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
59 lines
2.1 KiB
Bash
Executable File
59 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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cleanup () {
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rm -rf "$NVM_DIR"
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unset -f die cleanup
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unset NVM_DIR NODE_PATH VERSION
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}
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die () { echo "$@" ; cleanup ; exit 1; }
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: nvm.sh
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\. ../../../nvm.sh
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set -ex
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NVM_DIR=$(mktemp -d)
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NODE_PATH="$NVM_DIR/versions/node"
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mkdir -p "$NODE_PATH"
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if [ -z "$NODE_PATH" ]; then
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die 'Unable to create temporary folder'
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fi
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# nvm_is_installed_exact_version is available
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type nvm_is_installed_exact_version > /dev/null 2>&1 || die 'nvm_is_installed_exact_version is not available'
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# nvm_is_installed_exact_version with no parameter fails
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! nvm_is_installed_exact_version || die 'nvm_is_installed_exact_version without parameter should fail'
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# an exact version that is not installed fails
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! nvm_is_installed_exact_version 'v12.0.0' || die 'v12.0.0 is not installed and should fail'
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# an exact version whose node binary is not executable fails
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mkdir -p "$NODE_PATH/v12.0.0/bin"
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touch "$NODE_PATH/v12.0.0/bin/node"
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! nvm_is_installed_exact_version 'v12.0.0' || die 'v12.0.0 with a non-executable node should fail'
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# an exact, installed version succeeds
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chmod +x "$NODE_PATH/v12.0.0/bin/node"
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nvm_is_installed_exact_version 'v12.0.0' || die 'v12.0.0 is installed and should succeed'
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# something shaped almost like vX.Y.Z fails, even when a directory by that name is installed
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for VERSION in 'v12.0.0.0' 'v12.0.0.' 'v12..0' 'v.12.0' 'v12.0'; do
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mkdir -p "$NODE_PATH/$VERSION/bin"
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touch "$NODE_PATH/$VERSION/bin/node"
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chmod +x "$NODE_PATH/$VERSION/bin/node"
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! nvm_is_installed_exact_version "$VERSION" || die "$VERSION is not an exact version and should fail, even when installed"
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done
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# anything that is not an exact vX.Y.Z fails, even if it would resolve to an installed version
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for VERSION in '12.0.0' '12' 'v12' 'v12.0' 'v12.0.0-rc.1' 'node' 'stable' 'lts/*' 'iojs-v1.0.0' 'system' 'default'; do
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! nvm_is_installed_exact_version "$VERSION" || die "$VERSION is not an exact version and should fail"
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done
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# an alias with the exact same name takes precedence, so the fast path must not apply
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mkdir -p "$(nvm_alias_path)"
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echo 'v12.0.0' > "$(nvm_alias_path)/v12.0.0"
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! nvm_is_installed_exact_version 'v12.0.0' || die 'an alias named v12.0.0 should take precedence'
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cleanup
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