From 271c5fe4b4e036a1734d955bc9a3c90468da7f39 Mon Sep 17 00:00:00 2001
From: mtwtkman <punipuniomochi@gmail.com>
Date: Sat, 29 Nov 2014 11:08:17 +0900
Subject: [PATCH] add support for fish-shell

---
 completions/exenv.fish | 22 +++++++++++++++++++++
 libexec/exenv-init     | 43 ++++++++++++++++++++++++++++++++++++++----
 2 files changed, 61 insertions(+), 4 deletions(-)
 create mode 100644 completions/exenv.fish

diff --git a/completions/exenv.fish b/completions/exenv.fish
new file mode 100644
index 0000000..95fdce0
--- /dev/null
+++ b/completions/exenv.fish
@@ -0,0 +1,22 @@
+function __fish_exenv_needs_command
+  set cmd (commandline -opc)
+  if [ (count $cmd) -eq 1 -a $cmd[1] = 'exenv' ]
+    return 0
+  end
+  return 1
+end
+
+function __fish_exenv_using_command
+  set cmd (commandline -opc)
+  if [ (count $cmd) -gt 1 ]
+    if [ $argv[1] = $cmd[2] ]
+      return 0
+    end
+  end
+  return 1
+end
+
+complete -f -c exenv -n '__fish_exenv_needs_command' -a '(exenv commands)'
+for cmd in (exenv commands)
+  complete -f -c exenv -n "__fish_exenv_using_command $cmd" -a "(exenv completions $cmd)"
+end
diff --git a/libexec/exenv-init b/libexec/exenv-init
index 046d1e6..e538978 100755
--- a/libexec/exenv-init
+++ b/libexec/exenv-init
@@ -17,7 +17,7 @@ do
   fi
 done
 
-shell="$1"
+
 if [ -z "$shell" ]; then
   shell="$(basename "$SHELL")"
 fi
@@ -53,6 +53,9 @@ if [ -z "$print" ]; then
   ksh )
     profile='~/.profile'
     ;;
+  fish )
+    profile='~/.config/fish/config.fish'
+    ;;
   * )
     profile='your profile'
     ;;
@@ -61,7 +64,14 @@ if [ -z "$print" ]; then
   { echo "# Load exenv automatically by adding"
     echo "# the following to ${profile}:"
     echo
-    echo 'eval "$(exenv init -)"'
+    case "$shell" in
+    fish )
+      echo 'status --is-interactive; and . (exenv init -|psub)'
+      ;;
+    * )
+      echo 'eval "$(exenv init -)"'
+      ;;
+    esac
     echo
   } >&2
 
@@ -70,10 +80,13 @@ fi
 
 mkdir -p "${EXENV_ROOT}/"{shims,versions}
 
-echo 'export PATH="'${EXENV_ROOT}'/shims:${PATH}"'
-
 case "$shell" in
+fish )
+  echo "setenv PATH '${EXENV_ROOT}/shims' \$PATH"
+  echo ". \"$root/completions/exenv.${shell}\""
+  ;;
 bash | zsh )
+  echo 'export PATH="'${EXENV_ROOT}'/shims:${PATH}"'
   echo "source \"$root/completions/exenv.${shell}\""
   ;;
 esac
@@ -83,6 +96,27 @@ if [ -z "$no_rehash" ]; then
 fi
 
 commands=(`exenv commands --sh`)
+case "$shell" in
+fish )
+  cat <<EOS
+function exenv
+  set command \$argv[1]
+  set -e argv[1]
+
+  switch "\$command"
+  case ${commands[*]}
+    eval (exenv "sh-\$command" \$argv)
+  case '*'
+    command exenv "\$command" \$argv
+  end
+end
+EOS
+  ;;
+* )
+  ;;
+esac
+
+if [ "$shell" != "fish" ]; then
 IFS="|"
 cat <<EOS
 exenv() {
@@ -99,3 +133,4 @@ exenv() {
   esac
 }
 EOS
+fi