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authorÆvar Arnfjörð Bjarmason <avarab@gmail.com>2017-03-27 11:16:55 +0000
committerJunio C Hamano <gitster@pobox.com>2017-03-27 10:45:44 -0700
commit244ea1b5e49081530e0ba5c717db1fdbe2bda73e (patch)
tree3eedc89a9c46e10287f70645a3e4c8c796326895
parent034667a458057ef1e571973a38ebbdf0045a63e9 (diff)
downloadgit-244ea1b5e49081530e0ba5c717db1fdbe2bda73e.tar.gz
rev-parse: match @{upstream}, @{u} and @{push} case-insensitivelyab/case-insensitive-upstream-and-push-marker
Change the revision parsing logic to match @{upstream}, @{u} & @{push} case-insensitively. Before this change supplying anything except the lower-case forms emits an "unknown revision or path not in the working tree" error. This change makes upper-case & mixed-case versions equivalent to the lower-case versions. The use-case for this is being able to hold the shift key down while typing @{u} on certain keyboard layouts, which makes the sequence easier to type, and reduces cases where git throws an error at the user where it could do what he means instead. These suffixes now join various other suffixes & special syntax documented in gitrevisions(7) that matches case-insensitively. A table showing the status of the various forms documented there before & after this patch is shown below. The key for the table is: - CI = Case Insensitive - CIP = Case Insensitive Possible (without ambiguities) - AG = Accepts Garbage (.e.g. @{./.4.minutes./.}) Before this change: |----------------+-----+------+-----| | What? | CI? | CIP? | AG? | |----------------+-----+------+-----| | @{<date>} | Y | Y | Y | | @{upstream} | N | Y | N | | @{push} | N | Y | N | |----------------+-----+------+-----| After it: |----------------+-----+------+-----| | What? | CI? | CIP? | AG? | |----------------+-----+------+-----| | @{<date>} | Y | Y | Y | | @{upstream} | Y | Y | N | | @{push} | Y | Y | N | |----------------+-----+------+-----| The ^{<type>} suffix is not made case-insensitive, because other places that take <type> like "cat-file -t <type>" do want them case sensitively (after all we never declared that type names are case insensitive). Allowing case-insensitive typename only with this syntax will make the resulting Git as a whole inconsistent. This change was independently authored to scratch a longtime itch, but when I was about to submit it I discovered that a similar patch had been submitted unsuccessfully before by Conrad Irwin in August 2011 as "rev-parse: Allow @{U} as a synonym for @{u}" (<1313287071-7851-1-git-send-email-conrad.irwin@gmail.com>). The tests for this patch are more exhaustive than in the 2011 submission. The starting point for them was to first change the code to only support upper-case versions of the existing words, seeing what broke, and amending the breaking tests to check upper case & mixed case as appropriate, and where not redundant to other similar tests. The implementation itself is equivalent. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--Documentation/revisions.txt6
-rw-r--r--sha1_name.c2
-rwxr-xr-xt/t1507-rev-parse-upstream.sh15
-rwxr-xr-xt/t1514-rev-parse-push.sh8
4 files changed, 23 insertions, 8 deletions
diff --git a/Documentation/revisions.txt b/Documentation/revisions.txt
index ba11b9c95e..75d211f1a8 100644
--- a/Documentation/revisions.txt
+++ b/Documentation/revisions.txt
@@ -96,7 +96,8 @@ some output processing may assume ref names in UTF-8.
refers to the branch that the branch specified by branchname is set to build on
top of (configured with `branch.<name>.remote` and
`branch.<name>.merge`). A missing branchname defaults to the
- current one.
+ current one. These suffixes are also accepted when spelled in uppercase, and
+ they mean the same thing no matter the case.
'<branchname>@\{push\}', e.g. 'master@\{push\}', '@\{push\}'::
The suffix '@\{push}' reports the branch "where we would push to" if
@@ -122,6 +123,9 @@ refs/remotes/myfork/mybranch
Note in the example that we set up a triangular workflow, where we pull
from one location and push to another. In a non-triangular workflow,
'@\{push}' is the same as '@\{upstream}', and there is no need for it.
++
+This suffix is also accepted when spelled in uppercase, and means the same
+thing no matter the case.
'<rev>{caret}', e.g. 'HEAD{caret}, v1.5.1{caret}0'::
A suffix '{caret}' to a revision parameter means the first parent of
diff --git a/sha1_name.c b/sha1_name.c
index cda9e49b12..d9d1b2fce8 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -549,7 +549,7 @@ static inline int at_mark(const char *string, int len,
for (i = 0; i < nr; i++) {
int suffix_len = strlen(suffix[i]);
if (suffix_len <= len
- && !memcmp(string, suffix[i], suffix_len))
+ && !strncasecmp(string, suffix[i], suffix_len))
return suffix_len;
}
return 0;
diff --git a/t/t1507-rev-parse-upstream.sh b/t/t1507-rev-parse-upstream.sh
index 46ef1f22dc..b23c4e3fab 100755
--- a/t/t1507-rev-parse-upstream.sh
+++ b/t/t1507-rev-parse-upstream.sh
@@ -46,11 +46,14 @@ error_message () {
}
test_expect_success '@{upstream} resolves to correct full name' '
- test refs/remotes/origin/master = "$(full_name @{upstream})"
+ test refs/remotes/origin/master = "$(full_name @{upstream})" &&
+ test refs/remotes/origin/master = "$(full_name @{UPSTREAM})" &&
+ test refs/remotes/origin/master = "$(full_name @{UpSTReam})"
'
test_expect_success '@{u} resolves to correct full name' '
- test refs/remotes/origin/master = "$(full_name @{u})"
+ test refs/remotes/origin/master = "$(full_name @{u})" &&
+ test refs/remotes/origin/master = "$(full_name @{U})"
'
test_expect_success 'my-side@{upstream} resolves to correct full name' '
@@ -60,6 +63,8 @@ test_expect_success 'my-side@{upstream} resolves to correct full name' '
test_expect_success 'upstream of branch with @ in middle' '
full_name fun@ny@{u} >actual &&
echo refs/remotes/origin/side >expect &&
+ test_cmp expect actual &&
+ full_name fun@ny@{U} >actual &&
test_cmp expect actual
'
@@ -96,12 +101,14 @@ test_expect_success 'not-tracking@{u} fails' '
test_expect_success '<branch>@{u}@{1} resolves correctly' '
test_commit 6 &&
(cd clone && git fetch) &&
- test 5 = $(commit_subject my-side@{u}@{1})
+ test 5 = $(commit_subject my-side@{u}@{1}) &&
+ test 5 = $(commit_subject my-side@{U}@{1})
'
test_expect_success '@{u} without specifying branch fails on a detached HEAD' '
git checkout HEAD^0 &&
- test_must_fail git rev-parse @{u}
+ test_must_fail git rev-parse @{u} &&
+ test_must_fail git rev-parse @{U}
'
test_expect_success 'checkout -b new my-side@{u} forks from the same' '
diff --git a/t/t1514-rev-parse-push.sh b/t/t1514-rev-parse-push.sh
index 623a32aa6e..788cc91e45 100755
--- a/t/t1514-rev-parse-push.sh
+++ b/t/t1514-rev-parse-push.sh
@@ -24,12 +24,16 @@ test_expect_success 'setup' '
test_expect_success '@{push} with default=nothing' '
test_config push.default nothing &&
- test_must_fail git rev-parse master@{push}
+ test_must_fail git rev-parse master@{push} &&
+ test_must_fail git rev-parse master@{PUSH} &&
+ test_must_fail git rev-parse master@{PuSH}
'
test_expect_success '@{push} with default=simple' '
test_config push.default simple &&
- resolve master@{push} refs/remotes/origin/master
+ resolve master@{push} refs/remotes/origin/master &&
+ resolve master@{PUSH} refs/remotes/origin/master &&
+ resolve master@{pUSh} refs/remotes/origin/master
'
test_expect_success 'triangular @{push} fails with default=simple' '