[fish] Add new functions and confs for fzf and direnv

fish/.config/fish/conf.d/direnv.fish

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+if type -q direnv
+  function __direnv_export_eval --on-variable PWD
+    status --is-command-substitution; and return
+    eval (direnv export fish)
+  end
+else
+  echo "Install direnv first! Check http://direnv.net" 2>&1
+end

fish/.config/fish/conf.d/fzf.fish

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+set -q FZF_TMUX_HEIGHT; or set -U FZF_TMUX_HEIGHT "40%"
+set -q FZF_DEFAULT_OPTS; or set -U FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT"
+set -q FZF_LEGACY_KEYBINDINGS; or set -U FZF_LEGACY_KEYBINDINGS 1
+set -q FZF_DISABLE_KEYBINDINGS; or set -U FZF_DISABLE_KEYBINDINGS 0
+set -q FZF_PREVIEW_FILE_CMD; or set -U FZF_PREVIEW_FILE_CMD "head -n 10"
+set -q FZF_PREVIEW_DIR_CMD; or set -U FZF_PREVIEW_DIR_CMD "ls"
+
+if test "$FZF_DISABLE_KEYBINDINGS" -ne 1
+    if test "$FZF_LEGACY_KEYBINDINGS" -eq 1
+        bind \ct '__fzf_find_file'
+        bind \cr '__fzf_reverse_isearch'
+        bind \ec '__fzf_cd'
+        bind \eC '__fzf_cd --hidden'
+        bind \cg '__fzf_open'
+        bind \co '__fzf_open --editor'
+
+        if ! test "$fish_key_bindings" = fish_default_key_bindings
+            bind -M insert \ct '__fzf_find_file'
+            bind -M insert \cr '__fzf_reverse_isearch'
+            bind -M insert \ec '__fzf_cd'
+            bind -M insert \eC '__fzf_cd --hidden'
+            bind -M insert \cg '__fzf_open'
+            bind -M insert \co '__fzf_open --editor'
+        end
+    else
+        bind \co '__fzf_find_file'
+        bind \cr '__fzf_reverse_isearch'
+        bind \ec '__fzf_cd'
+        bind \eC '__fzf_cd --hidden'
+        bind \eO '__fzf_open'
+        bind \eo '__fzf_open --editor'
+
+        if ! test "$fish_key_bindings" = fish_default_key_bindings
+            bind -M insert \co '__fzf_find_file'
+            bind -M insert \cr '__fzf_reverse_isearch'
+            bind -M insert \ec '__fzf_cd'
+            bind -M insert \eC '__fzf_cd --hidden'
+            bind -M insert \eO '__fzf_open'
+            bind -M insert \eo '__fzf_open --editor'
+        end
+    end
+
+    if not bind --user \t >/dev/null 2>/dev/null
+        if set -q FZF_COMPLETE
+            bind \t '__fzf_complete'
+            if ! test "$fish_key_bindings" = fish_default_key_bindings
+                bind -M insert \t '__fzf_complete'
+            end
+        end
+    end
+end
+
+function _fzf_uninstall -e fzf_uninstall
+    bind --user \
+        | string replace --filter --regex -- "bind (.+)( '?__fzf.*)" 'bind -e $1' \
+        | source
+
+    set --names \
+        | string replace --filter --regex '(^FZF)' 'set --erase $1' \
+        | source
+
+    functions --erase _fzf_uninstall
+end

fish/.config/fish/functions/sshuttle-cloud51.fish

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+function sshuttle-cloud51
+sshuttle --python python3.6 --remote bastion.cloud51.15five.com:155 10.51.0.0/16 --verbose
+end