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[PATCH 13/19] submodule.c: get_super_prefix_or_empty

From
Stefan Beller <sbeller@google.com>
Date
Mar 14, 2017, 21:46 UTC
Message-ID
<20170314214642.7701-14-sbeller@google.com>
In-Reply-To
<20170314214642.7701-1-sbeller@google.com>

In a later patch we need to use the super_prefix, and in case it is NULL we can just assume it is empty. Create a helper function for this.

We already have some use cases for this helper function, convert them, too.

Signed-off-by: Stefan Beller <sbeller@google.com>
---
 submodule.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/submodule.c b/submodule.c
index 0b2596e88a..3501497a78 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1239,6 +1239,14 @@ int bad_to_remove_submodule(const char *path, unsigned flags)
 	return ret;
 }
 
+static const char *get_super_prefix_or_empty()
+{
+	const char *s = get_super_prefix();
+	if (!s)
+		s = "";
+	return s;
+}
+
 static int find_first_merges(struct object_array *result, const char *path,
 		struct commit *a, struct commit *b)
 {
@@ -1438,11 +1446,8 @@ static void relocate_single_git_dir_into_superproject(const char *prefix,
 		die(_("could not create directory '%s'"), new_git_dir);
 	real_new_git_dir = real_pathdup(new_git_dir);
 
-	if (!prefix)
-		prefix = get_super_prefix();
-
 	fprintf(stderr, _("Migrating git directory of '%s%s' from\n'%s' to\n'%s'\n"),
-		prefix ? prefix : "", path,
+		get_super_prefix_or_empty(), path,
 		real_old_git_dir, real_new_git_dir);
 
 	relocate_gitdir(path, real_old_git_dir, real_new_git_dir);
@@ -1513,8 +1518,7 @@ void absorb_git_dir_into_superproject(const char *prefix,
 		if (flags & ~ABSORB_GITDIR_RECURSE_SUBMODULES)
 			die("BUG: we don't know how to pass the flags down?");
 
-		if (get_super_prefix())
-			strbuf_addstr(&sb, get_super_prefix());
+		strbuf_addstr(&sb, get_super_prefix_or_empty());
 		strbuf_addstr(&sb, path);
 		strbuf_addch(&sb, '/');
 
-- 
2.12.0.rc1.49.g0cfd38c5f6.dirty
Previous: Stefan BellerNext: Stefan Beller
Message 97 of 100 in “Checkout aware of Submodules!”
  1. 00/18 Checkout aware of Submodules!Stefan Beller, Mar 2, 2017
  2. 09/18 update submodules: add a config option to determine if submodules are updatedStefan Beller, Mar 2, 2017
  3. 02/18 lib-submodule-update.sh: do not use ./. as submodule remoteStefan Beller, Mar 2, 2017
  4. 10/18 submodules: introduce check to see whether to touch a submoduleStefan Beller, Mar 2, 2017
  5. 12/18 update submodules: add submodule_move_headStefan Beller, Mar 2, 2017
  6. 08/18 update submodules: add submodule config parsingStefan Beller, Mar 2, 2017
  7. 04/18 lib-submodule-update.sh: replace sha1 by hashStefan Beller, Mar 2, 2017
  8. 16/18 entry.c: update submodules when interestingStefan Beller, Mar 2, 2017
  9. 06/18 make is_submodule_populated gentlyStefan Beller, Mar 2, 2017
  10. 07/18 connect_work_tree_and_git_dir: safely create leading directoriesStefan Beller, Mar 2, 2017
  11. 17/18 builtin/checkout: add --recurse-submodules switchStefan Beller, Mar 2, 2017
  12. 18/18 builtin/read-tree: add --recurse-submodules switchStefan Beller, Mar 2, 2017
  13. 13/18 unpack-trees: pass old oid to verify_clean_submoduleStefan Beller, Mar 2, 2017
  14. 15/18 read-cache, remove_marked_cache_entries: wipe selected submodules.Stefan Beller, Mar 2, 2017
  15. 11/18 update submodules: move up prepare_submodule_repo_envStefan Beller, Mar 2, 2017
  16. 03/18 lib-submodule-update: teach test_submodule_content the -C <dir> flagStefan Beller, Mar 2, 2017
  17. Eric WongMar 2, 2017
  18. Stefan BellerMar 6, 2017
  19. Stefan BellerMar 6, 2017
  20. 05/18 lib-submodule-update.sh: define tests for recursing into submodulesStefan Beller, Mar 2, 2017
  21. 14/18 unpack-trees: check if we can perform the operation for submodulesStefan Beller, Mar 2, 2017
  22. 01/18 lib-submodule-update.sh: reorder create_lib_submodule_repoStefan Beller, Mar 2, 2017
  23. 00/18 Checkout aware of Submodules!Stefan Beller, Mar 6, 2017
  24. 03/18 lib-submodule-update: teach test_submodule_content the -C <dir> flagStefan Beller, Mar 6, 2017
  25. Junio C HamanoMar 6, 2017
  26. 10/18 submodules: introduce check to see whether to touch a submoduleStefan Beller, Mar 6, 2017
  27. 07/18 connect_work_tree_and_git_dir: safely create leading directoriesStefan Beller, Mar 6, 2017
  28. 02/18 lib-submodule-update.sh: do not use ./. as submodule remoteStefan Beller, Mar 6, 2017
  29. 17/18 builtin/checkout: add --recurse-submodules switchStefan Beller, Mar 6, 2017
  30. 01/18 lib-submodule-update.sh: reorder create_lib_submodule_repoStefan Beller, Mar 6, 2017
  31. 13/18 unpack-trees: pass old oid to verify_clean_submoduleStefan Beller, Mar 6, 2017
  32. 15/18 read-cache, remove_marked_cache_entries: wipe selected submodules.Stefan Beller, Mar 6, 2017
  33. Junio C HamanoMar 7, 2017
  34. Stefan BellerMar 7, 2017
  35. Junio C HamanoMar 8, 2017
  36. Stefan BellerMar 8, 2017
  37. Junio C HamanoMar 8, 2017
  38. 12/18 update submodules: add submodule_move_headStefan Beller, Mar 6, 2017
  39. 16/18 entry.c: update submodules when interestingStefan Beller, Mar 6, 2017
  40. Junio C HamanoMar 7, 2017
  41. Junio C HamanoMar 7, 2017
  42. Stefan BellerMar 7, 2017
  43. Junio C HamanoMar 8, 2017
  44. 11/18 update submodules: move up prepare_submodule_repo_envStefan Beller, Mar 6, 2017
  45. 04/18 lib-submodule-update.sh: replace sha1 by hashStefan Beller, Mar 6, 2017
  46. 14/18 unpack-trees: check if we can perform the operation for submodulesStefan Beller, Mar 6, 2017
  47. 05/18 lib-submodule-update.sh: define tests for recursing into submodulesStefan Beller, Mar 6, 2017
  48. Junio C HamanoMar 7, 2017
  49. 18/18 builtin/read-tree: add --recurse-submodules switchStefan Beller, Mar 6, 2017
  50. Junio C HamanoMar 7, 2017
  51. 08/18 update submodules: add submodule config parsingStefan Beller, Mar 6, 2017
  52. 06/18 make is_submodule_populated gentlyStefan Beller, Mar 6, 2017
  53. 09/18 update submodules: add a config option to determine if submodules are updatedStefan Beller, Mar 6, 2017
  54. 00/17 Checkout aware of Submodules!Stefan Beller, Mar 9, 2017
  55. 01/17 lib-submodule-update.sh: reorder create_lib_submodule_repoStefan Beller, Mar 9, 2017
  56. 08/17 update submodules: add submodule config parsingStefan Beller, Mar 9, 2017
  57. 03/17 lib-submodule-update: teach test_submodule_content the -C <dir> flagStefan Beller, Mar 9, 2017
  58. 10/17 submodules: introduce check to see whether to touch a submoduleStefan Beller, Mar 9, 2017
  59. 12/17 update submodules: add submodule_move_headStefan Beller, Mar 9, 2017
  60. Brandon WilliamsMar 9, 2017
  61. Junio C HamanoMar 12, 2017
  62. Brandon WilliamsMar 13, 2017
  63. Stefan BellerMar 13, 2017
  64. Brandon WilliamsMar 9, 2017
  65. Brandon WilliamsMar 9, 2017
  66. 07/17 connect_work_tree_and_git_dir: safely create leading directoriesStefan Beller, Mar 9, 2017
  67. Brandon WilliamsMar 9, 2017
  68. Junio C HamanoMar 12, 2017
  69. 05/17 lib-submodule-update.sh: define tests for recursing into submodulesStefan Beller, Mar 9, 2017
  70. 16/17 builtin/checkout: add --recurse-submodules switchStefan Beller, Mar 9, 2017
  71. 17/17 builtin/read-tree: add --recurse-submodules switchStefan Beller, Mar 9, 2017
  72. 15/17 entry.c: create submodules when interestingStefan Beller, Mar 9, 2017
  73. 09/17 update submodules: add a config option to determine if submodules are updatedStefan Beller, Mar 9, 2017
  74. 11/17 update submodules: move up prepare_submodule_repo_envStefan Beller, Mar 9, 2017
  75. 13/17 unpack-trees: pass old oid to verify_clean_submoduleStefan Beller, Mar 9, 2017
  76. 04/17 lib-submodule-update.sh: replace sha1 by hashStefan Beller, Mar 9, 2017
  77. 14/17 unpack-trees: check if we can perform the operation for submodulesStefan Beller, Mar 9, 2017
  78. 02/17 lib-submodule-update.sh: do not use ./. as submodule remoteStefan Beller, Mar 9, 2017
  79. 06/17 make is_submodule_populated gentlyStefan Beller, Mar 9, 2017
  80. 00/19 Checkout aware of Submodules!Stefan Beller, Mar 14, 2017
  81. 01/19 connect_work_tree_and_git_dir: safely create leading directoriesStefan Beller, Mar 14, 2017
  82. 02/19 submodule--helper.c: remove duplicate codeStefan Beller, Mar 14, 2017
  83. 04/19 lib-submodule-update.sh: do not use ./. as submodule remoteStefan Beller, Mar 14, 2017
  84. 07/19 lib-submodule-update.sh: define tests for recursing into submodulesStefan Beller, Mar 14, 2017
  85. 05/19 lib-submodule-update: teach test_submodule_content the -C <dir> flagStefan Beller, Mar 14, 2017
  86. 11/19 submodules: introduce check to see whether to touch a submoduleStefan Beller, Mar 14, 2017
  87. 17/19 entry.c: create submodules when interestingStefan Beller, Mar 14, 2017
  88. 14/19 update submodules: add submodule_move_headStefan Beller, Mar 14, 2017
  89. 18/19 builtin/checkout: add --recurse-submodules switchStefan Beller, Mar 14, 2017
  90. 16/19 unpack-trees: check if we can perform the operation for submodulesStefan Beller, Mar 14, 2017
  91. 09/19 update submodules: add submodule config parsingStefan Beller, Mar 14, 2017
  92. 19/19 builtin/read-tree: add --recurse-submodules switchStefan Beller, Mar 14, 2017
  93. 15/19 unpack-trees: pass old oid to verify_clean_submoduleStefan Beller, Mar 14, 2017
  94. 06/19 lib-submodule-update.sh: replace sha1 by hashStefan Beller, Mar 14, 2017
  95. 08/19 make is_submodule_populated gentlyStefan Beller, Mar 14, 2017
  96. 12/19 update submodules: move up prepare_submodule_repo_envStefan Beller, Mar 14, 2017
  97. 13/19 submodule.c: get_super_prefix_or_emptyStefan Beller, Mar 14, 2017
  98. 03/19 lib-submodule-update.sh: reorder create_lib_submodule_repoStefan Beller, Mar 14, 2017
  99. 10/19 update submodules: add a config option to determine if submodules are updatedStefan Beller, Mar 14, 2017
  100. Brandon WilliamsMar 15, 2017

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