Add link to Travis build

inst/testscripts/comment.R

@@ -47,7 +47,8 @@ system("git add index.html")
 system("git add tables/*/*.html")
 system("git add data/*/*.png")
 system("git add data/*/*.log")
-commit_msg <- paste0('"Pushed from https://travis-ci.org/ropensci/plotly/builds/"', a[2])
+build_link <- paste0('https://travis-ci.org/ropensci/plotly/builds/', a[2])
+commit_msg <- paste0('"Pushed from ', build_link, '"')
 system(paste('git commit -m', commit_msg))
 # This post explains how this works -- http://rmflight.github.io/posts/2014/11/travis_ci_gh_pages.html
 repo <- sprintf("https://%s@github.com/ropensci/plotly-test-table.git", a[4])
@@ -59,7 +60,7 @@ system(paste("git push -q", repo, "gh-pages"))
 tbl_link <- sprintf("http://ropensci.github.io/plotly-test-table/tables/%s/index.html", a[3])
 msg <- sprintf("On TravisCI, commit %s was successfully merged with %s (master) to create %s. A visual testing table comparing %s with %s can be found here:\n %s", 
                info$head$sha, info$base$sha, a[3], info$base$sha, a[3], tbl_link)
-msg <- paste("> The message below was automatically generated \n\n", msg)
+msg <- paste("> The message below was automatically generated after build", build_link, "\n\n", msg)
 commentz <- sprintf(paste0(base, 'issues/%s/comments'), a[1])
 res <- GET(commentz, header)
 warn_for_status(res)