introduce use env_logger

related to https://github.com/denisidoro/navi/issues/576

For the following config

cheats:
  paths:
    - C:\\Users\\Administrator\\AppData\\Roaming\\navi\\cheat
    - C:\\Users\\Administrator\\AppData\\Roaming\\navi\\cheat

navi now gets incorrect paths on Windows, since the seperator `:` for
path join is a valid component.

[2023-05-12T08:58:26Z DEBUG navi::commands::core] Filesystem(
        Some(
            "C:\\\\Users\\\\Administrator\\\\AppData\\\\Roaming\\\\navi\\\\cheat:C:\\\\Users\\\\Administrator\\\\AppData\\\\Roaming\\\\navi\\\\cheat",
        ),
    )
[2023-05-12T08:58:28Z DEBUG navi::filesystem] filesystem::Fetcher = Fetcher {
        path: Some(
            "C:\\\\Users\\\\Administrator\\\\AppData\\\\Roaming\\\\navi\\\\cheat:C:\\\\Users\\\\Administrator\\\\AppData\\\\Roaming\\\\navi\\\\cheat",
        ),
        files: RefCell {
            value: [],
        },
    }

12 files changed, 54 insertions, 15 deletions

diff --git a/.gitignore b/.gitignore
index 53eaa21..3f2d71b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /target
 **/*.rs.bk
+navi.log
diff --git a/Cargo.lock b/Cargo.lock
index bbdffee..58753ad 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -261,6 +261,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
 [[package]]
+name = "env_logger"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85cdab6a89accf66733ad5a1693a4dcced6aeff64602b634530dd73c1f3ee9f0"
+dependencies = [
+ "humantime",
+ "log",
+]
+
+[[package]]
 name = "errno"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -345,6 +355,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "humantime"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
+
+[[package]]
 name = "indexmap"
 version = "1.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -412,9 +428,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.14"
+version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
 dependencies = [
  "cfg-if",
 ]
@@ -456,8 +472,10 @@ dependencies = [
  "dns_common",
  "dns_common_derive",
  "edit",
+ "env_logger",
  "etcetera",
  "lazy_static",
+ "log",
  "regex",
  "remove_dir_all 0.8.2",
  "serde",
diff --git a/Cargo.toml b/Cargo.toml
index a9dc3d1..0115aca 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,6 +36,8 @@ serde_yaml = "0.9.21"
 dns_common_derive = { version = "0.2.1" }
 dns_common = { version = "0.2.1", default-features = false, features = ["yaml", "json"] }
 unicode-width = "0.1.10"
+log = "0.4"
+env_logger = { version = "0.10", default_features = false, features = ["humantime"] }
 
 [lib]
 name = "navi"
diff --git a/src/bin/main.rs b/src/bin/main.rs
index ad67e71..48c2fa0 100644
--- a/src/bin/main.rs
+++ b/src/bin/main.rs
@@ -1,6 +1,5 @@
 extern crate navi;
 
-use std::fmt::Debug;
 use thiserror::Error;
 
 #[derive(Error, Debug)]
@@ -25,5 +24,18 @@ impl FileAnIssue {
 }
 
 fn main() -> Result<(), anyhow::Error> {
-    navi::handle().map_err(|e| FileAnIssue::new(e).into())
+    init_logger()?;
+    navi::handle().map_err(|e| {
+        log::error!("{e:?}");
+        FileAnIssue::new(e).into()
+    })
+}
+
+fn init_logger() -> anyhow::Result<()> {
+    let file = std::fs::File::create("navi.log")?;
+    env_logger::builder()
+        .target(env_logger::Target::Pipe(Box::new(file)))
+        .init();
+
+    Ok(())
 }
diff --git a/src/commands/core/mod.rs b/src/commands/core/mod.rs
index ded24f1..2a3d334 100644
--- a/src/commands/core/mod.rs
+++ b/src/commands/core/mod.rs
@@ -44,7 +44,9 @@ pub fn init(fetcher: Box<dyn Fetcher>) -> Result<()> {
 }
 
 pub fn get_fetcher() -> Result<Box<dyn Fetcher>> {
-    match CONFIG.source() {
+    let source = CONFIG.source();
+    log::debug!("{source:#?}");
+    match source {
         Source::Cheats(query) => {
             let lines = cheatsh::call(&query)?;
             let fetcher = Box::new(StaticFetcher::new(lines));
diff --git a/src/commands/mod.rs b/src/commands/mod.rs
index 783cbad..257df1c 100644
--- a/src/commands/mod.rs
+++ b/src/commands/mod.rs
@@ -12,6 +12,7 @@ use crate::prelude::*;
 pub fn handle() -> Result<()> {
     use crate::config::Command::*;
 
+    log::debug!("CONFIG = {:#?}", &*CONFIG);
     match CONFIG.cmd() {
         None => commands::core::main(),
 
diff --git a/src/config/cli.rs b/src/config/cli.rs
index 7e2ec20..c6f86f9 100644
--- a/src/config/cli.rs
+++ b/src/config/cli.rs
@@ -117,6 +117,7 @@ pub enum Command {
     Info(commands::info::Input),
 }
 
+#[derive(Debug)]
 pub enum Source {
     Filesystem(Option<String>),
     Tldr(String),
diff --git a/src/config/env.rs b/src/config/env.rs
index 7afd27e..ba428fc 100644
--- a/src/config/env.rs
+++ b/src/config/env.rs
@@ -2,6 +2,7 @@ use crate::env_var;
 use crate::finder::FinderChoice;
 use crate::prelude::*;
 
+#[derive(Debug)]
 pub struct EnvConfig {
     pub config_yaml: Option<String>,
     pub config_path: Option<String>,
diff --git a/src/config/mod.rs b/src/config/mod.rs
index 774f930..68638cf 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -12,6 +12,7 @@ use yaml::YamlConfig;
 lazy_static! {
     pub static ref CONFIG: Config = Config::new();
 }
+#[derive(Debug)]
 pub struct Config {
     yaml: YamlConfig,
     clap: ClapConfig,
diff --git a/src/config/yaml.rs b/src/config/yaml.rs
index 8c4a693..70a5a17 100644
--- a/src/config/yaml.rs
+++ b/src/config/yaml.rs
@@ -6,7 +6,7 @@ use crate::prelude::*;
 use crossterm::style::Color as TerminalColor;
 use serde::de;
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 pub struct Color(#[serde(deserialize_with = "color_deserialize")] TerminalColor);
 
 impl Color {
@@ -24,7 +24,7 @@ where
         .map_err(|_| de::Error::custom(format!("Failed to deserialize color: {s}")))
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 #[serde(default)]
 pub struct ColorWidth {
     pub color: Color,
@@ -32,7 +32,7 @@ pub struct ColorWidth {
     pub min_width: u16,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 #[serde(default)]
 pub struct Style {
     pub tag: ColorWidth,
@@ -40,7 +40,7 @@ pub struct Style {
     pub snippet: ColorWidth,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 #[serde(default)]
 pub struct Finder {
     #[serde(deserialize_with = "finder_deserialize")]
@@ -58,27 +58,27 @@ where
         .map_err(|_| de::Error::custom(format!("Failed to deserialize finder: {s}")))
 }
 
-#[derive(Deserialize, Default)]
+#[derive(Deserialize, Default, Debug)]
 #[serde(default)]
 pub struct Cheats {
     pub path: Option<String>,
     pub paths: Vec<String>,
 }
 
-#[derive(Deserialize, Default)]
+#[derive(Deserialize, Default, Debug)]
 #[serde(default)]
 pub struct Search {
     pub tags: Option<String>,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 #[serde(default)]
 pub struct Shell {
     pub command: String,
     pub finder_command: Option<String>,
 }
 
-#[derive(Deserialize, Default)]
+#[derive(Deserialize, Default, Debug)]
 #[serde(default)]
 pub struct YamlConfig {
     pub style: Style,
diff --git a/src/filesystem.rs b/src/filesystem.rs
index 6340f82..ed0f32e 100644
--- a/src/filesystem.rs
+++ b/src/filesystem.rs
@@ -125,6 +125,7 @@ fn interpolate_paths(paths: String) -> String {
     newtext
 }
 
+#[derive(Debug)]
 pub struct Fetcher {
     path: Option<String>,
     files: RefCell<Vec<String>>,
@@ -180,6 +181,7 @@ impl fetcher::Fetcher for Fetcher {
             }
         }
 
+        log::debug!("filesystem::Fetcher = {self:#?}");
         Ok(found_something)
     }
 
diff --git a/src/lib.rs b/src/lib.rs
index cbae52d..f4a434f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,7 +1,5 @@
 #[macro_use]
 extern crate lazy_static;
-// #[macro_use]
-// extern crate anyhow;
 
 mod clients;
 mod commands;