Parse migration failed exception (Android Room)

mig

#!/bin/bash

# Clean up on exit
function finish {
  rm -f expected found
}
trap finish EXIT

# How to parse JSON
JQ="jq --sort-keys"

# Convert log to JSON format
toJson () {
  # First sed removes spaces between indices ("columns:[id, col1, col2]" becomes "columns:[id,col1,col2]")
  # Indeed, spaces are later replaced to quotes, and we don't want that (would cause parse errors: columns:[id,"col1,"col2])
  # Second sed ensures single column indices have quotes

  sed -r ':a;s#(\[[[:alnum:],]*) ([[:alnum:] ,]*\])#"\1\2"#;ta' \
    | sed -r 's/(\[[[:alnum:]]+\])/"\1"/g' \
    | sed -e 's/} ,/},/g' \
      -e 's/Column//g' \
      -e 's/Index//g' \
      -e "s/'/\"/g" -e 's/=/":/g' -e 's/ /"/g' -e 's/{/{"/g'
}

# Check arg
in="$1"
if [ "$in" == "" ]
then
    echo "Usage: $0 <dump of error message>" >&2
    echo "For example:" >&2
    echo "Usage: $0 \"java.lang.IllegalStateException: Migration failed. expected:TableInfo{name='...', columns={...}, foreignKeys=[], indices=[]} , found:TableInfo{name='...', columns={...}, foreignKeys=[], indices=[]}\"" >&2
    exit 1
fi

# Parse input: split into expected/found
splitInput=$(echo "$in" | sed -e $'s/expected:TableInfo/\\\n/g' -e $'s/ , found:TableInfo/\\\n/g')

# Diff 'expected' and 'found' as JSON
echo "$splitInput" | tail -2 | head -1 | toJson | $JQ . >expected
echo "$splitInput" | tail -1           | toJson | $JQ . >found
vimdiff expected found

Added support for indices (rev 3). Foreign keys is almost identical so it could be done easily.

Couldn't able to run bash. But luckly somebody hosted this https://hrankit.github.io/RoomSQLiteDifferenceFinder/

Couldn't able to run bash. But luckly somebody hosted this https://hrankit.github.io/RoomSQLiteDifferenceFinder/

Thanks for sharing this link. 👍