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[PATCH 4/6] combine-diff: treat --shortstat like --stat

From
Jeff King <peff@peff.net>
Date
Jan 24, 2019, 12:34 UTC
Message-ID
<20190124123450.GD11354@sigill.intra.peff.net>
In-Reply-To
<20190124122603.GA10415@sigill.intra.peff.net>

The --stat of a combined diff is defined as the first-parent stat, going all the way back to 965f803c32 (combine-diff: show diffstat with the first parent., 2006-04-17).

Naturally, we gave --numstat the same treatment in 74e2abe5b7 (diff --numstat, 2006-10-12).

But --shortstat, which is really just the final line of --stat, does nothing, which produces confusing results:

  $ git show --oneline --stat eab7584e37
  eab7584e37 Merge branch 'en/show-ref-doc-fix'
   Documentation/git-show-ref.txt | 2 +-
   1 file changed, 1 insertion(+), 1 deletion(-)
  $ git show --oneline --shortstat eab7584e37
  eab7584e37 Merge branch 'en/show-ref-doc-fix'
  [nothing! We'd expect to see the "1 file changed..." line]
This patch teaches combine-diff to treats the two formats identically.
Reported-by: David Turner <novalis@novalis.org>
Signed-off-by: Jeff King <peff@peff.net>
---
 combine-diff.c                                 | 1 +
 t/t4013-diff-various.sh                        | 1 +
 t/t4013/diff.diff-tree_--cc_--shortstat_master | 4 ++++
 3 files changed, 6 insertions(+)
 create mode 100644 t/t4013/diff.diff-tree_--cc_--shortstat_master
diff --git a/combine-diff.c b/combine-diff.c
index b1d259d5a0..83ec3dfffa 100644
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -1325,6 +1325,7 @@ static const char *path_path(void *obj)
  * Diff stat formats which we always compute solely against the first parent.
  */
 #define STAT_FORMAT_MASK (DIFF_FORMAT_NUMSTAT \
+			  | DIFF_FORMAT_SHORTSTAT \
 			  | DIFF_FORMAT_DIFFSTAT)
 
 /* find set of paths that every parent touches */
diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh
index 7d985ff6b1..9ccdf08730 100755
--- a/t/t4013-diff-various.sh
+++ b/t/t4013-diff-various.sh
@@ -239,6 +239,7 @@ diff-tree --cc --stat --summary master
 # stat summary should show the diffstat and summary with the first parent
 diff-tree -c --stat --summary side
 diff-tree --cc --stat --summary side
+diff-tree --cc --shortstat master
 # improved by Timo's patch
 diff-tree --cc --patch-with-stat master
 # improved by Timo's patch
diff --git a/t/t4013/diff.diff-tree_--cc_--shortstat_master b/t/t4013/diff.diff-tree_--cc_--shortstat_master
new file mode 100644
index 0000000000..a4ca42df2a
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--cc_--shortstat_master
@@ -0,0 +1,4 @@
+$ git diff-tree --cc --shortstat master
+59d314ad6f356dd08601a4cd5e530381da3e3c64
+ 2 files changed, 5 insertions(+)
+$
-- 
2.20.1.842.g8986705066
Previous: Jeff KingNext: David Turner
Message 12 of 19 in “some diff --cc --stat fixes”
  1. 0/6 some diff --cc --stat fixesJeff King, Jan 24, 2019
  2. 1/6 t4006: resurrect commented-out testsJeff King, Jan 24, 2019
  3. Stefan BellerJan 24, 2019
  4. 2/6 diff: clear emitted_symbols flag after useJeff King, Jan 24, 2019
  5. Stefan BellerJan 24, 2019
  6. Jeff KingJan 24, 2019
  7. Junio C HamanoJan 24, 2019
  8. Stefan BellerJan 24, 2019
  9. Jeff KingJan 24, 2019
  10. Jeff KingJan 24, 2019
  11. 3/6 combine-diff: factor out stat-format maskJeff King, Jan 24, 2019
  12. 4/6 combine-diff: treat --shortstat like --statJeff King, Jan 24, 2019
  13. David TurnerJan 24, 2019
  14. Stefan BellerJan 24, 2019
  15. 5/6 combine-diff: treat --summary like --statJeff King, Jan 24, 2019
  16. Stefan BellerJan 24, 2019
  17. Jeff KingJan 24, 2019
  18. 6/6 combine-diff: treat --dirstat like --statJeff King, Jan 24, 2019
  19. Stefan BellerJan 24, 2019

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