crunch
The crunch command performs compression of .png and .jpg files. You can perform your compression from any directory inside your Octopress site. It is not necessary for the images directory to be the working directory when you run the command.
Usage
oc crunch (--option) <filename substring>Dependencies
PNG compression requires advpng. JPG compression requires jpegtran.
Arguments
| Argument | Description |
|---|---|
| image filename substring | a substring in the image filename |
Mandatory Switches
| Option | Description |
|---|---|
| --jpg | Compress .jpg file |
| --png | Compress .png file |
Options
| Option | Description |
|---|---|
| -a | --all | Compress all files in directory (png only) |
| -f | --file | Specify full filepath (instead of substring search) |
Examples
Compression of 'beach.jpg'
oc crunch --jpg beachCompression of 'beach.png'
oc crunch --png beachCompress all .png files in directory
oc crunch --png --allCompress file by specifying full filename
oc crunch --png -f beach.pngNotes
The -f (or --file) option allows you to specify the exact filename in order to prevent multiple file matches with the substring matching pattern *your-substring*.png that is used with the default command.
Here's an example:
You have the files big-octopus.png and big-octopus-2.png. If you use the default command and attempt to match the former file, you will always match the latter file as well because the match is performed with the pattern *big-octopus*.png. The solution is to use the -f switch with big-octopus.png as the argument.