3---database-trait-and-json-implementation (#6)
Closes #3 Co-authored-by: Wojciech Kozlowski <wk@wojciechkozlowski.eu> Reviewed-on: https://git.wojciechkozlowski.eu/wojtek/musichoard/pulls/6
This commit is contained in:
parent
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Cargo.lock
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213
Cargo.lock
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@ -2,11 +2,105 @@
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# It is not intended for manual editing.
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# It is not intended for manual editing.
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version = 3
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version = 3
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[[package]]
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name = "bitflags"
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version = "1.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
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[[package]]
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name = "cc"
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version = "1.0.79"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
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[[package]]
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name = "cfg-if"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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[[package]]
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name = "errno"
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version = "0.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "50d6a0976c999d473fe89ad888d5a284e55366d9dc9038b1ba2aa15128c4afa0"
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dependencies = [
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"errno-dragonfly",
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"libc",
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"windows-sys",
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]
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[[package]]
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name = "errno-dragonfly"
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version = "0.1.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
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dependencies = [
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"cc",
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"libc",
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]
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[[package]]
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name = "fastrand"
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version = "1.9.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e51093e27b0797c359783294ca4f0a911c270184cb10f85783b118614a1501be"
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dependencies = [
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"instant",
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]
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[[package]]
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name = "hermit-abi"
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version = "0.3.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
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[[package]]
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name = "instant"
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version = "0.1.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
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dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "io-lifetimes"
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version = "1.0.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "09270fd4fa1111bc614ed2246c7ef56239a3063d5be0d1ec3b589c505d400aeb"
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dependencies = [
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"hermit-abi",
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"libc",
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"windows-sys",
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]
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[[package]]
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name = "itoa"
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version = "1.0.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "453ad9f582a441959e5f0d088b02ce04cfe8d51a8eaf077f12ac6d3e94164ca6"
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[[package]]
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name = "libc"
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version = "0.2.140"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "99227334921fae1a979cf0bfdfcc6b3e5ce376ef57e16fb6fb3ea2ed6095f80c"
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[[package]]
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name = "linux-raw-sys"
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version = "0.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "cd550e73688e6d578f0ac2119e32b797a327631a42f9433e59d02e139c8df60d"
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[[package]]
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[[package]]
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name = "musichoard"
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name = "musichoard"
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version = "0.1.0"
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version = "0.1.0"
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dependencies = [
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dependencies = [
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"serde",
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"serde",
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"serde_json",
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"tempfile",
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"uuid",
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"uuid",
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]
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]
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@ -28,6 +122,35 @@ dependencies = [
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"proc-macro2",
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"proc-macro2",
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]
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]
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name = "redox_syscall"
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version = "0.3.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "567664f262709473930a4bf9e51bf2ebf3348f2e748ccc50dea20646858f8f29"
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dependencies = [
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"bitflags",
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]
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[[package]]
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name = "rustix"
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version = "0.37.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c348b5dc624ecee40108aa2922fed8bad89d7fcc2b9f8cb18f632898ac4a37f9"
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dependencies = [
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"bitflags",
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"errno",
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"io-lifetimes",
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"libc",
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"linux-raw-sys",
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"windows-sys",
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]
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[[package]]
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name = "ryu"
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version = "1.0.13"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f91339c0467de62360649f8d3e185ca8de4224ff281f66000de5eb2a77a79041"
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[[package]]
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name = "serde"
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name = "serde"
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version = "1.0.159"
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version = "1.0.159"
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@ -48,6 +171,17 @@ dependencies = [
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"syn",
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"syn",
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]
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]
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[[package]]
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name = "serde_json"
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version = "1.0.95"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d721eca97ac802aa7777b701877c8004d950fc142651367300d21c1cc0194744"
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dependencies = [
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"itoa",
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"ryu",
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"serde",
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]
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name = "syn"
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name = "syn"
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version = "2.0.11"
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version = "2.0.11"
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@ -59,6 +193,19 @@ dependencies = [
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"unicode-ident",
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"unicode-ident",
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]
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]
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name = "tempfile"
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version = "3.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b9fbec84f381d5795b08656e4912bec604d162bff9291d6189a78f4c8ab87998"
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dependencies = [
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"cfg-if",
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"fastrand",
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"redox_syscall",
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"rustix",
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"windows-sys",
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]
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name = "unicode-ident"
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name = "unicode-ident"
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version = "1.0.8"
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version = "1.0.8"
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@ -73,3 +220,69 @@ checksum = "1674845326ee10d37ca60470760d4288a6f80f304007d92e5c53bab78c9cfd79"
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dependencies = [
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dependencies = [
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"serde",
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"serde",
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]
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]
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name = "windows-sys"
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version = "0.45.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
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dependencies = [
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"windows-targets",
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]
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name = "windows-targets"
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version = "0.42.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
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dependencies = [
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"windows_aarch64_gnullvm",
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"windows_aarch64_msvc",
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"windows_i686_gnu",
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"windows_i686_msvc",
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"windows_x86_64_gnu",
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"windows_x86_64_gnullvm",
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"windows_x86_64_msvc",
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]
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[[package]]
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name = "windows_aarch64_gnullvm"
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version = "0.42.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
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name = "windows_aarch64_msvc"
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version = "0.42.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
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name = "windows_i686_gnu"
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version = "0.42.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
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name = "windows_i686_msvc"
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version = "0.42.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
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[[package]]
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name = "windows_x86_64_gnu"
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version = "0.42.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
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[[package]]
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name = "windows_x86_64_gnullvm"
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version = "0.42.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
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[[package]]
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name = "windows_x86_64_msvc"
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version = "0.42.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
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@ -7,4 +7,8 @@ edition = "2021"
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[dependencies]
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[dependencies]
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serde = { version = "1.0", features = ["derive"] }
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serde = { version = "1.0", features = ["derive"] }
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serde_json = "1.0"
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uuid = { version = "1.3", features = ["serde"] }
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uuid = { version = "1.3", features = ["serde"] }
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[dev-dependencies]
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tempfile = "3.5"
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197
src/database/json.rs
Normal file
197
src/database/json.rs
Normal file
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use std::fs::File;
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use std::io::{Read, Write};
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use std::path::Path;
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use serde::de::DeserializeOwned;
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use serde::Serialize;
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use crate::database::{DatabaseRead, DatabaseWrite};
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/// A JSON file database.
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pub struct DatabaseJson {
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database_file: File,
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}
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impl DatabaseJson {
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/// Create a read-only database instance. If the JSON file does not exist, an error is returned.
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pub fn reader(path: &Path) -> Result<Self, std::io::Error> {
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Ok(Self {
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database_file: File::open(path)?,
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})
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}
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/// Create a write-only database instance. If the file does not exist, it is created, if it does
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/// exist, it is truncated.
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pub fn writer(path: &Path) -> Result<Self, std::io::Error> {
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Ok(Self {
|
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database_file: File::create(path)?,
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|
})
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}
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}
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impl DatabaseRead for DatabaseJson {
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fn read<D>(&mut self, collection: &mut D) -> Result<(), std::io::Error>
|
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where
|
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D: DeserializeOwned,
|
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{
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// Read entire file to memory as for now this is faster than a buffered read from disk:
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||||||
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// https://github.com/serde-rs/json/issues/160
|
||||||
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let mut serialized = String::new();
|
||||||
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self.database_file.read_to_string(&mut serialized)?;
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||||||
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||||||
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*collection = serde_json::from_str(&serialized)?;
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|
Ok(())
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
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impl DatabaseWrite for DatabaseJson {
|
||||||
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fn write<S>(&mut self, collection: &S) -> Result<(), std::io::Error>
|
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where
|
||||||
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S: Serialize,
|
||||||
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{
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let serialized = serde_json::to_string(&collection)?;
|
||||||
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self.database_file.write_all(serialized.as_bytes())?;
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Ok(())
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}
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}
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#[cfg(test)]
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mod tests {
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use std::path::Path;
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||||||
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use tempfile::NamedTempFile;
|
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use uuid::uuid;
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||||||
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use super::*;
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||||||
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use crate::{Artist, Release, ReleaseGroup, ReleaseGroupType, Track};
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|
||||||
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const TEST_FILENAME: &str = "tests/files/database_json_test.json";
|
||||||
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|
||||||
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fn test_data() -> Vec<ReleaseGroup> {
|
||||||
|
vec![
|
||||||
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ReleaseGroup {
|
||||||
|
r#type: ReleaseGroupType::Album,
|
||||||
|
title: String::from("Release group A"),
|
||||||
|
artist: vec![Artist {
|
||||||
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name: String::from("Artist A"),
|
||||||
|
mbid: Some(uuid!("f7769831-746b-4a12-8124-0123d7fe17c9")),
|
||||||
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}],
|
||||||
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year: 1998,
|
||||||
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mbid: Some(uuid!("89efbf43-3395-4f6e-ac11-32c1ce514bb0")),
|
||||||
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releases: vec![Release {
|
||||||
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tracks: vec![
|
||||||
|
Track {
|
||||||
|
number: 1,
|
||||||
|
title: String::from("Track A.1"),
|
||||||
|
artist: vec![Artist {
|
||||||
|
name: String::from("Artist A.A"),
|
||||||
|
mbid: Some(uuid!("b7f7163d-61d5-4c96-b305-005df54fb999")),
|
||||||
|
}],
|
||||||
|
mbid: None,
|
||||||
|
},
|
||||||
|
Track {
|
||||||
|
number: 2,
|
||||||
|
title: String::from("Track A.2"),
|
||||||
|
artist: vec![Artist {
|
||||||
|
name: String::from("Artist A.A"),
|
||||||
|
mbid: Some(uuid!("b7f7163d-61d5-4c96-b305-005df54fb999")),
|
||||||
|
}],
|
||||||
|
mbid: None,
|
||||||
|
},
|
||||||
|
Track {
|
||||||
|
number: 3,
|
||||||
|
title: String::from("Track A.3"),
|
||||||
|
artist: vec![
|
||||||
|
Artist {
|
||||||
|
name: String::from("Artist A.A"),
|
||||||
|
mbid: Some(uuid!("b7f7163d-61d5-4c96-b305-005df54fb999")),
|
||||||
|
},
|
||||||
|
Artist {
|
||||||
|
name: String::from("Artist A.B"),
|
||||||
|
mbid: Some(uuid!("6f6b46f2-4bb5-47e7-a8c8-03ebde30164f")),
|
||||||
|
},
|
||||||
|
],
|
||||||
|
mbid: None,
|
||||||
|
},
|
||||||
|
],
|
||||||
|
mbid: None,
|
||||||
|
}],
|
||||||
|
},
|
||||||
|
ReleaseGroup {
|
||||||
|
r#type: ReleaseGroupType::Single,
|
||||||
|
title: String::from("Release group B"),
|
||||||
|
artist: vec![Artist {
|
||||||
|
name: String::from("Artist B"),
|
||||||
|
mbid: None,
|
||||||
|
}],
|
||||||
|
year: 2008,
|
||||||
|
mbid: None,
|
||||||
|
releases: vec![Release {
|
||||||
|
tracks: vec![Track {
|
||||||
|
number: 1,
|
||||||
|
title: String::from("Track B.1"),
|
||||||
|
artist: vec![Artist {
|
||||||
|
name: String::from("Artist B.A"),
|
||||||
|
mbid: Some(uuid!("d927e216-2e63-415c-acec-bf9f1abd3e3c")),
|
||||||
|
}],
|
||||||
|
mbid: Some(uuid!("dacc9ce4-118c-4c92-aed7-1ebe4c7543b5")),
|
||||||
|
}],
|
||||||
|
mbid: Some(uuid!("ac7b642d-8b71-4588-a694-e5ae43fac873")),
|
||||||
|
}],
|
||||||
|
},
|
||||||
|
]
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn write() {
|
||||||
|
let write_data = test_data();
|
||||||
|
let temp_file = NamedTempFile::new().unwrap();
|
||||||
|
DatabaseJson::writer(temp_file.path())
|
||||||
|
.unwrap()
|
||||||
|
.write(&write_data)
|
||||||
|
.unwrap();
|
||||||
|
|
||||||
|
let mut write_data_str = String::new();
|
||||||
|
File::open(temp_file.path())
|
||||||
|
.unwrap()
|
||||||
|
.read_to_string(&mut write_data_str)
|
||||||
|
.unwrap();
|
||||||
|
|
||||||
|
let mut test_data_str = String::new();
|
||||||
|
File::open(TEST_FILENAME)
|
||||||
|
.unwrap()
|
||||||
|
.read_to_string(&mut test_data_str)
|
||||||
|
.unwrap();
|
||||||
|
|
||||||
|
assert_eq!(write_data_str, test_data_str);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn read() {
|
||||||
|
let mut read_data: Vec<ReleaseGroup> = vec![];
|
||||||
|
DatabaseJson::reader(Path::new(TEST_FILENAME))
|
||||||
|
.unwrap()
|
||||||
|
.read(&mut read_data)
|
||||||
|
.unwrap();
|
||||||
|
assert_eq!(read_data, test_data());
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn reverse() {
|
||||||
|
let write_data = test_data();
|
||||||
|
let mut read_data: Vec<ReleaseGroup> = vec![];
|
||||||
|
|
||||||
|
let temp_file = NamedTempFile::new().unwrap();
|
||||||
|
|
||||||
|
DatabaseJson::writer(temp_file.path())
|
||||||
|
.unwrap()
|
||||||
|
.write(&write_data)
|
||||||
|
.unwrap();
|
||||||
|
DatabaseJson::reader(temp_file.path())
|
||||||
|
.unwrap()
|
||||||
|
.read(&mut read_data)
|
||||||
|
.unwrap();
|
||||||
|
|
||||||
|
assert_eq!(write_data, read_data);
|
||||||
|
}
|
||||||
|
}
|
||||||
18
src/database/mod.rs
Normal file
18
src/database/mod.rs
Normal file
@ -0,0 +1,18 @@
|
|||||||
|
use serde::de::DeserializeOwned;
|
||||||
|
use serde::Serialize;
|
||||||
|
|
||||||
|
pub mod json;
|
||||||
|
|
||||||
|
/// Trait for database reads.
|
||||||
|
pub trait DatabaseRead {
|
||||||
|
fn read<D>(&mut self, collection: &mut D) -> Result<(), std::io::Error>
|
||||||
|
where
|
||||||
|
D: DeserializeOwned;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Trait for database writes.
|
||||||
|
pub trait DatabaseWrite {
|
||||||
|
fn write<S>(&mut self, collection: &S) -> Result<(), std::io::Error>
|
||||||
|
where
|
||||||
|
S: Serialize;
|
||||||
|
}
|
||||||
22
src/lib.rs
22
src/lib.rs
@ -1,38 +1,38 @@
|
|||||||
//! MusicHoard - a music collection manager.
|
//! MusicHoard - a music collection manager.
|
||||||
|
|
||||||
use serde::{Deserialize, Serialize};
|
use serde::{Deserialize, Serialize};
|
||||||
use uuid;
|
use uuid::Uuid;
|
||||||
|
|
||||||
|
pub mod database;
|
||||||
|
|
||||||
/// [MusicBrainz Identifier](https://musicbrainz.org/doc/MusicBrainz_Identifier) (MBID).
|
/// [MusicBrainz Identifier](https://musicbrainz.org/doc/MusicBrainz_Identifier) (MBID).
|
||||||
pub type Mbid = uuid::Uuid;
|
pub type Mbid = Uuid;
|
||||||
|
|
||||||
/// [Artist](https://musicbrainz.org/doc/Artist).
|
/// [Artist](https://musicbrainz.org/doc/Artist).
|
||||||
#[derive(Deserialize, Serialize)]
|
#[derive(Debug, Deserialize, Serialize, PartialEq)]
|
||||||
pub struct Artist {
|
pub struct Artist {
|
||||||
pub name: String,
|
pub name: String,
|
||||||
pub mbid: Option<Mbid>,
|
pub mbid: Option<Mbid>,
|
||||||
}
|
}
|
||||||
|
|
||||||
/// [Track](https://musicbrainz.org/doc/Track).
|
/// [Track](https://musicbrainz.org/doc/Track).
|
||||||
#[derive(Deserialize, Serialize)]
|
#[derive(Debug, Deserialize, Serialize, PartialEq)]
|
||||||
pub struct Track {
|
pub struct Track {
|
||||||
pub number: u32,
|
pub number: u32,
|
||||||
pub title: String,
|
pub title: String,
|
||||||
pub artist: Artist,
|
pub artist: Vec<Artist>,
|
||||||
pub mbid: Option<Mbid>,
|
pub mbid: Option<Mbid>,
|
||||||
}
|
}
|
||||||
|
|
||||||
/// [Release](https://musicbrainz.org/doc/Release).
|
/// [Release](https://musicbrainz.org/doc/Release).
|
||||||
#[derive(Deserialize, Serialize)]
|
#[derive(Debug, Deserialize, Serialize, PartialEq)]
|
||||||
pub struct Release {
|
pub struct Release {
|
||||||
pub title: String,
|
|
||||||
pub artist: String,
|
|
||||||
pub tracks: Vec<Track>,
|
pub tracks: Vec<Track>,
|
||||||
pub mbid: Option<Mbid>,
|
pub mbid: Option<Mbid>,
|
||||||
}
|
}
|
||||||
|
|
||||||
/// [Release group primary type](https://musicbrainz.org/doc/Release_Group/Type).
|
/// [Release group primary type](https://musicbrainz.org/doc/Release_Group/Type).
|
||||||
#[derive(Deserialize, Serialize)]
|
#[derive(Debug, Deserialize, Serialize, PartialEq)]
|
||||||
pub enum ReleaseGroupType {
|
pub enum ReleaseGroupType {
|
||||||
Album,
|
Album,
|
||||||
Ep,
|
Ep,
|
||||||
@ -41,11 +41,11 @@ pub enum ReleaseGroupType {
|
|||||||
}
|
}
|
||||||
|
|
||||||
/// [Release group](https://musicbrainz.org/doc/Release_Group).
|
/// [Release group](https://musicbrainz.org/doc/Release_Group).
|
||||||
#[derive(Deserialize, Serialize)]
|
#[derive(Debug, Deserialize, Serialize, PartialEq)]
|
||||||
pub struct ReleaseGroup {
|
pub struct ReleaseGroup {
|
||||||
pub r#type: ReleaseGroupType,
|
pub r#type: ReleaseGroupType,
|
||||||
pub title: String,
|
pub title: String,
|
||||||
pub artist: Artist,
|
pub artist: Vec<Artist>,
|
||||||
pub year: u32,
|
pub year: u32,
|
||||||
pub mbid: Option<Mbid>,
|
pub mbid: Option<Mbid>,
|
||||||
pub releases: Vec<Release>,
|
pub releases: Vec<Release>,
|
||||||
|
|||||||
1
tests/files/database_json_test.json
Normal file
1
tests/files/database_json_test.json
Normal file
@ -0,0 +1 @@
|
|||||||
|
[{"type":"Album","title":"Release group A","artist":[{"name":"Artist A","mbid":"f7769831-746b-4a12-8124-0123d7fe17c9"}],"year":1998,"mbid":"89efbf43-3395-4f6e-ac11-32c1ce514bb0","releases":[{"tracks":[{"number":1,"title":"Track A.1","artist":[{"name":"Artist A.A","mbid":"b7f7163d-61d5-4c96-b305-005df54fb999"}],"mbid":null},{"number":2,"title":"Track A.2","artist":[{"name":"Artist A.A","mbid":"b7f7163d-61d5-4c96-b305-005df54fb999"}],"mbid":null},{"number":3,"title":"Track A.3","artist":[{"name":"Artist A.A","mbid":"b7f7163d-61d5-4c96-b305-005df54fb999"},{"name":"Artist A.B","mbid":"6f6b46f2-4bb5-47e7-a8c8-03ebde30164f"}],"mbid":null}],"mbid":null}]},{"type":"Single","title":"Release group B","artist":[{"name":"Artist B","mbid":null}],"year":2008,"mbid":null,"releases":[{"tracks":[{"number":1,"title":"Track B.1","artist":[{"name":"Artist B.A","mbid":"d927e216-2e63-415c-acec-bf9f1abd3e3c"}],"mbid":"dacc9ce4-118c-4c92-aed7-1ebe4c7543b5"}],"mbid":"ac7b642d-8b71-4588-a694-e5ae43fac873"}]}]
|
||||||
Loading…
Reference in New Issue
Block a user