CondaPkg constantly uninstalling, reinstalling all packages

[habemus-papadum]

Hi, On windows 11, Julia 1.9.3, CondaPkg v0.2.21, CondaPkg frequently uninstalls all packages and the reinstalls all of them when calling resolve -- this doesn't happen every single time, but maybe around 80% of the time, which is quite difficult. Is there are a way to better understand why resolve is causing this behavior?

Thanks

[habemus-papadum]

The issue seems to be triggered here:

CondaPkg.jl/src/resolve.jl

Line 34 in baa6132

meta.load_path == load_path || return false

The C drive has different capitalization in the first entry, see below:

meta.load_path
["C:\\Users\\nehal\\src\\julia-fun\\warpsnwefts\\Project.toml", "C:\\Users\\nehal\\.julia\\environments\\v1.9\\Project.toml", "C:\\Users\\nehal\\.julia\\juliaup\\julia-1.9.3+0.x64.w64.mingw32\\share\\julia\\stdlib\\v1.9"]
load_path
["c:\\Users\\nehal\\src\\julia-fun\\warpsnwefts\\Project.toml", "C:\\Users\\nehal\\.julia\\environments\\v1.9\\Project.toml", "C:\\Users\\nehal\\.julia\\juliaup\\julia-1.9.3+0.x64.w64.mingw32\\share\\julia\\stdlib\\v1.9"]

[habemus-papadum]

I haven't gotten to the bottom, but my guess it is something to do with a difference in how vscode and the julia command line specify the project on startup

[cjdoris]

Well isn't that fun! You've got to love case-insensitive filesystems...

This particular issue should be a straightforward fix - just needs a more nuanced load_path comparison than ==.

However, I'm surprised it's actually reinstalling everything - resolve_can_skip_1 just provides a quick check. If the set of packages to install hasn't actually changed, then it should still take a fast route, namely it executes

CondaPkg.jl/src/resolve.jl

Lines 510 to 532 in baa6132

	# the state is sufficiently clean that we can modify the existing conda environment
	changed = false
	if !isempty(removed_pip_pkgs) && !shared
	dry_run && return
	changed = true
	_resolve_pip_remove(io, removed_pip_pkgs, load_path)
	end
	if !isempty(removed_pkgs) && !shared
	dry_run && return
	changed = true
	_resolve_conda_remove(io, conda_env, removed_pkgs)
	end
	if !isempty(specs) && (!isempty(added_pkgs) || !isempty(changed_pkgs) || (meta.channels != channels) || changed)
	dry_run && return
	changed = true
	_resolve_conda_install(io, conda_env, specs, channels)
	end
	if !isempty(pip_specs) && (!isempty(added_pip_pkgs) || !isempty(changed_pip_pkgs) || changed)
	dry_run && return
	changed = true
	_resolve_pip_install(io, pip_specs, load_path)
	end
	changed || _log(io, "Dependencies already up to date")

but each inner if block is a no-op because the set of packages hasn't changed. Is this not the case?

[habemus-papadum]

That makes sense; the packages should have not changed. I will try to revisit this in a few days to isolate futher

[RefatIsmail96]

Hi, I am facing a similar issue with CondaPkg removing the environment and creating it again, even when the dependencies did not change.

I am using Windows 11 as well and VS code. Same code ran over MAC does not result in the same issue. Were you able to find the problem here?