added bash completions files

Added files that can be used to enable tab-completion in bash
for 'buildbot' and 'buildslave' commands.

master/contrib/README.txt

@@ -47,3 +47,8 @@ css/*.css: alternative HTML stylesheets to make the Waterfall display look
 zsh/_buildbot: zsh tab-completion file for 'buildbot' command. Put it in one
                of the directories appearing in $fpath to enable tab-completion
                in zsh.
+
+bash/buildslave: bash tab-completion file for 'buildbot' command. Source this
+                 file to enable completions in your bash session. This is
+                 typically accomplished by placing the file into the
+                 appropriate 'bash_completion.d' directory.

master/contrib/bash/buildbot

@@ -0,0 +1,59 @@
+#
+# This file installs BASH completions for 'buildbot' command.
+#
+
+_buildbot()
+{
+    local buildbot_subcommands="
+        create-master upgrade-master start stop restart reconfig sighup user
+        sendchange debugclient statuslog statusgui try tryserver checkconfig"
+
+    local cur=${COMP_WORDS[COMP_CWORD]}
+    local subcommand=
+    local subcommand_args=
+    local i=1
+
+    #
+    # 'parse' the command line so far
+    # figure out if we have subcommand specified and any arguments to it
+    #
+
+    # skip global options
+    while [[ "${COMP_WORDS[$i]}" == -* ]];
+    do
+        i=$(($i+1))
+    done
+
+    # save subcommand
+    subcommand=${COMP_WORDS[$i]}
+    i=$(($i+1))
+
+    # skip subcommand options
+    while [[ "${COMP_WORDS[$i]}" == -* ]];
+    do
+        i=$(($i+1))
+    done
+
+    # save subcommand arguments
+    subcommand_args=${COMP_WORDS[@]:$i:${#COMP_WORDS[@]}}
+
+    if [ "$cur" == "$subcommand" ]; then
+        # suggest buildbot subcommands
+        COMPREPLY=( $(compgen -W "$buildbot_subcommands" $cur) )
+    elif [ "$cur" == "$subcommand_args" ]; then
+        # we are at first subcommand argument
+        case $subcommand in
+            # these command take base directory as first argument,
+            # suggest directories
+            upgrade-master|create-master|start|stop|restart|reconfig|sighup)
+                COMPREPLY=( $(compgen -A directory $cur) )
+                ;;
+            # checkconfig takes a filename or directory as first argument
+            checkconfig)
+                COMPREPLY=( $(compgen -A file $cur) )
+                ;;
+        esac
+    fi
+}
+
+complete -F _buildbot buildbot

slave/contrib/README.txt

@@ -4,3 +4,8 @@ buildbot:
 zsh/_buildslave: zsh tab-completion file for 'buildslave' command. Put it in
                  one of the directories appearing in $fpath to enable
                  tab-completion in zsh.
+
+bash/buildslave: bash tab-completion file for 'buildslave' command. Source this
+                 file to enable completions in your bash session. This is
+                 typically accomplished by placing the file into the
+                 appropriate 'bash_completion.d' directory.

slave/contrib/bash/buildslave

@@ -0,0 +1,50 @@
+#
+# This file installs BASH completions for 'buildslave' command.
+#
+
+_buildslave()
+{
+    local buildslave_subcommands="
+        create-slave upgrade-slave start stop restart"
+
+    local cur=${COMP_WORDS[COMP_CWORD]}
+    local subcommand=
+    local subcommand_args=
+    local i=1
+
+    #
+    # 'parse' the command line so far
+    # figure out if we have subcommand specified and any arguments to it
+    #
+
+    # skip global options
+    while [[ "${COMP_WORDS[$i]}" == -* ]];
+    do
+        i=$(($i+1))
+    done
+
+    # save subcommand
+    subcommand=${COMP_WORDS[$i]}
+    i=$(($i+1))
+
+    # skip subcommand options
+    while [[ "${COMP_WORDS[$i]}" == -* ]];
+    do
+        i=$(($i+1))
+    done
+
+    # save subcommand arguments
+    subcommand_args=${COMP_WORDS[@]:$i:${#COMP_WORDS[@]}}
+
+    if [ "$cur" == "$subcommand" ]; then
+        # suggest buildbot subcommands
+        COMPREPLY=( $(compgen -W "$buildslave_subcommands" $cur) )
+    elif [ "$cur" == "$subcommand_args" ]; then
+        # we are at first subcommand argument
+        # all subcommands can have slave base directory as first argument
+        # suggest directories
+	COMPREPLY=( $(compgen -A directory $cur) )
+    fi
+}
+
+complete -F _buildslave buildslave