I'm having difficulty with the FilePath#installIfNecessary API in Jenkins.
This is a pretty minimal reproduction attempt, which fails outside of Jenkins in the same way that it does from my plugin.
It implements a tool which uses the FilePath API to download a .tar.gz file and extract it to a temporary directory. This is essentially what a tool installer does in Jenkins.
Using this API seems to fail with a certain set of .tar.gz files, regardless of where the file is downloaded from (the official Google distribution server, a personal server of mine, or from localhost).
The error message is usually Failed to unpack <url> (153358 bytes read of total 76218682), where the number of bytes read can vary between multiple runs with the same URL.
These files can be downloaded (and subsequently extracted) successfully with wget, but fail when downloaded using FilePath.
The following URLs of Go distributions have been tested with this program:
| Go version | Status |
|---|---|
| 1.6.2 | Fails |
| 1.6.1 | Fails |
| 1.6 | Fails |
| 1.5.4 | Fails |
| 1.5.3 | Fails |
| 1.5.2 | Fails |
| 1.5.1 | Succeeds |
| 1.5 | Succeeds |
| 1.4.3 | Fails |
| 1.4.2 | Succeeds |
| 1.4.1 | Succeeds |
| 1.4 | Succeeds |
The same results have been achieved on both OS X 10.11.4 and Ubuntu 14.04.3.
To run with a default URL (Go 1.6.2):
./gradlew run
To run with a custom URL:
./gradlew run -Pargs=https://example.com/some-file.tgz