1 files changed, 26 insertions, 0 deletions
diff --git a/lib/leap_cli/x509/utils.rb b/lib/leap_cli/x509/utils.rb
new file mode 100644
index 00000000..98ff9c0b
--- /dev/null
+++ b/lib/leap_cli/x509/utils.rb
@@ -0,0 +1,26 @@
+module LeapCli; module X509
+
+  #
+  # TIME HELPERS
+  #
+  # note: we use 'yesterday' instead of 'today', because times are in UTC, and
+  # some people on the planet are behind UTC!
+  #
+
+  def self.yesterday
+    t = Time.now - 24*24*60
+    Time.utc t.year, t.month, t.day
+  end
+
+  def self.yesterday_advance(string)
+    number, unit = string.split(' ')
+    unless ['years', 'months', 'days', 'hours', 'minutes'].include? unit
+      bail!("The time property '#{string}' is missing a unit (one of: years, months, days, hours, minutes).")
+    end
+    unless number.to_i.to_s == number
+      bail!("The time property '#{string}' is missing a number.")
+    end
+    yesterday.advance(unit.to_sym => number.to_i)
+  end
+
+end; end
+\ No newline at end of file