Manipulate bazel BUILD rule base on current file. Support new/delete rule, add/remove dependency base on current line.

Need to install buildozer via following command:

go install github.com/bazelbuild/buildtools/buildozer@latest

• BzlNew will create new bazel rule base on current file. dependencies will be added
  • Will add public visibility when has !
• BzlDelete will delete current file and corresponding rule
• BzlAddDep will add dependency base on current line
• BzlRmDep will delete current line and corresponding dependency
• BzlLoadDeps will load all dependencies base on include/import lines

The default dependency is decided via file path and filename. For example, #include "/path/to/file.h" will be recognized as dependency //path/to:file. There could be custom rule for the filetype via custom_rule handler.

Some commands will do the action base on filetype. Currenttly supported filetypes:

• cpp
• proto

To support new filetypes, take a look at ftplugin/proto.vim.

Prepare the demo:

mkdir /tmp/demo
cd /tmp/demo

mkdir -p cpp
touch cpp/hello.h
touch cpp/main.cc

Open file cpp/hello.h, execute BzlNew. File cpp/BUILD will be built with following content:

cc_library(
    name = "hello",
    srcs = ["hello.h"],
)

Write following content into file cpp/main.cc:

#include "cpp/hello.h"

int main(int argc, char *argv[]) {
  return 0;
}

Execute BzlNew, cpp/BUILD will become:

cc_library(
    name = "hello",
    srcs = ["hello.h"],
)

cc_binary(
    name = "main",
    srcs = ["main.cc"],
    stamp = 1,
    deps = [":hello"],
)

Open file cpp/hello.h, execute BzlDelete. hello.h will be deleted and BUILD file becomes:

cc_binary(
    name = "main",
    srcs = ["main.cc"],
    stamp = 1,
    deps = [":hello"],
)

Open file cpp/main.cc, go to line #include "cpp/hello.h", execute BzlRmDep. The line will be deleted and BUILD becomes:

cc_binary(
    name = "main",
    srcs = ["main.cc"],
    stamp = 1,
)