justinsantoro / lambdev Goto Github PK

Currently lambdev only works in Python2.7 due to cStringIO not being available in python3.

Relevant code: core.py

def zipit():
    buf = cStringIO.StringIO()
    with zipfile.ZipFile(buf, 'w') as ziph:
        for f in files:
            ziph.write(f, basename(f))
    buf.seek(0)
    return buf.read()

A feature to avoid uploading to AWS each time to test.

Amazon is working on allowing the testing of lambda functions locally with SAM CLI which depends on docker-lambda.

SAM CLI is in beta and is poorly documented, may be best to write own wrapper around docker-lambda.

containerized testing of file parsing and zipping and python version compatability

• catch boto 3 errors and provide more helpful error messages
• catch missing lambdevignore.txt file
• catch missing function_name.txt file

• Detect project runtime
• Determine required third party packages
• Install packages into deployment package directory
• Copy project files into deployment package directory

This could be done in a similar manner to Dockter
(ie If python project, use pip to install packages in requirements.txt)

There is a problem with acquiring the root directory of the project file. After the directory is zipped, the working directory is within the last directory that was parsed through for zipping and the root of the project is lost.

Maybe just store the root at import if it does not already exist in a file on first run.