D7576: hg-core: add configparser to library

indygreg (Gregory Szorc) phabricator at mercurial-scm.org
Sat Dec 7 20:19:24 UTC 2019


indygreg created this revision.
Herald added subscribers: mercurial-devel, kevincox, durin42.
Herald added a reviewer: hg-reviewers.

REVISION SUMMARY
  This commit contains all the changes to the recently-imported
  Rust code to make it work with our Rust library and pass our
  linting tests.
  
  We rename lib.rs to mod.rs to reflect it being a sub-module instead
  of a full library. We add this module to our lib.rs. We add various
  package dependencies to Cargo.toml. We make a handful of Rust code
  updates to reflect the new symbol locations. Finally, we tweak the
  Python script so check-code doesn't complain.
  
  As part of adding the dependencies, some versions changed slightly
  from the upstream Cargo.toml, as we already had referenced a more
  modern crate version.

REPOSITORY
  rHG Mercurial

BRANCH
  default

REVISION DETAIL
  https://phab.mercurial-scm.org/D7576

AFFECTED FILES
  rust/Cargo.lock
  rust/hg-core/Cargo.toml
  rust/hg-core/src/configparser/c_api.rs
  rust/hg-core/src/configparser/config.rs
  rust/hg-core/src/configparser/generate_parser.py
  rust/hg-core/src/configparser/hg.rs
  rust/hg-core/src/configparser/lib.rs
  rust/hg-core/src/configparser/mod.rs
  rust/hg-core/src/lib.rs

CHANGE DETAILS

diff --git a/rust/hg-core/src/lib.rs b/rust/hg-core/src/lib.rs
--- a/rust/hg-core/src/lib.rs
+++ b/rust/hg-core/src/lib.rs
@@ -3,6 +3,7 @@
 // This software may be used and distributed according to the terms of the
 // GNU General Public License version 2 or any later version.
 mod ancestors;
+pub mod configparser;
 pub mod dagops;
 pub use ancestors::{AncestorsIterator, LazyAncestors, MissingAncestors};
 mod dirstate;
diff --git a/rust/hg-core/src/configparser/lib.rs b/rust/hg-core/src/configparser/mod.rs
rename from rust/hg-core/src/configparser/lib.rs
rename to rust/hg-core/src/configparser/mod.rs
diff --git a/rust/hg-core/src/configparser/hg.rs b/rust/hg-core/src/configparser/hg.rs
--- a/rust/hg-core/src/configparser/hg.rs
+++ b/rust/hg-core/src/configparser/hg.rs
@@ -15,10 +15,10 @@
 
 use anyhow::Result;
 use bytes::Bytes;
-use util::path::expand_path;
 
-use crate::config::{ConfigSet, Options};
-use crate::error::Error;
+use crate::utils::path::expand_path;
+use super::config::{ConfigSet, Options};
+use super::error::Error;
 
 pub const HGPLAIN: &str = "HGPLAIN";
 pub const HGPLAINEXCEPT: &str = "HGPLAINEXCEPT";
@@ -500,7 +500,7 @@
 /// Example:
 ///
 /// ```
-/// use configparser::hg::parse_list;
+/// use hg::configparser::hg::parse_list;
 ///
 /// assert_eq!(
 ///     parse_list(b"this,is \"a small\" ,test"),
@@ -728,7 +728,7 @@
 
     use tempdir::TempDir;
 
-    use crate::config::tests::write_file;
+    use crate::configparser::config::tests::write_file;
 
     use lazy_static::lazy_static;
     use parking_lot::Mutex;
diff --git a/rust/hg-core/src/configparser/generate_parser.py b/rust/hg-core/src/configparser/generate_parser.py
--- a/rust/hg-core/src/configparser/generate_parser.py
+++ b/rust/hg-core/src/configparser/generate_parser.py
@@ -75,15 +75,18 @@
 
 def write_generated_parser():
     spec_pest_path = os.path.join(crate_root, "src", "spec.pest")
-    spec = open(spec_pest_path, "rb").read()
+    with open(spec_pest_path, "rb") as fh:
+        spec = fh.read()
 
     checksum = hashlib.sha1(spec).hexdigest()
     output_path = os.path.join(crate_root, "src", "parser.rs")
 
     try:
-        old_checksum = re.search(
-            "pest-checksum: (.*)\.", open(output_path).read()
-        ).group(1)
+        with open(output_path) as fh:
+            old_checksum = re.search("pest-checksum: (.*)\.", fh.read()).group(
+                1
+            )
+
         if old_checksum == checksum:
             print(
                 "No need to update %s because %s is not changed."
diff --git a/rust/hg-core/src/configparser/config.rs b/rust/hg-core/src/configparser/config.rs
--- a/rust/hg-core/src/configparser/config.rs
+++ b/rust/hg-core/src/configparser/config.rs
@@ -17,10 +17,10 @@
 use bytes::Bytes;
 use indexmap::IndexMap;
 use pest::{self, Parser, Span};
-use util::path::expand_path;
 
-use crate::error::Error;
-use crate::parser::{ConfigParser, Rule};
+use super::error::Error;
+use super::parser::{ConfigParser, Rule};
+use crate::utils::path::expand_path;
 
 type Pair<'a> = pest::iterators::Pair<'a, Rule>;
 
diff --git a/rust/hg-core/src/configparser/c_api.rs b/rust/hg-core/src/configparser/c_api.rs
--- a/rust/hg-core/src/configparser/c_api.rs
+++ b/rust/hg-core/src/configparser/c_api.rs
@@ -14,10 +14,10 @@
 
 use bytes::Bytes;
 
-use crate::config::{ConfigSet, Options};
-use crate::error::Error;
-use crate::hg::ConfigSetHgExt;
-use crate::hg::OptionsHgExt;
+use super::config::{ConfigSet, Options};
+use super::error::Error;
+use super::hg::ConfigSetHgExt;
+use super::hg::OptionsHgExt;
 
 /// Create and return a new, empty ConfigSet
 #[no_mangle]
diff --git a/rust/hg-core/Cargo.toml b/rust/hg-core/Cargo.toml
--- a/rust/hg-core/Cargo.toml
+++ b/rust/hg-core/Cargo.toml
@@ -11,12 +11,22 @@
 [dependencies]
 anyhow = "1.0.20"
 byteorder = "1.3.1"
+bytes = "0.4.10"
 dirs = "2.0.2"
+indexmap = "1.0.1"
 lazy_static = "1.3.0"
 memchr = "2.2.0"
+parking_lot = "0.9"
+pest = "2.1.0"
+pest_derive = "2.1.0"
 rand = "0.6.5"
 rand_pcg = "0.1.1"
 regex = "1.1.0"
 rayon = "1.2.0"
 shellexpand = "1.0.0"
 tempfile = "3.0.4"
+thiserror = "1.0.5"
+
+[dev-dependencies]
+lazy_static = "1.3"
+tempdir = "0.3"
diff --git a/rust/Cargo.lock b/rust/Cargo.lock
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -80,11 +80,44 @@
 ]
 
 [[package]]
+name = "block-buffer"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "block-padding 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "generic-array 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "block-padding"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "byte-tools"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "byteorder"
 version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "bytes"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "c2-chacha"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -166,6 +199,14 @@
 ]
 
 [[package]]
+name = "digest"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "generic-array 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "dirs"
 version = "2.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -211,11 +252,24 @@
 ]
 
 [[package]]
+name = "fake-simd"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "fuchsia-cprng"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "generic-array"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "getrandom"
 version = "0.1.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -231,15 +285,22 @@
 dependencies = [
  "anyhow 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "dirs 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "indexmap 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "shellexpand 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -260,6 +321,22 @@
 ]
 
 [[package]]
+name = "indexmap"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "autocfg 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "iovec"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "lazy_static"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -270,6 +347,24 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "lock_api"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "maplit"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "maybe-uninit"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "memchr"
 version = "2.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -304,6 +399,74 @@
 ]
 
 [[package]]
+name = "opaque-debug"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "parking_lot"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lock_api 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot_core 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "pest"
+version = "2.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "ucd-trie 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "pest_derive"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "pest 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest_generator 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "pest_generator"
+version = "2.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "pest 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest_meta 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "pest_meta"
+version = "2.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha-1 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "ppv-lite86"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -344,6 +507,18 @@
 
 [[package]]
 name = "rand"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand"
 version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
@@ -587,11 +762,30 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "sha-1"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "block-buffer 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "digest 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fake-simd 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "opaque-debug 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "shellexpand"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "smallvec"
+version = "0.6.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "maybe-uninit 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "syn"
 version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -613,6 +807,15 @@
 ]
 
 [[package]]
+name = "tempdir"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "tempfile"
 version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -626,6 +829,24 @@
 ]
 
 [[package]]
+name = "thiserror"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "thiserror-impl 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "thread_local"
 version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -634,6 +855,16 @@
 ]
 
 [[package]]
+name = "typenum"
+version = "1.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "ucd-trie"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "unicode-xid"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -674,7 +905,11 @@
 "checksum base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0b25d992356d2eb0ed82172f5248873db5560c4721f564b13cb5193bda5e668e"
 "checksum bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 "checksum blake2b_simd 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b83b7baab1e671718d78204225800d6b170e648188ac7dc992e9d6bddf87d0c0"
+"checksum block-buffer 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "c0940dc441f31689269e10ac70eb1002a3a1d3ad1390e030043662eb7fe4688b"
+"checksum block-padding 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "fa79dedbb091f449f1f39e53edf88d5dbe95f895dae6135a8d7b881fb5af73f5"
+"checksum byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e3b5ca7a04898ad4bcd41c90c5285445ff5b791899bb1b0abdd2a2aa791211d7"
 "checksum byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a7c3dd8985a7111efc5c80b44e23ecdd8c007de8ade3b96595387e812b957cf5"
+"checksum bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)" = "206fdffcfa2df7cbe15601ef46c813fce0965eb3286db6b56c583b814b51c81c"
 "checksum c2-chacha 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "214238caa1bf3a496ec3392968969cab8549f96ff30652c9e56885329315f6bb"
 "checksum cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)" = "f52a465a666ca3d838ebbf08b241383421412fe7ebb463527bba275526d89f76"
 "checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
@@ -685,25 +920,41 @@
 "checksum crossbeam-epoch 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "fedcd6772e37f3da2a9af9bf12ebe046c0dfe657992377b4df982a2b54cd37a9"
 "checksum crossbeam-queue 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7c979cd6cfe72335896575c6b5688da489e420d36a27a0b9eb0c73db574b4a4b"
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