Add bash_completion scripts for adb

Adds rudimentary support for bash_completion using adb. It supports all
the optional arguments for adb, completion of individual commands, and
support for calling into the "shell" function and filename completion
within the shell.

Change-Id: I8e5ca53f3988140dc169a2e353dd92ff0438d6b7
diff --git a/bash_completion/MODULE_LICENSE_APACHE2 b/bash_completion/MODULE_LICENSE_APACHE2
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/bash_completion/MODULE_LICENSE_APACHE2
diff --git a/bash_completion/NOTICE b/bash_completion/NOTICE
new file mode 100644
index 0000000..20da40d
--- /dev/null
+++ b/bash_completion/NOTICE
@@ -0,0 +1,189 @@
+
+   Copyright (c) 2011, The Android Open Source Project
+
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diff --git a/bash_completion/README b/bash_completion/README
new file mode 100644
index 0000000..55461cf
--- /dev/null
+++ b/bash_completion/README
@@ -0,0 +1,13 @@
+This directory contains scripts that are intended to be used with
+Bourne Again SHell (bash)'s programmable completion.
+
+See http://www.gnu.org/s/bash/manual/bash.html#Programmable-Completion for
+more information on programmable completion in bash.
+
+To use the scripts, simply source them into your environment. Example:
+
+   source sdk/bash_completion/adb
+
+or:
+
+   . sdk/bash_completion/adb
diff --git a/bash_completion/adb b/bash_completion/adb
new file mode 100644
index 0000000..d1a4c40
--- /dev/null
+++ b/bash_completion/adb
@@ -0,0 +1,206 @@
+#
+# Copyright 2011, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+_adb() {
+    local where i cur serial
+    COMPREPLY=()
+
+    serial="${ANDROID_SERIAL:-none}"
+    where=OPTIONS
+    for ((i=1; i <= COMP_CWORD; i++)); do \
+        cur="${COMP_WORDS[i]}"
+        case "${cur}" in
+            -s)
+                where=OPT_SERIAL
+                ;;
+            -p)
+                where=OPT_PATH
+                ;;
+            -*)
+                where=OPTIONS
+                ;;
+            *)
+                if [[ $where == OPT_SERIAL ]]; then \
+                    where=OPT_SERIAL_ARG
+                elif [[ $where == OPT_SERIAL_ARG ]]; then \
+                    serial=${cur}
+                    where=OPTIONS
+                else
+                    where=COMMAND
+                    break
+                fi
+                ;;
+        esac
+    done
+
+    if [[ $where == COMMAND && $i -ge $COMP_CWORD ]]; then \
+        where=OPTIONS
+    fi
+
+    OPTIONS="-d -e -s -p"
+    COMMAND="devices connect disconnect push pull sync shell emu logcat lolcat forward jdwp install uninstall bugreport help version start-server kill-server get-state get-serialno status-window remount reboot reboot-bootloader root usb tcpip"
+
+    case $where in
+        OPTIONS|OPT_SERIAL|OPT_PATH)
+            COMPREPLY=( $(compgen -W "$OPTIONS $COMMAND" -- "$cur") )
+            ;;
+        OPT_SERIAL_ARG)
+            local devices=$(command adb devices '2>' /dev/null | grep -v "List of devices" | awk '{ print $1 }')
+            COMPREPLY=( $(compgen -W "${devices}" -- ${cur}) )
+            ;;
+        COMMAND)
+            if [[ $i -eq $COMP_CWORD ]]; then \
+                COMPREPLY=( $(compgen -W "$COMMAND" -- "$cur") )
+            else \
+                i=$((i+1))
+                case "${cur}" in
+                    shell)
+                        _adb_cmd_shell "$serial" $i
+                        ;;
+                esac
+            fi
+            ;;
+    esac
+
+    return 0
+}
+
+_adb_cmd_shell() {
+    local serial IFS=$'\n' i cur
+    local -a args
+
+    serial=$1
+    i=$2
+
+    cur="${COMP_WORDS[i]}"
+    if [ "$serial" != "none" ]; then \
+        args=(-s $serial)
+    fi
+
+    # There are no filenames we can complete from the filesystem, so disable matching.
+    if [[ $(type -t compopt) = "builtin" ]]; then \
+        compopt +o filenames +o dirnames +o plusdirs
+    fi
+
+    if [[ $i -eq $COMP_CWORD && ${cur:0:1} != "/" ]]; then \
+        paths=$(command adb ${args[@]} shell echo '$'PATH 2> /dev/null | tr -d '\r' | tr : '\n')
+        COMMAND=$(command adb ${args[@]} shell ls $paths '2>' /dev/null | tr -d '\r' | {
+            while read -r tmp; do
+                command=${tmp##*/}
+                printf '%s\n' "$command"
+            done
+        })
+        COMPREPLY=( $(compgen -W "$COMMAND" -- "$cur") )
+        return 0
+    fi
+
+    i=$((i+1))
+    case "$cur" in
+        ls)
+            _adb_shell_ls $serial $i
+            ;;
+        /*)
+            _adb_util_list_files $serial "$cur"
+            ;;
+        *)
+            COMPREPLY=( )
+            ;;
+    esac
+
+    return 0
+}
+
+_adb_shell_ls() {
+    local serial i cur file
+    local -a args
+
+    serial=$1
+    i=$2
+    if [ "$serial" != "none" ]; then \
+        args=(-s $serial)
+    fi
+
+    where=OPTIONS
+    for ((; i <= COMP_CWORD; i++)); do \
+        cur="${COMP_WORDS[i]}"
+        case "${cur}" in
+            -*)
+                where=OPTIONS
+                ;;
+            *)
+                where=FILE
+                break
+                ;;
+        esac
+    done
+
+    file="${COMP_WORDS[COMP_CWORD]}"
+    if [[ ${file} == "" ]]; then \
+        file="/"
+    fi
+
+    case $where in
+        OPTIONS)
+            COMPREPLY=( $(compgen -W "$OPTIONS" -- "$cur") )
+            _adb_util_list_files $serial "$file"
+            ;;
+        FILE)
+            _adb_util_list_files $serial "$file"
+            ;;
+    esac
+
+    return 0
+}
+
+_adb_util_list_files() {
+    local serial dir IFS=$'\n'
+    local -a toks
+    local -a args
+
+    serial="$1"
+    file="$2"
+
+    if [ "$serial" != "none" ]; then \
+        args=(-s $serial)
+    fi
+
+    toks=( ${toks[@]-} $(
+        command adb ${args[@]} shell ls -dF ${file}"*" '2>' /dev/null | tr -d '\r' | {
+            while read -r tmp; do
+                filetype=${tmp%% *}
+                filename=${tmp:${#filetype}+1}
+                if [[ ${filetype:${#filetype}-1:1} == d ]]; then
+                    printf '%s/\n' "$filename"
+                else
+                    printf '%s\n' "$filename"
+                fi
+            done
+        }
+    ))
+
+    # Since we're probably doing file completion here, don't add a space after.
+    if [[ $(type -t compopt) = "builtin" ]]; then \
+        compopt -o nospace
+    fi
+
+    COMPREPLY=( "${COMPREPLY[@]}" "${toks[@]}" )
+}
+
+if [[ $(type -t compopt) = "builtin" ]]; then \
+    complete -F _adb adb
+else \
+    complete -o nospace -F _adb adb
+fi