Fail to report diff(unified format) result to github-pr-check

[hsnuhayato]

Hi there,

Thank you for developing such amazing tool.
However I am facing some problems, and looking forward to the answer.

Here is my pr, I use my own github-action to check clang-format, and with tee option I got a output like this in the summary log

Processing 1 files: ./cpp_src/main_atcoder.cpp
--- ./cpp_src/main_atcoder.cpp	(original)
+++ ./cpp_src/main_atcoder.cpp	(reformatted)
@@ -36,8 +36,7 @@
     for (int j = 0; j <= W; ++j) {
       if (i == 0) dp[i][a[j]] = 1;
       chmin(dp[i + 1][j], dp[i][j]);
-      if (j >= a[i])
-      {
+      if (j >= a[i]) {
         chmin(dp[i + 1][j], dp[i][j - a[i]] + 1)
       };

and I parse this output like this

/run-clang-format.py "$@" 2>&1 \
reviewdog -name=clang-format-lint-action -f=diff -tee \
              -reporter=github-pr-review \
              -filter-mode=nofilter \
              -fail-on-error=true \
              -level=error \

however, I can't get any report on my pr page by reviewdog.
Did I miss something??

[hsnuhayato]

ok, finally I find the reason...
The diff(unified format) format should not includes the line:
Processing 1 files: ./cpp_src/main_atcoder.cpp
After I skip this line with tail command it works!!!:

/run-clang-format.py "$@" 2>&1 |tail -n +2 | \
reviewdog -name=clang-format-lint-action -f=diff -tee \
              -reporter=github-pr-review \
              -filter-mode=nofilter \
              -fail-on-error=true \
              -level=error \

hope this can help other people