[#263] add yaml library

README.md

@@ -225,7 +225,8 @@ enumerated explicitly.
 - [`clojure.data.csv`](https://github.com/clojure/data.csv) aliased as `csv`
 - [`cheshire.core`](https://github.com/dakrone/cheshire) aliased as `json`
 - [`cognitect.transit`](https://github.com/cognitect/transit-clj) aliased as `transit`
-- [`bencode.core`](https://github.com/nrepl/bencode) aliased as `bencode`: `read-bencode`, `write-bencode`.
+- [`clj-yaml.core`](https://github.com/clj-commons/clj-yaml) alias as `yaml`
+- [`bencode.core`](https://github.com/nrepl/bencode) aliased as `bencode`: `read-bencode`, `write-bencode`
 
 A selection of java classes are available, see `babashka/impl/classes.clj`.
 

deps.edn

@@ -9,9 +9,8 @@
         org.clojure/data.csv {:mvn/version "1.0.0"},
         cheshire {:mvn/version "5.10.0"}
         fipp {:mvn/version "0.6.22"}
-        com.cognitect/transit-clj {:mvn/version "1.0.324"}
+        clj-commons/clj-yaml {:mvn/version "0.7.1"}
-        ;; nrepl/bencode {:mvn/version "1.0.0"}
+        com.cognitect/transit-clj {:mvn/version "1.0.324"}}
-        }
  :aliases {:main
            {:main-opts ["-m" "babashka.main"]}
            :profile

doc/dev.md

@@ -61,6 +61,9 @@ $ BABASHKA_XMX="-J-Xmx4g" script/compile
 
 Keep notes here about how adding libraries and classes to Babashka affects the binary size.
 
+2020/03/29 Added clj-yaml for parsing and generating yaml.
+45196996 - 42626884 = 2570kb added.
+
 2020/03/28 Added java.nio.file.FileSystem(s) to support extracting zip files
 42562284 - 42021244 = 541kb added.
 

project.clj

@@ -21,8 +21,8 @@
                  [org.clojure/data.csv "1.0.0"]
                  [cheshire "5.10.0"]
                  [fipp "0.6.22"]
-                 [com.cognitect/transit-clj "1.0.324"]
+                 [clj-commons/clj-yaml "0.7.1"]
-                 #_[nrepl/bencode "1.0.0"]]
+                 [com.cognitect/transit-clj "1.0.324"]]
   :profiles {:test {:dependencies [[clj-commons/conch "0.9.2"]
                                    [com.clojure-goes-fast/clj-async-profiler "0.4.0"]]}
              :uberjar {:global-vars {*assert* false}

src/babashka/impl/yaml.clj

@@ -0,0 +1,11 @@
+(ns babashka.impl.yaml
+  {:no-doc true}
+  (:require [clj-yaml.core :as yaml]
+            [sci.impl.namespaces :refer [copy-var]]
+            [sci.impl.vars :as vars]))
+
+(def yns (vars/->SciNamespace 'clj-yaml.core nil))
+
+(def yaml-namespace
+  {'generate-string (copy-var yaml/generate-string yns)
+   'parse-string (copy-var yaml/parse-string yns)})

src/babashka/main.clj

@@ -28,6 +28,7 @@
    [clojure.java.io :as io]
    [clojure.stacktrace :refer [print-stack-trace]]
    [clojure.string :as str]
+   [babashka.impl.yaml :refer [yaml-namespace]]
    [sci.addons :as addons]
    [sci.core :as sci]
    [sci.impl.interpreter :refer [eval-string*]]
@@ -246,6 +247,7 @@ Everything after that is bound to *command-line-args*."))
     async clojure.core.async
     csv clojure.data.csv
     json cheshire.core
+    yaml clj-yaml.core
     curl babashka.curl
     transit cognitect.transit
     bencode bencode.core})
@@ -279,6 +281,7 @@ Everything after that is bound to *command-line-args*."))
    'clojure.repl {'demunge demunge}
    'clojure.test t/clojure-test-namespace
    'babashka.classpath {'add-classpath add-classpath*}
+   'clj-yaml.core yaml-namespace
    'clojure.pprint pprint-namespace
    'babashka.curl curl-namespace
    'cognitect.transit transit-namespace

test/babashka/main_test.clj

@@ -402,6 +402,12 @@
       (bb nil (format "(.deleteOnExit (io/file \"%s\"))" p))
       (is (false? (.exists f))))))
 
+
+(deftest yaml-test
+  (is (str/starts-with?
+       (bb nil "(yaml/generate-string [{:name \"John Smith\", :age 33} {:name \"Mary Smith\", :age 27}])")
+       "-")))
+
 (deftest statsd-client-test
   (is (= :success (bb nil "
 (load-file (io/file \"test-resources\" \"babashka\" \"statsd.clj\"))