Using {%- -%} to remove extra blank lines in ICS files

Author: escowles

_includes/calendar-day.ics

@@ -1,28 +1,28 @@
-{% for event in include.events %}
-{% assign times = event.time | remove: ":" | split: "-" %}
-{% if times[0] and times[1] %}
+{%- for event in include.events -%}
+{%- assign times = event.time | remove: ":" | split: "-" -%}
+{%- if times[0] and times[1] %}
 BEGIN:VEVENT
 SUMMARY:{{ event.title }} (Code4Lib {{ site.data.conf.year }})
-{% if event.groupId %}
-{% assign talks = site.posts | where: "group", event.groupId | sort: "spot" %}
+{% if event.groupId -%}
+{%- assign talks = site.posts | where: "group", event.groupId | sort: "spot" -%}
 {%- capture desc -%}
-  {% unless event.groupId == 'key-open' or event.groupId == 'key-close' %}
+  {%- unless event.groupId == 'key-open' or event.groupId == 'key-close' -%}
     {{ event.title }} ({{talks | size}} talks):
-  {% endunless %}
+  {%- endunless -%}
 {%- endcapture -%}
 DESCRIPTION: {{ desc | strip }}\n\n
-  {% for talk in talks %}
+  {%- for talk in talks -%}
  {{ talk.speaker-text }}\n
  {{ talk.title }} ({{ talk.length }} minutes)\n
  {{ talk.url | absolute_url }}\n\n
-  {% endfor %}
-{% endif %}
-{% if event.link %}
+  {%- endfor -%}
+{%- endif -%}
+{%- if event.link -%}
 DESCRIPTION: {{event.button_label}}\n {{event.link}}
-{% endif %}
+{%- endif %}
 DTSTART;TZID=America/New_York:{{include.date}}T{{times[0]}}00
 DTEND;TZID=America/New_York:{{include.date}}T{{times[1]}}00
-{% comment %}LOCATION:http://example.org/TODO{% endcomment %}
+{%- comment %}LOCATION:http://example.org/TODO{%- endcomment %}
 END:VEVENT
-{% endif %}
-{% endfor %}
+{% endif -%}
+{%- endfor -%}

_includes/calendar.ics

@@ -1,21 +1,21 @@
 BEGIN:VCALENDAR
 CALSCALE:GREGORIAN
 VERSION:2.0
-{% if include.livestream %}
-{% assign ver = "livestream" %}
-{% else %}
-{% assign ver = "in-person" %}
-{% endif %}
+{% if include.livestream -%}
+{%- assign ver = "livestream" -%}
+{%- else -%}
+{%- assign ver = "in-person" -%}
+{%- endif -%}
 X-WR-CALNAME:Code4Lib {{ site.data.conf.year }} {{ ver }}
-{% assign day1_date = site.data.conf.days[1].date-data | date: "%Y%m%d" %}
-{% assign day1_events = site.data.schedule | where: "day1", true | where: "livestream", include.livestream %}
-{% include calendar-day.ics date=day1_date events=day1_events %}
+{%- assign day1_date = site.data.conf.days[1].date-data | date: "%Y%m%d" -%}
+{%- assign day1_events = site.data.schedule | where: "day1", true | where: "livestream", include.livestream -%}
+{%- include calendar-day.ics date=day1_date events=day1_events -%}
 
-{% assign day2_date = site.data.conf.days[2].date-data | date: "%Y%m%d" %}
-{% assign day2_events = site.data.schedule | where: "day2", true | where: "livestream", include.livestream %}
-{% include calendar-day.ics date=day2_date events=day2_events %}
+{%- assign day2_date = site.data.conf.days[2].date-data | date: "%Y%m%d" -%}
+{%- assign day2_events = site.data.schedule | where: "day2", true | where: "livestream", include.livestream -%}
+{%- include calendar-day.ics date=day2_date events=day2_events -%}
 
-{% assign day3_date = site.data.conf.days[3].date-data | date: "%Y%m%d" %}
-{% assign day3_events = site.data.schedule | where: "day3", true | where: "livestream", include.livestream %}
-{% include calendar-day.ics date=day3_date events=day3_events %}
+{%- assign day3_date = site.data.conf.days[3].date-data | date: "%Y%m%d" -%}
+{%- assign day3_events = site.data.schedule | where: "day3", true | where: "livestream", include.livestream -%}
+{%- include calendar-day.ics date=day3_date events=day3_events -%}
 END:VCALENDAR