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List: git
Subject: [PATCH 6/9] get_short_oid: learn to disambiguate by ^{blob}
From: Ævar Arnfjörð Bjarmason <avarab () gmail ! com>
Date: 2018-04-30 22:07:31
Message-ID: 20180430220734.30133-7-avarab () gmail ! com
[Download RAW message or body]
The disambiguation logic had all the pieces necessary to only print
out those blobs that were ambiguous, but they hadn't been connected.
The initial logic was added in daba53aeaf ("sha1_name.c: add support
for disambiguating other types", 2012-07-02), and when the flags were
propagated in 8a10fea49b ("get_sha1: propagate flags to child
functions", 2016-09-26) GET_OID_BLOB wasn't added to lookup_flags.
Before this change requests for blobs were simply ignored:
$ git rev-parse e8f2^{blob}
error: short SHA1 e8f2 is ambiguous
hint: The candidates are:
hint: e8f2650052 tag v2.17.0
hint: e8f21caf94 commit 2013-06-24 - bash prompt: print unique detached HEAD \
abbreviated object name hint: e8f26250fa commit 2017-02-03 - Merge pull request \
#996 from jeffhostetler/jeffhostetler/register_rename_src hint: e8f2bc0c06 commit \
2015-05-10 - Documentation: note behavior for multiple remote.url entries hint: \
e8f2093055 tree hint: e8f25a3a50 tree
hint: e8f28d537c tree
hint: e8f2cf6ec0 tree
hint: e8f21d02f7 blob
hint: e8f21d577c blob
hint: e8f2867228 blob
hint: e8f2a35526 blob
e8f2^{blob}
[...]
But now we'll do the right thing and only print the blobs:
$ git rev-parse e8f2^{blob}
error: short SHA1 e8f2 is ambiguous
hint: The candidates are:
hint: e8f21d02f7 blob
hint: e8f21d577c blob
hint: e8f2867228 blob
hint: e8f2a35526 blob
e8f2^{blob}
[...]
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
sha1-name.c | 2 ++
t/t1512-rev-parse-disambiguation.sh | 6 +++++-
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/sha1-name.c b/sha1-name.c
index 68d5f65362..023f9471a8 100644
--- a/sha1-name.c
+++ b/sha1-name.c
@@ -971,6 +971,8 @@ static int peel_onion(const char *name, int len, struct object_id \
*oid, lookup_flags |= GET_OID_TAG;
else if (expected_type == OBJ_TREE)
lookup_flags |= GET_OID_TREEISH;
+ else if (expected_type == OBJ_BLOB)
+ lookup_flags |= GET_OID_BLOB;
if (get_oid_1(name, sp - name - 2, &outer, lookup_flags))
return -1;
diff --git a/t/t1512-rev-parse-disambiguation.sh \
b/t/t1512-rev-parse-disambiguation.sh index c7ceda2f21..08ae73e2a5 100755
--- a/t/t1512-rev-parse-disambiguation.sh
+++ b/t/t1512-rev-parse-disambiguation.sh
@@ -337,7 +337,11 @@ test_expect_success C_LOCALE_OUTPUT 'ambiguity hints respect \
type' ' test_line_count = 7 hints &&
git rev-parse 000000000^{tag} >stdout &&
test_line_count = 1 stdout &&
- grep -q ^0000000000f8f stdout
+ grep -q ^0000000000f8f stdout &&
+ test_must_fail git rev-parse 000000000^{blob} 2>stderr &&
+ grep ^hint: stderr >hints &&
+ # 5 blobs plus intro line &&
+ test_line_count = 6 hints
'
test_expect_success C_LOCALE_OUTPUT 'failed type-selector still shows hint' '
--
2.17.0.290.gded63e768a
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