Trying to run the build_all.sh script with a nimble package install throws error

[jyapayne]

When trying to build the latest Nim devel with the "new-style" nimble package names, this error occurs:

> sh build_all.sh
bin/nim_csources_9a7f751d23c49c75a0b6f63a234c575dc0df7231 exists.

cmd: rm -f bin/nim

cmd: cp bin/nim_csources_9a7f751d23c49c75a0b6f63a234c575dc0df7231 bin/nim

cmd: bin/nim_csources_9a7f751d23c49c75a0b6f63a234c575dc0df7231 -v
Nim Compiler Version 1.0.11 [MacOSX: arm64]
Compiled at 2020-12-21
Copyright (c) 2006-2019 by Andreas Rumpf

git hash: 19440baa807bbda58290ac9d491c9aa8a2bea2fa
active boot switches: -d:release -d:danger

cmd: bin/nim c --skipUserCfg --skipParentCfg --hints:off koch
/Users/joey/Nim/config/nim.cfg(51, 1) Error: invalid package name: /Users/joey/.nimble/pkgs/nake-1.9.4-c05485d3fe838ad2a5baee52bdb56cbcda22364e

Expected Output

Should run the build script without errors.

Additional information

This causes the Nim compiler to be overwritten with the csources version.

Workaround

Rename the .nimble directory and rerun the build script.

$> nim -version
Nim Compiler Version 1.5.1 [MacOSX: arm64]
Compiled at 2021-09-12
Copyright (c) 2006-2021 by Andreas Rumpf

git hash: 5d1608c9764416e74b36f6a772f16a66d58ddc28
active boot switches: -d:release

$> nimble --version
nimble v0.13.1 compiled at 2021-09-12 15:53:20
git hash: 795704833ddfd0cdaefb45c60551d3ea205279ef

[kaushalmodi]

Recently after an update on nim devel, I was forced to delete my ~/.nimble and I had to reinstall all the nimble packages. This time, I noticed that all the package dirs in .nimble got suffixed with some sort of hash.

But now future builds of nim are failing with the same error reported above.

Nim Compiler Version 1.5.1 [Linux: amd64]
Compiled at 2021-09-09
Copyright (c) 2006-2021 by Andreas Rumpf

git hash: a896f9f19eec221b8651849297bdbc8be72b00af
active boot switches: -d:release

Error:

cmd: rm -f bin/nim

cmd: cp bin/nim_csources_9a7f751d23c49c75a0b6f63a234c575dc0df7231 bin/nim

cmd: bin/nim_csources_9a7f751d23c49c75a0b6f63a234c575dc0df7231 -v
Nim Compiler Version 1.0.11 [Linux: amd64]
Compiled at 2020-12-21
Copyright (c) 2006-2019 by Andreas Rumpf

git hash: 19440baa807bbda58290ac9d491c9aa8a2bea2fa
active boot switches: -d:release -d:danger

cmd: bin/nim c --skipUserCfg --skipParentCfg --hints:off koch
/home/kmodi/downloads/git/Nim/config/nim.cfg(51, 1) Error: invalid package name: /home/kmodi/.nimble/pkgs/cligen-1.5.18-eeb4c230d76e328c00f1687f7da1f577cb485469

---

Workaround

Temporarily moving out the ~/.nimble seems to work. Below is an excerpt from my nim build script:

    # Workaround for https://github.com/nim-lang/Nim/issues/18840 .. move out the ~/.nimble
    # when running build_all.sh and then move it back.
    if [[ -d "${HOME}/.nimble" ]]
    then
        mv "${HOME}/.nimble" "${HOME}/.nimble.bkp"
    fi
    sh build_all.sh # https://github.com/nim-lang/Nim/issues/17907#issuecomment-831654235
    if [[ -d "${HOME}/.nimble.bkp" ]]
    then
        mv "${HOME}/.nimble.bkp" "${HOME}/.nimble"
    fi

[kaushalmodi]

Ref #18810 @narimiran