ZIm/crates/workspace/src/persistence.rs
Kay Simmons d20d21c6a2 Dock persistence working!
Co-Authored-By: Mikayla Maki <mikayla@zed.dev>
2022-12-03 16:06:01 -08:00

569 lines
20 KiB
Rust

#![allow(dead_code)]
pub mod model;
use std::path::{Path, PathBuf};
use std::sync::Arc;
use anyhow::{anyhow, bail, Result, Context};
use db::connection;
use gpui::Axis;
use indoc::indoc;
use lazy_static::lazy_static;
use sqlez::domain::Domain;
use util::{iife, unzip_option, ResultExt};
use crate::dock::DockPosition;
use super::Workspace;
use model::{
GroupId, PaneId, SerializedItem, SerializedPane, SerializedPaneGroup,
SerializedWorkspace, WorkspaceId,
};
connection!(DB: WorkspaceDb<Workspace>);
impl Domain for Workspace {
fn name() -> &'static str {
"workspace"
}
fn migrations() -> &'static [&'static str] {
&[indoc! {"
CREATE TABLE workspaces(
workspace_id BLOB PRIMARY KEY,
dock_visible INTEGER, -- Boolean
dock_anchor TEXT, -- Enum: 'Bottom' / 'Right' / 'Expanded'
timestamp TEXT DEFAULT CURRENT_TIMESTAMP NOT NULL
) STRICT;
CREATE TABLE pane_groups(
group_id INTEGER PRIMARY KEY,
workspace_id BLOB NOT NULL,
parent_group_id INTEGER, -- NULL indicates that this is a root node
position INTEGER, -- NULL indicates that this is a root node
axis TEXT NOT NULL, -- Enum: 'Vertical' / 'Horizontal'
FOREIGN KEY(workspace_id) REFERENCES workspaces(workspace_id)
ON DELETE CASCADE
ON UPDATE CASCADE,
FOREIGN KEY(parent_group_id) REFERENCES pane_groups(group_id) ON DELETE CASCADE
) STRICT;
CREATE TABLE panes(
pane_id INTEGER PRIMARY KEY,
workspace_id BLOB NOT NULL,
parent_group_id INTEGER, -- NULL, this is a dock pane
position INTEGER, -- NULL, this is a dock pane
FOREIGN KEY(workspace_id) REFERENCES workspaces(workspace_id)
ON DELETE CASCADE
ON UPDATE CASCADE,
FOREIGN KEY(parent_group_id) REFERENCES pane_groups(group_id) ON DELETE CASCADE
) STRICT;
CREATE TABLE items(
item_id INTEGER NOT NULL, -- This is the item's view id, so this is not unique
workspace_id BLOB NOT NULL,
pane_id INTEGER NOT NULL,
kind TEXT NOT NULL,
position INTEGER NOT NULL,
FOREIGN KEY(workspace_id) REFERENCES workspaces(workspace_id)
ON DELETE CASCADE
ON UPDATE CASCADE,
FOREIGN KEY(pane_id) REFERENCES panes(pane_id)
ON DELETE CASCADE,
PRIMARY KEY(item_id, workspace_id)
) STRICT;
"}]
}
}
impl WorkspaceDb {
/// Returns a serialized workspace for the given worktree_roots. If the passed array
/// is empty, the most recent workspace is returned instead. If no workspace for the
/// passed roots is stored, returns none.
pub fn workspace_for_roots<P: AsRef<Path>>(
&self,
worktree_roots: &[P],
) -> Option<SerializedWorkspace> {
let workspace_id: WorkspaceId = worktree_roots.into();
// Note that we re-assign the workspace_id here in case it's empty
// and we've grabbed the most recent workspace
let (workspace_id, dock_position): (WorkspaceId, DockPosition) = iife!({
if worktree_roots.len() == 0 {
self.select_row(indoc! {"
SELECT workspace_id, dock_visible, dock_anchor
FROM workspaces
ORDER BY timestamp DESC LIMIT 1"})?()?
} else {
self.select_row_bound(indoc! {"
SELECT workspace_id, dock_visible, dock_anchor
FROM workspaces
WHERE workspace_id = ?"})?(&workspace_id)?
}
.context("No workspaces found")
})
.warn_on_err()
.flatten()?;
Some(SerializedWorkspace {
workspace_id: workspace_id.clone(),
dock_pane: self
.get_dock_pane(&workspace_id)
.context("Getting dock pane")
.log_err()?,
center_group: self
.get_center_pane_group(&workspace_id)
.context("Getting center group")
.log_err()?,
dock_position,
})
}
/// Saves a workspace using the worktree roots. Will garbage collect any workspaces
/// that used this workspace previously
pub fn save_workspace(
&self,
old_id: Option<WorkspaceId>,
workspace: &SerializedWorkspace,
) {
self.with_savepoint("update_worktrees", || {
if let Some(old_id) = old_id {
self.exec_bound(indoc! {"
DELETE FROM pane_groups WHERE workspace_id = ?"})?(&old_id)?;
// If collision, delete
self.exec_bound(indoc! {"
UPDATE OR REPLACE workspaces
SET workspace_id = ?,
dock_visible = ?,
dock_anchor = ?,
timestamp = CURRENT_TIMESTAMP
WHERE workspace_id = ?"})?((
&workspace.workspace_id,
workspace.dock_position,
&old_id,
))?;
} else {
self.exec_bound(indoc! {"
DELETE FROM pane_groups WHERE workspace_id = ?"})?(&workspace.workspace_id)?;
self.exec_bound(
"INSERT OR REPLACE INTO workspaces(workspace_id, dock_visible, dock_anchor) VALUES (?, ?, ?)",
)?((&workspace.workspace_id, workspace.dock_position))?;
}
// Save center pane group and dock pane
self.save_pane_group(&workspace.workspace_id, &workspace.center_group, None)?;
self.save_pane(&workspace.workspace_id, &workspace.dock_pane, None)?;
Ok(())
})
.with_context(|| {
format!(
"Update workspace with roots {:?}",
workspace.workspace_id.paths()
)
})
.log_err();
}
/// Returns the previous workspace ids sorted by last modified along with their opened worktree roots
pub fn recent_workspaces(&self, limit: usize) -> Vec<Arc<Vec<PathBuf>>> {
iife!({
// TODO, upgrade anyhow: https://docs.rs/anyhow/1.0.66/anyhow/fn.Ok.html
Ok::<_, anyhow::Error>(
self.select_bound::<usize, WorkspaceId>(
"SELECT workspace_id FROM workspaces ORDER BY timestamp DESC LIMIT ?",
)?(limit)?
.into_iter()
.map(|id| id.paths())
.collect::<Vec<Arc<Vec<PathBuf>>>>(),
)
})
.log_err()
.unwrap_or_default()
}
pub(crate) fn get_center_pane_group(
&self,
workspace_id: &WorkspaceId,
) -> Result<SerializedPaneGroup> {
self.get_pane_group_children(workspace_id, None)?
.into_iter()
.next()
.context("No center pane group")
}
fn get_pane_group_children<'a>(
&self,
workspace_id: &WorkspaceId,
group_id: Option<GroupId>,
) -> Result<Vec<SerializedPaneGroup>> {
self.select_bound::<(Option<GroupId>, &WorkspaceId), (Option<GroupId>, Option<Axis>, Option<PaneId>)>(indoc! {"
SELECT group_id, axis, pane_id
FROM (SELECT group_id, axis, NULL as pane_id, position, parent_group_id, workspace_id
FROM pane_groups
UNION
SELECT NULL, NULL, pane_id, position, parent_group_id, workspace_id
FROM panes
-- Remove the dock panes from the union
WHERE parent_group_id IS NOT NULL and position IS NOT NULL)
WHERE parent_group_id IS ? AND workspace_id = ?
ORDER BY position
"})?((group_id, workspace_id))?
.into_iter()
.map(|(group_id, axis, pane_id)| {
if let Some((group_id, axis)) = group_id.zip(axis) {
Ok(SerializedPaneGroup::Group {
axis,
children: self.get_pane_group_children(
workspace_id,
Some(group_id),
)?,
})
} else if let Some(pane_id) = pane_id {
Ok(SerializedPaneGroup::Pane(SerializedPane {
children: self.get_items( pane_id)?,
}))
} else {
bail!("Pane Group Child was neither a pane group or a pane");
}
})
.collect::<Result<_>>()
}
pub(crate) fn save_pane_group(
&self,
workspace_id: &WorkspaceId,
pane_group: &SerializedPaneGroup,
parent: Option<(GroupId, usize)>,
) -> Result<()> {
if parent.is_none() && !matches!(pane_group, SerializedPaneGroup::Group { .. }) {
bail!("Pane groups must have a SerializedPaneGroup::Group at the root")
}
match pane_group {
SerializedPaneGroup::Group { axis, children } => {
let (parent_id, position) = unzip_option(parent);
let group_id = self.select_row_bound::<_, i64>(indoc!{"
INSERT INTO pane_groups(workspace_id, parent_group_id, position, axis)
VALUES (?, ?, ?, ?)
RETURNING group_id"})?
((workspace_id, parent_id, position, *axis))?
.ok_or_else(|| anyhow!("Couldn't retrieve group_id from inserted pane_group"))?;
for (position, group) in children.iter().enumerate() {
self.save_pane_group(workspace_id, group, Some((group_id, position)))?
}
Ok(())
}
SerializedPaneGroup::Pane(pane) => self.save_pane(workspace_id, pane, parent),
}
}
pub(crate) fn get_dock_pane(&self, workspace_id: &WorkspaceId) -> Result<SerializedPane> {
let pane_id = self.select_row_bound(indoc! {"
SELECT pane_id FROM panes
WHERE workspace_id = ? AND parent_group_id IS NULL AND position IS NULL"})?(
workspace_id,
)?
.context("No dock pane for workspace")?;
Ok(SerializedPane::new(
self.get_items(pane_id).context("Reading items")?,
))
}
pub(crate) fn save_pane(
&self,
workspace_id: &WorkspaceId,
pane: &SerializedPane,
parent: Option<(GroupId, usize)>,
) -> Result<()> {
let (parent_id, order) = unzip_option(parent);
let pane_id = self.select_row_bound::<_, i64>(indoc!{"
INSERT INTO panes(workspace_id, parent_group_id, position)
VALUES (?, ?, ?)
RETURNING pane_id"},
)?((workspace_id, parent_id, order))?
.ok_or_else(|| anyhow!("Could not retrieve inserted pane_id"))?;
self.save_items(workspace_id, pane_id, &pane.children)
.context("Saving items")
}
pub(crate) fn get_items(&self, pane_id: PaneId) -> Result<Vec<SerializedItem>> {
Ok(self.select_bound(indoc! {"
SELECT kind, item_id FROM items
WHERE pane_id = ?
ORDER BY position"})?(pane_id)?)
}
pub(crate) fn save_items(
&self,
workspace_id: &WorkspaceId,
pane_id: PaneId,
items: &[SerializedItem],
) -> Result<()> {
let mut insert = self.exec_bound(
"INSERT INTO items(workspace_id, pane_id, position, kind, item_id) VALUES (?, ?, ?, ?, ?)",
).context("Preparing insertion")?;
for (position, item) in items.iter().enumerate() {
insert((workspace_id, pane_id, position, item))?;
}
Ok(())
}
}
#[cfg(test)]
mod tests {
use db::open_memory_db;
use settings::DockAnchor;
use super::*;
#[test]
fn test_full_workspace_serialization() {
env_logger::try_init().ok();
let db = WorkspaceDb(open_memory_db("test_full_workspace_serialization"));
let dock_pane = crate::persistence::model::SerializedPane {
children: vec![
SerializedItem::new("Terminal", 1),
SerializedItem::new("Terminal", 2),
SerializedItem::new("Terminal", 3),
SerializedItem::new("Terminal", 4),
],
};
// -----------------
// | 1,2 | 5,6 |
// | - - - | |
// | 3,4 | |
// -----------------
let center_group = SerializedPaneGroup::Group {
axis: gpui::Axis::Horizontal,
children: vec![
SerializedPaneGroup::Group {
axis: gpui::Axis::Vertical,
children: vec![
SerializedPaneGroup::Pane(SerializedPane {
children: vec![
SerializedItem::new("Terminal", 5),
SerializedItem::new("Terminal", 6),
],
}),
SerializedPaneGroup::Pane(SerializedPane {
children: vec![
SerializedItem::new("Terminal", 7),
SerializedItem::new("Terminal", 8),
],
}),
],
},
SerializedPaneGroup::Pane(SerializedPane {
children: vec![
SerializedItem::new("Terminal", 9),
SerializedItem::new("Terminal", 10),
],
}),
],
};
let workspace = SerializedWorkspace {
workspace_id: (["/tmp", "/tmp2"]).into(),
dock_position: DockPosition::Shown(DockAnchor::Bottom),
center_group,
dock_pane,
};
db.save_workspace(None, &workspace);
let round_trip_workspace = db.workspace_for_roots(&["/tmp2", "/tmp"]);
assert_eq!(workspace, round_trip_workspace.unwrap());
// Test guaranteed duplicate IDs
db.save_workspace(None, &workspace);
db.save_workspace(None, &workspace);
let round_trip_workspace = db.workspace_for_roots(&["/tmp", "/tmp2"]);
assert_eq!(workspace, round_trip_workspace.unwrap());
}
#[test]
fn test_workspace_assignment() {
env_logger::try_init().ok();
let db = WorkspaceDb(open_memory_db("test_basic_functionality"));
let workspace_1 = SerializedWorkspace {
workspace_id: (["/tmp", "/tmp2"]).into(),
dock_position: crate::dock::DockPosition::Shown(DockAnchor::Bottom),
center_group: Default::default(),
dock_pane: Default::default(),
};
let mut workspace_2 = SerializedWorkspace {
workspace_id: (["/tmp"]).into(),
dock_position: crate::dock::DockPosition::Hidden(DockAnchor::Expanded),
center_group: Default::default(),
dock_pane: Default::default(),
};
db.save_workspace(None, &workspace_1);
db.save_workspace(None, &workspace_2);
// Test that paths are treated as a set
assert_eq!(
db.workspace_for_roots(&["/tmp", "/tmp2"]).unwrap(),
workspace_1
);
assert_eq!(
db.workspace_for_roots(&["/tmp2", "/tmp"]).unwrap(),
workspace_1
);
// Make sure that other keys work
assert_eq!(db.workspace_for_roots(&["/tmp"]).unwrap(), workspace_2);
assert_eq!(db.workspace_for_roots(&["/tmp3", "/tmp2", "/tmp4"]), None);
// Test 'mutate' case of updating a pre-existing id
workspace_2.workspace_id = (["/tmp", "/tmp2"]).into();
db.save_workspace(Some((&["/tmp"]).into()), &workspace_2);
assert_eq!(
db.workspace_for_roots(&["/tmp", "/tmp2"]).unwrap(),
workspace_2
);
// Test other mechanism for mutating
let mut workspace_3 = SerializedWorkspace {
workspace_id: (&["/tmp", "/tmp2"]).into(),
dock_position: DockPosition::Shown(DockAnchor::Right),
center_group: Default::default(),
dock_pane: Default::default(),
};
db.save_workspace(None, &workspace_3);
assert_eq!(
db.workspace_for_roots(&["/tmp", "/tmp2"]).unwrap(),
workspace_3
);
// Make sure that updating paths differently also works
workspace_3.workspace_id = (["/tmp3", "/tmp4", "/tmp2"]).into();
db.save_workspace(
Some((&["/tmp", "/tmp2"]).into()),
&workspace_3,
);
assert_eq!(db.workspace_for_roots(&["/tmp2", "tmp"]), None);
assert_eq!(
db.workspace_for_roots(&["/tmp2", "/tmp3", "/tmp4"])
.unwrap(),
workspace_3
);
}
use crate::dock::DockPosition;
use crate::persistence::model::SerializedWorkspace;
use crate::persistence::model::{SerializedItem, SerializedPane, SerializedPaneGroup};
fn default_workspace<P: AsRef<Path>>(
workspace_id: &[P],
dock_pane: SerializedPane,
center_group: &SerializedPaneGroup,
) -> SerializedWorkspace {
SerializedWorkspace {
workspace_id: workspace_id.into(),
dock_position: crate::dock::DockPosition::Hidden(DockAnchor::Right),
center_group: center_group.clone(),
dock_pane,
}
}
#[test]
fn test_basic_dock_pane() {
env_logger::try_init().ok();
let db = WorkspaceDb(open_memory_db("basic_dock_pane"));
let dock_pane = crate::persistence::model::SerializedPane {
children: vec![
SerializedItem::new("Terminal", 1),
SerializedItem::new("Terminal", 4),
SerializedItem::new("Terminal", 2),
SerializedItem::new("Terminal", 3),
],
};
let workspace = default_workspace(&["/tmp"], dock_pane, &Default::default());
db.save_workspace(None, &workspace);
let new_workspace = db.workspace_for_roots(&["/tmp"]).unwrap();
assert_eq!(workspace.dock_pane, new_workspace.dock_pane);
}
#[test]
fn test_simple_split() {
// env_logger::try_init().ok();
let db = WorkspaceDb(open_memory_db("simple_split"));
// -----------------
// | 1,2 | 5,6 |
// | - - - | |
// | 3,4 | |
// -----------------
let center_pane = SerializedPaneGroup::Group {
axis: gpui::Axis::Horizontal,
children: vec![
SerializedPaneGroup::Group {
axis: gpui::Axis::Vertical,
children: vec![
SerializedPaneGroup::Pane(SerializedPane {
children: vec![
SerializedItem::new("Terminal", 1),
SerializedItem::new("Terminal", 2),
],
}),
SerializedPaneGroup::Pane(SerializedPane {
children: vec![
SerializedItem::new("Terminal", 4),
SerializedItem::new("Terminal", 3),
],
}),
],
},
SerializedPaneGroup::Pane(SerializedPane {
children: vec![
SerializedItem::new("Terminal", 5),
SerializedItem::new("Terminal", 6),
],
}),
],
};
let workspace = default_workspace(&["/tmp"], Default::default(), &center_pane);
db.save_workspace(None, &workspace);
assert_eq!(workspace.center_group, center_pane);
}
}