WIP: postprocessing pipeline

Now each run is executed in a independent folder

garlic/pp/hist/default.nix

@@ -0,0 +1,25 @@
+{
+  stdenv
+, ministat
+}:
+
+stdenv.mkDerivation {
+  name = "hist";
+  preferLocalBuild = true;
+  src = ./.;
+
+  dontBuild = true;
+  dontConfigure = true;
+
+  inherit ministat;
+
+  patchPhase = ''
+    substituteAllInPlace hist.sh 
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp hist.sh $out/bin/hist
+    chmod +x $out/bin/hist
+  '';
+}

garlic/pp/hist/hist.sh

@@ -0,0 +1,79 @@
+#!/bin/bash
+
+# Use it either reading from stdin or by specifing
+# multiple files as arguments
+
+# xeon07$ hist stdout.log
+# x <stdin>
+# +------------------------------------------------------------------------+
+# |         x                                                              |
+# |         x                                                              |
+# |         x                                                              |
+# |         x                                                              |
+# |         x                                                              |
+# |        xxx                                                             |
+# |        xxx                                                             |
+# |       xxxxx                                                            |
+# |       xxxxxx                                                           |
+# |       xxxxxxx                                                         x|
+# ||________M_A___________|                                                |
+# +------------------------------------------------------------------------+
+#     N           Min           Max        Median           Avg        Stddev
+# x  30      3.585183      3.763913      3.591559     3.5973344   0.031719975
+#
+# Other ministat options can be passed as well. The -S option splits the results
+# in multiple plots.
+
+
+usage() { echo "Usage: hist [-hSAns] [-c confidence] [-w width] files..." 1>&2; exit 1; }
+
+function stat_files() {
+	tmpfiles=()
+	sedcmd=""
+
+	for file in ${files[@]}; do
+		tmp=$(mktemp)
+		awk '/^time /{print $2}' "$file" > "$tmp"
+		sedcmd+="s:$tmp:$file:g;"
+		tmpfiles+=($tmp)
+	done
+
+	if [ $split == 1 ]; then
+		for f in "${tmpfiles[@]}"; do
+			ministat $ministat_opt $f | sed -e "$sedcmd"
+		done
+	else
+		ministat $ministat_opt ${tmpfiles[@]} | sed -e "$sedcmd"
+	fi
+
+	rm ${tmpfiles[@]}
+}
+
+split=0
+ministat_opt="-w72"
+
+while getopts "hSAnsc:w:" o; do
+    case "${o}" in
+        S) split=1 ;;
+        c) ministat_opt+=" -c $OPTARG" ;;
+        w) ministat_opt+=" -w $OPTARG" ;;
+        A) ministat_opt+=" -$o" ;;
+        n) ministat_opt+=" -$o" ;;
+        s) ministat_opt+=" -$o" ;;
+        *) usage ;;
+    esac
+done
+
+shift $((OPTIND-1))
+
+ministat=@ministat@/bin
+#ministat=/nix/store/sh9b484bnhkajxnblpwix7fhbkid6365-ministat-20150715-1/bin
+
+export PATH="$PATH:$ministat"
+
+files=("$@")
+if [[ -z "${files[@]}" ]]; then
+	awk '/^time /{print $2}' | ministat $ministat_opt
+else
+	stat_files
+fi