feat: add dependency insights field

Signed-off-by: Luke-zhang-04 <luke.zhang2004dev@gmail.com>

Cargo.toml

@@ -22,6 +22,7 @@ priority = "optional"
 color_quant = "1.1" # Use version required by image
 colored= "2.0.0"
 git2 = { version = "0.13.12", default-features = false }
+json = "0.12.4"
 tokei = "12.0.0"
 askalono = "0.4.3"
 bytecount = "0.6.0"
@@ -46,4 +47,4 @@ more-asserts = "0.2"
 paste = "1"
 
 [features]
-fail-on-deprecated = []
+fail-on-deprecated = []

src/onefetch/deps.rs

@@ -18,24 +18,26 @@ impl std::fmt::Display for PackageManager {
 
 type DependencyParser = fn(&str) -> Option<i32>;
 
-struct Detector {
+pub struct Detector {
     package_managers: HashMap<String, (DependencyParser, PackageManager)>,
 }
 
 fn npm(contents: &str) -> Option<i32> {
-    Some(0)
+    let parsed = json::parse(contents).unwrap();
+
+    Some(parsed["dependencies"].len() as i32)
 }
 
 impl Detector {
-    pub fn new(&self) -> Detector {
+    pub fn new() -> Self {
         let mut package_managers: HashMap<String, (DependencyParser, PackageManager)> =
             HashMap::new();
         package_managers.insert(String::from("package.json"), (npm, PackageManager::Npm));
 
-        Detector { package_managers }
+        Self { package_managers }
     }
 
-    pub fn get_dep_count(&self, dir: &str) -> Result<String> {
+    pub fn get_deps_info(&self, dir: &str) -> Result<String> {
         fn is_package_file(detector: &Detector, file_name: &str) -> bool {
             detector
                 .package_managers

src/onefetch/info.rs

@@ -1,6 +1,6 @@
 use {
     crate::onefetch::{
-        cli::Cli, commit_info::CommitInfo, error::*, language::Language, license::Detector,
+        cli::Cli, commit_info::CommitInfo, deps, error::*, language::Language, license::Detector,
         text_color::TextColor,
     },
     colored::{Color, ColoredString, Colorize},
@@ -18,6 +18,7 @@ pub struct Info {
     creation_date: String,
     pub dominant_language: Language,
     languages: Vec<(Language, f64)>,
+    dependencies: String,
     authors: Vec<(String, usize, usize)>,
     last_change: String,
     repo_url: String,
@@ -118,6 +119,15 @@ impl std::fmt::Display for Info {
             )?;
         }
 
+        if !self.config.disabled_fields.dependencies && !self.dependencies.is_empty() {
+            writeln!(
+                f,
+                "{}{}",
+                &self.get_formatted_subtitle_label("Dependencies"),
+                &self.dependencies.color(self.color_set.info),
+            )?;
+        }
+
         if !self.config.disabled_fields.authors && !self.authors.is_empty() {
             let title = if self.authors.len() > 1 {
                 "Authors"
@@ -244,6 +254,7 @@ impl Info {
         let last_change = Info::get_date_of_last_commit(&git_history);
         let project_license = Detector::new()?.get_project_license(workdir_str);
         let dominant_language = Language::get_dominant_language(&languages_stats);
+        let dependencies = deps::Detector::new().get_deps_info(workdir_str).unwrap();
         let colors = Info::get_colors(
             &config.ascii_language,
             &dominant_language,
@@ -261,6 +272,7 @@ impl Info {
             creation_date: creation_date?,
             dominant_language,
             languages: languages_stats,
+            dependencies,
             authors,
             last_change: last_change?,
             repo_url: repository_url,

src/onefetch/info_fields.rs

@@ -11,6 +11,7 @@ pub struct InfoFieldOn {
     pub head: bool,
     pub version: bool,
     pub created: bool,
+    pub dependencies: bool,
     pub languages: bool,
     pub authors: bool,
     pub last_change: bool,
@@ -30,6 +31,7 @@ pub enum InfoFields {
     HEAD,
     Version,
     Created,
+    Dependencies,
     Languages,
     Authors,
     LastChange,
@@ -57,6 +59,7 @@ pub fn get_disabled_fields(fields_to_hide: Vec<String>) -> Result<InfoFieldOn> {
             InfoFields::HEAD => disabled_fields.head = true,
             InfoFields::Version => disabled_fields.version = true,
             InfoFields::Created => disabled_fields.created = true,
+            InfoFields::Dependencies => disabled_fields.dependencies = true,
             InfoFields::Languages => disabled_fields.languages = true,
             InfoFields::Authors => disabled_fields.authors = true,
             InfoFields::LastChange => disabled_fields.last_change = true,