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Parallel handling

Gaze deals with multiple processes nicely.

The simplest case

  1. You update a.py
  2. Gaze invokes python a.py
  3. python a.py finishes

p01

No controversial point.

Update twice in a row

In case you update a.py again during the first process stays running,

  • Gaze waits until the first process finishes.
  • Right after the first process finished, a second process launches.

p02

Since a.py was modified after the first python a.py launched, running python a.py again after the first process finished is a natural behavior.

Update more than twice in a row

In case you update a.py multiple times during the first process stays running,

  • Gaze waits until the first process finishes.
  • Right after the first process finished, a second process launches.
  • (Gaze does NOT launch third process)

p03

Note that Gaze doesn't invoke the third process in this case. Since there is no update after the second launch, not invoking a third process is natural behavior as a development purpose tool.

Update multiple files

Gaze deals with multiple processes nicely.

In case you update another file during the first process stays running, what should occur? Gaze runs a second process in parallel.

p04

Since you may develop multiple files and one might keep running for a long time, this is also natural behavior as a development purpose command.

Update multiple files but run one command

There is a case Gaze runs the same command even when different files are updated. In this case, Gaze invokes the same command make when any .go file was updated.

gaze -c make '*.go'

What should happen when you update multiple *.go files during the first make stays running? The Gaze's answer is below.

p05

Gaze manages processes by commands, NOT files. Since the same command is specified for any files, Gaze waits until the first make finished in this case. Right after the first make finished, the next make launches.