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(define-module (hnh test util)
:use-module ((hnh util) :select (begin1))
:use-module ((hnh util io) :select (call-with-tmpfile))
:use-module (ice-9 pretty-print)
:use-module ((ice-9 rdelim) :select (read-string))
:use-module ((ice-9 popen)
:select (open-pipe*
close-pipe))
:export (µs
transform-time-of-day
green
red
yellow
bold
make-indent
string-replace-head
diff
))
(define (µs x)
(* x #e1e6))
(define (transform-time-of-day tod)
(+ (* (µs 1) (car tod))
(cdr tod)))
(define (escaped sequence string)
(format #f "\x1b[~am~a\x1b[m" sequence string))
;; Terminal output formatting. Doesn NOT compose
(define (green s) (escaped 32 s))
(define (red s) (escaped 31 s))
(define (yellow s) (escaped 33 s))
(define (bold s) (escaped 1 s))
(define (make-indent depth)
(make-string (* 2 depth) #\space))
(define (string-replace-head s1 s2)
(string-replace s1 s2
0 (string-length s2)))
(define diff-cmd
;; '("diff")
'("git" "diff" "--no-index" "--color-moved=default" "--color=always"; "--word-diff=color"
)
)
(define (diff s1 s2)
(let ((filename1 (call-with-tmpfile (lambda (p f) (pretty-print s1 p display?: #t) f)))
(filename2 (call-with-tmpfile (lambda (p f) (pretty-print s2 p display?: #t) f))))
(let ((pipe (apply open-pipe*
OPEN_READ
(append diff-cmd (list filename1 filename2)))))
(begin1 (read-string pipe)
(close-pipe pipe)))))
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