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1echo_build_heading() {
2 if (( $# == 1 )); then
3 echo_colored "Building $1"
4 else
5 echo_colored "Building $1 ($2)"
6 fi
7}
8
9build_lib() {
10 lib_src=$1
11 echo_build_heading $lib_src ${libName}
12
13 noisily rustc \
14 --crate-name $CRATE_NAME \
15 $lib_src \
16 --out-dir target/lib \
17 -L dependency=target/deps \
18 --cap-lints allow \
19 $LINK \
20 $EXTRA_LINK_ARGS \
21 $EXTRA_LINK_ARGS_LIB \
22 $LIB_RUSTC_OPTS \
23 $BUILD_OUT_DIR \
24 $EXTRA_BUILD \
25 $EXTRA_FEATURES \
26 $EXTRA_RUSTC_FLAGS \
27 --color $colors
28
29 EXTRA_LIB=" --extern $CRATE_NAME=target/lib/lib$CRATE_NAME-$metadata.rlib"
30 if [ -e target/deps/lib$CRATE_NAME-$metadata$LIB_EXT ]; then
31 EXTRA_LIB="$EXTRA_LIB --extern $CRATE_NAME=target/lib/lib$CRATE_NAME-$metadata$LIB_EXT"
32 fi
33}
34
35build_bin() {
36 local crate_name=$1
37 local crate_name_=$(echo $crate_name | tr '-' '_')
38 local main_file=""
39
40 if [[ ! -z $2 ]]; then
41 main_file=$2
42 fi
43 echo_build_heading $@
44 noisily rustc \
45 --crate-name $crate_name_ \
46 $main_file \
47 --crate-type bin \
48 $BIN_RUSTC_OPTS \
49 --out-dir target/bin \
50 -L dependency=target/deps \
51 $LINK \
52 $EXTRA_LINK_ARGS \
53 $EXTRA_LINK_ARGS_BINS \
54 $EXTRA_LIB \
55 --cap-lints allow \
56 $BUILD_OUT_DIR \
57 $EXTRA_BUILD \
58 $EXTRA_FEATURES \
59 $EXTRA_RUSTC_FLAGS \
60 --color ${colors} \
61
62 if [ "$crate_name_" != "$crate_name" ]; then
63 if [ -f "target/bin/$crate_name_.wasm" ]; then
64 mv target/bin/$crate_name_.wasm target/bin/$crate_name.wasm
65 else
66 mv target/bin/$crate_name_ target/bin/$crate_name
67 fi
68 fi
69}
70
71build_lib_test() {
72 local file="$1"
73 EXTRA_RUSTC_FLAGS="--test $EXTRA_RUSTC_FLAGS" build_lib "$1" "$2"
74}
75
76build_bin_test() {
77 local crate="$1"
78 local file="$2"
79 EXTRA_RUSTC_FLAGS="--test $EXTRA_RUSTC_FLAGS" build_bin "$1" "$2"
80}
81
82build_bin_test_file() {
83 local file="$1"
84 local derived_crate_name="${file//\//_}"
85 # Make sure to strip the top level `tests` directory: see #204051. Note that
86 # a forward slash has now become an underscore due to the substitution
87 # above.
88 derived_crate_name=${derived_crate_name#"tests_"}
89 derived_crate_name="${derived_crate_name%.rs}"
90 build_bin_test "$derived_crate_name" "$file"
91}
92
93# Add additional link options that were provided by the build script.
94setup_link_paths() {
95 EXTRA_LIB=""
96 if [[ -e target/link_ ]]; then
97 EXTRA_BUILD="$(cat target/link_) $EXTRA_BUILD"
98 fi
99
100 echo "$EXTRA_LINK_SEARCH" | while read i; do
101 if [[ ! -z "$i" ]]; then
102 for library in $i; do
103 echo "-L $library" >> target/link
104 L=$(echo $library | sed -e "s#$(pwd)/target/build#$lib/lib#")
105 echo "-L $L" >> target/link.final
106 done
107 fi
108 done
109 echo "$EXTRA_LINK_LIBS" | while read i; do
110 if [[ ! -z "$i" ]]; then
111 for library in $i; do
112 echo "-l $library" >> target/link
113 done
114 fi
115 done
116
117 if [[ -e target/link ]]; then
118 tr '\n' ' ' < target/link > target/link_
119 LINK=$(cat target/link_)
120 fi
121
122 # Add "rustc-cdylib-link-arg" as linker arguments
123 # https://doc.rust-lang.org/cargo/reference/build-scripts.html#rustc-cdylib-link-arg
124 if [[ -n "$CRATE_TYPE_IS_CDYLIB" ]]; then
125 EXTRA_BUILD+=" $EXTRA_CDYLIB_LINK_ARGS"
126 fi
127}
128
129search_for_bin_path() {
130 # heuristic to "guess" the correct source file as found in cargo:
131 # https://github.com/rust-lang/cargo/blob/90fc9f620190d5fa3c80b0c8c65a1e1361e6b8ae/src/cargo/util/toml/targets.rs#L308-L325
132
133 BIN_NAME=$1
134 BIN_NAME_=$(echo $BIN_NAME | tr '-' '_')
135
136 # the first two cases are the "new" default IIRC
137 FILES=( "src/bin/$BIN_NAME.rs" "src/bin/$BIN_NAME/main.rs" "src/bin/$BIN_NAME_.rs" "src/bin/$BIN_NAME_/main.rs" "src/bin/main.rs" "src/main.rs" )
138
139 if ! [ -e "$LIB_PATH" -o -e src/lib.rs -o -e "src/$LIB_NAME.rs" ]; then
140 # if this is not a library the following path is also valid
141 FILES=( "src/$BIN_NAME.rs" "src/$BIN_NAME_.rs" "${FILES[@]}" )
142 fi
143
144 for file in "${FILES[@]}";
145 do
146 echo "checking file $file"
147 # first file that exists wins
148 if [[ -e "$file" ]]; then
149 BIN_PATH="$file"
150 break
151 fi
152 done
153
154 if [[ -z "$BIN_PATH" ]]; then
155 echo_error "ERROR: failed to find file for binary target: $BIN_NAME" >&2
156 exit 1
157 fi
158}
159
160# Extracts cargo_toml_path of the matching crate.
161matching_cargo_toml_path() {
162 local manifest_path="$1"
163 local expected_crate_name="$2"
164
165 # If the Cargo.toml is not a workspace root,
166 # it will only contain one package in ".packages"
167 # because "--no-deps" suppressed dependency resolution.
168 #
169 # But to make it more general, we search for a matching
170 # crate in all packages and use the manifest path that
171 # is referenced there.
172 cargo metadata --no-deps --format-version 1 \
173 --manifest-path "$manifest_path" \
174 | jq -r '.packages[]
175 | select( .name == "'$expected_crate_name'")
176 | .manifest_path'
177}
178
179# Find a Cargo.toml in the current or any sub directory
180# with a matching crate name.
181matching_cargo_toml_dir() {
182 local expected_crate_name="$1"
183
184 find -L -name Cargo.toml | sort | while read manifest_path; do
185 echo "...checking manifest_path $manifest_path" >&2
186 local matching_path="$(matching_cargo_toml_path "$manifest_path" "$expected_crate_name")"
187 if [ -n "${matching_path}" ]; then
188 echo "$(dirname $matching_path)"
189 break
190 fi
191 done
192}