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[PATCH 3/4] am: drop tty requirement for --interactive

From
Jeff King <peff@peff.net>
Date
May 20, 2019, 12:11 UTC
Message-ID
<20190520121113.GC11212@sigill.intra.peff.net>
In-Reply-To
<20190520120636.GA12634@sigill.intra.peff.net>

We have required that the stdin of "am --interactive" be a tty since a1451104ac (git-am: interactive should fail gracefully., 2005-10-12). However, this isn't strictly necessary, and makes the tool harder to test (and is unlike all of our other --interactive commands).

The goal of that commit was to make sure that somebody does not do:
  git am --interactive <mbox

and cause us to read commands from the mbox. But we can simply check up front for this case and complain before entering the interactive loop.

Technically this disallows:
  git am --interactive </dev/null

where our lack of patches means we would never prompt for anything, and so the old code would not notice our lack of tty (and now we'd die early). But since such a command is totally pointless, it's no loss.

Signed-off-by: Jeff King <peff@peff.net>
---
 builtin/am.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/builtin/am.c b/builtin/am.c
index 47ad7a5a70..ea16b844f1 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -1643,9 +1643,6 @@ static int do_interactive(struct am_state *state)
 {
 	assert(state->msg);
 
-	if (!isatty(0))
-		die(_("cannot be interactive without stdin connected to a terminal."));
-
 	for (;;) {
 		char reply[64];
 
@@ -2334,6 +2331,9 @@ int cmd_am(int argc, const char **argv, const char *prefix)
 				argv_array_push(&paths, mkpath("%s/%s", prefix, argv[i]));
 		}
 
+		if (state.interactive && !paths.argc)
+			die(_("interactive mode requires patches on the command line"));
+
 		am_setup(&state, patch_format, paths.argv, keep_cr);
 
 		argv_array_clear(&paths);
-- 
2.22.0.rc1.539.g7bfcdfe86d
Previous: Jeff KingNext: Jeff King
Message 6 of 30 in “Abort (core dumped)”
  1. Alejandro SanchezMay 20, 2019
  2. Jeff KingMay 20, 2019
  3. 0/4 fix BUG() with "git am -i --resolved"Jeff King, May 20, 2019
  4. 1/4 am: simplify prompt response handlingJeff King, May 20, 2019
  5. 2/4 am: read interactive input from stdinJeff King, May 20, 2019
  6. 3/4 am: drop tty requirement for --interactiveJeff King, May 20, 2019
  7. Jeff KingMay 20, 2019
  8. Johannes SchindelinMay 23, 2019
  9. Jeff KingMay 24, 2019
  10. 0/2 prompt.c: split up git_prompt(), read from /dev/tty, not STDINÆvar Arnfjörð Bjarmason, Nov 2, 2021
  11. 1/2 prompt.c: split up the password and non-password handlingÆvar Arnfjörð Bjarmason, Nov 2, 2021
  12. Jeff KingNov 3, 2021
  13. Junio C HamanoNov 3, 2021
  14. 2/2 prompt.c: add and use a GIT_TEST_TERMINAL_PROMPT=trueÆvar Arnfjörð Bjarmason, Nov 2, 2021
  15. Jeff KingNov 3, 2021
  16. Ævar Arnfjörð BjarmasonNov 3, 2021
  17. Jeff KingNov 4, 2021
  18. Junio C HamanoNov 3, 2021
  19. Johannes SchindelinNov 4, 2021
  20. Jeff KingNov 4, 2021
  21. Jeff KingNov 4, 2021
  22. 4/4 am: fix --interactive HEAD tree resolutionJeff King, May 20, 2019
  23. Johannes SchindelinMay 23, 2019
  24. Jeff KingMay 24, 2019
  25. 4/4 am: fix --interactive HEAD tree resolutionJeff King, May 24, 2019
  26. Johannes SchindelinMay 28, 2019
  27. Jeff KingMay 28, 2019
  28. Johannes SchindelinMay 29, 2019
  29. Alejandro SanchezSep 26, 2019
  30. Jeff KingSep 26, 2019

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