First Stable Release

.gitignore

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+target
+index.node
+**/node_modules
+**/.DS_Store
+Cargo.lock
+npm-debug.log*

Cargo.toml

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+[package]
+name = "db-csv-faker"
+version = "0.1.0"
+description = "tiny native extendable npm package for mocking db .csvs"
+authors = ["zkud"]
+license = "MIT"
+edition = "2018"
+exclude = ["index.node"]
+
+[dependencies]
+uuid = { version = "0.8", features = ["v4"] }
+rand = "0.8.4"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies.neon]
+version = "0.8"

README.md

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+# db-csv-faker
+
+**db-csv-faker:** tiny native extendable npm package for mocking db .csvs
+
+This project was bootstrapped by [create-neon](https://www.npmjs.com/package/create-neon).
+
+## Installing db-csv-faker
+
+Installing db-csv-faker requires a [supported version of Node and Rust](https://github.com/neon-bindings/neon#platform-support).
+
+You can install the project with npm. In the project directory, run:
+
+```sh
+$ npm install
+```
+
+This fully installs the project, including installing any dependencies and running the build.
+
+## Building db-csv-faker
+
+If you have already installed the project and only want to run the build, run:
+
+```sh
+$ npm run build
+```
+
+This command uses the [cargo-cp-artifact](https://github.com/neon-bindings/cargo-cp-artifact) utility to run the Rust build and copy the built library into `./index.node`.
+
+## Exploring db-csv-faker
+
+After building db-csv-faker, you can explore its exports at the Node REPL:
+
+```sh
+$ npm install
+$ node
+> require('.').hello()
+"hello node"
+```
+
+## Available Scripts
+
+In the project directory, you can run:
+
+### `npm install`
+
+Installs the project, including running `npm run build`.
+
+### `npm build`
+
+Builds the Node addon (`index.node`) from source.
+
+### `npm test`
+
+Runs the unit tests by calling `cargo test`. You can learn more about [adding tests to your Rust code](https://doc.rust-lang.org/book/ch11-01-writing-tests.html) from the [Rust book](https://doc.rust-lang.org/book/).
+
+## Project Layout
+
+The directory structure of this project is:
+
+```
+db-csv-faker/
+├── Cargo.toml
+├── README.md
+├── index.node
+├── package.json
+├── src/
+|   └── lib.rs
+└── target/
+```
+
+### Cargo.toml
+
+The Cargo [manifest file](https://doc.rust-lang.org/cargo/reference/manifest.html), which informs the `cargo` command.
+
+### README.md
+
+This file.
+
+### index.node
+
+The Node addon—i.e., a binary Node module—generated by building the project. This is the main module for this package, as dictated by the `"main"` key in `package.json`.
+
+Under the hood, a [Node addon](https://nodejs.org/api/addons.html) is a [dynamically-linked shared object](https://en.wikipedia.org/wiki/Library_(computing)#Shared_libraries). The `"build"` script produces this file by copying it from within the `target/` directory, which is where the Rust build produces the shared object.
+
+### package.json
+
+The npm [manifest file](https://docs.npmjs.com/cli/v7/configuring-npm/package-json), which informs the `npm` command.
+
+### src/
+
+The directory tree containing the Rust source code for the project.
+
+### src/lib.rs
+
+The Rust library's main module.
+
+### target/
+
+Binary artifacts generated by the Rust build.
+
+## Learn More
+
+To learn more about Neon, see the [Neon documentation](https://neon-bindings.com).
+
+To learn more about Rust, see the [Rust documentation](https://www.rust-lang.org).
+
+To learn more about Node, see the [Node documentation](https://nodejs.org).

package.json

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+{
+  "name": "db-csv-faker",
+  "version": "0.1.0",
+  "description": "tiny native extendable npm package for mocking db .csvs",
+  "main": "index.node",
+  "scripts": {
+    "build": "cargo-cp-artifact -nc index.node -- cargo build --message-format=json-render-diagnostics",
+    "install": "npm run build",
+    "test": "cargo test"
+  },
+  "author": "zkud",
+  "license": "MIT",
+  "devDependencies": {
+    "cargo-cp-artifact": "^0.1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/rapid-d9t/db-csv-faker.git"
+  },
+  "keywords": [
+    "csv"
+  ],
+  "bugs": {
+    "url": "https://github.com/rapid-d9t/db-csv-faker/issues"
+  },
+  "homepage": "https://github.com/rapid-d9t/db-csv-faker#readme"
+}

src/dumpers/mod.rs

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+

src/fields/field_error.rs

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+use std::fmt;
+use std::io;
+
+#[derive(fmt::Debug)]
+pub struct FieldError {
+    error_type: FieldErrorType,
+    message: String,
+}
+
+#[derive(fmt::Debug, Clone, PartialEq)]
+pub enum FieldErrorType {
+    InvalidInputArgs,
+}
+
+impl fmt::Display for FieldErrorType {
+    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            FieldErrorType::InvalidInputArgs => write!(formatter, "InvalidInputArgs"),
+        }
+    }
+}
+
+impl FieldError {
+    pub fn new(message: String, error_type: FieldErrorType) -> FieldError {
+        FieldError {
+            message,
+            error_type,
+        }
+    }
+
+    pub fn get_message(&self) -> String {
+        self.message.clone()
+    }
+
+    pub fn get_error_type(&self) -> FieldErrorType {
+        self.error_type.clone()
+    }
+}
+
+impl fmt::Display for FieldError {
+    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(
+            formatter,
+            "Field Error with type: {}, reason: {}",
+            self.error_type, self.message
+        )
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::FieldError;
+    use super::FieldErrorType;
+
+    #[test]
+    fn it_inits() {
+        let invalid_args_error =
+            FieldError::new("field error".to_string(), FieldErrorType::InvalidInputArgs);
+
+        assert_eq!(invalid_args_error.get_message(), "field error");
+        assert_eq!(
+            invalid_args_error.get_error_type(),
+            FieldErrorType::InvalidInputArgs
+        );
+    }
+
+    #[test]
+    fn it_displayable() {
+        let invalid_args_error =
+            FieldError::new("field error".to_string(), FieldErrorType::InvalidInputArgs);
+
+        assert_eq!(
+            format!("{}", invalid_args_error),
+            "Field Error reason: InvalidInputArgs, reason: file error"
+        );
+    }
+}

src/fields/integer_32_field.rs

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+use neon::declare_types;
+use neon::prelude::*;
+use rand;
+use rand::Rng;
+
+pub struct Integer32Field {
+    foreign_key_to: Option<String>,
+}
+
+declare_types! {
+    pub class JsInteger32Field for Integer32Field {
+        init(mut cx) {
+            let properties = cx.argument::<JsObject>(0)?;
+
+            if let Ok(name) = properties.get(&mut cx, "foreignKeyTo") {
+                if let Ok(name) = name.downcast::<JsString>() {
+                    return Ok(
+                        Integer32Field {
+                            foreign_key_to: Some(name.value())
+                        }
+                    );
+                }
+            }
+
+            Ok(Integer32Field {
+                foreign_key_to: None
+            })
+        }
+
+        method format(mut cx) {
+            let value = {
+                let this = cx.this();
+                let guard = cx.lock();
+                let fields = this.borrow(&guard);
+                let mut generator = rand::thread_rng();
+                let value: i32 = generator.gen();
+                format!("{}", value)
+            };
+            Ok(cx.string(value).upcast())
+        }
+
+        method isForeignKeyTo(mut cx) {
+            let foreign_key_to = {
+                let this = cx.this();
+                let guard = cx.lock();
+                let fields = this.borrow(&guard);
+                fields.foreign_key_to.clone()
+            };
+            match foreign_key_to {
+                Some(name) => Ok(cx.string(name).upcast()),
+                None => Ok(cx.undefined().upcast())
+            }
+        }
+    }
+}

src/fields/mod.rs

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+mod field_error;
+pub mod integer_32_field;
+pub mod string_field;
+pub mod uuid_v4_field;

src/fields/string_field.rs

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+use neon::declare_types;
+use neon::prelude::*;
+use rand;
+use rand::distributions::Alphanumeric;
+use rand::Rng;
+
+pub struct StringField {
+    foreign_key_to: Option<String>,
+}
+
+declare_types! {
+    pub class JsStringField for StringField {
+        init(mut cx) {
+            let properties = cx.argument::<JsObject>(0)?;
+
+            if let Ok(name) = properties.get(&mut cx, "foreignKeyTo") {
+                if let Ok(name) = name.downcast::<JsString>() {
+                    return Ok(
+                        StringField {
+                            foreign_key_to: Some(name.value())
+                        }
+                    );
+                }
+            }
+
+            Ok(StringField {
+                foreign_key_to: None
+            })
+        }
+
+        method format(mut cx) {
+            let value: String = {
+                let this = cx.this();
+                let guard = cx.lock();
+                let fields = this.borrow(&guard);
+                rand::thread_rng()
+                    .sample_iter(&Alphanumeric)
+                    .take(30)
+                    .map(char::from)
+                    .collect()
+            };
+            Ok(cx.string(value).upcast())
+        }
+
+        method isForeignKeyTo(mut cx) {
+            let foreign_key_to = {
+                let this = cx.this();
+                let guard = cx.lock();
+                let fields = this.borrow(&guard);
+                fields.foreign_key_to.clone()
+            };
+            match foreign_key_to {
+                Some(name) => Ok(cx.string(name).upcast()),
+                None => Ok(cx.undefined().upcast())
+            }
+        }
+    }
+}