Commit has files conditional

v0.1

.gitignore

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+node_modules

export.js

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+var fs = require('fs')
+var gs = require('ghostscript')
+var path = require('path')
+
+var reckon_path = "."
+var export_path = "export"
+var index_name = "index.json"
+
+if(!fs.existsSync(export_path))
+	fs.mkdirSync(export_path);
+
+var index = [];
+var index_path = path.join(export_path, index_name);
+if(fs.existsSync(index_path))
+	index = JSON.parse(fs.readFileSync(index_path, 'utf8'));
+
+
+fs.readdir(reckon_path, function(err, files) {
+	if(err)
+		throw err;
+	files.map(function (f) {
+		return {"name" : f, "path" : path.join(reckon_path, f)};
+	}).filter(function (f) {
+			return (fs.statSync(f.path).isFile() && path.extname(f.path) === '.pdf' && !exists(f.name));		
+	}).forEach(function (f) {
+		var img_fname = extract_img(f.path);
+		var entry = {}		
+		entry.name = f.name;
+		entry.imgs = [];
+		entry.imgs.push(img_fname);
+		index.push(entry);
+	})
+
+	var index_content = JSON.stringify(index, null, 2);
+	fs.writeFile(index_path, index_content, function(err) {
+		if(err) return console.log(err);
+		console.log(index_path + '>' + index_content);
+	}); 
+	
+});
+
+
+
+function extract_img(file) {
+
+	var out_name = path.basename(file) + ".png"
+	var out = path.join(export_path, out_name);
+	
+	gs()
+  .batch()
+  .quiet()
+  .nopause()
+  .device('pngalpha')
+  .input(file)
+  .output(out)
+  .r(72)
+  .spawn();
+
+  return out_name;
+
+}
+
+function exists(fname) {
+	for (var e in index) {
+		if(index[e].name === fname)
+			return true;
+	}
+	return false;
+}

export/index.json

@@ -0,0 +1,140 @@
+[
+  {
+    "name": "A Spreadsheet Way of Knowledge — Backchannel — Medium.pdf",
+    "imgs": [
+      "A Spreadsheet Way of Knowledge — Backchannel — Medium.pdf.png"
+    ]
+  },
+  {
+    "name": "Adding Machines.pdf",
+    "imgs": [
+      "Adding Machines.pdf.png"
+    ]
+  },
+  {
+    "name": "Barnes_Alan Kay-Transforming the Computer into a Communication Medium_2007.pdf",
+    "imgs": [
+      "Barnes_Alan Kay-Transforming the Computer into a Communication Medium_2007.pdf.png"
+    ]
+  },
+  {
+    "name": "Capurro_Past present and future of the concept of information_2009.pdf",
+    "imgs": [
+      "Capurro_Past present and future of the concept of information_2009.pdf.png"
+    ]
+  },
+  {
+    "name": "Copeland_Computation_2004.pdf",
+    "imgs": [
+      "Copeland_Computation_2004.pdf.png"
+    ]
+  },
+  {
+    "name": "Gilles Deleuze - The Exhausted.pdf",
+    "imgs": [
+      "Gilles Deleuze - The Exhausted.pdf.png"
+    ]
+  },
+  {
+    "name": "Grier-CarpetForcomputingRoom.pdf",
+    "imgs": [
+      "Grier-CarpetForcomputingRoom.pdf.png"
+    ]
+  },
+  {
+    "name": "History of Computation - 16-19th Century Work.pdf",
+    "imgs": [
+      "History of Computation - 16-19th Century Work.pdf.png"
+    ]
+  },
+  {
+    "name": "Leibniz_ArithmetiqueBinaire.pdf",
+    "imgs": [
+      "Leibniz_ArithmetiqueBinaire.pdf.png"
+    ]
+  },
+  {
+    "name": "MR1418.deviates.pdf",
+    "imgs": [
+      "MR1418.deviates.pdf.png"
+    ]
+  },
+  {
+    "name": "National Research Counil bibliography of mathematical tables and other aids to computation_1939.pdf",
+    "imgs": [
+      "National Research Counil bibliography of mathematical tables and other aids to computation_1939.pdf.png"
+    ]
+  },
+  {
+    "name": "Pickering_The Cybernetic Brain Sketches of Another Future_2010 copy.pdf",
+    "imgs": [
+      "Pickering_The Cybernetic Brain Sketches of Another Future_2010 copy.pdf.png"
+    ]
+  },
+  {
+    "name": "Prentice_Calculating machines calculating women-redesigning astronomical and scientific computation in Britian 1915-1946_2000.pdf",
+    "imgs": [
+      "Prentice_Calculating machines calculating women-redesigning astronomical and scientific computation in Britian 1915-1946_2000.pdf.png"
+    ]
+  },
+  {
+    "name": "RCA_Tables of Trigonometric Functions and Non-sexagesimal arguements_1943.pdf",
+    "imgs": [
+      "RCA_Tables of Trigonometric Functions and Non-sexagesimal arguements_1943.pdf.png"
+    ]
+  },
+  {
+    "name": "Skinner_The age of the female computers_2006.pdf",
+    "imgs": [
+      "Skinner_The age of the female computers_2006.pdf.png"
+    ]
+  },
+  {
+    "name": "Turing_Computing machinery and intelligence_1950_ORIGINAL.pdf",
+    "imgs": [
+      "Turing_Computing machinery and intelligence_1950_ORIGINAL.pdf.png"
+    ]
+  },
+  {
+    "name": "Turing_On Computable Numbers_1936.pdf",
+    "imgs": [
+      "Turing_On Computable Numbers_1936.pdf.png"
+    ]
+  },
+  {
+    "name": "VonNeumann-EDVAC-2003-08-TheFirstDraft.pdf",
+    "imgs": [
+      "VonNeumann-EDVAC-2003-08-TheFirstDraft.pdf.png"
+    ]
+  },
+  {
+    "name": "VonNeumann56-LOGIC-AUTOMATA-ERROR-REDUNDANCY.pdf",
+    "imgs": [
+      "VonNeumann56-LOGIC-AUTOMATA-ERROR-REDUNDANCY.pdf.png"
+    ]
+  },
+  {
+    "name": "Wikipedia_Computational Logic.pdf",
+    "imgs": [
+      "Wikipedia_Computational Logic.pdf.png"
+    ]
+  },
+  {
+    "name": "Women Computers in World War II - GHN: IEEE Global History Network.pdf",
+    "imgs": [
+      "Women Computers in World War II - GHN: IEEE Global History Network.pdf.png"
+    ]
+  },
+  {
+    "name": "computation-OED.pdf",
+    "imgs": [
+      "computation-OED.pdf.png"
+    ]
+  },
+  {
+    "name": "reckon, v. : Oxford English Dictionary.pdf",
+    "imgs": [
+      "reckon, v. : Oxford English Dictionary.pdf.png"
+    ]
+  }
+]

index.html

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+<html lang="en">
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+	<link rel="stylesheet" type="text/css" href="reckon.css"/>
+	<title>Performing Histories of Computation</title>
+</head>
+<body>
+	<div id="listing">
+		<div id="title"><h1>Performing Histories of Computation</h1></div>
+		<!-- entry #0 -->
+<entry>
+	<commit><h2>Commit: a3cc75c3ec7a300309ff93b89f1c0c4e73eb0bde</h2></commit>
+	<commit>Mon May 25 2015 21:37:42 GMT+0200 (CEST)</commit>
+	<message><h3>Exported files (bis) — </h3></message>
+	<content>
+			</content>
+</entry>
+<!-- entry #1 -->
+<entry>
+	<commit><h2>Commit: 56806a0befa4cc0b73f606ea001501f756f0292e</h2></commit>
+	<commit>Mon May 25 2015 21:27:37 GMT+0200 (CEST)</commit>
+	<message><h3>Added export script and dependencies — </h3></message>
+	<content>
+		<a href="export.js">export.js</a>
+	</content>
+</entry>
+<!-- entry #2 -->
+<entry>
+	<commit><h2>Commit: 3b1bca9c41177fc39e26af8793286a2bcb58d2dc</h2></commit>
+	<commit>Mon May 25 2015 20:45:58 GMT+0200 (CEST)</commit>
+	<message><h3>Performing Scripts — 
+git and html scripts
+</h3></message>
+	<content>
+		<a href="reckon.css">reckon.css</a>
+		<a href="template.html">template.html</a>
+	</content>
+</entry>
+<!-- entry #3 -->
+<entry>
+	<commit><h2>Commit: 474b259cef617097cd1b6a4f50bb649166022d6c</h2></commit>
+	<commit>Thu May 21 2015 21:33:08 GMT+0200 (CEST)</commit>
+	<message><h3>.gitignore — </h3></message>
+	<content>
+		<a href=".gitignore">.gitignore</a>
+		<a href="index.js">index.js</a>
+		<a href="package.json">package.json</a>
+	</content>
+</entry>
+<!-- entry #4 -->
+<entry>
+	<commit><h2>Commit: 53848f1a11a889cd42834a60e53bc1be5f34a575</h2></commit>
+	<commit>Tue May 12 2015 20:55:44 GMT+0200 (CEST)</commit>
+	<message><h3>cleanup — </h3></message>
+	<content>
+		<a href="5 MB punched cards-1960s.jpg"><img src="5 MB punched cards-1960s.jpg"/></a>
+		<a href="Baltimore Social Security office_ca 1937.jpg"><img src="Baltimore Social Security office_ca 1937.jpg"/></a>
+		<a href="Distributed computing in 1924.jpg"><img src="Distributed computing in 1924.jpg"/></a>
+		<a href="Early NASA Computers (women).jpg"><img src="Early NASA Computers (women).jpg"/></a>
+		<a href="Early_1920s_Veterans_Bureau_Calculating_WWI_Vet_Bonuses_LOC.jpg"><img src="Early_1920s_Veterans_Bureau_Calculating_WWI_Vet_Bonuses_LOC.jpg"/></a>
+		<a href="First Computer Bug Grace Hopper.jpg"><img src="First Computer Bug Grace Hopper.jpg"/></a>
+		<a href="French hairdressers into computers.jpg"><img src="French hairdressers into computers.jpg"/></a>
+		<a href="Hollerith Census Card.gif"><img src="Hollerith Census Card.gif"/></a>
+		<a href="Leibniz_ArithmetiqueBinaire.pdf"><img src="export/Leibniz_ArithmetiqueBinaire.pdf.png"/>
+</a>		<a href="Macie Roberts computing group circa 1955.jpg"><img src="Macie Roberts computing group circa 1955.jpg"/></a>
+		<a href="Punched card sorter-icepick.jpg"><img src="Punched card sorter-icepick.jpg"/></a>
+		<a href="RCA_Tables of Trigonometric Functions and Non-sexagesimal arguements_1943.pdf"><img src="export/RCA_Tables of Trigonometric Functions and Non-sexagesimal arguements_1943.pdf.png"/>
+</a>		<a href="Social Security original punched data card 1937.jpg"><img src="Social Security original punched data card 1937.jpg"/></a>
+		<a href="Storage of IBM record cards at the Federal records center in Alexandria, Virginia, November 1959.jpg"><img src="Storage of IBM record cards at the Federal records center in Alexandria, Virginia, November 1959.jpg"/></a>
+		<a href="Women computers in WW2.jpg"><img src="Women computers in WW2.jpg"/></a>
+		<a href="leibniz-calcul-binaire.png"><img src="leibniz-calcul-binaire.png"/></a>
+		<a href="shannon.png"><img src="shannon.png"/></a>
+	</content>
+</entry>
+<!-- entry #5 -->
+<entry>
+	<commit><h2>Commit: 8148dbbf365c7c69848dfb9d0c93b767ed45f587</h2></commit>
+	<commit>Thu Apr 09 2015 14:30:09 GMT+0200 (CEST)</commit>
+	<message><h3>von Neumann - Planning and Coding — </h3></message>
+	<content>
+		<a href="VonNeumann_PlanningCoding.pdf"></a>	</content>
+</entry>
+<!-- entry #6 -->
+<entry>
+	<commit><h2>Commit: b9d5e43d96e261de2985bac8fbbd2a16bb623bec</h2></commit>
+	<commit>Thu Mar 19 2015 18:14:41 GMT+0100 (CET)</commit>
+	<message><h3>Stibitz adder relay — </h3></message>
+	<content>
+		<a href="Stibitz-KModel.jpg"><img src="Stibitz-KModel.jpg"/></a>
+	</content>
+</entry>
+<!-- entry #7 -->
+<entry>
+	<commit><h2>Commit: 420f1735ea0226d1237dd0c5a040de1a3da6c87d</h2></commit>
+	<commit>Thu Mar 19 2015 17:57:27 GMT+0100 (CET)</commit>
+	<message><h3>The Whetstone of Witte — </h3></message>
+	<content>
+		<a href="The Whetstone of Witte - Addition.png"><img src="The Whetstone of Witte - Addition.png"/></a>
+		<a href="The Whetstone of Witte - Multiplication.png"><img src="The Whetstone of Witte - Multiplication.png"/></a>
+		<a href="The Whetstone of Witte.png"><img src="The Whetstone of Witte.png"/></a>
+	</content>
+</entry>
+<!-- entry #8 -->
+<entry>
+	<commit><h2>Commit: 5962f7dea3e9fd32d4a616055383ef3c10b875f3</h2></commit>
+	<commit>Thu Mar 19 2015 17:34:34 GMT+0100 (CET)</commit>
+	<message><h3>Logs - Napier + Briggs — </h3></message>
+	<content>
+		<a href="1205HOFnapier_Fig.jpg"><img src="1205HOFnapier_Fig.jpg"/></a>
+		<a href="Briggs.Arithmetica logarithmica.1624.critica logarithms.jpg"><img src="Briggs.Arithmetica logarithmica.1624.critica logarithms.jpg"/></a>
+		<a href="Briggs_Arithmetica_logarithmica_1624.jpg"><img src="Briggs_Arithmetica_logarithmica_1624.jpg"/></a>
+		<a href="napierrods_27640_md.gif"><img src="napierrods_27640_md.gif"/></a>
+	</content>
+</entry>
+<!-- entry #9 -->
+<entry>
+	<commit><h2>Commit: 34f8945d76452bf36f9cd05c4d60936f8348eae7</h2></commit>
+	<commit>Thu Mar 19 2015 16:45:08 GMT+0100 (CET)</commit>
+	<message><h3>RAND's Million Random Digits — </h3></message>
+	<content>
+		<a href="MR1418.deviates.pdf"><img src="export/MR1418.deviates.pdf.png"/>
+</a>		<a href="Ready Reckoner.jpg"><img src="Ready Reckoner.jpg"/></a>
+	</content>
+</entry>
+<!-- entry #10 -->
+<entry>
+	<commit><h2>Commit: c1e5a6c2262513d58479f4a0ef3490a6cd73b81e</h2></commit>
+	<commit>Thu Mar 19 2015 15:59:44 GMT+0100 (CET)</commit>
+	<message><h3>Pascaline (Pascale) + Step Reckoner (Leinbniz) — </h3></message>
+	<content>
+		<a href="Leibniz_Stepped_Reckoner_drawing.png"><img src="Leibniz_Stepped_Reckoner_drawing.png"/></a>
+		<a href="pascaline.jpg"><img src="pascaline.jpg"/></a>
+	</content>
+</entry>
+<!-- entry #11 -->
+<entry>
+	<commit><h2>Commit: c2ff166f6185e1cf1bdc8d424ddc5ab05d0186e2</h2></commit>
+	<commit>Thu Mar 19 2015 10:00:05 GMT+0100 (CET)</commit>
+	<message><h3>Turing's discussion of digital computers — 
+In this bit of his 1950 paper, Turing identifies the computer as a
+processing and storage system, not as a computational device.
+</h3></message>
+	<content>
+		<a href="Turing---Digital-Computers.jpg"><img src="Turing---Digital-Computers.jpg"/></a>
+	</content>
+</entry>
+<!-- entry #12 -->
+<entry>
+	<commit><h2>Commit: 57bdc1eb33cb1f543702bce1fa79fa51375b2bc5</h2></commit>
+	<commit>Thu Mar 19 2015 09:59:12 GMT+0100 (CET)</commit>
+	<message><h3>Turing's Computing machinery and intelligence first page — </h3></message>
+	<content>
+		<a href="Turing_Computing-machinery-and-intelligence_1950_ORIGINAL.jpg"><img src="Turing_Computing-machinery-and-intelligence_1950_ORIGINAL.jpg"/></a>
+	</content>
+</entry>
+<!-- entry #13 -->
+<entry>
+	<commit><h2>Commit: 1737a2d2e3bb0572b6bf849d9f33f60da8a47ac0</h2></commit>
+	<commit>Thu Mar 19 2015 09:58:40 GMT+0100 (CET)</commit>
+	<message><h3>OED entry for reckon — 
+I like this as Reckon is about 17 pages longer than that for computer.
+</h3></message>
+	<content>
+		<a href="reckon, v. : Oxford English Dictionary.pdf"><img src="export/reckon, v. : Oxford English Dictionary.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #14 -->
+<entry>
+	<commit><h2>Commit: 37177e392787c302bc57d7da4cc98871c5adfef0</h2></commit>
+	<commit>Thu Mar 19 2015 09:58:02 GMT+0100 (CET)</commit>
+	<message><h3>OED dictionary entry for Computer — </h3></message>
+	<content>
+		<a href="OED-Computer.jpg"><img src="OED-Computer.jpg"/></a>
+	</content>
+</entry>
+<!-- entry #15 -->
+<entry>
+	<commit><h2>Commit: 759cd645d4eb22b38fd456879cce006ec27adff4</h2></commit>
+	<commit>Thu Mar 19 2015 09:57:43 GMT+0100 (CET)</commit>
+	<message><h3>Engelbart's Mother of all Demos — 
+The best image I know of Doug Englebart’s 1969 demo of the personal
+computer environment.
+</h3></message>
+	<content>
+		<a href="Doug Engelbart's Presentation - 9-12-1968.jpg"><img src="Doug Engelbart's Presentation - 9-12-1968.jpg"/></a>
+	</content>
+</entry>
+<!-- entry #16 -->
+<entry>
+	<commit><h2>Commit: a02dde35d99d15b8a158f434ee6b6f4a0782a05d</h2></commit>
+	<commit>Thu Mar 19 2015 09:56:50 GMT+0100 (CET)</commit>
+	<message><h3>some more notes — </h3></message>
+	<content>
+		<a href="Computation Notes 9-3-2015.pages">Computation Notes 9-3-2015.pages</a>
+	</content>
+</entry>
+<!-- entry #17 -->
+<entry>
+	<commit><h2>Commit: 4c9f26a09b221f1e65803c75f9ebb628a0ace395</h2></commit>
+	<commit>Thu Mar 19 2015 09:56:35 GMT+0100 (CET)</commit>
+	<message><h3>Capurro - Information semantic shift article — 
+Though this paper is about the semantic shift in information and
+message, I like how it disentangles a semantic shift of an allied term.
+I would like to do something similar with computation.
+</h3></message>
+	<content>
+		<a href="Capurro_Past present and future of the concept of information_2009.pdf"><img src="export/Capurro_Past present and future of the concept of information_2009.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #18 -->
+<entry>
+	<commit><h2>Commit: cfbc8368159e12d0dd57030b71410bcb83ec8005</h2></commit>
+	<commit>Thu Mar 19 2015 09:55:30 GMT+0100 (CET)</commit>
+	<message><h3>Barnes - Alan Kay paper — 
+This is Susan Barnes’ paper on Alan Kay’s computer work as a
+communication medium.
+</h3></message>
+	<content>
+		<a href="Barnes_Alan Kay-Transforming the Computer into a Communication Medium_2007.pdf"><img src="export/Barnes_Alan Kay-Transforming the Computer into a Communication Medium_2007.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #19 -->
+<entry>
+	<commit><h2>Commit: 6b5d4f551fb1e87e8e9927fcca1251f89e337862</h2></commit>
+	<commit>Thu Mar 19 2015 09:54:46 GMT+0100 (CET)</commit>
+	<message><h3>First Dutch computer — 
+Just for fun as we are in Amsterdam
+</h3></message>
+	<content>
+		<a href="ARRA 1 Computer-first dutch computer.jpg"><img src="ARRA 1 Computer-first dutch computer.jpg"/></a>
+	</content>
+</entry>
+<!-- entry #20 -->
+<entry>
+	<commit><h2>Commit: 275bd069c45ddcaae1e609b9642214649df13cc5</h2></commit>
+	<commit>Thu Mar 19 2015 09:54:21 GMT+0100 (CET)</commit>
+	<message><h3>The Arithometer — 
+The first widely used calculating machine. The Arithometer was in use
+from the 1860 to this final version produced in 1914.
+</h3></message>
+	<content>
+		<a href="Arithmometer_Veuve_Payen_Last to be manufactured 1914.png"><img src="Arithmometer_Veuve_Payen_Last to be manufactured 1914.png"/></a>
+	</content>
+</entry>
+<!-- entry #21 -->
+<entry>
+	<commit><h2>Commit: ddbce4b4d8fbd7fbb2b171002d5eb37f9846bd62</h2></commit>
+	<commit>Thu Mar 19 2015 09:53:27 GMT+0100 (CET)</commit>
+	<message><h3>Logic gates — 
+Again, the process of the computer chip is not so calculative as it is
+logical. It is a process of logical choices of input. Turing’s point
+was that these logical choices, assembled in a process, could emulate
+any calculative process.
+</h3></message>
+	<content>
+		<a href="all computer logic gates.gif"><img src="all computer logic gates.gif"/></a>
+	</content>
+</entry>
+<!-- entry #22 -->
+<entry>
+	<commit><h2>Commit: 96e409a72f703ca63402c8f524483e73f27a8aea</h2></commit>
+	<commit>Thu Mar 19 2015 09:51:42 GMT+0100 (CET)</commit>
+	<message><h3>Alan Turing photo — 
+I particularly like this photo of Alan Turing as it is about the only
+one where he is smiling.
+</h3></message>
+	<content>
+		<a href="Alan Turing.jpg"><img src="Alan Turing.jpg"/></a>
+	</content>
+</entry>
+<!-- entry #23 -->
+<entry>
+	<commit><h2>Commit: e6b9d81618e54b0c267708cbf7ee2fa61444c226</h2></commit>
+	<commit>Thu Mar 19 2015 09:50:40 GMT+0100 (CET)</commit>
+	<message><h3>Nice set of adding machines and calculators from google — </h3></message>
+	<content>
+		<a href="Adding Machines.pdf"><img src="export/Adding Machines.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #24 -->
+<entry>
+	<commit><h2>Commit: 5151310092a162121a2d004a64e020176cb7b72e</h2></commit>
+	<commit>Thu Mar 19 2015 09:50:18 GMT+0100 (CET)</commit>
+	<message><h3>Alan Kay's KiddieKomp Computer — 
+this shows how in the early stages of SRI and PARC’s work on the
+personal computer, they were media and education devices. This shows
+how the goals were not at all about computation, but about media and
+information work and coding.
+</h3></message>
+	<content>
+		<a href="Alan Kay's KiddieKomp Computer diagram_.gif"><img src="Alan Kay's KiddieKomp Computer diagram_.gif"/></a>
+	</content>
+</entry>
+<!-- entry #25 -->
+<entry>
+	<commit><h2>Commit: 59b9924d4610984f5aaa770ff810066c55320864</h2></commit>
+	<commit>Wed Mar 04 2015 19:35:29 GMT+0100 (CET)</commit>
+	<message><h3>When computers were human — 
+Chapter 5 of Grier’s Book, when People were human. "A carpet for the
+computing room".
+</h3></message>
+	<content>
+		<a href="Grier-CarpetForcomputingRoom.pdf"><img src="export/Grier-CarpetForcomputingRoom.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #26 -->
+<entry>
+	<commit><h2>Commit: a7b02f434e5137421f4091d491885abda839960d</h2></commit>
+	<commit>Wed Mar 04 2015 19:34:47 GMT+0100 (CET)</commit>
+	<message><h3>Electronic brains — 
+A 1960s advert for the Geniac, an electronic brain (calculator)
+</h3></message>
+	<content>
+		<a href="Geniac-Electronic brain from 1957.png"><img src="Geniac-Electronic brain from 1957.png"/></a>
+	</content>
+</entry>
+<!-- entry #27 -->
+<entry>
+	<commit><h2>Commit: ca9b21e46a57b16054ad1ddc620a3663c4868df3</h2></commit>
+	<commit>Wed Mar 04 2015 19:34:07 GMT+0100 (CET)</commit>
+	<message><h3>Spreadsheet way of knowing — 
+Paper from the early 1980s on the rise of spreadsheets and their
+particular epistemology.
+</h3></message>
+	<content>
+		<a href="A Spreadsheet Way of Knowledge — Backchannel — Medium.pdf"><img src="export/A Spreadsheet Way of Knowledge — Backchannel — Medium.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #28 -->
+<entry>
+	<commit><h2>Commit: 51149552523e10a2f0a765283ff85b39bfb1e571</h2></commit>
+	<commit>Wed Mar 04 2015 19:33:15 GMT+0100 (CET)</commit>
+	<message><h3>Ledgers as computational formula — 
+Ledgers were the primary computational forms for economic, statistical
+and financial reckoning until well into the 1970s.
+</h3></message>
+	<content>
+		<a href="13 column ledger paper.jpg"><img src="13 column ledger paper.jpg"/></a>
+		<a href="ledger of slave picked cotton_1840-1860.jpg"><img src="ledger of slave picked cotton_1840-1860.jpg"/></a>
+		<a href="ledgers.jpg"><img src="ledgers.jpg"/></a>
+	</content>
+</entry>
+<!-- entry #29 -->
+<entry>
+	<commit><h2>Commit: 171d96db6379741183c94708933a3562fbe33367</h2></commit>
+	<commit>Thu Feb 12 2015 10:20:23 GMT+0100 (CET)</commit>
+	<message><h3>Calculating machines, calculating women — 
+Three works on women as computors (computers) and its importance to the
+concept of computation.
+</h3></message>
+	<content>
+		<a href="Prentice_Calculating machines calculating women-redesigning astronomical and scientific computation in Britian 1915-1946_2000.pdf"><img src="export/Prentice_Calculating machines calculating women-redesigning astronomical and scientific computation in Britian 1915-1946_2000.pdf.png"/>
+</a>		<a href="Skinner_The age of the female computers_2006.pdf"><img src="export/Skinner_The age of the female computers_2006.pdf.png"/>
+</a>		<a href="Women Computers in World War II - GHN: IEEE Global History Network.pdf"><img src="export/Women Computers in World War II - GHN: IEEE Global History Network.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #30 -->
+<entry>
+	<commit><h2>Commit: 730c25b9be31f5d36fbd79f1145dd0d08ece1e62</h2></commit>
+	<commit>Thu Feb 12 2015 10:19:19 GMT+0100 (CET)</commit>
+	<message><h3>NRC categories of mathematical tables — 
+This is fun to see that "Calculating machines" are relegated to Z
+</h3></message>
+	<content>
+		<a href="National Research Counil bibliography of mathematical tables and other aids to computation_1939.pdf"><img src="export/National Research Counil bibliography of mathematical tables and other aids to computation_1939.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #31 -->
+<entry>
+	<commit><h2>Commit: e8e60e82c750b7901f0018c53c8ef6d2fc5627ab</h2></commit>
+	<commit>Thu Feb 12 2015 10:18:15 GMT+0100 (CET)</commit>
+	<message><h3>History of Computation — 
+Not that good, but a useful resource.
+</h3></message>
+	<content>
+		<a href="History of Computation - 16-19th Century Work.pdf"><img src="export/History of Computation - 16-19th Century Work.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #32 -->
+<entry>
+	<commit><h2>Commit: e1bd1f73d3534fa450c1b1f3202a4667a84bc304</h2></commit>
+	<commit>Thu Feb 12 2015 09:40:28 GMT+0100 (CET)</commit>
+	<message><h3>Turing's article on Computing machinery intelligen — 
+Turing's article on Computing machinery and intelligence. There is an
+open document as well as the original.
+</h3></message>
+	<content>
+		<a href="Turing_Computing machinery and intelligence_1950.docx">Turing_Computing machinery and intelligence_1950.docx</a>
+		<a href="Turing_Computing machinery and intelligence_1950_ORIGINAL.pdf"><img src="export/Turing_Computing machinery and intelligence_1950_ORIGINAL.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #33 -->
+<entry>
+	<commit><h2>Commit: 971ee4a2c2d74a27d40c4179f952d2c6804d7e0a</h2></commit>
+	<commit>Wed Feb 11 2015 14:29:03 GMT+0100 (CET)</commit>
+	<message><h3>Turing's original paper — 
+This is a clean copy of Turing’s On Computable Numbers. Thought it
+could be nice to have.
+</h3></message>
+	<content>
+		<a href="Turing_On Computable Numbers_1936.pdf"><img src="export/Turing_On Computable Numbers_1936.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #34 -->
+<entry>
+	<commit><h2>Commit: 35e55430752ec2ee1f1250fd64c6883b55f136dd</h2></commit>
+	<commit>Tue Feb 10 2015 11:50:38 GMT+0100 (CET)</commit>
+	<message><h3>Deleuze -- The Exhausted — 
+About Combinatorics and Samuel Beckett — à propos when talking about
+Computers (humans)
+</h3></message>
+	<content>
+		<a href="Gilles Deleuze - The Exhausted.pdf"><img src="export/Gilles Deleuze - The Exhausted.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #35 -->
+<entry>
+	<commit><h2>Commit: c3d457ec50a0fab867b75f6c495e39c2d99a2f1d</h2></commit>
+	<commit>Tue Feb 10 2015 11:47:04 GMT+0100 (CET)</commit>
+	<message><h3>Von Neumann (EDVAC + Errors) — 
+I like the idea of fragments (re:  Arcades Project) — perhaps we’d need
+to find a combinatorics of fragments.
+</h3></message>
+	<content>
+		<a href="Computation Project - a proposal.pages">Computation Project - a proposal.pages</a>
+		<a href="Copeland_Computation_2004.pdf"><img src="export/Copeland_Computation_2004.pdf.png"/>
+</a>		<a href="Pickering_The Cybernetic Brain Sketches of Another Future_2010 copy.pdf"><img src="export/Pickering_The Cybernetic Brain Sketches of Another Future_2010 copy.pdf.png"/>
+</a>		<a href="VonNeumann-EDVAC-2003-08-TheFirstDraft.pdf"><img src="export/VonNeumann-EDVAC-2003-08-TheFirstDraft.pdf.png"/>
+</a>		<a href="VonNeumann56-LOGIC-AUTOMATA-ERROR-REDUNDANCY.pdf"><img src="export/VonNeumann56-LOGIC-AUTOMATA-ERROR-REDUNDANCY.pdf.png"/>
+</a>		<a href="Wikipedia_Computational Logic.pdf"><img src="export/Wikipedia_Computational Logic.pdf.png"/>
+</a>		<a href="computation-OED.pdf"><img src="export/computation-OED.pdf.png"/>
+</a>	</content>
+</entry>
+<!-- entry #36 -->
+<entry>
+	<commit><h2>Commit: 9d76cb75f3ca0df9b1c78e2f66c6ad00b4138052</h2></commit>
+	<commit>Fri Feb 06 2015 10:34:53 GMT+0100 (CET)</commit>
+	<message><h3>shannon symbolic analysis</h3></message>
+	<content>
+			</content>
+</entry>
+<!-- entry #37 -->
+<entry>
+	<commit><h2>Commit: 64bb642fa08f57f973037a33bbd9e118ed990104</h2></commit>
+	<commit>Fri Feb 06 2015 10:26:01 GMT+0100 (CET)</commit>
+	<message><h3>_prose.yml config</h3></message>
+	<content>
+		<a href="_prose.yml">_prose.yml</a>
+	</content>
+</entry>
+<!-- entry #38 -->
+<entry>
+	<commit><h2>Commit: 9dceef36ffc51697ce48724da8105f9be40404ec</h2></commit>
+	<commit>Thu Feb 05 2015 13:47:24 GMT+0100 (CET)</commit>
+	<message><h3>Initial commit — </h3></message>
+	<content>
+		<a href="README.md">README.md</a>
+	</content>
+</entry>
+<!-- entry #39 -->
+<entry>
+	<commit><h2>Commit: eaf4543e4be487fb8b45618aab2c341004963f80</h2></commit>
+	<commit>Thu Feb 05 2015 14:44:38 GMT+0100 (CET)</commit>
+	<message><h3>HAHA! commit — </h3></message>
+	<content>
+		<a href="index.md">index.md</a>
+	</content>
+</entry>
+<!-- entry #40 -->
+<entry>
+	<commit><h2>Commit: 7dadd47237a3290df8098a7d48259deea6c83dd1</h2></commit>
+	<commit>Thu Feb 05 2015 13:55:04 GMT+0100 (CET)</commit>
+	<message><h3>HAHA! commit — </h3></message>
+	<content>
+		<a href="index.html">index.html</a>
+	</content>
+</entry>
+
+	</div>
+</body>
+</html>
+

index.js

@@ -0,0 +1,143 @@
+var nodegit = require('nodegit')
+var path = require('path')
+var fs = require('fs')
+
+var git_branch = 'gh-pages';
+
+var all = []
+var git_data = []
+var cnt = 0;
+
+var export_path = 'export';
+var export_index_fname = 'index.json';
+var export_index = null;
+
+var template = '';
+
+var imgs_list_ext_valid = ['.png', '.jpeg', '.jpg', '.gif']
+
+fs.readFile('template.html', 'utf8', function(err, data) {
+	if(err) console.log(err);
+	template = data;
+});
+
+// hmm...
+var export_index_path = path.join(export_path, export_index_fname);
+if(fs.existsSync(export_index_path))
+	export_index = JSON.parse(fs.readFileSync(export_index_path, 'utf8'));
+
+nodegit.Repository.open(path.resolve(__dirname, './.git'))
+	.then(function(repo) {
+		return repo.getBranchCommit(git_branch);
+	})
+	.then(function(first_commit) {
+		var history = first_commit.history(nodegit.Revwalk.SORT.REVERSE);
+		//var history = first_commit.history(nodegit.Revwalk.SORT.TIME);
+
+		history.on("commit", function(commit) {
+
+			var entry = {};
+
+      entry.commit = commit.sha();
+      entry.author = commit.author().name();
+      entry.date = commit.date();    
+      entry.raw = commit.rawHeader(); 
+      entry.message = commit.message().replace('\n', ' — ');
+      entry.files = [];
+
+
+      commit.getTree()
+      	.then(function (tree) {
+        	var entries = tree.entries();
+
+        	for(e in entries) {
+            var ep = entries[e].path();
+            if(all.indexOf(ep) != -1) continue;
+            all.push(ep);
+            entry.files.push(ep);
+        	}
+
+			});
+
+			git_data.push(entry);
+
+		});
+
+    history.on("end", function() {
+    	var body = '';
+    	git_data.reverse();
+			for(var i in git_data) {
+				if(git_data[i].files.length > 0)
+					body += emit_git_entry(git_data[i]);
+			}
+				
+			console.log(template.replace('[[_export_]]', body));
+    });
+
+		history.start();            
+
+	})
+	.done();
+
+function emit_git_entry(entry) {
+
+	var html = '<!-- entry #' + cnt++ + ' -->\n';
+
+	html += '<entry>\n'
+
+	html += '	<commit><h2>Commit: ' + entry.commit + '</h2></commit>\n';
+
+	html += '	<commit>' + entry.date + '</commit>\n';
+
+	html += '	<message><h3>' + entry.message + '</h3></message>\n';
+
+	html += '	<content>\n';
+
+	for(var q in entry.files) {
+		html += '		' + emit_git_content(entry.files[q]);
+	}
+
+	html += '	</content>\n';
+
+	return html + '</entry>\n'
+}
+
+function emit_git_content(c) {
+
+
+	if(!fs.existsSync(path.join('.', c))) return '';
+	if(!fs.statSync(path.join('.', c)).isFile()) return '';
+
+	var ext = path.extname(c);
+
+	if(imgs_list_ext_valid.indexOf(ext) != -1) 
+		return '<a href="' + c + '"><img src="' + c + '"/></a>\n';
+	else if(ext === '.pdf') {
+		return '<a href="' + c + '">' + emit_git_content_pdf(c) + '</a>';
+	} else {
+		return '<a href="' + c + '">' + c + '</a>\n';
+	}
+
+}
+
+function emit_git_content_pdf(c) {
+
+	var index = exists(c);	
+	if(!index) return '';
+
+	return '<img src="' + path.join(export_path, index.imgs[0]) + '"/>\n';
+
+}
+
+/// hmmm....
+function exists(fname) {
+
+	if(!export_index) return null;
+	for (var e in export_index) {
+		if(export_index[e].name === fname)
+			return export_index[e];
+	}
+	return null;
+}
+
+      

package.json

@@ -0,0 +1,31 @@
+{
+  "name": "reckon",
+  "version": "0.0.0",
+  "description": "Reckoning Histories of Computation",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/gauthiier/reckon.git"
+  },
+  "keywords": [
+    "Arcades",
+    "Project"
+  ],
+  "author": "gauthiier",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/gauthiier/reckon/issues"
+  },
+  "homepage": "https://github.com/gauthiier/reckon",
+  "dependencies": {
+    "ghostscript": "https://github.com/gauthiier/node-ghostscript/tarball/master",
+    "nodegit": "^0.4.0"
+  },
+  "scripts" : {
+    "export": "node export.js",
+    "index": "node index.js > index.html"
+  }
+}

reckon.css

@@ -0,0 +1,43 @@
+body {
+	font-family: "Times New Roman", Times, Georgia, serif;
+	background-color: #ffff99;
+	bbackground-color: #e9d6a8;
+	bbackground-color: #eeeeee;
+}
+
+#listing {
+	width: 100%;
+}
+
+#title {
+	margin-left: auto;
+	margin-right: auto;
+	text-align: center;
+	margin: 3em;
+}
+
+entry {
+	display: block;
+	width: 75%;
+	border: 1px solid grey;
+	min-width: 650px;
+	margin-top: 0.6em;
+	padding: 0.6em;
+	background-color: #ffffcc;	
+	margin-left: auto;
+	margin-right: auto;
+}
+
+commit {
+	display: block;	
+}
+
+content {
+	display: block;	
+}
+
+content img {
+	max-width: 300px;
+	border: 1px solid grey;
+	background-color: white;
+}

template.html

@@ -0,0 +1,13 @@
+<html lang="en">
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+	<link rel="stylesheet" type="text/css" href="reckon.css"/>
+	<title>Performing Histories of Computation</title>
+</head>
+<body>
+	<div id="listing">
+		<div id="title"><h1>Performing Histories of Computation</h1></div>
+		[[_export_]]
+	</div>
+</body>
+</html>