Replace date with perl to fix get_time() on macOS #97
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The BSD date on macOS doesn't support %N. It just prints a literal N (e.g. '1738285044.N'), which breaks the awk command in get_cache_val(), stopping cached values from being updated. Instead, I found this perl command at [1]. Tested on macOS, Arch Linux, and OpenWRT (which has a minimal perl distribution. By the way, BusyBox date doesn't support %N either but it just prints e.g. '1738285044.' without an 'N'. So while the awk command works, [2] didn't really improve the time precision here). [1] https://apple.stackexchange.com/a/359718/254536 [2] https://github.com/tmux-plugins/tmux-cpu/pull/56/files#diff-e015cc3ac522b202bb23852488a7ac2c019e2c82568ecb387b97b60ebbecdf4bR72-R74
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The BSD date on macOS doesn't support %N. It just prints a literal N (e.g. '1738285044.N'), which breaks the awk command in get_cache_val(), stopping cached values from being updated.
Instead, I found this perl command at [1]. Tested on macOS, Arch Linux, and OpenWRT (which has a minimal perl distribution. By the way, BusyBox date doesn't support %N either but it just prints e.g. '1738285044.' without an 'N'. So while the awk command works, [2] didn't really improve the time precision here).
[1] https://apple.stackexchange.com/a/359718/254536
[2] https://github.com/tmux-plugins/tmux-cpu/pull/56/files#diff-e015cc3ac522b202bb23852488a7ac2c019e2c82568ecb387b97b60ebbecdf4bR72-R74