removed faulty ghcr implementation

.gitignore

@@ -1 +1,7 @@
+# build files
 /target
+
+# test files
+docker-compose.yml
+docker-compose.yaml
+docker-compose.yml.yml

Cargo.lock

@@ -673,7 +673,7 @@ dependencies = [
 
 [[package]]
 name = "reel-moby"
-version = "1.0.0"
+version = "1.2.1"
 dependencies = [
  "chrono",
  "lazy_static",

Cargo.toml

@@ -1,8 +1,8 @@
 
 [package]
 name = "reel-moby"
-version = "1.0.0"
-edition = "2018"
+version = "1.2.1"
+edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

src/common/display_duration_ext.rs

@@ -0,0 +1,28 @@
+pub trait DisplayDurationExt {
+    /// displays a duration in a human readable form
+    fn display(&self) -> String;
+}
+
+impl DisplayDurationExt for chrono::Duration {
+    fn display(&self) -> String {
+        if self.num_weeks() == 52 {
+            format!("{} Year", (self.num_weeks() / 52) as i32)
+        } else if self.num_weeks() > 103 {
+            format!("{} Years", (self.num_weeks() / 52) as i32)
+        } else if self.num_days() == 1 {
+            format!("{} Day", self.num_days())
+        } else if self.num_days() > 1 {
+            format!("{} Days", self.num_days())
+        } else if self.num_hours() == 1 {
+            format!("{} Hour", self.num_hours())
+        } else if self.num_hours() > 1 {
+            format!("{} Hours", self.num_hours())
+        } else if self.num_minutes() == 1 {
+            format!("{} Minute", self.num_minutes())
+        } else if self.num_minutes() > 1 {
+            format!("{} Minutes", self.num_minutes())
+        } else {
+            format!("{} Seconds", self.num_seconds())
+        }
+    }
+}

src/common/mod.rs

@@ -0,0 +1 @@
+pub mod display_duration_ext;

src/main.rs

@@ -1,6 +1,7 @@
 use std::path::PathBuf;
 use structopt::StructOpt;
 
+mod common;
 mod repo;
 mod repository;
 mod ui;
@@ -9,10 +10,6 @@ mod widget;
 /// helps you searching or updating tags of your used docker images
 #[derive(StructOpt, Debug)]
 pub struct Opt {
-    /// Show architectures of images and their sizes
-    #[structopt(short, long)]
-    verbose: bool,
-
     /// A custom path to a docker-compose file
     #[structopt(short, long, parse(from_os_str))]
     file: Option<PathBuf>,

src/repo.rs

@@ -25,9 +25,12 @@ pub enum Repo {
 }
 
 /// check if yaml line matches and returns the split of repo string and rest
+/// the first &str is the image tag
+/// it will be used to not change the identation
+/// the second &str will the the identifier for the image
 pub fn match_yaml_image(input: &str) -> Result<(&str, &str), Error> {
     lazy_static::lazy_static! {
-        static ref REGEX: Regex = Regex::new(r"^( +image *: *)([a-z0-9\./:]+)").unwrap();
+        static ref REGEX: Regex = Regex::new(r"^( +image *: *)([a-z0-9\-\./:]+)").unwrap();
     }
     let caps = match REGEX.captures(input) {
         Some(caps) => caps,
@@ -37,6 +40,7 @@ pub fn match_yaml_image(input: &str) -> Result<(&str, &str), Error> {
     Ok((caps.get(1).unwrap().as_str(), caps.get(2).unwrap().as_str()))
 }
 
+/// takes the identifier and splits off the tag it exists
 pub fn split_tag_from_repo(input: &str) -> Result<(&str, &str), Error> {
     lazy_static::lazy_static! {
         static ref REGEX: Regex = Regex::new(r"^([a-z0-9\./[^:]]*):?([a-z0-9._\-]*)").unwrap();
@@ -59,6 +63,7 @@ pub fn split_tag_from_repo(input: &str) -> Result<(&str, &str), Error> {
     Ok((front, back))
 }
 
+/// takes an identifier and changes it to a Repo enum
 pub fn split_repo_without_tag(repo: &str) -> Result<Repo, Error> {
     let repo = repo.trim();
     let split_repo: Vec<&str> = repo.split('/').collect();
@@ -98,58 +103,79 @@ mod tests {
 
     #[test]
     fn test_split_repo_without_tag() {
-        use crate::repo::split_repo_without_tag as test_fn;
-        assert_eq!(test_fn(""), Err(Error::MisformedInput));
-        assert_eq!(test_fn("NGINX"), Err(Error::MisformedInput));
-        assert_eq!(test_fn("nginx"), Ok(Repo::Project("nginx".into())));
-        assert_eq!(
-            test_fn("library/nginx"),
-            Ok(Repo::WithOrga("library".into(), "nginx".into()))
-        );
-        assert_eq!(
-            test_fn("ghcr.io/library/nginx"),
-            Ok(Repo::WithServer(
-                "ghcr.io".into(),
-                "library".into(),
-                "nginx".into(),
-            ))
-        );
+        let input: Vec<(&str, Result<Repo, Error>)> = vec![
+            ("", Err(Error::MisformedInput)),
+            ("NGINX", Err(Error::MisformedInput)),
+            ("nginx", Ok(Repo::Project("nginx".into()))),
+            (
+                "library/nginx",
+                Ok(Repo::WithOrga("library".into(), "nginx".into())),
+            ),
+            (
+                "ghcr.io/library/nginx",
+                Ok(Repo::WithServer(
+                    "ghcr.io".into(),
+                    "library".into(),
+                    "nginx".into(),
+                )),
+            ),
+            (
+                "te-st/test-hypen",
+                Ok(Repo::WithOrga("te-st".into(), "test-hypen".into())),
+            ),
+            (
+                "test/test.dot",
+                Ok(Repo::WithOrga("test".into(), "test.dot".into())),
+            ),
+        ];
+
+        for i in input {
+            assert_eq!(super::split_repo_without_tag(i.0), i.1);
+        }
     }
 
     #[test]
     fn test_match_yaml_image() {
-        use crate::repo::match_yaml_image as test_fn;
-        assert_eq!(test_fn(""), Err(Error::NoTagFound));
-        assert_eq!(test_fn("version: '2'"), Err(Error::NoTagFound));
-        assert_eq!(test_fn("image: "), Err(Error::NoTagFound));
-        assert_eq!(test_fn("  image: "), Err(Error::NoTagFound));
-        assert_eq!(test_fn("  image: nginx"), Ok(("  image: ", "nginx")));
-        assert_eq!(
-            test_fn("  image: library/nginx"),
-            Ok(("  image: ", "library/nginx"))
-        );
-        assert_eq!(
-            test_fn("  image: ghcr.io/library/nginx"),
-            Ok(("  image: ", "ghcr.io/library/nginx"))
-        );
-        assert_eq!(test_fn("#   image: nginx"), Err(Error::NoTagFound));
-        assert_eq!(
-            test_fn("   image: nginx #comment"),
-            Ok(("   image: ", "nginx"))
-        );
+        let input: Vec<(&str, Result<(&str, &str), Error>)> = vec![
+            ("", Err(Error::NoTagFound)),
+            ("version: '2'", Err(Error::NoTagFound)),
+            ("image: ", Err(Error::NoTagFound)),
+            ("  image: ", Err(Error::NoTagFound)),
+            ("  image: nginx", Ok(("  image: ", "nginx"))),
+            ("  image: library/nginx", Ok(("  image: ", "library/nginx"))),
+            (
+                "  image: gchr.io/library/nginx",
+                Ok(("  image: ", "gchr.io/library/nginx")),
+            ),
+            ("  image: nginx # comment", Ok(("  image: ", "nginx"))),
+            ("  image: test-hyphen", Ok(("  image: ", "test-hyphen"))),
+            ("  image: test.dot", Ok(("  image: ", "test.dot"))),
+        ];
+
+        for i in input {
+            assert_eq!(super::match_yaml_image(i.0), i.1);
+        }
     }
 
     #[test]
     fn test_split_tag_from_repo() {
-        use crate::repo::split_tag_from_repo as test_fn;
-        assert_eq!(test_fn("nginx"), Ok(("nginx", "")));
-        assert_eq!(test_fn("library/nginx"), Ok(("library/nginx", "")));
-        assert_eq!(
-            test_fn("ghcr.io/library/nginx"),
-            Ok(("ghcr.io/library/nginx", ""))
-        );
-        assert_eq!(test_fn("nginx:"), Ok(("nginx", "")));
-        assert_eq!(test_fn("nginx:1"), Ok(("nginx", "1")));
-        assert_eq!(test_fn("nginx:latest"), Ok(("nginx", "latest")));
+        let input: Vec<(&str, Result<(&str, &str), super::Error>)> = vec![
+            ("nginx", Ok(("nginx", ""))),
+            ("library/nginx", Ok(("library/nginx", ""))),
+            ("ghcr.io/library/nginx", Ok(("ghcr.io/library/nginx", ""))),
+            ("nginx:", Ok(("nginx", ""))),
+            ("nginx:1", Ok(("nginx", "1"))),
+            ("nginx:latest", Ok(("nginx", "latest"))),
+            ("hy-phen:latest", Ok(("hy-phen", "latest"))),
+            ("test.dot:latest", Ok(("test.dot", "latest"))),
+            (
+                "woodpeckerci/woodpecker-server",
+                Ok(("woodpeckerci/woodpecker-server", "")),
+            ),
+        ];
+
+        for i in input {
+            assert_eq!(super::split_tag_from_repo(i.0), i.1);
+        }
     }
 }

src/repository/dockerhub.rs

@@ -5,6 +5,8 @@ use crate::repository::Error;
 #[derive(Deserialize, Debug, Clone)]
 struct ImageDetails {
     architecture: String,
+    os: String,
+    variant: Option<String>,
     size: usize,
 }
 
@@ -26,6 +28,8 @@ impl Images {
                 .iter()
                 .map(|d| super::TagDetails {
                     arch: Some(d.architecture.clone()),
+                    variant: Some(d.variant.clone().unwrap_or_default()),
+                    os: Some(d.os.clone()),
                     size: Some(d.size),
                 })
                 .collect(),

src/repository/ghcr.rs

@@ -1,73 +0,0 @@
-use serde::Deserialize;
-
-use crate::repository::Error;
-
-#[derive(Deserialize)]
-struct Token {
-    token: String,
-}
-
-#[derive(Deserialize)]
-pub struct Ghcr {
-    tags: Vec<String>,
-}
-
-impl Ghcr {
-    /// fetches tag information with a repository name in the form of organization/repository or library/repository in the case of official images from docker
-    pub fn create_repo(repo: &str) -> Result<super::Repo, Error> {
-        let request_token = format!("https://ghcr.io/token?scope=repository:{}:pull", repo);
-        let response = match reqwest::blocking::get(request_token) {
-            Err(e) => return Err(Error::Fetching(format!("reqwest error: {}", e))),
-            Ok(response) => response,
-        };
-
-        let token = match response.json::<Token>() {
-            Err(e) => return Err(Error::Converting(format!("invalid token json: {}", e))),
-            Ok(token) => token.token,
-        };
-
-        let request = format!("https://ghcr.io/v2/{}/tags/list?n=100", repo);
-        let client = reqwest::blocking::Client::new();
-        let response = match client
-            .get(request)
-            .header(reqwest::header::AUTHORIZATION, format!("Bearer {}", token))
-            .send()
-        {
-            // let response = match reqwest::blocking::get(url) {
-            Ok(result) => result,
-            Err(e) => return Err(Error::Fetching(format!("reqwest error: {}", e))),
-        };
-
-        //convert it to json
-        let tags = match response.json::<Self>() {
-            Ok(result) => result,
-            Err(e) => return Err(Error::Converting(format!("invalid json: {}", e))),
-        };
-
-        if tags.tags.is_empty() {
-            return Err(Error::NoTagsFound);
-        }
-
-        Ok(super::Repo {
-            tags: tags
-                .tags
-                .iter()
-                .map(|t| super::Tag {
-                    name: t.clone(),
-                    details: vec![],
-                    last_updated: None,
-                })
-                .collect(),
-            next_page: None,
-        })
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::Ghcr;
-    #[test]
-    fn test_ghcr() {
-        Ghcr::create_repo("ghcr.io/linuxserver/beets").unwrap();
-    }
-}

src/repository/mod.rs

@@ -1,10 +1,10 @@
 mod dockerhub;
-mod ghcr;
 
 use std::fmt;
 
 use chrono::DateTime;
 
+use crate::common::display_duration_ext::DisplayDurationExt;
 use crate::repo;
 
 #[derive(Debug, PartialEq)]
@@ -27,25 +27,12 @@ impl fmt::Display for Error {
     }
 }
 
-#[derive(Clone)]
+#[derive(Clone, PartialEq)]
 pub struct TagDetails {
-    arch: Option<String>,
-    size: Option<usize>,
-}
-
-impl fmt::Display for TagDetails {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        let size = match self.size {
-            None => "".to_string(),
-            Some(s) => (s / 1024 / 1024).to_string(),
-        };
-        write!(
-            f,
-            "{}|{}MB",
-            self.arch.as_ref().unwrap_or(&"".to_string()),
-            size
-        )
-    }
+    pub arch: Option<String>,
+    pub variant: Option<String>,
+    pub os: Option<String>,
+    pub size: Option<usize>,
 }
 
 #[derive(Clone)]
@@ -61,32 +48,22 @@ impl Tag {
     }
 
     pub fn get_name_with_details(&self) -> String {
-        //architecture infos
-        let mut arch = String::new();
-        for image in self.details.iter().take(1) {
-            arch.push_str(&format!("{}", image));
-        }
-        for image in self.details.iter().skip(1) {
-            arch.push_str(&format!(", {}", image));
-        }
-        let arch = if !arch.is_empty() {
-            format!(" [{}]", arch)
-        } else {
-            String::new()
-        };
-
         let dif = match &self.last_updated {
             None => "".to_string(),
             Some(last_updated) => {
                 let now = chrono::Utc::now();
                 let rfc3339 = DateTime::parse_from_rfc3339(last_updated).unwrap();
                 let dif = now - rfc3339.with_timezone(&chrono::Utc);
-                format!(" vor {}", format_time_nice(dif))
+                format!(", {} old", dif.display())
             }
         };
 
         if dif.is_empty() {}
-        format!("{}{}{}", self.name, dif, arch)
+        format!("{}{}", self.name, dif)
+    }
+
+    pub fn get_details(&self) -> &Vec<TagDetails> {
+        &self.details
     }
 }
 
@@ -105,10 +82,10 @@ impl Repo {
             Err(e) => return Err(Error::Converting(format!("{}", e))),
         };
 
-        if registry.unwrap_or_default() == "ghcr.io" {
-            ghcr::Ghcr::create_repo(&repo)
-        } else {
+        if registry.unwrap_or_default().is_empty() {
             dockerhub::DockerHub::create_repo(&repo)
+        } else {
+            return Err(Error::Converting("This registry is not supported".into()));
         }
     }
 
@@ -132,29 +109,6 @@ impl Repo {
     }
 }
 
-/// converts a given duration to a readable string
-fn format_time_nice(time: chrono::Duration) -> String {
-    if time.num_weeks() == 52 {
-        format!("{} Jahr", (time.num_weeks() / 52) as i32)
-    } else if time.num_weeks() > 103 {
-        format!("{} Jahren", (time.num_weeks() / 52) as i32)
-    } else if time.num_days() == 1 {
-        format!("{} Tag", time.num_days())
-    } else if time.num_days() > 1 {
-        format!("{} Tagen", time.num_days())
-    } else if time.num_hours() == 1 {
-        format!("{} Stunde", time.num_hours())
-    } else if time.num_hours() > 1 {
-        format!("{} Stunden", time.num_hours())
-    } else if time.num_minutes() == 1 {
-        format!("{} Minute", time.num_minutes())
-    } else if time.num_minutes() > 1 {
-        format!("{} Minuten", time.num_minutes())
-    } else {
-        format!("{} Sekunden", time.num_seconds())
-    }
-}
-
 /// checks the repo name and may add a prefix for official images
 pub fn check_repo(name: &str) -> Result<String, Error> {
     let repo = match repo::split_tag_from_repo(name) {

src/ui/default.rs

@@ -18,6 +18,7 @@ pub struct Ui {
     repo: crate::widget::repo_entry::RepoEntry,
     tags: crate::widget::tag_list::TagList,
     services: crate::widget::service_switcher::ServiceSwitcher,
+    details: crate::widget::details::Details,
     info: crate::widget::info::Info,
 }
 
@@ -28,6 +29,16 @@ pub enum State {
     SelectService,
 }
 
+impl std::fmt::Display for State {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            State::EditRepo => write!(f, "Edit repository"),
+            State::SelectTag => write!(f, "Select a tag"),
+            State::SelectService => write!(f, "Select a image"),
+        }
+    }
+}
+
 impl std::iter::Iterator for State {
     type Item = Self;
 
@@ -43,23 +54,18 @@ impl std::iter::Iterator for State {
 
 impl Ui {
     pub fn run(opt: &Opt) {
-        let (repo_id, load_repo) = match &opt.repo {
-            None => (
-                "enter a repository here or select one from file widget",
-                false,
-            ),
-            Some(repo) => (String::as_str(repo), true),
-        };
+        let repo_id = opt.repo.as_deref();
 
         let mut ui = Ui {
             state: State::SelectService,
             repo: repo_entry::RepoEntry::new(repo_id),
             tags: tag_list::TagList::with_status("Tags are empty"),
             services: service_switcher::ServiceSwitcher::new(&opt.file).unwrap(),
+            details: crate::widget::details::Details::new(),
             info: info::Info::new("Select image of edit Repository"),
         };
 
-        if load_repo {
+        if opt.repo.is_none() {
             ui.tags = tag_list::TagList::with_repo_name(ui.repo.get());
         }
 
@@ -80,7 +86,7 @@ impl Ui {
                         .direction(Direction::Vertical)
                         .constraints(
                             [
-                                Constraint::Min(9),
+                                Constraint::Length(10),
                                 Constraint::Length(3),
                                 Constraint::Min(7),
                                 Constraint::Length(2),
@@ -93,7 +99,12 @@ impl Ui {
                     rect.render_stateful_widget(list, chunks[0], state);
                     rect.render_widget(ui.repo.render(ui.state == State::EditRepo), chunks[1]);
                     let (list, state) = ui.tags.render(ui.state == State::SelectTag);
-                    rect.render_stateful_widget(list, chunks[2], state);
+                    let more_chunks = Layout::default()
+                        .direction(Direction::Horizontal)
+                        .constraints([Constraint::Min(15), Constraint::Length(28)].as_ref())
+                        .split(chunks[2]);
+                    rect.render_stateful_widget(list, more_chunks[0], state);
+                    rect.render_widget(ui.details.render(), more_chunks[1]);
                     rect.render_widget(ui.info.render(), chunks[3]);
                 })
                 .unwrap();
@@ -103,13 +114,14 @@ impl Ui {
                 Ok(Key::Ctrl('q')) => break 'core, //quit program without saving
                 Ok(Key::Char('\t')) => {
                     ui.state.next();
+                    ui.info.set_info(&ui.state);
                 }
                 Ok(Key::Ctrl('s')) => match ui.services.save() {
                     Err(e) => {
                         ui.info.set_info(&format!("{}", e));
                         continue;
                     }
-                    Ok(_) => ui.info.set_info("Saved compose file"),
+                    Ok(_) => ui.info.set_text("Saved compose file"),
                 },
                 Ok(Key::Ctrl('r')) => {
                     ui.repo.confirm();
@@ -139,7 +151,7 @@ impl Ui {
                 Ok(Key::Char(key)) => match ui.state {
                     State::SelectService => (),
                     State::EditRepo => {
-                        ui.info.set_info("Editing Repository");
+                        ui.info.set_text("Editing Repository");
                         ui.repo.handle_input(Key::Char(key));
                     }
                     State::SelectTag => (),
@@ -147,7 +159,7 @@ impl Ui {
                 Ok(Key::Backspace) => match ui.state {
                     State::SelectService => (),
                     State::EditRepo => {
-                        ui.info.set_info("Editing Repository");
+                        ui.info.set_text("Editing Repository");
                         ui.repo.handle_input(Key::Backspace);
                     }
                     State::SelectTag => (),
@@ -171,7 +183,10 @@ impl Ui {
                     }
                     State::SelectService => (),
                     State::EditRepo => (),
-                    State::SelectTag => ui.tags.handle_input(Key::Up),
+                    State::SelectTag => {
+                        ui.tags.handle_input(Key::Up);
+                        ui.details = ui.tags.create_detail_widget();
+                    }
                 },
                 Ok(Key::Down) => match ui.state {
                     State::SelectService if ui.services.find_next_match() => {
@@ -192,7 +207,10 @@ impl Ui {
                     }
                     State::SelectService => (),
                     State::EditRepo => (),
-                    State::SelectTag => ui.tags.handle_input(Key::Down),
+                    State::SelectTag => {
+                        ui.tags.handle_input(Key::Down);
+                        ui.details = ui.tags.create_detail_widget();
+                    }
                 },
                 _ => (),
             }

src/ui/no_yaml.rs

@@ -6,6 +6,7 @@ use tui::backend::TermionBackend;
 use tui::layout::{Constraint, Direction, Layout};
 use tui::Terminal;
 
+use crate::widget::details;
 use crate::widget::info;
 use crate::widget::repo_entry;
 use crate::widget::tag_list;
@@ -17,6 +18,15 @@ pub enum State {
     SelectTag,
 }
 
+impl std::fmt::Display for State {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            State::EditRepo => write!(f, "Edit repository"),
+            State::SelectTag => write!(f, "Select a tag"),
+        }
+    }
+}
+
 impl std::iter::Iterator for State {
     type Item = Self;
 
@@ -33,30 +43,24 @@ pub struct NoYaml {
     state: State,
     repo: repo_entry::RepoEntry,
     tags: tag_list::TagList,
+    details: details::Details,
     info: info::Info,
 }
 
 impl NoYaml {
     pub fn run(opt: &Opt) {
-        let (repo, load_repo) = match &opt.repo {
-            None => (
-                repo_entry::RepoEntry::new(
-                    "enter a repository or select one from docker-compose.yml",
-                ),
-                false,
-            ),
-            Some(repo_id) => (repo_entry::RepoEntry::new(repo_id), true),
-        };
+        let repo_id = opt.repo.as_deref();
 
         let mut ui = NoYaml {
             state: State::EditRepo,
-            repo,
+            repo: repo_entry::RepoEntry::new(repo_id),
             tags: tag_list::TagList::with_status("Tags are empty"),
+            details: details::Details::new(),
             info: info::Info::new("could not find a docker-compose file"),
         };
 
         // load tags if a repository was given thorugh paramter
-        if load_repo {
+        if opt.repo.is_none() {
             ui.tags = tag_list::TagList::with_repo_name(ui.repo.get());
         }
 
@@ -87,7 +91,12 @@ impl NoYaml {
 
                     rect.render_widget(ui.repo.render(ui.state == State::EditRepo), chunks[0]);
                     let (list, state) = ui.tags.render(ui.state == State::SelectTag);
-                    rect.render_stateful_widget(list, chunks[1], state);
+                    let more_chunks = Layout::default()
+                        .direction(Direction::Horizontal)
+                        .constraints([Constraint::Min(15), Constraint::Length(28)].as_ref())
+                        .split(chunks[1]);
+                    rect.render_stateful_widget(list, more_chunks[0], state);
+                    rect.render_widget(ui.details.render(), more_chunks[1]);
                     rect.render_widget(ui.info.render(), chunks[2]);
                 })
                 .unwrap();
@@ -97,6 +106,7 @@ impl NoYaml {
                 Ok(Key::Ctrl('q')) => break 'core,
                 Ok(Key::Char('\t')) => {
                     ui.state.next();
+                    ui.info.set_info(&ui.state);
                 }
                 Ok(Key::Ctrl('r')) => {
                     ui.repo.confirm();
@@ -111,7 +121,7 @@ impl NoYaml {
                 },
                 Ok(Key::Char(key)) => match ui.state {
                     State::EditRepo => {
-                        ui.info.set_info("Editing Repository");
+                        ui.info.set_text("Editing Repository");
                         ui.repo.handle_input(Key::Char(key));
                     }
                     State::SelectTag => {
@@ -120,18 +130,24 @@ impl NoYaml {
                 },
                 Ok(Key::Backspace) => match ui.state {
                     State::EditRepo => {
-                        ui.info.set_info("Editing Repository");
+                        ui.info.set_text("Editing Repository");
                         ui.repo.handle_input(Key::Backspace);
                     }
                     State::SelectTag => (),
                 },
                 Ok(Key::Up) => match ui.state {
                     State::EditRepo => (),
-                    State::SelectTag => ui.tags.handle_input(Key::Up),
+                    State::SelectTag => {
+                        ui.tags.handle_input(Key::Up);
+                        ui.details = ui.tags.create_detail_widget();
+                    }
                 },
                 Ok(Key::Down) => match ui.state {
                     State::EditRepo => (),
-                    State::SelectTag => ui.tags.handle_input(Key::Down),
+                    State::SelectTag => {
+                        ui.tags.handle_input(Key::Down);
+                        ui.details = ui.tags.create_detail_widget();
+                    }
                 },
                 _ => (),
             }

src/widget/details.rs

@@ -0,0 +1,61 @@
+use tui::style::{Color, Style};
+use tui::widgets::{Block, Borders, List};
+
+use crate::repository;
+
+pub struct Details {
+    details: Vec<repository::TagDetails>,
+}
+
+impl Details {
+    pub fn new() -> Self {
+        Self { details: vec![] }
+    }
+
+    pub fn with_list(details: &[crate::repository::TagDetails]) -> Self {
+        let mut detail = Self {
+            details: details.to_owned(),
+        };
+
+        detail.details.sort_by(|a, b| a.arch.cmp(&b.arch));
+        detail.details.dedup();
+        detail
+    }
+
+    pub fn get_details(&self) -> Vec<String> {
+        let mut lines = vec![format!("{:^10}|{:^6}|{:^6}", "ARCH", "OS", "SIZE")];
+        for d in &self.details {
+            lines.push(format!(
+                "{:^10}|{:^6}|{:^6}MB",
+                format!(
+                    "{}{}",
+                    d.arch.clone().unwrap_or_default(),
+                    d.variant.clone().unwrap_or_default()
+                ),
+                d.os.clone().unwrap_or_default(),
+                d.size.unwrap_or_default() / 1024 / 1024,
+            ));
+        }
+        lines
+    }
+
+    pub fn render(&self) -> List {
+        let items: Vec<tui::widgets::ListItem> = self
+            .get_details()
+            .iter()
+            .map(|l| {
+                tui::widgets::ListItem::new(l.to_string())
+                    .style(Style::default().fg(Color::White).bg(Color::Black))
+            })
+            .collect();
+
+        List::new(items)
+            .block(
+                Block::default()
+                    .title("Details")
+                    .borders(Borders::ALL)
+                    .border_style(Style::default()),
+            )
+            .style(Style::default().fg(Color::White).bg(Color::Black))
+    }
+}

src/widget/info.rs

@@ -27,7 +27,13 @@ impl Info {
             .highlight_style(Style::default().bg(Color::Black))
     }
 
-    pub fn set_info(&mut self, info: &str) {
+    /// set a text to display
+    pub fn set_text(&mut self, info: &str) {
         self.info = String::from(info);
     }
+
+    /// print a text to display
+    pub fn set_info(&mut self, text: &dyn std::fmt::Display) {
+        self.info = format!("{}", text);
+    }
 }

src/widget/mod.rs

@@ -1,3 +1,4 @@
+pub mod details;
 pub mod info;
 pub mod repo_entry;
 pub mod service_switcher;

src/widget/repo_entry.rs

@@ -7,14 +7,17 @@ pub struct RepoEntry {
     text: String,
     old_text: String,
     changed: bool,
+    default_text: bool,
 }
 
 impl RepoEntry {
-    pub fn new(text: &str) -> Self {
+    pub fn new(text: Option<&str>) -> Self {
+        let default_text = "enter a repository here or select one from file widget";
         Self {
-            text: String::from(text),
-            old_text: String::from(text),
+            text: String::from(text.unwrap_or(default_text)),
+            old_text: String::from(text.unwrap_or(default_text)),
             changed: false,
+            default_text: text.is_none(),
         }
     }
 
@@ -56,9 +59,14 @@ impl RepoEntry {
             Key::Char(c) => {
                 self.text.push(c);
                 self.changed = true;
+                self.default_text = false;
             }
             Key::Backspace => {
-                self.text.pop();
+                if self.default_text {
+                    self.text = String::new();
+                } else {
+                    self.text.pop();
+                }
                 self.changed = true;
             }
             Key::Esc => {

src/widget/service_switcher.rs

@@ -34,6 +34,7 @@ pub struct ServiceSwitcher {
 
 impl ServiceSwitcher {
     pub fn new(file: &Option<PathBuf>) -> Option<Self> {
+        //gather possible filenames
         let mut file_list = vec![
             PathBuf::from("docker-compose.yml"),
             PathBuf::from("docker-compose.yaml"),
@@ -43,6 +44,7 @@ impl ServiceSwitcher {
             Some(file) => file_list.insert(0, file.clone()),
         }
 
+        //try filenames
         for file in file_list {
             let list = match File::open(&file) {
                 Err(_) => continue,

src/widget/tag_list.rs

@@ -45,6 +45,7 @@ pub struct TagList {
 }
 
 impl TagList {
+    /// shows a text in the list and no tags
     pub fn with_status(status: &str) -> Self {
         Self {
             lines: vec![Line::Status(String::from(status))],
@@ -53,6 +54,7 @@ impl TagList {
         }
     }
 
+    /// list the tags of the repository if the input is valid
     pub fn with_repo_name(repo: String) -> Self {
         match repository::Repo::new(&repo) {
             Ok(tags) => Self::with_tags(tags),
@@ -60,7 +62,8 @@ impl TagList {
         }
     }
 
-    pub fn with_tags(mut tags: repository::Repo) -> Self {
+    /// list the tags of the input
+    fn with_tags(mut tags: repository::Repo) -> Self {
         let mut lines: Vec<Line> = tags
             .get_tags()
             .iter()
@@ -113,6 +116,18 @@ impl TagList {
         (items, &mut self.state)
     }
 
+    pub fn create_detail_widget(&self) -> crate::widget::details::Details {
+        use crate::widget::details::Details;
+
+        match self.state.selected() {
+            None => Details::new(),
+            Some(i) => match &self.lines[i] {
+                Line::Image(t) => Details::with_list(t.get_details()),
+                _ => Details::new(),
+            },
+        }
+    }
+
     pub fn handle_input(&mut self, key: termion::event::Key) {
         match key {
             Key::Down => self.next(),