From b0c9a5f23c21fbb736861ae1d5a97062f3e655eb Mon Sep 17 00:00:00 2001
From: "Merrifield, Jay" <fracmak@gmail.com>
Date: Wed, 28 Oct 2015 16:57:11 -0400
Subject: [PATCH 1/2] Added support for node streams to image magic

---
 imagemagick.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/imagemagick.js b/imagemagick.js
index b846c0c..48d7e8b 100644
--- a/imagemagick.js
+++ b/imagemagick.js
@@ -140,8 +140,8 @@ exports.identify = function(pathOrArgs, callback) {
     isData = true;
     pathOrArgs = args[args.length-1];
     args[args.length-1] = '-';
-    if (!pathOrArgs.data)
-      throw new Error('first argument is missing the "data" member');
+    if (!pathOrArgs.data && !pathOrArgs.stream)
+      throw new Error('first argument must contain "data" or "stream" member');
   } else if (typeof pathOrArgs === 'function') {
     args[args.length-1] = '-';
     callback = pathOrArgs;
@@ -165,7 +165,9 @@ exports.identify = function(pathOrArgs, callback) {
     callback(err, result);
   });
   if (isData) {
-    if ('string' === typeof pathOrArgs.data) {
+    if (pathOrArgs.stream) {
+      pathOrArgs.stream.pipe(proc.stdin);
+    } else if ('string' === typeof pathOrArgs.data) {
       proc.stdin.setEncoding('binary');
       proc.stdin.write(pathOrArgs.data, 'binary');
       proc.stdin.end();

From fd2c81c71a824a2280d4d42931c9a0365003e664 Mon Sep 17 00:00:00 2001
From: dkrantsberg <dkrantsber@gannett.com>
Date: Tue, 9 May 2017 15:17:17 -0400
Subject: [PATCH 2/2] changed the logic to first check whether the next line is
 indented and if it is then make the current property an object as opposed to
 a string value.

---
 imagemagick.js | 65 ++++++++++++++++++++++++++++----------------------
 1 file changed, 36 insertions(+), 29 deletions(-)

diff --git a/imagemagick.js b/imagemagick.js
index 48d7e8b..1536d22 100644
--- a/imagemagick.js
+++ b/imagemagick.js
@@ -99,36 +99,43 @@ function exec2(file, args /*, options, callback */) {
 
 
 function parseIdentify(input) {
-  var lines = input.split("\n"),
-      prop = {},
-      props = [prop],
-      prevIndent = 0,
-      indents = [indent],
-      currentLine, comps, indent, i;
-
-  lines.shift(); //drop first line (Image: name.jpg)
-
-  for (i in lines) {
-    currentLine = lines[i];
-    indent = currentLine.search(/\S/);
-    if (indent >= 0) {
-      comps = currentLine.split(': ');
-      if (indent > prevIndent) indents.push(indent);
-      while (indent < prevIndent && props.length) {
-        indents.pop();
-        prop = props.pop();
-        prevIndent = indents[indents.length - 1];
-      }
-      if (comps.length < 2) {
-        props.push(prop);
-        prop = prop[currentLine.split(':')[0].trim().toLowerCase()] = {};
-      } else {
-        prop[comps[0].trim().toLowerCase()] = comps[1].trim()
-      }
-      prevIndent = indent;
+    var lines = input.split("\n"),
+        prop = {},
+        props = [prop],
+        prevIndent = 0,
+        indents = [indent],
+        currentLine, comps, indent, i, nextIndent;
+
+    lines.shift(); //drop first line (Image: name.jpg)
+
+    for (i in lines) {
+        currentLine = lines[i];
+        indent = nextIndent || currentLine.search(/\S/);
+        if (indent >= 0) {
+            comps = currentLine.split(': ');
+            if (indent > prevIndent) indents.push(indent);
+            while (indent < prevIndent && props.length) {
+                indents.pop();
+                prop = props.pop();
+                prevIndent = indents[indents.length - 1];
+            }
+            nextIndent = getLineIndent(parseInt(i) + 1, lines);
+            if (comps.length < 2 || nextIndent > indent) {
+                props.push(prop);
+                prop = prop[currentLine.split(':')[0].trim().toLowerCase()] = {};
+            } else {
+                prop[comps[0].trim().toLowerCase()] = comps[1].trim()
+            }
+            prevIndent = indent;
+        }
+    }
+    return prop;
+};
+
+function getLineIndent(lineNum, lines){
+    if(lineNum < lines.length){
+        return lines[lineNum].search(/\S/);
     }
-  }
-  return prop;
 };
 
 exports.identify = function(pathOrArgs, callback) {