repository_ctx.execute() does not support uploading of files from the source tree. I initially tried constructing a command that simply embeds the file's contents. However that did not work on Windows because the file is larger than 8192 characters. So my best idea was to compress it locally and embed the compressed contents in the command and to uncompress it remotely. This works but comes with the drawback that we need to compress it first. This can't be done as part of the repository_rule either because within one repository_rule every execute() runs either locally or remotely. I thus decided to check in the compressed version in the source tree. It's very much a temporary measure as I'll add the ability to upload files to a future version of Bazel.
PiperOrigin-RevId: 295787408
Change-Id: I1545dd86cdec7e4b20cba43d6a134ad6d1a08109
