Add script

kgryte · kgryte · commit 40d4cd45f7d3 · 2017-04-26T09:48:27.000-07:00
diff --git a/tools/git/scripts/author_pkgs_per_month b/tools/git/scripts/author_pkgs_per_month
@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+#
+# Prints the approximate number of packages per month per author.
+#
+# <month> <year> <author_first_name> <author_last_name> <num_pkgs>
+
+# Determine root directory:
+root="$(git rev-parse --show-toplevel)"
+
+# Define the path to a utility to find when `package.json` files were added and deleted:
+pkg_json="${root}/tools/git/scripts/pkg_json_added_deleted"
+
+# * `pkg_json`
+#   - `package.json` additions and deletions.
+# * `awk '{}'`
+#   - Tabulate the monthly totals.
+# * `sort -k1n -k2M`
+#   - Sort the year numerically and sort the second key as a month.
+# * `awk '{}'`
+#   - Format the output.
+"${pkg_json}" | awk '
+{
+	mon = $5 OFS $2
+}
+
+# Added a `package.json`:
+$8 == "A" {
+	pkgs[mon,$6,$7] += 1
+}
+
+# Deleted a `package.json`:
+$8 == "D" {
+	pkgs[mon,$6,$7] -= 1
+}
+
+END {
+	for (k in pkgs) {
+		split(k, keys, SUBSEP)
+		print keys[1] OFS keys[2] OFS keys[3] OFS pkgs[k]
+	}
+}
+' | sort -k1n -k2M | awk '{print $2 OFS $1 OFS $3 OFS $4 OFS $5}'
