new modes

npm-install-635.sh

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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