Hi,

I'm having a little trouble loading a specific version of a package in my Rivet based website.

I have a package called Lockfile 1.0 which was originally part of the website base code. That lives in a directory titled "3rdparty". During the ChildInitScript (called "childboot.tcl") this directory is added to the auto_path -

namespace eval ::Website {

    variable website        ; # Where all library and site configuration is stored.

    try {
    #
    # Setup the library directories.
    #
    set website(basedir) [file dir [info script]]
    set website(logdir)  [file join $website(basedir) .. log]
    set website(libdir) [file join $website(basedir) lib]
* set website(3rdpartydir) [file join $website(basedir) .. 3rdparty]*
    set website(tmpdir) [file join $website(basedir) .. tmp]
..............................................................................................
    #
    # Set the path for loading tclIndex files. This is all we need and the rest of the library     # will load. Any source directories in the website configuration should be in     # website(SourceDirs) after content is loaded, and we'll set those after.
    #
    lappend ::auto_path [file normalize $website(libdir)]
    if {[file isdirectory $website(3rdpartydir)]} {
*lappend ::auto_path [file normalize $website(3rdpartydir)]*
    }

Further down this script calls the childinit.tcl which loads the website content, opens data bases etc and three of those modules "package require Lockfile" and away it goes and just works.

Well it did, until I installed a Lockfile 1.1 package independently in /usr/local/lib/tcltk. This was a more recent version and I was using it with some other tools not related to the Rivet website. This library was not completely compatible with the version sitting alongside the Rivet website, but all good - I'd changed the version number to 1.1.

Over on the website the incompatible library caused the Apache threads to run at 50% CPU and it sat there and span its wheels. The old Lockfile automatically waited but the new one doesn't so the database maintenance threads were running as fast as the CPU would let them. The new 1.1 library has a -wait option so as to act like the old version.

So I thought easy - require Lockfile 1.0, and the package can be loaded out of the 3rdparty directory like it did before -

namespace eval ::TicketMaster {

    package require Thread
    package require sha1
    package require -exact Lockfile 1.0

But no, now it fails with a complaint that it needs 1.0 but it has 1.1, with the 1.1 being the package over in /usr/local......

Mar 15 21:11:53.414563 2025 childboot fatal (pid 4849) (sess init): childinit failed: version conflict for package "Lockfile": have 1.1, need exactly 1.0 Mar 15 21:11:53.415053 2025 childboot fatal (pid 4849) (sess init): errorInfo=version conflict for package "Lockfile": have 1.1, need exactly 1.0
   while executing
"package require -exact Lockfile 1.0"
   (in namespace eval "::TicketMaster" script line 6)
   invoked from within
"namespace eval ::TicketMaster {

Now I tried a few things to get the 1.0 version to load and about the only thing that worked was removing the 1.1 package from /usr/local/..... But I discovered along the way that if I add a "package forget Lockfile" just before the package require -

namespace eval ::TicketMaster {

    package require Thread
    package require sha1
*    package forget Lockfile*
    package require -exact Lockfile 1.0

    logDebug ticketmaster "[namespace current] Lockfile available=[package versions Lockfile] \
    Lockfile loaded=[package require Lockfile]"

It now loads the correct 1.0 package, but further more reports that both 1.0 and 1.1 are available -

Mar 15 21:19:02.296247 2025 ticketmaster debug (pid 5273) (sess init): ::TicketMaster Lockfile available=1.0 1.1  Lockfile loaded=1.0

I'm using Lockfile package in several modules. I haven't tried to package forget in each one yet and Im not sure how that would work.

As a work around I may rename the package under 3rdparty with a distinctive prefix like Local or 3rd or something. There are bits and pieces of my rivet base website that might end up in stand alone packages and they will be moved to the 3rdparty directory. But I certainly don't want an independently installed newer version of a package on the system to be loaded instead of the local package which is part of the rivet base. If I specify -exact ... 1.0 then it should load that one.


Anyway, I'm not sure what I'm doing wrong. I'm adding the 3rdparty directory to fairly early in the ChildInitScript. Initially only the /usr/local/lib... 1.1 package is available. If I do a package forget ... then both the 3rdparty 1.0 and the /usr/local 1.1 are available?


Kind regards,

Scott






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