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Add version aliases

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An older plugin, pyenv-alias, allowed naming the desired python version with
an alias, which allowed installing multiple versions of the same python
version.  This is particularly useful on Apple silicon if you want to install
both arm and x86_64 versions of python.

Unfortunately, the pyenv-alias plugin broke when the code was updated to
allow specifying multiple versions of Python to install at once, and the
current code is not amenable to modifying the version in place with another
plugin.
This commit is contained in:
Kevin Squire 2024-05-20 23:04:48 -07:00
parent aabaa89243
commit b4b8f71dde
1 changed files with 39 additions and 3 deletions
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42
plugins/python-build/bin/pyenv-install
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@ -123,6 +123,36 @@ DEFINITIONS=("${ARGUMENTS[@]}")
[[ "${#DEFINITIONS[*]}" -eq 0 ]] && DEFINITIONS=($(pyenv-local 2>/dev/null || true))
[[ "${#DEFINITIONS[*]}" -eq 0 ]] && usage 1 >&2
is_array() {
# no argument passed
[[ $# -ne 1 ]] && echo 'Supply a variable name as an argument'>&2 && return 2
local var=$1
# use a variable to avoid having to escape spaces
local regex="^declare -[aA] ${var}(=|$)"
[[ $(declare -p "$var" 2> /dev/null) =~ $regex ]] && return 0
}
# If VERSION_ALIAS exists, create a 1-element array, VERSION_ALIASES, from VERSION_ALIAS
if [ -n "${VERSION_ALIAS}" ]; then
# Make sure VERSION_ALIASES doesn't already exist
# If it does, print an error about defining only one of VERSION_ALIAS or VERSION_ALIASES
if is_array VERSION_ALIASES; then
echo "Define only one of VERSION_ALIAS or VERSION_ALIASES" >&2
exit 1
fi
VERSION_ALIASES=("${VERSION_ALIAS}")
fi
# If VERSION_ALIASES exists, make sure it has the same number of elements as DEFINITIONS
if is_array VERSION_ALIASES; then
if [[ "${#VERSION_ALIASES[@]}" -ne "${#DEFINITIONS[@]}" ]]; then
echo "VERSION_ALIASES must have the same number of elements as DEFINITIONS" >&2
exit 1
fi
fi
# Define `before_install` and `after_install` functions that allow
# plugin hooks to register a string of code for execution before or
# after the installation process.
@ -152,7 +182,12 @@ IFS="$OLDIFS"
for script in "${scripts[@]}"; do source "$script"; done
COMBINED_STATUS=0
for DEFINITION in "${DEFINITIONS[@]}"; do
for i in "${!DEFINITIONS[@]}"; do
DEFINITION="${DEFINITIONS[$i]}"
if is_array VERSION_ALIASES; then
VERSION_ALIAS="${VERSION_ALIASES[$i]}"
fi
STATUS=0
# Try to resolve a prefix if user indeed gave a prefix.
@ -160,8 +195,9 @@ for DEFINITION in "${DEFINITIONS[@]}"; do
# and hooks also see the resolved name
DEFINITION="$(pyenv-latest -q -k "$DEFINITION" || echo "$DEFINITION")"
# Set VERSION_NAME from $DEFINITION. Then compute the installation prefix.
VERSION_NAME="${DEFINITION##*/}"
# Set VERSION_NAME from $VERSION_ALIAS if it is defined, else $DEFINITION.
# Then compute the installation prefix.
VERSION_NAME="${VERSION_ALIAS:-$DEFINITION##*/}"
[ -n "$DEBUG" ] && VERSION_NAME="${VERSION_NAME}-debug"
PREFIX="${PYENV_ROOT}/versions/${VERSION_NAME}"