added plugins

This commit is contained in:
Jan Prochazka
2021-04-13 16:17:53 +02:00
parent 446e7c139f
commit 4d5cc119f2
115 changed files with 5519 additions and 24 deletions

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MIT License
Copyright (c) 2021 Jan Prochazka
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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[![styled with prettier](https://img.shields.io/badge/styled_with-prettier-ff69b4.svg)](https://github.com/prettier/prettier)
[![Donate](https://img.shields.io/badge/donate-paypal-blue.svg)](https://paypal.me/JanProchazkaCz/30eur)
[![NPM version](https://img.shields.io/npm/v/dbgate-plugin-csv.svg)](https://www.npmjs.com/package/dbgate-plugin-csv)
# dbgate-plugin-csv
CSV import/export plugin for DbGate
## Usage without DbGate
Export from fake object reader into CSV file. Fake object file can be replaced with other reader/writer factory functions, as described in
[dbgate-api package](https://www.npmjs.com/package/dbgate-api)
```javascript
const dbgateApi = require('dbgate-api');
const dbgatePluginCsv = require("dbgate-plugin-csv");
dbgateApi.registerPlugins(dbgatePluginCsv);
async function run() {
const reader = await dbgateApi.fakeObjectReader();
const writer = await dbgatePluginCsv.shellApi.writer({ fileName: 'myfile1.csv', separator: ';' });
await dbgateApi.copyStream(reader, writer);
console.log('Finished job script');
}
dbgateApi.runScript(run);
```
## Factory functions
### shellApi.reader
Reads CSV file
```js
const dbgatePluginCsv = require("dbgate-plugin-csv");
const reader = await dbgatePluginCsv.shellApi.reader({
fileName: 'test.csv',
encoding: 'utf-8',
header: true,
delimiter: ',',
quoted: false,
limitRows: null
});
```
### shellApi.writer
Writes CSV file
```js
const dbgatePluginCsv = require("dbgate-plugin-csv");
const writer = await dbgatePluginCsv.shellApi.writer({
fileName: 'test.csv',
encoding: 'utf-8',
header: true,
delimiter: ',',
quoted: false
});
```

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{
"name": "dbgate-plugin-csv",
"main": "dist/backend.js",
"version": "1.0.9",
"homepage": "https://github.com/dbgate/dbgate-plugin-csv",
"description": "CSV import/export plugin for DbGate",
"repository": {
"type": "git",
"url": "https://github.com/dbgate/dbgate-plugin-csv.git"
},
"funding": "https://www.paypal.com/paypalme/JanProchazkaCz/30eur",
"author": "Jan Prochazka",
"license": "GPL",
"keywords": [
"csv",
"import",
"export",
"dbgate",
"dbgateplugin"
],
"files": [
"dist"
],
"scripts": {
"build:frontend": "webpack --config webpack-frontend.config",
"build:backend": "webpack --config webpack-backend.config.js",
"build": "yarn build:frontend && yarn build:backend",
"plugin": "yarn build && yarn pack && dbgate-plugin dbgate-plugin-csv",
"plugout": "dbgate-plugout dbgate-plugin-csv",
"prepublishOnly": "yarn build"
},
"devDependencies": {
"csv": "^5.3.2",
"dbgate-plugin-tools": "^1.0.4",
"lodash": "^4.17.20",
"webpack": "^4.42.0",
"webpack-cli": "^3.3.11"
}
}

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module.exports = {
trailingComma: 'es5',
tabWidth: 2,
semi: true,
singleQuote: true,
arrowParen: 'avoid',
printWidth: 120,
};

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const reader = require('./reader');
const writer = require('./writer');
module.exports = {
packageName: 'dbgate-plugin-csv',
shellApi: {
reader,
writer,
},
initialize(dbgateEnv) {
reader.initialize(dbgateEnv);
},
};

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const zipObject = require('lodash/zipObject');
const csv = require('csv');
const fs = require('fs');
const stream = require('stream');
let dbgateApi;
class CsvPrepareStream extends stream.Transform {
constructor({ header }) {
super({ objectMode: true });
this.structure = null;
this.header = header;
}
_transform(chunk, encoding, done) {
if (this.structure) {
this.push(
zipObject(
this.structure.columns.map((x) => x.columnName),
chunk
)
);
done();
} else {
if (this.header) {
this.structure = {
__isStreamHeader: true,
columns: chunk.map((columnName) => ({ columnName })),
};
this.push(this.structure);
} else {
this.structure = {
__isStreamHeader: true,
columns: chunk.map((value, index) => ({ columnName: `col${index + 1}` })),
};
this.push(this.structure);
this.push(
zipObject(
this.structure.columns.map((x) => x.columnName),
chunk
)
);
}
done();
}
}
}
async function reader({ fileName, encoding = 'utf-8', header = true, delimiter, limitRows = undefined }) {
console.log(`Reading file ${fileName}`);
const csvStream = csv.parse({
// @ts-ignore
delimiter,
skip_lines_with_error: true,
to_line: limitRows ? limitRows + 1 : undefined,
});
const downloadedFile = await dbgateApi.download(fileName);
const fileStream = fs.createReadStream(downloadedFile, encoding);
const csvPrepare = new CsvPrepareStream({ header });
fileStream.pipe(csvStream);
csvStream.pipe(csvPrepare);
return csvPrepare;
}
reader.initialize = (dbgateEnv) => {
dbgateApi = dbgateEnv.dbgateApi;
};
module.exports = reader;

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const csv = require('csv');
const fs = require('fs');
const stream = require('stream');
class CsvPrepareStream extends stream.Transform {
constructor({ header }) {
super({ objectMode: true });
this.structure = null;
this.header = header;
}
_transform(chunk, encoding, done) {
if (this.structure) {
this.push(this.structure.columns.map((col) => chunk[col.columnName]));
done();
} else {
this.structure = chunk;
if (this.header) {
this.push(chunk.columns.map((x) => x.columnName));
}
done();
}
}
}
async function writer({ fileName, encoding = 'utf-8', header = true, delimiter, quoted }) {
console.log(`Writing file ${fileName}`);
const csvPrepare = new CsvPrepareStream({ header });
const csvStream = csv.stringify({ delimiter, quoted });
const fileStream = fs.createWriteStream(fileName, encoding);
csvPrepare.pipe(csvStream);
csvStream.pipe(fileStream);
csvPrepare['finisher'] = fileStream;
return csvPrepare;
}
module.exports = writer;

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const fileFormat = {
packageName: 'dbgate-plugin-csv',
// file format identifier
storageType: 'csv',
// file extension without leading dot
extension: 'csv',
// human readable file format name
name: 'CSV',
// function name from backend, which contains reader factory, postfixed by package name
readerFunc: 'reader@dbgate-plugin-csv',
// function name from backend, which contains writer factory, postfixed by package name
writerFunc: 'writer@dbgate-plugin-csv',
// optional list of format arguments, which can be edited from UI
args: [
{
type: 'select',
name: 'delimiter',
label: 'Delimiter',
options: [
{ name: 'Comma (,)', value: ',' },
{ name: 'Semicolon (;)', value: ';' },
{ name: 'Tab', value: '\t' },
{ name: 'Pipe (|)', value: '|' },
],
apiName: 'delimiter',
},
{
type: 'checkbox',
name: 'quoted',
label: 'Quoted',
apiName: 'quoted',
direction: 'target',
},
{
type: 'checkbox',
name: 'header',
label: 'Has header row',
apiName: 'header',
default: true,
},
],
};
export default {
fileFormats: [fileFormat],
};

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var webpack = require('webpack');
var path = require('path');
var config = {
context: __dirname + '/src/backend',
entry: {
app: './index.js',
},
target: 'node',
output: {
path: path.resolve(__dirname, 'dist'),
filename: 'backend.js',
libraryTarget: 'commonjs2',
},
// uncomment for disable minimalization
// optimization: {
// minimize: false,
// },
};
module.exports = config;

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var webpack = require("webpack");
var path = require("path");
var config = {
context: __dirname + "/src/frontend",
entry: {
app: "./index.js",
},
target: "web",
output: {
path: path.resolve(__dirname, "dist"),
filename: "frontend.js",
libraryTarget: "var",
library: 'plugin',
},
// uncomment for disable minimalization
// optimization: {
// minimize: false,
// },
};
module.exports = config;