add bash-it

dot_bash_it/completion/available/invoke.completion.bash

@@ -0,0 +1,54 @@
+# Invoke (pyinvoke.org) tab-completion script to be sourced with Bash shell.
+
+# Copyright (c) 2020 Jeff Forcier.
+# All rights reserved.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+
+#     * Redistributions of source code must retain the above copyright notice,
+#       this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright notice,
+#       this list of conditions and the following disclaimer in the documentation
+#       and/or other materials provided with the distribution.
+
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# https://github.com/pyinvoke/invoke/blob/master/completion/bash
+
+_complete_invoke() {
+    local candidates
+
+    # COMP_WORDS contains the entire command string up til now (including
+    # program name).
+    # We hand it to Invoke so it can figure out the current context: spit back
+    # core options, task names, the current task's options, or some combo.
+    candidates=`invoke --complete -- ${COMP_WORDS[*]}`
+
+    # `compgen -W` takes list of valid options & a partial word & spits back
+    # possible matches. Necessary for any partial word completions (vs
+    # completions performed when no partial words are present).
+    #
+    # $2 is the current word or token being tabbed on, either empty string or a
+    # partial word, and thus wants to be compgen'd to arrive at some subset of
+    # our candidate list which actually matches.
+    #
+    # COMPREPLY is the list of valid completions handed back to `complete`.
+    COMPREPLY=( $(compgen -W "${candidates}" -- $2) )
+}
+
+
+# Tell shell builtin to use the above for completing 'inv'/'invoke':
+# * -F: use given function name to generate completions.
+# * -o default: when function generates no results, use filenames.
+# * positional args: program names to complete for.
+complete -F _complete_invoke -o default invoke inv