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use SOURCE_DATE_EPOCH for man page time if set #57920

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Merged
merged 1 commit into from
Jan 31, 2019
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use SOURCE_DATE_EPOCH for man page time if set #57920

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16 changes: 14 additions & 2 deletions src/bootstrap/dist.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@ use crate::builder::{Builder, RunConfig, ShouldRun, Step};
use crate::compile;
use crate::tool::{self, Tool};
use crate::cache::{INTERNER, Interned};
use time;
use time::{self, Timespec};

pub fn pkgname(builder: &Builder, component: &str) -> String {
if component == "cargo" {
Expand Down Expand Up @@ -528,7 +528,19 @@ impl Step for Rustc {
t!(fs::create_dir_all(image.join("share/man/man1")));
let man_src = builder.src.join("src/doc/man");
let man_dst = image.join("share/man/man1");
let month_year = t!(time::strftime("%B %Y", &time::now()));

// Reproducible builds: If SOURCE_DATE_EPOCH is set, use that as the time.
let time = env::var("SOURCE_DATE_EPOCH")
.map(|timestamp| {
let epoch = timestamp.parse().map_err(|err| {
format!("could not parse SOURCE_DATE_EPOCH: {}", err)
}).unwrap();

time::at(Timespec::new(epoch, 0))
})
.unwrap_or_else(|_| time::now());

let month_year = t!(time::strftime("%B %Y", &time));
// don't use our `bootstrap::util::{copy, cp_r}`, because those try
// to hardlink, and we don't want to edit the source templates
for file_entry in builder.read_dir(&man_src) {
Expand Down