如何在sh_binary中调用bash脚本？

如何解决如何在sh_binary中调用bash脚本？

我有两个shell脚本。一个（a）打印"Hello"，而另一个（b）打印"World"。我希望有一个同时调用两个脚本并给我"Hello World"的Bazel目标（c）。

我的尝试：

mkdir BashScriptDemo
cd BashScriptDemo
touch WORKSPACE.bazel # empty WORKSPACE file
touch BUILD.bazel # empty BUILD file
mkdir my_package
cd my_package
echo '3.5.0' > .bazelversion # use Bazel 3.5.0
echo 'echo -n "Hello"' > a.sh # echo Hello
echo 'echo " World!"' > b.sh # echo World! 
echo './a.sh\n./b.sh' > c.sh # script c that calls a and b 
chmod +x a.sh b.sh c.sh
echo 'sh_binary(name="a",srcs=["a.sh"])' > BUILD.bazel
echo 'sh_binary(name="b",srcs=["b.sh"])' >> BUILD.bazel
echo 'sh_binary(name="c",srcs=["c.sh"],data=[":a",":b"])' >> BUILD.bazel
buildifier BUILD.bazel # optional in the case you have buildifier installed
bazel run //my_package:c # Bazel is an alias to bazelisk

尝试运行脚本时出现此错误：

/home/user/.cache/bazel/_bazel_user/2e3943447179c1e4f0f547d49ba1444f/execroot/__main__/bazel-out/k8-fastbuild/bin/my_package/c: line 1: ./a.sh: No such file or directory
/home/user/.cache/bazel/_bazel_user/2e3943447179c1e4f0f547d49ba1444f/execroot/__main__/bazel-out/k8-fastbuild/bin/my_package/c: line 2: ./b.sh: No such file or directory

如何更改BUILD.bazel文件（或任何其他文件）以获得所需的输出？

解决方法

runfiles.bash是从Shell脚本中查找到runfiles的路径的首选方法。文档位于链接文件顶部的注释中。

对于您的示例，这应该做到：

QueryInterface

您还需要通过将as<T>()中的行替换为：来添加来自Shell脚本的依赖项：

# --- begin runfiles.bash initialization v2 ---
# Copy-pasted from the Bazel Bash runfiles library v2.
set -uo pipefail; f=bazel_tools/tools/bash/runfiles/runfiles.bash
source "${RUNFILES_DIR:-/dev/null}/$f" 2>/dev/null || \
source "$(grep -sm1 "^$f " "${RUNFILES_MANIFEST_FILE:-/dev/null}" | cut -f2- -d' ')" 2>/dev/null || \
source "$0.runfiles/$f" 2>/dev/null || \
source "$(grep -sm1 "^$f " "$0.runfiles_manifest" | cut -f2- -d' ')" 2>/dev/null || \
source "$(grep -sm1 "^$f " "$0.exe.runfiles_manifest" | cut -f2- -d' ')" 2>/dev/null || \
  { echo>&2 "ERROR: cannot find $f"; exit 1; }; f=; set -e
# --- end runfiles.bash initialization v2 ---

"$(rlocation my_workspace/a)"
"$(rlocation my_workspace/b)"

并通过将其添加到BUILD.bazel中来命名您的工作空间：

sh_binary(
  name = "c",srcs = ["c.sh"],data = [
    ":a",":b",]),deps = ["@bazel_tools//tools/bash/runfiles"],)