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|
#!/bin/sh
# A word about this shell script:
#
# It must work everywhere, including on systems that lack
# a /bin/bash, map 'sh' to ksh, ksh97, bash, ash, or zsh,
# and potentially have either a posix shell or bourne
# shell living at /bin/sh.
#
# See this helpful document on writing portable shell scripts:
# http://www.gnu.org/s/hello/manual/autoconf/Portable-Shell.html
#
# The only shell it won't ever work on is cmd.exe.
if [ "x$0" = "xsh" ]; then
# run as curl | sh
# on some systems, you can just do cat>npm-install.sh
# which is a bit cuter. But on others, &1 is already closed,
# so catting to another script file won't do anything.
# Follow Location: headers, and fail on errors
curl -f -L -s https://www.npmjs.org/install.sh > npm-install-$$.sh
ret=$?
if [ $ret -eq 0 ]; then
(exit 0)
else
rm npm-install-$$.sh
echo "failed to download script" >&2
exit $ret
fi
sh npm-install-$$.sh
ret=$?
rm npm-install-$$.sh
exit $ret
fi
debug=0
npm_config_loglevel="error"
if [ "x$npm_debug" = "x" ]; then
(exit 0)
else
echo "running in debug mode."
echo "note that this requires bash or zsh."
set -o xtrace
set -o pipefail
npm_config_loglevel="verbose"
debug=1
fi
export npm_config_loglevel
# make sure that node exists
node=`which node 2>&1`
ret=$?
# if not found, try "nodejs" as it is the case on debian
if [ $ret -ne 0 ]; then
node=`which nodejs 2>&1`
ret=$?
fi
if [ $ret -eq 0 ] && [ -x "$node" ]; then
if [ $debug -eq 1 ]; then
echo "found 'node' at: $node"
echo -n "version: "
$node --version
echo ""
fi
(exit 0)
else
echo "npm cannot be installed without node.js." >&2
echo "install node first, and then try again." >&2
echo "" >&2
exit $ret
fi
ret=0
tar="${TAR}"
if [ -z "$tar" ]; then
tar="${npm_config_tar}"
fi
if [ -z "$tar" ]; then
tar=`which tar 2>&1`
ret=$?
fi
if [ $ret -eq 0 ] && [ -x "$tar" ]; then
if [ $debug -eq 1 ]; then
echo "found 'tar' at: $tar"
echo -n "version: "
$tar --version
echo ""
fi
ret=$?
fi
if [ $ret -eq 0 ]; then
(exit 0)
else
echo "this script requires 'tar', please install it and try again."
exit 1
fi
curl=`which curl 2>&1`
ret=$?
if [ $ret -eq 0 ]; then
if [ $debug -eq 1 ]; then
echo "found 'curl' at: $curl"
echo -n "version: "
$curl --version | head -n 1
echo ""
fi
(exit 0)
else
echo "this script requires 'curl', please install it and try again."
exit 1
fi
# set the temp dir
TMP="${TMPDIR}"
if [ "x$TMP" = "x" ]; then
TMP="/tmp"
fi
TMP="${TMP}/npm.$$"
rm -rf "$TMP" || true
mkdir "$TMP"
if [ $? -ne 0 ]; then
echo "failed to mkdir $TMP" >&2
exit 1
fi
BACK="$PWD"
t="${npm_install}"
if [ -z "$t" ]; then
t="latest"
fi
# need to echo "" after, because Posix sed doesn't treat EOF
# as an implied end of line.
url=`(curl -SsL https://registry.npmjs.org/npm/$t; echo "") \
| sed -e 's/^.*tarball":"//' \
| sed -e 's/".*$//'`
ret=$?
if [ "x$url" = "x" ]; then
ret=125
# try without the -e arg to sed.
url=`(curl -SsL https://registry.npmjs.org/npm/$t; echo "") \
| sed 's/^.*tarball":"//' \
| sed 's/".*$//'`
ret=$?
if [ "x$url" = "x" ]; then
ret=125
fi
fi
if [ $ret -ne 0 ]; then
echo "failed to get tarball url for npm/$t" >&2
exit $ret
fi
echo "fetching: $url" >&2
cd "$TMP" \
&& curl -SsL -o npm.tgz "$url" \
&& $tar -xzf npm.tgz \
&& cd "$TMP"/package \
&& echo "removing existing npm" \
&& "$node" bin/npm-cli.js rm npm -gf --loglevel=silent \
&& echo "installing npm@$t" \
&& "$node" bin/npm-cli.js install -gf ../npm.tgz \
&& cd "$BACK" \
&& rm -rf "$TMP" \
&& echo "successfully installed npm@$t"
ret=$?
if [ $ret -ne 0 ]; then
echo "failed!" >&2
fi
exit $ret
|
