DMisener (orginal) [2023-09-10T02:18:12+02:00] view original

Problem:

I do my Nim development in a directory /Users/DM/work/trunk/nim.

If from that directory, I use nimble to install a module.
- it does install, but I am not able to import it :-(.

Any pointers/suggestions would be truely appreciated.


- Example:
        - pwd
           /Users/DM/work/trunk/nim
        - nimble list -i   # *No previously existing entry*
           Warning: Using project local deps mode
        - nimble install db_connector
           Warning: Using project local deps mode
           Downloading https://github.com/nim-lang/db_connector using git
           Warning: The package has no tagged releases, downloading HEAD instead.
           Verifying dependencies for [email protected]
           Installing [email protected]
           Success:  db_connector installed successfully
        - nimble list -i     # *Yes it is installed*
          Warning: Using project local deps mode
          
          db_connector  [(version: 0.1.0, checksum: 05c335ec678614b973d8a80651971e0719045d14)]
        
        - inim     # *Now try to import it*
          Nim 0.6.1
          Nim Compiler Version 2.0.0 [MacOSX: amd64] at /usr/local/bin/nim
          nim> import db_connector
          
          /private/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/inim_1694301779.nim(8,
              8) Error: cannot open file: db_connector     # Can't find it :-(
        
        - Checking where the files were actually installed:
                - Macintosh HD
                        - Users
                                - DM   # My user directory
                                        - work
                                                - trunk
                                                        - nim
                                                                - nimbledeps
                                                                        - pkgs2
                                                                                - db_connector-0.1.0-...
                                                                                  db_connector.nimble

# Background:

nim -v Nim Compiler Version 2.0.0 [MacOSX: amd64] Compiled at 2023-08-01 Copyright (c) 2006-2023 by Andreas Rumpf active boot switches: -d:release -d:nimUseLinenoise

nimble -v
Warning: Using project local deps mode nimble v0.14.2 compiled at 2023-08-01 01:01:02

git hash: couldn't determine git hash
- I'm not sure what the last part signifies

echo $NIMBLE_PATH => empty

4n0n4me (orginal) [2023-09-10T04:39:24+02:00] view original

The document seems to imply that you need to import one of db_mysql, db_odbc, db_sqlite, db_postgres: https://nim-lang.org/docs/db_mysql.html

DMisener (orginal) [2023-09-10T09:05:58+02:00] view original

Thanks. I tried that too. But no luck.


inim
👑 INim 0.6.1
Nim Compiler Version 2.0.0 [MacOSX: amd64] at /usr/local/bin/nim

nim> import db_sqlite
/private/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/inim_1694328954.nim(8, 8) Error: cannot open file: db_sqlite

import dbconnector/db_sqlite
/private/var/folders/8l/vhg5vggj04g77ny91mlgzn680000gn/T/inim_1694329501.nim(8, 19) Error: cannot open file: dbconnector/db_sql

SolitudeSF (orginal) [2023-09-10T09:28:34+02:00] view original

import db_connector/db_sqlite

DMisener (orginal) [2023-09-10T10:51:25+02:00] view original

Thanks... your are very correct...but I as reported above... that doesn't work for me either.

In desperation I manually relocated the installed files from ...pkgs2 to ~/.nimble/pkgs and ...


inim
👑 INim 0.6.1
Nim Compiler Version 2.0.0 [MacOSX: amd64] at /usr/local/bin/nim
nim> import db_connector/db_sqlite
nim> let db = open("localhost", "user", "password", "dbname")
nim> db.close()
nim> quit

So my current question is:

Why Nim (on my machine) can't locate Nimble installed packages from where nimble installed them?

I'm thinking some messed up configuration on my part... but I don't remember doing any :-(

Any suggestions on trouble shooting this?

Araq (orginal) [2023-09-10T10:55:25+02:00] view original

Edit your nim.cfg the line that says nimblepath="$home/.nimble/pkgs2/"

SolitudeSF (orginal) [2023-09-10T12:11:37+02:00] view original

in your snippet above you're not importing db_connector/db_sqlite

DMisener (orginal) [2023-09-11T04:08:33+02:00] view original

Thanks Araq.

$home isn't oddly isn't defined my zsh shell:


echo "*${home}*"
**

I tried try creating a nim.cfg in my home (/Users/DM) directory with


nimblepath="/Users/DM/.nimble/pkgs2/"

(BTW there wasn't already one)

and it made no difference.

I also did likewise in the repository directory (/Users/DM/work/trunk/nim)

I also interated on on both /pkgs and /pkgs2 for nimblepath with no change :-(

---

Just to clarify, I supplied a little more detail hoping it might shed some light on this particular anomaly.

Working repository tree:


pwd
/Users/DM/work/trunk/nim

There are no overriding nim.cfg., nimble* or nimbledep*


ls -la nim*.cfg
zsh: no matches found: *.cfg
ls -ls nimble*.*
zsh: no matches found: nimble*.*

Nimble Tree:


tree --charset ascii -L 1 ~/.nimble

/Users/DM/.nimble
\|-- bin
\|-- nimbledata2.json
\|-- pkgs
\\`-- pkgs2

Current contents of pkgs: (historically installed by Nim 1.6.x and earlier versions nimble);


/Users/DM/.nimble/pkgs
\|-- ansiparse-0.2.0
\|-- argparse-3.0.0
\|-- at-0.1.0
\|-- balls-3.3.7
\|-- base-3.5.1
\|-- bearssl-0.1.5
\|-- benchy-0.0.1
\.\.\.
\|-- with-0.4.0
\|-- ws-0.5.0
\|-- yaml-1.1.0
\|-- zippy-0.10.10
\`-- zstd-0.6.0

The above pkgs2 subdirectory is empty


ls .nimble/pkgs2
<< No files/directories listed>>

Findings:

The previously installed modules are accessible via Nim's import.


inim
INim 0.6.1
Nim Compiler Version 2.0.0 [MacOSX: amd64] at /usr/local/bin/nim
nim> import argparse
nim> import benchy
nim> exit

So far... so good.... but Nimble itself doesn't seem to know about the previously installed packages!!!


nimble list -i
<< doesn't list anything>>
nimble path argparse
nimble.nim(912)          listPaths
    
    Error:  At least one of the specified packages was not found

nimble path benchy
nimble.nim(912)          listPaths
    
    Error:  At least one of the specified packages was not found

If I use nimble to install a new module:


cd ~

nimble install db_connector
Downloading https://github.com/nim-lang/db_connector using git
   Warning: The package has no tagged releases, downloading HEAD instead.
  Verifying dependencies for [email protected]
 Installing [email protected]
  Success:  db_connector installed successfully.

Nimble globally knows about it :-)


nimble list -i
db_connector  [(version: 0.1.0, checksum: 05c335ec678614b973d8a80651971e0719045d14)]

cd ~/work/trunk/nim

nimble list -i
db_connector  [(version: 0.1.0, checksum: 05c335ec678614b973d8a80651971e0719045d14)]

And so does Nim :-)


inim
INim 0.6.1
Nim Compiler Version 2.0.0 [MacOSX: amd64] at /usr/local/bin/nim
nim> import db_connector/db_sqlite
nim> exit

My question is now:

How to I get Nimble to recognize the existence of previously installed pkgs as well as the newly install pkgs2.

I naively tried copying the contents of pkgs into pkgs2 but no joy.


nimble list -i
       Tip: 1 messages have been suppressed, use --verbose to show them.
tables.nim(235)          raiseKeyError
    
    Error:  key not found: metaData

Thanks to all who are helping me with this... hopefully we can get to the bottom it.

DMisener (orginal) [2023-09-11T04:16:08+02:00] view original

Thanks... see my recent update for a little more clarification. The anomally seems center on nimble installs from earlier and currrent version of Nim/Nimble ... (Which does seems very unlikely since no-one else is having this issue)... but maybe you can find the hole in analysis to date. I am suspecting some historically mangled configuration/corruption which I am not aware of... but that is just hunch (I did check all paths for possible nim.cfg / nimbledep .... overrides.

janAkali (orginal) [2023-09-11T05:05:42+02:00] view original

https://nim-lang.org/blog/2023/08/01/nim-v20-released.html

Tool changes

Nim now ships Nimble version 0.14 ... Libraries are stored in $nimbleDir/pkgs2 (it was $nimbleDir/pkgs before). Use nimble develop --global to create an old style link file in the special links directory documented here.

Essentially, 'pkgs' directory is for Nim 1.0, 'pkgs2' is for Nim 2.0. If you don't use Nim 1.0, delete modules in the old 'pkgs' directory and reinstall everything you need with nimble.

SolitudeSF (orginal) [2023-09-11T07:43:28+02:00] view original

i had similiar problem when switching from 0.13 to 0.14 nimble. i ended up just doing what @janAkali proposes. it is not your misconfiguration, the support for both pkgs directories is just too hacky. deleting pkgs and reinstalling packages would be the best course of action.

didlybom (orginal) [2023-09-11T15:13:12+02:00] view original

Same problem here. I ended up deleting the contents of the pkgs directory. I then had to use the -f argument to recompile some of my projects to avoid some remaining errors.

DMisener (orginal) [2023-09-11T19:40:49+02:00] view original

Would you/anyone happen to have a link to release notes, or some other artefact that I should have reviewed before upgrading to V2 and its associated toolset? I’ve had so few problems with backwards compatibility to-date that I think I’ve become quite complacent / lazy :-(

I can’t be the only one bitten by this!

Araq (orginal) [2023-09-11T19:59:46+02:00] view original

We can update the release notes but this problem wasn't known to me and so did see very little coverage in the notes. Sorry.

DMisener (orginal) [2023-09-12T15:32:57+02:00] view original

No need to be sorry… But you did dispell my notion that you were omniscient :-)

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Problem:

Working repository tree:

Nimble Tree:

Findings: