From c7fdc90e9b9244a8db49658adac0bcc915711c5f Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Sat, 29 Jul 2017 18:50:05 +0900
Subject: [PATCH 01/24] add scala-2.12.3 (#45)

---
 plugins/scala-install/share/scala-2.12.3 | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 plugins/scala-install/share/scala-2.12.3

diff --git a/plugins/scala-install/share/scala-2.12.3 b/plugins/scala-install/share/scala-2.12.3
new file mode 100644
index 0000000..7f72210
--- /dev/null
+++ b/plugins/scala-install/share/scala-2.12.3
@@ -0,0 +1,4 @@
+sites=(
+    "http://www.scala-lang.org/files/archive"
+    );
+archive_file="scala-2.12.3.tgz"
\ No newline at end of file

From f961ae11a160affae88be6250c748e1de8222e82 Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Sun, 30 Jul 2017 03:19:21 +0900
Subject: [PATCH 02/24] fix dotty's version name

---
 plugins/scala-install/bin/scalaenv-install | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/plugins/scala-install/bin/scalaenv-install b/plugins/scala-install/bin/scalaenv-install
index 127a43a..ab9da5d 100755
--- a/plugins/scala-install/bin/scalaenv-install
+++ b/plugins/scala-install/bin/scalaenv-install
@@ -57,7 +57,14 @@ if [ -f "${recipe}" ]; then
     fi
     if [ $? ]; then
       echo "Extracting files..."
-      tar xf "${SCALAENV_ROOT}/versions/${archive_file}" -C "${SCALAENV_ROOT}/versions"
+      if [ $(echo ${SCALAENV_ROOT}/versions/${archive_file} | grep "dotty") ]; then
+        tar xf "${SCALAENV_ROOT}/versions/${archive_file}" -C "${SCALAENV_ROOT}/versions"
+        if [ -d ${SCALAENV_ROOT}/versions/${version}-bin-SNAPSHOT ]; then
+          mv "${SCALAENV_ROOT}/versions/${version}-bin-SNAPSHOT" "${SCALAENV_ROOT}/versions/${version}"
+        fi
+      else
+        tar xf "${SCALAENV_ROOT}/versions/${archive_file}" -C "${SCALAENV_ROOT}/versions"
+      fi
       if [ $? ]; then
         rm -f "${SCALAENV_ROOT}/versions/${archive_file}"
         test ! -z "${sha1sum_file}" && rm -f "${SCALAENV_ROOT}/versions/${sha1sum_file}"

From 4a6df15560da98512fe81b7d9aa24558fecd94ad Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Sun, 30 Jul 2017 03:30:48 +0900
Subject: [PATCH 03/24] check already installed version

---
 plugins/scala-install/bin/scalaenv-install | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/plugins/scala-install/bin/scalaenv-install b/plugins/scala-install/bin/scalaenv-install
index ab9da5d..616c8cc 100755
--- a/plugins/scala-install/bin/scalaenv-install
+++ b/plugins/scala-install/bin/scalaenv-install
@@ -45,6 +45,10 @@ if [ -f "${recipe}" ]; then
   echo "Installing ${version}:"
   for (( i=0; i<${#sites[@]}; ++i))
   do
+    if [ -d ${SCALAENV_ROOT}/versions/${version} ]; then
+      echo "${version} is already installed."
+      break
+    fi
     mkdir -p "${SCALAENV_ROOT}/versions"
     cwd="$(pwd)"
     cd "${SCALAENV_ROOT}/versions"

From 9c8f8e82a0b0fd9e405fbbeab414c84faa0bf60a Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Sun, 30 Jul 2017 03:55:43 +0900
Subject: [PATCH 04/24] add a comment for scalaenv-install

---
 plugins/scala-install/bin/scalaenv-install | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/plugins/scala-install/bin/scalaenv-install b/plugins/scala-install/bin/scalaenv-install
index 616c8cc..c2ce1e8 100755
--- a/plugins/scala-install/bin/scalaenv-install
+++ b/plugins/scala-install/bin/scalaenv-install
@@ -1,5 +1,15 @@
 #!/usr/bin/env bash
-
+#
+# Summary: Install a Scala/Dotty version
+#
+# Usage: scalaenv install <version>
+#        scalaenv install -l|--list
+#        scalaenv install --version
+#
+#   -l/--list          List all available versions
+#   -s/--skip-existing Skip if the version appears to be installed already
+#
+# Install available Scala versions
 set -e
 test -n "${SCALAENV_DEBUG}" && set -x
 

From f3f4b365f4ce32b8d9c0c977592f539ce23d07fa Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Sun, 30 Jul 2017 03:55:55 +0900
Subject: [PATCH 05/24] add scalaenv-uninstall

---
 plugins/scala-install/bin/scalaenv-uninstall | 56 ++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100755 plugins/scala-install/bin/scalaenv-uninstall

diff --git a/plugins/scala-install/bin/scalaenv-uninstall b/plugins/scala-install/bin/scalaenv-uninstall
new file mode 100755
index 0000000..2e83cd8
--- /dev/null
+++ b/plugins/scala-install/bin/scalaenv-uninstall
@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+#
+# Summary: Uninstall a specific Scala version
+#
+# Usage: scalaenv uninstall [-f|--force] <version>
+#
+#    -f  Attempt to remove the specified version without prompting
+#        for confirmation. If the version does not exist, do not
+#        display an error message.
+#
+set -e
+
+if [ "$1" = "--complete" ]; then
+  echo --force
+  exec scalaenv versions --bare
+fi
+
+usage() {
+  scalaenv-help uninstall 2>/dev/null
+  [ -z "$1" ] || exit "$1"
+}
+
+if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
+  usage 0
+fi
+
+unset FORCE
+if [ "$1" = "-f" ] || [ "$1" = "--force" ]; then
+  FORCE=true
+  shift
+fi
+
+[ "$#" -eq 1 ] || usage 1 >&2
+
+DEFINITION="$1"
+case "$DEFINITION" in
+"" | -* )
+  usage 1 >&2
+  ;;
+esac
+
+VERSION_NAME="${DEFINITION##*/}"
+PREFIX="${SCALAENV_ROOT}/versions/${VERSION_NAME}"
+
+if [ -z "$FORCE" ]; then
+  if [ ! -d "$PREFIX" ]; then
+    echo "scalaenv: version \`$VERSION_NAME\` not installed" >&2
+    exit 1
+  fi
+
+  read -p "scalaenv: remove $PREFIX? "
+  case "$REPLY" in
+  y* | Y* ) ;;
+  * ) exit 1 ;;
+  esac
+fi

From 5e2027e7b159335bfe60bb4b4217f9421843267f Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Sun, 30 Jul 2017 04:19:11 +0900
Subject: [PATCH 06/24] fix scalaenv-install

---
 plugins/scala-install/bin/scalaenv-install | 2 --
 1 file changed, 2 deletions(-)

diff --git a/plugins/scala-install/bin/scalaenv-install b/plugins/scala-install/bin/scalaenv-install
index c2ce1e8..c9974c0 100755
--- a/plugins/scala-install/bin/scalaenv-install
+++ b/plugins/scala-install/bin/scalaenv-install
@@ -4,10 +4,8 @@
 #
 # Usage: scalaenv install <version>
 #        scalaenv install -l|--list
-#        scalaenv install --version
 #
 #   -l/--list          List all available versions
-#   -s/--skip-existing Skip if the version appears to be installed already
 #
 # Install available Scala versions
 set -e

From 9ca61c1821ebcc82447bb97e15392a3c44f832eb Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Sun, 30 Jul 2017 04:51:49 +0900
Subject: [PATCH 07/24] fix scalaenv-unistall

---
 plugins/scala-install/bin/scalaenv-uninstall | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/plugins/scala-install/bin/scalaenv-uninstall b/plugins/scala-install/bin/scalaenv-uninstall
index 2e83cd8..1d9ac47 100755
--- a/plugins/scala-install/bin/scalaenv-uninstall
+++ b/plugins/scala-install/bin/scalaenv-uninstall
@@ -54,3 +54,8 @@ if [ -z "$FORCE" ]; then
   * ) exit 1 ;;
   esac
 fi
+
+if [ -d "$PREFIX" ]; then
+  rm -rf "$PREFIX"
+  scalaenv-rehash
+fi

From b8cb470686752a8a9454e6ee819f100e78a63b13 Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Sun, 30 Jul 2017 09:29:33 +0900
Subject: [PATCH 08/24] fix the comment for scalaenv-install

---
 plugins/scala-install/bin/scalaenv-install | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/plugins/scala-install/bin/scalaenv-install b/plugins/scala-install/bin/scalaenv-install
index c9974c0..9c6c6b3 100755
--- a/plugins/scala-install/bin/scalaenv-install
+++ b/plugins/scala-install/bin/scalaenv-install
@@ -3,11 +3,8 @@
 # Summary: Install a Scala/Dotty version
 #
 # Usage: scalaenv install <version>
-#        scalaenv install -l|--list
 #
-#   -l/--list          List all available versions
-#
-# Install available Scala versions
+# Install available Scala/Dotty versions
 set -e
 test -n "${SCALAENV_DEBUG}" && set -x
 

From 522104e0ceac68690d3b493aeba26ac900ff55a8 Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Wed, 2 Aug 2017 10:41:40 +0900
Subject: [PATCH 09/24] fix the way to check if already installed the same
 version

---
 plugins/scala-install/bin/scalaenv-install | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/plugins/scala-install/bin/scalaenv-install b/plugins/scala-install/bin/scalaenv-install
index 9c6c6b3..399a653 100755
--- a/plugins/scala-install/bin/scalaenv-install
+++ b/plugins/scala-install/bin/scalaenv-install
@@ -48,12 +48,12 @@ recipe="$(abs_dirname ${0})/../share/${version}"
 if [ -f "${recipe}" ]; then
   source ${recipe}
   echo "Installing ${version}:"
+  if [ -d ${SCALAENV_ROOT}/versions/${version} ]; then
+    echo "${version} is already installed."
+    exit 1
+  fi
   for (( i=0; i<${#sites[@]}; ++i))
   do
-    if [ -d ${SCALAENV_ROOT}/versions/${version} ]; then
-      echo "${version} is already installed."
-      break
-    fi
     mkdir -p "${SCALAENV_ROOT}/versions"
     cwd="$(pwd)"
     cd "${SCALAENV_ROOT}/versions"

From e30ef3088ac29d264008f383edfdc6b0238ab85d Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Wed, 2 Aug 2017 18:39:42 +0900
Subject: [PATCH 10/24] add scala-2.13.0-M2 (#46)

---
 plugins/scala-install/share/scala-2.13.0-M2 | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 plugins/scala-install/share/scala-2.13.0-M2

diff --git a/plugins/scala-install/share/scala-2.13.0-M2 b/plugins/scala-install/share/scala-2.13.0-M2
new file mode 100644
index 0000000..216d6dd
--- /dev/null
+++ b/plugins/scala-install/share/scala-2.13.0-M2
@@ -0,0 +1,4 @@
+sites=(
+    "http://www.scala-lang.org/files/archive"
+    );
+archive_file="scala-2.13.0-M2.tgz"

From d6057f7e0359ad8ee063d1a55b6775a98b8d3755 Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Tue, 8 Aug 2017 09:02:03 +0900
Subject: [PATCH 11/24] fix scalaenv--version

---
 libexec/scalaenv---version | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libexec/scalaenv---version b/libexec/scalaenv---version
index 8ae4798..a095a31 100755
--- a/libexec/scalaenv---version
+++ b/libexec/scalaenv---version
@@ -12,7 +12,7 @@
 set -e
 test -n "${SCALAENV_DEBUG}" && set -x
 
-version="0.0.12"
+version="0.0.14"
 
 if cd "${SCALAENV_ROOT}" 2> /dev/null; then
   git_revision="$(git describe --tags HEAD 2> /dev/null || true)"

From 3c692e79c8195bff0e76aca3f607fbc348d4882c Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Wed, 9 Aug 2017 23:51:31 +0900
Subject: [PATCH 12/24] fix the old url

---
 libexec/scalaenv-help | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libexec/scalaenv-help b/libexec/scalaenv-help
index cc4bb1f..ce067bc 100755
--- a/libexec/scalaenv-help
+++ b/libexec/scalaenv-help
@@ -146,7 +146,7 @@ if [ -z "$1" ] || [ "$1" == "scalaenv" ]; then
   print_summaries commands local global shell install uninstall rehash version versions which whence
   echo
   echo "See \`scalaenv help <command>' for information on a specific command."
-  echo "For full documentation, see: https://github.com/mazgi/scalaenv"
+  echo "For full documentation, see: https://github.com/scalaenv/scalaenv"
 else
   command="$1"
   if [ -n "$(command_path "$command")" ]; then

From 3cfbc5a26ba98a9e464d756fcd12d1b1581fc5aa Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Tue, 15 Aug 2017 09:43:00 +0900
Subject: [PATCH 13/24] enhanced scalaenv-install (#47)

- Add detailed explanations for the usage and error messages
- Add new option, -f|--force, -l|--list and -h|--help
- Run `scalaenv-rehash` after a successful installation
- Some fixes
---
 plugins/scala-install/bin/scalaenv-install | 169 ++++++++++++++++-----
 1 file changed, 129 insertions(+), 40 deletions(-)

diff --git a/plugins/scala-install/bin/scalaenv-install b/plugins/scala-install/bin/scalaenv-install
index 399a653..87f9572 100755
--- a/plugins/scala-install/bin/scalaenv-install
+++ b/plugins/scala-install/bin/scalaenv-install
@@ -2,7 +2,13 @@
 #
 # Summary: Install a Scala/Dotty version
 #
-# Usage: scalaenv install <version>
+# Usage: scalaenv install [-f] <version>
+#        scalaenv install -l|--list
+#        scalaenv install -h|--help
+#
+#   -l/--list             List all available versions
+#   -f/--force            Install even if the version appears to be installed already
+#   -h/--help             Show the usage for `scalaenv-install`
 #
 # Install available Scala/Dotty versions
 set -e
@@ -19,6 +25,11 @@ if [ -z "${READLINK}" ]; then
   exit 1
 fi
 
+usage () {
+  scalaenv-help install 2>/dev/null
+  [ -z "$1" ] || exit "$1"
+}
+
 resolve_link() {
   ${READLINK} "${1}"
 }
@@ -37,55 +48,133 @@ abs_dirname() {
   cd "${cwd}"
 }
 
+
+unset FORCE
+unset VERSION
+
+for OPT in "$@"; do
+  case "$OPT" in
+    '-h' | '--help' )
+      usage 0
+      ;;
+    '-l' | '--list' )
+      echo "All available versions:"
+      ls -1 $(abs_dirname $0)/../share
+      exit 0
+      ;;
+    '-f' | '--force' )
+      FORCE=true
+      shift 1
+      ;;
+    '-' | '--' )
+      shift 1
+      param+=( "$@" )
+      break
+      ;;
+    -*)
+      echo "$(basename $0): illegal option -- '$(echo $1 | sed 's/^-*//')'" 1>&2
+      exit 1
+      ;;
+    *)
+      if [[ ! -z "$1" ]] && [[ ! "$1" =~ ^-+ ]]; then
+        param+=( "$1" )
+        shift 1
+      fi
+      ;;
+  esac
+done
+
+if [ -z $param ]; then
+  usage 1
+fi
+
+VERSION=${param}
 SHA1SUM=$(type -p sha1sum shasum | head -1)
+
 if [ -z "${SHA1SUM}" ]; then
   echo "scala-install: connot find sha1sum - are you missing GNU coreutils?" >& 2
   exit 1
 fi
 
-version=${1}
-recipe="$(abs_dirname ${0})/../share/${version}"
-if [ -f "${recipe}" ]; then
-  source ${recipe}
-  echo "Installing ${version}:"
-  if [ -d ${SCALAENV_ROOT}/versions/${version} ]; then
-    echo "${version} is already installed."
-    exit 1
+if [ -d ${SCALAENV_ROOT}/versions/${VERSION} ]; then
+  if [ -z "$FORCE" ]; then
+    echo "scalaenv: ${VERSION} already exists" >&2
+    read -p "continue with installation? (y/N) "
+    case "$REPLY" in
+      y* | Y* ) ;;
+      * ) exit 1 ;;
+    esac
   fi
-  for (( i=0; i<${#sites[@]}; ++i))
-  do
-    mkdir -p "${SCALAENV_ROOT}/versions"
-    cwd="$(pwd)"
-    cd "${SCALAENV_ROOT}/versions"
-    echo "Downloading ${version} archives..."
-    curl -#LO "${sites[$i]}/${archive_file}"
-    if [ ! -z "${sha1sum_file}" ]; then
-      curl -#LO "${sites[$i]}/${sha1sum_file}"
-      echo "Checking SHA-1 checksum..."
-      "${SHA1SUM}" --check "${sha1sum_file}"
-    fi
-    if [ $? ]; then
-      echo "Extracting files..."
-      if [ $(echo ${SCALAENV_ROOT}/versions/${archive_file} | grep "dotty") ]; then
-        tar xf "${SCALAENV_ROOT}/versions/${archive_file}" -C "${SCALAENV_ROOT}/versions"
-        if [ -d ${SCALAENV_ROOT}/versions/${version}-bin-SNAPSHOT ]; then
-          mv "${SCALAENV_ROOT}/versions/${version}-bin-SNAPSHOT" "${SCALAENV_ROOT}/versions/${version}"
-        fi
-      else
-        tar xf "${SCALAENV_ROOT}/versions/${archive_file}" -C "${SCALAENV_ROOT}/versions"
+fi
+
+# scalaenv's recipe for installing scala/dotty binary
+RECIPE="$(abs_dirname ${0})/../share/${VERSION}"
+
+# if PREFIX is existed, PREFIX_EXISTS is 1
+PREFIX="${SCALAENV_ROOT}/versions/${VERSION}"
+[ -d "${PREFIX}" ] && PREFIX_EXISTS=1
+
+scalaenv-build () {
+  if [ -f "${RECIPE}" ]; then
+    source ${RECIPE}
+    echo "Installing ${VERSION}:"
+    for (( i=0; i<${#sites[@]}; ++i))
+    do
+      versions_dir="${SCALAENV_ROOT}/versions"
+      mkdir -p ${versions_dir}
+      cwd="$(pwd)"
+      cd "${SCALAENV_ROOT}/versions"
+      echo "Downloading ${VERSION} archives..."
+      curl -#LO "${sites[$i]}/${archive_file}"
+      if [ ! -z "${sha1sum_file}" ]; then
+        curl -#LO "${sites[$i]}/${sha1sum_file}"
+        echo "Checking SHA-1 checksum..."
+        "${SHA1SUM}" --check "${sha1sum_file}"
       fi
       if [ $? ]; then
-        rm -f "${SCALAENV_ROOT}/versions/${archive_file}"
-        test ! -z "${sha1sum_file}" && rm -f "${SCALAENV_ROOT}/versions/${sha1sum_file}"
+        echo "Extracting files..."
+        if [ -d "${versions_dir}/${VERSION}" ]; then
+          rm -rf "${versions_dir}/${VERSION}"
+        fi
+        mkdir -p "${versions_dir}/${VERSION}" && \
+          tar xf "${versions_dir}/${archive_file}" \
+              -C "${versions_dir}/${VERSION}" \
+              --strip-components 1
+        if [ $? ]; then
+          rm -f "${versions_dir}/${archive_file}"
+          test ! -z "${sha1sum_file}" && rm -f "${versions_dir}/${sha1sum_file}"
+        fi
+        echo "${VERSION} installed."
+        break
       fi
-      echo "${version} installed."
-      break
-    fi
-    cd "${cwd}"
-    echo "${version} install failed."
-  done
+      cd "${cwd}"
+      echo "${VERSION} install failed."
+    done
+  else
+    {
+      echo "$(basename $0): definition not found: ${VERSION}"
+      echo
+      echo "See all available versions with \`scalaenv install --list\`."
+      echo
+      echo -n "If the version you need is missing, try upgrading scalaenv."
+      echo
+    } >&2
+  fi
+}
+
+cleanup () {
+  [ -z "${PREFIX_EXISTS}" ] && rm -rf "$PREFIX"
+}
+
+# Invoke `scalaenv-build` and record the exit status in $STATUS
+STATUS=0
+scalaenv-build || STATUS="$?"
+
+# Run `scalaenv-rehash` after a successful installation
+if [ "$STATUS" == "0" ]; then
+  scalaenv-rehash
 else
-  echo "All available versions:"
-  ls -1 $(abs_dirname $0)/../share
+  cleanup
 fi
 
+exit "$STATUS"

From 1027f72038546368b0f44189dc601fd50cf832fc Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Tue, 15 Aug 2017 20:31:10 +0900
Subject: [PATCH 14/24] Fix the behavior of `scalaenv` option

---
 libexec/scalaenv | 33 +++++++++++++++++++++++++--------
 1 file changed, 25 insertions(+), 8 deletions(-)

diff --git a/libexec/scalaenv b/libexec/scalaenv
index d884c26..e9be6e4 100755
--- a/libexec/scalaenv
+++ b/libexec/scalaenv
@@ -25,6 +25,14 @@ if [ -z "${READLINK}" ]; then
   exit 1
 fi
 
+abort() {
+  { if [ "$#" -eq 0 ]; then cat -
+    else echo "scalaenv: $*"
+    fi
+  } >&2
+  exit 1
+}
+
 resolve_link() {
   ${READLINK} "${1}"
 }
@@ -86,20 +94,29 @@ shopt -u nullglob
 
 command="${1}"
 case "${command}" in
-  "" | "-h" | "--help" )
-    echo -e "$(scalaenv-version)\n$(scalaenv-help)" >& 2
+  "" )
+    echo -e "$(scalaenv---version)\n$(scalaenv-help)" >& 2 | abort
     ;;
-  "-v" )
+  "-h" | "--help" )
+    exec scalaenv-help
+    ;;
+  "-v" | "--version" )
     exec scalaenv---version
     ;;
   * )
     command_path="$(command -v "scalaenv-${command}" || true)"
-    if [ -z "${command_path}" ]; then
-      echo "scalaenv: no such sub-command \"${command}\"" >& 2
-      exit 1
-    fi
+    [ -n "$command_path" ] || abort "no such command \`$command\`"
+
     shift 1
-    exec "${command_path}" "${@}"
+    if [ "$1" = --help ]; then
+      if [[ "$command" == "sh-"* ]]; then
+        echo "scalaenv help \"$command\""
+      else
+        exec scalaenv-help "$command"
+      fi
+    else
+      exec "$command_path" "$@"
+    fi
     ;;
 esac
 

From 2f6d3775809fdb31b693e2374213b9d1e9b84759 Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Tue, 15 Aug 2017 21:02:04 +0900
Subject: [PATCH 15/24] Fix the comment for `scalaenv-uninstall`

---
 plugins/scala-install/bin/scalaenv-uninstall | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/scala-install/bin/scalaenv-uninstall b/plugins/scala-install/bin/scalaenv-uninstall
index 1d9ac47..5785081 100755
--- a/plugins/scala-install/bin/scalaenv-uninstall
+++ b/plugins/scala-install/bin/scalaenv-uninstall
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 #
-# Summary: Uninstall a specific Scala version
+# Summary: Uninstall a specific Scala/Dotty version
 #
 # Usage: scalaenv uninstall [-f|--force] <version>
 #

From 3a8f4ea150dcdedb53e2b22fad822f6104b98f0a Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Tue, 15 Aug 2017 21:21:26 +0900
Subject: [PATCH 16/24] Fix the behavior of outputing usage

---
 libexec/scalaenv | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libexec/scalaenv b/libexec/scalaenv
index e9be6e4..9697b57 100755
--- a/libexec/scalaenv
+++ b/libexec/scalaenv
@@ -95,7 +95,9 @@ shopt -u nullglob
 command="${1}"
 case "${command}" in
   "" )
-    echo -e "$(scalaenv---version)\n$(scalaenv-help)" >& 2 | abort
+    { scalaenv---version
+      scalaenv-help
+    } | abort
     ;;
   "-h" | "--help" )
     exec scalaenv-help

From 902e8f03a14a9c995787536f1f9245c02627f906 Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Wed, 16 Aug 2017 06:46:53 +0900
Subject: [PATCH 17/24] Add completions for scalaenv-install

---
 plugins/scala-install/bin/scalaenv-install | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/plugins/scala-install/bin/scalaenv-install b/plugins/scala-install/bin/scalaenv-install
index 87f9572..e7d1c5e 100755
--- a/plugins/scala-install/bin/scalaenv-install
+++ b/plugins/scala-install/bin/scalaenv-install
@@ -25,6 +25,15 @@ if [ -z "${READLINK}" ]; then
   exit 1
 fi
 
+# Provide scalaenv completions
+if [ "$1" = "--complete" ]; then
+  echo --list
+  echo --force
+  echo --help
+  echo --version
+  exit 1
+fi
+
 usage () {
   scalaenv-help install 2>/dev/null
   [ -z "$1" ] || exit "$1"
@@ -48,7 +57,6 @@ abs_dirname() {
   cd "${cwd}"
 }
 
-
 unset FORCE
 unset VERSION
 

From 42028f4c685341ad82716ddd691ea8e47c565c5d Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Wed, 16 Aug 2017 08:57:40 +0900
Subject: [PATCH 18/24] Implement scala-build

---
 plugins/scala-install/bin/scala-build | 136 ++++++++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100755 plugins/scala-install/bin/scala-build

diff --git a/plugins/scala-install/bin/scala-build b/plugins/scala-install/bin/scala-build
new file mode 100755
index 0000000..b4faed5
--- /dev/null
+++ b/plugins/scala-install/bin/scala-build
@@ -0,0 +1,136 @@
+#!/usr/bin/env bash
+#
+# Usage: scala-build [-kpv] <definition> <prefix>
+#        scala-build --definitions
+#        scala-build --version
+#
+#   --definitions    List all built-in definitions
+#   --version        Show version of python-build
+#   -g/--debug       Build a debug version
+#
+
+SCALA_BUILD_VERSION="20170816"
+
+OLDIFS="$IFS"
+
+set -E
+exec 3<&2 # preserve original stderr at fd 3
+
+SCALA_BUILD_DEFINITIONS="${SCALAENV_ROOT}"/plugins/scala-install/share
+
+set -E
+exec 3<&2 # preserve original stderr at fd 3
+
+lib() {
+  parse_options() {
+    OPTIONS=()
+    ARGUMENTS=()
+    local arg option index
+
+    for arg in "$@"; do
+      if [ "${arg:0:1}" = "-" ]; then
+        if [ "${arg:1:1}" = "-" ]; then
+          OPTIONS[${#OPTIONS[*]}]="${arg:2}"
+        else
+          index=1
+          while option="${arg:$index:1}"; do
+            [ -n "$option" ] || break
+            OPTIONS[${#OPTIONS[*]}]="$option"
+            index=$(($index+1))
+          done
+        fi
+      else
+        ARGUMENTS[${#ARGUMENTS[*]}]="$arg"
+      fi
+    done
+  }
+
+  if [ "$1" == "--$FUNCNAME" ]; then
+    declare -f "$FUNCNAME"
+    echo "$FUNCNAME \"\$1\";"
+    exit
+  fi
+}
+lib "$1"
+
+version() {
+  local git_revision
+  # Read the revision from git if the remote points to "scala-build" repository
+  if GIT_DIR="$SCALA_BUILD_INSTALL_PREFIX/../../.git" git remote -v 2>/dev/null | grep -q /pyenv; then
+    git_revision="$(GIT_DIR="$SCALA_BUILD_INSTALL_PREFIX/../../.git" git describe --tags HEAD 2>/dev/null || true)"
+    git_revision="${git_revision#v}"
+  fi
+  echo "scala-build ${git_revision:-$SCALA_BUILD_VERSION}"
+}
+
+usage() {
+  sed -ne '/^#/!q;s/.\{1,2\}//;1,2d;p' < "$0"
+  [ -z "$1" ] || exit "$1"
+}
+
+resolve_link() {
+  $(type -p greadlink readlink | head -1) "$1"
+}
+
+abs_dirname() {
+  local cwd="$(pwd)"
+  local path="$1"
+
+  while [ -n "$path" ]; do
+    cd "${path%/*}"
+    local name="${path##*/}"
+    path="$(resolve_link "$name" || true)"
+  done
+
+  pwd
+  cd "$cwd"
+}
+
+list_definitions() {
+  { [ -d "$SCALA_BUILD_DEFINITIONS" ] && \
+      find "$SCALA_BUILD_DEFINITIONS" -maxdepth 1 -type f -print0 | xargs -0 -n 1 basename 2>/dev/null
+  } | sort_versions | uniq
+}
+
+sort_versions() {
+  sed 'h; s/[+-]/./g; s/.p\([[:digit:]]\)/.z\1/; s/$/.z/; G; s/\n/ /' | \
+    LC_ALL=C sort -t. -k 1,1 -k 2,2n -k 3,3n -k 4,4n -k 5,5n | awk '{print $2}'
+}
+
+parse_options "$@"
+for option in "${OPTIONS[@]}"; do
+  case "$option" in
+  "h" | "help" )
+    version
+    echo
+    usage 0
+    ;;
+  "definitions" )
+    list_definitions
+    exit 0
+    ;;
+  "version" )
+    version
+    exit 0
+    ;;
+  esac
+done
+
+[ "${#ARGUMENTS[@]}" -eq 2 ] || usage 1 >&2
+
+DEFINITION_PATH="${ARGUMENTS[0]}"
+if [ -z "$DEFINITION_PATH" ]; then
+  usage 1 >&2
+elif [ ! -f "$DEFINITION_PATH" ]; then
+  for DEFINITION_DIR in "${SCALA_BUILD_DEFINITIONS[@]}"; do
+    if [ -f "${DEFINITION_DIR}/${DEFINITION_PATH}" ]; then
+      DEFINITION_PATH="${DEFINITION_DIR}/${DEFINITION_PATH}"
+      break
+    fi
+  done
+
+  if [ ! -f "$DEFINITION_PATH" ]; then
+    echo "scala-build: definition not found: ${DEFINITION_PATH}" >&2
+    exit 2
+  fi
+fi

From 4ca9bc159223daecf27ac1063718df1d97fd8f4c Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Wed, 16 Aug 2017 08:57:55 +0900
Subject: [PATCH 19/24] Enable completion for installation of available
 versions

---
 plugins/scala-install/bin/scalaenv-install | 95 ++++++++++++----------
 1 file changed, 52 insertions(+), 43 deletions(-)

diff --git a/plugins/scala-install/bin/scalaenv-install b/plugins/scala-install/bin/scalaenv-install
index e7d1c5e..958e1ed 100755
--- a/plugins/scala-install/bin/scalaenv-install
+++ b/plugins/scala-install/bin/scalaenv-install
@@ -14,6 +14,8 @@
 set -e
 test -n "${SCALAENV_DEBUG}" && set -x
 
+export SCALA_BUILD_DEFINITIONS="${SCALAENV_ROOT}/plugins/scala-install/share"
+
 if [ -z ${SCALAENV_ROOT} ]; then
   echo "\${SCALAENV_ROOT} is not defined." >& 2
   exit 1
@@ -31,72 +33,79 @@ if [ "$1" = "--complete" ]; then
   echo --force
   echo --help
   echo --version
-  exit 1
+  exec scala-build --definitions
 fi
 
-usage () {
-  scalaenv-help install 2>/dev/null
-  [ -z "$1" ] || exit "$1"
-}
+# Load shared library functions
+eval "$(scala-build --lib)"
 
 resolve_link() {
-  ${READLINK} "${1}"
+  $(type -p greadlink readlink | head -1) "$1"
 }
 
 abs_dirname() {
   local cwd="$(pwd)"
-  local path="${1}"
+  local path="$1"
 
-  while [ -n "${path}" ]; do
+  while [ -n "$path" ]; do
     cd "${path%/*}"
     local name="${path##*/}"
-    path="$(resolve_link "${name}" || true)"
+    path="$(resolve_link "$name" || true)"
   done
 
   pwd
-  cd "${cwd}"
+  cd "$cwd"
+}
+
+usage () {
+  scalaenv-help install 2>/dev/null
+  [ -z "$1" ] || exit "$1"
+}
+
+definitions() {
+  local query="$1"
+  scala-build --definitions | $(type -p ggrep grep | head -1) -F "$query" || true
+}
+
+indent() {
+  sed 's/^/  /'
 }
 
 unset FORCE
 unset VERSION
 
-for OPT in "$@"; do
-  case "$OPT" in
-    '-h' | '--help' )
-      usage 0
-      ;;
-    '-l' | '--list' )
-      echo "All available versions:"
-      ls -1 $(abs_dirname $0)/../share
-      exit 0
-      ;;
-    '-f' | '--force' )
-      FORCE=true
-      shift 1
-      ;;
-    '-' | '--' )
-      shift 1
-      param+=( "$@" )
-      break
-      ;;
-    -*)
-      echo "$(basename $0): illegal option -- '$(echo $1 | sed 's/^-*//')'" 1>&2
-      exit 1
-      ;;
-    *)
-      if [[ ! -z "$1" ]] && [[ ! "$1" =~ ^-+ ]]; then
-        param+=( "$1" )
-        shift 1
-      fi
-      ;;
+parse_options "$@"
+for option in "${OPTIONS[@]}"; do
+  case "$option" in
+  "h" | "help" )
+    usage 0
+    ;;
+  "l" | "list" )
+    echo "Available versions:"
+    definitions | indent
+    exit
+    ;;
+  "f" | "force" )
+    FORCE=true
+    ;;
+  "version" )
+    exec scala-build --version
+    ;;
+  * )
+    usage 1 >&2
+    ;;
   esac
 done
 
-if [ -z $param ]; then
-  usage 1
-fi
+[ "${#ARGUMENTS[@]}" -le 1 ] || usage 1 >&2
+
+DEFINITION="${ARGUMENTS[0]}"
+[ -n "$DEFINITION" ] || DEFINITION="$(pyenv-local 2>/dev/null || true)"
+[ -n "$DEFINITION" ] || usage 1 >&2
+
+[ -n "$VERSION" ] || VERSION="${DEFINITION##*/}"
+[ -n "$DEBUG" ] && VERSION="${VERSION}-debug"
 
-VERSION=${param}
 SHA1SUM=$(type -p sha1sum shasum | head -1)
 
 if [ -z "${SHA1SUM}" ]; then

From 8f662c6ce3131ca710535689650ecba860454e26 Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Wed, 16 Aug 2017 09:36:50 +0900
Subject: [PATCH 20/24] Fix scalaenv-versions

---
 libexec/scalaenv-versions | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/libexec/scalaenv-versions b/libexec/scalaenv-versions
index e81a909..cf83605 100755
--- a/libexec/scalaenv-versions
+++ b/libexec/scalaenv-versions
@@ -7,7 +7,22 @@
 set -e
 test -n "${SCALAENV_DEBUG}" && set -x
 
-if [ "${1}" = "--bare" ]; then
+unset bare
+# Provide scalaenv completions
+for arg; do
+  case "$arg" in
+  --complete )
+    echo --bare
+    exit ;;
+  --bare ) bare=1 ;;
+  * )
+    scalaenv-help --usage versions >&2
+    exit 1
+    ;;
+  esac
+done
+
+if [ -n "$bare" ]; then
   hit_prefix=""
   miss_prefix=""
   current_version=""
@@ -37,4 +52,3 @@ for path in "${SCALAENV_ROOT}/versions/"*; do
     print_version "${path##*/}"
   fi
 done
-

From bc07dbb1fdde4dc7471f20176e4e58db13c4a045 Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Wed, 16 Aug 2017 09:37:09 +0900
Subject: [PATCH 21/24] Add completions for scalaenv-uninstall

---
 plugins/scala-install/bin/scalaenv-uninstall | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/plugins/scala-install/bin/scalaenv-uninstall b/plugins/scala-install/bin/scalaenv-uninstall
index 5785081..db95617 100755
--- a/plugins/scala-install/bin/scalaenv-uninstall
+++ b/plugins/scala-install/bin/scalaenv-uninstall
@@ -10,8 +10,10 @@
 #
 set -e
 
+# Provide scalaenv completions
 if [ "$1" = "--complete" ]; then
   echo --force
+  echo --help
   exec scalaenv versions --bare
 fi
 
@@ -44,11 +46,11 @@ PREFIX="${SCALAENV_ROOT}/versions/${VERSION_NAME}"
 
 if [ -z "$FORCE" ]; then
   if [ ! -d "$PREFIX" ]; then
-    echo "scalaenv: version \`$VERSION_NAME\` not installed" >&2
+    echo "scalaenv: version \`$VERSION_NAME' not installed" >&2
     exit 1
   fi
 
-  read -p "scalaenv: remove $PREFIX? "
+  read -p "scalaenv: remove $PREFIX? [yN] "
   case "$REPLY" in
   y* | Y* ) ;;
   * ) exit 1 ;;

From 4a60dadf4f2b516c2a347e119c161921ad40e17a Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Wed, 16 Aug 2017 09:57:50 +0900
Subject: [PATCH 22/24] Fix typo

---
 libexec/scalaenv-init | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libexec/scalaenv-init b/libexec/scalaenv-init
index 93375e2..92c148d 100755
--- a/libexec/scalaenv-init
+++ b/libexec/scalaenv-init
@@ -125,7 +125,7 @@ EOS
   ;;
   ksh )
   cat <<EOS
-function rbenv {
+function scalaenv {
   typeset command
 EOS
   ;;

From eaf03dfd6fb4f3fc9bf1475fb673befaa338f005 Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Wed, 16 Aug 2017 21:22:19 +0900
Subject: [PATCH 23/24] Fix README.md

---
 README.md | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index d40a95d..08fd295 100644
--- a/README.md
+++ b/README.md
@@ -53,10 +53,10 @@ Please refer to [**sbtenv**](https://github.com/sbtenv/sbtenv) in the case of us
     ~~~ sh
     $ scalaenv install -l
     All available versions:
-    scala-2.10.1
-    scala-2.10.2
-    scala-2.10.3
-    ...
+      scala-2.10.1
+      scala-2.10.2
+      scala-2.10.3
+      ...
     ~~~
 
     If want to install manually, please download scala archive and extract into `~/.scalaenv/versions/`.
@@ -66,9 +66,9 @@ Please refer to [**sbtenv**](https://github.com/sbtenv/sbtenv) in the case of us
     $ tar xf scala-2.10.3.tgz -C ~/.scalaenv/versions/
     ~~~
 
-#### Homebrew on Mac OSX
+#### Homebrew on macOS
 
-As an alternative to installation via GitHub checkout, you can install scalaenv using the [Homebrew package manager](http://brew.sh) on Mac OSX.
+As an alternative to installation via GitHub checkout, you can install scalaenv using the [Homebrew package manager](http://brew.sh) on macOS.
 
 ~~~ sh
 $ brew update

From 72c885b63ac87e48d4f3f62bef44b9da35912ca1 Mon Sep 17 00:00:00 2001
From: Yusuke Izawa <yuizalp@gmail.com>
Date: Thu, 17 Aug 2017 19:10:43 +0900
Subject: [PATCH 24/24] 0.0.15

---
 README.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/README.md b/README.md
index 08fd295..8e26ec4 100644
--- a/README.md
+++ b/README.md
@@ -89,6 +89,15 @@ $ brew upgrade --fetch-HEAD scalaenv
 
 ### Version History
 
+**0.0.15** (Aug 17, 2017)
+
+  - Implemented `saclaenv uninstall`
+  - Enhanced `scalaenv install`
+    - Added usage for `scalaenv install`
+    - Added completions for  `scalaenv install`
+    - etc...
+  - Added new scala archives (**2.12.3** and **2.13.0-M2**)
+
 **0.0.14** (Jul 28, 2017)
   * Added **dotty-0.2.0-RC1**
   * Supported for fish shell :tada: