45 lines
1.1 KiB
Bash
Executable File
45 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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#
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# Take a pathname as an argument and output a playlist to standard
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# output and errors to standard error.
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#
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# The output format is repeated sequences of:
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#
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# <pathname>\t<artist>\t<title>[\t<bpm>]\n
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#
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# If the tab (\t) or newline (\n) characters appear in a filename,
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# unexpected things will happen.
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PATHNAME="$1"
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if [ -d "$PATHNAME" ]; then
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find -L "$PATHNAME" -type f |
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grep -iE '\.(ogg|oga|aac|cdaudio|mp3|flac|wav|aif|aiff|m4a|wma)$'
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else
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cat "$PATHNAME"
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fi |
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# Parse artist and title information from matching filenames
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sed -n '
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{
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# /[<ABnum>[.]] <artist> - <title>.ext
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s:/\([A-H]\?[A0-9]\?[0-9].\? \+\)\?\([^/]*\) \+- \+\([^/]*\)\.[A-Z0-9]*$:\0\t\2\t\3:pi
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t
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# /<artist> - <album>[/(Disc|Side) <name>]/[<ABnum>[.]] <title>.ext
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s:/\([^/]*\) \+- \+\([^/]*\)\(/\(disc\|side\) [0-9A-Z][^/]*\)\?/\([A-H]\?[A0-9]\?[0-9].\? \+\)\?\([^/]*\)\.[A-Z0-9]*$:\0\t\1\t\6:pi
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t
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# /[<ABnum>[.]] <name>.ext
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s:/\([A-H]\?[A0-9]\?[0-9].\? \+\)\?\([^/]*\)\.[A-Z0-9]*$:\0\t\t\2:pi
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}' |
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# Extract BPM metadata from title (eg. "Ghostbusters (115.6 BPM)")
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sed '
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{
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# BPM
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s:\(.*\) *(\([0-9]\+\.\?[0-9]\+\) *BPM)$:\1\t\2:
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}'
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