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swivm.sh
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# SWI-Prolog Version Manager
# Implemented as a POSIX-compliant function
# Should work on sh, dash, bash, ksh, zsh
# To use source this file from your bash profile
#
# Implemented by Falco Nogatz <[email protected]>.
# Based on the Node Version Manager (nvm), by Tim
# Caswell <[email protected]> and Matthew Ranney
{ # this ensures the entire script is downloaded #
SWIVM_SCRIPT_SOURCE="$_"
swivm_is_zsh() {
[ -n "${ZSH_VERSION-}" ]
}
swivm_echo() {
command printf %s\\n "$*" 2>/dev/null
}
swivm_cd() {
\cd "$@"
}
swivm_err() {
>&2 swivm_echo "$@"
}
swivm_grep() {
GREP_OPTIONS='' command grep "$@"
}
swivm_has() {
type "${1-}" > /dev/null 2>&1
}
swivm_is_alias() {
# this is intentionally not "command alias" so it works in zsh.
\alias "$1" > /dev/null 2>&1
}
swivm_has_colors() {
local SWIVM_COLORS
if swivm_has tput; then
SWIVM_COLORS="$(tput -T "${TERM:-vt100}" colors)"
fi
[ "${SWIVM_COLORS:--1}" -ge 8 ]
}
swivm_download() {
if swivm_has "curl"; then
curl -q $*
elif swivm_has "wget"; then
# Emulate curl with wget
ARGS=$(echo "$*" | command sed -e 's/--progress-bar /--progress=bar /' \
-e 's/-L //' \
-e 's/-I /--server-response /' \
-e 's/-s /-q /' \
-e 's/-o /-O /' \
-e 's/-C - /-c /')
eval wget $ARGS
fi
}
swivm_has_system() {
[ "$(swivm deactivate >/dev/null 2>&1 && command -v swipl)" != '' ]
}
swivm_is_version_installed() {
[ -n "${1-}" ] && [ -x "$(swivm_version_path "$1" 2>/dev/null)"/bin/swipl ]
}
# Make zsh glob matching behave same as bash
# This fixes the "zsh: no matches found" errors
if swivm_has "unsetopt"; then
unsetopt nomatch 2>/dev/null
SWIVM_CD_FLAGS="-q"
fi
# Auto detect the SWIVM_DIR when not set
if [ -z "$SWIVM_DIR" ]; then
if [ -n "$BASH_SOURCE" ]; then
SWIVM_SCRIPT_SOURCE="${BASH_SOURCE[0]}"
fi
SWIVM_DIR="$(cd $SWIVM_CD_FLAGS "$(dirname "${SWIVM_SCRIPT_SOURCE:-$0}")" > /dev/null && \pwd)"
export SWIVM_DIR
fi
unset SWIVM_SCRIPT_SOURCE 2> /dev/null
# Setup mirror location if not already set
if [ -z "$SWIVM_MIRROR" ]; then
export SWIVM_MIRROR="https://www.swi-prolog.org/download/"
fi
if [ -z "$GITHUB_MIRROR" ]; then
export GITHUB_MIRROR="https://github.com/SWI-Prolog"
fi
swivm_tree_contains_path() {
local tree
tree="$1"
local swi_path
swi_path="$2"
if [ "@$tree@" = "@@" ] || [ "@$swi_path@" = "@@" ]; then
>&2 echo "both the tree and the SWI-Prolog path are required"
return 2
fi
local pathdir
pathdir=$(dirname "$swi_path")
while [ "$pathdir" != "" ] && [ "$pathdir" != "." ] && [ "$pathdir" != "/" ] && [ "$pathdir" != "$tree" ]; do
pathdir=$(dirname "$pathdir")
done
[ "$pathdir" = "$tree" ]
}
# Traverse up in directory tree to find containing folder
swivm_find_up() {
local path
path=$PWD
while [ "$path" != "" ] && [ ! -f "$path/$1" ]; do
path=${path%/*}
done
echo "$path"
}
swivm_find_swivmrc() {
local dir
dir="$(swivm_find_up '.swivmrc')"
if [ -e "$dir/.swivmrc" ]; then
echo "$dir/.swivmrc"
fi
}
# Obtain swivm version from rc file
swivm_rc_version() {
export SWIVM_RC_VERSION=''
local SWIVMRC_PATH
SWIVMRC_PATH="$(swivm_find_swivmrc)"
if [ ! -e "${SWIVMRC_PATH}" ]; then
swivm_err "No .swivmrc file found"
return 1
fi
SWIVM_RC_VERSION="$(command head -n 1 "${SWIVMRC_PATH}" | command tr -d '\r')" || command printf ''
if [ -z "${SWIVM_RC_VERSION}" ]; then
swivm_err "Warning: empty .swivmrc file found at \"${SWIVMRC_PATH}\""
return 2
fi
swivm_echo "Found '${SWIVMRC_PATH}' with version <${SWIVM_RC_VERSION}>"
}
swivm_version_greater() {
local LHS
LHS="$(swivm_normalize_version "$1")"
local RHS
RHS="$(swivm_normalize_version "$2")"
[ "$LHS" -gt "$RHS" ];
}
swivm_version_greater_than_or_equal_to() {
local LHS
LHS="$(swivm_normalize_version "$1")"
local RHS
RHS="$(swivm_normalize_version "$2")"
[ "$LHS" -ge "$RHS" ];
}
swivm_version_dir() {
local SWIVM_WHICH_DIR
SWIVM_WHICH_DIR="$1"
echo "$SWIVM_DIR/versions"
}
swivm_alias_path() {
echo "$SWIVM_DIR/alias"
}
swivm_version_path() {
local VERSION
VERSION="$1"
if [ -z "$VERSION" ]; then
swivm_echo "version is required" >&2
return 3
else
swivm_echo "$(swivm_version_dir)/$VERSION"
fi
}
swivm_lib_path() {
local VERSION_PATH
VERSION_PATH="$1"
swivm_echo "${VERSION_PATH}/lib/swipl/lib/x86_64-linux"
}
swivm_ensure_version_installed() {
local PROVIDED_VERSION
PROVIDED_VERSION="$1"
local LOCAL_VERSION
local EXIT_CODE
LOCAL_VERSION="$(swivm_version "$PROVIDED_VERSION")"
EXIT_CODE="$?"
local SWIVM_VERSION_DIR
if [ "_$EXIT_CODE" = "_0" ]; then
SWIVM_VERSION_DIR="$(swivm_version_path "$LOCAL_VERSION")"
fi
if [ "_$EXIT_CODE" != "_0" ] || [ ! -d "$SWIVM_VERSION_DIR" ]; then
VERSION="$(swivm_resolve_alias "$PROVIDED_VERSION")"
if [ $? -eq 0 ]; then
echo "N/A: version \"$PROVIDED_VERSION -> $VERSION\" is not yet installed" >&2
else
echo "N/A: version \"$PROVIDED_VERSION\" is not yet installed" >&2
fi
return 1
fi
}
# Expand a version using the version cache
swivm_version() {
local PATTERN
PATTERN="${1-}"
local VERSION
# The default version is the current one
if [ -z "${PATTERN}" ]; then
PATTERN='current'
fi
if [ "${PATTERN}" = "current" ]; then
swivm_ls_current
return $?
fi
VERSION="$(swivm_ls "${PATTERN}" | command tail -1)"
if [ -z "${VERSION}" ] || [ "_${VERSION}" = "_N/A" ]; then
swivm_echo "N/A"
return 3
fi
swivm_echo "${VERSION}"
}
swivm_remote_version() {
local PATTERN
PATTERN="${1-}"
local VERSION
if swivm_validate_implicit_alias "${PATTERN}" 2>/dev/null; then
case "${PATTERN}" in
*)
VERSION="$(swivm_ls_remote "${PATTERN}")" &&:
;;
esac
else
VERSION="$(swivm_remote_versions "${PATTERN}" | command tail -1)"
fi
if [ -n "${SWIVM_VERSION_ONLY-}" ]; then
command awk 'BEGIN {
n = split(ARGV[1], a);
print a[1]
}' "${VERSION}"
else
swivm_echo "${VERSION}"
fi
if [ "${VERSION}" = 'N/A' ]; then
return 3
fi
}
swivm_remote_versions() {
local PATTERN
PATTERN="$1"
if swivm_validate_implicit_alias "$PATTERN" 2> /dev/null ; then
echo >&2 "Implicit aliases are not supported in swivm_remote_versions."
return 1
fi
VERSIONS="$(echo "$(swivm_ls_remote "$PATTERN")" | command grep -v "N/A" | command sed '/^$/d')"
if [ -z "$VERSIONS" ]; then
echo "N/A"
return 3
else
echo "$VERSIONS"
fi
}
swivm_is_valid_version() {
if swivm_validate_implicit_alias "${1-}" 2>/dev/null; then
return 0
fi
case "${1-}" in
*)
local VERSION
VERSION="${1-}"
swivm_version_greater_than_or_equal_to "${VERSION}" 0
;;
esac
}
swivm_normalize_version() {
echo "${1#v}" | command awk -F. '{ printf("%d%06d%06d\n", $1,$2,$3); }'
}
swivm_ensure_version_prefix() {
local SWIVM_VERSION
SWIVM_VERSION="$(echo "${1-}" | command sed -e 's/^\([0-9]\)/v\1/g')"
swivm_echo "${SWIVM_VERSION}"
}
swivm_format_version() {
local VERSION
VERSION="$(swivm_ensure_version_prefix "${1-}")"
local NUM_GROUPS
NUM_GROUPS="$(swivm_num_version_groups "${VERSION}")"
if [ "${NUM_GROUPS}" -lt 3 ]; then
swivm_format_version "${VERSION%.}.0"
else
swivm_echo "${VERSION}" | command cut -f1-3 -d.
fi
}
swivm_num_version_groups() {
local VERSION
VERSION="$1"
VERSION="${VERSION#v}"
VERSION="${VERSION%.}"
if [ -z "$VERSION" ]; then
echo "0"
return
fi
local SWIVM_NUM_DOTS
SWIVM_NUM_DOTS=$(echo "$VERSION" | command sed -e 's/[^\.]//g')
local SWIVM_NUM_GROUPS
SWIVM_NUM_GROUPS=".$SWIVM_NUM_DOTS" # add extra dot, since it's (n - 1) dots at this point
echo "${#SWIVM_NUM_GROUPS}"
}
swivm_strip_path() {
echo "$1" | command sed \
-e "s#$SWIVM_DIR/[^/]*$2[^:]*:##g" \
-e "s#:$SWIVM_DIR/[^/]*$2[^:]*##g" \
-e "s#$SWIVM_DIR/[^/]*$2[^:]*##g" \
-e "s#$SWIVM_DIR/versions/[^/]*$2[^:]*:##g" \
-e "s#:$SWIVM_DIR/versions/[^/]*$2[^:]*##g" \
-e "s#$SWIVM_DIR/versions/[^/]*$2[^:]*##g"
}
swivm_prepend_path() {
if [ -z "$1" ]; then
echo "$2"
else
echo "$2:$1"
fi
}
swivm_change_path() {
# if there’s no initial path, just return the supplementary path
if [ -z "${1-}" ]; then
swivm_echo "${3-}${2-}"
# if the initial path doesn’t contain an swivm path, prepend the supplementary
# path
elif ! swivm_echo "${1-}" | swivm_grep -q "${SWIVM_DIR}/[^/]*${2-}" \
&& ! swivm_echo "${1-}" | swivm_grep -q "${SWIVM_DIR}/versions/[^/]*/[^/]*${2-}"; then
swivm_echo "${3-}${2-}:${1-}"
# if the initial path contains BOTH an swivm path (checked for above) and
# that swivm path is preceded by a system binary path, just prepend the
# supplementary path instead of replacing it.
# https://github.com/nvm-sh/nvm/issues/1652#issuecomment-342571223
elif swivm_echo "${1-}" | swivm_grep -Eq "(^|:)(/usr(/local)?)?${2-}:.*${SWIVM_DIR}/[^/]*${2-}" \
|| swivm_echo "${1-}" | swivm_grep -Eq "(^|:)(/usr(/local)?)?${2-}:.*${SWIVM_DIR}/versions/[^/]*/[^/]*${2-}"; then
swivm_echo "${3-}${2-}:${1-}"
# use sed to replace the existing swivm path with the supplementary path. This
# preserves the order of the path.
else
swivm_echo "${1-}" | command sed \
-e "s#${SWIVM_DIR}/[^/]*${2-}[^:]*#${3-}${2-}#" \
-e "s#${SWIVM_DIR}/versions/[^/]*/[^/]*${2-}[^:]*#${3-}${2-}#"
fi
}
swivm_print_formatted_alias() {
local ALIAS
ALIAS="${1-}"
local DEST
DEST="${2-}"
local VERSION
VERSION="${3-}"
if [ -z "${VERSION}" ]; then
VERSION="$(swivm_version "${DEST}")" ||:
fi
local VERSION_FORMAT
local ALIAS_FORMAT
local DEST_FORMAT
ALIAS_FORMAT='%s'
DEST_FORMAT='%s'
VERSION_FORMAT='%s'
local NEWLINE
NEWLINE='\n'
if [ "_${DEFAULT}" = '_true' ]; then
NEWLINE=' (default)\n'
fi
local ARROW
ARROW='->'
if [ -z "${SWIVM_NO_COLORS}" ] && swivm_has_colors; then
ARROW='\033[0;90m->\033[0m'
if [ "_${DEFAULT}" = '_true' ]; then
NEWLINE=' \033[0;37m(default)\033[0m\n'
fi
if [ "_${VERSION}" = "_${SWIVM_CURRENT-}" ]; then
ALIAS_FORMAT='\033[0;32m%s\033[0m'
DEST_FORMAT='\033[0;32m%s\033[0m'
VERSION_FORMAT='\033[0;32m%s\033[0m'
elif swivm_is_version_installed "${VERSION}"; then
ALIAS_FORMAT='\033[0;34m%s\033[0m'
DEST_FORMAT='\033[0;34m%s\033[0m'
VERSION_FORMAT='\033[0;34m%s\033[0m'
elif [ "${VERSION}" = '∞' ] || [ "${VERSION}" = 'N/A' ]; then
ALIAS_FORMAT='\033[1;31m%s\033[0m'
DEST_FORMAT='\033[1;31m%s\033[0m'
VERSION_FORMAT='\033[1;31m%s\033[0m'
fi
elif [ "_${VERSION}" != '_∞' ] && [ "_${VERSION}" != '_N/A' ]; then
VERSION_FORMAT='%s *'
fi
if [ "${DEST}" = "${VERSION}" ]; then
command printf -- "${ALIAS_FORMAT} ${ARROW} ${VERSION_FORMAT}${NEWLINE}" "${ALIAS}" "${DEST}"
else
command printf -- "${ALIAS_FORMAT} ${ARROW} ${DEST_FORMAT} (${ARROW} ${VERSION_FORMAT})${NEWLINE}" "${ALIAS}" "${DEST}" "${VERSION}"
fi
}
swivm_print_alias_path() {
local SWIVM_ALIAS_DIR
SWIVM_ALIAS_DIR="${1-}"
if [ -z "${SWIVM_ALIAS_DIR}" ]; then
swivm_err 'An alias dir is required.'
return 1
fi
local ALIAS_PATH
ALIAS_PATH="${2-}"
if [ -z "${ALIAS_PATH}" ]; then
swivm_err 'An alias path is required.'
return 2
fi
local ALIAS
ALIAS="${ALIAS_PATH##${SWIVM_ALIAS_DIR}\/}"
local DEST
DEST="$(swivm_alias "${ALIAS}" 2>/dev/null)" ||:
if [ -n "${DEST}" ]; then
SWIVM_NO_COLORS="${SWIVM_NO_COLORS-}" DEFAULT=false swivm_print_formatted_alias "${ALIAS}" "${DEST}"
fi
}
swivm_print_default_alias() {
local ALIAS
ALIAS="${1-}"
if [ -z "${ALIAS}" ]; then
swivm_err 'A default alias is required.'
return 1
fi
local DEST
DEST="$(swivm_print_implicit_alias local "${ALIAS}")"
if [ -n "${DEST}" ]; then
SWIVM_NO_COLORS="${SWIVM_NO_COLORS-}" DEFAULT=true swivm_print_formatted_alias "${ALIAS}" "${DEST}"
fi
}
swivm_make_alias() {
local ALIAS
ALIAS="${1-}"
if [ -z "${ALIAS}" ]; then
swivm_err "an alias name is required"
return 1
fi
local VERSION
VERSION="${2-}"
if [ -z "${VERSION}" ]; then
swivm_err "an alias target version is required"
return 2
fi
swivm_echo "${VERSION}" | tee "$(swivm_alias_path)/${ALIAS}" >/dev/null
}
swivm_list_aliases() {
local ALIAS
ALIAS="${1-}"
local SWIVM_CURRENT
SWIVM_CURRENT="$(swivm_ls_current)"
local SWIVM_ALIAS_DIR
SWIVM_ALIAS_DIR="$(swivm_alias_path)"
command mkdir -p "${SWIVM_ALIAS_DIR}"
(
local ALIAS_PATH
for ALIAS_PATH in "${SWIVM_ALIAS_DIR}/${ALIAS}"*; do
SWIVM_NO_COLORS="${SWIVM_NO_COLORS-}" SWIVM_CURRENT="${SWIVM_CURRENT}" swivm_print_alias_path "${SWIVM_ALIAS_DIR}" "${ALIAS_PATH}" &
done
wait
) | sort
(
local ALIAS_NAME
for ALIAS_NAME in "stable" "devel"; do
{
if [ ! -f "${SWIVM_ALIAS_DIR}/${ALIAS_NAME}" ] && { [ -z "${ALIAS}" ] || [ "${ALIAS_NAME}" = "${ALIAS}" ]; }; then
SWIVM_NO_COLORS="${SWIVM_NO_COLORS-}" SWIVM_CURRENT="${SWIVM_CURRENT}" swivm_print_default_alias "${ALIAS_NAME}"
fi
} &
done
wait
) | sort
return
}
swivm_alias() {
local ALIAS
ALIAS="$1"
if [ -z "$ALIAS" ]; then
echo >&2 'An alias is required.'
return 1
fi
local SWIVM_ALIAS_PATH
SWIVM_ALIAS_PATH="$(swivm_alias_path)/$ALIAS"
if [ ! -f "$SWIVM_ALIAS_PATH" ]; then
echo >&2 'Alias does not exist.'
return 2
fi
command cat "$SWIVM_ALIAS_PATH"
}
swivm_ls_current() {
local SWIVM_LS_CURRENT_PATH
if ! SWIVM_LS_CURRENT_PATH="$(command which swipl 2>/dev/null)"; then
swivm_echo 'none'
elif swivm_tree_contains_path "${SWIVM_DIR}" "${SWIVM_LS_CURRENT_PATH}"; then
local VERSION
VERSION="$(swipl --version | sed -E "s/^.* ([0-9]+(\.[0-9]+)*) .*$/\1/g" 2>/dev/null)"
swivm_echo "v${VERSION}"
else
swivm_echo 'system'
fi
}
swivm_resolve_alias() {
if [ -z "${1-}" ]; then
return 1
fi
local PATTERN
PATTERN="${1-}"
local ALIAS
ALIAS="${PATTERN}"
local ALIAS_TEMP
local SEEN_ALIASES
SEEN_ALIASES="${ALIAS}"
while true; do
ALIAS_TEMP="$(swivm_alias "${ALIAS}" 2>/dev/null || swivm_echo)"
if [ -z "${ALIAS_TEMP}" ]; then
break
fi
if command printf "${SEEN_ALIASES}" | swivm_grep -q -e "^${ALIAS_TEMP}$"; then
ALIAS="∞"
break
fi
SEEN_ALIASES="${SEEN_ALIASES}\\n${ALIAS_TEMP}"
ALIAS="${ALIAS_TEMP}"
done
if [ -n "${ALIAS}" ] && [ "_${ALIAS}" != "_${PATTERN}" ]; then
case "${ALIAS}" in
'∞')
swivm_echo "${ALIAS}"
;;
*)
swivm_ensure_version_prefix "${ALIAS}"
;;
esac
return 0
fi
if swivm_validate_implicit_alias "${PATTERN}" 2>/dev/null; then
local IMPLICIT
IMPLICIT="$(swivm_print_implicit_alias local "${PATTERN}" 2>/dev/null)"
if [ -n "${IMPLICIT}" ]; then
swivm_ensure_version_prefix "${IMPLICIT}"
fi
fi
return 2
}
swivm_resolve_local_alias() {
if [ -z "$1" ]; then
return 1
fi
local VERSION
local EXIT_CODE
VERSION="$(swivm_resolve_alias "$1")"
EXIT_CODE=$?
if [ -z "$VERSION" ]; then
return $EXIT_CODE
fi
if [ "_$VERSION" != "_∞" ]; then
swivm_version "$VERSION"
else
echo "$VERSION"
fi
}
swivm_version_mode() {
local VERSION
VERSION="$1"
local NORMALIZED_VERSION
NORMALIZED_VERSION="$(swivm_normalize_version "$VERSION")"
local MOD
MOD=$(expr "$NORMALIZED_VERSION" \/ 1000000 \% 2)
local MODE
MODE='stable'
if [ "$MOD" -eq 1 ]; then
MODE='devel'
fi
echo "$MODE"
}
swivm_is_stable_version() {
local VERSION
VERSION="$1"
local MODE
MODE="$(swivm_version_mode "$VERSION")"
if [ "_$MODE" = "_stable" ]; then
return 0
fi
return 1
}
swivm_ls() {
local PATTERN
PATTERN="${1-}"
local VERSIONS
VERSIONS=''
if [ "${PATTERN}" = 'current' ]; then
swivm_ls_current
return
fi
case "${PATTERN}" in
*)
if swivm_resolve_local_alias "${PATTERN}"; then
return
fi
PATTERN="$(swivm_ensure_version_prefix "${PATTERN}")"
;;
esac
if [ "${PATTERN}" = 'N/A' ]; then
return
fi
# If it looks like an explicit version, don't do anything funny
local SWIVM_PATTERN_STARTS_WITH_V
case $PATTERN in
v*) SWIVM_PATTERN_STARTS_WITH_V=true ;;
*) SWIVM_PATTERN_STARTS_WITH_V=false ;;
esac
if [ $SWIVM_PATTERN_STARTS_WITH_V = true ] && [ "_$(swivm_num_version_groups "${PATTERN}")" = "_3" ]; then
if swivm_is_version_installed "${PATTERN}"; then
VERSIONS="${PATTERN}"
fi
else
case "${PATTERN}" in
"system") ;;
*)
local NUM_VERSION_GROUPS
NUM_VERSION_GROUPS="$(swivm_num_version_groups "${PATTERN}")"
if [ "${NUM_VERSION_GROUPS}" = "2" ] || [ "${NUM_VERSION_GROUPS}" = "1" ]; then
PATTERN="${PATTERN%.}."
fi
;;
esac
swivm_is_zsh && setopt local_options shwordsplit
local SWIVM_DIRS_TO_SEARCH1
SWIVM_DIRS_TO_SEARCH1=''
SWIVM_ADD_SYSTEM=false
SWIVM_DIRS_TO_SEARCH="$(swivm_version_dir)"
if swivm_has_system ; then
SWIVM_ADD_SYSTEM=true
fi
if ! [ -d "${SWIVM_DIRS_TO_SEARCH}" ] || ! (command ls -1qA "${SWIVM_DIRS_TO_SEARCH}" | swivm_grep -q .); then
SWIVM_DIRS_TO_SEARCH=''
fi
local SEARCH_PATTERN
if [ -z "${PATTERN}" ]; then
PATTERN='v'
SEARCH_PATTERN='.*'
else
SEARCH_PATTERN="$(swivm_echo "${PATTERN}" | command sed 's#\.#\\\.#g;')"
fi
if [ -n "${SWIVM_DIRS_TO_SEARCH}" ]; then
VERSIONS="$(command find "${SWIVM_DIRS_TO_SEARCH}"/* -name . -o -type d -prune -o -path "${PATTERN}*" \
| command sed -e "
s#^${SWIVM_DIR}/##;
\\#^[^v]# d;
\\#^versions\$# d;
s#^versions/##;
\\#${SEARCH_PATTERN}# !d;
" \
-e 's#^\([^/]\{1,\}\)/\(.*\)$#\2.\1#;' \
| command sort -t. -u -k 1.2,1n -k 2,2n -k 3,3n \
)"
fi
fi
if [ "${SWIVM_ADD_SYSTEM-}" = true ]; then
if [ -z "${PATTERN}" ] || [ "${PATTERN}" = 'v' ]; then
VERSIONS="${VERSIONS}$(command printf '\n%s' 'system')"
elif [ "${PATTERN}" = 'system' ]; then
VERSIONS="$(command printf '%s' 'system')"
fi
fi
if [ -z "${VERSIONS}" ]; then
swivm_echo 'N/A'
return 3
fi
swivm_echo "${VERSIONS}"
}
swivm_ls_remote() {
local PATTERN
PATTERN="${1-}"
if swivm_validate_implicit_alias "${PATTERN}" 2>/dev/null ; then
local IMPLICIT
IMPLICIT="$(swivm_print_implicit_alias remote "${PATTERN}")"
if [ -z "${IMPLICIT-}" ] || [ "${IMPLICIT}" = 'N/A' ]; then
swivm_echo "N/A"
return 3
fi
PATTERN="$(swivm_ls_remote "${IMPLICIT}" | command tail -1 | command awk '{ print $1 }')"
elif [ -n "${PATTERN}" ]; then
PATTERN="$(swivm_ensure_version_prefix "${PATTERN}")"
else
PATTERN=".*"
fi
swivm_ls_remote_index "$SWIVM_MIRROR" "${PATTERN}"
}
swivm_ls_remote_index() {
if [ "$#" -lt 2 ]; then
echo "not enough arguments" >&2
return 5
fi
local PREFIX
PREFIX=''
local SORT_COMMAND
SORT_COMMAND='sort -t. -u -k 1,1n -k 2,2n -k 3,3n'
local MIRROR
MIRROR="$1"
local PATTERN
PATTERN="$2"
local VERSIONS
if [ -z "$PATTERN" ]; then
PATTERN=".*"
fi
ZHS_HAS_SHWORDSPLIT_UNSET=1
if swivm_has "setopt"; then
ZHS_HAS_SHWORDSPLIT_UNSET=$(setopt | command grep shwordsplit > /dev/null ; echo $?)
setopt shwordsplit
fi
VERSIONS="$(swivm_download -L -s "$MIRROR/devel/src/" "$MIRROR/stable/src/" -o - \
| command grep -E 'a href=\"(swi)?pl\-' \
| command sed -E 's/^.*a href="(swi)?pl\-(.*)\.tar\.gz".*$/\2/' \
| command sed -E 's/^/v/' \
| command grep -w "^$PATTERN" \
| command sed -E 's/^v//' \
| $SORT_COMMAND \
| command sed -E 's/^/v/')"
if [ "$ZHS_HAS_SHWORDSPLIT_UNSET" -eq 1 ] && swivm_has "unsetopt"; then
unsetopt shwordsplit
fi
if [ -z "$VERSIONS" ]; then
echo "N/A"
return 3
fi
echo "$VERSIONS"
}
swivm_print_versions() {
local VERSION
local FORMAT
local SWIVM_CURRENT
SWIVM_CURRENT=$(swivm_ls_current)
local SWIVM_HAS_COLORS
if [ -z "${SWIVM_NO_COLORS-}" ] && swivm_has_colors; then
SWIVM_HAS_COLORS=1
fi
swivm_echo "${1-}" \
| command sed '1!G;h;$!d' \
| command sed '1!G;h;$!d' \
| while read -r VERSION_LINE; do
VERSION="${VERSION_LINE%% *}"
FORMAT='%15s'
if [ "_${VERSION}" = "_${SWIVM_CURRENT}" ]; then
if [ "${SWIVM_HAS_COLORS-}" = '1' ]; then
FORMAT='\033[0;32m-> %12s\033[0m'
else
FORMAT='-> %12s *'
fi
elif [ "${VERSION}" = "system" ]; then
if [ "${SWIVM_HAS_COLORS-}" = '1' ]; then
FORMAT='\033[0;33m%15s\033[0m'
else
FORMAT='%15s *'
fi
elif swivm_is_version_installed "${VERSION}"; then
if [ "${SWIVM_HAS_COLORS-}" = '1' ]; then
FORMAT='\033[0;34m%15s\033[0m'
else
FORMAT='%15s *'
fi
fi
command printf -- "${FORMAT}\\n" "${VERSION}"
done
}
swivm_validate_implicit_alias() {
case "$1" in
"stable" | "devel" )
return
;;
*)
echo "Only implicit aliases 'stable' and 'devel' are supported." >&2
return 1
;;
esac
}
swivm_print_implicit_alias() {
if [ "_$1" != "_local" ] && [ "_$1" != "_remote" ]; then
echo "swivm_print_implicit_alias must be specified with local or remote as the first argument." >&2
return 1
fi
local SWIVM_IMPLICIT
SWIVM_IMPLICIT="$2"
if ! swivm_validate_implicit_alias "$SWIVM_IMPLICIT"; then
return 2
fi
local ZHS_HAS_SHWORDSPLIT_UNSET
local SWIVM_COMMAND
local SWIVM_ADD_PREFIX_COMMAND
local LAST_TWO
SWIVM_COMMAND="swivm_ls_remote"
if [ "_$1" = "_local" ]; then
SWIVM_COMMAND="swivm_ls"
fi
ZHS_HAS_SHWORDSPLIT_UNSET=1
if swivm_has "setopt"; then
ZHS_HAS_SHWORDSPLIT_UNSET=$(setopt | command grep shwordsplit > /dev/null ; echo $?)
setopt shwordsplit
fi
LAST_TWO=$($SWIVM_COMMAND | command cut -d . -f 1,2 | uniq)
if [ "$ZHS_HAS_SHWORDSPLIT_UNSET" -eq 1 ] && swivm_has "unsetopt"; then
unsetopt shwordsplit
fi
local MINOR
local STABLE
local UNSTABLE
local MOD
ZHS_HAS_SHWORDSPLIT_UNSET=1
if swivm_has "setopt"; then
ZHS_HAS_SHWORDSPLIT_UNSET=$(setopt | command grep shwordsplit > /dev/null ; echo $?)
setopt shwordsplit
fi
for MINOR in $LAST_TWO; do
MOD="$(swivm_version_mode "$MINOR")"
# TODO
NORMALIZED_VERSION="$(swivm_normalize_version "$MINOR")"
MOD=$(expr "$NORMALIZED_VERSION" \/ 1000000 \% 2)
if [ "$MOD" -eq 0 ]; then
STABLE="$MINOR"
elif [ "$MOD" -eq 1 ]; then
UNSTABLE="$MINOR"
fi
done
if [ "$ZHS_HAS_SHWORDSPLIT_UNSET" -eq 1 ] && swivm_has "unsetopt"; then
unsetopt shwordsplit
fi
if [ "_$2" = '_stable' ]; then
echo "${STABLE}"
elif [ "_$2" = '_devel' ]; then
echo "${UNSTABLE}"
fi
}
swivm_get_os() {
local SWIVM_UNAME
SWIVM_UNAME="$(uname -a)"
local SWIVM_OS
case "$SWIVM_UNAME" in
Linux\ *) SWIVM_OS=linux ;;
Darwin\ *) SWIVM_OS=darwin ;;
SunOS\ *) SWIVM_OS=sunos ;;
FreeBSD\ *) SWIVM_OS=freebsd ;;
esac
echo "$SWIVM_OS"
}
swivm_get_arch() {
local HOST_ARCH
local SWIVM_OS
local EXIT_CODE
SWIVM_OS="$(swivm_get_os)"
# If the OS is SunOS, first try to use pkgsrc to guess
# the most appropriate arch. If it's not available, use
# isainfo to get the instruction set supported by the
# kernel.
if [ "_$SWIVM_OS" = "_sunos" ]; then
HOST_ARCH=$(pkg_info -Q MACHINE_ARCH pkg_install)
EXIT_CODE=$?
if [ $EXIT_CODE -ne 0 ]; then
HOST_ARCH=$(isainfo -n)
fi
else
HOST_ARCH="$(uname -m)"
fi
local SWIVM_ARCH
case "$HOST_ARCH" in
x86_64 | amd64) SWIVM_ARCH="x64" ;;
i*86) SWIVM_ARCH="x86" ;;
*) SWIVM_ARCH="$HOST_ARCH" ;;
esac
echo "$SWIVM_ARCH"
}
swivm_ensure_default_set() {
local VERSION
VERSION="$1"
if [ -z "$VERSION" ]; then
echo 'swivm_ensure_default_set: a version is required' >&2
return 1
fi
if swivm_alias default >/dev/null 2>&1; then
# default already set
return 0
fi
local OUTPUT
OUTPUT="$(swivm alias default "$VERSION")"
local EXIT_CODE
EXIT_CODE="$?"
echo "Creating default alias: $OUTPUT"
return $EXIT_CODE
}
swivm_get_make_jobs() {
if swivm_is_natural_num "${1-}"; then
SWIVM_MAKE_JOBS="$1"
swivm_echo "number of \`make\` jobs: ${SWIVM_MAKE_JOBS}"
return
elif [ -n "${1-}" ]; then
unset SWIVM_MAKE_JOBS
swivm_err "$1 is invalid for number of \`make\` jobs, must be a natural number"
fi
local SWIVM_OS
SWIVM_OS="$(swivm_get_os)"
local SWIVM_CPU_CORES
case "_${SWIVM_OS}" in
"_linux")
SWIVM_CPU_CORES="$(swivm_grep -c -E '^processor.+: [0-9]+' /proc/cpuinfo)"
;;
"_freebsd" | "_darwin")
SWIVM_CPU_CORES="$(sysctl -n hw.ncpu)"
;;
"_sunos")
SWIVM_CPU_CORES="$(psrinfo | wc -l)"