Initial Release

README.md

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+# Bitcoin Gource
+
+Bitcoin Gource is a project showing the development of Bitcoin in the form of short animations.
+
+Compared to Crypto Gource (https://github.com/0xelion/crypto-gource), our project focuses on Bitcoin and is being developed at the same time.
+
+# FAQ:
+
+- My computer is too weak to create a recording, what to do?
+I suggest to run preview.sh script and record it with an external program.

lib/avatar.pl

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+#!/usr/bin/perl
+#fetch Gravatars
+
+use strict;
+use warnings;
+
+use LWP::Simple;
+use Digest::MD5 qw(md5_hex);
+
+my $size       = 90;
+my $output_dir = '.git/avatar';
+
+die("no .git/ directory found in current path\n") unless -d '.git';
+
+mkdir($output_dir) unless -d $output_dir;
+
+open(GITLOG, q/git log --pretty=format:"%ae|%an" |/) or die("failed to read git-log: $!\n");
+
+my %processed_authors;
+
+while(<GITLOG>) {
+    chomp;
+    my($email, $author) = split(/\|/, $_);
+
+    next if $processed_authors{$author}++;
+
+    my $author_image_file = $output_dir . '/' . $author . '.png';
+
+    #skip images we have
+    next if -e $author_image_file;
+
+    #try and fetch image
+
+    my $grav_url = "http://www.gravatar.com/avatar/".md5_hex(lc $email)."?d=404&size=".$size;
+
+    warn "fetching image for '$author' $email ($grav_url)...\n";
+
+    my $rc = getstore($grav_url, $author_image_file);
+
+    if($rc != 200) {
+        unlink($author_image_file);
+        next;
+    }
+}
+
+close GITLOG;