summaryrefslogtreecommitdiff
path: root/include/git.sh
blob: 2f9359c932e5059f1a005353af3295c9079fd9a5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
# SPDX-License-Identifier: GPL-3.0-or-later
# Copyright (c) 2020-2021,2023-2024 Leah Rowe <leah@libreboot.org>
# Copyright (c) 2022 Caleb La Grange <thonkpeasant@protonmail.com>

eval "$(setvars "" _target rev _xm loc url bkup_url depend tree_depend xtree \
    mdir subhash subrepo subrepo_bkup subfile subfile_bkup)"

fetch_project_trees()
{
	_target="$target"
	[ ! -d "src/$project/$project" ] && x_ mkdir -p "src/$project" \
	    && fetch_project_repo "$project"
	fetch_config
	e "src/$project/$tree" d || prepare_new_tree; return 0
}

fetch_config()
{
	rm -f "$cfgsdir/"*/seen || $err "fetch_config $cfgsdir: !rm seen"
	eval "$(setvars "" xtree tree_depend)"
	while true; do
		eval "$(setvars "" rev tree)"
		_xm="fetch_config $project/$_target"
		load_target_config "$_target"
		[ "$_target" = "$tree" ] && break
		_target="$tree"
	done
	[ -n "$tree_depend" ] && [ "$tree_depend" != "$tree" ] && \
		x_ ./update trees -f "$project" "$tree_depend"; return 0
}

load_target_config()
{
	[ -f "$cfgsdir/$1/target.cfg" ] || $err "$1: target.cfg missing"
	[ -f "$cfgsdir/$1/seen" ] && $err "$_xm cfg: infinite loop in trees"

	. "$cfgsdir/$1/target.cfg" || $err "load_target_config !$cfgsdir/$1"
	touch "$cfgsdir/$1/seen" || $err "load_config $cfgsdir/$1: !mk seen"
}

prepare_new_tree()
{
	printf "Creating %s tree %s (%s)\n" "$project" "$tree" "$_target"

	git_prep "src/$project/$project" "src/$project/$project" \
	    "$PWD/$cfgsdir/$tree/patches" "src/$project/$tree" "update"
	nuke "$project/$tree" "$project/$tree"
}

fetch_project_repo()
{
	eval "$(setvars "" xtree tree_depend)"

	scan_config "$project" "config/git"
	chkvars loc url

	[ -n "$xtree" ] && [ ! -d "src/coreboot/$xtree" ] && \
		x_ ./update trees -f coreboot "$xtree"
	[ -z "$depend" ] || for d in $depend ; do
		printf "'%s' needs dependency '%s'; grabbing '%s' now\n" \
		    "$project" "$d" "$d"
		x_ ./update trees -f $d
	done
	clone_project

	for x in config/git/*; do
		[ -f "$x" ] && nuke "${x##*/}" "src/${x##*/}" 2>/dev/null; \
		    continue
	done
}

clone_project()
{
	loc="${loc#src/}"
	loc="src/$loc"

	printf "Downloading project '%s' to '%s'\n" "$project" "$loc"
	e "$loc" d && return 0

	remkdir "${tmpgit%/*}"
	git_prep "$url" "$bkup_url" "$PWD/config/$project/patches" "$loc"
}

git_prep()
{
	_patchdir="$3" # $1 and $2 are gitrepo and gitrepo_backup
	_loc="$4"

	chkvars rev

	tmpclone "$1" "$2" "$tmpgit" "$rev" "$_patchdir"
	if singletree "$project" || [ $# -gt 4 ]; then
		prep_submodules "$_loc"
	fi

	[ "$project" = "coreboot" ] && [ -n "$xtree" ] && [ $# -gt 2 ] && \
	    [ "$xtree" != "$tree" ] && link_crossgcc "$_loc"

	[ "$xbmk_release" = "y" ] && [ "$_loc" != "src/$project/$project" ] \
	    && rmgit "$tmpgit"

	move_repo "$_loc"
}

prep_submodules()
{
	mdir="$PWD/config/submodule/$project"
	[ -n "$tree" ] && mdir="$mdir/$tree"

	[ -f "$mdir/module.list" ] && while read -r msrcdir; do
		fetch_submodule "$msrcdir"
	done < "$mdir/module.list"; return 0
}

fetch_submodule()
{
	mcfgdir="$mdir/${1##*/}"
	eval $(setvars "" subhash subrepo subrepo_bkup subfile subfile_bkup st)
	[ ! -f "$mcfgdir/module.cfg" ] || . "$mcfgdir/module.cfg" || \
	    $err "! . $mcfgdir/module.cfg"

	for xt in repo file; do
		eval "[ -n \"\$sub$xt\$sub${xt}_bkup\" ] && st=\"\$st \$xt\""
	done
	st="${st# }" && [ "$st" = "repo file" ] && $err "$mdir: repo+file"

	[ -z "$st" ] && return 0 # subrepo/subfile not defined
	chkvars "sub${st}" "sub${st}_bkup" "subhash"

	[ "$st" = "file" ] && download "$subfile" "$subfile_bkup" \
	    "$tmpgit/$1" "$subhash" && return 0
	rm -Rf "$tmpgit/$1" || $err "!rm '$mdir' '$1'"
	tmpclone "$subrepo" "$subrepo_bkup" "$tmpgit/$1" "$subhash" \
	    "$mdir/${1##*/}/patches"
}

tmpclone()
{
	git clone $1 "$3" || git clone $2 "$3" || $err "!clone $1 $2 $3 $4 $5"
	git -C "$3" reset --hard "$4" || $err "!reset $1 $2 $3 $4 $5"
	git_am_patches "$3" "$5"
}

git_am_patches()
{
	for _patch in "$2/"*; do
		[ -L "$_patch" ] || [ ! -f "$_patch" ] || git -C "$1" am \
		    "$_patch" || $err "$1 $2: !git am $_patch"; continue
	done
	for _patches in "$2/"*; do
		[ ! -L "$_patches" ] && [ -d "$_patches" ] && \
			git_am_patches "$1" "$_patches"; continue
	done
}

link_crossgcc()
{
	(
	x_ cd "$tmpgit/util" && x_ rm -Rf crossgcc
	ln -s "../../$xtree/util/crossgcc" crossgcc || $err "$1: !xgcc link"
	) || $err "$1: !xgcc link"
}

move_repo()
{
	[ "$1" = "${1%/*}" ] || x_ mkdir -p "${1%/*}"
	mv "$tmpgit" "$1" || $err "git_prep: !mv $tmpgit $1"
}

# can delete from multi- and single-tree projects.
# called from script/trees when downloading sources.
nuke()
{
	e "config/${1%/}/nuke.list" f missing || while read -r nukefile; do
		rmf="src/${2%/}/$nukefile" && [ -L "$rmf" ] && continue
		e "$rmf" e missing || rm -Rf "$rmf" || $err "!rm $rmf, ${2%/}"
	done < "config/${1%/}/nuke.list"; return 0
}