From c0e01d98c434754c57d3c81b764627ede02069fd Mon Sep 17 00:00:00 2001
From: Huck Boles <huck@huck.website>
Date: Wed, 10 May 2023 17:35:46 -0500
Subject: [PATCH] basic command line interface setup

---
 Cargo.lock                          | 266 +++++++++++++++++++++++++++-
 Cargo.toml                          |   1 +
 src/filetype.rs                     |   2 -
 src/filetype/builder.rs             |  12 +-
 src/filetype/metafile.rs            |  22 ++-
 src/filetype/structs.rs             |  39 ----
 src/lib.rs                          |   2 +
 src/main.rs                         |   6 +-
 src/options.rs                      |  98 ++++++++++
 src/tests/test_metafile.rs          |   1 -
 test_site/build/expand_html.html    |  14 ++
 test_site/pattern/test/pattern.meta |   8 +-
 tests/metafile_builder.rs           |  24 +--
 13 files changed, 427 insertions(+), 68 deletions(-)
 create mode 100644 src/options.rs
 create mode 100644 test_site/build/expand_html.html

diff --git a/Cargo.lock b/Cargo.lock
index a428742..3370acb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -17,6 +17,55 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
+[[package]]
+name = "anstream"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ca84f3628370c59db74ee214b3263d58f9aadd9b4fe7e711fd87dc452b7f163"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is-terminal",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41ed9a86bf92ae6580e0a31281f65a1b1d867c0cc68d5346e2ae128dddfa6a7d"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e765fd216e48e067936442276d1d57399e37bce53c264d6fefbe298080cb57ee"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ca11d4be1bab0c8bc8734a9aa7bf4ee8316d462a08c6ac5052f888fef5b494b"
+dependencies = [
+ "windows-sys",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "180abfa45703aebe0093f79badacc01b8fd4ea2e35118747e5811127f926e188"
+dependencies = [
+ "anstyle",
+ "windows-sys",
+]
+
 [[package]]
 name = "backtrace"
 version = "0.3.67"
@@ -32,6 +81,12 @@ dependencies = [
  "rustc-demangle",
 ]
 
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
 [[package]]
 name = "block-buffer"
 version = "0.10.4"
@@ -53,6 +108,48 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "clap"
+version = "4.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34d21f9bf1b425d2968943631ec91202fe5e837264063503708b83013f8fc938"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+ "once_cell",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "914c8c79fb560f238ef6429439a30023c862f7a28e688c58f7203f12b29970bd"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "bitflags",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f9644cd56d6b87dbe899ef8b053e331c0637664e9e21a33dfcdc36093f5c5c4"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.15",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a2dd5a6fe8c6e3502f568a6353e5273bbb15193ad9a89e457b9970798efbea1"
+
 [[package]]
 name = "color-eyre"
 version = "0.5.11"
@@ -66,6 +163,12 @@ dependencies = [
  "owo-colors",
 ]
 
+[[package]]
+name = "colorchoice"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
+
 [[package]]
 name = "cpufeatures"
 version = "0.2.7"
@@ -117,6 +220,27 @@ version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
 
+[[package]]
+name = "errno"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4bcfec3a70f97c962c307b2d2c56e358cf1d00b558d74262b5f929ee8cc7e73a"
+dependencies = [
+ "errno-dragonfly",
+ "libc",
+ "windows-sys",
+]
+
+[[package]]
+name = "errno-dragonfly"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
+dependencies = [
+ "cc",
+ "libc",
+]
+
 [[package]]
 name = "eyre"
 version = "0.6.8"
@@ -143,12 +267,47 @@ version = "0.27.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ad0a93d233ebf96623465aad4046a8d3aa4da22d4f4beba5388838c8a434bbb4"
 
+[[package]]
+name = "heck"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
+
+[[package]]
+name = "hermit-abi"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
+
 [[package]]
 name = "indenter"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ce23b50ad8242c51a442f3ff322d56b02f08852c77e4c0b4d3fd684abc89c683"
 
+[[package]]
+name = "io-lifetimes"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c66c74d2ae7e79a5a8f7ac924adbe38ee42a859c6539ad869eb51f0b52dc220"
+dependencies = [
+ "hermit-abi",
+ "libc",
+ "windows-sys",
+]
+
+[[package]]
+name = "is-terminal"
+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "adcf93614601c8129ddf72e2d5633df827ba6551541c6d8c59520a371475be1f"
+dependencies = [
+ "hermit-abi",
+ "io-lifetimes",
+ "rustix",
+ "windows-sys",
+]
+
 [[package]]
 name = "itertools"
 version = "0.8.2"
@@ -160,9 +319,15 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.142"
+version = "0.2.144"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b00cc1c228a6782d0f076e7b232802e0c5689d41bb5df366f2a6b6621cfdfe1"
+
+[[package]]
+name = "linux-raw-sys"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a987beff54b60ffa6d51982e1aa1146bc42f19bd26be28b0586f252fccf5317"
+checksum = "ece97ea872ece730aed82664c424eb4c8291e1ff2480247ccf7409044bc6479f"
 
 [[package]]
 name = "memchr"
@@ -174,6 +339,7 @@ checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 name = "metaforge"
 version = "0.1.1"
 dependencies = [
+ "clap",
  "color-eyre",
  "pandoc",
  "pest",
@@ -297,9 +463,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.26"
+version = "1.0.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4424af4bf778aae2051a77b60283332f386554255d722233d09fbfc7e30da2fc"
+checksum = "8f4f29d145265ec1c483c7c654450edde0bfe043d3938d6972630663356d9500"
 dependencies = [
  "proc-macro2",
 ]
@@ -310,6 +476,20 @@ version = "0.1.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
 
+[[package]]
+name = "rustix"
+version = "0.37.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acf8729d8542766f1b2cf77eb034d52f40d375bb8b615d0b147089946e16613d"
+dependencies = [
+ "bitflags",
+ "errno",
+ "io-lifetimes",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys",
+]
+
 [[package]]
 name = "same-file"
 version = "1.0.6"
@@ -330,6 +510,12 @@ dependencies = [
  "digest",
 ]
 
+[[package]]
+name = "strsim"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+
 [[package]]
 name = "syn"
 version = "1.0.109"
@@ -390,6 +576,12 @@ version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
 
+[[package]]
+name = "utf8parse"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
+
 [[package]]
 name = "version_check"
 version = "0.9.4"
@@ -437,6 +629,72 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b1eb6f0cd7c80c79759c929114ef071b87354ce476d9d94271031c0497adfd5"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
+
 [[package]]
 name = "yansi"
 version = "0.5.1"
diff --git a/Cargo.toml b/Cargo.toml
index 881d1ee..471f100 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.1.1"
 edition = "2021"
 
 [dependencies]
+clap = { version = "4", features = ["derive"] }
 pandoc = "0.8"
 color-eyre =  { version = "0.5", default-features = false }
 walkdir = "2"
diff --git a/src/filetype.rs b/src/filetype.rs
index 6727256..06f0ef0 100644
--- a/src/filetype.rs
+++ b/src/filetype.rs
@@ -1,7 +1,5 @@
 mod builder;
 mod metafile;
-mod structs;
 
 pub use builder::*;
 pub use metafile::*;
-pub use structs::*;
diff --git a/src/filetype/builder.rs b/src/filetype/builder.rs
index 5dbdaa2..55a7405 100644
--- a/src/filetype/builder.rs
+++ b/src/filetype/builder.rs
@@ -1,4 +1,4 @@
-use crate::{parse_file, MetaFile, RootDirs, Source, Substitution};
+use crate::{parse_file, MetaFile, Options, Source, Substitution};
 use color_eyre::{eyre::bail, Result};
 use pandoc::{InputFormat, InputKind, OutputFormat, OutputKind, Pandoc, PandocOutput};
 use std::{
@@ -7,7 +7,7 @@ use std::{
     path::{Path, PathBuf},
 };
 
-pub fn build_metafile(path: &Path, dirs: &RootDirs) -> Result<()> {
+pub fn build_metafile(path: &Path, dirs: &Options) -> Result<()> {
     let file = fs::read_to_string(path)?;
     let file = parse_file(&file)?;
 
@@ -29,7 +29,7 @@ pub fn build_metafile(path: &Path, dirs: &RootDirs) -> Result<()> {
     Ok(())
 }
 
-pub fn metafile_to_string(file: &MetaFile, dirs: &RootDirs, name: Option<&str>) -> Result<String> {
+pub fn metafile_to_string(file: &MetaFile, dirs: &Options, name: Option<&str>) -> Result<String> {
     let mut output = String::default();
     let mut arrays = false;
 
@@ -68,7 +68,7 @@ pub fn metafile_to_string(file: &MetaFile, dirs: &RootDirs, name: Option<&str>)
     }
 }
 
-fn get_source_html(file: &MetaFile, dirs: &RootDirs) -> Result<String> {
+fn get_source_html(file: &MetaFile, dirs: &Options) -> Result<String> {
     let file = metafile_to_string(file, dirs, Some("SOURCE"))?;
     let mut pandoc = Pandoc::new();
 
@@ -85,7 +85,7 @@ fn get_source_html(file: &MetaFile, dirs: &RootDirs) -> Result<String> {
     }
 }
 
-fn get_pattern(key: &str, file: &MetaFile, dirs: &RootDirs) -> Result<String> {
+fn get_pattern(key: &str, file: &MetaFile, dirs: &Options) -> Result<String> {
     // SOURCE is already expanded in the initial build_metafile() call
     // we just need to return that
     if key == "SOURCE" {
@@ -131,7 +131,7 @@ fn get_pattern(key: &str, file: &MetaFile, dirs: &RootDirs) -> Result<String> {
     metafile_to_string(&pattern, dirs, Some(key))
 }
 
-fn find_dest(path: &Path, dirs: &RootDirs) -> Result<PathBuf> {
+fn find_dest(path: &Path, dirs: &Options) -> Result<PathBuf> {
     let source = dirs.source.to_string_lossy().to_string();
     let build = dirs.build.to_string_lossy().to_string();
 
diff --git a/src/filetype/metafile.rs b/src/filetype/metafile.rs
index adc24f6..409b2b9 100644
--- a/src/filetype/metafile.rs
+++ b/src/filetype/metafile.rs
@@ -1,4 +1,3 @@
-use crate::Source;
 use std::collections::HashMap;
 
 #[derive(Debug, Default, Clone)]
@@ -31,3 +30,24 @@ impl<'a> MetaFile<'a> {
         self.patterns.get(key).copied()
     }
 }
+
+#[macro_export]
+macro_rules! source (
+    (var($s:expr)) => { Source::Sub(Substitution::Variable($s))};
+    (arr($s:expr)) => { Source::Sub(Substitution::Array($s))};
+    (pat($s:expr)) => { Source::Sub(Substitution::Pattern($s))};
+    ($s:expr) => { Source::Str($s)};
+);
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum Source<'a> {
+    Str(&'a str),
+    Sub(Substitution<'a>),
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum Substitution<'a> {
+    Variable(&'a str),
+    Array(&'a str),
+    Pattern(&'a str),
+}
diff --git a/src/filetype/structs.rs b/src/filetype/structs.rs
index 60d293c..139597f 100644
--- a/src/filetype/structs.rs
+++ b/src/filetype/structs.rs
@@ -1,41 +1,2 @@
-use std::path::PathBuf;
 
-#[macro_export]
-macro_rules! source (
-    (var($s:expr)) => { Source::Sub(Substitution::Variable($s))};
-    (arr($s:expr)) => { Source::Sub(Substitution::Array($s))};
-    (pat($s:expr)) => { Source::Sub(Substitution::Pattern($s))};
-    ($s:expr) => { Source::Str($s)};
-);
 
-#[derive(Debug, Clone, PartialEq)]
-pub enum Source<'a> {
-    Str(&'a str),
-    Sub(Substitution<'a>),
-}
-
-#[derive(Debug, Clone, PartialEq)]
-pub enum Substitution<'a> {
-    Variable(&'a str),
-    Array(&'a str),
-    Pattern(&'a str),
-}
-
-#[derive(Debug, Clone, Default)]
-pub struct RootDirs {
-    pub root: PathBuf,
-    pub source: PathBuf,
-    pub build: PathBuf,
-    pub pattern: PathBuf,
-}
-
-impl RootDirs {
-    pub fn new() -> Self {
-        Self {
-            root: PathBuf::new(),
-            source: PathBuf::new(),
-            build: PathBuf::new(),
-            pattern: PathBuf::new(),
-        }
-    }
-}
diff --git a/src/lib.rs b/src/lib.rs
index aaa324c..a4fed10 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -3,9 +3,11 @@ extern crate pest;
 extern crate pest_derive;
 
 mod filetype;
+mod options;
 mod parser;
 
 pub use filetype::*;
+pub use options::*;
 pub use parser::*;
 
 #[cfg(test)]
diff --git a/src/main.rs b/src/main.rs
index bacc264..ce82dbe 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,8 +1,8 @@
-extern crate pest;
-extern crate pest_derive;
-
 use color_eyre::Result;
+use metaforge::parse_opts;
 
 fn main() -> Result<()> {
+    let opts = parse_opts()?;
+    println!("{:?}", opts);
     Ok(())
 }
diff --git a/src/options.rs b/src/options.rs
new file mode 100644
index 0000000..5c22db6
--- /dev/null
+++ b/src/options.rs
@@ -0,0 +1,98 @@
+use clap::Parser;
+use color_eyre::Result;
+use std::path::PathBuf;
+
+#[derive(Parser, Debug)]
+#[command(author = "Huck Boles")]
+#[command(version = "0.1.1")]
+#[command(about = "A customizable template driven static site generator")]
+#[command(long_about = None)]
+pub struct Opts {
+    /// Root directory [CURRENT_DIR]
+    #[arg(short, long, value_name = "ROOT_DIR")]
+    pub root: Option<String>,
+    /// Source file directory [CURRENT_DIR/source]
+    #[arg(short, long, value_name = "SOURCE_DIR")]
+    source: Option<String>,
+    /// Build directory [CURRENT_DIR/build]
+    #[arg(short, long, value_name = "BUILD_DIR")]
+    build: Option<String>,
+    /// Pattern directory [CURRENT_DIR/pattern]
+    #[arg(short, long, value_name = "PATTERN_DIR")]
+    pattern: Option<String>,
+    /// Extra output [false]
+    #[arg(short, long, default_value_t = false)]
+    verbose: bool,
+    /// Minimal output [false]
+    #[arg(short, long, default_value_t = false)]
+    quiet: bool,
+    /// Don't stop if a single file fails [false]
+    #[arg(long, default_value_t = false)]
+    force: bool,
+    /// Stop on undefined variables, patterns, and arrays [false]
+    #[arg(long, default_value_t = false)]
+    undefined: bool,
+}
+
+#[derive(Debug, Clone, Default)]
+pub struct Options {
+    pub root: PathBuf,
+    pub source: PathBuf,
+    pub build: PathBuf,
+    pub pattern: PathBuf,
+    pub verbose: bool,
+    pub quiet: bool,
+    pub force: bool,
+    pub undefined: bool,
+}
+
+impl Options {
+    pub fn new() -> Self {
+        Self {
+            root: PathBuf::new(),
+            source: PathBuf::new(),
+            build: PathBuf::new(),
+            pattern: PathBuf::new(),
+            verbose: false,
+            quiet: false,
+            force: false,
+            undefined: false,
+        }
+    }
+}
+
+pub fn parse_opts() -> Result<Options> {
+    let opts = Opts::parse();
+
+    let mut options = Options::new();
+    options.verbose = opts.verbose;
+    options.quiet = opts.quiet;
+    options.force = opts.force;
+    options.undefined = opts.undefined;
+
+    if let Some(root) = opts.root.as_deref() {
+        options.root = PathBuf::from(root).canonicalize()?;
+    } else {
+        options.root = std::env::current_dir()?;
+    }
+
+    if let Some(source) = opts.source.as_deref() {
+        options.source = PathBuf::from(source).canonicalize()?;
+    } else {
+        options.source = options.root.join("source");
+    }
+
+    if let Some(build) = opts.build.as_deref() {
+        options.build = PathBuf::from(build).canonicalize()?;
+    } else {
+        options.build = options.root.join("build");
+    }
+
+    if let Some(pattern) = opts.pattern.as_deref() {
+        options.pattern = PathBuf::from(pattern).canonicalize()?;
+    } else {
+        options.pattern = options.root.join("pattern");
+    }
+
+    Ok(options)
+}
diff --git a/src/tests/test_metafile.rs b/src/tests/test_metafile.rs
index 04cc4ea..8c1cbff 100644
--- a/src/tests/test_metafile.rs
+++ b/src/tests/test_metafile.rs
@@ -60,7 +60,6 @@ fn parse_meta_file() -> Result<()> {
     Ok(())
 }
 
-#[ignore = "Need to rewrite pattern test file"]
 #[test]
 fn parse_pattern_file() -> Result<()> {
     let mut pattern_src = parse_file(PATTERN)?.source.into_iter();
diff --git a/test_site/build/expand_html.html b/test_site/build/expand_html.html
new file mode 100644
index 0000000..0a9c518
--- /dev/null
+++ b/test_site/build/expand_html.html
@@ -0,0 +1,14 @@
+<body>
+<h2 id="this-is-a-test">This is a test</h2>
+<p>
+Inline html
+</p>
+variable: GOOD pattern:
+<p>
+GOOD
+</p>
+<p>
+GOOD GOOD
+</p>
+
+</body>
diff --git a/test_site/pattern/test/pattern.meta b/test_site/pattern/test/pattern.meta
index f49b816..0aaa7cc 100644
--- a/test_site/pattern/test/pattern.meta
+++ b/test_site/pattern/test/pattern.meta
@@ -1 +1,7 @@
-GOOD
+<h1>This is a test</h1>
+<p>${variable}</p>
+<ul>
+    @{array}
+</ul
+&{pattern}
+<footer>Other stuff</footer>
diff --git a/tests/metafile_builder.rs b/tests/metafile_builder.rs
index ff1350f..4498a69 100644
--- a/tests/metafile_builder.rs
+++ b/tests/metafile_builder.rs
@@ -7,10 +7,9 @@ static PRE_EXPAND: &str = include_str!("../test_site/source/expand.meta");
 static POST_EXPAND: &str = include_str!("files/expanded");
 
 #[test]
-#[ignore = "don't want to interfere with builder right now"]
 fn test_metafile_to_str() -> Result<()> {
     let metafile = parse_file(PRE_EXPAND)?;
-    let dirs = build_rootdir()?;
+    let dirs = build_options()?;
 
     let file = metafile_to_string(&metafile, &dirs, None)?;
 
@@ -22,10 +21,10 @@ fn test_metafile_to_str() -> Result<()> {
 
 #[test]
 fn test_metafile_builder() -> Result<()> {
-    let dirs = build_rootdir()?;
+    let dirs = build_options()?;
     let path = PathBuf::from("test_site/source/expand_html.meta");
     build_metafile(&path, &dirs)?;
-    let source = fs::read_to_string("test_site/site/expand_html.html")?;
+    let source = fs::read_to_string("test_site/build/expand_html.html")?;
     let html = fs::read_to_string("tests/files/expanded_html")?;
 
     assert_eq!(source, html);
@@ -33,20 +32,23 @@ fn test_metafile_builder() -> Result<()> {
     Ok(())
 }
 
-fn build_rootdir() -> Result<RootDirs> {
+fn build_options() -> Result<Options> {
     let dir = PathBuf::from("./test_site").canonicalize()?;
 
-    let dirs = RootDirs {
+    let opts = Options {
         root: dir.clone(),
         source: dir.join("source"),
-        build: dir.join("site"),
+        build: dir.join("build"),
         pattern: dir.join("pattern"),
+        verbose: false,
+        quiet: false,
+        force: false,
+        undefined: false,
     };
 
-    if dirs.build.exists() {
-        fs::remove_dir_all(&dirs.build)?;
+    if !opts.build.exists() {
+        fs::create_dir(&opts.build)?;
     }
-    fs::create_dir(&dirs.build)?;
 
-    Ok(dirs)
+    Ok(opts)
 }
-- 
2.44.2