zerok / imagefunnel

A tiny image processing pipeline mainly for zerokspot.com

ImageFunnel: Continuous image resizing

This is a little tool checks a given S3 compatible bucket or a folder for new images and resizes them according to a set of provided profiles.

Usage

The following command will check all files in the current working directory (not recursively!) against the provided funnel profile and generate the missing ones:

$ imagefunnel  --profile profile.yaml .

The profile to be used should resize all JPEG files (unless they contain the string large) into images 500px wide if they are portrait or 1000px if they are landscape:

source:
  include:
    - ".*\\.jpe?g"
  exclude:
    - ".*large.*"
target:
  filename: "{{ .Stem }}.large.{{ .Ext }}"
  portrait_size: "500x"
  landscape_size: "1000x"

If you don't explicitly pass a folder to the command then ImageFunnel will look for the following environment variables in order to connect to an S3-compatible data store:

• IMAGEFUNNEL_S3_ENDPOINT
• IMAGEFUNNEL_S3_ACCESS_KEY_ID
• IMAGEFUNNEL_S3_SECRET_ACCESS_KEY
• IMAGEFUNNEL_S3_BUCKET