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620 lines
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</pre><pre class="rust"><code><span class="comment">/*
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||
* Copyright (C) 2022 Aravinth Manivannan <realaravinth@batsense.net>
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||
*
|
||
* This program is free software: you can redistribute it and/or modify
|
||
* it under the terms of the GNU Affero General Public License as
|
||
* published by the Free Software Foundation, either version 3 of the
|
||
* License, or (at your option) any later version.
|
||
*
|
||
* This program is distributed in the hope that it will be useful,
|
||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
* GNU Affero General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Affero General Public License
|
||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||
*/
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</span><span class="kw">use </span>std::path::Path;
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<span class="kw">use </span>std::path::PathBuf;
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||
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<span class="kw">use </span>git2::<span class="kw-2">*</span>;
|
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<span class="kw">use </span>mime_guess::MimeGuess;
|
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<span class="kw">use </span>num_enum::FromPrimitive;
|
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<span class="kw">use </span>serde::{Deserialize, Serialize};
|
||
|
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<span class="kw">use </span><span class="kw">crate</span>::errors::<span class="kw-2">*</span>;
|
||
|
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<span class="doccomment">/// A FileMode represents the kind of tree entries used by git. It
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/// resembles regular file systems modes, although FileModes are
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/// considerably simpler (there are not so many), and there are some,
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/// like Submodule that has no file system equivalent.
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</span><span class="comment">// Adapted from https://github.com/go-git/go-git/blob/master/plumbing/filemode/filemode.go(Apache-2.0 License)
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</span><span class="attribute">#[derive(Debug, PartialEq, Eq, Clone, FromPrimitive)]
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#[repr(isize)]
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</span><span class="kw">pub enum </span>GitFileMode {
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<span class="doccomment">/// Empty is used as the GitFileMode of tree elements when comparing
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/// trees in the following situations:
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||
///
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/// - the mode of tree elements before their creation.
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/// - the mode of tree elements after their deletion.
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/// - the mode of unmerged elements when checking the index.
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///
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/// Empty has no file system equivalent. As Empty is the zero value
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/// of [GitFileMode]
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</span>Empty = <span class="number">0</span>,
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<span class="doccomment">/// Regular represent non-executable files.
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</span>Regular = <span class="number">0o100644</span>,
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<span class="doccomment">/// Dir represent a Directory.
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</span>Dir = <span class="number">0o40000</span>,
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<span class="doccomment">/// Deprecated represent non-executable files with the group writable bit set. This mode was
|
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/// supported by the first versions of git, but it has been deprecated nowadays. This
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/// library(github.com/go-git/go-git uses it, not realaravinth/gitpad at the moment) uses them
|
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/// internally, so you can read old packfiles, but will treat them as Regulars when interfacing
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/// with the outside world. This is the standard git behaviour.
|
||
</span>Deprecated = <span class="number">0o100664</span>,
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<span class="doccomment">/// Executable represents executable files.
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</span>Executable = <span class="number">0o100755</span>,
|
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<span class="doccomment">/// Symlink represents symbolic links to files.
|
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</span>Symlink = <span class="number">0o120000</span>,
|
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<span class="doccomment">/// Submodule represents git submodules. This mode has no file system
|
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/// equivalent.
|
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</span>Submodule = <span class="number">0o160000</span>,
|
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|
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<span class="doccomment">/// Unsupported file mode
|
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</span><span class="attribute">#[num_enum(default)]
|
||
</span>Unsupported = -<span class="number">1</span>,
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}
|
||
|
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<span class="kw">impl </span>From<<span class="kw-2">&</span><span class="lifetime">'_ </span>TreeEntry<<span class="lifetime">'_</span>>> <span class="kw">for </span>GitFileMode {
|
||
<span class="kw">fn </span>from(t: <span class="kw-2">&</span>TreeEntry) -> <span class="self">Self </span>{
|
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GitFileMode::from(t.filemode() <span class="kw">as </span>isize)
|
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}
|
||
}
|
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|
||
<span class="kw">impl </span>From<TreeEntry<<span class="lifetime">'_</span>>> <span class="kw">for </span>GitFileMode {
|
||
<span class="kw">fn </span>from(t: TreeEntry) -> <span class="self">Self </span>{
|
||
GitFileMode::from(t.filemode() <span class="kw">as </span>isize)
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[derive(Debug, Clone, Eq, PartialEq)]
|
||
</span><span class="kw">pub struct </span>FileInfo {
|
||
<span class="kw">pub </span>filename: String,
|
||
<span class="kw">pub </span>content: ContentType,
|
||
<span class="kw">pub </span>mime: MimeGuess,
|
||
}
|
||
|
||
<span class="attribute">#[derive(Serialize, Eq, PartialEq, Clone, Debug, Deserialize)]
|
||
#[serde(rename_all = <span class="string">"lowercase"</span>)]
|
||
</span><span class="kw">pub enum </span>ContentType {
|
||
Binary(Vec<u8>),
|
||
Text(String),
|
||
}
|
||
|
||
<span class="kw">impl </span>ContentType {
|
||
<span class="kw">pub fn </span>bytes(<span class="self">self</span>) -> Vec<u8> {
|
||
<span class="kw">match </span><span class="self">self </span>{
|
||
<span class="self">Self</span>::Text(text) => text.into(),
|
||
<span class="self">Self</span>::Binary(bin) => bin,
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub fn </span>from_blob(blob: <span class="kw-2">&</span>git2::Blob) -> <span class="self">Self </span>{
|
||
<span class="kw">if </span>blob.is_binary() {
|
||
<span class="self">Self</span>::Binary(blob.content().to_vec())
|
||
} <span class="kw">else </span>{
|
||
<span class="self">Self</span>::Text(String::from_utf8_lossy(blob.content()).to_string())
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="doccomment">/// Please note that this method expects path to not contain any spaces
|
||
/// Use [escape_spaces] before calling this method
|
||
///
|
||
/// For example, a read request for "foo bar.md" will fail even if that file is present
|
||
/// in the repository. However, it will succeed if the output of [escape_spaces] is
|
||
/// used in the request.
|
||
</span><span class="kw">pub fn </span>read_file(repo_path: <span class="kw-2">&</span>PathBuf, path: <span class="kw-2">&</span>str) -> ServiceResult<FileInfo> {
|
||
<span class="kw">let </span>repo = git2::Repository::open(repo_path).unwrap();
|
||
<span class="kw">let </span>head = repo.head().unwrap();
|
||
<span class="kw">let </span>tree = head.peel_to_tree().unwrap();
|
||
read_file_inner(<span class="kw-2">&</span>repo, path, <span class="kw-2">&</span>tree)
|
||
}
|
||
|
||
<span class="kw">pub fn </span>read_preview_file(
|
||
repo_path: <span class="kw-2">&</span>PathBuf,
|
||
preview_name: <span class="kw-2">&</span>str,
|
||
path: <span class="kw-2">&</span>str,
|
||
) -> ServiceResult<FileInfo> {
|
||
<span class="kw">let </span>repo = git2::Repository::open(repo_path).unwrap();
|
||
<span class="kw">let </span>branch = repo
|
||
.find_branch(preview_name, git2::BranchType::Local)
|
||
.unwrap();
|
||
<span class="comment">// let tree = head.peel_to_tree().unwrap();
|
||
</span><span class="kw">let </span>branch = branch.into_reference();
|
||
<span class="kw">let </span>tree = branch.peel_to_tree().unwrap();
|
||
read_file_inner(<span class="kw-2">&</span>repo, path, <span class="kw-2">&</span>tree)
|
||
}
|
||
|
||
<span class="kw">fn </span>read_file_inner(
|
||
repo: <span class="kw-2">&</span>git2::Repository,
|
||
path: <span class="kw-2">&</span>str,
|
||
tree: <span class="kw-2">&</span>git2::Tree,
|
||
) -> ServiceResult<FileInfo> {
|
||
<span class="kw">fn </span>read_file(id: Oid, repo: <span class="kw-2">&</span>git2::Repository) -> ContentType {
|
||
<span class="kw">let </span>blob = repo.find_blob(id).unwrap();
|
||
ContentType::from_blob(<span class="kw-2">&</span>blob)
|
||
}
|
||
|
||
<span class="kw">fn </span>get_index_file(id: Oid, repo: <span class="kw-2">&</span>Repository) -> ContentType {
|
||
<span class="kw">let </span>tree = repo.find_tree(id).unwrap();
|
||
<span class="kw">const </span>INDEX_FILES: [<span class="kw-2">&</span>str; <span class="number">7</span>] = [
|
||
<span class="string">"index.html"</span>,
|
||
<span class="string">"index.md"</span>,
|
||
<span class="string">"INDEX.md"</span>,
|
||
<span class="string">"README.md"</span>,
|
||
<span class="string">"README"</span>,
|
||
<span class="string">"readme.txt"</span>,
|
||
<span class="string">"readme"</span>,
|
||
];
|
||
|
||
<span class="kw">let </span>content = <span class="kw">if let </span><span class="prelude-val">Some</span>(index_file) = tree.iter().find(|x| {
|
||
<span class="kw">if let </span><span class="prelude-val">Some</span>(name) = x.name() {
|
||
INDEX_FILES.iter().any(|index_name| <span class="kw-2">*</span>index_name == name)
|
||
} <span class="kw">else </span>{
|
||
<span class="bool-val">false
|
||
</span>}
|
||
}) {
|
||
read_file(index_file.id(), repo)
|
||
} <span class="kw">else </span>{
|
||
<span class="macro">unimplemented!</span>(<span class="string">"Index file not found"</span>);
|
||
};
|
||
content
|
||
}
|
||
|
||
<span class="kw">let </span>inner = |repo: <span class="kw-2">&</span>git2::Repository, tree: <span class="kw-2">&</span>git2::Tree| -> ServiceResult<FileInfo> {
|
||
<span class="kw">let </span><span class="kw-2">mut </span>path = path;
|
||
<span class="kw">if </span>path == <span class="string">"/" </span>{
|
||
<span class="kw">let </span>content = get_index_file(tree.id(), repo);
|
||
<span class="kw">return </span><span class="prelude-val">Ok</span>(FileInfo {
|
||
filename: <span class="string">"/"</span>.into(),
|
||
content,
|
||
mime: mime_guess::from_path(<span class="string">"index.html"</span>),
|
||
});
|
||
}
|
||
<span class="kw">if </span>path.starts_with(<span class="string">'/'</span>) {
|
||
path = path.trim_start_matches(<span class="string">'/'</span>);
|
||
}
|
||
|
||
<span class="kw">fn </span>file_not_found(e: git2::Error) -> ServiceError {
|
||
<span class="kw">if </span>e.code() == ErrorCode::NotFound && e.class() == ErrorClass::Tree {
|
||
<span class="kw">return </span>ServiceError::FileNotFound;
|
||
}
|
||
e.into()
|
||
}
|
||
<span class="kw">let </span>entry = tree.get_path(Path::new(path)).map_err(file_not_found)<span class="question-mark">?</span>;
|
||
|
||
<span class="kw">let </span>mode: GitFileMode = entry.clone().into();
|
||
<span class="kw">if let </span><span class="prelude-val">Some</span>(name) = entry.name() {
|
||
<span class="kw">let </span>file = <span class="kw">match </span>mode {
|
||
GitFileMode::Dir => get_index_file(entry.id(), repo),
|
||
GitFileMode::Submodule => <span class="macro">unimplemented!</span>(),
|
||
GitFileMode::Empty => <span class="macro">unimplemented!</span>(),
|
||
GitFileMode::Deprecated => <span class="macro">unimplemented!</span>(),
|
||
GitFileMode::Unsupported => <span class="macro">unimplemented!</span>(),
|
||
GitFileMode::Symlink => <span class="macro">unimplemented!</span>(),
|
||
GitFileMode::Executable => read_file(entry.id(), repo),
|
||
GitFileMode::Regular => read_file(entry.id(), repo),
|
||
};
|
||
<span class="prelude-val">Ok</span>(FileInfo {
|
||
filename: name.to_string(),
|
||
mime: mime_guess::from_path(path),
|
||
content: file,
|
||
})
|
||
} <span class="kw">else </span>{
|
||
<span class="macro">unimplemented!</span>();
|
||
}
|
||
};
|
||
|
||
inner(repo, tree)
|
||
}
|
||
|
||
<span class="attribute">#[cfg(test)]
|
||
</span><span class="kw">pub mod </span>tests {
|
||
<span class="kw">use super</span>::<span class="kw-2">*</span>;
|
||
<span class="kw">use </span>mktemp::Temp;
|
||
|
||
<span class="kw">const </span>FILE_CONTENT: <span class="kw-2">&</span>str = <span class="string">"foobar"</span>;
|
||
|
||
<span class="kw">pub fn </span>write_file_util(repo_path: <span class="kw-2">&</span>str, file_name: <span class="kw-2">&</span>str, content: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>str>) {
|
||
<span class="comment">// TODO change updated in DB
|
||
</span><span class="kw">let </span>inner = |repo: <span class="kw-2">&mut </span>Repository| -> ServiceResult<()> {
|
||
<span class="kw">let </span><span class="kw-2">mut </span>tree_builder = <span class="kw">match </span>repo.head() {
|
||
<span class="prelude-val">Err</span>(<span class="kw">_</span>) => repo.treebuilder(<span class="prelude-val">None</span>).unwrap(),
|
||
|
||
<span class="prelude-val">Ok</span>(h) => repo.treebuilder(<span class="prelude-val">Some</span>(<span class="kw-2">&</span>h.peel_to_tree().unwrap())).unwrap(),
|
||
};
|
||
|
||
<span class="kw">let </span>odb = repo.odb().unwrap();
|
||
|
||
<span class="kw">let </span>content = <span class="kw">if </span>content.is_some() {
|
||
content.as_ref().unwrap()
|
||
} <span class="kw">else </span>{
|
||
FILE_CONTENT
|
||
};
|
||
|
||
<span class="kw">let </span>obj = odb.write(ObjectType::Blob, content.as_bytes()).unwrap();
|
||
tree_builder.insert(file_name, obj, <span class="number">0o100644</span>).unwrap();
|
||
<span class="kw">let </span>tree_hash = tree_builder.write().unwrap();
|
||
<span class="kw">let </span>author = Signature::now(<span class="string">"librepages"</span>, <span class="string">"admin@librepages.org"</span>).unwrap();
|
||
<span class="kw">let </span>committer = Signature::now(<span class="string">"librepages"</span>, <span class="string">"admin@librepages.org"</span>).unwrap();
|
||
|
||
<span class="kw">let </span>commit_tree = repo.find_tree(tree_hash).unwrap();
|
||
<span class="kw">let </span>msg = <span class="string">""</span>;
|
||
<span class="kw">if let </span><span class="prelude-val">Err</span>(e) = repo.head() {
|
||
<span class="kw">if </span>e.code() == ErrorCode::UnbornBranch && e.class() == ErrorClass::Reference {
|
||
<span class="comment">// fisrt commit ever; set parent commit(s) to empty array
|
||
</span>repo.commit(<span class="prelude-val">Some</span>(<span class="string">"HEAD"</span>), <span class="kw-2">&</span>author, <span class="kw-2">&</span>committer, msg, <span class="kw-2">&</span>commit_tree, <span class="kw-2">&</span>[])
|
||
.unwrap();
|
||
} <span class="kw">else </span>{
|
||
<span class="macro">panic!</span>(<span class="string">"{:?}"</span>, e);
|
||
}
|
||
} <span class="kw">else </span>{
|
||
<span class="kw">let </span>head_ref = repo.head().unwrap();
|
||
<span class="kw">let </span>head_commit = head_ref.peel_to_commit().unwrap();
|
||
repo.commit(
|
||
<span class="prelude-val">Some</span>(<span class="string">"HEAD"</span>),
|
||
<span class="kw-2">&</span>author,
|
||
<span class="kw-2">&</span>committer,
|
||
msg,
|
||
<span class="kw-2">&</span>commit_tree,
|
||
<span class="kw-2">&</span>[<span class="kw-2">&</span>head_commit],
|
||
)
|
||
.unwrap();
|
||
};
|
||
|
||
<span class="prelude-val">Ok</span>(())
|
||
};
|
||
|
||
<span class="kw">if </span>Repository::open(repo_path).is_err() {
|
||
<span class="kw">let _ </span>= Repository::init(repo_path);
|
||
}
|
||
<span class="kw">let </span><span class="kw-2">mut </span>repo = Repository::open(repo_path).unwrap();
|
||
<span class="kw">let _ </span>= inner(<span class="kw-2">&mut </span>repo);
|
||
}
|
||
|
||
<span class="attribute">#[test]
|
||
</span><span class="kw">fn </span>test_git_write_read_works() {
|
||
<span class="kw">const </span>FILENAME: <span class="kw-2">&</span>str = <span class="string">"README.txt"</span>;
|
||
|
||
<span class="kw">let </span>tmp_dir = Temp::new_dir().unwrap();
|
||
<span class="kw">let </span>path = tmp_dir.to_str().unwrap();
|
||
|
||
write_file_util(path, FILENAME, <span class="prelude-val">None</span>);
|
||
<span class="kw">let </span>resp = read_file(<span class="kw-2">&</span>Path::new(path).into(), FILENAME).unwrap();
|
||
<span class="macro">assert_eq!</span>(resp.filename, FILENAME);
|
||
<span class="macro">assert_eq!</span>(resp.content.bytes(), FILE_CONTENT.as_bytes());
|
||
<span class="macro">assert_eq!</span>(resp.mime.first().unwrap(), <span class="string">"text/plain"</span>);
|
||
|
||
<span class="kw">let </span>resp = read_preview_file(<span class="kw-2">&</span>Path::new(path).into(), <span class="string">"master"</span>, FILENAME).unwrap();
|
||
<span class="macro">assert_eq!</span>(resp.filename, FILENAME);
|
||
<span class="macro">assert_eq!</span>(resp.content.bytes(), FILE_CONTENT.as_bytes());
|
||
<span class="macro">assert_eq!</span>(resp.mime.first().unwrap(), <span class="string">"text/plain"</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(
|
||
read_preview_file(<span class="kw-2">&</span>Path::new(path).into(), <span class="string">"master"</span>, <span class="string">"file-does-not-exist.txt"</span>),
|
||
<span class="prelude-val">Err</span>(ServiceError::FileNotFound)
|
||
);
|
||
}
|
||
}
|
||
</code></pre></div>
|
||
</section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="pages" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.65.0 (897e37553 2022-11-02)" ></div></body></html> |