On 2023-10-18 18:24:48 +0000, Hiep Pham wrote:
> Hi,
> 
> I want to bump `jsonnet` version from 0.17.0 to 0.20.0 from the master 
> branch of the `guix` repository. I edited the version in 
> `gnu/packages/cpp.scm`:
> 
> (define-public jsonnet
>    (package
>      (name "jsonnet")
>      (version "0.20.0")
>      [snip]
>    ))

FYI You will need to do some more changes, just version bump sadly does not
build:

    $ guix shell jsonnet --no-offload --with-version=jsonnet=0.20.0
    guix shell: warning: cannot authenticate source of 'jsonnet', version 0.20.0
    updating checkout of 'https://github.com/google/jsonnet'...
    retrieved commit f45e01d632b29e4c0757ec7ba188ce759298e6d3
    The following derivation will be built:
      /gnu/store/d5pndfws378w22c7580fm4w517hfrn1r-jsonnet-0.20.0.drv
    
    building /gnu/store/d5pndfws378w22c7580fm4w517hfrn1r-jsonnet-0.20.0.drv...
     63% ▕███████████████████████████████████████████████████████████████████████████████████████████████████████████████████▉                                                                    ▏builder for `/gnu/store/d5pndfws378w22c7580fm4w517hfrn1r-jsonnet-0.20.0.drv' failed with exit code 1
    build of /gnu/store/d5pndfws378w22c7580fm4w517hfrn1r-jsonnet-0.20.0.drv failed
    View build log at '/var/log/guix/drvs/d5/pndfws378w22c7580fm4w517hfrn1r-jsonnet-0.20.0.drv.gz'.
    guix shell: error: build of `/gnu/store/d5pndfws378w22c7580fm4w517hfrn1r-jsonnet-0.20.0.drv' failed
    
> 
> *How do I test building/installing this change locally?*
> Here what I tried so far:
> 
> 1. Standing at the root of the `guix` repository, build with:
> 
> guix build -L . jsonnet
> 
> This failed:
> 
> ```
> guix build: warning: failed to load '(build-aux build-self)': 
>  
> 
> no code for module (build-aux build-self) 
>  
> 
> ./build-aux/build-self.scm:19:0: warning: module name (build-self) does 
> not match file name 'build-aux/build-self.scm' 
> 
> hint: File `./build-aux/build-self.scm' should probably start with: 
>  
> 
>  
>  
> 
>       (define-module (build-aux build-self)) 
>  
> 
>  
>  
> 
> guix build: All 92 channel news entries are valid. 
>  
> 
> guix build: warning: failed to load '(build-aux check-channel-news)': 
>  
> 
> no code for module (build-aux check-channel-news) 
>  
> 
> hint: File `./build-aux/check-channel-news.scm' should probably start 
> with: 
> 
>  
>  
> 
>       (define-module (build-aux check-channel-news)) 
>  
> 
> 
> [snip] 
> 
> 
> guix build: warning: failed to load '(build-aux compile-all)':
> ```
> 
> 2. Followed the contributing guide [1], I created a shell instead:

I believe this is the preferred way.

> 
> guix shell -C -D guix git help2man strace
> ./bootstrap
> ./configure --localstatedir=/var

I would recommend to use

    ./configure --localstatedir=/var --sysconfdir=/etc

as described in the latest version of the manual:

https://guix.gnu.org/manual/devel/en/html_node/Building-from-Git.html

(notice the /devel/ in the path).  Your version is from 1.4.0 version of the
manual and it has some limitations.

> 
> This generated `pre-inst-env`, but `make` step failed with:
> 
> ```
>    MAKEINFO doc/guix.de.info
> contributing.de.texi:1659: @menu reference to nonexistent node 
> `Configuring Git'
> contributing.de.texi:1660: @menu reference to nonexistent node `Sending 
> a Patch Series'
> make[2]: *** [Makefile:5003: doc/guix.de.info] Error 1
> ```

Yes, this happens when you try to build guix source using too old guix version.
So try to run `guix pull' first and then attempt to compile it again.  It should
succeed.

> 
> So I was blocked to progress further :(
>

After that the pre-inst-env should work.

> 
> [1] https://guix.gnu.org/manual/en/guix.html#Contributing
> 
> -- 
> Hiep
> 
> 

W.

-- 
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.