initial work

Author: pjdufour

.gitignore

@@ -0,0 +1,5 @@
+go-simple-serializer is maintained by Spatial Current, Inc.
+
+Authors:
+
+* Patrick Dufour (pjdufour)

AUTHORS

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+# Contributing to go-simple-serializer
+
+## Contributor License Agreement
+
+Thank you for your interest in contributing.  You will first need to agree to the license.  Simply post the following paragraph, with "your name" and "your github account" substituted as needed, to the first issue [#1](https://github.com/spatialcurrent/go-simple-serializer/issues/1).  Otherwise, you can email us [here](mailto:[email protected]?subject=CLA).
+
+I, **< YOUR NAME > (< YOUR GITHUB ACCOUNT >)**, agree to the license terms.  My contributions to this repo are granted to **Spatial Current, Inc.** under a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable license and/or copyright is transferred.
+
+## Versioning
+
+This library is still in alpha (0.x.x), so versioning is not semantic yet.
+
+## Authors
+
+See [AUTHORS](https://github.com/spatialcurrent/go-simple-serializer/blob/master/AUTHORS) for a list of contributors.

CONTRIBUTING.md

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+MIT License
+
+Copyright (c) 2018 Spatial Current, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

LICENSE

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+# go-simple-serializer
+
+# Description
+
+**go-simple-serializer** is a simple library for serializing and deserializing objects.
+
+# Contributing
+
+[Spatial Current, Inc.](https://spatialcurrent.io) is currently accepting pull requests for this repository.  We'd love to have your contributions!  Please see [Contributing.md](https://github.com/spatialcurrent/go-simple-serializer/blob/master/CONTRIBUTING.md) for how to get started.
+
+# License
+
+This work is distributed under the **MIT License**.  See **LICENSE** file.

README.md

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+package simpleserializer
+
+import (
+  "bytes"
+  "fmt"
+  "reflect"
+  "encoding/csv"
+  "encoding/json"
+  "strings"
+)
+
+import (
+  "gopkg.in/yaml.v2"
+  "github.com/pkg/errors"
+  "github.com/BurntSushi/toml"
+)
+
+func Serialize(input interface{}, format string) (string, error) {
+  output := ""
+
+  if format == "csv" {
+    s := reflect.ValueOf(input)
+    if s.Kind() != reflect.Slice {
+      return "", errors.New("Input is not of kind slice.")
+    }
+    if s.Len() > 0 {
+      first := s.Index(0).Type()
+      if first.Kind() == reflect.Ptr {
+        first = first.Elem()
+      }
+      rows := make([][]string, 0)
+      header := make([]string, first.NumField())
+      for i := 0; i < first.NumField(); i++ {
+        if tag := first.Field(i).Tag.Get("csv"); len(tag) > 0 {
+          header[i] = tag
+        } else {
+          header[i] = first.Field(i).Name
+        }
+      }
+      for i := 0; i < s.Len(); i++ {
+        rows = append(rows, make([]string, first.NumField()))
+        for j := 0; j < len(header); j++ {
+          ft := first.Field(j).Type
+          switch {
+          case ft == reflect.TypeOf(""):
+            rows[i][j] = s.Index(i).Elem().Field(j).String()
+          case ft == reflect.TypeOf([]string{}):
+            slice_as_strings := s.Index(i).Elem().Field(j).Interface().([]string)
+            rows[i][j] = strings.Join(slice_as_strings, ",")
+          default:
+            rows[i][j] = ""
+          }
+        }
+      }
+      buf := new(bytes.Buffer)
+      w := csv.NewWriter(buf)
+      w.Write(header)
+      w.WriteAll(rows)
+      output = buf.String()
+    }
+  } else if format == "json" {
+    text, err := json.Marshal(input)
+    if err != nil {
+      return "", err
+    }
+    output = string(text)
+  } else if format == "jsonl" {
+    s := reflect.ValueOf(input)
+    if s.Kind() != reflect.Slice {
+      return "", errors.New("Input is not of kind slice.")
+    }
+    for i := 0; i < s.Len(); i++ {
+      text, err := json.Marshal(s.Index(i).Interface())
+      if err != nil {
+        return "", err
+      }
+      output += string(text)
+      if i < s.Len() -1 {
+        output += "\n"
+      }
+    }
+  } else if format == "toml" {
+    buf := new(bytes.Buffer)
+    if err := toml.NewEncoder(buf).Encode(input); err != nil {
+      return "", errors.New(fmt.Sprintf("Error encoding TOML: %s", err))
+    }
+    output = buf.String()
+  } else if format == "yaml" {
+    y, err := yaml.Marshal(input)
+    if err != nil {
+      return "", err
+    }
+    output = string(y)
+  }
+  return output, nil
+}