mirror of
https://github.com/nvm-sh/nvm.git
synced 2026-08-25 00:00:22 +08:00
Jordan Harband
809f3ee5ab
Two `nvm install <same version>` runs could race on the version directory - one removing or replacing it while the other reads or writes it. Take a per-version advisory lock (an atomically-created directory under $NVM_DIR/.cache locks) around the binary/source install, so a second run of the same version waits for the first; installs of different versions never contend. NVM_INSTALL_LOCK_TIMEOUT (seconds, default 600) bounds the wait, after which nvm reports the lock path so a lock left by a killed install can be removed. NVM_INSTALL_LOCK_STALE (minutes, default 0 / off) opts into automatically stealing a lock older than that, for unattended or CI use.
33 lines
1.1 KiB
Bash
Executable File
33 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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cleanup() {
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[ -n "${NVM_DIR}" ] && [ -d "${NVM_DIR}" ] && rm -rf "${NVM_DIR}"
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unset -f die cleanup
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unset NVM_DIR
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}
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die() { echo "$@" ; cleanup ; exit 1; }
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: nvm.sh
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\. ../../../nvm.sh
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type nvm_install_lock_name > /dev/null 2>&1 || die 'nvm_install_lock_name is not available'
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NVM_DIR="$(mktemp -d)"
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[ -n "${NVM_DIR}" ] || die 'unable to create temp NVM_DIR'
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# A normal version passes through unchanged.
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[ "$(nvm_install_lock_name 'v20.0.0')" = 'v20.0.0' ] || die "v20.0.0 => >$(nvm_install_lock_name 'v20.0.0')<"
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# Dots, hyphens, plus, and underscores are all preserved.
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[ "$(nvm_install_lock_name 'iojs-v1.0.0')" = 'iojs-v1.0.0' ] || die "iojs-v1.0.0 => >$(nvm_install_lock_name 'iojs-v1.0.0')<"
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# Path separators and other unsafe characters become underscores.
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[ "$(nvm_install_lock_name 'lts/*')" = 'lts__' ] || die "lts/* => >$(nvm_install_lock_name 'lts/*')<"
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[ "$(nvm_install_lock_name 'a b/c')" = 'a_b_c' ] || die "a b/c => >$(nvm_install_lock_name 'a b/c')<"
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# The empty string maps to the empty string (no trailing-newline artifact).
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[ "$(nvm_install_lock_name '')" = '' ] || die "empty => >$(nvm_install_lock_name '')<"
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cleanup
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