rename epoch to edition #49035

klnusbaum · 2018-03-15T03:35:22Z

As outlined in #49001 we'd like to rename all instances of epoch to edition. I developed the following bash script to assist in the rename. It renames all instances of epoch to edition and Epoch to Edition in all of the files I was able to determine were relevant. It then renames a few relevant files that had epoch in there name and finally prints out all of the remaining instance of the strings epoch and Epoch (which, as far as I can tell should not be changed). Here is the script:

replace() {
	sed -i '' "s/epoch/edition/g" "$1"
    sed -i '' "s/Epoch/Edition/g" "$1"
}

replace "src/librustc/lint/context.rs"
replace "src/librustc/lint/mod.rs"
replace "src/librustc/session/config.rs"
replace "src/librustc/session/mod.rs"
replace "src/librustc_driver/driver.rs"
replace "src/librustc_lint/lib.rs"
replace "src/librustc_typeck/check/method/probe.rs"
replace "src/libsyntax/config.rs"
replace "src/libsyntax/epoch.rs"
replace "src/libsyntax/feature_gate.rs"
replace "src/libsyntax/lib.rs"
replace "src/test/compile-fail/epoch-raw-pointer-method-2015.rs"
replace "src/test/compile-fail/epoch-raw-pointer-method-2018.rs"
replace "src/test/run-pass/dyn-trait.rs"
replace "src/test/run-pass/epoch-gate-feature.rs"
replace "src/test/ui/inference-variable-behind-raw-pointer.stderr"

git mv src/libsyntax/epoch.rs src/libsyntax/edition.rs
git mv src/test/compile-fail/epoch-raw-pointer-method-2015.rs src/test/compile-fail/edition-raw-pointer-method-2015.rs
git mv src/test/compile-fail/epoch-raw-pointer-method-2018.rs src/test/compile-fail/edition-raw-pointer-method-2018.rs

git grep "epoch" ./*
git grep "Epoch" ./*

And here is the output of the script:

kurtis-rust$ ./epoch_to_edition.sh
src/Cargo.lock: "crossbeam-epoch 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
src/Cargo.lock:name = "crossbeam-epoch"
src/Cargo.lock:"checksum crossbeam-epoch 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "59796cc6cbbdc6bb319161349db0c3250ec73ec7fcb763a51065ec4e2e158552"
src/ci/docker/scripts/android-start-emulator.sh:# Using the default qemu2 engine makes time::tests::since_epoch fails because
src/ci/docker/scripts/android-start-emulator.sh:# the emulator date is set to unix epoch (in armeabi-v7a-18 image). Using
src/librustc_incremental/persist/fs.rs:    let micros_since_unix_epoch = u64::from_str_radix(s, INT_ENCODE_BASE as u32);
src/librustc_incremental/persist/fs.rs:    if micros_since_unix_epoch.is_err() {
src/librustc_incremental/persist/fs.rs:    let micros_since_unix_epoch = micros_since_unix_epoch.unwrap();
src/librustc_incremental/persist/fs.rs:    let duration = Duration::new(micros_since_unix_epoch / 1_000_000,
src/librustc_incremental/persist/fs.rs:                                 1000 * (micros_since_unix_epoch % 1_000_000) as u32);
src/libstd/sys/cloudabi/abi/cloudabi.rs:  /// The epoch of this clock is undefined. The absolute
src/libstd/time.rs:        let one_second_from_epoch = UNIX_EPOCH + Duration::new(1, 0);
src/libstd/time.rs:        let one_second_from_epoch2 = UNIX_EPOCH + Duration::new(0, 500_000_000)
src/libstd/time.rs:        assert_eq!(one_second_from_epoch, one_second_from_epoch2);
src/libstd/time.rs:    fn since_epoch() {
src/test/run-pass/issue-29540.rs:    pub mon_min_osdmap_epochs: String,
src/test/run-pass/issue-29540.rs:    pub mon_max_pgmap_epochs: String,
src/test/run-pass/issue-29540.rs:    pub mon_max_log_epochs: String,
src/test/run-pass/issue-29540.rs:    pub mon_max_mdsmap_epochs: String,
src/test/run-pass/issue-29540.rs:    pub osd_map_share_max_epochs: String,
src/test/run-pass/issue-29540.rs:    pub osd_pg_epoch_persisted_max_stale: String,

If it looks like I've missed any things that should be converted, please let me know. There were also some notes in src/libsyntax/epoch.rs that indicated there might be some necessary/parallel changes that need to made in cargo. But we should probably make a separate issue for that.

rust-highfive · 2018-03-15T03:35:28Z

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @cramertj (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

Please see the contribution instructions for more information.

klnusbaum · 2018-03-15T03:41:48Z

is there a preferred way of resolving merge conflicts, or can I do that however I want?

klnusbaum · 2018-03-15T03:52:08Z

Ah, I can already see there's a string that I missed. EPOCH. I'll start working on getting that fixed.

klnusbaum · 2018-03-15T04:03:42Z

I've modified my script to replace all instances of EPOCH to EDITION and I think I've got them all now. Here is the output from a grep of the whole repo:

kurtis:rust $ git grep epoch; git grep Epoch; git grep EPOCH
src/Cargo.lock: "crossbeam-epoch 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
src/Cargo.lock:name = "crossbeam-epoch"
src/Cargo.lock:"checksum crossbeam-epoch 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "59796cc6cbbdc6bb319161349db0c3250ec73ec7fcb763a51065ec4e2e158552"
src/ci/docker/scripts/android-start-emulator.sh:# Using the default qemu2 engine makes time::tests::since_epoch fails because
src/ci/docker/scripts/android-start-emulator.sh:# the emulator date is set to unix epoch (in armeabi-v7a-18 image). Using
src/librustc_incremental/persist/fs.rs:    let micros_since_unix_epoch = u64::from_str_radix(s, INT_ENCODE_BASE as u32);
src/librustc_incremental/persist/fs.rs:    if micros_since_unix_epoch.is_err() {
src/librustc_incremental/persist/fs.rs:    let micros_since_unix_epoch = micros_since_unix_epoch.unwrap();
src/librustc_incremental/persist/fs.rs:    let duration = Duration::new(micros_since_unix_epoch / 1_000_000,
src/librustc_incremental/persist/fs.rs:                                 1000 * (micros_since_unix_epoch % 1_000_000) as u32);
src/libstd/sys/cloudabi/abi/cloudabi.rs:  /// The epoch of this clock is undefined. The absolute
src/libstd/time.rs:        let one_second_from_epoch = UNIX_EPOCH + Duration::new(1, 0);
src/libstd/time.rs:        let one_second_from_epoch2 = UNIX_EPOCH + Duration::new(0, 500_000_000)
src/libstd/time.rs:        assert_eq!(one_second_from_epoch, one_second_from_epoch2);
src/libstd/time.rs:    fn since_epoch() {
src/test/run-pass/issue-29540.rs:    pub mon_min_osdmap_epochs: String,
src/test/run-pass/issue-29540.rs:    pub mon_max_pgmap_epochs: String,
src/test/run-pass/issue-29540.rs:    pub mon_max_log_epochs: String,
src/test/run-pass/issue-29540.rs:    pub mon_max_mdsmap_epochs: String,
src/test/run-pass/issue-29540.rs:    pub osd_map_share_max_epochs: String,
src/test/run-pass/issue-29540.rs:    pub osd_pg_epoch_persisted_max_stale: String,
RELEASES.md:  * [`UNIX_EPOCH`]
RELEASES.md:[`UNIX_EPOCH`]: http://doc.rust-lang.org/nightly/std/time/constant.UNIX_EPOCH.html
src/bootstrap/util.rs:        let start = self.start_time.duration_since(UNIX_EPOCH);
src/bootstrap/util.rs:        let finish = end_time.duration_since(UNIX_EPOCH);
src/librustc/dep_graph/graph.rs:        use std::time::{SystemTime, UNIX_EPOCH};
src/librustc/dep_graph/graph.rs:        let duration = SystemTime::now().duration_since(UNIX_EPOCH).unwrap();
src/librustc_incremental/persist/fs.rs:use std::time::{UNIX_EPOCH, SystemTime, Duration};
src/librustc_incremental/persist/fs.rs:    let mut best_candidate = (UNIX_EPOCH, None);
src/librustc_incremental/persist/fs.rs:    let duration = timestamp.duration_since(UNIX_EPOCH).unwrap();
src/librustc_incremental/persist/fs.rs:    Ok(UNIX_EPOCH + duration)
src/librustc_incremental/persist/fs.rs:            (UNIX_EPOCH + Duration::new(4, 0), PathBuf::from("4"), None),
src/librustc_incremental/persist/fs.rs:            (UNIX_EPOCH + Duration::new(1, 0), PathBuf::from("1"), None),
src/librustc_incremental/persist/fs.rs:            (UNIX_EPOCH + Duration::new(5, 0), PathBuf::from("5"), None),
src/librustc_incremental/persist/fs.rs:            (UNIX_EPOCH + Duration::new(3, 0), PathBuf::from("3"), None),
src/librustc_incremental/persist/fs.rs:            (UNIX_EPOCH + Duration::new(2, 0), PathBuf::from("2"), None),
src/librustc_incremental/persist/fs.rs:        let time = UNIX_EPOCH + Duration::new(i * 1_434_578, (i as u32) * 239_000);
src/libstd/sys/cloudabi/time.rs:pub const UNIX_EPOCH: SystemTime = SystemTime { t: 0 };
src/libstd/sys/redox/net/mod.rs:        let time = time::SystemTime::now().duration_since(time::UNIX_EPOCH).unwrap();
src/libstd/sys/redox/time.rs:pub const UNIX_EPOCH: SystemTime = SystemTime {
src/libstd/sys/unix/time.rs:pub use self::inner::{Instant, SystemTime, UNIX_EPOCH};
src/libstd/sys/unix/time.rs:    pub const UNIX_EPOCH: SystemTime = SystemTime {
src/libstd/sys/unix/time.rs:    pub const UNIX_EPOCH: SystemTime = SystemTime {
src/libstd/sys/wasm/time.rs:pub const UNIX_EPOCH: SystemTime = SystemTime(Duration::from_secs(0));
src/libstd/sys/windows/time.rs:const INTERVALS_TO_UNIX_EPOCH: u64 = 11_644_473_600 * INTERVALS_PER_SEC;
src/libstd/sys/windows/time.rs:pub const UNIX_EPOCH: SystemTime = SystemTime {
src/libstd/sys/windows/time.rs:        dwLowDateTime: INTERVALS_TO_UNIX_EPOCH as u32,
src/libstd/sys/windows/time.rs:        dwHighDateTime: (INTERVALS_TO_UNIX_EPOCH >> 32) as u32,
src/libstd/time.rs:/// Although a `SystemTime` cannot be directly inspected, the [`UNIX_EPOCH`]
src/libstd/time.rs:/// [`UNIX_EPOCH`]: ../../std/time/constant.UNIX_EPOCH.html
src/libstd/time.rs:/// measurement lies, and using `UNIX_EPOCH + duration` can be used to create a
src/libstd/time.rs:/// use std::time::{SystemTime, UNIX_EPOCH};
src/libstd/time.rs:/// match SystemTime::now().duration_since(UNIX_EPOCH) {
src/libstd/time.rs:///     Err(_) => panic!("SystemTime before UNIX EPOCH!"),
src/libstd/time.rs:pub const UNIX_EPOCH: SystemTime = SystemTime(time::UNIX_EPOCH);
src/libstd/time.rs:    use super::{Instant, SystemTime, Duration, UNIX_EPOCH};
src/libstd/time.rs:        let one_second_from_epoch = UNIX_EPOCH + Duration::new(1, 0);
src/libstd/time.rs:        let one_second_from_epoch2 = UNIX_EPOCH + Duration::new(0, 500_000_000)
src/libstd/time.rs:        let a = ts.duration_since(UNIX_EPOCH).unwrap();
src/libstd/time.rs:        let b = ts.duration_since(UNIX_EPOCH - Duration::new(1, 0)).unwrap();

In doing a quick scan of this output, it looks like we've got everything now. Unless there is some weird casing of epoch hanging around.

shepmaster · 2018-03-18T16:39:06Z

Unless there is some weird casing of epoch

git grep -i "epoch" should find those, I'd hope. I'd probably use git grep -i '\bepoch\b' as my sanity check search.

shepmaster · 2018-03-18T16:41:09Z

Ping from triage, @cramertj !

shepmaster · 2018-03-18T16:42:34Z

@klnusbaum you do have another merge conflict at this point.

is there a preferred way of resolving merge conflicts, or can I do that however I want?

I believe that in general, it's preferred if you rebase. (I'd personally also squash your "fix one more..." commit with the appropriate earlier commit.

cramertj · 2018-03-19T17:19:29Z

This seems fine to me so far, but it doesn't look like CI has been able to run successfully due to merge conflicts.

Manishearth · 2018-03-19T19:18:08Z

Rebased and pushed.

@bors r+

Manishearth · 2018-03-19T19:19:09Z

@klnusbaum I'll shepherd this from here, thanks for doing this! If you'd like, we need the same thing to be done on the cargo codebase. Note that the tests won't pass until this PR lands and is in a nightly, but you can start working on it earlier.

klnusbaum · 2018-03-20T17:30:41Z

@Manishearth sorry, just saw your message. I rebased, and did a little squashing. Hopefully that doesn't screw things up for you. I'll let you take it from here, but let me know if there's anything else you need :)

klnusbaum · 2018-03-20T17:32:48Z

Also, happy to take a crack at cargo. I'll make a new task in the cargo project :)

Manishearth · 2018-03-20T17:34:10Z

I'd already rebased! 😄

Doesn't screw anything up, just need to re-r+

@bors r+

bors · 2018-03-20T17:34:11Z

📌 Commit 11f1406 has been approved by Manishearth

frewsxcv · 2018-03-23T12:29:58Z

@bors rollup

rename epoch to edition As outlined in rust-lang#49001 we'd like to rename all instances of `epoch` to `edition`. I developed the following bash script to assist in the rename. It renames all instances of `epoch` to `edition` and `Epoch` to `Edition` in all of the files I was able to determine were relevant. It then renames a few relevant files that had `epoch` in there name and finally prints out all of the remaining instance of the strings `epoch` and `Epoch` (which, as far as I can tell should not be changed). Here is the script: ``` replace() { sed -i '' "s/epoch/edition/g" "$1" sed -i '' "s/Epoch/Edition/g" "$1" } replace "src/librustc/lint/context.rs" replace "src/librustc/lint/mod.rs" replace "src/librustc/session/config.rs" replace "src/librustc/session/mod.rs" replace "src/librustc_driver/driver.rs" replace "src/librustc_lint/lib.rs" replace "src/librustc_typeck/check/method/probe.rs" replace "src/libsyntax/config.rs" replace "src/libsyntax/epoch.rs" replace "src/libsyntax/feature_gate.rs" replace "src/libsyntax/lib.rs" replace "src/test/compile-fail/epoch-raw-pointer-method-2015.rs" replace "src/test/compile-fail/epoch-raw-pointer-method-2018.rs" replace "src/test/run-pass/dyn-trait.rs" replace "src/test/run-pass/epoch-gate-feature.rs" replace "src/test/ui/inference-variable-behind-raw-pointer.stderr" git mv src/libsyntax/epoch.rs src/libsyntax/edition.rs git mv src/test/compile-fail/epoch-raw-pointer-method-2015.rs src/test/compile-fail/edition-raw-pointer-method-2015.rs git mv src/test/compile-fail/epoch-raw-pointer-method-2018.rs src/test/compile-fail/edition-raw-pointer-method-2018.rs git grep "epoch" ./* git grep "Epoch" ./* ``` And here is the output of the script: ``` kurtis-rust$ ./epoch_to_edition.sh src/Cargo.lock: "crossbeam-epoch 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)", src/Cargo.lock:name = "crossbeam-epoch" src/Cargo.lock:"checksum crossbeam-epoch 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "59796cc6cbbdc6bb319161349db0c3250ec73ec7fcb763a51065ec4e2e158552" src/ci/docker/scripts/android-start-emulator.sh:# Using the default qemu2 engine makes time::tests::since_epoch fails because src/ci/docker/scripts/android-start-emulator.sh:# the emulator date is set to unix epoch (in armeabi-v7a-18 image). Using src/librustc_incremental/persist/fs.rs: let micros_since_unix_epoch = u64::from_str_radix(s, INT_ENCODE_BASE as u32); src/librustc_incremental/persist/fs.rs: if micros_since_unix_epoch.is_err() { src/librustc_incremental/persist/fs.rs: let micros_since_unix_epoch = micros_since_unix_epoch.unwrap(); src/librustc_incremental/persist/fs.rs: let duration = Duration::new(micros_since_unix_epoch / 1_000_000, src/librustc_incremental/persist/fs.rs: 1000 * (micros_since_unix_epoch % 1_000_000) as u32); src/libstd/sys/cloudabi/abi/cloudabi.rs: /// The epoch of this clock is undefined. The absolute src/libstd/time.rs: let one_second_from_epoch = UNIX_EPOCH + Duration::new(1, 0); src/libstd/time.rs: let one_second_from_epoch2 = UNIX_EPOCH + Duration::new(0, 500_000_000) src/libstd/time.rs: assert_eq!(one_second_from_epoch, one_second_from_epoch2); src/libstd/time.rs: fn since_epoch() { src/test/run-pass/issue-29540.rs: pub mon_min_osdmap_epochs: String, src/test/run-pass/issue-29540.rs: pub mon_max_pgmap_epochs: String, src/test/run-pass/issue-29540.rs: pub mon_max_log_epochs: String, src/test/run-pass/issue-29540.rs: pub mon_max_mdsmap_epochs: String, src/test/run-pass/issue-29540.rs: pub osd_map_share_max_epochs: String, src/test/run-pass/issue-29540.rs: pub osd_pg_epoch_persisted_max_stale: String, ``` If it looks like I've missed any things that should be converted, please let me know. There were also some notes in `src/libsyntax/epoch.rs` that indicated there might be some necessary/parallel changes that need to made in cargo. But we should probably make a separate issue for that.

Rollup of 15 pull requests - Successful merges: #48265, #48528, #48552, #48624, #48883, #48909, #49028, #49030, #49102, #49160, #49169, #49203, #49262, #49272, #49295 - Failed merges: #48942, #49035

rust-highfive assigned cramertj Mar 15, 2018

rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Mar 15, 2018

Manishearth force-pushed the 49001_epoch branch from 66fa91d to 7440257 Compare March 19, 2018 19:17

klnusbaum added 2 commits March 20, 2018 10:27

rename epoch to edition

3c8d555

change all appropriate EPOCH to EDITION

11f1406

klnusbaum force-pushed the 49001_epoch branch from 7440257 to 11f1406 Compare March 20, 2018 17:27

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Mar 20, 2018

frewsxcv mentioned this pull request Mar 23, 2018

Rollup of 12 pull requests #49302

Closed

frewsxcv mentioned this pull request Mar 23, 2018

Rollup of 13 pull requests #49306

Closed

alexcrichton mentioned this pull request Mar 23, 2018

Rollup of 15 pull requests #49308

Merged

klnusbaum mentioned this pull request Mar 23, 2018

Rename "epoch" to "edition" rust-lang/cargo#5214

Closed

alexcrichton merged commit 11f1406 into rust-lang:master Mar 23, 2018

klnusbaum deleted the 49001_epoch branch March 25, 2018 15:19

Manishearth mentioned this pull request Apr 1, 2018

Rename "epoch" to "edition" #49001

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rename epoch to edition #49035

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rename epoch to edition #49035

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