Chris Penner 0ceddd5000 Use Haskell API to run transcripts ... Trunk currently runs all of the transcripts by shelling out to the unison cli, this causes two problems: * It's slow to boot up a fresh ucm for every transcript * On Windows, we're likely to encounter [this bug](https://github.com/commercialhaskell/stack/issues/5038) which comes up when using `readProcess`, I'm noticing when I run transcripts on windows it inserts a ton of `++stty: 'standard input': Inappropriate ioctl for device` into output files. As far as speedup goes, a quick benchmark on non-optimized builds shaves off ~90 seconds! ``` New version /usr/bin/time stack exec transcripts 103.79 real 153.25 user 89.79 sys /usr/bin/time stack exec transcripts 193.79 real 183.08 user 6.97 sys ``` Implementation notes * Define `withTranscriptRunner`, which does a single initialization and then provides a transcript runner to the provided action. The caller can run any number of transcripts without re-initializing the runtime. * Rather than crash the with an `exit 1` on failure and then detect that exit code, we return an Either which can be handled as a test failure.		2022-02-24 14:51:57 -06:00
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Transcripts.hs	Use Haskell API to run transcripts	2022-02-24 14:51:57 -06:00