[decimal] Add support for decimal.js package

decimal/README.md

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+# cljsjs/decimal
+
+[](dependency)
+```clojure
+[cljsjs/decimal "10.2.0-0"] ;; latest release
+```
+[](/dependency)
+
+This jar comes with `deps.cljs` as used by the [Foreign Libs][flibs] feature
+of the ClojureScript compiler. After adding the above dependency to your project
+you can require the packaged library like so:
+
+```clojure
+(ns application.core
+  (:require cljsjs.decimal))
+```
+
+This package also supports `:global-exports`:
+
+```clojure
+(ns application.core
+  (:require ["decimal.js" :as decimal]))
+```
+
+The library is similar to [bignumber.js][bignumber], but here precision is
+specified in terms of significant digits rather than decimal places, and all
+calculations are rounded to the precision (similar to Python's decimal module)
+rather than just those involving division.
+
+This library also adds the trigonometric functions, among others, and supports
+non-integer powers, which makes it a significantly larger library than
+[bignumber.js][bignumber] and the even smaller [big.js][big].
+
+Example usage from Clojurescript:
+
+```clojure
+(ns example.core
+  (:require ["decimal.js" :as decimal]))
+
+(extend-type decimal
+  IEquiv
+  (-equiv [this other]
+    (.equals this other)))
+
+(let [x (decimal. 123.4567)
+      y (decimal. "123456.7e-3")
+      z (decimal. x)]
+  (= x y z))
+;; => true
+```
+
+[flibs]: https://clojurescript.org/reference/packaging-foreign-deps
+[bignumber]: https://github.com/MikeMcl/bignumber.js/
+[big]: https://github.com/MikeMcl/big.js/

decimal/boot-cljsjs-checksums.edn

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+{"cljsjs/decimal/development/decimal.inc.js"
+ "D836AD18A62A9901385A09457286F1A4",
+ "cljsjs/decimal/production/decimal.min.inc.js"
+ "D9A9AE5A5F6D464B9DC73E64624F21E4"}

decimal/build.boot

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+(set-env!
+  :resource-paths #{"resources"}
+  :dependencies '[[cljsjs/boot-cljsjs "0.10.5" :scope "test"]])
+
+(require '[cljsjs.boot-cljsjs.packaging :refer :all])
+
+(def +lib-version+ "10.2.0")
+(def +version+ (str +lib-version+ "-0"))
+
+(task-options!
+ push {:ensure-clean false}
+ pom  {:project     'cljsjs/decimal
+       :version     +version+
+       :description "An arbitrary-precision Decimal type for JavaScript."
+       :url         "http://mikemcl.github.io/decimal.js"
+       :license     {"MIT" "http://opensource.org/licenses/MIT"}
+       :scm         {:url "https://github.com/cljsjs/packages"}})
+
+(deftask build-decimal []
+  (run-commands :commands [["npm" "install" "--include-dev"]
+                           ["npm" "run" "bundle"]
+                           ["npm" "run" "generate-extern"]
+                           ["rm" "-rf" "./node_modules"]]))
+
+(deftask package []
+  (comp
+   (build-decimal)
+   (sift :move {#".*decimal.bundle.js" "cljsjs/decimal/development/decimal.inc.js"
+                #".*decimal.ext.js" "cljsjs/decimal/common/decimal.ext.js"})
+   (minify :in  "cljsjs/decimal/development/decimal.inc.js"
+           :out "cljsjs/decimal/production/decimal.min.inc.js")
+   (sift :include #{#"^cljsjs"})
+   (deps-cljs :provides ["decimal.js", "cljsjs.decimal"]
+              :requires []
+              :global-exports '{decimal.js Decimal
+                                cljsjs.decimal Decimal})
+   (pom)
+   (jar)
+   (validate-checksums)))

decimal/resources/package.json

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+{
+    "name": "decimal.js",
+    "homepage": "https://github.com/MikeMcl/decimal.js",
+    "bugs": "https://github.com/MikeMcl/decimal.js/issues",
+    "description": "An arbitrary-precision Decimal type for JavaScript.",
+    "version": "10.2.0",
+    "keywords": [
+        "arbitrary",
+        "precision",
+        "arithmetic",
+        "big",
+        "number",
+        "decimal",
+        "float",
+        "biginteger",
+        "bigdecimal",
+        "bignumber",
+        "bigint",
+        "bignum"
+    ],
+    "repository" : {
+        "type": "git",
+        "url": "https://github.com/MikeMcl/decimal.js.git"
+    },
+    "author": {
+        "name": "Michael Mclaughlin",
+        "email": "M8ch88l@gmail.com"
+    },
+    "license": "MIT",
+    "dependencies": {
+        "decimal.js": "^10.2.0"
+    },
+    "devDependencies": {
+        "cross-env": "^3.1.4",
+        "browserify": "^15.1.0",
+        "externs-generator": "^0.3.3"
+    },
+    "scripts": {
+        "bundle": "cross-env NODE_ENV=production browserify ./node_modules/decimal.js/decimal.js -s Decimal -o decimal.bundle.js",
+        "generate-extern": "generate-extern -f decimal.bundle.js -n Decimal -o decimal.ext.js"
+    }
+}