feat: add man pages and shell completions

Cargo.toml

@@ -16,6 +16,11 @@ clap = { version = "4.5.4", features = ["derive"] }
 unicode-normalization = "0.1.23"
 include-lines = "1.1.2"
 
+[build-dependencies]
+clap = { version = "4.5.4", features = ["derive"] }
+clap_complete = "4.5.2"
+clap_mangen = "0.2.20"
+
 [dev-dependencies]
 criterion = "0.5.1"
 

benches/generate_passphrase.rs

@@ -1,4 +1,5 @@
 use criterion::{criterion_group, criterion_main, Criterion};
+use phraze::cli::ListChoice;
 use phraze::*;
 
 fn criterion_benchmark(c: &mut Criterion) {

build.rs

@@ -0,0 +1,40 @@
+#[path = "src/cli.rs"]
+mod cli;
+
+use clap::Command;
+use clap::CommandFactory;
+use clap_complete::generate_to;
+use clap_complete::Shell::{Bash, Fish, Zsh};
+use clap_mangen::Man;
+use cli::Args;
+use std::fs;
+use std::path::PathBuf;
+
+static NAME: &str = "phraze";
+
+fn generate_man_pages(cmd: Command) {
+    let man_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("target/man");
+    let mut buffer = Vec::default();
+
+    Man::new(cmd.clone()).render(&mut buffer).unwrap();
+    fs::create_dir_all(&man_dir).unwrap();
+    fs::write(man_dir.join(NAME.to_owned() + ".1"), buffer).unwrap();
+}
+
+fn generate_shell_completions(mut cmd: Command) {
+    let comp_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("target/completions");
+
+    fs::create_dir_all(&comp_dir).unwrap();
+
+    for shell in [Bash, Fish, Zsh] {
+        generate_to(shell, &mut cmd, NAME, &comp_dir).unwrap();
+    }
+}
+
+fn main() {
+    let mut cmd = Args::command();
+    cmd.set_bin_name(NAME);
+
+    generate_man_pages(cmd.clone());
+    generate_shell_completions(cmd);
+}

src/cli.rs

@@ -0,0 +1,115 @@
+use clap::Parser;
+use std::path::PathBuf;
+
+/// This enum, `ListChoice`, represents all of the "built-in" word lists that Phraze can use.
+#[derive(Clone, Debug, Copy)]
+pub enum ListChoice {
+    Long,
+    Medium,
+    Eff,
+    Mnemonicode,
+    Effshort,
+    Qwerty,
+    Alpha,
+}
+
+/// Generate random passphrases
+#[derive(Parser, Debug)]
+#[clap(version, name = "phraze")]
+pub struct Args {
+    /// Strengthen your passphrase the easy way: Each -S flag increases minimum entropy by 20 bits (above the default of
+    /// 80 bits).
+    #[clap(short = 'S', long = "strength", conflicts_with = "number_of_words", conflicts_with = "minimum_entropy", action = clap::ArgAction::Count)]
+    pub strength_count: u8,
+
+    /// Set minimum amount of entropy in bits for generated passphrase. If neither minimum_entropy or
+    /// number_of_words is specified, Phraze will default to an 80-bit minimum.
+    #[clap(
+        short = 'e',
+        long = "minimum-entropy",
+        conflicts_with = "number_of_words",
+        conflicts_with = "strength_count"
+    )]
+    pub minimum_entropy: Option<usize>,
+
+    /// Set exactly how many words to use in generated passphrase. If neither number_of_words or
+    /// minimum_entropy is specified, Phraze will default to an 80-bit minimum.
+    #[clap(
+        short = 'w',
+        long = "words",
+        conflicts_with = "minimum_entropy",
+        conflicts_with = "strength_count"
+    )]
+    pub number_of_words: Option<usize>,
+
+    /// Number of passphrases to generate
+    #[clap(short = 'n', long = "passphrases", default_value = "1")]
+    pub n_passphrases: usize,
+
+    /// Word separator. Can accept single quotes around the separator. To not use a separator,
+    /// use empty single quotes: ''.
+    ///
+    /// There are special values that will trigger generated separators:
+    ///
+    /// _n: separators will be random numbers
+    ///
+    /// _s: separators will be random symbols
+    ///
+    /// _b: separators will be a mix of random numbers and symbols
+    #[clap(short = 's', long = "sep", default_value = "-")]
+    pub separator: String,
+
+    /// Choose a word list to use.
+    ///
+    /// Options:
+    ///
+    /// m: Orchard Street Medium List (8,192 words) [DEFAULT]
+    ///
+    /// l: Orchard Street Long List (17,576 words)
+    ///
+    /// e: EFF long list (7,776 words)
+    ///
+    /// n: Mnemonicode list (1,633 words). Good if you know you're going to be speaking
+    /// passphrases out loud.
+    ///
+    /// s: EFF short list (1,296 words)
+    ///
+    /// q: Orchard Street QWERTY list (1,296 words). Optimized to minimize travel
+    /// distance on QWERTY keyboard layout.
+    ///
+    /// a: Orchard Street Alpha list (1,296 words). Optimized to minimize travel
+    /// distance on alphabetical keyboard layout.
+    #[clap(short = 'l', long = "list", value_parser=parse_list_choice, default_value="m")]
+    pub list_choice: ListChoice,
+
+    /// Provide a text file with a list of words to randomly generate passphrase
+    /// from. Should be a text file with one word per line.
+    #[clap(short = 'c', long = "custom-list", conflicts_with = "list_choice")]
+    pub custom_list_file_path: Option<PathBuf>,
+
+    /// Use Title Case for words in generated passphrase
+    #[clap(short = 't', long = "title-case")]
+    pub title_case: bool,
+
+    /// Print estimated entropy of generated passphrase, in bits, along with
+    /// the passphrase itself
+    #[clap(short = 'v', long = "verbose")]
+    pub verbose: bool,
+}
+
+/// Convert list_choice string slice into a ListChoice enum. Clap calls this function.
+fn parse_list_choice(list_choice: &str) -> Result<ListChoice, String> {
+    match list_choice.to_lowercase().as_ref() {
+        "l" => Ok(ListChoice::Long),
+        "m" => Ok(ListChoice::Medium),
+        "e" => Ok(ListChoice::Eff),
+        "n" => Ok(ListChoice::Mnemonicode),
+        "s" => Ok(ListChoice::Effshort),
+        "q" => Ok(ListChoice::Qwerty),
+        "a" => Ok(ListChoice::Alpha),
+        _ => Err(format!(
+            "Inputted list choice '{}' doesn't correspond to an available word list",
+            list_choice
+        )),
+    }
+}

src/lib.rs

@@ -1,23 +1,13 @@
+pub mod cli;
 pub mod file_reader;
 pub mod separators;
 pub mod unicode_normalization_check;
 
+use crate::cli::ListChoice;
 use crate::separators::make_separator;
 use include_lines::include_lines;
 use rand::{seq::SliceRandom, thread_rng, Rng};
 
-/// This enum, `ListChoice`, represents all of the "built-in" word lists that Phraze can use.
-#[derive(Clone, Debug, Copy)]
-pub enum ListChoice {
-    Long,
-    Medium,
-    Eff,
-    Mnemonicode,
-    Effshort,
-    Qwerty,
-    Alpha,
-}
-
 /// Given user's inputs, figure out how many words the generated passphrase will need. If user
 /// specified an exact `number_of_words`, just return that `number_of_words`. If user is using a
 /// strength_count, do the necessary math. If user specified a `minimum_entropy`, we need to do

src/main.rs

@@ -1,91 +1,7 @@
+use crate::cli::Args;
 use crate::file_reader::read_in_custom_list;
 use clap::Parser;
 use phraze::*;
-use std::path::PathBuf;
-
-/// Generate random passphrases
-#[derive(Parser, Debug)]
-#[clap(version, name = "phraze")]
-struct Args {
-    /// Strengthen your passphrase the easy way: Each -S flag increases minimum entropy by 20 bits (above the default of
-    /// 80 bits).
-    #[clap(short = 'S', long = "strength", conflicts_with = "number_of_words", conflicts_with = "minimum_entropy", action = clap::ArgAction::Count)]
-    strength_count: u8,
-
-    /// Set minimum amount of entropy in bits for generated passphrase. If neither minimum_entropy or
-    /// number_of_words is specified, Phraze will default to an 80-bit minimum.
-    #[clap(
-        short = 'e',
-        long = "minimum-entropy",
-        conflicts_with = "number_of_words",
-        conflicts_with = "strength_count"
-    )]
-    minimum_entropy: Option<usize>,
-
-    /// Set exactly how many words to use in generated passphrase. If neither number_of_words or
-    /// minimum_entropy is specified, Phraze will default to an 80-bit minimum.
-    #[clap(
-        short = 'w',
-        long = "words",
-        conflicts_with = "minimum_entropy",
-        conflicts_with = "strength_count"
-    )]
-    number_of_words: Option<usize>,
-
-    /// Number of passphrases to generate
-    #[clap(short = 'n', long = "passphrases", default_value = "1")]
-    n_passphrases: usize,
-
-    /// Word separator. Can accept single quotes around the separator. To not use a separator,
-    /// use empty single quotes: ''.
-    ///
-    /// There are special values that will trigger generated separators:
-    ///
-    /// _n: separators will be random numbers
-    ///
-    /// _s: separators will be random symbols
-    ///
-    /// _b: separators will be a mix of random numbers and symbols
-    #[clap(short = 's', long = "sep", default_value = "-")]
-    separator: String,
-
-    /// Choose a word list to use.
-    ///
-    /// Options:
-    ///
-    /// m: Orchard Street Medium List (8,192 words) [DEFAULT]
-    ///
-    /// l: Orchard Street Long List (17,576 words)
-    ///
-    /// e: EFF long list (7,776 words)
-    ///
-    /// n: Mnemonicode list (1,633 words). Good if you know you're going to be speaking
-    /// passphrases out loud.
-    ///
-    /// s: EFF short list (1,296 words)
-    ///
-    /// q: Orchard Street QWERTY list (1,296 words). Optimized to minimize travel
-    /// distance on QWERTY keyboard layout.
-    ///
-    /// a: Orchard Street Alpha list (1,296 words). Optimized to minimize travel
-    /// distance on alphabetical keyboard layout.
-    #[clap(short = 'l', long = "list", value_parser=parse_list_choice, default_value="m")]
-    list_choice: ListChoice,
-
-    /// Provide a text file with a list of words to randomly generate passphrase
-    /// from. Should be a text file with one word per line.
-    #[clap(short = 'c', long = "custom-list", conflicts_with = "list_choice")]
-    custom_list_file_path: Option<PathBuf>,
-
-    /// Use Title Case for words in generated passphrase
-    #[clap(short = 't', long = "title-case")]
-    title_case: bool,
-
-    /// Print estimated entropy of generated passphrase, in bits, along with
-    /// the passphrase itself
-    #[clap(short = 'v', long = "verbose")]
-    verbose: bool,
-}
 
 fn main() -> Result<(), String> {
     let opt = Args::parse();
@@ -139,20 +55,3 @@ fn generate_passphrases<T: AsRef<str> + std::fmt::Display>(opt: &Args, word_list
         println!("{}", passphrase);
     }
 }
-
-/// Convert list_choice string slice into a ListChoice enum. Clap calls this function.
-fn parse_list_choice(list_choice: &str) -> Result<ListChoice, String> {
-    match list_choice.to_lowercase().as_ref() {
-        "l" => Ok(ListChoice::Long),
-        "m" => Ok(ListChoice::Medium),
-        "e" => Ok(ListChoice::Eff),
-        "n" => Ok(ListChoice::Mnemonicode),
-        "s" => Ok(ListChoice::Effshort),
-        "q" => Ok(ListChoice::Qwerty),
-        "a" => Ok(ListChoice::Alpha),
-        _ => Err(format!(
-            "Inputted list choice '{}' doesn't correspond to an available word list",
-            list_choice
-        )),
-    }
-}

tests/list_reading_tests.rs

@@ -1,4 +1,5 @@
 mod minimum_entropy_tests {
+    use phraze::cli::ListChoice;
     use phraze::*;
 
     #[test]