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62 lines
2.1 KiB
62 lines
2.1 KiB
#!/bin/bash
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# A script to generate SQL from PNG images
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# depends on hexdump and base64
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scriptdir="$(dirname $0)"
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pngdir="${1:-png_modern}"
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sqlbasedir="$scriptdir/../../database"
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imagefile="images.sql"
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imagefile_mysql="$sqlbasedir/mysql/$imagefile"
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imagefile_pgsql="$sqlbasedir/postgresql/$imagefile"
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imagefile_sqlite3="$sqlbasedir/sqlite3/$imagefile"
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imagefile_oracle="$sqlbasedir/oracle/$imagefile"
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oracle_string_max=2048
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oracle_line_max=15
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oracle_base64tmp=tmp_b64
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for imagefile in "$imagefile_mysql" "$imagefile_pgsql" "$imagefile_sqlite3" "$imagefile_oracle"; do
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[[ -s "$imagefile" ]] && {
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echo "Non-empty $imagefile already exists, stopping"
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exit 1
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}
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done
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echo "Generating SQL files"
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cat images_oracle_start.txt > "$imagefile_oracle"
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imagecount=$(ls $pngdir/*.png | wc -l)
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# TODO: this loop won't work with directory names, containing spaces
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# using 'find' here seems to be a bit excessive for now
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for imagefile in $pngdir/*.png; do
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((imagesdone++))
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imagename="$(basename "${imagefile%.png}")"
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image_data=$(hexdump -ve '"" 1/1 "%02X"' "$imagefile")
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# ----- MySQL
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echo "INSERT INTO \`images\` (\`imageid\`,\`imagetype\`,\`name\`,\`image\`) VALUES ($imagesdone,1,'$imagename',0x$image_data);" >> "$imagefile_mysql"
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# ----- PostgreSQL
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echo "INSERT INTO images (imageid,imagetype,name,image) VALUES ($imagesdone,1,'$imagename',decode('$image_data','hex'));" >> "$imagefile_pgsql"
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# ----- Oracle
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base64 -w$oracle_string_max "$imagefile" > $oracle_base64tmp
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split -l$oracle_line_max $oracle_base64tmp $oracle_base64tmp
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rm -f $oracle_base64tmp
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echo -e "\tl_clob := EMPTY_CLOB();" >> "$imagefile_oracle"
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for oracle_imagefile in $oracle_base64tmp*; do
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echo -e "\tl_clob := l_clob || '$(<$oracle_imagefile)';" >> "$imagefile_oracle"
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rm -f $oracle_imagefile
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done
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echo -e "\tINSERT INTO images VALUES ($imagesdone,1,'$imagename',base64_decode(l_clob));" >> "$imagefile_oracle"
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# ----- SQLite
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echo "INSERT INTO images (imageid,imagetype,name,image) VALUES ($imagesdone,1,'$imagename','$image_data');" >> "$imagefile_sqlite3"
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echo -ne "\b\b\b\b$[$imagesdone*100/$imagecount]% "
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done
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cat images_oracle_end.txt >> "$imagefile_oracle"
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echo
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