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This commit is contained in:
Michael Zhang 2023-07-18 18:21:15 -05:00
parent 0ae4b0ba9e
commit 4ec8018de6
Signed by: michael
GPG key ID: BDA47A31A3C8EE6B
14 changed files with 406 additions and 0 deletions

5
.gitignore vendored
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@ -6,3 +6,8 @@ node_modules
/result* /result*
.solid .solid
/typedoc /typedoc
# Added by cargo
/target

285
Cargo.lock generated Normal file
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@ -0,0 +1,285 @@
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14
Cargo.toml Normal file
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@ -0,0 +1,14 @@
[package]
name = "panorama"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
anyhow = "1.0.72"
bincode = "1.3.3"
dirs = "5.0.1"
once_cell = "1.18.0"
redb = "1.0.5"
serde = { version = "1.0.171", features = ["derive"] }

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@ -39,6 +39,9 @@
devShells = { devShells = {
default = pkgs.mkShell ({ default = pkgs.mkShell ({
allowUnfree = true;
permittedInsecurePackages = [ "openssl-1.1.1u" ];
packages = with pkgs; [ packages = with pkgs; [
cargo-deny cargo-deny
cargo-edit cargo-edit

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src/db.rs Normal file
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@ -0,0 +1,63 @@
use std::path::Path;
use anyhow::Result;
use crate::db_keys::nodes_by_id;
pub struct PanoramaDb {
redb_db: redb::Database,
}
impl PanoramaDb {
pub fn open(path: impl AsRef<Path>) -> Result<Self> {
let redb_db = redb::Database::create(path)?;
Ok(Self { redb_db })
}
pub fn check(&mut self) -> Result<()> {
self.redb_db.check_integrity()?;
Ok(())
}
pub fn begin_read(&self) -> Result<ReadTransaction> {
let tx = self.redb_db.begin_read()?;
Ok(ReadTransaction { redb_tx: tx })
}
pub fn begin_write(&self) -> Result<WriteTransaction> {
let tx = self.redb_db.begin_write()?;
Ok(WriteTransaction { redb_tx: tx })
}
}
pub struct ReadTransaction<'db> {
redb_tx: redb::ReadTransaction<'db>,
}
impl<'db> ReadTransaction<'db> {}
pub struct WriteTransaction<'db> {
redb_tx: redb::WriteTransaction<'db>,
}
pub struct CreateNodeOptions {
label: String,
}
impl<'db> WriteTransaction<'db> {
pub fn create_node(&self) -> Result<()> {
let mut table = self.redb_tx.open_table(*nodes_by_id())?;
// Create the actual node
table.insert((), ())?;
// Create metadata keys
Ok(())
}
pub fn commit(self) -> Result<()> {
self.redb_tx.commit().map_err(|err| err.into())
}
}

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src/db_keys.rs Normal file
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@ -0,0 +1,14 @@
use once_cell::sync::OnceCell;
use redb::TableDefinition;
macro_rules! table_def {
($str:ident, $key:ty, $val:ty) => {
pub fn $str() -> &'static TableDefinition<'static, $key, $val> {
static INSTANCE: OnceCell<TableDefinition<'static, $key, $val>> =
OnceCell::new();
INSTANCE.get_or_init(|| TableDefinition::new(stringify!($str)))
}
};
}
table_def!(nodes_by_id, (), ());

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src/lib.rs Normal file
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@ -0,0 +1,5 @@
#[macro_use]
extern crate serde;
pub mod db;
pub mod db_keys;

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src/main.rs Normal file
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@ -0,0 +1,17 @@
use std::fs;
use anyhow::Result;
use panorama::db::PanoramaDb;
fn main() -> Result<()> {
let local_data_dir = dirs::data_local_dir().unwrap();
let panorama_data_dir = local_data_dir.join("panorama");
fs::create_dir_all(&panorama_data_dir)?;
let database_file_path = panorama_data_dir.join("data.redb");
let database = PanoramaDb::open(database_file_path)?;
println!("Hello, world!");
Ok(())
}