--branch xyz fails with 'remote hung up unexpectedly' on ssh:// urls

[jasperstein]

steps

No steps required.
sbt 1.5.0.

problem

sbt new fails when using the --branch switch on an ssh://... protocol g8 template, e.g.:

% sbt new ssh://git@github.com/scala/scala-seed.g8.git
>>> -no problem-

% sbt new ssh://git@github.com/scala/scala-seed.g8.git --branch 2.12.x
[...]
ssh://git@github.com/scala/scala-seed.g8.git: remote hung up unexpectedly

(More details in stack trace)

stack trace

% sbt -v new ssh://git@github.com/scala/scala-seed.g8.git --branch 2.12.x
[sbt_options] declare -a sbt_options=()
[process_args] java_version = '15'
[copyRt] java9_rt = '/Users/jasperstein/.sbt/1.0/java9-rt-ext-n_a_15_0_2/rt.jar'
# Executing command line:
java
-Dfile.encoding=UTF-8
-Xms1024m
-Xmx1024m
-Xss4M
-XX:ReservedCodeCacheSize=128m
-Dscala.ext.dirs=/Users/jasperstein/.sbt/1.0/java9-rt-ext-n_a_15_0_2
-jar
/usr/local/Cellar/sbt/1.5.0/libexec/bin/sbt-launch.jar
new
ssh://git@github.com/scala/scala-seed.g8.git
--branch
2.12.x

[info] welcome to sbt 1.5.0 (N/A Java 15.0.2)
[info] loading settings for project global-plugins-build-build-build from metals.sbt ...
[info] loading global plugins from /Users/jasperstein/.sbt/1.0/plugins/project/project/project
[info] loading settings for project global-plugins-build-build from metals.sbt ...
[info] loading global plugins from /Users/jasperstein/.sbt/1.0/plugins/project/project
[success] Generated .bloop/global-plugins-build-build.json
[success] Total time: 0 s, completed 26 apr. 2021 12:30:07
[info] loading settings for project global-plugins-build from build.sbt ...
[info] loading global plugins from /Users/jasperstein/.sbt/1.0/plugins/project
[success] Generated .bloop/global-plugins-build.json
[success] Total time: 0 s, completed 26 apr. 2021 12:30:08
[info] loading global plugins from /Users/jasperstein/.sbt/1.0/plugins
[info] loading project definition from /Users/jasperstein/tmp/project
[info] set current project to tmp (in build file:/Users/jasperstein/tmp/)
[info] set current project to tmp (in build file:/Users/jasperstein/tmp/)

ssh://git@github.com/scala/scala-seed.g8.git: remote hung up unexpectedly

expectation

The specified branch of scala-seed.g8 is used to generate a seed project

notes

[jasperstein]

This seems to be a problem on sbt only, not on 'bare' g8. g8 ssh://git@github.com/scala/scala-seed.g8.git --branch 2.12.x works fine.

[jasperstein]

This problem appears to have been introduced in sbt 1.3.13

[TonioGela]

@jasperstein, can you please test this fix? Instructions are provided, and you just need coursier and sbt to build it.

[jasperstein]

@jasperstein, can you please test this fix? Instructions are provided, and you just need coursier and sbt to build it.

Hi Tonio, thanks for looking into this! I've tried building it locally but it won't on my machine, sorry. (Compile / compileIncremental) java.io.IOError: java.lang.RuntimeException: /packages cannot be represented as URI I am still something of an sbt n00b so maybe there's something easy and obvious-for-you-but-not-for-me that I could try?

However since your fix will produce an experimental version of g8 not sbt, the only thing I can test is whether this doesn't break g8. On a bare g8, --branch works well with ssh:// urls; it's just that sbt new won't. Or could I easily make an experimental version of sbt too, including this fix?

[TonioGela]

Argh, I admit that I got confused while I was linking issues to my PR. In fact, this issue might be related to sbt and not to g8, particularly how sbt parses command-line options after new, but I'm totally guessing.
I thought that it could have been related to ssh private keys and/or configurations, while that's clearly not the case since (as you said) with bare g8 this works.
Sorry for giving you false hopes, I swear that I'll try to address this issue too when the one I'm working on gets fixed.
Btw it might be worth opening an issue on sbt, too and link this one probably.

[jasperstein]

I'm pretty certain :-) [image: image.png] Op do 10 jun. 2021 om 13:28 schreef Antonio Gelameris < ***@***.***>:

…

I just tested the current stable of g8 the 0.13.1 locally, and it fails: $ g8 ***@***.***/scala/scala-seed.g8.git --branch 2.12.x ***@***.***/scala/scala-seed.g8.git: invalid privatekey: ***@***.*** @jasperstein <https://github.com/jasperstein>, are you sure that with bare g8, the previous command works? A double-check might be handy. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#546 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAYFURLE2XQ3MQFFKLJ4VFTTSCOUNANCNFSM43STD32Q> .

[jasperstein]

Huh. Apparently the image didn't get through via email (and the msg to which it was a reply also seems gone?). Here it is for reals, if at least it works this time :-)

[TonioGela]

Yeah, I removed the message sometime after writing since I realized that it was indeed working 👍