https://gist.github.com/FeepingCreature/6c67479c99bc0f20544d1e455622ae82
Usage: DMD=<path> progress-dmd <args>
The script sets -v and then uses the code and semantic stages
logged in the output to paint a cute little ANSI-colored progress
bar, with one character for every file listed on the command line.
Problems:
- lots of time spent in function compilation cannot be cleanly
attributed to a source module
- sometimes with very long progress bars, regular compiler
output can leave pieces of progress bar behind
- colored progress bar painting is surprisingly hard
