Use watchman:

https://facebook.github.io/watchman/

https://github.com/facebook/watchman

Process tree and IO visualization (currently in YAML)

Port to D for better performance.

Test on Linux for Windows 10 (does it support strace and inotify?)

Add optional support for more robust tracing with ltrace. Reduce env deps by catching all getenv.

Store git repo URL for sets of files in a tree-like format in rw_list file in cache

Implement a memoization server using inotify

Fix crash when building ~/Work/dmd

Cache stdout and stderr

current time before call to strace and the modtime for each input after

use to more safely remove written files in opened (potential input)

Reuse watchman here to faster discard directories that have are

but whose content haven't changed.

Lookup command and list of inputs from output artifact

Activate checking of access inputs

Warn about certain output paths?

Warn when inputs and outputs

Save and load

Zero exist codes in calls to sys.exit()

How to handle stat mtime on input dirs where output files are written?

Update modification times in cache if they are same as written file

Add env argument to memoized_run and use it instead of os.environ._data if set

Detect file system race conditions in child processes

Ask on StackExchange if there's a flag to strace to not show failing calls

Ask Claes Wallin how to fingerprint the Linux kernel version or distribution

/proc/version

/proc/mounts

Use gcc -pipe

Add git origin (repo:commit) to input files and sort them on git repo origin

rel_path_file_a

rel_path_file_b

Parse 'st_mtime using Python's datetime.strptime(some_string, '')

Directory chash is chash of list of file names in directory

add server that does inotify watches for all dirs containing input and

files

Add automatic distribution of execution via chroot. System libs and programs can be hard-linked out read-only from cache