lemke_h
8ad76f9b82
bpy-default.sh and bpy-dev.sh were saved 'pixi shell-hook' output from another host, with PIXI_EXE and PATH pointing into a personal home that doesn't exist on the consoles. bpy-env.sh now runs the hook at runtime (--as-is, ~0.2 s) for its shared-env fallback instead of sourcing bpy-default.sh; nothing else used either file. Scripts that call pixi now prefer the system /usr/bin/pixi and fall back to /sf/bernina/bin/pixi (e.g. on ra, which has no system pixi).
43 lines
2.0 KiB
Bash
43 lines
2.0 KiB
Bash
#!/bin/bash
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echo "Loading Bernina Python (pixi)" # <<< conda initialize <<<
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# Prefer the local per-host pixi mirror in ~/bpy (see pixi_local_sync)
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# over the shared NFS install, for speed -- but only once verified
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# identical: pixi.lock fully determines what gets built (see chat), so a
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# byte-for-byte match against the shared lock means the local bpy312 is
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# guaranteed the same as the shared activation below.
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# Anything else (no local copy yet, a sync in progress, or behind) falls
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# back to the existing shared-NFS activation, unchanged.
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#
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# The lock match alone isn't enough though: pixi_local_sync copies
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# pixi.lock BEFORE it finishes (re)installing bpy312/bin, so there's a
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# window where the lock already matches but the env on disk is still
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# being rewritten. Guard against that with a non-blocking SHARED flock
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# on the same lock file that script holds EXCLUSIVELY during that whole
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# window -- if we can't get it, a sync is actively running right now, so
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# fall back rather than risk activating a half-linked env.
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_bpy_pixi=/usr/bin/pixi # console (system) pixi first
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[ -x "$_bpy_pixi" ] || _bpy_pixi=/sf/bernina/bin/pixi # fallback, e.g. on ra (RHEL8)
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_bpy_local="$HOME/bpy"
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_bpy_activated=0
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if [ -d "$_bpy_local/.pixi_local_sync" ]; then
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exec 8>"$_bpy_local/.pixi_local_sync/.install.lock"
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if flock -s -n 8; then
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if cmp -s "$_bpy_local/pixi.lock" /sf/bernina/applications/python/pixi.lock 2>/dev/null \
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&& [ -d "$_bpy_local/.pixi/envs/bpy312/bin" ]; then
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eval "$("$_bpy_pixi" shell-hook -e bpy312 -s bash -m "$_bpy_local/pixi.toml")"
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_bpy_activated=1
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fi
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flock -u 8
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fi
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exec 8>&-
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fi
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# Shared env: --as-is never installs or relocks (users can't write there).
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[ "$_bpy_activated" -eq 1 ] || eval "$("$_bpy_pixi" shell-hook --as-is -e bpy312 -s bash \
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--manifest-path /sf/bernina/applications/python/pixi.toml)"
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unset _bpy_pixi _bpy_local _bpy_activated
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micromamba config append envs_dirs /sf/bernina/applications/python/environments
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