkg")
.horizontal_rule()
.heading(2, "🧰 Usage")
.paragraph("Basic command structure:")
.code_block("bash", "lpkg [command] [package]")
.paragraph("Common commands:")
.bullet_list([
"`install` – Install a package",
"`remove` – Remove a package",
"`update` – Update the package list",
"`upgrade` – Upgrade all installed packages",
])
.paragraph("For detailed usage:")
.code_block("bash", "lpkg --help")
.horizontal_rule()
.heading(2, "🔧 Development with Flakes")
.paragraph("Clone the repository:")
.code_block("bash", "git clone https://github.com/lesbiannix/lpkg.git\ncd lpkg")
.paragraph("Enter the flake development shell:")
.code_block("bash", "nix develop")
.paragraph("Build the project:")
.code_block("bash", "cargo build")
.paragraph("LPKG ships with tuned Cargo profiles:")
.bullet_list([
"**Dev builds** (`cargo build`) use `opt-level=0`, lots of codegen units, and incremental compilation for quick feedback while hacking.",
"**Release builds** (`cargo build --release`) enable `-O3`, fat LTO, and panic aborts for slim, fast binaries.",
"**GraphQL builds** add the server components when you need them:",
])
.code_block("bash", "cargo build --features graphql")
.paragraph("**PGO builds** are a two-step flow using the provided Cargo aliases:")
.code_block(
"bash",
r#"# 1) Instrument
RUSTFLAGS="-Cprofile-generate=target/pgo-data" cargo pgo-instrument
# run representative workloads to emit *.profraw files under target/pgo-data
llvm-profdata merge -o target/pgo-data/lpkg.profdata target/pgo-data/*.profraw
# 2) Optimise with the collected profile
RUSTFLAGS="-Cprofile-use=target/pgo-data/lpkg.profdata -Cllvm-args=-pgo-warn-missing-function" \
cargo pgo-build"#,
)
.paragraph("Run tests:")
.code_block("bash", "cargo test")
.paragraph("You can also run the project directly in the flake shell:")
.code_block("bash", "nix run")
.heading(2, "🕸️ GraphQL API")
.paragraph("LPKG now ships a lightweight GraphQL server powered by Actix Web and Juniper.")
.bullet_list([
"Start the server with `cargo run --features graphql --bin graphql_server` (set `LPKG_GRAPHQL_ADDR` to override `127.0.0.1:8080`).",
"Query endpoint: `http://127.0.0.1:8080/graphql`",
"Interactive playground: `http://127.0.0.1:8080/playground`",
])
.paragraph("Example query:")
.code_block("graphql", r"{
packages(limit: 5) {
name
version
enableLto
}
randomJoke {
package
text
}
}")
.heading(3, "AI metadata tooling")
.paragraph("The AI metadata store under `ai/metadata/` comes with a helper CLI to validate package records against the JSON schema and regenerate `index.json` after adding new entries:")
.code_block("bash", r"cargo run --bin metadata_indexer -- --base-dir . validate
cargo run --bin metadata_indexer -- --base-dir . index")
.paragraph("Use `--compact` with `index` if you prefer single-line JSON output.")
.paragraph("To draft metadata for a specific book page, you can run the harvest mode. It fetches the XHTML, scrapes the build commands, and emits a schema-compliant JSON skeleton (pass `--dry-run` to inspect the result without writing to disk):")
.code_block("bash", r"cargo run --bin metadata_indexer -- \
--base-dir . harvest \
--book mlfs \
--page chapter05/binutils-pass1 \
--dry-run")
.paragraph("Keep the jhalfs manifests current with:")
.code_block("bash", "cargo run --bin metadata_indexer -- --base-dir . refresh")
.paragraph("Passing `--books mlfs,blfs` restricts the refresh to specific books, and `--force` bypasses the local cache.")
.paragraph("To materialise a Rust module from harvested metadata:")
.code_block("bash", r"cargo run --bin metadata_indexer -- \
--base-dir . generate \
--metadata ai/metadata/packages/mlfs/binutils-pass-1.json \
--output target/generated/by_name")
.paragraph("Add `--overwrite` to regenerate an existing module directory.")
.heading(2, "📚 Documentation")
.bullet_list([
"[Architecture Overview](docs/ARCHITECTURE.md) – high-level tour of the crate layout, binaries, and supporting modules.",
"[Metadata Harvesting Pipeline](docs/METADATA_PIPELINE.md) – how the metadata indexer produces and validates the JSON records under `ai/metadata/`.",
"[Package Module Generation](docs/PACKAGE_GENERATION.md) – end-to-end guide for converting harvested metadata into Rust modules under `src/pkgs/by_name/`.",
"Concept corner: [Nixette](concepts/nixette/README.md) – a NixOS × Gentoo transfemme mash-up dreamed up for fun brand explorations.",
"`ai/notes.md` – scratchpad for ongoing research tasks (e.g., deeper jhalfs integration).",
])
.horizontal_rule()
.heading(2, "📄 License")
.paragraph("LPKG is licensed under the [MIT License](LICENSE).");
doc.finish()
}
}