summaryrefslogtreecommitdiff
path: root/include/git.sh
blob: 2976ff3330f45ddc4effa69da503d0097139f57a (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
# SPDX-License-Identifier: GPL-3.0-or-later
# SPDX-FileCopyrightText: 2020,2021,2023 Leah Rowe <leah@libreboot.org>
# SPDX-FileCopyrightText: 2022 Caleb La Grange <thonkpeasant@protonmail.com>

# This file is only used by update/project/trees

eval "$(setvars "" _target rev _xm loc url bkup_url depend)"
tmp_git_dir="${PWD}/tmp/gitclone"

fetch_project_trees()
{
	_target="${target}"
	[ -d "src/${project}/${project}" ] || fetch_from_upstream
	fetch_config
	[ -z "${rev}" ] && err "fetch_project_trees $target: undefined rev"
	[ -d "src/${project}/${tree}" ] && \
		printf "download/%s %s (%s): exists\n" \
		    "${project}" "${tree}" "${_target}" 1>&2 && return 0
	prepare_new_tree
}

fetch_from_upstream()
{
	[ -d "src/${project}/${project}" ] && return 0

	x_ mkdir -p "src/${project}"
	fetch_project_repo "${project}"
}

fetch_config()
{
	rm -f "${cfgsdir}/"*/seen || err "fetch_config ${cfgsdir}: !rm seen"
	while true; do
		eval "$(setvars "" rev tree)"
		_xm="fetch_config ${project}/${_target}"
		load_target_config "${_target}"
		[ "${_target}" != "${tree}" ] && _target="${tree}" && continue
		break
	done
}

load_target_config()
{
	[ -f "${cfgsdir}/${1}/target.cfg" ] || \
		err "${_xm} check: target.cfg does not exist"
	[ -f "${cfgsdir}/${1}/seen" ] && \
		err "${_xm} check: infinite loop in tree definitions"

	. "${cfgsdir}/${1}/target.cfg" || \
	    err "load_target_config ${cfgsdir}/${1}: cannot load config"

	touch "${cfgsdir}/${1}/seen" || err "load_config $cfgsdir/$1: !mk seen"
}

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

	x_ cp -R "src/${project}/${project}" "src/${project}/${tree}"
	git_reset_rev "src/${project}/${tree}" "${rev}"
	(
	x_ cd "src/${project}/${tree}"
	[ ! -f ".gitmodules" ] || \
	    git submodule update --init --checkout || \
	    err "prepare_new_tree ${project}/${tree}: can't update git modules"
	)
	git_am_patches "$PWD/src/$project/$tree" "$PWD/$cfgsdir/$tree/patches"
}

fetch_project_repo()
{
	scan_config "${project}" "config/git" "err"
	verify_config

	clone_project
	[ -z "${depend}" ] || for d in ${depend} ; do
		x_ ./update trees -f ${d}
	done
	rm -Rf "${tmp_git_dir}" || err "fetch_repo: !rm -Rf ${tmp_git_dir}"
}

verify_config()
{
	[ -z "${rev+x}" ] && err 'verify_config: rev not set'
	[ -z "${loc+x}" ] && err 'verify_config: loc not set'
	[ -z "${url+x}" ] && err 'verify_config: url not set'
	return 0
}

clone_project()
{
	rm -Rf "${tmp_git_dir}" || err "clone_project: !rm -Rf ${tmp_git_dir}"
	mkdir -p "${tmp_git_dir%/*}" || \
	    err "clone_project: !mkdir -p ${tmp_git_dir%/*}"

	loc="${loc#src/}"
	loc="src/${loc}"

	git clone ${url} "${tmp_git_dir}" || \
	    git clone ${bkup_url} "${tmp_git_dir}" || \
	    err "clone_project: could not download ${project}"
	git_reset_rev "${tmp_git_dir}" "${rev}"
	git_am_patches "${tmp_git_dir}" "${PWD}/config/${project}/patches"

	x_ rm -Rf "${loc}"
	[ "${loc}" = "${loc%/*}" ] || x_ mkdir -p ${loc%/*}
	mv "${tmp_git_dir}" "${loc}" || \
	    err "clone_project: !mv ${tmp_git_dir} ${loc}"
}

git_reset_rev()
{
	(
	cd "${1}" || err "git_reset_rev: !cd ${1}"
	git reset --hard ${2} || err "!git reset ${1} <- ${2}"
	if [ "${project}" != "coreboot" ] && [ "${project}" != "u-boot" ] && \
	    [ -f ".gitmodules" ]; then
		git submodule update --init --checkout || \
		    err "git_reset_rev ${1}: can't download submodules"
	fi
	)
}

git_am_patches()
{
	sdir="${1}" # assumed to be absolute path
	patchdir="${2}" # ditto
	(
	cd "${sdir}" || err "git_am_patches: !cd ${sdir}"
	for patch in "${patchdir}/"*; do
		[ -L "${patch}" ] && continue
		[ -f "${patch}" ] || continue
		if ! git am "${patch}"; then
			git am --abort || err  "${sdir}: !git am --abort"
			err  "!git am ${patch} -> ${sdir}"
		fi
	done
	)
	for patches in "${patchdir}/"*; do
		[ -L "${patches}" ] && continue
		[ -d "${patches}" ] && git_am_patches "${sdir}" "${patches}"
	done
}