# -*- mode: conf -*-

# Copyright (C) 2010-2022  Sean Whitton <spwhitton@spwhitton.name>
#
# This file 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 3 of the License, or (at
# your option) any later version.
#
# This file 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 file.  If not, see <https://www.gnu.org/licenses/>.

[DEFAULT]

git_update = git pull-safe "$@"

# Avoid trying to push to read-only remotes.
# Sometimes will want to redefine for a repository to include --no-tags.
git_push = git push-all "$@"

# Look for branches with unpushed commits in only the main working tree, but
# look for loose commits on a possibly-detached HEAD in all working trees.
# Thus, we assume that for each linked working tree registered with myrepos,
# its main working tree is also registered (we don't assume the converse).
git_status =
    git status --short "$@" ||:
    if [ ! -h .git -a -d .git ]; then
        git --no-pager log HEAD --branches --not --remotes \
            --simplify-by-decoration --decorate --oneline ||:
        git --no-pager stash list
    else
        git --no-pager log HEAD --not --branches --remotes \
            --simplify-by-decoration --decorate --oneline ||:
    fi

# Custom actions to be configured repository-by-repository.
sync = :
autoci = :

git_isclean = git is-clean
git_clean = git clean -xdff

# There is no 'mr stow' to help avoid accidentally stowing repos that aren't
# intended ever to be stowed.  Can type 'hstow stow .' for an initial stow.
lib =
    when_stowed () {
	if [ -e "$HOME/.STOW/$(echo "$MR_REPO" | tr / _)" ]; then
	    hstow "$MR_ACTION" "$MR_REPO"
	fi
    }
adopt  = when_stowed
unstow = when_stowed
restow = when_stowed

# Repack git-remote-gcrypt origin remotes.
# Useful to avoid surprise repacks; see git-remote-gcrypt README.rst.
git_repack =
    git config --get remote.origin.gcrypt-id >/dev/null || exit 0
    if ! git is-clean; then
        echo >&2 must commit first; exit 1
    elif [ -n "$(git for-each-ref \
    	      	     --no-contains=origin/master refs/heads/master)" ]; then
       git pull origin master
    fi
    # Ensure that there is something to push, else no repack will occur.
    [ -n "$(git for-each-ref \
                --contains=master refs/remotes/origin/master)" ] \
        && git push -f origin origin/master~1:master
    GCRYPT_FULL_REPACK=yes git push origin master

lib =
    if [ -n "$USER" ]; then
	whoami="$USER"
    elif [ -n "$LOGNAME" ]; then
	whoami="$LOGNAME"
    else
	# Cut off any Windows machine name.
	whoami="$(whoami)"; whoami="${whoami##*\\}"
    fi
    # Ensure it's a short hostname, not an FQDN.
    hostname="$(hostname)"; hostname="${hostname%%.*}"
    win32() {
        test "$(perl -e 'print $^O')" = msys
    }
    # This function is from joeyh's myrepos config.
    on() {
        for host in $@; do
            if [ "${host%@*}" != "${host#*@}" ]; then
                if [ "$whoami" != "${host%@*}" ]; then
                    continue
                fi
                host="${host#*@}"
            fi
            if [ "$hostname" = "$host" ]; then
                return 0
            fi
        done
        return 1
    }
    workstation() {
        on swhitton@zephyr spwhitton@melete
    }
    mine() {
        workstation || on spwhitton@athena
    }
    #
    git_worktree_checkout () {
	local repo=$1; shift
	local i=0
	while [ $((i += 1)) -lt $# ]; do
	    set -- "$@" "$1"; shift
	done
	local committish=$1; shift
	git -C "$repo" worktree add "$@" "$MR_REPO" "$committish"
    }
    git_worktree_skip () {
        case "$MR_ACTION" in
	    checkout)
	        eval "set -- $(mr config "$MR_REPO" checkout)"
	        [ "$1" = git_worktree_checkout -a ! -d "$2" ] && return 0
		;;
	    # Avoid fetching from remotes over and over again.
	    update)
	        return 0
	        ;;
	esac
	return 1
    }

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

[src/dotfiles]
checkout = git clone https://git.spwhitton.name/dotfiles
# We have a script to update master, and all other branches should be checked
# out and committed to on only a single host, so no need to update them here,
# and they'll always be rebaseable.
update = git dotfiles-update-master
# Update from master on a host that has its own branch.
pull = git dotfiles-update-master; git co "$hostname" && git rebase master
# Attempt to ensure tip of master is signed before attempting to push.
pre_push =
    if git diff-index --quiet --cached HEAD \
       && ! git verify-commit-spw master; then
	[ "$(git rev-parse --abbrev-ref HEAD)" = master ] || git co master
	git commit -S --amend --no-edit
	if git rev-parse -q --verify refs/heads/"$hostname" >/dev/null; then
	    git co "$hostname"
	    git rebase master
	fi
    fi
fixups = bstraph

[lib/priv]
checkout = git clone athenag:libpriv.git priv
update = git annex sync --content cloud origin
push = git annex sync --content cloud origin
sync = mr autoci && git annex sync --no-commit --content cloud origin
pre_status = git update-index -q --refresh \
    .passwddb.pet .labbook.gpg .gnupg/pubring.kbx
fixups =
    chmod 600 \
        .passwddb.pet .gnupg/*.kbx .gnupg/private-keys-v1.d/*.key .ssh/id_*
    hstow restow ~/lib/priv
    # We used to --export-ownertrust, but now we just manually maintain this
    # file, import it here, and don't set ownertrust values interactively.
    command -v gpg >/dev/null && gpg --import-ownertrust ~/lib/priv/otrust.lst
skip = lazy

post_checkout =
    cd priv
    git annex init
    git annex enableremote cloud
    git annex group . backup
    # Delete any pubring.kbx created by INSINUATE-DOTFILES Consfigurator
    # property / 'insinuate-dotfiles' shell script: don't want to adopt it.
    rm -f ~/.gnupg/pubring.kbx

autoci =
        hstow stow ~/lib/priv	# to perform adoptions
        git annex add .passwddb.pet .labbook.gpg .gnupg/pubring.kbx
        git commit -a -m \
            "auto passwddb, pubring and labbook commit on $(hostname -s)" ||:
pre_update = mr autoci

[src/athpriv]
checkout = git clone demeterp:athpriv
pre_update = on athena || git annex sync origin athenah
pre_push = on athena || git annex sync --content origin athenah
post_update = hstow restow ~/src/athpriv
post_checkout = hstow stow ~/src/athpriv
# Deal with phantom modifications because git-annex couldn't update the index.
# Avoid calling git-update-index(1) on other score files (including those
# we've already called it on since the last commit) so as to avoid continually
# annexing intermediate versions of score files.
pre_status = git status -s -- News/*.SCORE News/*.ADAPT \
    | perl -MGit=unquote_path,command \
	   -wlne'/^ M / and push @up, unquote_path $'"'"';
		 END { @up and command qw(update-index -q --refresh), @up }'
skip = ! mine

post_checkout =
    cd athpriv
    git annex init
    on athena || git remote add athenah athenah:src/athpriv
    git annex group . backup

autoci =
    git annex add News/*
    git commit News -m"auto commit of Gnus score files" ||:

fixups =
    # Drop score files unused by master or origin/master for a week.
    [ "$MR_ACTION" = checkout -o "$MR_ACTION" = update ] || git fetch origin
    git annex unused \
	--used-refspec="+refs/heads/master:+refs/remotes/origin/master" \
	| perl -wlne'BEGIN { $w = time - 7*24*60*60 } /^\s+(\d+)\s+/
	and $t = `git log -1 --format="%ct" --no-textconv -S"$'"'"'" -- News`
	and $t < $w and print $1' | xargs git annex dropunused --force

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

[doc]
checkout = git clone demeterp:doc doc
update = git pull --rebase=false --no-edit "$@"
autoci = doccheckin
pre_update = win32 || doccheckin
sync = doccheckin && git pull --no-edit && git push
# Set mtimes to last commit, for Howm; doing so only in post_checkout, and not
# fixups, should be sufficient for summary buffer ordering purposes.
post_checkout = git utime
skip = ! mine

[src/wiki]
checkout = git clone demeter:wiki
skip = ! mine

[lib/realloc]
checkout = git clone demeterp:realloc
skip = ! mine

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

[lib/radicale]
checkout = git clone demeterp:radicale radicale
skip = ! on spwhitton@athena

[public_html]
clone = git clone https://git.spwhitton.name/sageweb public_html
skip = ! on spwhitton@sage

[html]
clone = git clone https://git.spwhitton.name/sdfweb html
skip = ! [ "$(domainname)" = SDF ]

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

[lib/annex]
checkout = git clone athenag:annex.git annex
post_checkout =
    cd annex
    git annex init
    git annex enableremote athena rsyncurl=athena:local/rsync/annex
update = git annex sync --no-content origin
push = git annex sync --content origin athena
skip = lazy

[annex]
checkout = git clone athenag:annex19.git annex
post_checkout = cd annex; git annex init; git annex enableremote cloud
update = git annex sync --no-content origin
push = git annex sync --content cloud origin
skip = lazy

[lib/wikiannex]
checkout = git clone demeter:wikiannex
post_checkout = cd wikiannex; git annex init
update = git annex sync --no-content
push = git annex sync --content
fixups = ! on demeter || git annex adjust --hide-missing --unlock
skip = lazy

[lib/podcasts]
checkout = git clone demeterp:podcasts
post_checkout = cd podcasts; git annex init
update = ./update-and-sync
push = git annex --no-content sync
skip = lazy

[lib/athena-apt]
checkout = git clone demeter:athena-apt
post_checkout =
    cd athena-apt
    git annex init --version=7
    git annex enableremote demeter rsyncurl=demeter:/srv/www/debian
    git annex get .
update = git annex sync --no-content
skip = lazy

push =
    git annex add
    git annex unlock db
    git annex sync --content demeter
    git annex sync origin
    ssh demeter find /srv/www/debian -type f -exec chmod 644 '{}' +
    ssh demeter find /srv/www/debian -type d -exec chmod 755 '{}' +

# The git-diff-files(1) call in ~/src/dotfiles/bin/git-is-clean fails in v7
# git-annex repos with unlocked empty files, which this repo often has: empty
# Packages files.
isclean =
    output="$(git annex status)"
    test -z "$output" || ( echo "$output"; exit 1 )

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

# "master" branch: just for installing changes to upstream master
#
# "$(hostname -s)" branch:
#
#     Rebased onto a branch from sv.gnu.org, usually master.  It has
#
#       - bug fixes, reversions etc., (cleaned up versions of) which have not
#         yet made it onto sv.gnu.org's master, but which are required for my
#         own usage, on this machine or in general
#
#       - WIP patches of my own -- this branch is used for my own development
#         work, at least where that doesn't require long-lived feature
#         branches, or when we are rebasing onto master but need to commit to
#         emacs-NN and they're too different to cherry-pick across, etc..
#
#     A key advantage of using these development builds is that references to
#     files in *Help* buffers will be to ~/src/emacs/primary, not to somewhere
#     owned by root.  Another reason for having a branch for localhost is to
#     keep track of what upstream commit we want to be running on this host,
#     and which upstream branch we want to rebase onto, e.g. emacs-29
#     vs. master, or some feature branch we want to test here.
#
#     This branch doesn't usually need to be pushed anywhere, but if we do
#     need to push it somewhere for backup purposes, we execute
#
#     % git config branch."$(hostname -s)".pushRemote demeter
#
#     and then 'mr push' will force push it to demeter.
#
# "athena/unstable" branch:
#
#     Merges from sv.gnu.org's master branch or the latest emacs-NN release
#     branch, only.  .deb packages produced from this branch are available from
#     <http://silentflame.com/debian>.  There are two purposes:
#
#       - providing byte-compiled Lisp /usr/share/emacs-snapshot/site-lisp/elpa
#         to builds from the "$(hostname -s)" branch
#
#       - direct use on machines other than my development laptop where I want
#         something more current than the stable release of Emacs but not with
#         my current WIP.
#
#     Updated only when new fixes, features or reversions on sv.gnu.org's
#     master branch or the latest emacs-NN branch are wanted on machines other
#     than my development laptop.  To do that, first "melete" is updated using
#     "mr pull", and then I run that build for a day or so.  Then
#
#     % cd ~/src/deb/emacs-snapshot
#     % debian/merge-snapshot
#     % dgit sbuild --no-run-lintian
#     % cp ../emacs-snapshot_29~git202*amd64.deb<TAB> ~/local/develacc/tmp
#     % sudo virsh start develacc.melete.silentflame.com
#     % cd /ssh:root@develacc:/home/spwhitton/tmp
#     % apt-get install ./emacs-snapshot_29~git202*amd64.deb<TAB>
#     % rm emacs-snapshot_29~git202*amd64.deb<TAB>
#     % cd //ssh:develacc:src/dotfiles
#     % mr up
#
#     C-i s develacc RET
#       $ /opt/emacs-snapshot/bin/emacs -nw --debug-init
#
#     % cd ~//src/deb/emacs-snapshot
#     % sudo virsh destroy develacc.melete.silentflame.com
#     % reprepro-rebuilder --release         # if develacc test was successful
#
#     If need to back out before reprepro-rebuilder:
#         % cd ~//src/deb/emacs-snapshot
#         % git reset --hard demeter/athena/unstable
#
#     It is important to test local installability of the new .deb, probably
#     in develacc or a sid chroot, before adding to demeter-apt, because
#     running the rebased "melete" branch doesn't detect any byte compilation
#     issues against my current selection of elpa-* packages.
#
# "athena/CODENAME-bpo" branch:
#
#     Backported from athena/unstable.  Automatically updated by
#     reprepro-rebuilder when updating athena/unstable as described above.
#
# See also bin/emacsclient wrapper script in dotfiles.git.

# This worktree: usually the master branch, sometimes some feature branch.
[src/emacs/trunk]
checkout = git clone https://git.savannah.gnu.org/git/emacs.git trunk
post_clean = ./autogen.sh autoconf
post_checkout =
    cd trunk
    git remote add -f demeter demeter:emacs ||:
    git -c fetch.fsckObjects=false \
    	remote add -f debian https://salsa.debian.org/rlb/deb-emacs.git/ ||:
    ./autogen.sh all
skip = lazy

# This worktree: either a detached HEAD or the "$hostname" branch.
[src/emacs/primary]
checkout = git_worktree_checkout "$HOME/src/emacs/trunk" \
    -b "$hostname" --no-track \
    "$(if [ -n "$(git -C $HOME/src/emacs/trunk \
    	       	      for-each-ref '[r]efs/remotes/demeter/'"$hostname")" ]
	  then echo demeter/"$hostname"; else echo master; fi)"
post_clean = ./autogen.sh autoconf
post_checkout = cd primary; ./autogen.sh autoconf
# We don't have the "$(hostname -s)" branch's upstream set to origin/master to
# avoid accidentally pushing personal commits to Savannah (push.default cannot
# help here).  So for convenient updates of "$(hostname -s)" to its conceptual
# upstream, we have this definition.  "pull" not "update" because we want to
# update from upstream deliberately, not as part of automated updates.
pull =
    branch="${1:-$(git reflog $hostname -1 --pretty='%gs' \
		       --grep-reflog='^pull --rebase --autostash origin' \
		       | awk '{print $5}')}"
    if [ -n "$branch" ]; then
	git co "$hostname"
	git pull --rebase --autostash origin "$branch"
    else
	echo >&2 "Don't know what to pull; try 'mr pull BRANCH'."; exit 1
    fi
skip = lazy || git_worktree_skip

[src/emacs/release]
checkout = git_worktree_checkout "$HOME/src/emacs/trunk" \
    -b emacs-29 origin/emacs-29
post_clean = ./autogen.sh autoconf
post_checkout = cd release; ./autogen.sh autoconf
skip = lazy || git_worktree_skip

# src/deb/ contains repos/worktrees used only, or almost only, for packaging
# work, and not for working upstream.

[src/deb/emacs-snapshot]
checkout = git_worktree_checkout "$HOME/src/emacs/trunk" \
    -b athena/unstable demeter/athena/unstable
skip = ! workstation || git_worktree_skip

[src/deb/emacs]
checkout = git_worktree_checkout "$HOME/src/emacs/trunk" \
    -b deb/emacs/d/sid/master debian/deb/emacs/d/sid/master
skip = ! workstation || git_worktree_skip

[src/deb/emacs-non-dfsg]
checkout = git_worktree_checkout "$HOME/src/emacs/trunk" \
    -b deb/emacs-non-dfsg/d/sid/master debian/deb/emacs-non-dfsg/d/sid/master
skip = ! workstation || git_worktree_skip

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

[src/elpa]
checkout = git clone https://git.savannah.gnu.org/git/emacs/elpa.git
post_checkout = cd elpa && make setup
skip = lazy

[src/nongnu-elpa]
checkout = git clone https://git.savannah.gnu.org/git/emacs/nongnu.git nongnu-elpa
post_checkout = cd elpa && make
skip = lazy

[src/org-mode]
checkout = git clone https://git.savannah.gnu.org/git/emacs/org-mode.git
skip = lazy

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

[src/dgit]
checkout = git clone salsa:dgit-team/dgit
post_checkout =
    cd dgit
    git remote add -f demeter demeter:dgit ||:
    dgit setup-new-tree
skip = lazy

[src/p5-Git-Annex]
checkout = git clone demeter:p5-Git-Annex
post_checkout =
    cd p5-Git-Annex
    git remote \
        add -f salsa salsa:perl-team/modules/packages/libgit-annex-perl ||:
    git branch --track debian salsa/master
skip = lazy

[src/p5-API-GitForge]
checkout = git clone demeter:p5-API-GitForge
post_checkout =
    cd p5-API-GitForge
    git remote \
        add -f salsa salsa:perl-team/modules/packages/libapi-gitforge-perl ||:
    git branch --track debian salsa/master
skip = lazy

[src/notmuch]
checkout = git clone https://git.notmuchmail.org/git/notmuch
skip = lazy

[src/linux]
checkout =
  git clone https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
skip = lazy

[src/sbcl]
checkout =
    git -c fetch.fsckobjects=false clone https://git.code.sf.net/p/sbcl/sbcl
skip = lazy