Walk through filesystem and print metadata
This commit is contained in:
Connor Johnstone
1
.gitignore
vendored
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1
.gitignore
vendored
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/target
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195
Cargo.lock
generated
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195
Cargo.lock
generated
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@@ -0,0 +1,195 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 4
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[[package]]
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name = "adler2"
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version = "2.0.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "320119579fcad9c21884f5c4861d16174d0e06250625266f50fe6898340abefa"
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[[package]]
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name = "byteorder"
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version = "1.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
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[[package]]
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name = "cfg-if"
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version = "1.0.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
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[[package]]
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name = "crc32fast"
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version = "1.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9481c1c90cbf2ac953f07c8d4a58aa3945c425b7185c9154d67a65e4230da511"
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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 = "data-encoding"
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version = "2.10.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d7a1e2f27636f116493b8b860f5546edb47c8d8f8ea73e1d2a20be88e28d1fea"
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[[package]]
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name = "flate2"
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version = "1.1.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "843fba2746e448b37e26a819579957415c8cef339bf08564fe8b7ddbd959573c"
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dependencies = [
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"crc32fast",
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"miniz_oxide",
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]
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[[package]]
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name = "lofty"
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version = "0.23.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "179408be6ddda3771589a4e940b1b5718613fa9986d78f420890d20e2b6fc278"
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dependencies = [
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"byteorder",
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"data-encoding",
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"flate2",
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"lofty_attr",
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"log",
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"ogg_pager",
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"paste",
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]
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[[package]]
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name = "lofty_attr"
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version = "0.12.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "458ace39169e4b83c4f77ae3d42d5d1d11c422feef590219a97c973d3b524557"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "log"
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version = "0.4.29"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5e5032e24019045c762d3c0f28f5b6b8bbf38563a65908389bf7978758920897"
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[[package]]
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name = "miniz_oxide"
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version = "0.8.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1fa76a2c86f704bdb222d66965fb3d63269ce38518b83cb0575fca855ebb6316"
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dependencies = [
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"adler2",
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"simd-adler32",
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]
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[[package]]
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name = "ogg_pager"
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version = "0.7.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6d6d1ca8364b84e0cf725eed06b1460c44671e6c0fb28765f5262de3ece07fdc"
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dependencies = [
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"byteorder",
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]
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[[package]]
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name = "paste"
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version = "1.0.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
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[[package]]
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name = "playlists"
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version = "0.1.0"
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dependencies = [
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"lofty",
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"walkdir",
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]
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[[package]]
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name = "proc-macro2"
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version = "1.0.106"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8fd00f0bb2e90d81d1044c2b32617f68fcb9fa3bb7640c23e9c748e53fb30934"
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dependencies = [
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"unicode-ident",
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]
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[[package]]
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name = "quote"
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version = "1.0.44"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "21b2ebcf727b7760c461f091f9f0f539b77b8e87f2fd88131e7f1b433b3cece4"
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dependencies = [
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"proc-macro2",
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]
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[[package]]
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name = "same-file"
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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 = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
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dependencies = [
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"winapi-util",
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]
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[[package]]
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name = "simd-adler32"
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version = "0.3.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e320a6c5ad31d271ad523dcf3ad13e2767ad8b1cb8f047f75a8aeaf8da139da2"
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[[package]]
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name = "syn"
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version = "2.0.117"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e665b8803e7b1d2a727f4023456bbbbe74da67099c585258af0ad9c5013b9b99"
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dependencies = [
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"proc-macro2",
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"quote",
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"unicode-ident",
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]
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[[package]]
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name = "unicode-ident"
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version = "1.0.24"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
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[[package]]
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name = "walkdir"
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version = "2.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
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dependencies = [
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"same-file",
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"winapi-util",
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]
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[[package]]
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name = "winapi-util"
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version = "0.1.11"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
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dependencies = [
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"windows-sys",
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]
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[[package]]
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name = "windows-link"
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version = "0.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
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[[package]]
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name = "windows-sys"
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version = "0.61.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
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dependencies = [
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"windows-link",
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]
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8
Cargo.toml
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8
Cargo.toml
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[package]
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name = "playlists"
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version = "0.1.0"
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edition = "2024"
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[dependencies]
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lofty = "0.23"
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walkdir = "2.5"
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22
src/filesystem.rs
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22
src/filesystem.rs
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use std::path::Path;
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use walkdir::WalkDir;
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const MUSIC_EXTENSIONS: &[&str] = &[
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"mp3", "flac", "ogg", "opus", "m4a", "mp4", "wav", "aif", "aiff", "wv", "ape", "mpc",
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];
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fn is_music_file(path: &Path) -> bool {
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path.extension()
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.and_then(|ext| ext.to_str())
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.is_some_and(|ext| MUSIC_EXTENSIONS.contains(&ext.to_ascii_lowercase().as_str()))
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}
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/// Returns an iterator over music file paths found recursively under `dir`.
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pub fn walk_music_files(dir: &Path) -> impl Iterator<Item = std::path::PathBuf> + '_ {
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WalkDir::new(dir)
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.into_iter()
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.filter_map(|e| e.ok())
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.filter(|e| is_music_file(e.path()))
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.map(|e| e.into_path())
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}
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30
src/main.rs
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30
src/main.rs
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@@ -0,0 +1,30 @@
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mod filesystem;
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mod metadata;
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use std::env;
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use std::path::Path;
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fn main() {
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let args: Vec<String> = env::args().collect();
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if args.len() != 2 {
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eprintln!("Usage: {} <directory>", args[0]);
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std::process::exit(1);
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}
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let dir = Path::new(&args[1]);
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for path in filesystem::walk_music_files(dir) {
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println!("{}", path.display());
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match metadata::read_track_metadata(&path) {
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Ok(Some(meta)) => {
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let unknown = "(unknown)";
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println!(" Title: {}", meta.title.as_deref().unwrap_or(unknown));
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println!(" Artist: {}", meta.artist.as_deref().unwrap_or(unknown));
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println!(" Album: {}", meta.album.as_deref().unwrap_or(unknown));
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}
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Ok(None) => println!(" (no metadata tags found)"),
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Err(e) => eprintln!(" warning: could not read metadata: {e}"),
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}
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}
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}
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25
src/metadata.rs
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25
src/metadata.rs
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@@ -0,0 +1,25 @@
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use std::path::Path;
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use lofty::file::TaggedFileExt;
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use lofty::tag::Accessor;
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pub struct TrackMetadata {
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pub title: Option<String>,
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pub artist: Option<String>,
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pub album: Option<String>,
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}
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/// Read metadata from a music file, returning `None` if no tags are present.
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pub fn read_track_metadata(path: &Path) -> Result<Option<TrackMetadata>, lofty::error::LoftyError> {
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let tagged_file = lofty::read_from_path(path)?;
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let Some(tag) = tagged_file.primary_tag().or_else(|| tagged_file.first_tag()) else {
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return Ok(None);
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};
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Ok(Some(TrackMetadata {
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title: tag.title().map(|s| s.into_owned()),
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artist: tag.artist().map(|s| s.into_owned()),
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album: tag.album().map(|s| s.into_owned()),
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}))
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}
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