Copybara is stuck on the initial run

[pho...@google.com]

I'm trying to use Copybara to copy a portion of https://github.com/llvm/llvm-project into a separate repository, specifically I'd like to copy https://github.com/llvm/llvm-project/tree/master/compiler-rt/lib/scudo/standalone to https://github.com/petrhosek/scudo. I have the following configuration file:

core.workflow(

    name = "scudo",

    mode = "ITERATIVE",

    origin = git.github_origin(

        url = "https://github.com/llvm/llvm-project.git",

        ref = "master",

    ),

    destination = git.github_destination(

        url = "g...@github.com:petrhosek/scudo.git",

    ),

    authoring = authoring.pass_thru("Default email <def...@default.com>"),

    origin_files = glob(["compiler-rt/lib/scudo/standalone/**"]),

    destination_files = glob(["**"]),

    transformations = [

        core.move("compiler-rt/lib/scudo/standalone", ""),

    ],

)

I run Copybara as follows:

$ ./copybara/bazel-bin/java/com/google/copybara/copybara copy.bara.sky --init-history --ignore-noop scudo master

When I run this, I get the following output:

Copybara source mover (Version: Unknown version)

Task: Git Destination: Fetching: g...@github.com:petrhosek/scudo.git refs/heads/master

After this, Copybara just sits there and does nothing. I left it running for a day and didn't get any other output. I also tried running Copybara in the verbose and I see the following output:

...

Executing [git '--git-dir=/home/phosek/copybara/cache/git_repos/https%3A%2F%2Fgithub%2Ecom%2Fllvm%2Fllvm-project%2Egit' describe -- 531f9e92d4d06d5cb1f250754c68e7d3b420df50]

fatal: No tags can describe '531f9e92d4d06d5cb1f250754c68e7d3b420df50'.

Try --always, or create some tags.

Command 'git' finished in 00:00.159. Process exited with status 128

Executing [git '--git-dir=/home/phosek/copybara/cache/git_repos/https%3A%2F%2Fgithub%2Ecom%2Fllvm%2Fllvm-project%2Egit' describe --always -- 531f9e92d4d06d5cb1f250754c68e7d3b420df50]

531f9e92d4d

Command 'git' finished in 00:00.155. (No exit status)

Executing [git init --bare]

Reinitialized existing Git repository in /home/phosek/copybara/cache/git_repos/https%3A%2F%2Fgithub%2Ecom%2Fllvm%2Fllvm-project%2Egit/

Command 'git' finished in 00:00.004. (No exit status)

Executing [git config --local credential.helper store]

Command 'git' finished in 00:00.002. (No exit status)

Executing [git '--git-dir=/home/phosek/copybara/cache/git_repos/https%3A%2F%2Fgithub%2Ecom%2Fllvm%2Fllvm-project%2Egit' describe -- 31c8a9d41a2cdd7322ea8f04049ab8d583f2e694]

fatal: No tags can describe '31c8a9d41a2cdd7322ea8f04049ab8d583f2e694'.

Try --always, or create some tags.

Command 'git' finished in 00:00.163. Process exited with status 128

Executing [git '--git-dir=/home/phosek/copybara/cache/git_repos/https%3A%2F%2Fgithub%2Ecom%2Fllvm%2Fllvm-project%2Egit' describe --always -- 31c8a9d41a2cdd7322ea8f04049ab8d583f2e694]

31c8a9d41a2

Command 'git' finished in 00:00.155. (No exit status)

Executing [git init --bare]

Reinitialized existing Git repository in /home/phosek/copybara/cache/git_repos/https%3A%2F%2Fgithub%2Ecom%2Fllvm%2Fllvm-project%2Egit/

Command 'git' finished in 00:00.004. (No exit status)

Executing [git config --local credential.helper store]

Command 'git' finished in 00:00.002. (No exit status)

Executing [git '--git-dir=/home/phosek/copybara/cache/git_repos/https%3A%2F%2Fgithub%2Ecom%2Fllvm%2Fllvm-project%2Egit' describe -- fb972add4f91522dd418734318554ca704c4cd8e]

fatal: No tags can describe 'fb972add4f91522dd418734318554ca704c4cd8e'.

Try --always, or create some tags.

Command 'git' finished in 00:00.156. Process exited with status 128

...

This just seems to be repeated over and over without any further progress.

Does anyone see any issue with my configuration? Is there anything else I could try to debug this?

[Miguel Alcon]

Could you paste the full log? The git describe thing is done 3-4 times but after that we do other stuff.

Also we have a log file that has more information, in the OSS copybara we record here https://github.com/google/copybara/blob/master/java/com/google/copybara/Main.java#L478 . But make sure you are not sharing confidential information. Feel free to ping me internally and I can summarize here my findings.

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[Miguel Alcon]

K, my fault. You can set git.origin(describe_version = False) for now

[pho...@google.com]

That worked! Thanks a lot.

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