Matt Van Horn
a1afbce84c
U2 of the Claude Desktop .mcpb bundle plan. - internal/engine/embed.go embeds the vendored Python tree at build time via //go:embed all:vendored. The engine package owns the embed because Go's directive cannot reach outside its own package directory; sync and gitignore paths are updated to match (internal/engine/vendored/ in place of mcp/vendored/). - internal/engine/extract.go materializes the embed into <cache>/last30days-pp-mcp/<version>/ with a .version sentinel that short-circuits re-extraction. Atomic rename from a .tmp sibling means a partial extraction can never be mistaken for complete. Concurrent first-call extractions serialize behind a per-cache-dir sync.Once. - EnsureUserCache honors a LAST30DAYS_CACHE_DIR env override for locked-down filesystems; the override is named in extract errors. - internal/engine/extract_test.go covers happy path, sentinel skip, version bump, 10-goroutine race, empty-version rejection, unwritable cache parent, and the env override (7 tests, all passing). - A tracked vendored/.gitkeep anchors the embed path so the directive matches even before scripts/sync-engine.sh runs.
27 lines
978 B
Go
27 lines
978 B
Go
// Package engine wraps the vendored Python last30days engine. The engine
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// is embedded at build time via //go:embed and extracted into a per-user
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// cache directory on first use, then invoked through python3 in a
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// subprocess. Consumers should call EnsureUserCache to materialize the
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// engine and Run to execute it.
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package engine
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import (
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"embed"
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"io/fs"
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)
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// EngineSourceDir is the embed root inside the binary. scripts/sync-engine.sh
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// mirrors skills/last30days/scripts/ into this directory before each build.
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// The all: prefix preserves files starting with "." or "_" so the .gitkeep
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// anchor file survives - without it the embed would error before sync runs.
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//
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//go:embed all:vendored
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var vendored embed.FS
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// EngineFS returns the embedded engine as a filesystem rooted at the
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// vendored/ directory contents (so callers see "last30days.py" at the
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// root, not "vendored/last30days.py").
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func EngineFS() (fs.FS, error) {
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return fs.Sub(vendored, "vendored")
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}
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