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[PATCH 5/3] fast-import: allow cat command with empty path

From
Jonathan Nieder <jrnieder@gmail.com>
Date
Sep 8, 2010, 03:17 UTC
Message-ID
<20100908031744.GB23409@capella.cs.uchicago.edu>
In-Reply-To
<20100905031528.GA2344@burratino>

Rather than erroring out, treat an empty path as the path to the root of a tree so frontends can be simplified a little.

While at it, fix a typo in an error message: the cat command is used to examine paths within trees, not branches.

Cc: David Barr <david.barr@cordelta.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
---
Would this be helpful?  I imagine it would make tree access by
pathname a bit simpler, and I found myself tempted to try it.
The test from the next patch exercises this.
 fast-import.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/fast-import.c b/fast-import.c
index 099f63e..f3c4123 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -2702,9 +2702,13 @@ static void quoted_path_sha1(unsigned char sha1[20], struct tree_entry *root,
 		die("Invalid path: %s", line);
 	if (*x)
 		die("Garbage after path: %s", line);
+	if (uq.len == 0) {
+		hashcpy(sha1, root->versions[1].sha1);
+		return;
+	}
 	tree_content_get(root, uq.buf, &leaf);
 	if (!leaf.versions[1].mode)
-		die("Path %s not in branch", uq.buf);
+		die("Path %s not in tree", uq.buf);
 	hashcpy(sha1, leaf.versions[1].sha1);
 }
 
-- 
1.7.3.rc0.6.g7505a.dirty
Previous: Jonathan NiederNext: Jonathan Nieder
Message 62 of 75 in “Teach fast-import to import subtrees named by tree id”
  1. Teach fast-import to import subtrees named by tree idJonathan Nieder, Jul 1, 2010
  2. Teach fast-import to print the id of each imported commitJonathan Nieder, Jul 1, 2010
  3. Sverre RabbelierJul 2, 2010
  4. Jonathan NiederJul 2, 2010
  5. Sverre RabbelierJul 2, 2010
  6. Jonathan NiederJul 2, 2010
  7. Sverre RabbelierJul 2, 2010
  8. Jonathan NiederJul 2, 2010
  9. Sverre RabbelierJul 2, 2010
  10. Sam VilainJul 4, 2010
  11. Jonathan NiederJul 4, 2010
  12. Sam VilainJul 4, 2010
  13. Jonathan NiederJul 4, 2010
  14. Ramkumar RamachandraAug 17, 2010
  15. 0/3 fast-import: give importers access to the object storeJonathan Nieder, Sep 5, 2010
  16. 1/3 t9300 (fast-import): style tweaksJonathan Nieder, Sep 5, 2010
  17. 00/24 Re: [PATCH 1/3] t9300 (fast-import): style tweaksJonathan Nieder, Sep 24, 2010
  18. 01/24 t9300 (fast-import): avoid exiting early on failureJonathan Nieder, Sep 24, 2010
  19. 02/24 t9300 (fast-import): avoid hard-coded object namesJonathan Nieder, Sep 24, 2010
  20. 03/24 t9300 (fast-import): guard "export large marks" test setupJonathan Nieder, Sep 24, 2010
  21. Ramkumar RamachandraSep 24, 2010
  22. Raja R HarinathSep 24, 2010
  23. Ramkumar RamachandraSep 24, 2010
  24. Raja R HarinathSep 24, 2010
  25. 04/24 t9300 (fast-import): check exit status from upstream of pipesJonathan Nieder, Sep 24, 2010
  26. 05/24 t9300 (fast-import): check exit status from command substitutionsJonathan Nieder, Sep 24, 2010
  27. 06/24 t9300 (fast-import): use test_cmp in place of test $(foo) = $(bar)Jonathan Nieder, Sep 24, 2010
  28. 07/24 t9300 (fast-import): use tabs to indentJonathan Nieder, Sep 24, 2010
  29. Ramkumar RamachandraSep 24, 2010
  30. Jonathan NiederSep 24, 2010
  31. 08/24 t9300 (fast-import), series A: re-indentJonathan Nieder, Sep 24, 2010
  32. Sverre RabbelierSep 24, 2010
  33. Jonathan NiederSep 24, 2010
  34. 09/24 t9300 (fast-import), series B: re-indentJonathan Nieder, Sep 24, 2010
  35. 10/24 t9300 (fast-import), series C: re-indentJonathan Nieder, Sep 24, 2010
  36. 11/24 t9300 (fast-import), series D: re-indentJonathan Nieder, Sep 24, 2010
  37. 12/24 t9300 (fast-import), series E: re-indentJonathan Nieder, Sep 24, 2010
  38. 13/24 t9300 (fast-import), series F: re-indentJonathan Nieder, Sep 24, 2010
  39. 14/24 t9300 (fast-import), series H: re-indentJonathan Nieder, Sep 24, 2010
  40. 15/24 t9300 (fast-import), series I: re-indentJonathan Nieder, Sep 24, 2010
  41. 16/24 t9300 (fast-import), series J: re-indentJonathan Nieder, Sep 24, 2010
  42. 17/24 t9300 (fast-import), series K: re-indentJonathan Nieder, Sep 24, 2010
  43. 18/24 t9300 (fast-import), series L: re-indentJonathan Nieder, Sep 24, 2010
  44. 19/24 t9300 (fast-import), series M: re-indentJonathan Nieder, Sep 24, 2010
  45. 20/24 t9300 (fast-import), series N: re-indentJonathan Nieder, Sep 24, 2010
  46. 21/24 t9300 (fast-import), series O: re-indentJonathan Nieder, Sep 24, 2010
  47. 22/24 t9300 (fast-import), series P: re-indentJonathan Nieder, Sep 24, 2010
  48. 23/24 t9300 (fast-import), series Q: re-indentJonathan Nieder, Sep 24, 2010
  49. 24/24 t9300 (fast-import), series R: re-indentJonathan Nieder, Sep 24, 2010
  50. svn-fe statusJonathan Nieder, Sep 25, 2010
  51. Sverre RabbelierSep 25, 2010
  52. Jonathan NiederSep 27, 2010
  53. Sverre RabbelierSep 27, 2010
  54. 2/3 Teach fast-import to print the id of each imported commitJonathan Nieder, Sep 5, 2010
  55. 3/3 fast-import: Let importers retrieve the objects being writtenJonathan Nieder, Sep 5, 2010
  56. Ramkumar RamachandraSep 5, 2010
  57. Sverre RabbelierSep 5, 2010
  58. Ramkumar RamachandraSep 5, 2010
  59. Sverre RabbelierSep 5, 2010
  60. Jonathan NiederSep 5, 2010
  61. 4/3 fast-import: typofixJonathan Nieder, Sep 8, 2010
  62. 5/3 fast-import: allow cat command with empty pathJonathan Nieder, Sep 8, 2010
  63. 6/3 fast-import: Allow cat requests at arbitrary points in streamJonathan Nieder, Sep 8, 2010
  64. Sverre RabbelierSep 8, 2010
  65. Jonathan NiederSep 8, 2010
  66. Ramkumar RamachandraSep 8, 2010
  67. Sam VilainSep 16, 2010
  68. Sverre RabbelierSep 17, 2010
  69. Jonathan NiederSep 24, 2010
  70. Sverre RabbelierSep 24, 2010
  71. Jonathan NiederSep 25, 2010
  72. Sverre RabbelierSep 25, 2010
  73. Sverre RabbelierJul 2, 2010
  74. Jonathan NiederJul 2, 2010
  75. Ramkumar RamachandraJul 2, 2010

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