hgcli: add stub PyOxidizer project
Using commit c772a1379c3026314eda1c8ea244b86c0658951d of
PyOxidizer, I ran `pyoxidizer init-rust-project hgcli` to
create a stub Rust project. The only modifications I made from
what that command produced are:
* Update location of pyembed crate to PyOxidizer's Git repository.
* Removed some trailing whitespace from pyoxidizer.bzl
* Added auto-generated Cargo.lock file
Subsequent commits will modify the stub project to Mercurial's
needs.
Differential Revision: https://phab.mercurial-scm.org/D8350
--- a/rust/Cargo.toml Tue Mar 31 18:56:41 2020 -0700
+++ b/rust/Cargo.toml Tue Mar 31 19:07:36 2020 -0700
@@ -1,3 +1,3 @@
[workspace]
members = ["hg-core", "hg-cpython"]
-exclude = ["chg"]
+exclude = ["chg", "hgcli"]
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/rust/hgcli/.cargo/config Tue Mar 31 19:07:36 2020 -0700
@@ -0,0 +1,13 @@
+# By default Rust will not export dynamic symbols from built executables.
+# Python symbols need to be exported from executables in order for that
+# executable to load Python extension modules, which are shared libraries.
+# Otherwise, the extension module / shared library is unable to resolve
+# Python symbols. This file contains target-specific configuration
+# overrides to export dynamic symbols from executables.
+#
+# Ideally we would achieve this functionality via the build.rs build
+# script. But custom compiler flags via build scripts apparently only
+# support limited options.
+
+[target.x86_64-unknown-linux-gnu]
+rustflags = ["-C", "link-args=-Wl,-export-dynamic"]
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/rust/hgcli/Cargo.lock Tue Mar 31 19:07:36 2020 -0700
@@ -0,0 +1,359 @@
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+"checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
+"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/rust/hgcli/Cargo.toml Tue Mar 31 19:07:36 2020 -0700
@@ -0,0 +1,20 @@
+[package]
+name = "hgcli"
+version = "0.1.0"
+build = "build.rs"
+authors = ["Gregory Szorc <gregory.szorc@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+jemallocator-global = { version = "0.3", optional = true }
+pyembed = { git = "https://github.com/indygreg/PyOxidizer.git", rev = "c772a1379c3026314eda1c8ea244b86c0658951d", default-features=false }
+
+[features]
+default = ["build-mode-pyoxidizer-exe"]
+jemalloc = ["jemallocator-global", "pyembed/jemalloc"]
+build-mode-pyoxidizer-exe = ["pyembed/build-mode-pyoxidizer-exe"]
+build-mode-prebuilt-artifacts = ["pyembed/build-mode-prebuilt-artifacts"]
+cpython-link-unresolved-static = ["pyembed/cpython-link-unresolved-static"]
+cpython-link-default = ["pyembed/cpython-link-default"]
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/rust/hgcli/build.rs Tue Mar 31 19:07:36 2020 -0700
@@ -0,0 +1,16 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+/*! Build script to integrate PyOxidizer. */
+
+fn main() {
+ if let Ok(config_rs) = std::env::var("DEP_PYTHONXY_DEFAULT_PYTHON_CONFIG_RS") {
+ println!(
+ "cargo:rustc-env=PYOXIDIZER_DEFAULT_PYTHON_CONFIG_RS={}",
+ config_rs
+ );
+ } else {
+ panic!("unable to find build artifacts generated by pyembed crate");
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/rust/hgcli/pyoxidizer.bzl Tue Mar 31 19:07:36 2020 -0700
@@ -0,0 +1,153 @@
+# This file defines how PyOxidizer application building and packaging is
+# performed. See the pyoxidizer crate's documentation for extensive
+# documentation on this file format.
+
+# Obtain the default PythonDistribution for our build target. We link
+# this distribution into our produced executable and extract the Python
+# standard library from it.
+def make_dist():
+ return default_python_distribution()
+
+# Configuration files consist of functions which define build "targets."
+# This function creates a Python executable and installs it in a destination
+# directory.
+def make_exe(dist):
+ # This variable defines the configuration of the
+ # embedded Python interpreter.
+ python_config = PythonInterpreterConfig(
+ # bytes_warning=0,
+ # dont_write_bytecode=True,
+ # ignore_environment=True,
+ # inspect=False,
+ # interactive=False,
+ # isolated=False,
+ # legacy_windows_fs_encoding=False,
+ # legacy_windows_stdio=False,
+ # no_site=True,
+ # no_user_site_directory=True,
+ # optimize_level=0,
+ # parser_debug=False,
+ # stdio_encoding=None,
+ # unbuffered_stdio=False,
+ # filesystem_importer=False,
+ # sys_frozen=False,
+ # sys_meipass=False,
+ # sys_paths=None,
+ # raw_allocator=None,
+ # terminfo_resolution="dynamic",
+ # terminfo_dirs=None,
+ # use_hash_seed=False,
+ # verbose=0,
+ # write_modules_directory_env=None,
+ # run_eval=None,
+ # run_module=None,
+ # run_noop=False,
+ # run_repl=True,
+ )
+
+ # The run_eval, run_module, run_noop, and run_repl arguments are mutually
+ # exclusive controls over what the interpreter should do once it initializes.
+ #
+ # run_eval -- Run the specified string value via `eval()`.
+ # run_module -- Import the specified module as __main__ and run it.
+ # run_noop -- Do nothing.
+ # run_repl -- Start a Python REPL.
+ #
+ # These arguments can be ignored if you are providing your own Rust code for
+ # starting the interpreter, as Rust code has full control over interpreter
+ # behavior.
+
+ # Produce a PythonExecutable from a Python distribution, embedded
+ # resources, and other options. The returned object represents the
+ # standalone executable that will be built.
+ exe = dist.to_python_executable(
+ name = "hgcli",
+ config = python_config,
+ # Embed all extension modules, making this a fully-featured Python.
+ extension_module_filter = "all",
+
+ # Only package the minimal set of extension modules needed to initialize
+ # a Python interpreter. Many common packages in Python's standard
+ # library won't work with this setting.
+ #extension_module_filter='minimal',
+
+ # Only package extension modules that don't require linking against
+ # non-Python libraries. e.g. will exclude support for OpenSSL, SQLite3,
+ # other features that require external libraries.
+ #extension_module_filter='no-libraries',
+
+ # Only package extension modules that don't link against GPL licensed
+ # libraries.
+ #extension_module_filter='no-gpl',
+
+ # Include Python module sources. This isn't strictly required and it does
+ # make binary sizes larger. But having the sources can be useful for
+ # activities such as debugging.
+ include_sources = True,
+
+ # Whether to include non-module resource data/files.
+ include_resources = False,
+
+ # Do not include functionality for testing Python itself.
+ include_test = False,
+ )
+
+ # Invoke `pip install` with our Python distribution to install a single package.
+ # `pip_install()` returns objects representing installed files.
+ # `add_in_memory_python_resources()` adds these objects to the binary,
+ # marking them for in-memory loading.
+ #exe.add_in_memory_python_resources(dist.pip_install(["appdirs"]))
+
+ # Invoke `pip install` using a requirements file and add the collected resources
+ # to our binary.
+ #exe.add_in_memory_python_resources(dist.pip_install(["-r", "requirements.txt"]))
+
+ # Read Python files from a local directory and add them to our embedded
+ # context, taking just the resources belonging to the `foo` and `bar`
+ # Python packages.
+ #exe.add_in_memory_python_resources(dist.read_package_root(
+ # path="/src/mypackage",
+ # packages=["foo", "bar"],
+ #))
+
+ # Discover Python files from a virtualenv and add them to our embedded
+ # context.
+ #exe.add_in_memory_python_resources(dist.read_virtualenv(path="/path/to/venv"))
+
+ # Filter all resources collected so far through a filter of names
+ # in a file.
+ #exe.filter_from_files(files=["/path/to/filter-file"]))
+
+ # Return our `PythonExecutable` instance so it can be built and
+ # referenced by other consumers of this target.
+ return exe
+
+def make_embedded_resources(exe):
+ return exe.to_embedded_resources()
+
+def make_install(exe):
+ # Create an object that represents our installed application file layout.
+ files = FileManifest()
+
+ # Add the generated executable to our install layout in the root directory.
+ files.add_python_resource(".", exe)
+
+ return files
+
+# Tell PyOxidizer about the build targets defined above.
+register_target("dist", make_dist)
+register_target("exe", make_exe, depends = ["dist"], default = True)
+register_target("resources", make_embedded_resources, depends = ["exe"], default_build_script = True)
+register_target("install", make_install, depends = ["exe"])
+
+# Resolve whatever targets the invoker of this configuration file is requesting
+# be resolved.
+resolve_targets()
+
+# END OF COMMON USER-ADJUSTED SETTINGS.
+#
+# Everything below this is typically managed by PyOxidizer and doesn't need
+# to be updated by people.
+
+PYOXIDIZER_VERSION = "0.7.0-pre"
+PYOXIDIZER_COMMIT = "c772a1379c3026314eda1c8ea244b86c0658951d"
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/rust/hgcli/src/main.rs Tue Mar 31 19:07:36 2020 -0700
@@ -0,0 +1,38 @@
+use pyembed::MainPythonInterpreter;
+
+// Include an auto-generated file containing the default
+// `pyembed::PythonConfig` derived by the PyOxidizer configuration file.
+//
+// If you do not want to use PyOxidizer to generate this file, simply
+// remove this line and instantiate your own instance of
+// `pyembed::PythonConfig`.
+include!(env!("PYOXIDIZER_DEFAULT_PYTHON_CONFIG_RS"));
+
+fn main() {
+ // The following code is in a block so the MainPythonInterpreter is destroyed in an
+ // orderly manner, before process exit.
+ let code = {
+ // Load the default Python configuration as derived by the PyOxidizer config
+ // file used at build time.
+ let config = default_python_config();
+
+ // Construct a new Python interpreter using that config, handling any errors
+ // from construction.
+ match MainPythonInterpreter::new(config) {
+ Ok(mut interp) => {
+ // And run it using the default run configuration as specified by the
+ // configuration. If an uncaught Python exception is raised, handle it.
+ // This includes the special SystemExit, which is a request to terminate the
+ // process.
+ interp.run_as_main()
+ }
+ Err(msg) => {
+ eprintln!("{}", msg);
+ 1
+ }
+ }
+ };
+
+ // And exit the process according to code execution results.
+ std::process::exit(code);
+}