#!/usr/bin/env tclsh
#
# MPUB, publish new release and update website
# Copyright (C) 2020-2022 Xavier Delaruelle
#
# 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, either version 2 of the License, or
# (at your option) any later version.
#
# 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 <http://www.gnu.org/licenses/>.

##########################################################################

proc reportUsage {} {
   puts "Usage: $::argv0 \[options\]

Publish new Modules release and update website

Options:
  -h, --help      Show this help message and exit"
}

proc sgr {sgrcode str} {
   return "\033\[${sgrcode}m$str\033\[0m"
}

proc logadd {str} {
   if {[info exists ::logfid]} {
      puts $::logfid $str
   }
}

proc reportInfo {str} {
   logadd "--- $str"
   puts [sgr 2 $str]
}

proc reportError {str} {
   logadd "### ERROR: $str"
   puts "[sgr {1;31} ERROR]: $str"
}

proc runcmd {args} {
   reportInfo "Running command: $args"
   eval exec >@$::logfid $args
}

proc ignoreexp {errmsg expmsg} {
   if {[string first $expmsg $errmsg] == -1} {
      error $errmsg
   }
}


# parse arguments
set hintmsg "\n  Try '$argv0 --help' for more information."
if {$argc > 1} {
   reportError "Unexpected number of arguments$hintmsg"
   exit 1
} elseif {$argc == 1} {
   switch -- [lindex $argv 0] {
      -h - --help {
         reportUsage
         exit 0
      }
      default {
         reportError "Invalid option '[lindex $argv 0]'$hintmsg"
         exit 1
      }
   }
}


# surround whole code to catch error and quit properly
if {[catch {

set exitcode 0
set dlurl http://downloads.sourceforge.net/modules
set cwd [pwd]

# define and open log file
set logfile mpub.out
set logfid [open $logfile w]

# get current branch
set relbranch [exec git branch --show-current]
if {[regexp {^(main|v\d+.\d+.x)$} $relbranch]} {
   reportInfo "Found branch '$relbranch'"
} else {
   error "git branch '$relbranch' is not a valid release branch"
}

# ensure head sit on a tag
set reltag [exec git describe --tags --exact-match]
reportInfo "Found release tag '$reltag'"
if {[regexp {^v(\d+.\d+.\d+(-(alpha|beta))?)$} $reltag match relver]} {
   reportInfo "Extract release version number '$relver'"
} else {
   error "git tag '$reltag' is not a valid release tag"
}

# get previous version for website update
set prevtag [lindex [exec git tag --list v*] end-1]
reportInfo "Found previous release tag '$prevtag'"
if {[regexp {^v(\d+.\d+.\d+(-(alpha|beta))?)$} $prevtag match prevver]} {
   reportInfo "Extract previous release version number '$prevver'"
} else {
   error "git tag '$prevtag' is not a valid release tag"
}

# check mrel status
if {[file exists mpub.ok]} {
   reportInfo {Found 'mrel' successful state}
} else {
   reportError {'mrel' must be run prior 'mpub'}
}

# get name of GitHub remote repository
if {![info exists env(MREL_GITHUB_REMOTE)]} {
   puts -nonewline "GitHub remote: "
   flush stdout
   gets stdin env(MREL_GITHUB_REMOTE)
}
set ghremote $env(MREL_GITHUB_REMOTE)
reportInfo "GitHub remote set to '$ghremote'"

# get name of SourceForge remote repository
if {![info exists env(MREL_SOURCEFORGE_REMOTE)]} {
   puts -nonewline "SourceForge remote: "
   flush stdout
   gets stdin env(MREL_SOURCEFORGE_REMOTE)
}
set sfremote $env(MREL_SOURCEFORGE_REMOTE)
reportInfo "SourceForge remote set to '$sfremote'"

set distgz modules-$relver.tar.gz
set distbz modules-$relver.tar.bz2
set distwin modules-$relver-win.zip


# Phase 1: push to git repositories
# ---------------------------------------------------------

runcmd 2>@$logfid git push $sfremote c-3.2
runcmd 2>@$logfid git push $sfremote $relbranch
runcmd 2>@$logfid git push $sfremote $reltag

runcmd 2>@$logfid git push $ghremote c-3.2
runcmd 2>@$logfid git push $ghremote $relbranch
runcmd 2>@$logfid git push $ghremote $reltag


# Phase 2: publish release dists
# ---------------------------------------------------------

set fid [open mpubbatch w]
puts $fid "cd /home/frs/project/modules/Modules
mkdir modules-$relver
cd modules-$relver
put doc/build/NEWS.txt
put doc/build/MIGRATING.txt
put $distgz
put $distbz
put $distwin"
close $fid
runcmd sftp -o BatchMode=yes -b mpubbatch frs.sourceforge.net
file delete mpubbatch


# Phase 3: verify uploaded dists
# ---------------------------------------------------------

file mkdir dlcheck
cd dlcheck
runcmd 2>@$logfid wget -O $distgz $dlurl/$distgz
runcmd 2>@$logfid wget -O $distbz $dlurl/$distbz
runcmd 2>@$logfid wget -O $distwin $dlurl/$distwin
runcmd md5sum --check ../mpub.ok

file delete $distgz $distbz $distwin
cd ..
file delete dlcheck


# Phase 4: update website
# ---------------------------------------------------------

if {[catch {runcmd make distclean} errmsg]} {
   # skip error if things have already been cleaned up
   ignoreexp $errmsg {*** Makefile.inc is missing, please run\
      './configure'.  Stop.}
}
runcmd 2>@$logfid git checkout gh-pages

# update index.html
set fid [open index.html r]
set index [read $fid]
close $fid
set fid [open index.html w]
puts -nonewline $fid [string map [list modules-$prevver modules-$relver\
   "Download ($prevtag)" "Download ($reltag)"] $index]
close $fid
runcmd 2>@$logfid git commit -m "release of version $relver" index.html
runcmd 2>@$logfid git push $ghremote gh-pages

# upload new page
set fid [open mpubbatch w]
puts $fid "cd /home/project-web/modules/htdocs/
put index.html"
close $fid
runcmd sftp -o BatchMode=yes -b mpubbatch web.sourceforge.net
file delete mpubbatch

runcmd 2>@$logfid git checkout $relbranch


# everything's done, clean file transmitted by mrel
file delete mpub.ok


# exit in error if any occurred
} errmsg]} {
   reportError $errmsg
   set exitcode 1
}

close $logfid
exit $exitcode

# vim:set tabstop=3 shiftwidth=3 expandtab autoindent syntax=tcl: