334 lines
11 KiB
Scheme
334 lines
11 KiB
Scheme
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; semver.scm
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;; Copyright (C) 2026 Cor Legemaat <cor@cor.za.net>
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;;
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;; This file is part of ebuild-autogen: you can redistribute it and/or modify it
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;; under the terms of the GNU Affero General Public License as published by the
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;; Free Software Foundation, version 3 of the License.
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;;
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;; ebuild-autogen is distributed in the hope that it will be useful, but WITHOUT
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;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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;; more details.
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;;
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;; You should have received a copy of the GNU General Public License along with
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;; ebuild-autogen. If not, see <https://www.gnu.org/licenses/>.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(define-module (ebuild semver)
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#:use-module (rx irregex)
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#:use-module (ice-9 pretty-print)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-13)
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#:use-module (rnrs sorting))
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;; https://semver.org/
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(define-public semver->irregex-match
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(lambda (version)
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""
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(irregex-search
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'(seq (+ (or "." bos) (+ num))
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(? (seq "-" (+ alphanum) (* "." (+ num))))
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(look-ahead (or (seq "+" (+ (or alphanum "-")) eos)
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(seq (+ space) eos)
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eos)))
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;; Strip leading spaces.
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(if (string=? version "")
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version
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(substring version
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(string-skip version #\space))))))
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;;TODO make match keyworded parm to use value from fetch and skip an regex
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;; per release.
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(define-public semver->comps
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(lambda* (version #:key (vers-match (semver->irregex-match version)))
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""
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(if vers-match
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(filter-map (lambda (component)
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(cond ((string=? component "") #f)
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((string=? component "p") -1)
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((string=? component "rc") -2)
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((string=? component "pre") -3)
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((string=? component "beta") -4)
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((string=? component "alpha") -5)
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((not (string-every char-numeric? component))
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component)
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(else (string->number component))))
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(irregex-extract '(or (seq (look-behind (or bos "."))
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(+ num))
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(seq (look-behind "-")
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(+ alphanum)))
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(irregex-match-substring vers-match)))
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'())))
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(define-public comps->semver
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(lambda* (comps)
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""
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(string-drop
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(string-join (map (lambda (comp)
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(case comp
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((-1) "-p")
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((-2) "-rc")
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((-3) "-pre")
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((-4) "-beta")
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((-5) "-alpha")
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(else (string-append "."
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(if (string? comp)
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comp
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(number->string comp))))))
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comps)
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"")
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1)))
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(define-public comps->genver
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(lambda* (comps #:key (comp-prefix ""))
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""
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(if (or (null? comps)
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(string? (car comps)))
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""
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(string-append
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(if (and (number? (car comps))
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(negative? (car comps)))
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""
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comp-prefix)
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(case (car comps)
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((-1) "_p")
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((-2) "_rc")
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((-3) "_pre")
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((-4) "_beta")
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((-5) "_alpha")
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(else (if (number? (car comps))
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(number->string (car comps))
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"")))
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(comps->genver (if (or (not (negative? (car comps)))
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(null? (cdr comps)))
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(cdr comps)
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(if (and (number? (cadr comps))
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(positive? (cadr comps)))
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(list (cadr comps))
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'()))
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#:comp-prefix (if (negative? (car comps))
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""
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"."))))))
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(define-public semver-keep
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(lambda* (versions keep #:key
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(current-path '()))
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""
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(let* ((unique-comps (delete-duplicates (map (lambda (rel)
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(if (null? rel)
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0
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(car rel)))
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versions)))
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(my-quant (if (null? keep) 1 (car keep)))
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(my-values (if (> (length unique-comps) my-quant)
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(take (list-sort
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(lambda (a b)
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(cond ((and (string? a) (number? b)) #f)
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((and (number? a) (string? b)) #t)
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((and (string? a) (string? b))
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(string> a b))
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(else (> a b)))) unique-comps)
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my-quant)
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unique-comps)))
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(if (every null? versions)
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(list current-path)
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(append-map
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(lambda (comp)
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(semver-keep (filter-map (lambda (rel)
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(if (eq? (if (null? rel) 0 (car rel))
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comp)
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(if (null? rel) '() (cdr rel))
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#f))
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versions)
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(if (null? keep)
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'()
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(cdr keep))
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#:current-path (append current-path (list comp))))
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my-values)))))
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(define-public semver-stable?
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(lambda (vers)
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""
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(every (lambda (comp)
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(and (number? comp)
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(not (negative? comp))))
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vers)))
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(define-public semver-eq?
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(lambda* (ref test #:key (cc (length ref)))
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""
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(let ((ref-val (if (null? ref) 0 (car ref)))
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(test-val (if (null? test) 0 (car test))))
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(cond ((and (null? ref) (null? test)) #t)
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((and (positive? cc)
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(not (eqv? ref-val test-val)))
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#f)
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((zero? cc) #t)
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((and (string? ref-val) (number? test-val)) #f)
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((and (number? ref-val) (string? test-val)) #t)
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((and (string? ref-val)
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(string? test-val)
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(not (string=? ref-val test-val)))
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#f)
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(else (semver-eq? (if (null? ref) '() (cdr ref))
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(if (null? test) '() (cdr test))
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#:cc (if (positive? cc)
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(1- cc)
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0)))))))
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(define-public semver-less?
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(lambda* (ref test #:key (cc 0))
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""
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(let ((ref-val (if (null? ref) 0 (car ref)))
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(test-val (if (null? test) 0 (car test))))
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(cond ((and (null? ref) (null? test)) #f)
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((and (positive? cc)
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(not (eqv? ref-val test-val)))
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#f)
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((and (number? ref-val)
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(number? test-val)
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(< ref-val test-val)) #t)
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((and (number? ref-val)
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(number? test-val)
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(> ref-val test-val)) #f)
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((and (string? ref-val) (number? test-val)) #t)
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((and (string? ref-val)
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(string? test-val)
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(string<? ref-val test-val)) #t)
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(else (semver-less? (if (null? ref) '() (cdr ref))
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(if (null? test) '() (cdr test))
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#:cc (if (positive? cc)
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(1- cc)
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0)))))))
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(define-public semver-leq?
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(lambda* (ref test #:key (cc 0))
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""
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(let ((ref-val (if (null? ref) 0 (car ref)))
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(test-val (if (null? test) 0 (car test))))
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(cond ((and (null? ref) (null? test)) #t)
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((and (positive? cc)
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(not (eqv? ref-val test-val)))
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#f)
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((and (number? ref-val)
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(number? test-val)
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(< ref-val test-val)) #t)
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((and (number? ref-val)
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(number? test-val)
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(> ref-val test-val)) #f)
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((and (string? ref-val) (number? test-val)) #t)
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((and (string? ref-val)
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(string? test-val)
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(string<=? ref-val test-val)) #t)
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(else (semver-leq? (if (null? ref) '() (cdr ref))
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(if (null? test) '() (cdr test))
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#:cc (if (positive? cc)
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(1- cc)
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0)))))))
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(define-public semver-gr?
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(lambda* (ref test #:key (cc 0))
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""
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(let ((ref-val (if (null? ref) 0 (car ref)))
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(test-val (if (null? test) 0 (car test))))
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(cond ((and (null? ref) (null? test)) #f)
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((and (positive? cc)
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(not (eqv? ref-val test-val)))
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#f)
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((and (number? ref-val)
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(number? test-val)
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(> ref-val test-val)) #t)
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((and (number? ref-val)
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(number? test-val)
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(< ref-val test-val)) #f)
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((and (number? ref-val) (string? test-val)) #t)
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((and (string? ref-val)
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(string? test-val)
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(string>? ref-val test-val)) #t)
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(else (semver-gr? (if (null? ref) '() (cdr ref))
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(if (null? test) '() (cdr test))
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#:cc (if (positive? cc)
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(1- cc)
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0)))))))
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(define-public semver-geq?
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(lambda* (ref test #:key (cc 0))
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""
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(let ((ref-val (if (null? ref) 0 (car ref)))
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(test-val (if (null? test) 0 (car test))))
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(cond ((and (null? ref) (null? test)) #t)
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((and (positive? cc)
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(not (eqv? ref-val
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test-val)))
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#f)
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((and (number? ref-val)
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(number? test-val)
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(> ref-val test-val)) #t)
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((and (number? ref-val)
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(number? test-val)
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(< ref-val test-val)) #f)
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((and (number? ref-val) (string? test-val)) #t)
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((and (string? ref-val)
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(string? test-val)
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(string>=? ref-val test-val)) #t)
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(else (semver-geq? (if (null? ref) '() (cdr ref))
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(if (null? test) '() (cdr test))
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#:cc (if (positive? cc)
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(1- cc)
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0)))))))
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(define-public semver-constrain
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(lambda* (releases constraints #:key
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(allow-unfiletered #f)
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(prefer-stable-only #t))
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""
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(let* ((releases-usable
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(filter-map
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(lambda (rel)
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(if (every (lambda (const)
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(cond ((and (null? (assoc-ref const 'type))
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(eq? (assoc-ref const 'slot-level) 0))
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#t)
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((eq? (assoc-ref const 'type) '=)
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(semver-eq? (assoc-ref rel "version-values")
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(assoc-ref const 'components)
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#:cc (assoc-ref const 'slot-level)))
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((eq? (assoc-ref const 'type) '<=)
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(semver-geq? (assoc-ref rel "version-values")
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(assoc-ref const 'components)))
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((eq? (assoc-ref const 'type) '<=)
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(semver-leq? (assoc-ref rel "version-values")
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(assoc-ref const 'components)))
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((eq? (assoc-ref const 'type) '>)
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(semver-gr? (assoc-ref rel "version-values")
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(assoc-ref const 'components)))
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((eq? (assoc-ref const 'type) '<)
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(semver-less? (assoc-ref rel "version-values")
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(assoc-ref const 'components)))
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(else #f)))
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constraints)
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rel #f))
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releases))
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(releases-stable
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(filter-map (lambda (rel)
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(if (semver-stable? (assoc-ref rel "version-values"))
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rel #f))
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releases-usable))
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(answ (sort (if (or (null? releases-stable)
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(not prefer-stable-only))
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(if (null? releases-usable)
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(if (or (null? releases)
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(not allow-unfiletered))
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'()
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releases)
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releases-usable)
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releases-stable)
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(lambda (a b)
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(semver-gr? (assoc-ref a "version-values")
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(assoc-ref b "version-values"))))))
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;; (display "all-releases:") (newline) (pretty-print releases)
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;; (display "releases:") (newline) (pretty-print releases-usable)
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;; (display "stable-releases:") (newline) (pretty-print releases-stable)
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;; (display "ret:") (newline) (pretty-print answ)
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answ)))
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