From 47d20003c0dee4a483d5b8c203d90adb0b29055c Mon Sep 17 00:00:00 2001
From: Alexis Sellier <alexis@radicle.xyz>
Date: Tue, 15 Nov 2022 16:22:02 +0100
Subject: [PATCH] Implement `rad-patch`

Signed-off-by: Alexis Sellier <alexis@radicle.xyz>
---
 Cargo.lock                               |   7 +
 radicle-cli/Cargo.toml                   |   1 +
 radicle-cli/src/commands.rs              |   2 +
 radicle-cli/src/commands/ls.rs           |   2 +-
 radicle-cli/src/commands/patch.rs        | 158 ++++++++++++
 radicle-cli/src/commands/patch/common.rs | 162 ++++++++++++
 radicle-cli/src/commands/patch/create.rs | 307 +++++++++++++++++++++++
 radicle-cli/src/commands/patch/list.rs   | 167 ++++++++++++
 radicle-cli/src/lib.rs                   |   2 +
 radicle-cli/src/terminal/format.rs       |  16 +-
 radicle-cli/src/terminal/patch.rs        |   2 +-
 radicle/src/cob.rs                       |   9 +-
 radicle/src/cob/store.rs                 |   5 +
 radicle/src/rad.rs                       |  14 +-
 radicle/src/storage.rs                   |   2 +-
 radicle/src/storage/refs.rs              |  11 +
 16 files changed, 853 insertions(+), 14 deletions(-)
 create mode 100644 radicle-cli/src/commands/patch.rs
 create mode 100644 radicle-cli/src/commands/patch/common.rs
 create mode 100644 radicle-cli/src/commands/patch/create.rs
 create mode 100644 radicle-cli/src/commands/patch/list.rs

diff --git a/Cargo.lock b/Cargo.lock
index e3c63597..f924467a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1579,6 +1579,7 @@ dependencies = [
  "radicle-crypto",
  "serde_json",
  "thiserror",
+ "timeago",
  "zeroize",
 ]
 
@@ -2242,6 +2243,12 @@ dependencies = [
  "time-core",
 ]
 
+[[package]]
+name = "timeago"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6ec32dde57efb15c035ac074118d7f32820451395f28cb0524a01d4e94983b26"
+
 [[package]]
 name = "tinyvec"
 version = "1.6.0"
diff --git a/radicle-cli/Cargo.toml b/radicle-cli/Cargo.toml
index f319f97a..e0357bf8 100644
--- a/radicle-cli/Cargo.toml
+++ b/radicle-cli/Cargo.toml
@@ -16,6 +16,7 @@ lexopt = { version = "0.2" }
 log = { version = "0.4", features = ["std"] }
 serde_json = { version = "1" }
 thiserror = { version = "1" }
+timeago = { version = "0.3", default-features = false }
 zeroize = { version = "1.1" }
 
 [dependencies.radicle]
diff --git a/radicle-cli/src/commands.rs b/radicle-cli/src/commands.rs
index 5e58c099..46c3922c 100644
--- a/radicle-cli/src/commands.rs
+++ b/radicle-cli/src/commands.rs
@@ -14,6 +14,8 @@ pub mod rad_init;
 pub mod rad_inspect;
 #[path = "commands/ls.rs"]
 pub mod rad_ls;
+#[path = "commands/patch.rs"]
+pub mod rad_patch;
 #[path = "commands/push.rs"]
 pub mod rad_push;
 #[path = "commands/rm.rs"]
diff --git a/radicle-cli/src/commands/ls.rs b/radicle-cli/src/commands/ls.rs
index 6a8c57cb..692eddb3 100644
--- a/radicle-cli/src/commands/ls.rs
+++ b/radicle-cli/src/commands/ls.rs
@@ -51,7 +51,7 @@ pub fn run(_options: Options, ctx: impl term::Context) -> anyhow::Result<()> {
         let Ok(repo) = storage.repository(id) else { return };
         let Ok((_, head)) = repo.head() else { return };
         let Ok(Doc { payload, .. }) = repo.project_of(profile.id()) else { return };
-        let head = term::format::oid(&head);
+        let head = term::format::oid(head);
         table.push([
             term::format::bold(payload.name),
             term::format::tertiary(id),
diff --git a/radicle-cli/src/commands/patch.rs b/radicle-cli/src/commands/patch.rs
new file mode 100644
index 00000000..9147457b
--- /dev/null
+++ b/radicle-cli/src/commands/patch.rs
@@ -0,0 +1,158 @@
+#[path = "patch/common.rs"]
+mod common;
+#[path = "patch/create.rs"]
+mod create;
+#[path = "patch/list.rs"]
+mod list;
+
+use std::ffi::OsString;
+use std::str::FromStr;
+
+use anyhow::anyhow;
+
+use radicle::cob::patch::PatchId;
+use radicle::prelude::*;
+
+use crate::terminal as term;
+use crate::terminal::args::{Args, Error, Help};
+use crate::terminal::patch::Comment;
+
+pub const HELP: Help = Help {
+    name: "patch",
+    description: "Work with radicle patches",
+    version: env!("CARGO_PKG_VERSION"),
+    usage: r#"
+Usage
+
+    rad patch [<option>...]
+
+Create options
+
+    -u, --update [<id>]        Update an existing patch (default: no)
+        --[no-]sync            Sync patch to seed (default: sync)
+        --[no-]push            Push patch head to storage (default: true)
+    -m, --message [<string>]   Provide a comment message to the patch or revision (default: prompt)
+        --no-message           Leave the patch or revision comment message blank
+
+Options
+
+    -l, --list                 List all patches (default: false)
+        --help                 Print help
+"#,
+};
+
+#[derive(Debug)]
+pub enum Update {
+    No,
+    Any,
+    Patch(PatchId),
+}
+
+impl Default for Update {
+    fn default() -> Self {
+        Self::No
+    }
+}
+
+#[derive(Default, Debug)]
+pub struct Options {
+    pub list: bool,
+    pub verbose: bool,
+    pub sync: bool,
+    pub push: bool,
+    pub update: Update,
+    pub message: Comment,
+}
+
+impl Args for Options {
+    fn from_args(args: Vec<OsString>) -> anyhow::Result<(Self, Vec<OsString>)> {
+        use lexopt::prelude::*;
+
+        let mut parser = lexopt::Parser::from_args(args);
+        let mut list = false;
+        let mut verbose = false;
+        let mut sync = true;
+        let mut message = Comment::default();
+        let mut push = true;
+        let mut update = Update::default();
+
+        while let Some(arg) = parser.next()? {
+            match arg {
+                // Operations.
+                Long("list") | Short('l') => {
+                    list = true;
+                }
+                Long("update") | Short('u') => {
+                    if let Ok(val) = parser.value() {
+                        let val = val
+                            .to_str()
+                            .ok_or_else(|| anyhow!("patch id specified is not UTF-8"))?;
+                        let id = PatchId::from_str(val)
+                            .map_err(|_| anyhow!("invalid patch id '{}'", val))?;
+
+                        update = Update::Patch(id);
+                    } else {
+                        update = Update::Any;
+                    }
+                }
+
+                // Options.
+                Long("message") | Short('m') => {
+                    let txt: String = parser.value()?.to_string_lossy().into();
+                    message.append(&txt);
+                }
+                Long("no-message") => {
+                    message = Comment::Blank;
+                }
+                Long("sync") => {
+                    sync = true;
+                }
+                Long("no-sync") => {
+                    sync = false;
+                }
+                Long("push") => {
+                    push = true;
+                }
+                Long("no-push") => {
+                    push = false;
+                }
+
+                // Common.
+                Long("verbose") | Short('v') => {
+                    verbose = true;
+                }
+                Long("help") => {
+                    return Err(Error::Help.into());
+                }
+                _ => return Err(anyhow::anyhow!(arg.unexpected())),
+            }
+        }
+
+        Ok((
+            Options {
+                list,
+                sync,
+                message,
+                push,
+                update,
+                verbose,
+            },
+            vec![],
+        ))
+    }
+}
+
+pub fn run(options: Options, ctx: impl term::Context) -> anyhow::Result<()> {
+    let (workdir, id) = radicle::rad::cwd()
+        .map_err(|_| anyhow!("this command must be run in the context of a project"))?;
+
+    let profile = ctx.profile()?;
+    let storage = profile.storage.repository(id)?;
+
+    if options.list {
+        list::run(&storage, &profile, Some(workdir), options)?;
+    } else {
+        create::run(&storage, &profile, &workdir, options)?;
+    }
+    Ok(())
+}
diff --git a/radicle-cli/src/commands/patch/common.rs b/radicle-cli/src/commands/patch/common.rs
new file mode 100644
index 00000000..d8f1d982
--- /dev/null
+++ b/radicle-cli/src/commands/patch/common.rs
@@ -0,0 +1,162 @@
+use radicle::cob::patch::{MergeTarget, Patch, PatchId, PatchStore};
+use radicle::git;
+use radicle::git::raw::Oid;
+use radicle::prelude::*;
+use radicle::storage::git::Repository;
+use radicle::storage::Remote;
+
+use crate::terminal as term;
+use crate::terminal::args::Error;
+
+/// List of merge targets.
+#[derive(Debug, Default)]
+pub struct MergeTargets {
+    /// Merge targets that have already merged the patch.
+    pub merged: Vec<Remote>,
+    /// Merge targets that haven't merged the patch.
+    pub not_merged: Vec<(Remote, git::Oid)>,
+}
+
+/// Find potential merge targets for the given head.
+pub fn find_merge_targets(
+    head: &Oid,
+    branch: &git::RefStr,
+    storage: &Repository,
+) -> anyhow::Result<MergeTargets> {
+    let mut targets = MergeTargets::default();
+
+    for remote in storage.remotes()? {
+        let (_, remote) = remote?;
+        let Some(target_oid) = remote.refs.head(branch) else {
+            continue;
+        };
+
+        if is_merged(storage.raw(), target_oid.into(), *head)? {
+            targets.merged.push(remote);
+        } else {
+            targets.not_merged.push((remote, target_oid));
+        }
+    }
+    Ok(targets)
+}
+
+/// Return the [`Oid`] of the merge target.
+pub fn patch_merge_target_oid(target: MergeTarget, repository: &Repository) -> anyhow::Result<Oid> {
+    match target {
+        MergeTarget::Delegates => {
+            if let Ok((_, target)) = repository.head() {
+                Ok(*target)
+            } else {
+                anyhow::bail!(
+                    "failed to determine default branch head for project {}",
+                    repository.id,
+                );
+            }
+        }
+    }
+}
+
+/// Create a human friendly message about git's sync status.
+pub fn pretty_sync_status(
+    repo: &git::raw::Repository,
+    revision_oid: Oid,
+    head_oid: Oid,
+) -> anyhow::Result<String> {
+    let (a, b) = repo.graph_ahead_behind(revision_oid, head_oid)?;
+    if a == 0 && b == 0 {
+        return Ok(term::format::dim("up to date"));
+    }
+
+    let ahead = term::format::positive(a);
+    let behind = term::format::negative(b);
+
+    Ok(format!("ahead {}, behind {}", ahead, behind))
+}
+
+/// Make a human friendly string for commit version information.
+///
+/// For example '<oid> (branch1[, branch2])'.
+pub fn pretty_commit_version(
+    revision_oid: &Oid,
+    repo: &Option<git::raw::Repository>,
+) -> anyhow::Result<String> {
+    let mut oid = term::format::secondary(term::format::oid(*revision_oid));
+    let mut branches: Vec<String> = vec![];
+
+    if let Some(repo) = repo {
+        for r in repo.references()?.flatten() {
+            if !r.is_branch() {
+                continue;
+            }
+            if let (Some(oid), Some(name)) = (&r.target(), &r.shorthand()) {
+                if oid == revision_oid {
+                    branches.push(name.to_string());
+                };
+            };
+        }
+    };
+    if !branches.is_empty() {
+        oid = format!(
+            "{} {}",
+            oid,
+            term::format::yellow(format!("({})", branches.join(", "))),
+        );
+    }
+
+    Ok(oid)
+}
+
+/// Find patches with a merge base equal to the one provided.
+pub fn find_unmerged_with_base(
+    patch_head: Oid,
+    target_head: Oid,
+    merge_base: Oid,
+    patches: &PatchStore,
+    workdir: &git::raw::Repository,
+) -> anyhow::Result<Vec<(PatchId, Patch)>> {
+    // My patches.
+    let proposed: Vec<_> = patches.proposed_by(patches.public_key())?.collect();
+    let mut matches = Vec::new();
+
+    for (id, patch) in proposed {
+        let (_, rev) = patch.latest();
+
+        if !rev.merges.is_empty() {
+            continue;
+        }
+        if **patch.head() == patch_head {
+            continue;
+        }
+        // Merge-base between the two patches.
+        if workdir.merge_base(**patch.head(), target_head)? == merge_base {
+            matches.push((id, patch));
+        }
+    }
+    Ok(matches)
+}
+
+/// Return commits between the merge base and a head.
+pub fn patch_commits<'a>(
+    repo: &'a git::raw::Repository,
+    base: &Oid,
+    head: &Oid,
+) -> anyhow::Result<Vec<git::raw::Commit<'a>>> {
+    let mut commits = Vec::new();
+    let mut revwalk = repo.revwalk()?;
+    revwalk.push_range(&format!("{}..{}", base, head))?;
+
+    for rev in revwalk {
+        let commit = repo.find_commit(rev?)?;
+        commits.push(commit);
+    }
+    Ok(commits)
+}
+
+/// Check whether a commit has been merged into a target branch.
+pub fn is_merged(repo: &git::raw::Repository, target: Oid, commit: Oid) -> Result<bool, Error> {
+    if let Ok(base) = repo.merge_base(target, commit) {
+        Ok(base == commit)
+    } else {
+        Ok(false)
+    }
+}
diff --git a/radicle-cli/src/commands/patch/create.rs b/radicle-cli/src/commands/patch/create.rs
new file mode 100644
index 00000000..68579db9
--- /dev/null
+++ b/radicle-cli/src/commands/patch/create.rs
@@ -0,0 +1,307 @@
+use std::path::Path;
+
+use anyhow::{anyhow, Context};
+
+use radicle::cob::patch::{MergeTarget, Patch, PatchId, PatchStore};
+use radicle::git;
+use radicle::git::raw::Oid;
+use radicle::prelude::*;
+use radicle::storage::git::Repository;
+
+use crate::terminal as term;
+use crate::terminal::args::Error;
+
+use super::common;
+use super::{Options, Update};
+
+const PATCH_MSG: &str = r#"
+<!--
+Please enter a patch message for your changes. An empty
+message aborts the patch proposal.
+
+The first line is the patch title. The patch description
+follows, and must be separated with a blank line, just
+like a commit message. Markdown is supported in the title
+and description.
+-->
+"#;
+
+const REVISION_MSG: &str = r#"
+<!--
+Please enter a comment message for your patch update. Leaving this
+blank is also okay.
+-->
+"#;
+
+/// Run patch creation.
+pub fn run(
+    storage: &Repository,
+    profile: &Profile,
+    workdir: &git::raw::Repository,
+    options: Options,
+) -> anyhow::Result<()> {
+    let project = storage.project_of(&profile.public_key).context(format!(
+        "couldn't load project {} from local state",
+        storage.id
+    ))?;
+
+    term::headline(&format!(
+        "🌱 Creating patch for {}",
+        term::format::highlight(&project.name)
+    ));
+
+    let signer = term::signer(profile)?;
+    let cobs = radicle::cob::Store::open(profile.public_key, storage)?;
+    let patches = cobs.patches();
+
+    // `HEAD`; This is what we are proposing as a patch.
+    let head = workdir.head()?;
+    let head_oid = head.target().ok_or(anyhow!("invalid HEAD ref; aborting"))?;
+    let head_commit = workdir.find_commit(head_oid)?;
+    let head_branch = head
+        .shorthand()
+        .ok_or(anyhow!("cannot create patch from detached head; aborting"))?;
+
+    // Make sure the `HEAD` commit can be found in the monorepo. Otherwise there
+    // is no way for anyone to merge this patch.
+    let mut spinner = term::spinner(format!(
+        "Looking for HEAD ({}) in storage...",
+        term::format::secondary(term::format::oid(head_oid))
+    ));
+    if storage.commit(head_oid.into()).is_err() {
+        if !options.push {
+            spinner.failed();
+            term::blank();
+
+            return Err(Error::WithHint {
+                err: anyhow!("Current branch head was not found in storage"),
+                hint: "hint: run `git push rad` and try again",
+            }
+            .into());
+        }
+        spinner.message("Pushing HEAD to storage...");
+
+        let output = git::run::<_, _, &str, &str>(Path::new("."), ["push", "rad"], [])?;
+        if options.verbose {
+            spinner.finish();
+            term::blob(output);
+        }
+    }
+    spinner.finish();
+
+    // Determine the merge target for this patch. This can ben any tracked remote's "default"
+    // branch, as well as your own (eg. `rad/master`).
+    let mut spinner = term::spinner("Analyzing remotes...");
+    let targets =
+        common::find_merge_targets(&head_oid, project.default_branch.as_refstr(), storage)?;
+
+    // eg. `refs/namespaces/<peer>/refs/heads/master`
+    let (target_peer, target_oid) = match targets.not_merged.as_slice() {
+        [] => {
+            spinner.message("All tracked peers are up to date.");
+            return Ok(());
+        }
+        [target] => target,
+        _ => {
+            // TODO: Let user select which branch to use as a target.
+            todo!();
+        }
+    };
+    // TODO: Tell user how many peers don't have this change.
+    spinner.finish();
+
+    // TODO: Handle case where `rad/master` isn't up to date with the target.
+    // In that case we should warn the user that their master branch is not up
+    // to date, and error out, unless the user specifies manually the merge
+    // base.
+
+    // The merge base is basically the commit at which the histories diverge.
+    let base_oid = workdir.merge_base((*target_oid).into(), head_oid)?;
+    let commits = common::patch_commits(workdir, &base_oid, &head_oid)?;
+
+    let patch = match &options.update {
+        Update::No => None,
+        Update::Any => {
+            let mut spinner = term::spinner("Finding patches to update...");
+            let mut result = common::find_unmerged_with_base(
+                head_oid,
+                **target_oid,
+                base_oid,
+                &patches,
+                workdir,
+            )?;
+
+            if let Some((id, patch)) = result.pop() {
+                if result.is_empty() {
+                    spinner.message(format!(
+                        "Found existing patch {} {}",
+                        term::format::tertiary(term::format::cob(&id)),
+                        term::format::italic(&patch.title)
+                    ));
+                    spinner.finish();
+                    term::blank();
+
+                    Some((id, patch))
+                } else {
+                    spinner.failed();
+                    term::blank();
+                    anyhow::bail!("More than one patch available to update, please specify an id with `rad patch --update <id>`");
+                }
+            } else {
+                spinner.failed();
+                term::blank();
+                anyhow::bail!("No patches found that share a base, please create a new patch or specify the patch id manually");
+            }
+        }
+        Update::Patch(id) => {
+            if let Some(patch) = patches.get(id)? {
+                Some((*id, patch))
+            } else {
+                anyhow::bail!("Patch `{}` not found", id);
+            }
+        }
+    };
+
+    if let Some((id, patch)) = patch {
+        if term::confirm("Update?") {
+            term::blank();
+
+            return update(
+                patch, id, &base_oid, &head_oid, &patches, workdir, options, &signer,
+            );
+        } else {
+            anyhow::bail!("Patch update aborted by user");
+        }
+    }
+
+    // TODO: List matching working copy refs for all targets.
+
+    term::blank();
+    term::info!(
+        "{}/{} ({}) <- {}/{} ({})",
+        term::format::dim(target_peer.id),
+        term::format::highlight(&project.default_branch.to_string()),
+        term::format::secondary(&term::format::oid(*target_oid)),
+        term::format::dim(term::format::node(cobs.public_key())),
+        term::format::highlight(&head_branch.to_string()),
+        term::format::secondary(&term::format::oid(head_oid)),
+    );
+
+    // TODO: Test case where the target branch has been re-written passed the merge-base, since the fork was created
+    // This can also happen *after* the patch is created.
+
+    term::patch::print_commits_ahead_behind(workdir, head_oid, (*target_oid).into())?;
+
+    // List commits in patch that aren't in the target branch.
+    term::blank();
+    term::patch::list_commits(&commits)?;
+    term::blank();
+
+    if !term::confirm("Continue?") {
+        anyhow::bail!("patch proposal aborted by user");
+    }
+
+    let message = head_commit
+        .message()
+        .ok_or(anyhow!("commit summary is not valid UTF-8; aborting"))?;
+    let message = options.message.get(&format!("{}{}", message, PATCH_MSG));
+    let (title, description) = message.split_once("\n\n").unwrap_or((&message, ""));
+    let (title, description) = (title.trim(), description.trim());
+    let description = description.replace(PATCH_MSG.trim(), ""); // Delete help message.
+
+    if title.is_empty() {
+        anyhow::bail!("a title must be given");
+    }
+
+    let title_pretty = &term::format::dim(format!("╭─ {} ───────", title));
+
+    term::blank();
+    term::print(title_pretty);
+    term::blank();
+
+    if description.is_empty() {
+        term::print(term::format::italic("No description provided."));
+    } else {
+        term::markdown(&description);
+    }
+
+    term::blank();
+    term::print(&term::format::dim(format!(
+        "╰{}",
+        "─".repeat(term::text_width(title_pretty) - 1)
+    )));
+    term::blank();
+
+    if !term::confirm("Create patch?") {
+        anyhow::bail!("patch proposal aborted by user");
+    }
+
+    let id = patches.create(
+        title,
+        &description,
+        MergeTarget::default(),
+        base_oid,
+        head_oid,
+        &[],
+        &signer,
+    )?;
+
+    term::blank();
+    term::success!("Patch {} created 🌱", term::format::highlight(id));
+
+    if options.sync {
+        // TODO
+    }
+
+    Ok(())
+}
+
+/// Update an existing patch with a new revision.
+fn update<G: Signer>(
+    patch: Patch,
+    patch_id: PatchId,
+    base: &Oid,
+    head: &Oid,
+    patches: &PatchStore,
+    workdir: &git::raw::Repository,
+    options: Options,
+    signer: &G,
+) -> anyhow::Result<()> {
+    let (current, current_revision) = patch.latest();
+
+    if *current_revision.oid == *head {
+        term::info!("Nothing to do, patch is already up to date.");
+        return Ok(());
+    }
+
+    term::info!(
+        "{} {} ({}) -> {} ({})",
+        term::format::tertiary(term::format::cob(&patch_id)),
+        term::format::dim(format!("R{}", current)),
+        term::format::secondary(term::format::oid(current_revision.oid)),
+        term::format::dim(format!("R{}", current + 1)),
+        term::format::secondary(term::format::oid(*head)),
+    );
+    let message = options.message.get(REVISION_MSG);
+
+    // Difference between the two revisions.
+    term::patch::print_commits_ahead_behind(workdir, *head, *current_revision.oid)?;
+    term::blank();
+
+    if !term::confirm("Continue?") {
+        anyhow::bail!("patch update aborted by user");
+    }
+
+    let new = patches.update(&patch_id, message, *base, *head, signer)?;
+    assert_eq!(new, current + 1);
+
+    term::blank();
+    term::success!("Patch {} updated 🌱", term::format::highlight(patch_id));
+    term::blank();
+
+    if options.sync {
+        // TODO
+    }
+
+    Ok(())
+}
diff --git a/radicle-cli/src/commands/patch/list.rs b/radicle-cli/src/commands/patch/list.rs
new file mode 100644
index 00000000..a1866700
--- /dev/null
+++ b/radicle-cli/src/commands/patch/list.rs
@@ -0,0 +1,167 @@
+use radicle::cob;
+use radicle::cob::patch::{Patch, PatchId, Verdict};
+use radicle::git;
+use radicle::prelude::*;
+use radicle::profile::Profile;
+use radicle::storage::git::Repository;
+
+use crate::terminal as term;
+
+use super::common;
+use super::Options;
+
+/// List patches.
+pub fn run(
+    storage: &Repository,
+    profile: &Profile,
+    workdir: Option<git::raw::Repository>,
+    options: Options,
+) -> anyhow::Result<()> {
+    if options.sync {
+        // TODO: Sync
+    }
+
+    let me = *profile.id();
+    let cobs = cob::Store::open(*profile.id(), storage)?;
+    let patches = cobs.patches();
+    let proposed = patches.proposed()?;
+
+    // Patches the user authored.
+    let mut own = Vec::new();
+    // Patches other users authored.
+    let mut other = Vec::new();
+
+    for (id, patch) in proposed {
+        if *patch.author.id() == me {
+            own.push((id, patch));
+        } else {
+            other.push((id, patch));
+        }
+    }
+    term::blank();
+    term::print(&term::format::badge_positive("YOU PROPOSED"));
+
+    if own.is_empty() {
+        term::blank();
+        term::print(&term::format::italic("Nothing to show."));
+    } else {
+        for (id, patch) in &mut own {
+            term::blank();
+
+            print(&me, id, patch, &workdir, storage)?;
+        }
+    }
+    term::blank();
+    term::print(&term::format::badge_secondary("OTHERS PROPOSED"));
+
+    if other.is_empty() {
+        term::blank();
+        term::print(&term::format::italic("Nothing to show."));
+    } else {
+        for (id, patch) in &mut other {
+            term::blank();
+
+            print(cobs.public_key(), id, patch, &workdir, storage)?;
+        }
+    }
+    term::blank();
+
+    Ok(())
+}
+
+/// Print patch details.
+fn print(
+    whoami: &PublicKey,
+    patch_id: &PatchId,
+    patch: &Patch,
+    workdir: &Option<git::raw::Repository>,
+    storage: &Repository,
+) -> anyhow::Result<()> {
+    let target_head = common::patch_merge_target_oid(patch.target, storage)?;
+
+    let you = patch.author.id() == whoami;
+    let prefix = "└─ ";
+    let mut author_info = vec![format!(
+        "{}* opened by {}",
+        prefix,
+        term::format::tertiary(patch.author.id()),
+    )];
+
+    if you {
+        author_info.push(term::format::secondary("(you)"));
+    }
+    author_info.push(term::format::dim(term::format::timestamp(&patch.timestamp)));
+
+    let revision = patch.revisions.last();
+    term::info!(
+        "{} {} {} {} {}",
+        term::format::bold(&patch.title),
+        term::format::highlight(term::format::cob(patch_id)),
+        term::format::dim(format!("R{}", patch.version())),
+        common::pretty_commit_version(&revision.oid, workdir)?,
+        common::pretty_sync_status(storage.raw(), *revision.oid, target_head)?,
+    );
+    term::info!("{}", author_info.join(" "));
+
+    let mut timeline = Vec::new();
+    for merge in &revision.merges {
+        let peer = storage.remote(&merge.node)?;
+        let mut badges = Vec::new();
+
+        if peer.delegate {
+            badges.push(term::format::secondary("(delegate)"));
+        }
+        if peer.id == *whoami {
+            badges.push(term::format::secondary("(you)"));
+        }
+
+        timeline.push((
+            merge.timestamp,
+            format!(
+                "{}{} by {} {}",
+                " ".repeat(term::text_width(prefix)),
+                term::format::secondary(term::format::dim("✓ merged")),
+                term::format::tertiary(peer.id),
+                badges.join(" "),
+            ),
+        ));
+    }
+    for review in revision.reviews.values() {
+        let verdict = match review.verdict {
+            Some(Verdict::Accept) => term::format::positive(term::format::dim("✓ accepted")),
+            Some(Verdict::Reject) => term::format::negative(term::format::dim("✗ rejected")),
+            None => term::format::negative(term::format::dim("⋄ reviewed")),
+        };
+        let peer = storage.remote(review.author.id())?;
+        let mut badges = Vec::new();
+
+        if peer.delegate {
+            badges.push(term::format::secondary("(delegate)"));
+        }
+        if peer.id == *whoami {
+            badges.push(term::format::secondary("(you)"));
+        }
+
+        timeline.push((
+            review.timestamp,
+            format!(
+                "{}{} by {} {}",
+                " ".repeat(term::text_width(prefix)),
+                verdict,
+                term::format::tertiary(review.author.id()),
+                badges.join(" "),
+            ),
+        ));
+    }
+    timeline.sort_by_key(|(t, _)| *t);
+
+    for (time, event) in timeline.iter().rev() {
+        term::info!(
+            "{} {}",
+            event,
+            term::format::dim(term::format::timestamp(time))
+        );
+    }
+
+    Ok(())
+}
diff --git a/radicle-cli/src/lib.rs b/radicle-cli/src/lib.rs
index 400396ed..2b151c21 100644
--- a/radicle-cli/src/lib.rs
+++ b/radicle-cli/src/lib.rs
@@ -1,4 +1,6 @@
 #![allow(clippy::collapsible_if)]
+#![allow(clippy::or_fun_call)]
+#![allow(clippy::too_many_arguments)]
 pub mod commands;
 pub mod git;
 pub mod project;
diff --git a/radicle-cli/src/terminal/format.rs b/radicle-cli/src/terminal/format.rs
index 399dabe2..1b93c530 100644
--- a/radicle-cli/src/terminal/format.rs
+++ b/radicle-cli/src/terminal/format.rs
@@ -1,6 +1,7 @@
-use std::fmt;
+use std::{fmt, time};
 
 use dialoguer::console::style;
+use radicle::cob::Timestamp;
 use radicle::node::NodeId;
 use radicle::profile::Profile;
 use radicle_cob::ObjectId;
@@ -17,8 +18,8 @@ pub fn node(node: &NodeId) -> String {
 }
 
 /// Format a git Oid.
-pub fn oid(oid: &radicle::git::Oid) -> String {
-    format!("{:.7}", oid)
+pub fn oid(oid: impl Into<radicle::git::Oid>) -> String {
+    format!("{:.7}", oid.into())
 }
 
 /// Format a COB id.
@@ -26,6 +27,15 @@ pub fn cob(id: &ObjectId) -> String {
     format!("{:.11}", id.to_string())
 }
 
+/// Format a timestamp.
+pub fn timestamp(time: &Timestamp) -> String {
+    let fmt = timeago::Formatter::new();
+    let now = Timestamp::now();
+    let duration = time::Duration::from_secs(now.as_secs() - time.as_secs());
+
+    fmt.convert(duration)
+}
+
 /// Identity formatter that takes a profile and displays it as
 /// `<node-id> (<username>)` depending on the configuration.
 pub struct Identity<'a> {
diff --git a/radicle-cli/src/terminal/patch.rs b/radicle-cli/src/terminal/patch.rs
index b6453864..0be15282 100644
--- a/radicle-cli/src/terminal/patch.rs
+++ b/radicle-cli/src/terminal/patch.rs
@@ -56,7 +56,7 @@ pub fn list_commits(commits: &[git::raw::Commit]) -> anyhow::Result<()> {
             .summary_bytes()
             .unwrap_or_else(|| commit.message_bytes());
         table.push([
-            term::format::secondary(term::format::oid(&commit.id().into())),
+            term::format::secondary(term::format::oid(commit.id())),
             term::format::italic(String::from_utf8_lossy(message)),
         ]);
     }
diff --git a/radicle/src/cob.rs b/radicle/src/cob.rs
index 53227e60..1ede2f76 100644
--- a/radicle/src/cob.rs
+++ b/radicle/src/cob.rs
@@ -8,14 +8,15 @@ pub mod transaction;
 pub mod value;
 
 pub use cob::{
-    identity, object::collaboration::error, CollaborativeObject, Create, Entry, History, ObjectId,
-    TypeName, Update,
+    identity, object::collaboration::error, CollaborativeObject, Contents, Create, Entry, History,
+    ObjectId, TypeName, Update,
 };
+pub use shared::Timestamp;
+pub use store::Store;
+
 use radicle_cob as cob;
 use radicle_git_ext::Oid;
 
-pub use radicle_cob::*;
-
 use crate::{
     identity::{project::Identity, Did},
     node::NodeId,
diff --git a/radicle/src/cob/store.rs b/radicle/src/cob/store.rs
index 3800d5cf..40fd20ef 100644
--- a/radicle/src/cob/store.rs
+++ b/radicle/src/cob/store.rs
@@ -111,6 +111,11 @@ impl<'a, T> Store<'a, T> {
     pub fn author(&self) -> Author {
         Author::new(self.whoami)
     }
+
+    /// Get the public key associated with this store.
+    pub fn public_key(&self) -> &PublicKey {
+        &self.whoami
+    }
 }
 
 impl<'a, T: FromHistory> Store<'a, T> {
diff --git a/radicle/src/rad.rs b/radicle/src/rad.rs
index 8d8f67c4..3f3a91da 100644
--- a/radicle/src/rad.rs
+++ b/radicle/src/rad.rs
@@ -18,6 +18,7 @@ use crate::storage::refs::SignedRefs;
 use crate::storage::{BranchName, ReadRepository as _, RemoteId, WriteRepository as _};
 use crate::{identity, storage};
 
+/// Name of the radicle storage remote.
 pub static REMOTE_NAME: Lazy<git::RefString> = Lazy::new(|| git::refname!("rad"));
 
 /// Radicle remote name for peer, eg. `rad/<node-id>`
@@ -346,14 +347,15 @@ mod tests {
 
     use radicle_crypto::test::signer::MockSigner;
 
-    use super::*;
-    use crate::git::fmt::refname;
+    use crate::git::{name::component, qualified, Qualified};
     use crate::identity::{Delegate, Did};
     use crate::storage::git::transport;
     use crate::storage::git::Storage;
     use crate::storage::{ReadStorage, WriteStorage};
     use crate::test::fixtures;
 
+    use super::*;
+
     #[test]
     fn test_init() {
         let tempdir = tempfile::tempdir().unwrap();
@@ -387,6 +389,7 @@ mod tests {
         let (_, head) = project_repo.head().unwrap();
 
         // Test canonical refs.
+        assert_eq!(refs.head(&component!("master")).unwrap(), head);
         assert_eq!(project_repo.raw().refname_to_id("HEAD").unwrap(), *head);
         assert_eq!(
             project_repo
@@ -439,8 +442,11 @@ mod tests {
         let bob_remote = storage.repository(id).unwrap().remote(bob_id).unwrap();
 
         assert_eq!(
-            bob_remote.refs.get(&refname!("master")),
-            alice_refs.get(&refname!("master"))
+            bob_remote
+                .refs
+                .get(&qualified!("refs/heads/master"))
+                .unwrap(),
+            alice_refs.get(&qualified!("refs/heads/master")).unwrap()
         );
     }
 
diff --git a/radicle/src/storage.rs b/radicle/src/storage.rs
index b90d58af..059af5a9 100644
--- a/radicle/src/storage.rs
+++ b/radicle/src/storage.rs
@@ -185,7 +185,7 @@ impl<V> From<Remotes<V>> for HashMap<RemoteId, Refs> {
 
 /// A project remote.
 #[derive(Debug, Clone, PartialEq, Eq)]
-pub struct Remote<V> {
+pub struct Remote<V = Verified> {
     /// ID of remote.
     pub id: PublicKey,
     /// Git references published under this remote, and their hashes.
diff --git a/radicle/src/storage/refs.rs b/radicle/src/storage/refs.rs
index a2676a47..ee5aa54b 100644
--- a/radicle/src/storage/refs.rs
+++ b/radicle/src/storage/refs.rs
@@ -101,6 +101,17 @@ impl Refs {
         })
     }
 
+    /// Get a particular ref.
+    pub fn get(&self, name: &git::Qualified) -> Option<Oid> {
+        self.0.get(name.to_ref_string().as_refstr()).copied()
+    }
+
+    /// Get a particular head ref.
+    pub fn head(&self, name: impl AsRef<git::RefStr>) -> Option<Oid> {
+        let branch = git::refname!("refs/heads").join(name);
+        self.0.get(&branch).copied()
+    }
+
     /// Create refs from a canonical representation.
     pub fn from_canonical(bytes: &[u8]) -> Result<Self, canonical::Error> {
         let reader = BufReader::new(bytes);