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spec.clj
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spec.clj
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;; Copyright © 2020-2022 Vitaly Samigullin
;;
;; This program and the accompanying materials are made available under the
;; terms of the Eclipse Public License 2.0 which is available at
;; http://www.eclipse.org/legal/epl-2.0.
;;
;; This Source Code may also be made available under the following Secondary
;; Licenses when the conditions for such availability set forth in the Eclipse
;; Public License, v. 2.0 are satisfied: GNU General Public License as published by
;; the Free Software Foundation, either version 2 of the License, or (at your
;; option) any later version, with the GNU Classpath Exception which is available
;; at https://www.gnu.org/software/classpath/license.html.
;;
;; SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
(ns pip-license-checker.spec
"Specs"
(:gen-class)
(:require
[clojure.spec.alpha :as s]
[clojure.test.check.generators :as g]))
;;
;; Specs
;;
;; (require '[pip-license-checker.spec :as sp])
;; (s/valid? ::sp/requirement "abc")
;; Versions
(s/def ::version-str string?)
(s/def ::matched-version-part (s/nilable string?))
(s/def ::non-negative-int (s/and int? (fn [n] (>= n 0))))
(s/def ::version-orig string?)
(s/def ::version-epoch ::non-negative-int)
(s/def ::version-release (s/coll-of int?))
(s/def ::opt-version-letter
(s/nilable (s/tuple string? int?)))
(s/def ::opt-version-local
(s/nilable (s/* (s/alt :letter string? :number int?))))
(s/def :version/orig ::version-orig)
(s/def :version/epoch ::version-epoch)
(s/def :version/release ::version-release)
(s/def :version/pre ::opt-version-letter)
(s/def :version/post ::opt-version-letter)
(s/def :version/dev ::opt-version-letter)
(s/def :version/local ::opt-version-local)
(s/def ::version
(s/keys :req-un
[:version/orig
:version/epoch
:version/release
:version/pre
:version/post
:version/dev
:version/local]))
(s/def ::versions
(s/nilable (s/coll-of ::version)))
;; Specifiers
(s/def ::specifier-str string?)
(s/def ::op
(s/fspec :args (s/cat :a ::version :b ::version)
:ret boolean?))
(s/def ::specifier
(s/nilable (s/tuple ::op ::version)))
(s/def ::specifiers
(s/nilable (s/coll-of ::specifier)))
;;
;; Generators
;; https://clojure.github.io/test.check/clojure.test.check.generators.html
;;
(def non-empty-str-gen
"Generator for strings of length between 3 and 20 chars"
(g/fmap #(apply str %) (g/vector g/char-alpha 3 20)))
(def version-str-gen
"Generator for PyPI version in string format"
(g/let
[epoch g/nat
use-epoch g/boolean
release-major g/nat
release-minor g/nat
use-release-minor g/boolean
release-micro g/nat
use-release-micro g/boolean
postfix-letter
(g/elements
#{"dev" "pre" "preview" "a" "b" "c" "rc" "alpha" "beta" "post" "rev"})
postfix-number g/nat
use-postfix g/boolean
local-first (g/not-empty g/string-alphanumeric)
local-second (g/not-empty g/string-alphanumeric)
use-local g/boolean]
(str
(if use-epoch (str epoch "!") "")
release-major
(if use-release-minor (str "." release-minor) "")
(if use-release-micro (str "." release-micro) "")
(if use-postfix (str "." postfix-letter postfix-number) "")
(if use-local (str "+" local-first "." local-second) ""))))
(def operators #{"<" "<=" ">" ">=" "==" "~=" "!="})
(def specifier-str-gen
"Generator for PyPI package specifier in string format"
(g/let
[op-first (g/elements operators)
version-first version-str-gen
use-second-specifier g/boolean
op-second (g/elements operators)
version-second version-str-gen]
(str
op-first
version-first
(if use-second-specifier (str "," op-second version-second) ""))))
(def requirement-str-gen
"Generator for PyPI package name with specifiers in string format"
(g/let [package non-empty-str-gen
spec specifier-str-gen]
(str package spec)))
(def requirements-str-gen
"Generator for a collection of requirement strings"
(g/vector requirement-str-gen))