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[PATCH v16 Part II 3/8] wrapper: move is_empty_file() and rename it as is_empty_or_missing_file()

From
Pranit Bauva <pranit.bauva@gmail.com>
Date
Oct 27, 2017, 15:06 UTC
Message-ID
<0102015f5e5ee273-03ff1203-7c84-4260-bda7-c27a87646517-000000@eu-west-1.amazonses.com>
In-Reply-To
<0102015f5e5ee171-f30f4868-886f-47a1-a4e4-b4936afc545d-000000@eu-west-1.amazonses.com>

is_empty_file() can help to refactor a lot of code. This will be very helpful in porting "git bisect" to C.

Suggested-by: Torsten Bögershausen <tboegi@web.de>
Mentored-by: Lars Schneider <larsxschneider@gmail.com>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com>
---
 builtin/am.c | 20 ++------------------
 cache.h      |  3 +++
 wrapper.c    | 13 +++++++++++++
 3 files changed, 18 insertions(+), 18 deletions(-)
diff --git a/builtin/am.c b/builtin/am.c
index 4b6f1534f8840..2afaaabcdbecf 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -34,22 +34,6 @@
 #include "packfile.h"
 
 /**
- * Returns 1 if the file is empty or does not exist, 0 otherwise.
- */
-static int is_empty_file(const char *filename)
-{
-	struct stat st;
-
-	if (stat(filename, &st) < 0) {
-		if (errno == ENOENT)
-			return 1;
-		die_errno(_("could not stat %s"), filename);
-	}
-
-	return !st.st_size;
-}
-
-/**
  * Returns the length of the first line of msg.
  */
 static int linelen(const char *msg)
@@ -1298,7 +1282,7 @@ static int parse_mail(struct am_state *state, const char *mail)
 		goto finish;
 	}
 
-	if (is_empty_file(am_path(state, "patch"))) {
+	if (is_empty_or_missing_file(am_path(state, "patch"))) {
 		printf_ln(_("Patch is empty."));
 		die_user_resolve(state);
 	}
@@ -1880,7 +1864,7 @@ static void am_run(struct am_state *state, int resume)
 		resume = 0;
 	}
 
-	if (!is_empty_file(am_path(state, "rewritten"))) {
+	if (!is_empty_or_missing_file(am_path(state, "rewritten"))) {
 		assert(state->rebasing);
 		copy_notes_for_rebase(state);
 		run_post_rewrite_hook(state);
diff --git a/cache.h b/cache.h
index 25adcf681531c..f05056a2d7fa1 100644
--- a/cache.h
+++ b/cache.h
@@ -1958,4 +1958,7 @@ void sleep_millisec(int millisec);
  */
 void safe_create_dir(const char *dir, int share);
 
+/* Return 1 if the file is empty or does not exists, 0 otherwise. */
+extern int is_empty_or_missing_file(const char *filename);
+
 #endif /* CACHE_H */
diff --git a/wrapper.c b/wrapper.c
index 61aba0b5c1bec..21c0fee2db459 100644
--- a/wrapper.c
+++ b/wrapper.c
@@ -690,3 +690,16 @@ int xgethostname(char *buf, size_t len)
 		buf[len - 1] = 0;
 	return ret;
 }
+
+int is_empty_or_missing_file(const char *filename)
+{
+	struct stat st;
+
+	if (stat(filename, &st) < 0) {
+		if (errno == ENOENT)
+			return 1;
+		die_errno(_("could not stat %s"), filename);
+	}
+
+	return !st.st_size;
+}

--
https://github.com/git/git/pull/420
Previous: Ramsay JonesNext: Pranit Bauva
Message 17 of 50 in “bisect--helper: `bisect_reset` shell function in C”
  1. 1/8 bisect--helper: `bisect_reset` shell function in CPranit Bauva, Oct 27, 2017
  2. 7/8 bisect--helper: `bisect_start` shell function partially in CPranit Bauva, Oct 27, 2017
  3. Stephan BeyerOct 30, 2017
  4. Pranit BauvaOct 30, 2017
  5. SZEDER GáborFeb 16, 2018
  6. 2/8 bisect--helper: `bisect_write` shell function in CPranit Bauva, Oct 27, 2017
  7. Martin ÅgrenOct 27, 2017
  8. Pranit BauvaOct 30, 2017
  9. Johannes SchindelinNov 23, 2018
  10. Martin ÅgrenNov 23, 2018
  11. Johannes SchindelinNov 26, 2018
  12. Junio C HamanoOct 27, 2017
  13. Pranit BauvaOct 30, 2017
  14. Stephan BeyerOct 30, 2017
  15. Stephan BeyerOct 30, 2017
  16. Ramsay JonesNov 8, 2017
  17. 3/8 wrapper: move is_empty_file() and rename it as is_empty_or_missing_file()Pranit Bauva, Oct 27, 2017
  18. 5/8 bisect--helper: `bisect_next_check` shell function in CPranit Bauva, Oct 27, 2017
  19. Martin ÅgrenOct 27, 2017
  20. Pranit BauvaOct 30, 2017
  21. Ramsay JonesNov 8, 2017
  22. Stephan BeyerNov 12, 2017
  23. Stephan BeyerNov 12, 2017
  24. Stephan BeyerNov 12, 2017
  25. Junio C HamanoNov 13, 2017
  26. 8/8 t6030: make various test to pass GETTEXT_POISON testsPranit Bauva, Oct 27, 2017
  27. 4/8 bisect--helper: `check_and_set_terms` shell function in CPranit Bauva, Oct 27, 2017
  28. Ramsay JonesNov 8, 2017
  29. 6/8 bisect--helper: `get_terms` & `bisect_terms` shell function in CPranit Bauva, Oct 27, 2017
  30. Martin ÅgrenOct 27, 2017
  31. Pranit BauvaOct 30, 2017
  32. Stephan BeyerOct 30, 2017
  33. Pranit BauvaOct 30, 2017
  34. Ramsay JonesNov 8, 2017
  35. Pranit BauvaOct 27, 2017
  36. Junio C HamanoOct 27, 2017
  37. Pranit BauvaOct 30, 2017
  38. Stephan BeyerOct 30, 2017
  39. Pranit BauvaOct 30, 2017
  40. Ramsay JonesNov 8, 2017
  41. 0/7 git bisect: convert from shell to CTanushree Tumane via GitGitGadget, Jan 2, 2019
  42. 1/7 bisect--helper: `bisect_reset` shell function in CPranit Bauva via GitGitGadget, Jan 2, 2019
  43. 2/7 bisect--helper: `bisect_write` shell function in CPranit Bauva via GitGitGadget, Jan 2, 2019
  44. 4/7 bisect--helper: `check_and_set_terms` shell function in CPranit Bauva via GitGitGadget, Jan 2, 2019
  45. 5/7 bisect--helper: `bisect_next_check` shell function in CPranit Bauva via GitGitGadget, Jan 2, 2019
  46. 7/7 bisect--helper: `bisect_start` shell function partially in CPranit Bauva via GitGitGadget, Jan 2, 2019
  47. 3/7 wrapper: move is_empty_file() and rename it as is_empty_or_missing_file()Pranit Bauva via GitGitGadget, Jan 2, 2019
  48. 6/7 bisect--helper: `get_terms` & `bisect_terms` shell function in CPranit Bauva via GitGitGadget, Jan 2, 2019
  49. Ramsay JonesJan 3, 2019
  50. TANUSHREE TUMANEJan 7, 2019

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