go-california-landscapes

Go package to parse posts from the California Landscapes bot and create new JPEG images with embedded EXIF data derived from those posts.

Motivation

I love the California Landscapes bot and I wanted to have an archive of images that I especially liked.

Tools

$> make cli
go build -mod vendor -ldflags="-s -w" -o bin/fetch cmd/fetch/main.go

show

$> ./bin/fetch -h
Fetch one or more posts from the California Landscapes bot and create a new JPEG image with EXIF data derived from the post.
Usage:
	 ./bin/fetch [options] url(N) url(N)
Valid options are:
  -destination string
    	The destination folder where images should be written. Default is the current working directory. (default ".")
  -verbose
    	Enable verbose (debug) logging.

For example:

$> ./bin/fetch -verbose https://botsin.space/users/CALandscapeBot/statuses/112950415212901085
2024/08/31 12:34:20 DEBUG Verbose logging enabled
2024/08/31 12:34:20 DEBUG Fetch URL url=https://botsin.space/users/CALandscapeBot/statuses/112950415212901085
2024/08/31 12:34:23 DEBUG Unknown or unsupported property url=https://botsin.space/users/CALandscapeBot/statuses/112950415212901085 property=og:site_name
2024/08/31 12:34:23 DEBUG Unknown or unsupported property url=https://botsin.space/users/CALandscapeBot/statuses/112950415212901085 property=og:type
2024/08/31 12:34:23 DEBUG Unknown or unsupported property url=https://botsin.space/users/CALandscapeBot/statuses/112950415212901085 property=og:title
2024/08/31 12:34:23 DEBUG Unknown or unsupported property url=https://botsin.space/users/CALandscapeBot/statuses/112950415212901085 property=profile:username
2024/08/31 12:34:23 DEBUG Parse description string values latitude=35.2743 longitude=-118.2364 altitude=5446
2024/08/31 12:34:23 DEBUG Fetch URL url=https://files.botsin.space/media_attachments/files/112/950/413/693/134/762/original/d8a1f00c51e4acb9.jpeg
2024/08/31 12:34:25 INFO Successfully fetched image url=https://botsin.space/users/CALandscapeBot/statuses/112950415212901085 path=/usr/local/src/go-california-landscapes/112950415212901085.jpg

And then:

$> exiv2 -pa ./112950415212901085.jpg
Exif.Image.GPSTag                            Long        1  138
Exif.GPSInfo.GPSLatitude                     Rational    3  35 deg 16' 27"
Exif.GPSInfo.GPSLatitudeRef                  Ascii       2  North
Exif.GPSInfo.GPSLongitude                    Rational    3  118 deg 14' 11"
Exif.GPSInfo.GPSLongitudeRef                 Ascii       2  West
Exif.GPSInfo.GPSAltitude                     Rational    1  1659 m
Exif.Image.DateTimeOriginal                  Ascii      20  2024:08:12 18:16:00
Exif.Image.ImageID                           Ascii      56  https://botsin.space/@CALandscapeBot/112950415212901085
Exif.Image.ExifTag                           Long        1  260
Exif.Photo.ImageUniqueID                     Ascii     106  https://files.botsin.space/media_attachments/files/112/950/413/693/134/762/original/d8a1f00c51e4acb9.jpeg

Of, if you upload the image to Flickr and you have both the settings to read EXIF data and automatically geotag your photos enabled you'll see something like this:

Or:

To do

The following tasks are on my "to do" list in no particular order and with no expected timeline. Any help or pull requests are welcome:

• Make it possible to run this as a AWS Lambda function.

• Use the gocloud.dev/blob abstraction layer to write files to both the local file system and remote storage platforms.

• Add the ability to post images directly to Flickr.

• Figure out what value(s) I need to pass to the dsoprea/go-exif package in order to write GPSAltitudeRef tags.

See also

• https://botsin.space/@CALandscapeBot
• https://github.com/sfomuseum/go-exif-update
• https://github.com/dsoprea/go-exif
• https://github.com/anaskhan96/soup