🐛 panic hunk_header.rs:116:49

[krhubert]

Hi,

I can't paste the git output because it's a private repo, but you can check stack trace.

$ git log  --since="6 months ago" --oneline --pretty="@@@%as"  --stat
thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/git-delta-0.9.2/src/handlers/hunk_header.rs:116:49
stack backtrace:
   0:     0x561c390b8fc0 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
   1:     0x561c390b8fc0 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
   2:     0x561c390b8fc0 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
   3:     0x561c390b8fc0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
   4:     0x561c390de36c - core::fmt::write::h9ddafa4860d8adff
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
   5:     0x561c390b5957 - std::io::Write::write_fmt::h1d2ee292d2b65481
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
   6:     0x561c390bb420 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
   7:     0x561c390bb420 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
   8:     0x561c390bb420 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
   9:     0x561c390bb16c - std::panicking::default_hook::he30ad7589e0970f9
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
  10:     0x561c390bba83 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
  11:     0x561c390bb659 - std::panicking::begin_panic_handler::{{closure}}::h7001af1bb21aeaeb
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:476
  12:     0x561c390b944c - std::sys_common::backtrace::__rust_end_short_backtrace::h39910f557f5f2367
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
  13:     0x561c390bb619 - rust_begin_unwind
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:475
  14:     0x561c390dcbf1 - core::panicking::panic_fmt::h4e2659771ebc78eb
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/panicking.rs:85
  15:     0x561c390dcb3d - core::panicking::panic::h4b079e3c35cc1b09
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/panicking.rs:50
  16:     0x561c38f240b9 - delta::handlers::hunk_header::parse_hunk_header::h154f9a7f34fa8ee6
  17:     0x561c38f13765 - delta::handlers::hunk::<impl delta::delta::StateMachine>::handle_hunk_line::hd9ddd588a60639d9
  18:     0x561c38f0f7f4 - delta::delta::delta::hda41da6b1661abac
  19:     0x561c38e90197 - delta::main::hd6414381ca302648
  20:     0x561c38e8776a - std::sys_common::backtrace::__rust_begin_short_backtrace::h1b2dc25adba8ca75
  21:     0x561c38efcf73 - std::rt::lang_start::{{closure}}::h94926ffc04681f39
  22:     0x561c390bbf51 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h6a3209f124be2235
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:259
  23:     0x561c390bbf51 - std::panicking::try::do_call::h88ce358792b64df0
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
  24:     0x561c390bbf51 - std::panicking::try::h6311c259678e50fc
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
  25:     0x561c390bbf51 - std::panic::catch_unwind::h56c5716807d659a1
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
  26:     0x561c390bbf51 - std::rt::lang_start_internal::h73711f37ecfcb277
                               at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/rt.rs:51
  27:     0x561c38e90902 - main
  28:     0x7fc04509a0b3 - __libc_start_main
  29:     0x561c38e5f5ae - _start
  30:                0x0 - <unknown>

[Kr1ss-XD]

Yep, looks like the combination of --stat and that --pretty option using multiple @ signs causes that.

To reproduce :

• checkout e.g. delta's master branch
• git -P log --stat --pretty="@@@%as" | delta --no-gitconfig
• -> panicks.

Whereas all of the following commands work :

git -P log --stat | delta --no-gitconfig
git -P log --pretty="@@@%as" | delta --no-gitconfig
git -P log --stat --pretty="@%as" | delta --no-gitconfig

[dandavison]

Thanks @krhubert , this is fixed in the latest release (0.11.0)