Running FFMPEG Binary From within Bazel

[Alexander N]

Hello,

I am currently working on a nodejs project that is using eleventy to compile a bunch of static sites together.  I have figured out to configure bazel to call eleventy directly through an npm_bin but the project I am converting to bazel calls ffmpeg directly (I believe through some dependency).  Is there a way to have ffmpeg called through bazel?  I have ffmpeg installed on my machine but it is not finding the command within bazel.  Any advice is much appreciated!

Thanks!

[Alexandre Rostovtsev]

The simplest solution would be a genrule to call ffmpeg. See https://docs.bazel.build/versions/master/be/general.html#genrule

Note that if you are using an ffmpeg package provided by your distro, your build might not be perfectly reproducible because that package can get auto-updated, and the new ffmpeg version's output might be slightly different.

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[Alexander N]

Unfortunately, FFMPEG is required in one of the NPM modules. I was hoping to use the system FFMPEG but the bazel command for modules.  Otherwise, i think I may be rewriting the nodejs_buildrules myself.

On Saturday, June 13, 2020 at 8:22:39 AM UTC-7, Alexandre Rostovtsev wrote:

The simplest solution would be a genrule to call ffmpeg. See https://docs.bazel.build/versions/master/be/general.html#genrule

Note that if you are using an ffmpeg package provided by your distro, your build might not be perfectly reproducible because that package can get auto-updated, and the new ffmpeg version's output might be slightly different.

On Sat, Jun 13, 2020 at 12:39 AM Alexander N <alex....@gmail.com> wrote:

Hello,

I am currently working on a nodejs project that is using eleventy to compile a bunch of static sites together.  I have figured out to configure bazel to call eleventy directly through an npm_bin but the project I am converting to bazel calls ffmpeg directly (I believe through some dependency).  Is there a way to have ffmpeg called through bazel?  I have ffmpeg installed on my machine but it is not finding the command within bazel.  Any advice is much appreciated!

Thanks!

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[Kyle Cordes]

(Caveat, I am definitely not sure of this:)

If you package up the ffmpeg binary as a NPM package, and declare dependency on it, that binary may be available to other NPM packages. This would be a smaller step off the mainline path, compared to a fork of nodejs_buildrules

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Kyle Cordes

kyle....@oasisdigital.com