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ui: Have 'guix help' stat less.

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This reduces the number of syscalls for:

  env -i $(type -P strace) -c $(type -P guix) help

from 4.3K to 2.2K, thereby reducing startup time.

Reported by Julien Lepiller.

* guix/ui.scm (run-guix-command): Move %FILE-PORT-NAME-CANONICALIZATION
to...
(run-guix): ... here.
This commit is contained in:
Ludovic Courtès 2021-06-28 22:52:16 +02:00
parent e059adcb60
commit ab37731a8d
No known key found for this signature in database
GPG Key ID: 090B11993D9AEBB5
1 changed files with 32 additions and 32 deletions
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8
guix/ui.scm
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@ -2139,8 +2139,6 @@ found."
(let ((command-main (module-ref module
(symbol-append 'guix- command))))
(parameterize ((program-name command))
;; Disable canonicalization so we don't don't stat unreasonably.
(with-fluids ((%file-port-name-canonicalization #f))
(dynamic-wind
(const #f)
(lambda ()
@ -2148,7 +2146,7 @@ found."
(lambda ()
;; Abuse 'exit-hook' (which is normally meant to be used by the
;; REPL) to run things like profiling hooks upon completion.
(run-hook exit-hook)))))))
(run-hook exit-hook))))))
(define (run-guix . args)
"Run the 'guix' command defined by command line ARGS.
@ -2160,6 +2158,8 @@ and signal handling have already been set up."
;; number of 'stat' calls per entry in %LOAD-PATH. Shamelessly remove it.
(set! %load-extensions '(".scm"))
;; Disable canonicalization so we don't don't stat unreasonably.
(with-fluids ((%file-port-name-canonicalization #f))
(match args
(()
(format (current-error-port)
@ -2181,7 +2181,7 @@ and signal handling have already been set up."
((command args ...)
(apply run-guix-command
(string->symbol command)
args))))
args)))))
(define (guix-main arg0 . args)
(initialize-guix)