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#!/bin/sh
nl="
"
log() {
# shellcheck disable=SC2039
local IFS=" "
printf '%s\n' "$*"
}
log_error() {
# shellcheck disable=SC2039
local IFS=" "
printf 'Error: %s\n' "$*" >&2
}
link_contents() {
# shellcheck disable=SC2039
local src="$1" dest="$2" IFS="$nl" dirs dir base
if [ -n "$(find "$src" -mindepth 1 -maxdepth 1 -name "*.go" -not -type d)" ]; then
log_error "$src is already a Go library"
return 1
fi
dirs="$(find "$src" -mindepth 1 -maxdepth 1 -type d)"
for dir in $dirs; do
base="${dir##*/}"
if [ -d "$dest/$base" ]; then
case "$dir" in
*$GO_BUILD_DEPENDS_SRC/$GO_PKG)
log "$GO_PKG is already installed. Please check for circular dependencies."
;;
*)
link_contents "$src/$base" "$dest/$base"
;;
esac
else
log "...${src#$GO_BUILD_DEPENDS_SRC}/$base"
ln -sf "$src/$base" "$dest/$base"
fi
done
return 0
}
configure() {
# shellcheck disable=SC2039
local files code testdata gomod pattern extra IFS file dest
cd "$BUILD_DIR" || return 1
files="$(find ./ -path "*/.*" -prune -o -not -type d -print)"
if [ "$GO_INSTALL_ALL" != 1 ]; then
code="$(printf '%s\n' "$files" | grep '\.\(c\|cc\|cpp\|go\|h\|hh\|hpp\|proto\|s\)$')"
testdata="$(printf '%s\n' "$files" | grep '/testdata/')"
gomod="$(printf '%s\n' "$files" | grep '/go\.\(mod\|sum\|work\)$')"
for pattern in $GO_INSTALL_EXTRA; do
extra="$(printf '%s\n' "$extra"; printf '%s\n' "$files" | grep -e "$pattern")"
done
files="$(printf '%s\n%s\n%s\n%s\n' "$code" "$testdata" "$gomod" "$extra" | grep -v '^[[:space:]]*$' | sort -u)"
fi
IFS="$nl"
log "Copying files from $BUILD_DIR into $GO_BUILD_DIR/src/$GO_PKG"
mkdir -p "$GO_BUILD_DIR/src"
for file in $files; do
log "${file#./}"
dest="$GO_BUILD_DIR/src/$GO_PKG/${file#./}"
mkdir -p "${dest%/*}"
cp -fpR "$file" "$dest"
done
log
if [ "$GO_SOURCE_ONLY" != 1 ]; then
if [ -d "$GO_BUILD_DEPENDS_SRC" ]; then
log "Symlinking directories from $GO_BUILD_DEPENDS_SRC into $GO_BUILD_DIR/src"
link_contents "$GO_BUILD_DEPENDS_SRC" "$GO_BUILD_DIR/src"
else
log "$GO_BUILD_DEPENDS_SRC does not exist, skipping symlinks"
fi
else
log "Not building binaries, skipping symlinks"
fi
log
return 0
}
build() {
# shellcheck disable=SC2039
local modargs pattern targets retval
cd "$GO_BUILD_DIR" || return 1
if [ -f "$BUILD_DIR/go.mod" ] ; then
mkdir -p "$GO_MOD_CACHE_DIR"
modargs="$GO_MOD_ARGS"
fi
log "Finding targets"
# shellcheck disable=SC2086
targets="$(go list $modargs $GO_BUILD_PKG)"
for pattern in $GO_EXCLUDES; do
targets="$(printf '%s\n' "$targets" | grep -v "$pattern")"
done
log
if [ "$GO_GO_GENERATE" = 1 ]; then
log "Calling go generate"
# shellcheck disable=SC2086
GOOS='' GOARCH='' GO386='' GOARM='' GOMIPS='' GOMIPS64='' \
go generate -v $targets
log
fi
if [ "$GO_SOURCE_ONLY" = 1 ]; then
return 0
fi
log "Building targets"
mkdir -p "$GO_BUILD_DIR/bin" "$GO_BUILD_CACHE_DIR"
# shellcheck disable=SC2086
go install $modargs "$@" $targets
retval="$?"
log
if [ "$retval" -eq 0 ] && [ -z "$(find "$GO_BUILD_BIN_DIR" -maxdepth 0 -type d -not -empty 2>/dev/null)" ]; then
log_error "No binaries were built"
retval=1
fi
if [ "$retval" -ne 0 ]; then
cache_cleanup
fi
return "$retval"
}
install_bin() {
# shellcheck disable=SC2039
local dest="$1"
install -d -m0755 "$dest/$GO_INSTALL_BIN_PATH"
install -m0755 "$GO_BUILD_BIN_DIR"/* "$dest/$GO_INSTALL_BIN_PATH/"
}
install_src() {
# shellcheck disable=SC2039
local dest="$1" dir="${GO_PKG%/*}"
install -d -m0755 "$dest/$GO_BUILD_DEPENDS_PATH/src/$dir"
cp -fpR "$GO_BUILD_DIR/src/$GO_PKG" "$dest/$GO_BUILD_DEPENDS_PATH/src/$dir/"
}
cache_cleanup() {
if ! [ -d "$GO_MOD_CACHE_DIR" ]; then
return 0
fi
# in case go is called without -modcacherw
find "$GO_MOD_CACHE_DIR" -type d -not -perm -u+w -exec chmod u+w '{}' +
if [ -n "$CONFIG_GOLANG_MOD_CACHE_WORLD_READABLE" ]; then
find "$GO_MOD_CACHE_DIR" -type d -not -perm -go+rx -exec chmod go+rx '{}' +
find "$GO_MOD_CACHE_DIR" -not -type d -not -perm -go+r -exec chmod go+r '{}' +
fi
return 0
}
if [ "$#" -lt 1 ]; then
log_error "Missing command"
exit 1
fi
command="$1"
shift 1
case "$command" in
configure)
configure
;;
build)
build "$@"
;;
install_bin)
install_bin "$@"
;;
install_src)
install_src "$@"
;;
cache_cleanup)
cache_cleanup
;;
*)
log_error "Invalid command \"$command\""
exit 1
;;
esac
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