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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| "use strict"; | ||
|
|
||
| var common = {}; | ||
|
|
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| var changing = require('best-globals').changing; | ||
| var fs = require('fs-promise'); | ||
| var jsYaml = require('js-yaml'); | ||
|
|
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| common.createParams = function createParams(params, preparedParams) { | ||
| var res = { | ||
| tableName:params.tableName, | ||
| rawTable:params.rawTable, | ||
| opts: changing(params.opts, preparedParams.opts), | ||
| }; | ||
| res.opts.columns = params.columns || preparedParams.columns; | ||
| return res; | ||
| } | ||
|
|
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| common.writeConfigYaml = function writeConfigYaml(params, inputYaml) { | ||
| var create = false; | ||
| return fs.exists(inputYaml).then(function(exists) { | ||
| create = ! exists; | ||
| if(create) { | ||
| var createdParams = Object.assign({}, params); | ||
| if(! createdParams.opts.columns) { delete createdParams.opts.columns; } | ||
| delete createdParams.rawTable; | ||
| return fs.writeFile(inputYaml, jsYaml.safeDump(createdParams), {encoding:'utf8'}); | ||
| } | ||
| }).then(function() { | ||
| if(create) { | ||
| process.stdout.write("Generated '"+inputYaml+"' with deduced options\n"); | ||
| } else { | ||
| process.stdout.write("Not overwriding existing '"+inputYaml+"'\n"); | ||
| } | ||
| }); | ||
| } | ||
|
|
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| module.exports = common; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| "use strict"; | ||
|
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| var fast = {}; | ||
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| var txtToSql = require('../lib/txt-to-sql.js'); | ||
| var common = require('./common.js'); | ||
| var fsSync = require('fs'); | ||
| var readline = require('readline'); | ||
|
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| function fastProcessEncodingOptions(info) { | ||
| return txtToSql.getEncoding(info.rawTable).then(function(encoding) { | ||
| info.inputEncodingDetected = encoding; | ||
| if(! info.opts.inputEncoding) { info.opts.inputEncoding = info.inputEncodingDetected; } | ||
| if(! info.opts.outputEncoding) { info.opts.outputEncoding = info.inputEncodingDetected; } | ||
| return info; | ||
| }); | ||
| } | ||
|
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| function fastProcessLine(info, line) { | ||
| if(line && info.lines && info.lines.length<info.fastMaxLines) { | ||
| info.lines.push(line); | ||
| } | ||
| } | ||
|
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| function fastAnalyzeLines(info) { | ||
| txtToSql.separateRows(info); | ||
| txtToSql.verifyColumnCount(info); | ||
| txtToSql.transformNames(info); | ||
| txtToSql.verifyColumnNames(info); | ||
| txtToSql.determineColumnTypes(info); | ||
| txtToSql.determineColumnValuesInfo(info); | ||
| txtToSql.determinePrimaryKey(info); | ||
| return txtToSql.generatePrepareResult(info); | ||
| } | ||
|
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| function fastInsert(outStream, info, line) { | ||
| if(line.trim() !=='') { | ||
| var row = [txtToSql.separateOneRow(info, line)]; | ||
| var rows = txtToSql.createAdaptedRows(info, row); | ||
| var insertInto = txtToSql.createInsertInto(info); | ||
| var insertValues = txtToSql.createInsertValues(rows, info.columnsInfo).map(function(c) { return insertInto + c + ";"; }).join('\n'); | ||
| outStream.write(insertValues+'\n'); | ||
| } | ||
| } | ||
|
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| function fastCreateCreate(info) { | ||
| txtToSql.quoteNames(info); | ||
| txtToSql.generateDropTable(info); | ||
| txtToSql.generateCreateScript(info); | ||
| } | ||
|
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| function fastFinalize(info, outStream) { | ||
| fastCreateCreate(info); | ||
| //txtToSql.removeIgnoredLines(info); | ||
| txtToSql.generateInsertScript(info); | ||
| //console.log("info", info.scripts) | ||
| info.scripts.forEach(function(script) { | ||
| outStream.write(script.sql); | ||
| }); | ||
| } | ||
|
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| function doFast(params, inputBase, fastBufferingThreshold) { | ||
| var inStream, outStream; | ||
| var rl; | ||
| var preparedResult; | ||
| return Promise.resolve().then(function() { | ||
| return txtToSql.verifyInputParams(params); | ||
| }).then(fastProcessEncodingOptions) | ||
| .then(function(info) { | ||
| //console.log("info", info); | ||
| inStream = fsSync.createReadStream(inputBase+'.txt', {encoding:'utf8'}); | ||
| outStream = fsSync.createWriteStream(inputBase+'.sql', {encoding:'utf8'}); | ||
| info.lines = []; | ||
| // maximo de lineas para utilizar procesamiento standard | ||
| info.fastMaxLines = fastBufferingThreshold; | ||
| rl = readline.createInterface({ | ||
| input: inStream, | ||
| terminal: false | ||
| }); | ||
| rl.on('line', function(line) { | ||
| //console.log("line", line); | ||
| if(! info.headers) { | ||
| info.headers = line; | ||
| txtToSql.determineSeparator(info); | ||
| txtToSql.determineDelimiter(info); | ||
| txtToSql.separateColumns(info); | ||
| } else { | ||
| fastProcessLine(info, line); | ||
| if(info.lines) { | ||
| if(info.lines.length===info.fastMaxLines) { | ||
| preparedResult = fastAnalyzeLines(info); | ||
| fastCreateCreate(info); | ||
| // deben estar drop y create | ||
| info.scripts.forEach(function(script) { | ||
| outStream.write(script.sql); | ||
| }); | ||
| info.lines.forEach(function(ln) { | ||
| fastInsert(outStream, info, ln); | ||
| }); | ||
| delete info.lines; | ||
| } | ||
| } else { // more than info.fastMaxLines | ||
| fastInsert(outStream, info, line); | ||
| } | ||
| } | ||
| }); | ||
| rl.on('close', function() { | ||
| if(info.lines && info.lines.length<info.fastMaxLines) { | ||
| fastProcessLine(info); | ||
| preparedResult = fastAnalyzeLines(info); | ||
| fastFinalize(info, outStream); | ||
| } | ||
| //console.log("preparedResult", preparedResult); | ||
| common.writeConfigYaml(common.createParams(params, preparedResult), inputBase+'.yaml'); | ||
| }); | ||
| }); | ||
| } | ||
|
|
||
| fast.doFast = doFast; | ||
| module.exports = fast; |
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