mirror of
https://github.com/nvm-sh/nvm.git
synced 2026-10-11 00:00:13 +08:00
Hridhin Varkey Joseph
f1f3d463ab
When `nvm use` is given an exact `vX.Y.Z` that is already installed, and no alias with that exact name exists, use it directly instead of re-resolving it through `nvm_match_version` and `nvm_ensure_version_installed`, both of which call `nvm_version`. `nvm_auto` takes this path on every shell startup with an already-resolved version, so this removes ~95ms from each new shell (~330ms -> ~235ms in a clean environment on macOS/zsh). Fixes #3930
32 lines
795 B
Bash
Executable File
32 lines
795 B
Bash
Executable File
#!/bin/sh
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cleanup () {
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rm -rf "$NVM_DIR"
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unset -f die cleanup nvm_version
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}
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die () { echo "$@" ; cleanup ; exit 1; }
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: nvm.sh
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\. ../../../nvm.sh
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NVM_DIR="$(mktemp -d)"
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NODE_BIN="$NVM_DIR/versions/node/v12.0.0/bin"
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mkdir -p "$NODE_BIN"
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printf '#!/bin/sh\necho v12.0.0\n' > "$NODE_BIN/node"
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chmod +x "$NODE_BIN/node"
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# the slow path resolves through nvm_version; make it fail so only the fast path can succeed
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nvm_version() {
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return 42
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}
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nvm use --silent v12.0.0 || die 'nvm use with an exact, installed version should not need nvm_version'
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case ":${PATH}:" in
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*":${NODE_BIN}:"*) ;;
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*) die "nvm use did not put ${NODE_BIN} on PATH; got ${PATH}" ;;
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esac
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! nvm use --silent v12 2>/dev/null || die 'nvm use with a partial version should still resolve it through nvm_version'
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cleanup
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