zip Plugin

Linux

Download the precompiled plugin files under the DolphinDBPlugin/zip/bin/linux64 directory (make sure to switch to the correct branch). Save the files under /DolphinDB/server/plugins/zip in your local system.

Install CMake

sudo apt install cmake

Compile plugin

mkdir build
cd build
cp /path_to_dolphindb/libDolphinDB.so ../lib
cmake ..
make -j

After compilation, the file libPluginZip.so is generated under the build directory.

Load the plugin in DolphinDB with the following command:

loadPlugin("/path_to_pluginZip/PluginZip.txt");

Syntax

zip::unzip(zipFileName, outputDir, callback)

Arguments

• zipFileName: a string indicating the absolute path to the ZIP file.
• outputDir: a string indicating the absolute path the file will be extracted to. If it is unspecified or specified as "", the ZIP file will be extracted to its current directory. Note that existing files with the same name under the directory will be replaced.
• callback (optional): a callback function for handling the unzipped file. It only takes one argument of STRING type.

Details

Extract files from a ZIP file. Return a string vector indicating the file paths to the extracted files. Optionally, specify a callback function to process the extracted files. The callback is executed each time a member file is extracted for optimal performance.

Examples

filenames = zip::unzip("/path_to_zipFile/test.zip", "/path_to_output/", func);

print(filenames)
["/path_to_output/test.csv"]