add hg and python

1 files changed, 532 insertions, 0 deletions

diff --git a/sys/src/cmd/hg/contrib/bash_completion b/sys/src/cmd/hg/contrib/bash_completion
new file mode 100644
index 000000000..28f1d0b41
--- /dev/null
+++ b/sys/src/cmd/hg/contrib/bash_completion
@@ -0,0 +1,532 @@
+# bash completion for the Mercurial distributed SCM
+
+# Docs:
+#
+# If you source this file from your .bashrc, bash should be able to
+# complete a command line that uses hg with all the available commands
+# and options and sometimes even arguments.
+#
+# Mercurial allows you to define additional commands through extensions.
+# Bash should be able to automatically figure out the name of these new
+# commands and their options.  See below for how to define _hg_opt_foo
+# and _hg_cmd_foo functions to fine-tune the completion for option and
+# non-option arguments, respectively.
+#
+#
+# Notes about completion for specific commands:
+#
+# - the completion function for the email command from the patchbomb
+#   extension will try to call _hg_emails to get a list of e-mail
+#   addresses.  It's up to the user to define this function.  For
+#   example, put the addresses of the lists that you usually patchbomb
+#   in ~/.patchbomb-to and the addresses that you usually use to send
+#   the patchbombs in ~/.patchbomb-from and use something like this:
+#
+#      _hg_emails()
+#      {
+#          if [ -r ~/.patchbomb-$1 ]; then
+#              cat ~/.patchbomb-$1
+#          fi
+#      }
+#
+#
+# Writing completion functions for additional commands:
+#
+# If it exists, the function _hg_cmd_foo will be called without
+# arguments to generate the completion candidates for the hg command
+# "foo".  If the command receives some arguments that aren't options
+# even though they start with a "-", you can define a function called
+# _hg_opt_foo to generate the completion candidates.  If _hg_opt_foo
+# doesn't return 0, regular completion for options is attempted.
+#
+# In addition to the regular completion variables provided by bash,
+# the following variables are also set:
+# - $hg - the hg program being used (e.g. /usr/bin/hg)
+# - $cmd - the name of the hg command being completed
+# - $cmd_index - the index of $cmd in $COMP_WORDS
+# - $cur - the current argument being completed
+# - $prev - the argument before $cur
+# - $global_args - "|"-separated list of global options that accept
+#                  an argument (e.g. '--cwd|-R|--repository')
+# - $canonical - 1 if we canonicalized $cmd before calling the function
+#                0 otherwise
+#
+
+shopt -s extglob
+
+_hg_commands()
+{
+    local commands
+    commands="$("$hg" debugcomplete "$cur" 2>/dev/null)" || commands=""
+    COMPREPLY=(${COMPREPLY[@]:-} $(compgen -W '$commands' -- "$cur"))
+}
+
+_hg_paths()
+{
+    local paths="$("$hg" paths 2>/dev/null | sed -e 's/ = .*$//')"
+    COMPREPLY=(${COMPREPLY[@]:-} $(compgen -W '$paths' -- "$cur"))
+}
+
+_hg_repos()
+{
+    local i
+    for i in $(compgen -d -- "$cur"); do
+	test ! -d "$i"/.hg || COMPREPLY=(${COMPREPLY[@]:-} "$i")
+    done
+}
+
+_hg_status()
+{
+    local files="$("$hg" status -n$1 . 2>/dev/null)"
+    local IFS=$'\n'
+    COMPREPLY=(${COMPREPLY[@]:-} $(compgen -W '$files' -- "$cur"))
+}
+
+_hg_tags()
+{
+    local tags="$("$hg" tags -q 2>/dev/null)"
+    local IFS=$'\n'
+    COMPREPLY=(${COMPREPLY[@]:-} $(compgen -W '$tags' -- "$cur"))
+}
+
+_hg_branches()
+{
+    local branches="$("$hg" branches -q 2>/dev/null)"
+    local IFS=$'\n'
+    COMPREPLY=(${COMPREPLY[@]:-} $(compgen -W '$branches' -- "$cur"))
+}
+
+# this is "kind of" ugly...
+_hg_count_non_option()
+{
+    local i count=0
+    local filters="$1"
+
+    for ((i=1; $i<=$COMP_CWORD; i++)); do
+	if [[ "${COMP_WORDS[i]}" != -* ]]; then
+	    if [[ ${COMP_WORDS[i-1]} == @($filters|$global_args) ]]; then
+		continue
+	    fi
+	    count=$(($count + 1))
+	fi
+    done
+
+    echo $(($count - 1))
+}
+
+_hg()
+{
+    local cur prev cmd cmd_index opts i
+    # global options that receive an argument
+    local global_args='--cwd|-R|--repository'
+    local hg="$1"
+    local canonical=0
+
+    COMPREPLY=()
+    cur="$2"
+    prev="$3"
+
+    # searching for the command
+    # (first non-option argument that doesn't follow a global option that
+    #  receives an argument)
+    for ((i=1; $i<=$COMP_CWORD; i++)); do
+	if [[ ${COMP_WORDS[i]} != -* ]]; then
+	    if [[ ${COMP_WORDS[i-1]} != @($global_args) ]]; then
+		cmd="${COMP_WORDS[i]}"
+		cmd_index=$i
+		break
+	    fi
+	fi
+    done
+
+    if [[ "$cur" == -* ]]; then
+	if [ "$(type -t "_hg_opt_$cmd")" = function ] && "_hg_opt_$cmd"; then
+	    return
+	fi
+
+	opts=$("$hg" debugcomplete --options "$cmd" 2>/dev/null)
+
+	COMPREPLY=(${COMPREPLY[@]:-} $(compgen -W '$opts' -- "$cur"))
+	return
+    fi
+
+    # global options
+    case "$prev" in
+	-R|--repository)
+	    _hg_paths
+	    _hg_repos
+	    return
+	;;
+	--cwd)
+	    # Stick with default bash completion
+	    return
+	;;
+    esac
+
+    if [ -z "$cmd" ] || [ $COMP_CWORD -eq $i ]; then
+	_hg_commands
+	return
+    fi
+
+    # try to generate completion candidates for whatever command the user typed
+    local help
+    if _hg_command_specific; then
+	return
+    fi
+
+    # canonicalize the command name and try again
+    help=$("$hg" help "$cmd" 2>/dev/null)
+    if [ $? -ne 0 ]; then
+	# Probably either the command doesn't exist or it's ambiguous
+	return
+    fi
+    cmd=${help#hg }
+    cmd=${cmd%%[$' \n']*}
+    canonical=1
+    _hg_command_specific
+}
+
+_hg_command_specific()
+{
+    if [ "$(type -t "_hg_cmd_$cmd")" = function ]; then
+	"_hg_cmd_$cmd"
+	return 0
+    fi
+
+    if [ "$cmd" != status ] && [ "$prev" = -r ] || [ "$prev" == --rev ]; then
+	if [ $canonical = 1 ]; then
+	    _hg_tags
+	    _hg_branches
+	    return 0
+	elif [[ status != "$cmd"* ]]; then
+	    _hg_tags
+	    _hg_branches
+	    return 0
+	else
+	    return 1
+	fi
+    fi
+
+    case "$cmd" in
+	help)
+	    _hg_commands
+	;;
+	export)
+	    if _hg_ext_mq_patchlist qapplied && [ "${COMPREPLY[*]}" ]; then
+		return 0
+	    fi
+	    _hg_tags
+	    _hg_branches
+	;;
+	manifest|update)
+	    _hg_tags
+	    _hg_branches
+	;;
+	pull|push|outgoing|incoming)
+	    _hg_paths
+	    _hg_repos
+	;;
+	paths)
+	    _hg_paths
+	;;
+	add)
+	    _hg_status "u"
+	;;
+	merge)
+	    _hg_tags
+	    _hg_branches
+	;;
+	commit)
+	    _hg_status "mar"
+	;;
+	remove)
+	    _hg_status "d"
+	;;
+	forget)
+	    _hg_status "a"
+	;;
+	diff)
+	    _hg_status "mar"
+	;;
+	revert)
+	    _hg_status "mard"
+	;;
+	clone)
+	    local count=$(_hg_count_non_option)
+	    if [ $count = 1 ]; then
+		_hg_paths
+	    fi
+	    _hg_repos
+	;;
+	debugindex|debugindexdot)
+	    COMPREPLY=(${COMPREPLY[@]:-} $(compgen -f -X "!*.i" -- "$cur"))
+	;;
+	debugdata)
+	    COMPREPLY=(${COMPREPLY[@]:-} $(compgen -f -X "!*.d" -- "$cur"))
+	;;
+	*)
+	    return 1
+	;;
+    esac
+
+    return 0
+}
+
+complete -o bashdefault -o default -F _hg hg 2>/dev/null \
+    || complete -o default -F _hg hg
+
+
+# Completion for commands provided by extensions
+
+# mq
+_hg_ext_mq_patchlist()
+{
+    local patches
+    patches=$("$hg" $1 2>/dev/null)
+    if [ $? -eq 0 ] && [ "$patches" ]; then
+	COMPREPLY=(${COMPREPLY[@]:-} $(compgen -W '$patches' -- "$cur"))
+	return 0
+    fi
+    return 1
+}
+
+_hg_ext_mq_queues()
+{
+    local root=$("$hg" root 2>/dev/null)
+    local n
+    for n in $(cd "$root"/.hg && compgen -d -- "$cur"); do
+	# I think we're usually not interested in the regular "patches" queue
+	# so just filter it.
+	if [ "$n" != patches ] && [ -e "$root/.hg/$n/series" ]; then
+	    COMPREPLY=(${COMPREPLY[@]:-} "$n")
+	fi
+    done
+}
+
+_hg_cmd_qpop()
+{
+    if [[ "$prev" = @(-n|--name) ]]; then
+	_hg_ext_mq_queues
+	return
+    fi
+    _hg_ext_mq_patchlist qapplied
+}
+
+_hg_cmd_qpush()
+{
+    if [[ "$prev" = @(-n|--name) ]]; then
+	_hg_ext_mq_queues
+	return
+    fi
+    _hg_ext_mq_patchlist qunapplied
+}
+
+_hg_cmd_qgoto()
+{
+    if [[ "$prev" = @(-n|--name) ]]; then
+	_hg_ext_mq_queues
+	return
+    fi
+    _hg_ext_mq_patchlist qseries
+}
+
+_hg_cmd_qdelete()
+{
+    local qcmd=qunapplied
+    if [[ "$prev" = @(-r|--rev) ]]; then
+	qcmd=qapplied
+    fi
+    _hg_ext_mq_patchlist $qcmd
+}
+
+_hg_cmd_qsave()
+{
+    if [[ "$prev" = @(-n|--name) ]]; then
+	_hg_ext_mq_queues
+	return
+    fi
+}
+
+_hg_cmd_strip()
+{
+    _hg_tags
+    _hg_branches
+}
+
+_hg_cmd_qcommit()
+{
+    local root=$("$hg" root 2>/dev/null)
+    # this is run in a sub-shell, so we can't use _hg_status
+    local files=$(cd "$root/.hg/patches" 2>/dev/null &&
+                  "$hg" status -nmar 2>/dev/null)
+    COMPREPLY=(${COMPREPLY[@]:-} $(compgen -W '$files' -- "$cur"))
+}
+
+_hg_cmd_qfold()
+{
+    _hg_ext_mq_patchlist qunapplied
+}
+
+_hg_cmd_qrename()
+{
+    _hg_ext_mq_patchlist qseries
+}
+
+_hg_cmd_qheader()
+{
+    _hg_ext_mq_patchlist qseries
+}
+
+_hg_cmd_qclone()
+{
+    local count=$(_hg_count_non_option)
+    if [ $count = 1 ]; then
+	_hg_paths
+    fi
+    _hg_repos
+}
+
+_hg_ext_mq_guards()
+{
+    "$hg" qselect --series 2>/dev/null | sed -e 's/^.//'
+}
+
+_hg_cmd_qselect()
+{
+    local guards=$(_hg_ext_mq_guards)
+    COMPREPLY=(${COMPREPLY[@]:-} $(compgen -W '$guards' -- "$cur"))
+}
+
+_hg_cmd_qguard()
+{
+    local prefix=''
+
+    if [[ "$cur" == +* ]]; then
+	prefix=+
+    elif [[ "$cur" == -* ]]; then
+	prefix=-
+    fi
+    local ncur=${cur#[-+]}
+
+    if ! [ "$prefix" ]; then
+	_hg_ext_mq_patchlist qseries
+	return
+    fi
+
+    local guards=$(_hg_ext_mq_guards)
+    COMPREPLY=(${COMPREPLY[@]:-} $(compgen -P $prefix -W '$guards' -- "$ncur"))
+}
+
+_hg_opt_qguard()
+{
+    local i
+    for ((i=cmd_index+1; i<=COMP_CWORD; i++)); do
+	if [[ ${COMP_WORDS[i]} != -* ]]; then
+	    if [[ ${COMP_WORDS[i-1]} != @($global_args) ]]; then
+		_hg_cmd_qguard
+		return 0
+	    fi
+	elif [ "${COMP_WORDS[i]}" = -- ]; then
+	    _hg_cmd_qguard
+	    return 0
+	fi
+    done
+    return 1
+}
+
+
+# hbisect
+_hg_cmd_bisect()
+{
+    local i subcmd
+
+    # find the sub-command
+    for ((i=cmd_index+1; i<=COMP_CWORD; i++)); do
+	if [[ ${COMP_WORDS[i]} != -* ]]; then
+	    if [[ ${COMP_WORDS[i-1]} != @($global_args) ]]; then
+		subcmd="${COMP_WORDS[i]}"
+		break
+	    fi
+	fi
+    done
+
+    if [ -z "$subcmd" ] || [ $COMP_CWORD -eq $i ] || [ "$subcmd" = help ]; then
+	COMPREPLY=(${COMPREPLY[@]:-}
+		   $(compgen -W 'bad good help init next reset' -- "$cur"))
+	return
+    fi
+
+    case "$subcmd" in
+	good|bad)
+	    _hg_tags
+	    _hg_branches
+	    ;;
+    esac
+
+    return
+}
+
+
+# patchbomb
+_hg_cmd_email()
+{
+    case "$prev" in
+	-c|--cc|-t|--to|-f|--from|--bcc)
+	    # we need an e-mail address. let the user provide a function
+	    # to get them
+	    if [ "$(type -t _hg_emails)" = function ]; then
+		local arg=to
+		if [[ "$prev" == @(-f|--from) ]]; then
+		    arg=from
+		fi
+		local addresses=$(_hg_emails $arg)
+		COMPREPLY=(${COMPREPLY[@]:-}
+			   $(compgen -W '$addresses' -- "$cur"))
+	    fi
+	    return
+	    ;;
+	-m|--mbox)
+	    # fallback to standard filename completion
+	    return
+	    ;;
+	-s|--subject)
+	    # free form string
+	    return
+	    ;;
+    esac
+
+    _hg_tags
+    _hg_branches
+    return
+}
+
+
+# gpg
+_hg_cmd_sign()
+{
+    _hg_tags
+    _hg_branches
+}
+
+
+# transplant
+_hg_cmd_transplant()
+{
+    case "$prev" in
+	-s|--source)
+	    _hg_paths
+	    _hg_repos
+	    return
+	    ;;
+	--filter)
+	    # standard filename completion
+	    return
+	    ;;
+    esac
+
+    # all other transplant options values and command parameters are revisions
+    _hg_tags
+    _hg_branches
+    return
+}
+