fix(oss-build): allow nightly features on stable via RUSTC_BOOTSTRAP#1365
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fix(oss-build): allow nightly features on stable via RUSTC_BOOTSTRAP#1365vegerot wants to merge 1 commit into
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make oss failed on stable Rust 1.97.1 with:
error[E0554]: #![feature] may not be used on stable
--> smallvec-1.15.2/src/lib.rs:95: specialization
and 8 crates using #![feature(once_cell_try)]
Buck builds use a nightly toolchain internally and handle this,
but cargo oss builds use stable rustc by default.
Cargo.toml files are @generated by autocargo from BUCK files,
so we should not hand-edit them to remove the features.
Setting RUSTC_BOOTSTRAP=1 in build.py's cargo_env allows stable
cargo/rustc to accept these nightly features without requiring
users to install a nightly toolchain or override.
Fixes: cd eden/scm && make -j oss
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Pull request overview
This PR adjusts Sapling’s OSS cargo build environment so stable Rust can compile dependencies that use nightly-only #![feature] gates, avoiding requiring a nightly toolchain for make oss.
Changes:
- Set
RUSTC_BOOTSTRAP=1(if not already set) incargo_env()to allow compiling crates that require nightly features during OSS cargo builds.
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vegerot
added a commit
to vegerot/sapling
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Jul 24, 2026
…n in Ghostty
Summary:
When running under Ghostty (and cmux which uses libghostty) outside of tmux,
eden/scm's internal pager and interactive commit UI did not register any
Shift-modified key.
Root cause:
- `termwiz` `UnixTerminal::set_raw_mode()` enables `modifyOtherKeys=2` (`ESC[>4;2m`).
- Ghostty's `key_encode.zig` correctly implements this: `Shift+G` is sent as
`ESC[27;2;71~` (where 71 is uppercase G) and `Shift+@` as `ESC[27;2;64~`.
- `termwiz` `InputParser` decodes these as `Char('G')+SHIFT` and `Char('@')+SHIFT`.
Two separate code paths were affected:
1. **streampager** (Rust, used by `sl log` etc.):
The keymap stores `'G'` as `(NONE, Char('G'))`. The lookup used exact
modifier match, so `(SHIFT, Char('G'))` never matched — `G` was silently dropped.
2. **curses_compat** (Python, used by `sl commit --interactive` / crecord):
`curses_compat.py:getch()` only handled `Modifiers.NONE` and `Modifiers.CTRL`.
When `SHIFT` was set, it fell through to `return -1`, silently dropping the key
so `A` (toggle all), `G`, `J`, `H`, `F` etc. did not work.
Additionally, the CTRL check used `Modifiers.CTRL or Modifiers.RIGHT_CTRL` (Python
`or` always evaluates to `Modifiers.CTRL`); fixed to use bitwise `|` with `&`.
tmux masks this because `send-keys -l` sends plain `0x47` (`G+NONE`). Raw hex
injection via tmux reproduces the bug:
```
tmux send-keys -H '1b5b32373b323b37317e' # ESC[27;2;71~ Shift+G
```
Old `sl` stays at top, new `sl` goes to bottom.
Fix:
Strip the SHIFT modifier and retry the lookup:
1. **streampager**: In `Screen::dispatch_key` and `Prompt::dispatch_key`, build a
candidate list that includes the original key plus a SHIFT-stripped variant, then
try each against the keymap/prompt match. `modifyOtherKeys=2` already sends the
shifted character (uppercase), so stripping SHIFT is sufficient.
2. **curses_compat**: In `getch()`, add a `modifiers & SHIFT` branch that returns
`ord(ch.upper())`. Also fix the CTRL modifier check from `or` to bitwise `|`.
Test Plan:
- `make oss` - builds (but requires facebook#1365)
- tmux test:
```bash
tmux new -d -s t; tmux send-keys -t t './out/sl log -l 5000 --pager=always'
# Check plain G goes to bottom, g to top.
tmux send-keys -t t -H '1b5b32373b323b37317e' # Shift+G Ghostty modifyOtherKeys
# => now goes to bottom (was stuck at top)
tmux send-keys -t t -l '/' ; send -H '1b5b32373b323b36347e' # Shift+@ in prompt
# => now shows Search: @ (was empty)
```
Verified old `/usr/local/bin/sl` fails, new `out/sl` passes.
- `cargo test -p sapling-streampager` still 5 passed.
- `python tests/run-tests.py tests/test-commit-interactive-curses.t` passes.
- Manual in Ghostty.app outside tmux: `G` jumps to bottom, `/` `@` search works,
capital letters searchable (previously broken). `sl commit --interactive` `A`
toggles all files (previously broken).
Fixes facebook#1363
Co-authored-by: Opencode <opencode@anomalyco.dev>
vegerot
added a commit
to vegerot/sapling
that referenced
this pull request
Jul 25, 2026
…n in Ghostty
Summary:
When running under Ghostty (and cmux which uses libghostty) outside of tmux,
eden/scm's internal pager and interactive commit UI did not register any
Shift-modified key.
Root cause:
- `termwiz` `UnixTerminal::set_raw_mode()` enables `modifyOtherKeys=2` (`ESC[>4;2m`).
- Ghostty's `key_encode.zig` correctly implements this: `Shift+G` is sent as
`ESC[27;2;71~` (where 71 is uppercase G) and `Shift+@` as `ESC[27;2;64~`.
- `termwiz` `InputParser` decodes these as `Char('G')+SHIFT` and `Char('@')+SHIFT`.
Two separate code paths were affected:
1. **streampager** (Rust, used by `sl log` etc.):
The keymap stores `'G'` as `(NONE, Char('G'))`. The lookup used exact
modifier match, so `(SHIFT, Char('G'))` never matched — `G` was silently dropped.
2. **curses_compat** (Python, used by `sl commit --interactive` / crecord):
`curses_compat.py:getch()` only handled `Modifiers.NONE` and `Modifiers.CTRL`.
When `SHIFT` was set, it fell through to `return -1`, silently dropping the key
so `A` (toggle all), `G`, `J`, `H`, `F` etc. did not work.
Additionally, the CTRL check used `Modifiers.CTRL or Modifiers.RIGHT_CTRL` (Python
`or` always evaluates to `Modifiers.CTRL`); fixed to use bitwise `|` with `&`.
tmux masks this because `send-keys -l` sends plain `0x47` (`G+NONE`). Raw hex
injection via tmux reproduces the bug:
```
tmux send-keys -H '1b5b32373b323b37317e' # ESC[27;2;71~ Shift+G
```
Old `sl` stays at top, new `sl` goes to bottom.
Fix:
Strip the SHIFT modifier and retry the lookup:
1. **streampager**: In `Screen::dispatch_key` and `Prompt::dispatch_key`, build a
candidate list that includes the original key plus a SHIFT-stripped variant, then
try each against the keymap/prompt match. `modifyOtherKeys=2` already sends the
shifted character (uppercase), so stripping SHIFT is sufficient.
2. **curses_compat**: In `getch()`, add a `modifiers & SHIFT` branch that returns
`ord(ch.upper())`. Also fix the CTRL modifier check from `or` to bitwise `|`.
Test Plan:
- `make oss` - builds (but requires facebook#1365)
- tmux test:
```bash
tmux new -d -s t; tmux send-keys -t t './out/sl log -l 5000 --pager=always'
# Check plain G goes to bottom, g to top.
tmux send-keys -t t -H '1b5b32373b323b37317e' # Shift+G Ghostty modifyOtherKeys
# => now goes to bottom (was stuck at top)
tmux send-keys -t t -l '/' ; send -H '1b5b32373b323b36347e' # Shift+@ in prompt
# => now shows Search: @ (was empty)
```
Verified old `/usr/local/bin/sl` fails, new `out/sl` passes.
- `cargo test -p sapling-streampager` still 5 passed.
- `python tests/run-tests.py tests/test-commit-interactive-curses.t` passes.
- Manual in Ghostty.app outside tmux: `G` jumps to bottom, `/` `@` search works,
capital letters searchable (previously broken). `sl commit --interactive` `A`
toggles all files (previously broken).
Fixes facebook#1363
Co-authored-by: Opencode <opencode@anomalyco.dev>
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make oss failed on stable Rust 1.97.1 with:
error[E0554]: #![feature] may not be used on stable
--> smallvec-1.15.2/src/lib.rs:95: specialization
and 8 crates using #![feature(once_cell_try)]
Buck builds use a nightly toolchain internally and handle this,
but cargo oss builds use stable rustc by default.
Cargo.toml files are @generated by autocargo from BUCK files,
so we should not hand-edit them to remove the features.
Setting RUSTC_BOOTSTRAP=1 in build.py's cargo_env allows stable
cargo/rustc to accept these nightly features without requiring
users to install a nightly toolchain or override.
Fixes: cd eden/scm && make -j oss