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[PATCH 06/15] sequencer: lib'ify read_populate_todo()

From
Johannes Schindelin <johannes.schindelin@gmx.de>
Date
Aug 23, 2016, 16:07 UTC
Message-ID
<0de75bbce8ade0c6e5cf87d3647faa71a89c6275.1471968378.git.johannes.schindelin@gmx.de>
In-Reply-To
<cover.1471968378.git.johannes.schindelin@gmx.de>

To be truly useful, the sequencer should never die() but always return an error.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 sequencer.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index a8c3a48..5f6b020 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -746,7 +746,7 @@ static int parse_insn_buffer(char *buf, struct commit_list **todo_list,
 	return 0;
 }
 
-static void read_populate_todo(struct commit_list **todo_list,
+static int read_populate_todo(struct commit_list **todo_list,
 			struct replay_opts *opts)
 {
 	struct strbuf buf = STRBUF_INIT;
@@ -754,18 +754,21 @@ static void read_populate_todo(struct commit_list **todo_list,
 
 	fd = open(git_path_todo_file(), O_RDONLY);
 	if (fd < 0)
-		die_errno(_("Could not open %s"), git_path_todo_file());
+		return error(_("Could not open %s (%s)"),
+			git_path_todo_file(), strerror(errno));
 	if (strbuf_read(&buf, fd, 0) < 0) {
 		close(fd);
 		strbuf_release(&buf);
-		die(_("Could not read %s."), git_path_todo_file());
+		return error(_("Could not read %s."), git_path_todo_file());
 	}
 	close(fd);
 
 	res = parse_insn_buffer(buf.buf, todo_list, opts);
 	strbuf_release(&buf);
 	if (res)
-		die(_("Unusable instruction sheet: %s"), git_path_todo_file());
+		return error(_("Unusable instruction sheet: %s"),
+			git_path_todo_file());
+	return 0;
 }
 
 static int populate_opts_cb(const char *key, const char *value, void *data)
@@ -1015,7 +1018,8 @@ static int sequencer_continue(struct replay_opts *opts)
 	if (!file_exists(git_path_todo_file()))
 		return continue_single_pick();
 	read_populate_opts(&opts);
-	read_populate_todo(&todo_list, opts);
+	if (read_populate_todo(&todo_list, opts))
+		return -1;
 
 	/* Verify that the conflict has been resolved */
 	if (file_exists(git_path_cherry_pick_head()) ||
-- 
2.10.0.rc1.99.gcd66998
Previous: Johannes SchindelinNext: Eric Sunshine
Message 8 of 91 in “Lib'ify quite a few functions in sequencer.c”
  1. 00/15 Lib'ify quite a few functions in sequencer.cJohannes Schindelin, Aug 23, 2016
  2. 07/15 sequencer: lib'ify read_populate_opts()Johannes Schindelin, Aug 23, 2016
  3. Junio C HamanoAug 26, 2016
  4. Johannes SchindelinAug 29, 2016
  5. 01/15 sequencer: lib'ify write_message()Johannes Schindelin, Aug 23, 2016
  6. Eric SunshineAug 24, 2016
  7. Johannes SchindelinAug 24, 2016
  8. 06/15 sequencer: lib'ify read_populate_todo()Johannes Schindelin, Aug 23, 2016
  9. Eric SunshineAug 24, 2016
  10. Johannes SchindelinAug 24, 2016
  11. Junio C HamanoAug 25, 2016
  12. Johannes SchindelinAug 26, 2016
  13. Junio C HamanoAug 26, 2016
  14. 04/15 sequencer: lib'ify prepare_revs()Johannes Schindelin, Aug 23, 2016
  15. Junio C HamanoAug 25, 2016
  16. Johannes SchindelinAug 26, 2016
  17. 02/15 sequencer: lib'ify do_recursive_merge()Johannes Schindelin, Aug 23, 2016
  18. Eric SunshineAug 24, 2016
  19. Johannes SchindelinAug 24, 2016
  20. 03/15 sequencer: lib'ify do_pick_commit()Johannes Schindelin, Aug 23, 2016
  21. Junio C HamanoAug 25, 2016
  22. Johannes SchindelinAug 26, 2016
  23. 13/15 sequencer: lib'ify sequencer_pick_revisions()Johannes Schindelin, Aug 23, 2016
  24. 15/15 sequencer: do not die() in fast_forward_to()Johannes Schindelin, Aug 23, 2016
  25. 08/15 sequencer: lib'ify walk_revs_populate_todo()Johannes Schindelin, Aug 23, 2016
  26. 05/15 sequencer: lib'ify read_and_refresh_cache()Johannes Schindelin, Aug 23, 2016
  27. Eric SunshineAug 24, 2016
  28. Johannes SchindelinAug 24, 2016
  29. Junio C HamanoAug 25, 2016
  30. 09/15 sequencer: lib'ify create_seq_dir()Johannes Schindelin, Aug 23, 2016
  31. Eric SunshineAug 24, 2016
  32. Johannes SchindelinAug 24, 2016
  33. 11/15 sequencer: lib'ify save_todo()Johannes Schindelin, Aug 23, 2016
  34. Eric SunshineAug 24, 2016
  35. Johannes SchindelinAug 24, 2016
  36. 10/15 sequencer: lib'ify save_head()Johannes Schindelin, Aug 23, 2016
  37. Eric SunshineAug 24, 2016
  38. Johannes SchindelinAug 24, 2016
  39. 12/15 sequencer: lib'ify save_opts()Johannes Schindelin, Aug 23, 2016
  40. Junio C HamanoAug 26, 2016
  41. Johannes SchindelinAug 29, 2016
  42. 14/15 sequencer: do not die() in do_pick_commit()Johannes Schindelin, Aug 23, 2016
  43. 00/14 Lib'ify quite a few functions in sequencer.cJohannes Schindelin, Aug 26, 2016
  44. 05/14 sequencer: lib'ify do_pick_commit()Johannes Schindelin, Aug 26, 2016
  45. Junio C HamanoAug 29, 2016
  46. 09/14 sequencer: lib'ify read_populate_todo()Johannes Schindelin, Aug 26, 2016
  47. 12/14 sequencer: lib'ify save_head()Johannes Schindelin, Aug 26, 2016
  48. Junio C HamanoAug 29, 2016
  49. Johannes SchindelinAug 30, 2016
  50. 11/14 sequencer: lib'ify create_seq_dir()Johannes Schindelin, Aug 26, 2016
  51. 10/14 sequencer: lib'ify read_populate_opts()Johannes Schindelin, Aug 26, 2016
  52. Junio C HamanoAug 29, 2016
  53. Junio C HamanoAug 29, 2016
  54. Johannes SchindelinAug 30, 2016
  55. Junio C HamanoAug 30, 2016
  56. 14/14 sequencer: lib'ify save_opts()Johannes Schindelin, Aug 26, 2016
  57. 04/14 sequencer: lib'ify do_recursive_merge()Johannes Schindelin, Aug 26, 2016
  58. 03/14 sequencer: lib'ify write_message()Johannes Schindelin, Aug 26, 2016
  59. Junio C HamanoAug 29, 2016
  60. Johannes SchindelinAug 30, 2016
  61. 13/14 sequencer: lib'ify save_todo()Johannes Schindelin, Aug 26, 2016
  62. 06/14 sequencer: lib'ify walk_revs_populate_todo()Johannes Schindelin, Aug 26, 2016
  63. 07/14 sequencer: lib'ify prepare_revs()Johannes Schindelin, Aug 26, 2016
  64. 08/14 sequencer: lib'ify read_and_refresh_cache()Johannes Schindelin, Aug 26, 2016
  65. Junio C HamanoAug 29, 2016
  66. Johannes SchindelinAug 30, 2016
  67. Junio C HamanoAug 30, 2016
  68. 01/14 sequencer: lib'ify sequencer_pick_revisions()Johannes Schindelin, Aug 26, 2016
  69. 02/14 sequencer: do not die() in do_pick_commit()Johannes Schindelin, Aug 26, 2016
  70. Junio C HamanoAug 29, 2016
  71. 00/17 Lib'ify quite a few functions in sequencer.cJohannes Schindelin, Sep 9, 2016
  72. 01/17 sequencer: lib'ify sequencer_pick_revisions()Johannes Schindelin, Sep 9, 2016
  73. 02/17 sequencer: do not die() in do_pick_commit()Johannes Schindelin, Sep 9, 2016
  74. 04/17 sequencer: lib'ify do_recursive_merge()Johannes Schindelin, Sep 9, 2016
  75. 05/17 sequencer: lib'ify do_pick_commit()Johannes Schindelin, Sep 9, 2016
  76. 06/17 sequencer: lib'ify walk_revs_populate_todo()Johannes Schindelin, Sep 9, 2016
  77. 09/17 sequencer: lib'ify read_populate_todo()Johannes Schindelin, Sep 9, 2016
  78. 08/17 sequencer: lib'ify read_and_refresh_cache()Johannes Schindelin, Sep 9, 2016
  79. 03/17 sequencer: lib'ify write_message()Johannes Schindelin, Sep 9, 2016
  80. 12/17 sequencer: lib'ify save_head()Johannes Schindelin, Sep 9, 2016
  81. 10/17 sequencer: lib'ify read_populate_opts()Johannes Schindelin, Sep 9, 2016
  82. 11/17 sequencer: lib'ify create_seq_dir()Johannes Schindelin, Sep 9, 2016
  83. 14/17 sequencer: lib'ify save_opts()Johannes Schindelin, Sep 9, 2016
  84. 16/17 lib'ify checkout_fast_forward_to()Johannes Schindelin, Sep 9, 2016
  85. Junio C HamanoSep 9, 2016
  86. Johannes SchindelinSep 11, 2016
  87. 13/17 sequencer: lib'ify save_todo()Johannes Schindelin, Sep 9, 2016
  88. 15/17 sequencer: lib'ify fast_forward_to()Johannes Schindelin, Sep 9, 2016
  89. 07/17 sequencer: lib'ify prepare_revs()Johannes Schindelin, Sep 9, 2016
  90. 17/17 sequencer: ensure to release the lock when we could not read the indexJohannes Schindelin, Sep 9, 2016
  91. Junio C HamanoSep 9, 2016

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