Makefile publish gist snippet

publish_gist.mk

#  $(call publish_gist,<access_token>,<filename>,<description>[,gist_hash])

define publish_gist
  cat $(2) |\
  awk -v description="$(3)" \
      -v filename="$(2)" \
      'BEGIN {\
      ORS = "";\
      print("{");\
      printf("\"description\": \"%s\",",description);\
      printf("\"public\": %s,","true");\
      print("\"files\": {");\
      printf("\"%s\": {",filename);\
      print("\"content\": \"");\
    } { \
      gsub(/\\/, "\\\\", $$0);\
      gsub(/"/, "\\\"", $$0);\
      printf("%s\\n", $$0);\
    } END { \
      print("\"}}}"); \
    }' |\
  curl 'https://api.github.com/gists/$(4)?access_token=$(1)' \
  --request POST \
  --header "Content-Type: application/json" \
  --data @- 2>/dev/null |\
  grep 'raw_url' |\
  awk -F'"' '{print "remote_url "$$4}'
endef