First working query of store_uuid

Cargo.lock

@@ -28,6 +28,12 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "cc"
+version = "1.0.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -133,6 +139,7 @@ dependencies = [
  "clap",
  "env_logger",
  "log",
+ "sqlite",
 ]
 
 [[package]]
@@ -147,6 +154,12 @@ version = "6.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ff7415e9ae3fff1225851df9e0d9e4e5479f947619774677a63572e55e80eff"
 
+[[package]]
+name = "pkg-config"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae"
+
 [[package]]
 name = "proc-macro-error"
 version = "1.0.4"
@@ -206,6 +219,36 @@ version = "0.6.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244"
 
+[[package]]
+name = "sqlite"
+version = "0.27.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2df8edd55685048550daaaf2be9024182f3523086cc86f7d50c136e55173e8c"
+dependencies = [
+ "libc",
+ "sqlite3-sys",
+]
+
+[[package]]
+name = "sqlite3-src"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d1815a7a02c996eb8e5c64f61fcb6fd9b12e593ce265c512c5853b2513635691"
+dependencies = [
+ "cc",
+ "pkg-config",
+]
+
+[[package]]
+name = "sqlite3-sys"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d47c99824fc55360ba00caf28de0b8a0458369b832e016a64c13af0ad9fbb9ee"
+dependencies = [
+ "libc",
+ "sqlite3-src",
+]
+
 [[package]]
 name = "strsim"
 version = "0.10.0"

Cargo.toml

@@ -21,3 +21,4 @@ path = "src/cli/main.rs"
 clap = { version = "4.0.14", features = ["derive"] }
 env_logger = "0.9.1"
 log = "0.4.17"
+sqlite = "0.27.0"

flake.lock

@@ -1,45 +1,28 @@
 {
   "nodes": {
-    "naersk": {
+    "crate2nix": {
-      "inputs": {
+      "flake": false,
-        "nixpkgs": "nixpkgs"
-      },
       "locked": {
-        "lastModified": 1662220400,
+        "lastModified": 1665362239,
-        "narHash": "sha256-9o2OGQqu4xyLZP9K6kNe1pTHnyPz0Wr3raGYnr9AIgY=",
+        "narHash": "sha256-vNMu88WotPaOfuzubfOsLcaHB9WwDfV5/drEzY8tpFo=",
-        "owner": "nix-community",
+        "owner": "kolloch",
-        "repo": "naersk",
+        "repo": "crate2nix",
-        "rev": "6944160c19cb591eb85bbf9b2f2768a935623ed3",
+        "rev": "cdcdd4950cc6ef1133b5f866a7c20dc06c130a84",
         "type": "github"
       },
       "original": {
-        "owner": "nix-community",
+        "owner": "kolloch",
-        "ref": "master",
+        "repo": "crate2nix",
-        "repo": "naersk",
         "type": "github"
       }
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1664266718,
+        "lastModified": 1653936696,
-        "narHash": "sha256-j2okM1ghRbJY1Akxpu/pkuxIvT9FSycLwUxAYUOr6PI=",
+        "narHash": "sha256-M6bJShji9AIDZ7Kh7CPwPBPb/T7RiVev2PAcOi4fxDQ=",
-        "owner": "NixOS",
+        "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "2e977bf954e84a981b15ff4d2442802ce9b675f9",
+        "rev": "ce6aa13369b667ac2542593170993504932eb836",
-        "type": "github"
-      },
-      "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
-      }
-    },
-    "nixpkgs_2": {
-      "locked": {
-        "lastModified": 1665634984,
-        "narHash": "sha256-zwXeMc96BD9iFxSB/SLr3dI8iYpqM+seX9qy6bGV+cw=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "cfea568da97a2668ef3cb3fc42eaacfb0e706807",
         "type": "github"
       },
       "original": {
@@ -51,8 +34,8 @@
     },
     "root": {
       "inputs": {
-        "naersk": "naersk",
+        "crate2nix": "crate2nix",
-        "nixpkgs": "nixpkgs_2",
+        "nixpkgs": "nixpkgs",
         "utils": "utils"
       }
     },

flake.nix

@@ -1,21 +1,39 @@
 {
   inputs = {
-    naersk.url = "github:nix-community/naersk/master";
+    #naersk.url = "github:nix-community/naersk/master";
     nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
     utils.url = "github:numtide/flake-utils";
+    crate2nix = {
+      url = "github:kolloch/crate2nix";
+      flake = false;
+    };
   };
 
-  outputs = { self, nixpkgs, utils, naersk }:
+  outputs = { self, nixpkgs, utils, crate2nix }:
     utils.lib.eachDefaultSystem (system:
       let
+        crateName = "nancy";
         pkgs = import nixpkgs { inherit system; };
-        naersk-lib = pkgs.callPackage naersk { };
+        inherit (import "${crate2nix}/tools.nix" { inherit pkgs; })
+          generatedCargoNix;
+        #naersk-lib = pkgs.callPackage naersk { };
+        project = import (generatedCargoNix {
+          name = crateName;
+          src = ./.;
+        }) {
+          inherit pkgs;
+          defaultCrateOverrides = pkgs.defaultCrateOverrides // {
+            # Crate dependency overrides go here
+          };
+        };
       in
       {
-        defaultPackage = naersk-lib.buildPackage ./.;
+        packages.${crateName} = project.rootCrate.build;
+        defaultPackage = self.packages.${system}.${crateName};
+        #defaultPackage = naersk-lib.buildPackage ./.;
         devShell = with pkgs; mkShell {
-          buildInputs = [ cargo rustc rustfmt pre-commit rustPackages.clippy ];
+          inputsFrom = builtins.attrValues self.packages.${system};
-          RUST_SRC_PATH = rustPlatform.rustLibSrc;
+          buildInputs = [ cargo rust-analyzer clippy rustfmt ];
         };
       });
 }

src/cli/main.rs

@@ -13,11 +13,9 @@ struct Cli {
 #[derive(Subcommand)]
 enum Commands {
     /// Record changes to a store directory (or a new store)
-    Record {
+    Record {},
-    },
     /// Check for changes in store and print basic statistics
-    Status {
+    Status {},
-    },
     /// Just say hello
     Hello {
         #[arg(short, long)]

src/lib/main.rs

@@ -1,9 +1,47 @@
 use log;
+use sqlite;
 
-mod store;
+pub struct Store<'a> {
+    conn: &'a sqlite::Connection,
+    uuid: &'a str,
+}
+
+#[derive(Debug)]
+pub enum DBError {
+    NoRowsReturned,
+    NoneValue,
+}
+
+pub fn get_uuid(conn: &sqlite::Connection) -> Result<String, DBError> {
+    let mut uuid = Err(DBError::NoRowsReturned);
+    conn.iterate(
+        "
+        SELECT value FROM local_metadata WHERE key = 'store_uuid';
+        ",
+        |pairs| {
+            uuid = match (*pairs)[0].1 {
+                Some(u) => Ok(u.to_string()),
+                None => Err(DBError::NoneValue),
+            };
+
+            false // only process the first row
+        },
+    );
+    uuid
+}
 
 pub fn say_hello() {
     log::trace!("enter say_hello()");
     println!("If you see nothing in the next line, set RUST_LOG to info or lower");
     log::info!("Hello from libnancy.rlib!!!");
+
+    let store_path = "nancy.db";
+    let conn = sqlite::open(store_path).unwrap();
+    let uuid = get_uuid(&conn).unwrap();
+    let this_store = Store {
+        conn: &conn,
+        uuid: &uuid,
+    };
+
+    println!("Store UUID: {}", this_store.uuid);
 }