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nvm/test/fast/Unit tests/nvm_change_path
T
maliv2 bfabdbc278 [Fix] nvm use: do not pile up PATH entries in nested sessions
`nvm_change_path` prepends the new version
(instead of replacing the existing nvm path)
when a system bin dir precedes an nvm path,
to handle macOS `path_helper` reordering the `PATH` of nested sessions
(#1652). However, the check matched a system dir followed by *any* nvm path.
Once a stale nvm path sits after the system dirs
(e.g. inherited by a nested shell, tmux, or an editor's terminal),
the check stays true forever,
so every `nvm use` prepends yet another entry and the previously used version is never removed from the `PATH`.

Only consider the first nvm path:
if it is not preceded by a system bin dir,
replace it in place as usual.

Fixes #3561
2026-10-14 20:53:08 +03:00

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#!/bin/sh
die () { echo "$@" ; exit 1; }
: nvm.sh
\. ../../../nvm.sh
TEST_PATH=/usr/bin:/usr/local/bin
# New version dir
NEW_PATH=`nvm_change_path "$TEST_PATH" "/bin" "$NVM_DIR/versions/node/v7.1.0"`
[ "$NEW_PATH" = "$NVM_DIR/versions/node/v7.1.0/bin:/usr/bin:/usr/local/bin" ] || die "Not correctly changed: $NEW_PATH "
# Old version dir
NEW_PATH=`nvm_change_path "$TEST_PATH" "/bin" "$NVM_DIR/v0.1.2"`
[ "$NEW_PATH" = "$NVM_DIR/v0.1.2/bin:/usr/bin:/usr/local/bin" ] || die "Not correctly changed: $NEW_PATH "
TEST_PATH=/home/user/code/test/node_modules/.bin:$NVM_DIR/versions/node/v4.5.0/bin:/usr/bin:/usr/local/bin
# New version dir
NEW_PATH=`nvm_change_path "$TEST_PATH" "/bin" "$NVM_DIR/versions/node/v7.1.0"`
[ "$NEW_PATH" = "/home/user/code/test/node_modules/.bin:$NVM_DIR/versions/node/v7.1.0/bin:/usr/bin:/usr/local/bin" ] || die "Not correctly changed: $NEW_PATH "
# Old version dir
NEW_PATH=`nvm_change_path "$TEST_PATH" "/bin" "$NVM_DIR/v0.1.2"`
[ "$NEW_PATH" = "/home/user/code/test/node_modules/.bin:$NVM_DIR/v0.1.2/bin:/usr/bin:/usr/local/bin" ] || die "Not correctly changed: $NEW_PATH "
EMPTY_PATH=
# New version dir
NEW_PATH=`nvm_change_path "$EMPTY_PATH" "/bin" "$NVM_DIR/versions/node/v7.1.0"`
[ "$NEW_PATH" = "$NVM_DIR/versions/node/v7.1.0/bin" ] || die "Not correctly prepended: $NEW_PATH "
# Old version dir
NEW_PATH=`nvm_change_path "$EMPTY_PATH" "/bin" "$NVM_DIR/v0.1.2"`
[ "$NEW_PATH" = "$NVM_DIR/v0.1.2/bin" ] || die "Not correctly prepended: $NEW_PATH "
# empty entries select `man`'s own search path, so they have to survive intact
MAN_PATH_WITH_EMPTY_ENTRIES=/opt/foo/man::/opt/bar/man:
# New version dir
NEW_PATH=`nvm_change_path "$MAN_PATH_WITH_EMPTY_ENTRIES" "/share/man" "$NVM_DIR/versions/node/v7.1.0"`
[ "$NEW_PATH" = "$NVM_DIR/versions/node/v7.1.0/share/man:$MAN_PATH_WITH_EMPTY_ENTRIES" ] || die "Not correctly prepended: $NEW_PATH "
# Replacing an existing version dir
NEW_PATH=`nvm_change_path "$NVM_DIR/versions/node/v4.5.0/share/man::/opt/bar/man:" "/share/man" "$NVM_DIR/versions/node/v7.1.0"`
[ "$NEW_PATH" = "$NVM_DIR/versions/node/v7.1.0/share/man::/opt/bar/man:" ] || die "Not correctly changed: $NEW_PATH "
# https://github.com/nvm-sh/nvm/issues/1652#issuecomment-342571223
MAC_OS_NESTED_SESSION_PATH=/usr/bin:/usr/local/bin:$NVM_DIR/versions/node/v4.5.0/bin
# New version dir
NEW_PATH=`nvm_change_path "$MAC_OS_NESTED_SESSION_PATH" "/bin" "$NVM_DIR/versions/node/v7.1.0"`
[ "$NEW_PATH" = "$NVM_DIR/versions/node/v7.1.0/bin:/usr/bin:/usr/local/bin:$NVM_DIR/versions/node/v4.5.0/bin" ] || die "Not correctly changed: $NEW_PATH "
# Old version dir
NEW_PATH=`nvm_change_path "$MAC_OS_NESTED_SESSION_PATH" "/bin" "$NVM_DIR/v0.1.2"`
[ "$NEW_PATH" = "$NVM_DIR/v0.1.2/bin:/usr/bin:/usr/local/bin:$NVM_DIR/versions/node/v4.5.0/bin" ] || die "Not correctly changed: $NEW_PATH "
# an nvm path that was already prepended ahead of the system paths is replaced,
# rather than piling up another entry on every change
# https://github.com/nvm-sh/nvm/issues/3561
PREPENDED_NESTED_SESSION_PATH=$NVM_DIR/versions/node/v7.1.0/bin:/usr/bin:/usr/local/bin:$NVM_DIR/versions/node/v4.5.0/bin
NEW_PATH=`nvm_change_path "$PREPENDED_NESTED_SESSION_PATH" "/bin" "$NVM_DIR/versions/node/v8.0.0"`
[ "$NEW_PATH" = "$NVM_DIR/versions/node/v8.0.0/bin:/usr/bin:/usr/local/bin:$NVM_DIR/versions/node/v4.5.0/bin" ] || die "Not correctly changed: $NEW_PATH "
NEW_PATH=`nvm_change_path "$PREPENDED_NESTED_SESSION_PATH" "/bin" "$NVM_DIR/v0.1.2"`
[ "$NEW_PATH" = "$NVM_DIR/v0.1.2/bin:/usr/bin:/usr/local/bin:$NVM_DIR/versions/node/v4.5.0/bin" ] || die "Not correctly changed: $NEW_PATH "