Add autojump

dotfiles/fish/.config/fish/functions/autojump.fish

@@ -0,0 +1,112 @@
+set -gx AUTOJUMP_SOURCED 1
+
+# set user installation path
+if test -d ~/.autojump
+    set -x PATH ~/.autojump/bin $PATH
+end
+
+# Set ostype, if not set
+if not set -q OSTYPE
+    set -gx OSTYPE (bash -c 'echo ${OSTYPE}')
+end
+
+
+# enable tab completion
+complete -x -c j -a '(autojump --complete (commandline -t))'
+
+
+# set error file location
+if test (uname) = "Darwin"
+    set -gx AUTOJUMP_ERROR_PATH ~/Library/autojump/errors.log
+else if test -d "$XDG_DATA_HOME"
+    set -gx AUTOJUMP_ERROR_PATH $XDG_DATA_HOME/autojump/errors.log
+else
+    set -gx AUTOJUMP_ERROR_PATH ~/.local/share/autojump/errors.log
+end
+
+if test ! -d (dirname $AUTOJUMP_ERROR_PATH)
+    mkdir -p (dirname $AUTOJUMP_ERROR_PATH)
+end
+
+
+# change pwd hook
+function __aj_add --on-variable PWD
+    status --is-command-substitution; and return
+    autojump --add (pwd) >/dev/null 2>>$AUTOJUMP_ERROR_PATH &
+end
+
+
+# misc helper functions
+function __aj_err
+    # TODO(ting|#247): set error file location
+    echo -e $argv 1>&2; false
+end
+
+# default autojump command
+function j
+    switch "$argv"
+        case '-*' '--*'
+            autojump $argv
+        case '*'
+            set -l output (autojump $argv)
+            # Check for . and attempt a regular cd
+            if [ $output = "." ]
+                cd $argv
+            else
+                if test -d "$output"
+                    set_color red
+                    echo $output
+                    set_color normal
+                    cd $output
+                else
+                    __aj_err "autojump: directory '"$argv"' not found"
+                    __aj_err "\n$output\n"
+                    __aj_err "Try `autojump --help` for more information."
+                end
+            end
+    end
+end
+
+
+# jump to child directory (subdirectory of current path)
+function jc
+    switch "$argv"
+        case '-*'
+            j $argv
+        case '*'
+            j (pwd) $argv
+    end
+end
+
+
+# open autojump results in file browser
+function jo
+    set -l output (autojump $argv)
+    if test -d "$output"
+        switch $OSTYPE
+            case 'linux*'
+                xdg-open (autojump $argv)
+            case 'darwin*'
+                open (autojump $argv)
+            case cygwin
+                cygstart "" (cygpath -w -a (pwd))
+            case '*'
+                __aj_err "Unknown operating system: \"$OSTYPE\""
+        end
+    else
+        __aj_err "autojump: directory '"$argv"' not found"
+        __aj_err "\n$output\n"
+        __aj_err "Try `autojump --help` for more information."
+    end
+end
+
+
+# open autojump results (child directory) in file browser
+function jco
+    switch "$argv"
+        case '-*'
+            j $argv
+        case '*'
+            jo (pwd) $argv
+    end
+end