########################################################################
# Copyright (C) 2006 Aleksey Nogin
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this file, to deal in the File without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the File, and to permit persons to whom the File
# is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the File.
#
# THE FILE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# FILE OR THE USE OR OTHER DEALINGS IN THE FILE.

########################################################################
# This file defines an svn_realclean utility. The svn_realclean utility removes
# all unversioned files in a subversion wc.
#
# Usage: svn_realclean [options] [dir1 [dir2 ...]]
# Options are:
#    -f         Do not ask whether to remove files
#    -i <file>  Ignore the file
#    -help      Display this list of options
#    --help     Display this list of options
# If no directories are given, . is used.

open configure/Configure

static. =
    SVN_AVAILABLE = $(CheckProg svn)

if $(SVN_AVAILABLE)
    Shell. +=
        svn_realclean(argv) =
            usage(msg,err) =
                println($"""$(msg)

Usage: svn_realclean [options] [dir1 [dir2 ...]]
Options are:
   -f         Do not ask whether to remove files
   -i <file>  Ignore the file
   -help      Display this list of options
   --help     Display this list of options
If no directories are given, . is used.
""")
                exit($(err))
            FORCE=false
            IGNORES[]=
            DIRS[] = $(dir .)
            while $(gt $(length $(argv)), 0)
                match $(nth 0, $(argv))
                case $'^-f$'
                    FORCE=true
                    argv = $(nth-tl 1, $(argv))
                    export
                case $'^-i$'
                    if $(gt $(length $(argv)), 1)
                        IGNORES[] += $(file $(nth 1, $(argv)))
                        argv = $(nth-tl 2, $(argv))
                        export
                    else
                        usage($"The -i option requires an argument", 1)
                    export
                case $'^--?help$'
                    usage($"The svn_realclean utility removes all unversioned files in a subversion wc.", 0)
                case $'^-'
                    usage($"Unknown option: $(nth 0, $(argv))", 1)
                default
                    DIRS[] = $(dir $(argv)) 
            if $(FORCE)
                Shell. +=
                    do_clean(IGNORES) =
                        awk()
                        case $'^[I?] '
                            f = $(file $2)
                            if $(not $(mem $f, $(IGNORES)))
                                println($"Removing $f...")
                                rm -rf $f
                svn st --no-ignore $(DIRS) | do_clean $(IGNORES)
            else
                # rm -ri will require a real stdin, so we can not use the same
                # "svn ... | do_clean" pipeline here.
                tmp = $(tmpfile svn_realclean)
                svn st --no-ignore $(DIRS) > $(tmp)
                awk($(tmp))
                case $'^[I?] '
                    f = $(file $2)
                    if $(not $(mem $f, $(IGNORES)))
                        # println($"Removing $f...")
                        rm -ri $f
                rm -rf $(tmp)
    export
else
    Shell. +=
        svn_realclean(argv) =
            eprintln($"svn_realclean requires the svn binary, but svn is missing")
            exit(1)
    export

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