buck: add some BUCK files for jj crates

Summary: Now we can build the top-level with:

    $ buck2 build //:jj

From anywhere in the repository. `//...` will build all `jj-*` related code,
since all non-first-party code is separated into different cells.

Signed-off-by: Austin Seipp <[email protected]>
Change-Id: I93fa821894f9e13e061d0cf4f8030b3a

BUCK

@@ -0,0 +1,5 @@
+
+alias(
+    name = 'jj',
+    actual = "//cli:jj",
+)

cli/BUCK

@@ -0,0 +1,100 @@
+
+alias(
+    # NOTE: default target for this package
+    name = 'cli',
+    actual = ':jj',
+    visibility = [ 'PUBLIC' ],
+)
+
+rust_binary(
+    name = 'jj',
+    srcs = ['src/main.rs'],
+    edition = "2021",
+    visibility = [ "PUBLIC" ],
+    rustc_flags = [
+        '--cfg=buck_build',
+    ],
+    features = [
+        "watchman",
+    ],
+    linker_flags = [ '-lstdc++' ], # XXX FIXME (aseipp): should be implied by `bssl`
+    env = {
+        'JJ_VERSION': '0.17.0',
+    },
+    deps = [
+        ":jj-cli",
+    ],
+)
+
+rust_library(
+    name = "jj-cli",
+    srcs = glob([
+        "src/**/*.rs",
+        "src/**/*.toml",
+        "src/**/*.json",
+        "src/**/*.pest",
+    ], exclude = [
+        "**/main.rs"
+    ]),
+
+    edition = "2021",
+    visibility = [ "PUBLIC" ],
+    rustc_flags = [
+        '--cfg=buck_build',
+    ],
+    features = [
+        "watchman",
+    ],
+
+    deps = [
+        # first-party dependencies
+        "//lib:jj-lib",
+    ] + [
+        # third-party dependencies
+        "third-party//rust:chrono",
+        "third-party//rust:clap",
+        "third-party//rust:clap-markdown",
+        "third-party//rust:clap_complete",
+        "third-party//rust:clap_complete_nushell",
+        "third-party//rust:clap_mangen",
+        "third-party//rust:config",
+        "third-party//rust:criterion",
+        "third-party//rust:crossterm",
+        "third-party//rust:dirs",
+        "third-party//rust:esl01-renderdag",
+        "third-party//rust:futures",
+        "third-party//rust:git2",
+        "third-party//rust:gix",
+        "third-party//rust:hex",
+        "third-party//rust:indexmap",
+        "third-party//rust:itertools",
+        "third-party//rust:maplit",
+        "third-party//rust:minus",
+        "third-party//rust:once_cell",
+        "third-party//rust:pest",
+        "third-party//rust:pest_derive",
+        "third-party//rust:pollster",
+        "third-party//rust:regex",
+        "third-party//rust:rpassword",
+        "third-party//rust:scm-record",
+        "third-party//rust:serde",
+        "third-party//rust:slab",
+        "third-party//rust:strsim",
+        "third-party//rust:tempfile",
+        "third-party//rust:textwrap",
+        "third-party//rust:thiserror",
+        "third-party//rust:timeago",
+        "third-party//rust:toml_edit",
+        "third-party//rust:tracing",
+        "third-party//rust:tracing-chrome",
+        "third-party//rust:tracing-subscriber",
+        "third-party//rust:unicode-width",
+
+        # platform-specific dependencies
+    ] + select({
+        "config//os:windows": [],
+        "DEFAULT": [
+            "third-party//rust:libc",
+        ],
+    })
+)

lib/BUCK

@@ -0,0 +1,88 @@
+
+alias(
+    # NOTE: default target for this package
+    name = 'lib',
+    actual = ':jj-lib',
+    visibility = [ 'PUBLIC' ],
+)
+
+filegroup(
+    name = 'protos.pb',
+    srcs = glob(['src/protos/*.proto']),
+    visibility = [ '//lib/...' ],
+)
+
+rust_library(
+    name = "jj-lib",
+    srcs = glob([
+        "src/**/*.pest",
+        "src/**/*.rs",
+    ], exclude = [
+        "src/protos/*.rs"
+    ]),
+    mapped_srcs = {
+        "//lib/gen-protos:protos.rs": "src/protos",
+    },
+
+    edition = "2021",
+    visibility = [ "PUBLIC" ],
+    rustc_flags = [
+        '--cfg=buck_build',
+    ],
+    features = [
+        "watchman",
+    ],
+    deps = [
+        # first-party dependencies
+        "//lib/proc-macros:jj-lib-proc-macros",
+    ] + [
+        # third-party dependencies
+        "third-party//rust:async-trait",
+        "third-party//rust:backoff",
+        "third-party//rust:blake2",
+        "third-party//rust:bytes",
+        "third-party//rust:chrono",
+        "third-party//rust:config",
+        "third-party//rust:digest",
+        "third-party//rust:either",
+        "third-party//rust:futures",
+        "third-party//rust:git2",
+        "third-party//rust:gix",
+        "third-party//rust:glob",
+        "third-party//rust:hex",
+        "third-party//rust:ignore",
+        "third-party//rust:itertools",
+        "third-party//rust:maplit",
+        "third-party//rust:once_cell",
+        "third-party//rust:pest",
+        "third-party//rust:pest_derive",
+        "third-party//rust:pollster",
+        "third-party//rust:prost",
+        "third-party//rust:rand",
+        "third-party//rust:rand_chacha",
+        "third-party//rust:rayon",
+        "third-party//rust:ref-cast",
+        "third-party//rust:regex",
+        "third-party//rust:serde",
+        "third-party//rust:serde_json",
+        "third-party//rust:smallvec",
+        "third-party//rust:strsim",
+        "third-party//rust:tempfile",
+        "third-party//rust:thiserror",
+        "third-party//rust:tokio",
+        "third-party//rust:tracing",
+        "third-party//rust:watchman_client",
+        "third-party//rust:whoami",
+        "third-party//rust:zstd",
+
+        # platform-specific dependencies
+    ] + select({
+        "config//os:windows": [
+            "third-party//rust:winreg",
+        ],
+        "config//os:linux": [
+            "third-party//rust:rustix",
+        ],
+        "DEFAULT": [],
+    })
+)

lib/gen-protos/BUCK

@@ -0,0 +1,21 @@
+
+rust_binary(
+    name = 'gen-protos',
+    srcs = ['src/main.rs'],
+    edition = "2021",
+    visibility = [ ],
+    rustc_flags = [
+        '--cfg=buck_build',
+    ],
+    deps = [ 'third-party//rust:prost-build' ],
+    env = {
+        'CARGO_MANIFEST_DIR': '$(location //lib:protos.pb)',
+    },
+)
+
+genrule(
+    name = 'protos.rs',
+    cmd = "$(exe :gen-protos)",
+    out = ".",
+    visibility = [ '//lib/...' ],
+)

lib/proc-macros/BUCK

@@ -0,0 +1,23 @@
+
+alias(
+    # NOTE: default target for this package
+    name = 'proc-macros',
+    actual = ':jj-lib-proc-macros',
+    visibility = [ 'PUBLIC' ],
+)
+
+rust_library(
+    name = 'jj-lib-proc-macros',
+    srcs = glob(["src/**/*.rs"]),
+    edition = "2021",
+    visibility = [ "PUBLIC" ],
+    proc_macro = True,
+    rustc_flags = [
+        '--cfg=buck_build',
+    ],
+    deps = [
+        'third-party//rust:proc-macro2',
+        'third-party//rust:quote',
+        'third-party//rust:syn',
+    ]
+)