mirror of https://github.com/Llewellynvdm/exa.git
Use lazy_static to cache datetime formats
One of those two date formats was re-compiled before any date was displayed. Now they are compiled only the first time they're used, and cached versions are used thereafter, resulting in a speedup.
This commit is contained in:
Ben S
parent
021655faec
commit
e07992d08c
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@ -7,7 +7,8 @@ dependencies = [
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"datetime 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
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"git2 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"lazy_static 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"locale 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
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"natord 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
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"num_cpus 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
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@ -23,7 +24,7 @@ name = "advapi32-sys"
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version = "0.1.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"winapi 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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@ -32,7 +33,7 @@ name = "aho-corasick"
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version = "0.3.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"memchr 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
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"memchr 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -47,7 +48,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "byteorder"
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version = "0.3.13"
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version = "0.4.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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@ -77,7 +78,7 @@ version = "0.3.19"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"advapi32-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -96,6 +97,11 @@ dependencies = [
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"url 0.2.37 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "lazy_static"
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version = "0.1.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "libc"
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version = "0.1.12"
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@ -103,7 +109,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "libc"
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version = "0.2.0"
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version = "0.2.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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@ -165,10 +171,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "memchr"
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version = "0.1.6"
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version = "0.1.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -181,7 +187,7 @@ name = "num"
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version = "0.1.27"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"rand 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand 0.3.12 (registry+https://github.com/rust-lang/crates.io-index)",
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"rustc-serialize 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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@ -235,12 +241,12 @@ dependencies = [
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[[package]]
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name = "rand"
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version = "0.3.11"
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version = "0.3.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"advapi32-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -249,7 +255,7 @@ version = "0.1.41"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"aho-corasick 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"memchr 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
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"memchr 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
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"regex-syntax 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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@ -289,7 +295,7 @@ name = "tempdir"
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version = "0.3.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"rand 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand 0.3.12 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -305,7 +311,7 @@ name = "tz"
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version = "0.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"byteorder 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
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"byteorder 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -332,7 +338,7 @@ dependencies = [
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[[package]]
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name = "winapi"
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version = "0.2.4"
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version = "0.2.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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@ -11,12 +11,13 @@ ansi_term = "0.7.0"
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bitflags = "0.1"
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datetime = "0.4.1"
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getopts = "0.2.14"
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lazy_static = "0.1.*"
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libc = "0.2.0"
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locale = "0.1.2"
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natord = "1.0.7"
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num_cpus = "0.2.7"
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number_prefix = "0.2.3"
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scoped_threadpool = "*"
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scoped_threadpool = "0.1.*"
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term_grid = "0.1.2"
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unicode-width = "0.1.3"
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users = "0.4.3"
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@ -1,5 +1,5 @@
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#![warn(trivial_casts, trivial_numeric_casts)]
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#![warn(unused_extern_crates, unused_qualifications)]
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#![warn(unused_qualifications)]
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#![warn(unused_results)]
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extern crate ansi_term;
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@ -15,9 +15,8 @@ extern crate term_grid;
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extern crate unicode_width;
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extern crate users;
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#[cfg(feature="git")]
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extern crate git2;
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#[cfg(feature="git")] extern crate git2;
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#[macro_use] extern crate lazy_static;
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use std::env;
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use std::path::{Component, Path};
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@ -129,13 +129,11 @@ use output::column::{Alignment, Column, Columns, Cell, SizeFormat};
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use ansi_term::{ANSIString, ANSIStrings, Style};
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use datetime::local::{LocalDateTime, DatePiece};
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use datetime::format::{DateFormat};
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use datetime::zoned::{TimeZone};
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use datetime::format::DateFormat;
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use datetime::zoned::TimeZone;
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use locale;
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use number_prefix::{binary_prefix, decimal_prefix, Prefixed, Standalone, PrefixNames};
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use users::{OSUsers, Users};
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use users::mock::MockUsers;
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@ -562,6 +560,8 @@ impl<U> Table<U> where U: Users {
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}
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fn render_size(&self, size: f::Size, size_format: SizeFormat) -> Cell {
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use number_prefix::{binary_prefix, decimal_prefix, Prefixed, Standalone, PrefixNames};
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if let f::Size::Some(offset) = size {
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let result = match size_format {
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SizeFormat::DecimalBytes => decimal_prefix(offset as f64),
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@ -591,14 +591,14 @@ impl<U> Table<U> where U: Users {
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fn render_time(&self, timestamp: f::Time) -> Cell {
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let date = self.tz.at(LocalDateTime::at(timestamp.0 as i64));
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let format = if date.year() == self.current_year {
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DateFormat::parse("{2>:D} {:M} {2>:h}:{02>:m}").unwrap()
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let datestamp = if date.year() == self.current_year {
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DATE_AND_TIME.format(&date, &self.time)
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}
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else {
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DateFormat::parse("{2>:D} {:M} {5>:Y}").unwrap()
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DATE_AND_YEAR.format(&date, &self.time)
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};
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Cell::paint(self.colours.date, &format.format(&date, &self.time))
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Cell::paint(self.colours.date, &datestamp)
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}
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fn render_git_status(&self, git: f::Git) -> Cell {
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@ -753,6 +753,15 @@ impl TreePart {
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}
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lazy_static! {
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static ref DATE_AND_TIME: DateFormat<'static> =
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DateFormat::parse("{2>:D} {:M} {2>:h}:{02>:m}").unwrap();
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static ref DATE_AND_YEAR: DateFormat<'static> =
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DateFormat::parse("{2>:D} {:M} {5>:Y}").unwrap();
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}
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#[cfg(test)]
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pub mod test {
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pub use super::Table;
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