package main
import (
"flag"
"fmt"
"os"
"runtime"
"strings"
)
const (
Version = "0.1.0"
Warranty = `This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 3 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .`
)
func versionGet() string {
return strings.Join([]string{
"goredo", Version, "built with", runtime.Version(),
}, " ")
}
func usage() {
fmt.Fprintf(os.Stderr, versionGet()+`
Copyright (C) 2020 Sergey Matveev
License GPLv3: GNU GPL version 3
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
redo, redo-{always,cleanup,ifchange,ifcreate,log,stamp,whichdo} must be
linked to goredo executable. It determines the command by its own name.
You can create them by running: goredo -symlinks.
* redo [options] [target ...]
forcefully and sequentially build specified targets
* redo-always
always build current target. Unusable outside .do
* redo-cleanup {full,log,tmp} [...]
remove either all goredo's related temporary files, or kept stderr
logs, or everything (including .redo directories) related
* redo-ifchange target [...]
build specified targets in parallel, if they are changed. Record them
as dependencies for current target
* redo-ifcreate target [...]
record ifcreate dependency for current target. Unusable outside .do
* redo-log target [ | tai64nlocal ]
display kept target's stderr with TAI64N timestamped lines. Only the
last build is kept. You must enable stderr keeping with either
-stderr-keep, or REDO_STDERR_KEEP=1
* redo-stamp < [$3]
record stamp dependency for current target. Unusable outside .do
* redo-whichdo target
display .do search paths for specified target. Exits successfully
if the last .do in output if the found existing one
Options:
`)
flag.PrintDefaults()
fmt.Fprintln(os.Stderr, `
Additional environment variables:
NO_COLOR -- disable messages colouring
REDO_NO_HASH -- disable dependencies (except redo-stamp-ed) hashing
REDO_NO_SYNC -- disable files/directories explicit filesystem syncing
REDO_TOP_DIR -- do not search for .do above that directory
(it can contain .redo/top as an alternative)`)
}