brew install osxfuse go

# FUSE installation on ubuntu, other distributions will be similar
sudo apt-get install fuse

go get -t github.com/suffuse/go-suffuse/cmd/suffuse

# Make the suffuse executable available on the path.
% export PATH=$PATH:$GOPATH/bin

# Run suffuse to get an overview of the options.
% suffuse
Usage: suffuse <options> [path path ...]

  -d=false: log at DEBUG level
  -m="": mount point
  -n="": volume name (OSX only)
  -t=false: create scratch directory as mount point
  -v=false: log at INFO level

# Create a directory to play in.
% mkdir -p ~/tmp/scratch

# Fill a file with digits 1 to 10.
% seq 1 10 > ~/tmp/scratch/seq.txt

# Create a directory that holds the mount.
% mkdir ~/mnt

# Mount a directory through suffuse.
# The `&` runs suffuse in a separate process.
% suffuse -m ~/mnt ~/tmp/scratch &
[1] 9134

# List the contents through the suffuse mount.
% ls ~/mnt
seq.txt

# It's a 10 line file, one number to a line.
% wc -l ~/mnt/seq.txt
10 /home/user/mnt/seq.txt

# Via suffuse, a derived file ending with #4,6p is a sed
# command executed on the actual file.
% cat ~/mnt/seq.txt#4,6p
4
5
6

# Arbitrary sed commands, different sized files.
% ls -l ~/mnt/seq.txt#5,10p
-rw-r--r--  1 user  user  13 Jun 30 11:57 /home/user/mnt/seq.txt#5,10p

# These files are effectively indistinguishable from "real" files.
% ls -l ~/mnt/seq.txt#1,3p
-rw-r--r--  1 user  user  6 Jun 30 11:57 /home/user/mnt/seq.txt#1,3p

% kill %1

# Continuous testing
bin/cc.sh
# Docker container works somewhat
bin/docker.sh