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#!/bin/sh
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# Translates a MySQL DB export to PostgreSQL
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# The export must be created with:
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# `--compatible=postgresql --add-locks=false --set-charset`
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# Usage: self {input...|<input} >translated
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selfDir="$(dirname -- "$0")"
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sedEreFlag="$(test "$(uname)" = Darwin && echo E || echo r)"
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sed () { "$(which sed)" -"$sedEreFlag" "$@";}
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sed \
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-e 's/ UNIQUE KEY ("[^"]*")/ \/*CONSTRAINT \1 *\/UNIQUE/g' \
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-e 's/ UNIQUE KEY/ UNIQUE/g' \
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-e 's/^ ((CONSTRAINT "[^"]*" )?((FULLTEXT|FOREIGN) )?KEY .*[^,])(,?)$/ \/*\1*\/CHECK (true)\5/' \
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-e "s/\/\*.* (SET NAMES )([0-9A-Za-z_]+) \*\/;/\1'\2';/" \
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-e 's/ (CHARACTER SET|COLLATE) [0-9A-Za-z_]+//g' \
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-e "s/ COMMENT '[^']*'//g" \
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-e 's/ (binary|blob)/ bytea/g' \
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-e 's/ (tinytext|mediumtext|longtext)/ text/g' \
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-e 's/ (int|mediumint|smallint|tinyint)([ (])/ integer\2/g' \
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-e 's/ double/ double precision/g' \
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-e 's/ (integer|bigint|bytea|double precision|float)(\([^)]*\))?( unsigned)?/ \1/g' \
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-e 's/ (char)\(0\)/ \1/g' \
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-e 's/ datetime/ timestamp/g' \
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-e 's/ ("[^"]*") enum(\([^()]*\))/ \1 text CHECK (\1 in \2)/g' \
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"$@"\
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|"$selfDir/my2pg.data"
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