rust: Use a maintained crate for SHA-1 hashing

https://crates.io/crates/rust-crypto hasn’t been updated in 5 years.
This doesn’t neccesarily mean there’s anything wrong with it, but if
something comes up it’s preferable to rely on libraries that have active
maintainers.

Use https://crates.io/crates/sha-1 from https://github.com/RustCrypto instead

Differential Revision: https://phab.mercurial-scm.org/D10835

rust/Cargo.lock

@@ -1,1105 +1,1083
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
 [[package]]
 name = "adler"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ee2a4ec343196209d6594e19543ae87a39f96d5534d7174822a3ad825dd6ed7e"
 
 [[package]]
 name = "aho-corasick"
 version = "0.7.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7404febffaa47dac81aa44dba71523c9d069b1bdc50a77db41195149e17f68e5"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "ansi_term"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
 dependencies = [
  "winapi",
 ]
 
 [[package]]
 name = "atty"
 version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
 dependencies = [
  "hermit-abi",
  "libc",
  "winapi",
 ]
 
 [[package]]
 name = "autocfg"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
 
 [[package]]
 name = "bitflags"
 version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
 [[package]]
 name = "bitmaps"
 version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "031043d04099746d8db04daf1fa424b2bc8bd69d92b25962dcde24da39ab64a2"
 dependencies = [
  "typenum",
 ]
 
 [[package]]
+name = "block-buffer"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4152116fd6e9dadb291ae18fc1ec3575ed6d84c29642d97890f4b4a3417297e4"
+dependencies = [
+ "generic-array",
+]
+
+[[package]]
 name = "byteorder"
 version = "1.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
 
 [[package]]
 name = "bytes-cast"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0d434f9a4ecbe987e7ccfda7274b6f82ea52c9b63742565a65cb5e8ba0f2c452"
 dependencies = [
  "bytes-cast-derive",
 ]
 
 [[package]]
 name = "bytes-cast-derive"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cb936af9de38476664d6b58e529aff30d482e4ce1c5e150293d00730b0d81fdb"
 dependencies = [
  "proc-macro2",
  "quote",
  "syn",
 ]
 
 [[package]]
 name = "cc"
 version = "1.0.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4c0496836a84f8d0495758516b8621a622beb77c0fed418570e50764093ced48"
 dependencies = [
  "jobserver",
 ]
 
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chrono"
 version = "0.4.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "670ad68c9088c2a963aaa298cb369688cf3f9465ce5e2d4ca10e6e0098a1ce73"
 dependencies = [
  "libc",
  "num-integer",
  "num-traits",
  "time",
  "winapi",
 ]
 
 [[package]]
 name = "clap"
 version = "2.33.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37e58ac78573c40708d45522f0d80fa2f01cc4f9b4e2bf749807255454312002"
 dependencies = [
  "ansi_term",
  "atty",
  "bitflags",
  "strsim",
  "textwrap",
  "unicode-width",
  "vec_map",
 ]
 
 [[package]]
 name = "const_fn"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cd51eab21ab4fd6a3bf889e2d0958c0a6e3a61ad04260325e919e652a2a62826"
 
 [[package]]
+name = "cpufeatures"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed00c67cb5d0a7d64a44f6ad2668db7e7530311dd53ea79bcd4fb022c64911c8"
+dependencies = [
+ "libc",
+]
+
+[[package]]
 name = "cpython"
 version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0f11357af68648b6a227e7e2384d439cec8595de65970f45e3f7f4b2600be472"
 dependencies = [
  "libc",
  "num-traits",
  "paste",
  "python27-sys",
  "python3-sys",
 ]
 
 [[package]]
 name = "crc32fast"
 version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "81156fece84ab6a9f2afdb109ce3ae577e42b1228441eded99bd77f627953b1a"
 dependencies = [
  "cfg-if 1.0.0",
 ]
 
 [[package]]
 name = "crossbeam-channel"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b153fe7cbef478c567df0f972e02e6d736db11affe43dfc9c56a9374d1adfb87"
 dependencies = [
  "crossbeam-utils 0.7.2",
  "maybe-uninit",
 ]
 
 [[package]]
 name = "crossbeam-channel"
 version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dca26ee1f8d361640700bde38b2c37d8c22b3ce2d360e1fc1c74ea4b0aa7d775"
 dependencies = [
  "cfg-if 1.0.0",
  "crossbeam-utils 0.8.1",
 ]
 
 [[package]]
 name = "crossbeam-deque"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "94af6efb46fef72616855b036a624cf27ba656ffc9be1b9a3c931cfc7749a9a9"
 dependencies = [
  "cfg-if 1.0.0",
  "crossbeam-epoch",
  "crossbeam-utils 0.8.1",
 ]
 
 [[package]]
 name = "crossbeam-epoch"
 version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1aaa739f95311c2c7887a76863f500026092fb1dce0161dab577e559ef3569d"
 dependencies = [
  "cfg-if 1.0.0",
  "const_fn",
  "crossbeam-utils 0.8.1",
  "lazy_static",
  "memoffset",
  "scopeguard",
 ]
 
 [[package]]
 name = "crossbeam-utils"
 version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c3c7c73a2d1e9fc0886a08b93e98eb643461230d5f1925e4036204d5f2e261a8"
 dependencies = [
  "autocfg",
  "cfg-if 0.1.10",
  "lazy_static",
 ]
 
 [[package]]
 name = "crossbeam-utils"
 version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "02d96d1e189ef58269ebe5b97953da3274d83a93af647c2ddd6f9dab28cedb8d"
 dependencies = [
  "autocfg",
  "cfg-if 1.0.0",
  "lazy_static",
 ]
 
 [[package]]
 name = "ctor"
 version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7fbaabec2c953050352311293be5c6aba8e141ba19d6811862b232d6fd020484"
 dependencies = [
  "quote",
  "syn",
 ]
 
 [[package]]
 name = "derive_more"
 version = "0.99.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41cb0e6161ad61ed084a36ba71fbba9e3ac5aee3606fb607fe08da6acbcf3d8c"
 dependencies = [
  "proc-macro2",
  "quote",
  "syn",
 ]
 
 [[package]]
 name = "difference"
 version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "524cbf6897b527295dff137cec09ecf3a05f4fddffd7dfcd1585403449e74198"
 
 [[package]]
+name = "digest"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3dd60d1080a57a05ab032377049e0591415d2b31afd7028356dbf3cc6dcb066"
+dependencies = [
+ "generic-array",
+]
+
+[[package]]
 name = "either"
 version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
 [[package]]
 name = "env_logger"
 version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
 dependencies = [
  "atty",
  "humantime",
  "log",
  "regex",
  "termcolor",
 ]
 
 [[package]]
 name = "flate2"
 version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7411863d55df97a419aa64cb4d2f167103ea9d767e2c54a1868b7ac3f6b47129"
 dependencies = [
  "cfg-if 1.0.0",
  "crc32fast",
  "libc",
  "libz-sys",
  "miniz_oxide",
 ]
 
 [[package]]
 name = "format-bytes"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1c4e89040c7fd7b4e6ba2820ac705a45def8a0c098ec78d170ae88f1ef1d5762"
 dependencies = [
  "format-bytes-macros",
  "proc-macro-hack",
 ]
 
 [[package]]
 name = "format-bytes-macros"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b05089e341a0460449e2210c3bf7b61597860b07f0deae58da38dbed0a4c6b6d"
 dependencies = [
  "proc-macro-hack",
  "proc-macro2",
  "quote",
  "syn",
 ]
 
 [[package]]
-name = "fuchsia-cprng"
-version = "0.1.1"
+name = "generic-array"
+version = "0.14.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
-
-[[package]]
-name = "gcc"
-version = "0.3.55"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f5f3913fa0bfe7ee1fd8248b6b9f42a5af4b9d65ec2dd2c3c26132b950ecfc2"
+checksum = "501466ecc8a30d1d3b7fc9229b122b2ce8ed6e9d9223f1138d4babb253e51817"
+dependencies = [
+ "typenum",
+ "version_check",
+]
 
 [[package]]
 name = "getrandom"
 version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fc587bc0ec293155d5bfa6b9891ec18a1e330c234f896ea47fbada4cadbe47e6"
 dependencies = [
  "cfg-if 0.1.10",
  "libc",
  "wasi 0.9.0+wasi-snapshot-preview1",
 ]
 
 [[package]]
 name = "glob"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
 
 [[package]]
 name = "hermit-abi"
 version = "0.1.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5aca5565f760fb5b220e499d72710ed156fdb74e631659e99377d9ebfbd13ae8"
 dependencies = [
  "libc",
 ]
 
 [[package]]
 name = "hg-core"
 version = "0.1.0"
 dependencies = [
  "byteorder",
  "bytes-cast",
  "clap",
  "crossbeam-channel 0.4.4",
  "derive_more",
  "flate2",
  "format-bytes",
  "home",
  "im-rc",
  "itertools",
  "lazy_static",
  "log",
  "memmap",
  "micro-timer",
  "pretty_assertions",
- "rand 0.7.3",
+ "rand",
  "rand_distr",
  "rand_pcg",
  "rayon",
  "regex",
- "rust-crypto",
  "same-file",
+ "sha-1",
  "tempfile",
  "twox-hash",
  "zstd",
 ]
 
 [[package]]
 name = "hg-cpython"
 version = "0.1.0"
 dependencies = [
  "cpython",
  "crossbeam-channel 0.4.4",
  "env_logger",
  "hg-core",
  "libc",
  "log",
 ]
 
 [[package]]
 name = "home"
 version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2456aef2e6b6a9784192ae780c0f15bc57df0e918585282325e8c8ac27737654"
 dependencies = [
  "winapi",
 ]
 
 [[package]]
 name = "humantime"
 version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "df004cfca50ef23c36850aaaa59ad52cc70d0e90243c3c7737a4dd32dc7a3c4f"
 dependencies = [
  "quick-error",
 ]
 
 [[package]]
 name = "im-rc"
 version = "15.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3ca8957e71f04a205cb162508f9326aea04676c8dfd0711220190d6b83664f3f"
 dependencies = [
  "bitmaps",
- "rand_core 0.5.1",
+ "rand_core",
  "rand_xoshiro",
  "sized-chunks",
  "typenum",
  "version_check",
 ]
 
 [[package]]
 name = "itertools"
 version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "284f18f85651fe11e8a991b2adb42cb078325c996ed026d994719efcfca1d54b"
 dependencies = [
  "either",
 ]
 
 [[package]]
 name = "jobserver"
 version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5c71313ebb9439f74b00d9d2dcec36440beaf57a6aa0623068441dd7cd81a7f2"
 dependencies = [
  "libc",
 ]
 
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
 version = "0.2.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1482821306169ec4d07f6aca392a4681f66c75c9918aa49641a2595db64053cb"
 
 [[package]]
 name = "libz-sys"
 version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "602113192b08db8f38796c4e85c39e960c145965140e918018bcde1952429655"
 dependencies = [
  "cc",
  "pkg-config",
  "vcpkg",
 ]
 
 [[package]]
 name = "log"
 version = "0.4.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4fabed175da42fed1fa0746b0ea71f412aa9d35e76e95e59b192c64b9dc2bf8b"
 dependencies = [
  "cfg-if 0.1.10",
 ]
 
 [[package]]
 name = "maybe-uninit"
 version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
 
 [[package]]
 name = "memchr"
 version = "2.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 
 [[package]]
 name = "memmap"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6585fd95e7bb50d6cc31e20d4cf9afb4e2ba16c5846fc76793f11218da9c475b"
 dependencies = [
  "libc",
  "winapi",
 ]
 
 [[package]]
 name = "memoffset"
 version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "157b4208e3059a8f9e78d559edc658e13df41410cb3ae03979c83130067fdd87"
 dependencies = [
  "autocfg",
 ]
 
 [[package]]
 name = "micro-timer"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2620153e1d903d26b72b89f0e9c48d8c4756cba941c185461dddc234980c298c"
 dependencies = [
  "micro-timer-macros",
  "scopeguard",
 ]
 
 [[package]]
 name = "micro-timer-macros"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e28a3473e6abd6e9aab36aaeef32ad22ae0bd34e79f376643594c2b152ec1c5d"
 dependencies = [
  "proc-macro2",
  "quote",
  "scopeguard",
  "syn",
 ]
 
 [[package]]
 name = "miniz_oxide"
 version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0f2d26ec3309788e423cfbf68ad1800f061638098d76a83681af979dc4eda19d"
 dependencies = [
  "adler",
  "autocfg",
 ]
 
 [[package]]
 name = "num-integer"
 version = "0.1.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d2cc698a63b549a70bc047073d2949cce27cd1c7b0a4a862d08a8031bc2801db"
 dependencies = [
  "autocfg",
  "num-traits",
 ]
 
 [[package]]
 name = "num-traits"
 version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
 dependencies = [
  "autocfg",
 ]
 
 [[package]]
 name = "num_cpus"
 version = "1.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
 dependencies = [
  "hermit-abi",
  "libc",
 ]
 
 [[package]]
+name = "opaque-debug"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
+
+[[package]]
 name = "output_vt100"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "53cdc5b785b7a58c5aad8216b3dfa114df64b0b06ae6e1501cef91df2fbdf8f9"
 dependencies = [
  "winapi",
 ]
 
 [[package]]
 name = "paste"
 version = "0.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "45ca20c77d80be666aef2b45486da86238fabe33e38306bd3118fe4af33fa880"
 dependencies = [
  "paste-impl",
  "proc-macro-hack",
 ]
 
 [[package]]
 name = "paste-impl"
 version = "0.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d95a7db200b97ef370c8e6de0088252f7e0dfff7d047a28528e47456c0fc98b6"
 dependencies = [
  "proc-macro-hack",
 ]
 
 [[package]]
 name = "pkg-config"
 version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3831453b3449ceb48b6d9c7ad7c96d5ea673e9b470a1dc578c2ce6521230884c"
 
 [[package]]
 name = "ppv-lite86"
 version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"
 
 [[package]]
 name = "pretty_assertions"
 version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f81e1644e1b54f5a68959a29aa86cde704219254669da328ecfdf6a1f09d427"
 dependencies = [
  "ansi_term",
  "ctor",
  "difference",
  "output_vt100",
 ]
 
 [[package]]
 name = "proc-macro-hack"
 version = "0.5.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
 
 [[package]]
 name = "proc-macro2"
 version = "1.0.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
 dependencies = [
  "unicode-xid",
 ]
 
 [[package]]
 name = "python27-sys"
 version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f485897ed7048f5032317c4e427800ef9f2053355516524d73952b8b07032054"
 dependencies = [
  "libc",
  "regex",
 ]
 
 [[package]]
 name = "python3-sys"
 version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b29b99c6868eb02beb3bf6ed025c8bcdf02efc149b8e80347d3e5d059a806db"
 dependencies = [
  "libc",
  "regex",
 ]
 
 [[package]]
 name = "quick-error"
 version = "1.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
 [[package]]
 name = "quote"
 version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "rand"
-version = "0.3.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64ac302d8f83c0c1974bf758f6b041c6c8ada916fbb44a609158ca8b064cc76c"
-dependencies = [
- "libc",
- "rand 0.4.6",
-]
-
-[[package]]
-name = "rand"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "552840b97013b1a26992c11eac34bdd778e464601a4c2054b5f0bff7c6761293"
-dependencies = [
- "fuchsia-cprng",
- "libc",
- "rand_core 0.3.1",
- "rdrand",
- "winapi",
-]
-
-[[package]]
-name = "rand"
 version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
 dependencies = [
  "getrandom",
  "libc",
  "rand_chacha",
- "rand_core 0.5.1",
+ "rand_core",
  "rand_hc",
 ]
 
 [[package]]
 name = "rand_chacha"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f4c8ed856279c9737206bf725bf36935d8666ead7aa69b52be55af369d193402"
 dependencies = [
  "ppv-lite86",
- "rand_core 0.5.1",
+ "rand_core",
 ]
 
 [[package]]
 name = "rand_core"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a6fdeb83b075e8266dcc8762c22776f6877a63111121f5f8c7411e5be7eed4b"
-dependencies = [
- "rand_core 0.4.2",
-]
-
-[[package]]
-name = "rand_core"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c33a3c44ca05fa6f1807d8e6743f3824e8509beca625669633be0acbdf509dc"
-
-[[package]]
-name = "rand_core"
 version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
 dependencies = [
  "getrandom",
 ]
 
 [[package]]
 name = "rand_distr"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "96977acbdd3a6576fb1d27391900035bf3863d4a16422973a409b488cf29ffb2"
 dependencies = [
- "rand 0.7.3",
+ "rand",
 ]
 
 [[package]]
 name = "rand_hc"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
 dependencies = [
- "rand_core 0.5.1",
+ "rand_core",
 ]
 
 [[package]]
 name = "rand_pcg"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "16abd0c1b639e9eb4d7c50c0b8100b0d0f849be2349829c740fe8e6eb4816429"
 dependencies = [
- "rand_core 0.5.1",
+ "rand_core",
 ]
 
 [[package]]
 name = "rand_xoshiro"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a9fcdd2e881d02f1d9390ae47ad8e5696a9e4be7b547a1da2afbc61973217004"
 dependencies = [
- "rand_core 0.5.1",
+ "rand_core",
 ]
 
 [[package]]
 name = "rayon"
 version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b0d8e0819fadc20c74ea8373106ead0600e3a67ef1fe8da56e39b9ae7275674"
 dependencies = [
  "autocfg",
  "crossbeam-deque",
  "either",
  "rayon-core",
 ]
 
 [[package]]
 name = "rayon-core"
 version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ab346ac5921dc62ffa9f89b7a773907511cdfa5490c572ae9be1be33e8afa4a"
 dependencies = [
  "crossbeam-channel 0.5.0",
  "crossbeam-deque",
  "crossbeam-utils 0.8.1",
  "lazy_static",
  "num_cpus",
 ]
 
 [[package]]
-name = "rdrand"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
-dependencies = [
- "rand_core 0.3.1",
-]
-
-[[package]]
 name = "redox_syscall"
 version = "0.1.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
 
 [[package]]
 name = "regex"
 version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "38cf2c13ed4745de91a5eb834e11c00bcc3709e773173b2ce4c56c9fbde04b9c"
 dependencies = [
  "aho-corasick",
  "memchr",
  "regex-syntax",
  "thread_local",
 ]
 
 [[package]]
 name = "regex-syntax"
 version = "0.6.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3b181ba2dcf07aaccad5448e8ead58db5b742cf85dfe035e2227f137a539a189"
 
 [[package]]
 name = "remove_dir_all"
 version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3acd125665422973a33ac9d3dd2df85edad0f4ae9b00dafb1a05e43a9f5ef8e7"
 dependencies = [
  "winapi",
 ]
 
 [[package]]
 name = "rhg"
 version = "0.1.0"
 dependencies = [
  "chrono",
  "clap",
  "derive_more",
  "env_logger",
  "format-bytes",
  "hg-core",
  "lazy_static",
  "log",
  "micro-timer",
  "regex",
  "users",
 ]
 
 [[package]]
-name = "rust-crypto"
-version = "0.2.36"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f76d05d3993fd5f4af9434e8e436db163a12a9d40e1a58a726f27a01dfd12a2a"
-dependencies = [
- "gcc",
- "libc",
- "rand 0.3.23",
- "rustc-serialize",
- "time",
-]
-
-[[package]]
-name = "rustc-serialize"
-version = "0.3.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
-
-[[package]]
 name = "same-file"
 version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
 dependencies = [
  "winapi-util",
 ]
 
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
+name = "sha-1"
+version = "0.9.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c4cfa741c5832d0ef7fab46cabed29c2aae926db0b11bb2069edd8db5e64e16"
+dependencies = [
+ "block-buffer",
+ "cfg-if 1.0.0",
+ "cpufeatures",
+ "digest",
+ "opaque-debug",
+]
+
+[[package]]
 name = "sized-chunks"
 version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ec31ceca5644fa6d444cc77548b88b67f46db6f7c71683b0f9336e671830d2f"
 dependencies = [
  "bitmaps",
  "typenum",
 ]
 
 [[package]]
 name = "static_assertions"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
 [[package]]
 name = "strsim"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 
 [[package]]
 name = "syn"
 version = "1.0.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a2af957a63d6bd42255c359c93d9bfdb97076bd3b820897ce55ffbfbf107f44"
 dependencies = [
  "proc-macro2",
  "quote",
  "unicode-xid",
 ]
 
 [[package]]
 name = "tempfile"
 version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 dependencies = [
  "cfg-if 0.1.10",
  "libc",
- "rand 0.7.3",
+ "rand",
  "redox_syscall",
  "remove_dir_all",
  "winapi",
 ]
 
 [[package]]
 name = "termcolor"
 version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2dfed899f0eb03f32ee8c6a0aabdb8a7949659e3466561fc0adf54e26d88c5f4"
 dependencies = [
  "winapi-util",
 ]
 
 [[package]]
 name = "textwrap"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
 dependencies = [
  "unicode-width",
 ]
 
 [[package]]
 name = "thread_local"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
 dependencies = [
  "lazy_static",
 ]
 
 [[package]]
 name = "time"
 version = "0.1.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
 dependencies = [
  "libc",
  "wasi 0.10.0+wasi-snapshot-preview1",
  "winapi",
 ]
 
 [[package]]
 name = "twox-hash"
 version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "04f8ab788026715fa63b31960869617cba39117e520eb415b0139543e325ab59"
 dependencies = [
  "cfg-if 0.1.10",
- "rand 0.7.3",
+ "rand",
  "static_assertions",
 ]
 
 [[package]]
 name = "typenum"
 version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "373c8a200f9e67a0c95e62a4f52fbf80c23b4381c05a17845531982fa99e6b33"
 
 [[package]]
 name = "unicode-width"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
 
 [[package]]
 name = "unicode-xid"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
 
 [[package]]
 name = "users"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24cc0f6d6f267b73e5a2cadf007ba8f9bc39c6a6f9666f8cf25ea809a153b032"
 dependencies = [
  "libc",
  "log",
 ]
 
 [[package]]
 name = "vcpkg"
 version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b00bca6106a5e23f3eee943593759b7fcddb00554332e856d990c893966879fb"
 
 [[package]]
 name = "vec_map"
 version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
 
 [[package]]
 name = "version_check"
 version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
 
 [[package]]
 name = "wasi"
 version = "0.9.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 
 [[package]]
 name = "wasi"
 version = "0.10.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
 
 [[package]]
 name = "winapi"
 version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
 dependencies = [
  "winapi-i686-pc-windows-gnu",
  "winapi-x86_64-pc-windows-gnu",
 ]
 
 [[package]]
 name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
 [[package]]
 name = "winapi-util"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
 dependencies = [
  "winapi",
 ]
 
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
 name = "zstd"
 version = "0.5.3+zstd.1.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "01b32eaf771efa709e8308605bbf9319bf485dc1503179ec0469b611937c0cd8"
 dependencies = [
  "zstd-safe",
 ]
 
 [[package]]
 name = "zstd-safe"
 version = "2.0.5+zstd.1.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1cfb642e0d27f64729a639c52db457e0ae906e7bc6f5fe8f5c453230400f1055"
 dependencies = [
  "libc",
  "zstd-sys",
 ]
 
 [[package]]
 name = "zstd-sys"
 version = "1.4.17+zstd.1.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b89249644df056b522696b1bb9e7c18c87e8ffa3e2f0dc3b0155875d6498f01b"
 dependencies = [
  "cc",
  "glob",
  "itertools",
  "libc",
 ]

rust/hg-core/Cargo.toml

@@ -1,44 +1,44
 [package]
 name = "hg-core"
 version = "0.1.0"
 authors = ["Georges Racinet <[e-mail]>"]
 description = "Mercurial pure Rust core library, with no assumption on Python bindings (FFI)"
 edition = "2018"
 
 [lib]
 name = "hg"
 
 [dependencies]
 bytes-cast = "0.2"
 byteorder = "1.3.4"
 derive_more = "0.99"
 home = "0.5"
 im-rc = "15.0.*"
 itertools = "0.9"
 lazy_static = "1.4.0"
 rand = "0.7.3"
 rand_pcg = "0.2.1"
 rand_distr = "0.2.2"
 rayon = "1.3.0"
 regex = "1.3.9"
+sha-1 = "0.9.6"
 twox-hash = "1.5.0"
 same-file = "1.0.6"
 tempfile = "3.1.0"
 crossbeam-channel = "0.4"
 micro-timer = "0.3.0"
 log = "0.4.8"
 memmap = "0.7.0"
 zstd = "0.5.3"
-rust-crypto = "0.2.36"
 format-bytes = "0.2.2"
 
 # We don't use the `miniz-oxide` backend to not change rhg benchmarks and until
 # we have a clearer view of which backend is the fastest.
 [dependencies.flate2]
 version = "1.0.16"
 features = ["zlib"]
 default-features = false
 
 [dev-dependencies]
 clap = "*"
 pretty_assertions = "0.6.1"

rust/hg-core/src/revlog/path_encode.rs

@@ -1,653 +1,646
-use crypto::digest::Digest;
-use crypto::sha1::Sha1;
+use sha1::{Digest, Sha1};
 
 #[derive(PartialEq, Debug)]
 #[allow(non_camel_case_types)]
 enum path_state {
     START, /* first byte of a path component */
     A,     /* "AUX" */
     AU,
     THIRD, /* third of a 3-byte sequence, e.g. "AUX", "NUL" */
     C,     /* "CON" or "COMn" */
     CO,
     COMLPT, /* "COM" or "LPT" */
     COMLPTn,
     L,
     LP,
     N,
     NU,
     P, /* "PRN" */
     PR,
     LDOT, /* leading '.' */
     DOT,  /* '.' in a non-leading position */
     H,    /* ".h" */
     HGDI, /* ".hg", ".d", or ".i" */
     SPACE,
     DEFAULT, /* byte of a path component after the first */
 }
 
 /* state machine for dir-encoding */
 #[allow(non_camel_case_types)]
 enum dir_state {
     DDOT,
     DH,
     DHGDI,
     DDEFAULT,
 }
 
 fn inset(bitset: &[u32; 8], c: u8) -> bool {
     bitset[(c as usize) >> 5] & (1 << (c & 31)) != 0
 }
 
 fn charcopy(dest: Option<&mut [u8]>, destlen: &mut usize, c: u8) {
     if let Some(slice) = dest {
         slice[*destlen] = c
     }
     *destlen += 1
 }
 
 fn memcopy(dest: Option<&mut [u8]>, destlen: &mut usize, src: &[u8]) {
     if let Some(slice) = dest {
         slice[*destlen..*destlen + src.len()].copy_from_slice(src)
     }
     *destlen += src.len();
 }
 
 fn rewrap_option<'a, 'b: 'a>(
     x: &'a mut Option<&'b mut [u8]>,
 ) -> Option<&'a mut [u8]> {
     match x {
         None => None,
         Some(y) => Some(y),
     }
 }
 
 fn hexencode<'a>(mut dest: Option<&'a mut [u8]>, destlen: &mut usize, c: u8) {
     let hexdigit = b"0123456789abcdef";
     charcopy(
         rewrap_option(&mut dest),
         destlen,
         hexdigit[(c as usize) >> 4],
     );
     charcopy(dest, destlen, hexdigit[(c as usize) & 15]);
 }
 
 /* 3-byte escape: tilde followed by two hex digits */
 fn escape3(mut dest: Option<&mut [u8]>, destlen: &mut usize, c: u8) {
     charcopy(rewrap_option(&mut dest), destlen, b'~');
     hexencode(dest, destlen, c);
 }
 
 fn encode_dir(mut dest: Option<&mut [u8]>, src: &[u8]) -> usize {
     let mut state = dir_state::DDEFAULT;
     let mut i = 0;
     let mut destlen = 0;
 
     while i < src.len() {
         match state {
             dir_state::DDOT => match src[i] {
                 b'd' | b'i' => {
                     state = dir_state::DHGDI;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 b'h' => {
                     state = dir_state::DH;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 _ => {
                     state = dir_state::DDEFAULT;
                 }
             },
             dir_state::DH => {
                 if src[i] == b'g' {
                     state = dir_state::DHGDI;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 } else {
                     state = dir_state::DDEFAULT;
                 }
             }
             dir_state::DHGDI => {
                 if src[i] == b'/' {
                     memcopy(rewrap_option(&mut dest), &mut destlen, b".hg");
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 state = dir_state::DDEFAULT;
             }
             dir_state::DDEFAULT => {
                 if src[i] == b'.' {
                     state = dir_state::DDOT
                 }
                 charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                 i += 1;
             }
         }
     }
     destlen
 }
 
 fn _encode(
     twobytes: &[u32; 8],
     onebyte: &[u32; 8],
     mut dest: Option<&mut [u8]>,
     src: &[u8],
     encodedir: bool,
 ) -> usize {
     let mut state = path_state::START;
     let mut i = 0;
     let mut destlen = 0;
     let len = src.len();
 
     while i < len {
         match state {
             path_state::START => match src[i] {
                 b'/' => {
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 b'.' => {
                     state = path_state::LDOT;
                     escape3(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 b' ' => {
                     state = path_state::DEFAULT;
                     escape3(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 b'a' => {
                     state = path_state::A;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 b'c' => {
                     state = path_state::C;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 b'l' => {
                     state = path_state::L;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 b'n' => {
                     state = path_state::N;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 b'p' => {
                     state = path_state::P;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 _ => {
                     state = path_state::DEFAULT;
                 }
             },
             path_state::A => {
                 if src[i] == b'u' {
                     state = path_state::AU;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 } else {
                     state = path_state::DEFAULT;
                 }
             }
             path_state::AU => {
                 if src[i] == b'x' {
                     state = path_state::THIRD;
                     i += 1;
                 } else {
                     state = path_state::DEFAULT;
                 }
             }
             path_state::THIRD => {
                 state = path_state::DEFAULT;
                 match src[i] {
                     b'.' | b'/' | b'\0' => escape3(
                         rewrap_option(&mut dest),
                         &mut destlen,
                         src[i - 1],
                     ),
                     _ => i -= 1,
                 }
             }
             path_state::C => {
                 if src[i] == b'o' {
                     state = path_state::CO;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 } else {
                     state = path_state::DEFAULT;
                 }
             }
             path_state::CO => {
                 if src[i] == b'm' {
                     state = path_state::COMLPT;
                     i += 1;
                 } else if src[i] == b'n' {
                     state = path_state::THIRD;
                     i += 1;
                 } else {
                     state = path_state::DEFAULT;
                 }
             }
             path_state::COMLPT => {
                 if src[i] >= b'1' && src[i] <= b'9' {
                     state = path_state::COMLPTn;
                     i += 1;
                 } else {
                     state = path_state::DEFAULT;
                     charcopy(
                         rewrap_option(&mut dest),
                         &mut destlen,
                         src[i - 1],
                     );
                 }
             }
             path_state::COMLPTn => {
                 state = path_state::DEFAULT;
                 match src[i] {
                     b'.' | b'/' | b'\0' => {
                         escape3(
                             rewrap_option(&mut dest),
                             &mut destlen,
                             src[i - 2],
                         );
                         charcopy(
                             rewrap_option(&mut dest),
                             &mut destlen,
                             src[i - 1],
                         );
                     }
                     _ => {
                         memcopy(
                             rewrap_option(&mut dest),
                             &mut destlen,
                             &src[i - 2..i],
                         );
                     }
                 }
             }
             path_state::L => {
                 if src[i] == b'p' {
                     state = path_state::LP;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 } else {
                     state = path_state::DEFAULT;
                 }
             }
             path_state::LP => {
                 if src[i] == b't' {
                     state = path_state::COMLPT;
                     i += 1;
                 } else {
                     state = path_state::DEFAULT;
                 }
             }
             path_state::N => {
                 if src[i] == b'u' {
                     state = path_state::NU;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 } else {
                     state = path_state::DEFAULT;
                 }
             }
             path_state::NU => {
                 if src[i] == b'l' {
                     state = path_state::THIRD;
                     i += 1;
                 } else {
                     state = path_state::DEFAULT;
                 }
             }
             path_state::P => {
                 if src[i] == b'r' {
                     state = path_state::PR;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 } else {
                     state = path_state::DEFAULT;
                 }
             }
             path_state::PR => {
                 if src[i] == b'n' {
                     state = path_state::THIRD;
                     i += 1;
                 } else {
                     state = path_state::DEFAULT;
                 }
             }
             path_state::LDOT => match src[i] {
                 b'd' | b'i' => {
                     state = path_state::HGDI;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 b'h' => {
                     state = path_state::H;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 _ => {
                     state = path_state::DEFAULT;
                 }
             },
             path_state::DOT => match src[i] {
                 b'/' | b'\0' => {
                     state = path_state::START;
                     memcopy(rewrap_option(&mut dest), &mut destlen, b"~2e");
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 b'd' | b'i' => {
                     state = path_state::HGDI;
                     charcopy(rewrap_option(&mut dest), &mut destlen, b'.');
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 b'h' => {
                     state = path_state::H;
                     memcopy(rewrap_option(&mut dest), &mut destlen, b".h");
                     i += 1;
                 }
                 _ => {
                     state = path_state::DEFAULT;
                     charcopy(rewrap_option(&mut dest), &mut destlen, b'.');
                 }
             },
             path_state::H => {
                 if src[i] == b'g' {
                     state = path_state::HGDI;
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 } else {
                     state = path_state::DEFAULT;
                 }
             }
             path_state::HGDI => {
                 if src[i] == b'/' {
                     state = path_state::START;
                     if encodedir {
                         memcopy(
                             rewrap_option(&mut dest),
                             &mut destlen,
                             b".hg",
                         );
                     }
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1
                 } else {
                     state = path_state::DEFAULT;
                 }
             }
             path_state::SPACE => match src[i] {
                 b'/' | b'\0' => {
                     state = path_state::START;
                     memcopy(rewrap_option(&mut dest), &mut destlen, b"~20");
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 _ => {
                     state = path_state::DEFAULT;
                     charcopy(rewrap_option(&mut dest), &mut destlen, b' ');
                 }
             },
             path_state::DEFAULT => {
                 while i != len && inset(onebyte, src[i]) {
                     charcopy(rewrap_option(&mut dest), &mut destlen, src[i]);
                     i += 1;
                 }
                 if i == len {
                     break;
                 }
                 match src[i] {
                     b'.' => {
                         state = path_state::DOT;
                         i += 1
                     }
                     b' ' => {
                         state = path_state::SPACE;
                         i += 1
                     }
                     b'/' => {
                         state = path_state::START;
                         charcopy(rewrap_option(&mut dest), &mut destlen, b'/');
                         i += 1;
                     }
                     _ => {
                         if inset(onebyte, src[i]) {
                             loop {
                                 charcopy(
                                     rewrap_option(&mut dest),
                                     &mut destlen,
                                     src[i],
                                 );
                                 i += 1;
                                 if !(i < len && inset(onebyte, src[i])) {
                                     break;
                                 }
                             }
                         } else if inset(twobytes, src[i]) {
                             let c = src[i];
                             i += 1;
                             charcopy(
                                 rewrap_option(&mut dest),
                                 &mut destlen,
                                 b'_',
                             );
                             charcopy(
                                 rewrap_option(&mut dest),
                                 &mut destlen,
                                 if c == b'_' { b'_' } else { c + 32 },
                             );
                         } else {
                             escape3(
                                 rewrap_option(&mut dest),
                                 &mut destlen,
                                 src[i],
                             );
                             i += 1;
                         }
                     }
                 }
             }
         }
     }
     match state {
         path_state::START => (),
         path_state::A => (),
         path_state::AU => (),
         path_state::THIRD => {
             escape3(rewrap_option(&mut dest), &mut destlen, src[i - 1])
         }
         path_state::C => (),
         path_state::CO => (),
         path_state::COMLPT => {
             charcopy(rewrap_option(&mut dest), &mut destlen, src[i - 1])
         }
         path_state::COMLPTn => {
             escape3(rewrap_option(&mut dest), &mut destlen, src[i - 2]);
             charcopy(rewrap_option(&mut dest), &mut destlen, src[i - 1]);
         }
         path_state::L => (),
         path_state::LP => (),
         path_state::N => (),
         path_state::NU => (),
         path_state::P => (),
         path_state::PR => (),
         path_state::LDOT => (),
         path_state::DOT => {
             memcopy(rewrap_option(&mut dest), &mut destlen, b"~2e");
         }
         path_state::H => (),
         path_state::HGDI => (),
         path_state::SPACE => {
             memcopy(rewrap_option(&mut dest), &mut destlen, b"~20");
         }
         path_state::DEFAULT => (),
     };
     destlen
 }
 
 fn basic_encode(dest: Option<&mut [u8]>, src: &[u8]) -> usize {
     let twobytes: [u32; 8] = [0, 0, 0x87ff_fffe, 0, 0, 0, 0, 0];
     let onebyte: [u32; 8] =
         [1, 0x2bff_3bfa, 0x6800_0001, 0x2fff_ffff, 0, 0, 0, 0];
     _encode(&twobytes, &onebyte, dest, src, true)
 }
 
 const MAXSTOREPATHLEN: usize = 120;
 
 fn lower_encode(mut dest: Option<&mut [u8]>, src: &[u8]) -> usize {
     let onebyte: [u32; 8] =
         [1, 0x2bff_fbfb, 0xe800_0001, 0x2fff_ffff, 0, 0, 0, 0];
     let lower: [u32; 8] = [0, 0, 0x07ff_fffe, 0, 0, 0, 0, 0];
     let mut destlen = 0;
     for c in src {
         if inset(&onebyte, *c) {
             charcopy(rewrap_option(&mut dest), &mut destlen, *c)
         } else if inset(&lower, *c) {
             charcopy(rewrap_option(&mut dest), &mut destlen, *c + 32)
         } else {
             escape3(rewrap_option(&mut dest), &mut destlen, *c)
         }
     }
     destlen
 }
 
 fn aux_encode(dest: Option<&mut [u8]>, src: &[u8]) -> usize {
     let twobytes = [0; 8];
     let onebyte: [u32; 8] = [!0, 0xffff_3ffe, !0, !0, !0, !0, !0, !0];
     _encode(&twobytes, &onebyte, dest, src, false)
 }
 
 fn hash_mangle(src: &[u8], sha: &[u8]) -> Vec<u8> {
     let dirprefixlen = 8;
     let maxshortdirslen = 68;
     let mut destlen = 0;
 
     let last_slash = src.iter().rposition(|b| *b == b'/');
     let last_dot: Option<usize> = {
         let s = last_slash.unwrap_or(0);
         src[s..]
             .iter()
             .rposition(|b| *b == b'.')
             .and_then(|i| Some(i + s))
     };
 
     let mut dest = vec![0; MAXSTOREPATHLEN];
     memcopy(Some(&mut dest), &mut destlen, b"dh/");
 
     {
         let mut first = true;
         for slice in src[..last_slash.unwrap_or_else(|| src.len())]
             .split(|b| *b == b'/')
         {
             let slice = &slice[..std::cmp::min(slice.len(), dirprefixlen)];
             if destlen + (slice.len() + if first { 0 } else { 1 })
                 > maxshortdirslen + 3
             {
                 break;
             } else {
                 if !first {
                     charcopy(Some(&mut dest), &mut destlen, b'/')
                 };
                 memcopy(Some(&mut dest), &mut destlen, slice);
                 if dest[destlen - 1] == b'.' || dest[destlen - 1] == b' ' {
                     dest[destlen - 1] = b'_'
                 }
             }
             first = false;
         }
         if !first {
             charcopy(Some(&mut dest), &mut destlen, b'/');
         }
     }
 
     let used = destlen + 40 + {
         if let Some(l) = last_dot {
             src.len() - l
         } else {
             0
         }
     };
 
     if MAXSTOREPATHLEN > used {
         let slop = MAXSTOREPATHLEN - used;
         let basenamelen = match last_slash {
             Some(l) => src.len() - l - 1,
             None => src.len(),
         };
         let basenamelen = std::cmp::min(basenamelen, slop);
         if basenamelen > 0 {
             let start = match last_slash {
                 Some(l) => l + 1,
                 None => 0,
             };
             memcopy(
                 Some(&mut dest),
                 &mut destlen,
                 &src[start..][..basenamelen],
             )
         }
     }
     for c in sha {
         hexencode(Some(&mut dest), &mut destlen, *c);
     }
     if let Some(l) = last_dot {
         memcopy(Some(&mut dest), &mut destlen, &src[l..]);
     }
     if destlen == dest.len() {
         dest
     } else {
         // sometimes the path are shorter than MAXSTOREPATHLEN
         dest[..destlen].to_vec()
     }
 }
 
 const MAXENCODE: usize = 4096 * 4;
 fn hash_encode(src: &[u8]) -> Vec<u8> {
     let dired = &mut [0; MAXENCODE];
     let lowered = &mut [0; MAXENCODE];
     let auxed = &mut [0; MAXENCODE];
     let baselen = (src.len() - 5) * 3;
     if baselen >= MAXENCODE {
         panic!("path_encode::hash_encore: string too long: {}", baselen)
     };
     let dirlen = encode_dir(Some(&mut dired[..]), src);
-    let sha = {
-        let mut hasher = Sha1::new();
-        hasher.input(&dired[..dirlen]);
-        let mut hash = vec![0; 20];
-        hasher.result(&mut hash);
-        hash
-    };
+    let sha = Sha1::digest(&dired[..dirlen]);
     let lowerlen = lower_encode(Some(&mut lowered[..]), &dired[..dirlen][5..]);
     let auxlen = aux_encode(Some(&mut auxed[..]), &lowered[..lowerlen]);
     hash_mangle(&auxed[..auxlen], &sha)
 }
 
 pub fn path_encode(path: &[u8]) -> Vec<u8> {
     let newlen = if path.len() <= MAXSTOREPATHLEN {
         basic_encode(None, path)
     } else {
         MAXSTOREPATHLEN + 1
     };
     if newlen <= MAXSTOREPATHLEN {
         if newlen == path.len() {
             path.to_vec()
         } else {
             let mut res = vec![0; newlen];
             basic_encode(Some(&mut res), path);
             res
         }
     } else {
         hash_encode(&path)
     }
 }

rust/hg-core/src/revlog/revlog.rs

@@ -1,395 +1,396
 use std::borrow::Cow;
 use std::io::Read;
 use std::ops::Deref;
 use std::path::Path;
 
 use byteorder::{BigEndian, ByteOrder};
-use crypto::digest::Digest;
-use crypto::sha1::Sha1;
 use flate2::read::ZlibDecoder;
 use micro_timer::timed;
+use sha1::{Digest, Sha1};
 use zstd;
 
 use super::index::Index;
 use super::node::{NodePrefix, NODE_BYTES_LENGTH, NULL_NODE};
 use super::nodemap;
 use super::nodemap::{NodeMap, NodeMapError};
 use super::nodemap_docket::NodeMapDocket;
 use super::patch;
 use crate::errors::HgError;
 use crate::repo::Repo;
 use crate::revlog::Revision;
 
 #[derive(derive_more::From)]
 pub enum RevlogError {
     InvalidRevision,
     /// Working directory is not supported
     WDirUnsupported,
     /// Found more than one entry whose ID match the requested prefix
     AmbiguousPrefix,
     #[from]
     Other(HgError),
 }
 
 impl From<NodeMapError> for RevlogError {
     fn from(error: NodeMapError) -> Self {
         match error {
             NodeMapError::MultipleResults => RevlogError::AmbiguousPrefix,
             NodeMapError::RevisionNotInIndex(_) => RevlogError::corrupted(),
         }
     }
 }
 
 impl RevlogError {
     fn corrupted() -> Self {
         RevlogError::Other(HgError::corrupted("corrupted revlog"))
     }
 }
 
 /// Read only implementation of revlog.
 pub struct Revlog {
     /// When index and data are not interleaved: bytes of the revlog index.
     /// When index and data are interleaved: bytes of the revlog index and
     /// data.
     pub(crate) index: Index,
     /// When index and data are not interleaved: bytes of the revlog data
     data_bytes: Option<Box<dyn Deref<Target = [u8]> + Send>>,
     /// When present on disk: the persistent nodemap for this revlog
     nodemap: Option<nodemap::NodeTree>,
 }
 
 impl Revlog {
     /// Open a revlog index file.
     ///
     /// It will also open the associated data file if index and data are not
     /// interleaved.
     #[timed]
     pub fn open(
         repo: &Repo,
         index_path: impl AsRef<Path>,
         data_path: Option<&Path>,
     ) -> Result<Self, RevlogError> {
         let index_path = index_path.as_ref();
         let index_mmap = repo.store_vfs().mmap_open(&index_path)?;
 
         let version = get_version(&index_mmap);
         if version != 1 {
             // A proper new version should have had a repo/store requirement.
             return Err(RevlogError::corrupted());
         }
 
         let index = Index::new(Box::new(index_mmap))?;
 
         let default_data_path = index_path.with_extension("d");
 
         // type annotation required
         // won't recognize Mmap as Deref<Target = [u8]>
         let data_bytes: Option<Box<dyn Deref<Target = [u8]> + Send>> =
             if index.is_inline() {
                 None
             } else {
                 let data_path = data_path.unwrap_or(&default_data_path);
                 let data_mmap = repo.store_vfs().mmap_open(data_path)?;
                 Some(Box::new(data_mmap))
             };
 
         let nodemap = NodeMapDocket::read_from_file(repo, index_path)?.map(
             |(docket, data)| {
                 nodemap::NodeTree::load_bytes(
                     Box::new(data),
                     docket.data_length,
                 )
             },
         );
 
         Ok(Revlog {
             index,
             data_bytes,
             nodemap,
         })
     }
 
     /// Return number of entries of the `Revlog`.
     pub fn len(&self) -> usize {
         self.index.len()
     }
 
     /// Returns `true` if the `Revlog` has zero `entries`.
     pub fn is_empty(&self) -> bool {
         self.index.is_empty()
     }
 
     /// Return the full data associated to a node.
     #[timed]
     pub fn get_node_rev(
         &self,
         node: NodePrefix,
     ) -> Result<Revision, RevlogError> {
         if let Some(nodemap) = &self.nodemap {
             return nodemap
                 .find_bin(&self.index, node)?
                 .ok_or(RevlogError::InvalidRevision);
         }
 
         // Fallback to linear scan when a persistent nodemap is not present.
         // This happens when the persistent-nodemap experimental feature is not
         // enabled, or for small revlogs.
         //
         // TODO: consider building a non-persistent nodemap in memory to
         // optimize these cases.
         let mut found_by_prefix = None;
         for rev in (0..self.len() as Revision).rev() {
             let index_entry =
                 self.index.get_entry(rev).ok_or(HgError::corrupted(
                     "revlog references a revision not in the index",
                 ))?;
             if node == *index_entry.hash() {
                 return Ok(rev);
             }
             if node.is_prefix_of(index_entry.hash()) {
                 if found_by_prefix.is_some() {
                     return Err(RevlogError::AmbiguousPrefix);
                 }
                 found_by_prefix = Some(rev)
             }
         }
         found_by_prefix.ok_or(RevlogError::InvalidRevision)
     }
 
     /// Returns whether the given revision exists in this revlog.
     pub fn has_rev(&self, rev: Revision) -> bool {
         self.index.get_entry(rev).is_some()
     }
 
     /// Return the full data associated to a revision.
     ///
     /// All entries required to build the final data out of deltas will be
     /// retrieved as needed, and the deltas will be applied to the inital
     /// snapshot to rebuild the final data.
     #[timed]
     pub fn get_rev_data(&self, rev: Revision) -> Result<Vec<u8>, RevlogError> {
         // Todo return -> Cow
         let mut entry = self.get_entry(rev)?;
         let mut delta_chain = vec![];
         while let Some(base_rev) = entry.base_rev {
             delta_chain.push(entry);
             entry = self
                 .get_entry(base_rev)
                 .map_err(|_| RevlogError::corrupted())?;
         }
 
         // TODO do not look twice in the index
         let index_entry = self
             .index
             .get_entry(rev)
             .ok_or(RevlogError::InvalidRevision)?;
 
         let data: Vec<u8> = if delta_chain.is_empty() {
             entry.data()?.into()
         } else {
             Revlog::build_data_from_deltas(entry, &delta_chain)?
         };
 
         if self.check_hash(
             index_entry.p1(),
             index_entry.p2(),
             index_entry.hash().as_bytes(),
             &data,
         ) {
             Ok(data)
         } else {
             Err(RevlogError::corrupted())
         }
     }
 
     /// Check the hash of some given data against the recorded hash.
     pub fn check_hash(
         &self,
         p1: Revision,
         p2: Revision,
         expected: &[u8],
         data: &[u8],
     ) -> bool {
         let e1 = self.index.get_entry(p1);
         let h1 = match e1 {
             Some(ref entry) => entry.hash(),
             None => &NULL_NODE,
         };
         let e2 = self.index.get_entry(p2);
         let h2 = match e2 {
             Some(ref entry) => entry.hash(),
             None => &NULL_NODE,
         };
 
-        hash(data, h1.as_bytes(), h2.as_bytes()).as_slice() == expected
+        &hash(data, h1.as_bytes(), h2.as_bytes()) == expected
     }
 
     /// Build the full data of a revision out its snapshot
     /// and its deltas.
     #[timed]
     fn build_data_from_deltas(
         snapshot: RevlogEntry,
         deltas: &[RevlogEntry],
     ) -> Result<Vec<u8>, RevlogError> {
         let snapshot = snapshot.data()?;
         let deltas = deltas
             .iter()
             .rev()
             .map(RevlogEntry::data)
             .collect::<Result<Vec<Cow<'_, [u8]>>, RevlogError>>()?;
         let patches: Vec<_> =
             deltas.iter().map(|d| patch::PatchList::new(d)).collect();
         let patch = patch::fold_patch_lists(&patches);
         Ok(patch.apply(&snapshot))
     }
 
     /// Return the revlog data.
     fn data(&self) -> &[u8] {
         match self.data_bytes {
             Some(ref data_bytes) => &data_bytes,
             None => panic!(
                 "forgot to load the data or trying to access inline data"
             ),
         }
     }
 
     /// Get an entry of the revlog.
     fn get_entry(&self, rev: Revision) -> Result<RevlogEntry, RevlogError> {
         let index_entry = self
             .index
             .get_entry(rev)
             .ok_or(RevlogError::InvalidRevision)?;
         let start = index_entry.offset();
         let end = start + index_entry.compressed_len();
         let data = if self.index.is_inline() {
             self.index.data(start, end)
         } else {
             &self.data()[start..end]
         };
         let entry = RevlogEntry {
             rev,
             bytes: data,
             compressed_len: index_entry.compressed_len(),
             uncompressed_len: index_entry.uncompressed_len(),
             base_rev: if index_entry.base_revision() == rev {
                 None
             } else {
                 Some(index_entry.base_revision())
             },
         };
         Ok(entry)
     }
 }
 
 /// The revlog entry's bytes and the necessary informations to extract
 /// the entry's data.
 #[derive(Debug)]
 pub struct RevlogEntry<'a> {
     rev: Revision,
     bytes: &'a [u8],
     compressed_len: usize,
     uncompressed_len: usize,
     base_rev: Option<Revision>,
 }
 
 impl<'a> RevlogEntry<'a> {
     /// Extract the data contained in the entry.
     pub fn data(&self) -> Result<Cow<'_, [u8]>, RevlogError> {
         if self.bytes.is_empty() {
             return Ok(Cow::Borrowed(&[]));
         }
         match self.bytes[0] {
             // Revision data is the entirety of the entry, including this
             // header.
             b'\0' => Ok(Cow::Borrowed(self.bytes)),
             // Raw revision data follows.
             b'u' => Ok(Cow::Borrowed(&self.bytes[1..])),
             // zlib (RFC 1950) data.
             b'x' => Ok(Cow::Owned(self.uncompressed_zlib_data()?)),
             // zstd data.
             b'\x28' => Ok(Cow::Owned(self.uncompressed_zstd_data()?)),
             // A proper new format should have had a repo/store requirement.
             _format_type => Err(RevlogError::corrupted()),
         }
     }
 
     fn uncompressed_zlib_data(&self) -> Result<Vec<u8>, RevlogError> {
         let mut decoder = ZlibDecoder::new(self.bytes);
         if self.is_delta() {
             let mut buf = Vec::with_capacity(self.compressed_len);
             decoder
                 .read_to_end(&mut buf)
                 .map_err(|_| RevlogError::corrupted())?;
             Ok(buf)
         } else {
             let mut buf = vec![0; self.uncompressed_len];
             decoder
                 .read_exact(&mut buf)
                 .map_err(|_| RevlogError::corrupted())?;
             Ok(buf)
         }
     }
 
     fn uncompressed_zstd_data(&self) -> Result<Vec<u8>, RevlogError> {
         if self.is_delta() {
             let mut buf = Vec::with_capacity(self.compressed_len);
             zstd::stream::copy_decode(self.bytes, &mut buf)
                 .map_err(|_| RevlogError::corrupted())?;
             Ok(buf)
         } else {
             let mut buf = vec![0; self.uncompressed_len];
             let len = zstd::block::decompress_to_buffer(self.bytes, &mut buf)
                 .map_err(|_| RevlogError::corrupted())?;
             if len != self.uncompressed_len {
                 Err(RevlogError::corrupted())
             } else {
                 Ok(buf)
             }
         }
     }
 
     /// Tell if the entry is a snapshot or a delta
     /// (influences on decompression).
     fn is_delta(&self) -> bool {
         self.base_rev.is_some()
     }
 }
 
 /// Format version of the revlog.
 pub fn get_version(index_bytes: &[u8]) -> u16 {
     BigEndian::read_u16(&index_bytes[2..=3])
 }
 
 /// Calculate the hash of a revision given its data and its parents.
-fn hash(data: &[u8], p1_hash: &[u8], p2_hash: &[u8]) -> Vec<u8> {
+fn hash(
+    data: &[u8],
+    p1_hash: &[u8],
+    p2_hash: &[u8],
+) -> [u8; NODE_BYTES_LENGTH] {
     let mut hasher = Sha1::new();
     let (a, b) = (p1_hash, p2_hash);
     if a > b {
-        hasher.input(b);
-        hasher.input(a);
+        hasher.update(b);
+        hasher.update(a);
     } else {
-        hasher.input(a);
-        hasher.input(b);
+        hasher.update(a);
+        hasher.update(b);
     }
-    hasher.input(data);
-    let mut hash = vec![0; NODE_BYTES_LENGTH];
-    hasher.result(&mut hash);
-    hash
+    hasher.update(data);
+    *hasher.finalize().as_ref()
 }
 
 #[cfg(test)]
 mod tests {
     use super::*;
 
     use super::super::index::IndexEntryBuilder;
 
     #[test]
     fn version_test() {
         let bytes = IndexEntryBuilder::new()
             .is_first(true)
             .with_version(1)
             .build();
 
         assert_eq!(get_version(&bytes), 1)
     }
 }