From 36c56bdf976a5d95973baa011bd7eca194ca37b3 Mon Sep 17 00:00:00 2001
From: Mike Gerwitz <gerwitzm@lovullo.com>
Date: Wed, 28 Aug 2013 13:56:10 -0400
Subject: [PATCH] Added tasktime plotting

---
 plot/tasktime     |  8 ++++++++
 task.sty          | 16 ++++++++++++++++
 tools/gentasktime | 43 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 67 insertions(+)
 create mode 100644 plot/tasktime
 create mode 100755 tools/gentasktime

diff --git a/plot/tasktime b/plot/tasktime
new file mode 100644
index 0000000..89890ff
--- /dev/null
+++ b/plot/tasktime
@@ -0,0 +1,8 @@
+set terminal png
+set bars 4.0
+set xlabel "Date"
+set ylabel "Man Hours"
+set grid y
+set tics scale 0.0
+plot "tasktime.dat" using 1:3:4:3:4:xtic(2) title 'Time Interval' with candlesticks, \
+     "tasktime.dat" using 1:5 title 'Mean' with lines
diff --git a/task.sty b/task.sty
index 20e0b88..c960cb6 100644
--- a/task.sty
+++ b/task.sty
@@ -168,6 +168,7 @@
 }}
 
 
+\newwrite\@taskstats
 \newcommand\projectsummary{{%
   \section{Project Summary}
   \pnumoff
@@ -179,6 +180,21 @@
   \expandafter\@task@setregs@vari\@@range||%
   \par {\sc Confidence:} \the\@@hconf\%%
   \par {\sc Variability:} \the\@@hvari\%%
+  % calculate median
+  \newcount\@@med
+  \advance\@@med \value{taskamin}%
+  \advance\@@med \value{taskamax}%
+  \divide\@@med by 2\relax
+  % write task stats to file (can be used for reporting by building consecutive
+  % versions, concatenating the data, taking the last row for each date and
+  % plotting, for example)
+  \immediate\openout\@taskstats=taskstats.dat
+  \immediate\write\@taskstats{min max med cp vp}%
+  \immediate\write\@taskstats{%
+    \arabic{taskamin} \arabic{taskamax} \the\@@med
+    \space\the\@@hconf \space\the\@@hvari
+  }%
+  \immediate\closeout\@taskstats
   % reset counters
   \setcounter{taskamin}{0}%
   \setcounter{taskamax}{0}%
diff --git a/tools/gentasktime b/tools/gentasktime
new file mode 100755
index 0000000..e1e2258
--- /dev/null
+++ b/tools/gentasktime
@@ -0,0 +1,43 @@
+#!/bin/bash
+
+src="${1?Missing source document}"
+
+domake()
+{
+  pdflatex -draftmode "$src" >&2
+}
+
+gendate()
+{
+  echo -n "$( git log -n1 --pretty=format:%ai | cut -d' ' -f1 ) "
+}
+
+domake \
+  && echo -n 'id ' \
+  && head -n1 taskstats.dat \
+  && \
+  (
+    gendate && tail -n1 taskstats.dat \
+    && git log --first-parent --no-merges --pretty=format:'%ar %h' \
+    | awk '
+      BEGIN {
+        last=""
+      }
+
+      /days ago/{
+        if ( $1 == last ) next;
+        if ( $1 < last ) nextfile;
+        last = $1;
+        print $1, $NF;
+      }
+    ' \
+    | while read n h; do
+      git checkout "$h" >&2 \
+        && domake \
+        && gendate \
+        && tail -n1 taskstats.dat \
+        || exit 1
+    done
+  ) \
+  | tac \
+  | awk 'BEGIN{i=0}{i++; printf "%d ", i; print}'