459d9e106f
Change-Id: Idf11de78b0d6eca69fda34a89f2c57a00ed89ad5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10237 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: Adam Joseph <adam@westernsemico.com>
71 lines
2.3 KiB
Protocol Buffer
71 lines
2.3 KiB
Protocol Buffer
// SPDX-FileCopyrightText: edef <edef@unfathomable.blue>
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// SPDX-License-Identifier: OSL-3.0 OR MIT OR Apache-2.0
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syntax = "proto3";
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package tvix.castore.v1;
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option go_package = "code.tvl.fyi/tvix/castore-go;castorev1";
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// A Directory can contain Directory, File or Symlink nodes.
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// Each of these nodes have a name attribute, which is the basename in that
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// directory and node type specific attributes.
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// The name attribute:
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// - MUST not contain slashes or null bytes
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// - MUST not be '.' or '..'
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// - MUST be unique across all three lists
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// Elements in each list need to be lexicographically ordered by the name
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// attribute.
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message Directory {
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repeated DirectoryNode directories = 1;
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repeated FileNode files = 2;
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repeated SymlinkNode symlinks = 3;
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}
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// A DirectoryNode represents a directory in a Directory.
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message DirectoryNode {
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// The (base)name of the directory
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bytes name = 1;
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// The blake3 hash of a Directory message, serialized in protobuf canonical form.
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bytes digest = 2;
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// Number of child elements in the Directory referred to by `digest`.
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// Calculated by summing up the numbers of `directories`, `files` and
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// `symlinks`, and for each directory, its size field. Used for inode number
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// calculation.
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// This field is precisely as verifiable as any other Merkle tree edge.
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// Resolve `digest`, and you can compute it incrementally. Resolve the entire
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// tree, and you can fully compute it from scratch.
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// A credulous implementation won't reject an excessive size, but this is
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// harmless: you'll have some ordinals without nodes. Undersizing is obvious
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// and easy to reject: you won't have an ordinal for some nodes.
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uint64 size = 3;
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}
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// A FileNode represents a regular or executable file in a Directory.
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message FileNode {
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// The (base)name of the file
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bytes name = 1;
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// The blake3 digest of the file contents
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bytes digest = 2;
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// The file content size
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uint64 size = 3;
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// Whether the file is executable
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bool executable = 4;
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}
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// A SymlinkNode represents a symbolic link in a Directory.
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message SymlinkNode {
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// The (base)name of the symlink
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bytes name = 1;
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// The target of the symlink.
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bytes target = 2;
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}
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// A Node is either a DirectoryNode, FileNode or SymlinkNode.
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message Node {
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oneof node {
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DirectoryNode directory = 1;
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FileNode file = 2;
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SymlinkNode symlink = 3;
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}
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}
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