F# support

.github/ISSUE_TEMPLATE/bug_report.md

@@ -11,9 +11,6 @@ Thanks for reporting a bug! Please include all of the following:
 
 (1) A description of the issue. A screenshot is often helpful too.
 
-(2) A copy of what you're diffing. If you're diffing files, include
-the before and after files. If you're using difftastic with a VCS
-repository (e.g. git), include the URL and commit hash.
+(2) A copy of what you're diffing. If you're diffing files, include the before and after files. If you're using difftastic with a VCS repository (e.g. git), include the URL and commit hash.
 
-(3) The version of difftastic you're using (see `difft --version`) and
-your operating system.
+(3) The version of difftastic you're using (see `difft --version`) and your operating system.

.github/workflows/release.yml

@@ -28,7 +28,7 @@ jobs:
           - target: x86_64-unknown-linux-gnu
             os: ubuntu-20.04
           - target: x86_64-apple-darwin
-            os: macos-latest
+            os: macos-12
           - target: x86_64-pc-windows-msvc
             os: windows-latest
 

.github/workflows/test.yml

@@ -10,16 +10,17 @@ jobs:
       fail-fast: false
       matrix:
         job:
+          # Operating systems available: https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners/about-github-hosted-runners#standard-github-hosted-runners-for-public-repositories
           - { target: x86_64-unknown-linux-gnu, os: ubuntu-20.04 }
-          - { target: x86_64-apple-darwin, os: macos-latest }
+          # mac-latest (currently mac-14) is an ARM device, so use macos-12 to get Intel.
+          # Update annoucement: https://github.blog/changelog/2024-04-01-macos-14-sonoma-is-generally-available-and-the-latest-macos-runner-image/
+          - { target: x86_64-apple-darwin, os: macos-12 }
           - { target: x86_64-pc-windows-msvc, os: windows-latest }
 
           - { target: aarch64-unknown-linux-gnu, os: ubuntu-20.04, use-cross: true }
 
-          # TODO: Support cross-compiling on macOS on CI, see
-          # https://github.com/cross-rs/cross-toolchains#apple-targets
-          #
-          # - { target: aarch64-apple-darwin, os: macos-latest, use-cross: true }
+          # mac-14 is an M1 ARM device.
+          - { target: aarch64-apple-darwin, os: macos-14 }
 
           # musl binaries produced by GitHub actions segfault when run, see
           # https://github.com/Wilfred/difftastic/issues/563

CHANGELOG.md

@@ -1,10 +1,100 @@
-## 0.56 (unreleased)
+## 0.59 (unreleased)
 
 ### Parsing
 
-Updated JavaScript, TypeScript and QML parsers.
+Added support for device tree.
 
-Added support for Smali.
+Difftastic now uses tree-sitter comment highlighing as a hint that
+nodes should be treated as atoms. This ensures comments are treated
+more consistently across languages. This fixes cases in Elm where
+comment differences were ignored, and may improve other languages too.
+
+## 0.58 (released 11th May 2024)
+
+### Parsing
+
+Difftastic now preserves tree-sitter parse tree structure on parse
+error nodes. This reverts the flattening behaviour introduced in
+0.38. Preserving structure tends to produce better diffs, although it
+increases the risk that difftastic will show fewer changes in the
+presence of parse errors.
+
+Since difftastic is now conservative with parse errors
+(DFT_PARSE_ERROR_LIMIT is 0 by default), this seems like a better
+tradeoff.
+
+Updated C, C++, CMake, CSS, Elm, Go, Lua and Python parsers.
+
+### Diffing
+
+`--strip-cr` now defaults to `on`, so comparing a file with CRLF
+endings with a file with unix line endings will not show spurious
+changes.
+
+### Documentation
+
+Difftastic now has a man page, see the `difft.1` file.
+
+### Performance
+
+Fixed a memory leak and improved performance in some cases.
+
+### Command Line Interface
+
+Fixed a crash when difftastic could not detect the terminal width,
+such as inside eshell.
+
+Difftastic now also considers $COLUMNS when detecting the terminal
+width.
+
+## 0.57 (released 1st April 2024)
+
+### Parsing
+
+Text file detection is now stricter, considering null bytes as a hint
+that files are binaries.
+
+### Diffing
+
+Fixed an issue where hidden files (filename starting with `.`) were
+ignored when diffing directories.
+
+Scheme now uses the same slider heuristics as other lisps, preferring
+the outer delimiter.
+
+Fixed an issue with line-based diffing where only the first line in a
+large changed region was highlighted. This was particularly noticeable
+when diffing brand new files.
+
+### Display
+
+Fixed an issue when reporting changes in binary files, where trailing
+whitespace was inconsistent with other changes shown.
+
+## 0.56.1 (released 5th March 2024)
+
+### Build
+
+Fixed an issue with building difftastic on aarch64 with rust 1.71 or
+earlier.
+
+## 0.56 (released 5th March 2024)
+
+### Parsing
+
+Updated JavaScript, TypeScript, QML and Perl parsers.
+
+`Makefile*.in` is now detected as Makefile syntax.
+
+Improved shebang parsing with whitespace, e.g. `#! /bin/bash` is now
+detected as a shell script.
+
+Added support for Scheme and Smali.
+
+### Diffing
+
+Fixed an issue with runaway memory usage on text files with very long
+lines.
 
 ### Display
 
@@ -20,6 +110,8 @@ from `git diff`.
 Fixed an issue with the experimental JSON display mode where it
 ignored `--skip-unchanged`.
 
+Fixed an issue with tabs not being replaced in single-column display.
+
 ## 0.55 (released 1st February 2024)
 
 ### Parsing