ultra fancy cli for diesel-demo

Cargo.lock

@@ -358,6 +358,19 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "comfy-table"
+version = "7.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b34115915337defe99b2aff5c2ce6771e5fbc4079f4b506301f5cf394c8452f7"
+dependencies = [
+ "console",
+ "crossterm",
+ "strum",
+ "strum_macros",
+ "unicode-width",
+]
+
 [[package]]
 name = "console"
 version = "0.15.8"
@@ -463,6 +476,28 @@ version = "0.8.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "22ec99545bb0ed0ea7bb9b8e1e9122ea386ff8a48c0922e43f36d45ab09e0e80"
 
+[[package]]
+name = "crossterm"
+version = "0.27.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f476fe445d41c9e991fd07515a6f463074b782242ccf4a5b7b1d1012e70824df"
+dependencies = [
+ "bitflags 2.6.0",
+ "crossterm_winapi",
+ "libc",
+ "parking_lot",
+ "winapi",
+]
+
+[[package]]
+name = "crossterm_winapi"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acdd7c62a3665c7f6830a51635d9ac9b23ed385797f70a83bb8bafe9c572ab2b"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "crunchy"
 version = "0.2.2"
@@ -610,6 +645,19 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "dialoguer"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "658bce805d770f407bc62102fca7c2c64ceef2fbcb2b8bd19d2765ce093980de"
+dependencies = [
+ "console",
+ "shell-words",
+ "tempfile",
+ "thiserror",
+ "zeroize",
+]
+
 [[package]]
 name = "diesel"
 version = "2.2.1"
@@ -629,8 +677,12 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "colored",
+ "comfy-table",
+ "console",
+ "dialoguer",
  "diesel",
  "dotenvy",
+ "indicatif",
  "libpt",
  "serde",
  "serde_json",
@@ -759,6 +811,12 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7360491ce676a36bf9bb3c56c1aa791658183a54d2744120f27285738d90465a"
 
+[[package]]
+name = "fastrand"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9fc0510504f03c51ada170672ac806f1f105a88aa97a5281117e1ddc3368e51a"
+
 [[package]]
 name = "fluent"
 version = "0.16.1"
@@ -2035,6 +2093,12 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "rustversion"
+version = "1.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "955d28af4278de8121b7ebeb796b6a45735dc01436d898801014aced2773a3d6"
+
 [[package]]
 name = "ryu"
 version = "1.0.18"
@@ -2185,6 +2249,12 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "shell-words"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24188a676b6ae68c3b2cb3a01be17fbf7240ce009799bb56d5b1409051e78fde"
+
 [[package]]
 name = "shortc"
 version = "0.1.0"
@@ -2275,6 +2345,25 @@ version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
+[[package]]
+name = "strum"
+version = "0.26.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8fec0f0aef304996cf250b31b5a10dee7980c85da9d759361292b8bca5a18f06"
+
+[[package]]
+name = "strum_macros"
+version = "0.26.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c6bee85a5a24955dc440386795aa378cd9cf82acd5f764469152d2270e581be"
+dependencies = [
+ "heck 0.5.0",
+ "proc-macro2",
+ "quote",
+ "rustversion",
+ "syn",
+]
+
 [[package]]
 name = "subtle"
 version = "2.6.1"
@@ -2325,6 +2414,18 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "tempfile"
+version = "3.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85b77fafb263dd9d05cbeac119526425676db3784113aa9295c88498cbf8bff1"
+dependencies = [
+ "cfg-if",
+ "fastrand",
+ "rustix",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "terminal_size"
 version = "0.3.0"
@@ -3078,3 +3179,9 @@ dependencies = [
  "quote",
  "syn",
 ]
+
+[[package]]
+name = "zeroize"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ced3678a2879b30306d323f4542626697a464a97c0a07c9aebf7ebca65cd4dde"

members/diesel-demo/Cargo.toml

@@ -6,8 +6,12 @@ edition = "2021"
 [dependencies]
 anyhow.workspace = true
 colored = "2.1.0"
+comfy-table = { version = "7.1.1", features = ["console"] }
+console = "0.15.8"
+dialoguer = { version = "0.11.0", features = ["completion", "history"] }
 diesel = { version = "2.2.1", features = ["serde_json", "sqlite", "uuid", "returning_clauses_for_sqlite_3_35"] }
 dotenvy = "0.15.7"
+indicatif = "0.17.8"
 libpt.workspace = true
 serde = { workspace = true, features = ["serde_derive"] }
 serde_json.workspace = true

members/diesel-demo/src/cli.rs

@@ -0,0 +1,128 @@
+use std::fmt::Display;
+
+use comfy_table::presets::UTF8_FULL_CONDENSED;
+use comfy_table::Table;
+use console::{style, Color};
+use dialoguer::{theme::ColorfulTheme, Completion, Input};
+use dialoguer::{BasicHistory, History};
+use libpt::log::{info, warn};
+
+use crate::models::{self, Post};
+
+const HELP_TEXT: &str = "\
+                help|?              -     show this menu\n\
+                exit                -     exit the application\n\
+                list|ls             -     list all posts\n\
+                publish [id]        -     publish the post with the id [id]\n\
+                unpublish [id]      -     make the post with the id [id] a draft\n\
+                delete [id]         -     delete the post with the id [id]\n\
+                read|show [id]      -     display the post with the id [id]\n\
+                new                 -     create a new post";
+const USAGE_TEXT: &str = "Bad input: try 'help'";
+
+pub struct MyCompletion {
+    options: Vec<String>,
+}
+impl Default for MyCompletion {
+    fn default() -> Self {
+        MyCompletion {
+            options: vec![
+                "help".to_string(),
+                "?".to_string(),
+                "list".to_string(),
+                "publish".to_string(),
+                "unpublish".to_string(),
+                "delete".to_string(),
+                "read".to_string(),
+                "show".to_string(),
+                "new".to_string(),
+                "ls".to_string(),
+            ],
+        }
+    }
+}
+
+impl Completion for MyCompletion {
+    /// Simple completion implementation based on substring
+    fn get(&self, input: &str) -> Option<String> {
+        let matches = self
+            .options
+            .iter()
+            .filter(|option| option.starts_with(input))
+            .collect::<Vec<_>>();
+
+        if matches.len() == 1 {
+            Some(matches[0].to_string())
+        } else {
+            None
+        }
+    }
+}
+pub fn table_posts(posts_to_print: &Vec<models::Post>) {
+    let mut table = Table::new();
+    table
+        .load_preset(UTF8_FULL_CONDENSED)
+        .set_content_arrangement(comfy_table::ContentArrangement::DynamicFullWidth)
+        .set_header(vec!["id", "title", "published?", "body"]);
+    for post in posts_to_print {
+        let mut stitle = post.title.clone();
+        stitle.truncate(40);
+        let mut sbody = post.body.clone();
+        sbody.truncate(40);
+
+        table.add_row(vec![
+            post.id.to_string(),
+            stitle,
+            post.published.to_string(),
+            sbody,
+        ]);
+    }
+    println!("{}", style(table).dim());
+}
+
+impl Display for Post {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let mut table = Table::new();
+        table
+            .load_preset(UTF8_FULL_CONDENSED)
+            .set_content_arrangement(comfy_table::ContentArrangement::DynamicFullWidth)
+            .set_header(vec![format!("{:<6} {}", self.id, self.title)])
+            .add_row(vec![self.body.clone()]);
+        writeln!(f, "{table}")
+    }
+}
+
+pub fn read_buf_interactive(
+    buf: &mut String,
+    completion: &impl Completion,
+    history: &mut BasicHistory,
+) -> anyhow::Result<()> {
+    buf.clear();
+
+    *buf = Input::with_theme(&ColorfulTheme::default())
+        .completion_with(completion)
+        .history_with(history)
+        .interact_text()?;
+
+    Ok(())
+}
+
+pub fn usage() {
+    borderprint(USAGE_TEXT, Some(Color::Red));
+}
+
+pub fn help() {
+    borderprint(HELP_TEXT, Some(Color::Cyan));
+}
+
+pub(crate) fn borderprint(content: impl ToString, color: Option<Color>) {
+    let mut table = Table::new();
+    table
+        .load_preset(UTF8_FULL_CONDENSED)
+        .set_content_arrangement(comfy_table::ContentArrangement::DynamicFullWidth)
+        .add_row(vec![content.to_string()]);
+    match color {
+        Some(c) => println!("{}", style(table).fg(c)),
+        None => println!("{table}")
+    }
+}

members/diesel-demo/src/lib.rs

@@ -1,5 +1,6 @@
 pub mod models;
 pub mod schema;
+pub mod cli;
 
 use self::schema::posts::dsl::*;
 
@@ -7,6 +8,7 @@ use std::io::Write;
 use std::{env, io};
 
 use colored::Colorize;
+use dialoguer::Input;
 use diesel::prelude::*;
 use diesel::sqlite::SqliteConnection;
 
@@ -34,45 +36,3 @@ pub fn load_relevant_posts(conn: &mut SqliteConnection) -> anyhow::Result<Vec<mo
         .load(conn)?)
 }
 
-// NOTE: formatting breaks when you use japanese fullwidth (or probably other longer chars too)
-// characters. Works well for the regular alphabet
-pub fn print_posts(posts_to_print: &Vec<models::Post>) {
-    if !posts_to_print.is_empty() {
-        println!(
-            "{: <12}| {: <30} | {: <40}[...] | {: <12} | {: <5}",
-            "id", "title", "body (truncated)", "body len", "is published?"
-        );
-        println!("{:=^140}", "");
-        for post in posts_to_print {
-            let mut short_title = post.body.clone();
-            short_title.truncate(30);
-            let mut short_body = post.body.clone();
-            short_body.truncate(40);
-            println!(
-                "{: <12}| {: <30} | {: <40}[...] | {: <12} | {: <5}",
-                post.id,
-                short_title,
-                short_body,
-                post.body.len(),
-                post.published
-            );
-        }
-        info!("total: {}", posts_to_print.len());
-    } else {
-        warn!("Tried to display posts, but there are no posts stored in the database");
-    }
-}
-
-// NOTE: this can't handle unicode stuff like 春 and I don't really care
-pub fn read_buf_interactive(buf: &mut String) -> anyhow::Result<()> {
-    buf.clear();
-    let stdin = io::stdin();
-    let mut stdout = io::stdout();
-
-    print!("{}", "> ".green().bold());
-    stdout.flush()?;
-    stdin.read_line(buf)?;
-    *buf = buf.trim().to_string();
-
-    Ok(())
-}

members/diesel-demo/src/main.rs

@@ -1,19 +1,9 @@
+use dialoguer::BasicHistory;
 use diesel::SqliteConnection;
 use diesel_demo::models::{Post, PostDraft};
 use libpt::log::{self, debug, error, trace, warn};
 
-const HELP_TEXT: &str = "\
+use lib::cli::*;
-                help|?              -     show this menu\n\
-                exit                -     exit the application\n\
-                list                -     list all posts\n\
-                publish [id]        -     publish the post with the id [id]\n\
-                unpublish [id]      -     make the post with the id [id] a draft\n\
-                delete [id]         -     delete the post with the id [id]\n\
-                read|show [id]      -     display the post with the id [id]\n\
-                new                 -     create a new post";
-const USAGE_TEXT: &str = "Bad input: try 'help'";
-
-use colored::*;
 
 use diesel_demo as lib;
 
@@ -37,12 +27,14 @@ fn main() -> anyhow::Result<()> {
 
 fn repl(conn: &mut SqliteConnection) -> anyhow::Result<()> {
     let mut buf = String::new();
+    let completion = MyCompletion::default();
+    let mut history = BasicHistory::new();
 
     loop {
-        lib::read_buf_interactive(&mut buf)?;
+        read_buf_interactive(&mut buf, &completion, &mut history)?;
         buf = buf.to_uppercase();
         if buf.starts_with("HELP") || buf.starts_with('?') {
-            println!("{}", HELP_TEXT.bright_blue())
+            help()
         } else if buf.starts_with("EXIT") || buf.is_empty() {
             break;
         } else if buf.starts_with("UNPUBLISH") {
@@ -101,10 +93,10 @@ fn repl(conn: &mut SqliteConnection) -> anyhow::Result<()> {
                     }
                 }
             };
-        } else if buf.starts_with("LIST") {
+        } else if buf.starts_with("LIST") || buf.starts_with("LS") {
             let posts = lib::load_all_posts(conn)?;
             trace!("loaded posts for display: {posts:#?}");
-            lib::print_posts(&posts);
+            table_posts(&posts);
         } else if buf.starts_with("NEW") {
             let post = PostDraft::interactive_create()?;
             let _ = post.post(conn).inspect_err(|e| {
@@ -118,10 +110,6 @@ fn repl(conn: &mut SqliteConnection) -> anyhow::Result<()> {
     Ok(())
 }
 
-fn usage() {
-    println!("{}", USAGE_TEXT.red().bold());
-}
-
 fn get_id(buf: &str) -> Option<i32> {
     match buf.split(' ').nth(1) {
         Some(s) => match s.parse() {

members/diesel-demo/src/models.rs

@@ -1,6 +1,7 @@
 use std::fmt::Display;
 use std::io::{self, Read, Write};
 
+use dialoguer::Confirm;
 use diesel::prelude::*;
 use libpt::log::{info, trace};
 
@@ -40,6 +41,13 @@ impl Post {
         Ok(())
     }
     pub fn delete(conn: &mut SqliteConnection, id: i32) -> anyhow::Result<()> {
+        let confirmation = Confirm::new()
+            .with_prompt(format!("You are about to delete post {id}, continue?"))
+            .interact()?;
+        if !confirmation {
+            return Ok(());
+        }
+
         use crate::schema::posts::dsl::posts;
 
         let post = diesel::delete(posts.find(id))
@@ -50,20 +58,6 @@ impl Post {
     }
 }
 
-impl Display for Post {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        if !self.published {
-            writeln!(f, "this post has not yet been published!")
-        } else {
-            writeln!(
-                f,
-                "\n{:<60} | published: {:<5}\n{:=^140}\n\n{}",
-                self.title, self.published, "", self.body
-            )
-        }
-    }
-}
-
 #[derive(Insertable, Debug)]
 #[diesel(table_name = crate::schema::posts)]
 #[diesel(check_for_backend(diesel::sqlite::Sqlite))] // optional but improves generated compiler errors