From 75124670d63cb3c392aca44a4230d88f9d7d2b02 Mon Sep 17 00:00:00 2001
From: Rob Hand <146272+sinon@users.noreply.github.com>
Date: Mon, 15 Sep 2025 22:15:20 +0100
Subject: [PATCH] Initial buck2 adoption, get CLI building

---
 .buckconfig                                   |  26 +
 .buckroot                                     |   0
 .gitignore                                    |   4 +-
 BUCK                                          |  11 +
 crates/pngme/BUCK                             |  12 +
 third-party/rust/BUCK                         | 722 ++++++++++++++++++
 third-party/rust/Cargo.lock                   | 312 ++++++++
 third-party/rust/Cargo.toml                   |  31 +
 .../rust/fixups/proc-macro2/fixups.toml       |   1 +
 .../fixups/windows_x86_64_gnu/fixups.toml     |   1 +
 .../fixups/windows_x86_64_msvc/fixups.toml    |   1 +
 third-party/rust/reindeer.toml                |  24 +
 toolchains/BUCK                               |   5 +
 13 files changed, 1149 insertions(+), 1 deletion(-)
 create mode 100644 .buckconfig
 create mode 100644 .buckroot
 create mode 100644 BUCK
 create mode 100644 crates/pngme/BUCK
 create mode 100644 third-party/rust/BUCK
 create mode 100644 third-party/rust/Cargo.lock
 create mode 100644 third-party/rust/Cargo.toml
 create mode 100644 third-party/rust/fixups/proc-macro2/fixups.toml
 create mode 100644 third-party/rust/fixups/windows_x86_64_gnu/fixups.toml
 create mode 100644 third-party/rust/fixups/windows_x86_64_msvc/fixups.toml
 create mode 100644 third-party/rust/reindeer.toml
 create mode 100644 toolchains/BUCK

diff --git a/.buckconfig b/.buckconfig
new file mode 100644
index 0000000..0b3f81e
--- /dev/null
+++ b/.buckconfig
@@ -0,0 +1,26 @@
+[cells]
+  root = .
+  prelude = prelude
+  toolchains = toolchains
+  none = none
+
+[cell_aliases]
+  config = prelude
+  ovr_config = prelude
+  fbcode = none
+  fbsource = none
+  fbcode_macros = none
+  buck = none
+
+# Uses a copy of the prelude bundled with the buck2 binary. You can alternatively delete this
+# section and vendor a copy of the prelude to the `prelude` directory of your project.
+[external_cells]
+  prelude = bundled
+
+[parser]
+  target_platform_detector_spec = target:root//...->prelude//platforms:default \
+    target:prelude//...->prelude//platforms:default \
+    target:toolchains//...->prelude//platforms:default
+
+[build]
+  execution_platforms = prelude//platforms:default
diff --git a/.buckroot b/.buckroot
new file mode 100644
index 0000000..e69de29
diff --git a/.gitignore b/.gitignore
index 579fd5a..cc1a439 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,4 +19,6 @@ target/
 
 .venv/
 __pycache__/
-.pytest_cache/
\ No newline at end of file
+.pytest_cache/
+
+buck-out/
\ No newline at end of file
diff --git a/BUCK b/BUCK
new file mode 100644
index 0000000..7bad8ad
--- /dev/null
+++ b/BUCK
@@ -0,0 +1,11 @@
+# A list of available rules and their signatures can be found here: https://buck2.build/docs/prelude/globals/
+
+rust_binary(
+    name = "cli",
+    srcs = glob(["crates/pngme-cli/src/*.rs"]),
+    crate_root = "crates/pngme-cli/src/main.rs",
+    deps = [
+        "root//crates/pngme:library",
+        "//third-party/rust:clap",
+    ],
+)
\ No newline at end of file
diff --git a/crates/pngme/BUCK b/crates/pngme/BUCK
new file mode 100644
index 0000000..b9afa1d
--- /dev/null
+++ b/crates/pngme/BUCK
@@ -0,0 +1,12 @@
+rust_library(
+    name = "library",
+    crate = "pngme_lib",
+    srcs = glob(["src/**/*.rs"]),
+    crate_root = "src/lib.rs",
+    visibility = ["PUBLIC"],
+    deps = [
+        "//third-party/rust:snafu",
+        "//third-party/rust:nom",
+        "//third-party/rust:crc",
+    ],
+)
\ No newline at end of file
diff --git a/third-party/rust/BUCK b/third-party/rust/BUCK
new file mode 100644
index 0000000..9dc8d57
--- /dev/null
+++ b/third-party/rust/BUCK
@@ -0,0 +1,722 @@
+##
+## @generated by `reindeer buckify`
+## Do not edit by hand.
+##
+
+load("@prelude//rust:cargo_buildscript.bzl", "buildscript_run")
+load("@prelude//rust:cargo_package.bzl", "cargo")
+
+http_archive(
+    name = "anstream-0.6.20.crate",
+    sha256 = "3ae563653d1938f79b1ab1b5e668c87c76a9930414574a6583a7b7e11a8e6192",
+    strip_prefix = "anstream-0.6.20",
+    urls = ["https://static.crates.io/crates/anstream/0.6.20/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "anstream-0.6.20",
+    srcs = [":anstream-0.6.20.crate"],
+    crate = "anstream",
+    crate_root = "anstream-0.6.20.crate/src/lib.rs",
+    edition = "2021",
+    features = [
+        "auto",
+        "default",
+        "wincon",
+    ],
+    platform = {
+        "windows-gnu": dict(
+            deps = [":anstyle-wincon-3.0.10"],
+        ),
+        "windows-msvc": dict(
+            deps = [":anstyle-wincon-3.0.10"],
+        ),
+    },
+    visibility = [],
+    deps = [
+        ":anstyle-1.0.11",
+        ":anstyle-parse-0.2.7",
+        ":anstyle-query-1.1.4",
+        ":colorchoice-1.0.4",
+        ":is_terminal_polyfill-1.70.1",
+        ":utf8parse-0.2.2",
+    ],
+)
+
+http_archive(
+    name = "anstyle-1.0.11.crate",
+    sha256 = "862ed96ca487e809f1c8e5a8447f6ee2cf102f846893800b20cebdf541fc6bbd",
+    strip_prefix = "anstyle-1.0.11",
+    urls = ["https://static.crates.io/crates/anstyle/1.0.11/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "anstyle-1.0.11",
+    srcs = [":anstyle-1.0.11.crate"],
+    crate = "anstyle",
+    crate_root = "anstyle-1.0.11.crate/src/lib.rs",
+    edition = "2021",
+    features = [
+        "default",
+        "std",
+    ],
+    visibility = [],
+)
+
+http_archive(
+    name = "anstyle-parse-0.2.7.crate",
+    sha256 = "4e7644824f0aa2c7b9384579234ef10eb7efb6a0deb83f9630a49594dd9c15c2",
+    strip_prefix = "anstyle-parse-0.2.7",
+    urls = ["https://static.crates.io/crates/anstyle-parse/0.2.7/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "anstyle-parse-0.2.7",
+    srcs = [":anstyle-parse-0.2.7.crate"],
+    crate = "anstyle_parse",
+    crate_root = "anstyle-parse-0.2.7.crate/src/lib.rs",
+    edition = "2021",
+    features = [
+        "default",
+        "utf8",
+    ],
+    visibility = [],
+    deps = [":utf8parse-0.2.2"],
+)
+
+http_archive(
+    name = "anstyle-query-1.1.4.crate",
+    sha256 = "9e231f6134f61b71076a3eab506c379d4f36122f2af15a9ff04415ea4c3339e2",
+    strip_prefix = "anstyle-query-1.1.4",
+    urls = ["https://static.crates.io/crates/anstyle-query/1.1.4/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "anstyle-query-1.1.4",
+    srcs = [":anstyle-query-1.1.4.crate"],
+    crate = "anstyle_query",
+    crate_root = "anstyle-query-1.1.4.crate/src/lib.rs",
+    edition = "2021",
+    platform = {
+        "windows-gnu": dict(
+            deps = [":windows-sys-0.60.2"],
+        ),
+        "windows-msvc": dict(
+            deps = [":windows-sys-0.60.2"],
+        ),
+    },
+    visibility = [],
+)
+
+http_archive(
+    name = "anstyle-wincon-3.0.10.crate",
+    sha256 = "3e0633414522a32ffaac8ac6cc8f748e090c5717661fddeea04219e2344f5f2a",
+    strip_prefix = "anstyle-wincon-3.0.10",
+    urls = ["https://static.crates.io/crates/anstyle-wincon/3.0.10/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "anstyle-wincon-3.0.10",
+    srcs = [":anstyle-wincon-3.0.10.crate"],
+    crate = "anstyle_wincon",
+    crate_root = "anstyle-wincon-3.0.10.crate/src/lib.rs",
+    edition = "2021",
+    visibility = [],
+    deps = [
+        ":anstyle-1.0.11",
+        ":once_cell_polyfill-1.70.1",
+        ":windows-sys-0.60.2",
+    ],
+)
+
+alias(
+    name = "clap",
+    actual = ":clap-4.5.47",
+    visibility = ["PUBLIC"],
+)
+
+http_archive(
+    name = "clap-4.5.47.crate",
+    sha256 = "7eac00902d9d136acd712710d71823fb8ac8004ca445a89e73a41d45aa712931",
+    strip_prefix = "clap-4.5.47",
+    urls = ["https://static.crates.io/crates/clap/4.5.47/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "clap-4.5.47",
+    srcs = [":clap-4.5.47.crate"],
+    crate = "clap",
+    crate_root = "clap-4.5.47.crate/src/lib.rs",
+    edition = "2021",
+    features = [
+        "color",
+        "default",
+        "derive",
+        "error-context",
+        "help",
+        "std",
+        "suggestions",
+        "usage",
+    ],
+    visibility = [],
+    deps = [
+        ":clap_builder-4.5.47",
+        ":clap_derive-4.5.47",
+    ],
+)
+
+http_archive(
+    name = "clap_builder-4.5.47.crate",
+    sha256 = "2ad9bbf750e73b5884fb8a211a9424a1906c1e156724260fdae972f31d70e1d6",
+    strip_prefix = "clap_builder-4.5.47",
+    urls = ["https://static.crates.io/crates/clap_builder/4.5.47/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "clap_builder-4.5.47",
+    srcs = [":clap_builder-4.5.47.crate"],
+    crate = "clap_builder",
+    crate_root = "clap_builder-4.5.47.crate/src/lib.rs",
+    edition = "2021",
+    features = [
+        "color",
+        "error-context",
+        "help",
+        "std",
+        "suggestions",
+        "usage",
+    ],
+    visibility = [],
+    deps = [
+        ":anstream-0.6.20",
+        ":anstyle-1.0.11",
+        ":clap_lex-0.7.5",
+        ":strsim-0.11.1",
+    ],
+)
+
+http_archive(
+    name = "clap_derive-4.5.47.crate",
+    sha256 = "bbfd7eae0b0f1a6e63d4b13c9c478de77c2eb546fba158ad50b4203dc24b9f9c",
+    strip_prefix = "clap_derive-4.5.47",
+    urls = ["https://static.crates.io/crates/clap_derive/4.5.47/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "clap_derive-4.5.47",
+    srcs = [":clap_derive-4.5.47.crate"],
+    crate = "clap_derive",
+    crate_root = "clap_derive-4.5.47.crate/src/lib.rs",
+    edition = "2021",
+    features = ["default"],
+    proc_macro = True,
+    visibility = [],
+    deps = [
+        ":heck-0.5.0",
+        ":proc-macro2-1.0.101",
+        ":quote-1.0.40",
+        ":syn-2.0.106",
+    ],
+)
+
+http_archive(
+    name = "clap_lex-0.7.5.crate",
+    sha256 = "b94f61472cee1439c0b966b47e3aca9ae07e45d070759512cd390ea2bebc6675",
+    strip_prefix = "clap_lex-0.7.5",
+    urls = ["https://static.crates.io/crates/clap_lex/0.7.5/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "clap_lex-0.7.5",
+    srcs = [":clap_lex-0.7.5.crate"],
+    crate = "clap_lex",
+    crate_root = "clap_lex-0.7.5.crate/src/lib.rs",
+    edition = "2021",
+    visibility = [],
+)
+
+http_archive(
+    name = "colorchoice-1.0.4.crate",
+    sha256 = "b05b61dc5112cbb17e4b6cd61790d9845d13888356391624cbe7e41efeac1e75",
+    strip_prefix = "colorchoice-1.0.4",
+    urls = ["https://static.crates.io/crates/colorchoice/1.0.4/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "colorchoice-1.0.4",
+    srcs = [":colorchoice-1.0.4.crate"],
+    crate = "colorchoice",
+    crate_root = "colorchoice-1.0.4.crate/src/lib.rs",
+    edition = "2021",
+    visibility = [],
+)
+
+alias(
+    name = "crc",
+    actual = ":crc-3.3.0",
+    visibility = ["PUBLIC"],
+)
+
+http_archive(
+    name = "crc-3.3.0.crate",
+    sha256 = "9710d3b3739c2e349eb44fe848ad0b7c8cb1e42bd87ee49371df2f7acaf3e675",
+    strip_prefix = "crc-3.3.0",
+    urls = ["https://static.crates.io/crates/crc/3.3.0/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "crc-3.3.0",
+    srcs = [":crc-3.3.0.crate"],
+    crate = "crc",
+    crate_root = "crc-3.3.0.crate/src/lib.rs",
+    edition = "2021",
+    visibility = [],
+    deps = [":crc-catalog-2.4.0"],
+)
+
+http_archive(
+    name = "crc-catalog-2.4.0.crate",
+    sha256 = "19d374276b40fb8bbdee95aef7c7fa6b5316ec764510eb64b8dd0e2ed0d7e7f5",
+    strip_prefix = "crc-catalog-2.4.0",
+    urls = ["https://static.crates.io/crates/crc-catalog/2.4.0/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "crc-catalog-2.4.0",
+    srcs = [":crc-catalog-2.4.0.crate"],
+    crate = "crc_catalog",
+    crate_root = "crc-catalog-2.4.0.crate/src/lib.rs",
+    edition = "2018",
+    visibility = [],
+)
+
+http_archive(
+    name = "heck-0.5.0.crate",
+    sha256 = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea",
+    strip_prefix = "heck-0.5.0",
+    urls = ["https://static.crates.io/crates/heck/0.5.0/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "heck-0.5.0",
+    srcs = [":heck-0.5.0.crate"],
+    crate = "heck",
+    crate_root = "heck-0.5.0.crate/src/lib.rs",
+    edition = "2021",
+    visibility = [],
+)
+
+http_archive(
+    name = "is_terminal_polyfill-1.70.1.crate",
+    sha256 = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf",
+    strip_prefix = "is_terminal_polyfill-1.70.1",
+    urls = ["https://static.crates.io/crates/is_terminal_polyfill/1.70.1/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "is_terminal_polyfill-1.70.1",
+    srcs = [":is_terminal_polyfill-1.70.1.crate"],
+    crate = "is_terminal_polyfill",
+    crate_root = "is_terminal_polyfill-1.70.1.crate/src/lib.rs",
+    edition = "2021",
+    features = ["default"],
+    visibility = [],
+)
+
+http_archive(
+    name = "memchr-2.7.5.crate",
+    sha256 = "32a282da65faaf38286cf3be983213fcf1d2e2a58700e808f83f4ea9a4804bc0",
+    strip_prefix = "memchr-2.7.5",
+    urls = ["https://static.crates.io/crates/memchr/2.7.5/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "memchr-2.7.5",
+    srcs = [":memchr-2.7.5.crate"],
+    crate = "memchr",
+    crate_root = "memchr-2.7.5.crate/src/lib.rs",
+    edition = "2021",
+    features = [
+        "alloc",
+        "std",
+    ],
+    visibility = [],
+)
+
+http_archive(
+    name = "minimal-lexical-0.2.1.crate",
+    sha256 = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a",
+    strip_prefix = "minimal-lexical-0.2.1",
+    urls = ["https://static.crates.io/crates/minimal-lexical/0.2.1/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "minimal-lexical-0.2.1",
+    srcs = [":minimal-lexical-0.2.1.crate"],
+    crate = "minimal_lexical",
+    crate_root = "minimal-lexical-0.2.1.crate/src/lib.rs",
+    edition = "2018",
+    features = ["std"],
+    visibility = [],
+)
+
+alias(
+    name = "nom",
+    actual = ":nom-7.1.3",
+    visibility = ["PUBLIC"],
+)
+
+http_archive(
+    name = "nom-7.1.3.crate",
+    sha256 = "d273983c5a657a70a3e8f2a01329822f3b8c8172b73826411a55751e404a0a4a",
+    strip_prefix = "nom-7.1.3",
+    urls = ["https://static.crates.io/crates/nom/7.1.3/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "nom-7.1.3",
+    srcs = [":nom-7.1.3.crate"],
+    crate = "nom",
+    crate_root = "nom-7.1.3.crate/src/lib.rs",
+    edition = "2018",
+    features = [
+        "alloc",
+        "default",
+        "std",
+    ],
+    visibility = [],
+    deps = [
+        ":memchr-2.7.5",
+        ":minimal-lexical-0.2.1",
+    ],
+)
+
+http_archive(
+    name = "once_cell_polyfill-1.70.1.crate",
+    sha256 = "a4895175b425cb1f87721b59f0f286c2092bd4af812243672510e1ac53e2e0ad",
+    strip_prefix = "once_cell_polyfill-1.70.1",
+    urls = ["https://static.crates.io/crates/once_cell_polyfill/1.70.1/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "once_cell_polyfill-1.70.1",
+    srcs = [":once_cell_polyfill-1.70.1.crate"],
+    crate = "once_cell_polyfill",
+    crate_root = "once_cell_polyfill-1.70.1.crate/src/lib.rs",
+    edition = "2021",
+    features = ["default"],
+    visibility = [],
+)
+
+http_archive(
+    name = "proc-macro2-1.0.101.crate",
+    sha256 = "89ae43fd86e4158d6db51ad8e2b80f313af9cc74f5c0e03ccb87de09998732de",
+    strip_prefix = "proc-macro2-1.0.101",
+    urls = ["https://static.crates.io/crates/proc-macro2/1.0.101/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "proc-macro2-1.0.101",
+    srcs = [":proc-macro2-1.0.101.crate"],
+    crate = "proc_macro2",
+    crate_root = "proc-macro2-1.0.101.crate/src/lib.rs",
+    edition = "2021",
+    env = {
+        "OUT_DIR": "$(location :proc-macro2-1.0.101-build-script-run[out_dir])",
+    },
+    features = [
+        "default",
+        "proc-macro",
+    ],
+    rustc_flags = ["@$(location :proc-macro2-1.0.101-build-script-run[rustc_flags])"],
+    visibility = [],
+    deps = [":unicode-ident-1.0.19"],
+)
+
+cargo.rust_binary(
+    name = "proc-macro2-1.0.101-build-script-build",
+    srcs = [":proc-macro2-1.0.101.crate"],
+    crate = "build_script_build",
+    crate_root = "proc-macro2-1.0.101.crate/build.rs",
+    edition = "2021",
+    features = [
+        "default",
+        "proc-macro",
+    ],
+    visibility = [],
+)
+
+buildscript_run(
+    name = "proc-macro2-1.0.101-build-script-run",
+    package_name = "proc-macro2",
+    buildscript_rule = ":proc-macro2-1.0.101-build-script-build",
+    features = [
+        "default",
+        "proc-macro",
+    ],
+    version = "1.0.101",
+)
+
+http_archive(
+    name = "quote-1.0.40.crate",
+    sha256 = "1885c039570dc00dcb4ff087a89e185fd56bae234ddc7f056a945bf36467248d",
+    strip_prefix = "quote-1.0.40",
+    urls = ["https://static.crates.io/crates/quote/1.0.40/download"],
+    visibility = [],
+)
+
+cargo.rust_library(
+    name = "quote-1.0.40",
+    srcs = [":quote-1.0.40.crate"],
+    crate = "quote",
+    crate_root = "quote-1.0.40.crate/src/lib.rs",
+    edition = "2018",
+    features = [
+        "default",
+        "proc-macro",
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new file mode 100644
index 0000000..069c15c
--- /dev/null
+++ b/third-party/rust/Cargo.toml
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+
+# END: DEPENDENCIES
diff --git a/third-party/rust/fixups/proc-macro2/fixups.toml b/third-party/rust/fixups/proc-macro2/fixups.toml
new file mode 100644
index 0000000..89f3cd5
--- /dev/null
+++ b/third-party/rust/fixups/proc-macro2/fixups.toml
@@ -0,0 +1 @@
+buildscript.run = true
diff --git a/third-party/rust/fixups/windows_x86_64_gnu/fixups.toml b/third-party/rust/fixups/windows_x86_64_gnu/fixups.toml
new file mode 100644
index 0000000..e555b01
--- /dev/null
+++ b/third-party/rust/fixups/windows_x86_64_gnu/fixups.toml
@@ -0,0 +1 @@
+buildscript.run = false
diff --git a/third-party/rust/fixups/windows_x86_64_msvc/fixups.toml b/third-party/rust/fixups/windows_x86_64_msvc/fixups.toml
new file mode 100644
index 0000000..e555b01
--- /dev/null
+++ b/third-party/rust/fixups/windows_x86_64_msvc/fixups.toml
@@ -0,0 +1 @@
+buildscript.run = false
diff --git a/third-party/rust/reindeer.toml b/third-party/rust/reindeer.toml
new file mode 100644
index 0000000..705bf51
--- /dev/null
+++ b/third-party/rust/reindeer.toml
@@ -0,0 +1,24 @@
+# Reindeer configuration for rue
+
+# Build dependencies through http_archive downloaded from crates.io, rather than
+# vendoring sources into this repo.
+vendor = false
+
+# Parse Rust code to work out the precise set of source files for each crate.
+# This uses `srcfiles` which only works on Rust 2018 and without some macro
+# constructions. It works in almost all cases, but you may need to have a
+# fixups.toml adding extra srcs if it fails.
+precise_srcs = true
+
+# Include an explicit public top-level target which depends on all other library
+# targets, so that you can to a test/check build.
+include_top_level = true
+
+[buck]
+
+generated_file_header = """
+##
+## \u0040generated by `reindeer buckify`
+## Do not edit by hand.
+##
+"""
diff --git a/toolchains/BUCK b/toolchains/BUCK
new file mode 100644
index 0000000..b3ac5bc
--- /dev/null
+++ b/toolchains/BUCK
@@ -0,0 +1,5 @@
+load("@prelude//toolchains:demo.bzl", "system_demo_toolchains")
+
+# All the default toolchains, suitable for a quick demo or early prototyping.
+# Most real projects should copy/paste the implementation to configure them.
+system_demo_toolchains()
\ No newline at end of file