drawbridge_client/
tag.rs

1// SPDX-FileCopyrightText: 2022 Profian Inc. <opensource@profian.com>
2// SPDX-License-Identifier: Apache-2.0
3
4use super::{scope, Entity, Node, Result, Scope};
5
6use std::collections::BTreeMap;
7use std::io::Seek;
8use std::ops::Deref;
9use std::path::Path;
10
11use drawbridge_jose::jws::Jws;
12use drawbridge_jose::MediaTyped;
13use drawbridge_type::TreeContent::{Directory, File};
14use drawbridge_type::{TagEntry, TagName, Tree, TreeEntry, TreePath};
15
16use anyhow::Context;
17use ureq::serde::Serialize;
18
19#[derive(Clone, Debug)]
20pub struct Tag<'a, S: Scope>(Entity<'a, S, scope::Tag>);
21
22impl<'a, S: Scope> Deref for Tag<'a, S> {
23    type Target = Entity<'a, S, scope::Tag>;
24
25    fn deref(&self) -> &Self::Target {
26        &self.0
27    }
28}
29
30impl<'a, S: Scope> Tag<'a, S> {
31    pub fn new(entity: Entity<'a, S, scope::Repository>, name: &TagName) -> Self {
32        Tag(entity.child(&name.to_string()))
33    }
34
35    pub fn create(&self, entry: &TagEntry<impl Serialize>) -> Result<bool> {
36        let mime = match entry {
37            TagEntry::Unsigned(..) => TreeEntry::<()>::TYPE,
38            TagEntry::Signed(..) => Jws::TYPE,
39        }
40        .parse()
41        .expect("failed to parse tag entry media type");
42        self.0.create_json(&mime, entry)
43    }
44
45    // TODO: Support signed tags
46    pub fn create_from_path_unsigned(
47        &self,
48        path: impl AsRef<Path>,
49    ) -> Result<(bool, BTreeMap<TreePath, bool>)> {
50        let tree = Tree::from_path_sync(path)?;
51        let tag_created = self.create(&TagEntry::Unsigned(tree.root()))?;
52        let tree_created = tree
53            .into_iter()
54            .map(|(path, TreeEntry { meta, content, .. })| {
55                let node = Node::new(self.child("tree"), &path);
56                let created = match content {
57                    File(mut file) => {
58                        file.rewind().context("failed to rewind file")?;
59                        node.create_from(&meta, file)?
60                    }
61                    Directory(buf) => node.create_from(&meta, buf.as_slice())?,
62                };
63                Ok((path, created))
64            })
65            .collect::<Result<_>>()?;
66        Ok((tag_created, tree_created))
67    }
68
69    pub fn get(&self) -> Result<TagEntry> {
70        // TODO: Validate MIME type
71        // TODO: Use a reasonable byte limit
72        self.0.get_json(u64::MAX).map(|(_, v)| v)
73    }
74
75    pub fn path(&self, path: &TreePath) -> Node<'a, S> {
76        Node::new(self.child("tree"), path)
77    }
78}
drawbridge_client/tag.rs

drawbridge_client/
tag.rs
