Mercurial > hg
view tests/test-copy.t @ 24545:9e0c67e84896
json: implement {tags} template
Tags is pretty easy to implement. Let's start there.
The output is slightly different from `hg tags -Tjson`. For reference,
the CLI has the following output:
[
{
"node": "e2049974f9a23176c2addb61d8f5b86e0d620490",
"rev": 29880,
"tag": "tip",
"type": ""
},
...
]
Our output has the format:
{
"node": "0aeb19ea57a6d223bacddda3871cb78f24b06510",
"tags": [
{
"node": "e2049974f9a23176c2addb61d8f5b86e0d620490",
"tag": "tag1",
"date": [1427775457.0, 25200]
},
...
]
}
"rev" is omitted because it isn't a reliable identifier. We shouldn't
be exposing them in web APIs and giving the impression it remotely
resembles a stable identifier. Perhaps we could one day hide this behind
a config option (it might be useful to expose when running servers
locally).
The "type" of the tag isn't defined because this information isn't yet
exposed to the hgweb templater (it could be in a follow-up) and because
it is questionable whether different types should be exposed at all.
(Should the web interface really be exposing "local" tags?)
We use an object for the outer type instead of Array for a few reasons.
First, it is extensible. If we ever need to throw more global properties
into the output, we can do that without breaking backwards compatibility
(property additions should be backwards compatible). Second, uniformity
in web APIs is nice. Having everything return objects seems much saner than
a mix of array and object. Third, there are security issues with arrays
in older browsers. The JSON web services world almost never uses arrays
as the main type for this reason.
Another possibly controversial part about this patch is how dates are
defined. While JSON has a Date type, it is based on the JavaScript Date
type, which is widely considered a pile of garbage. It is a non-starter
for this reason.
Many of Mercurial's built-in date filters drop seconds resolution. So
that's a non-starter as well, since we want the API to be lossless where
possible. rfc3339date, rfc822date, isodatesec, and date are all lossless.
However, they each require the client to perform string parsing on top of
JSON decoding. While date parsing libraries are pretty ubiquitous, some
languages don't have them out of the box. However, pretty much every
programming language can deal with UNIX timestamps (which are just
integers or floats). So, we choose to use Mercurial's internal date
representation, which in JSON is modeled as float seconds since UNIX
epoch and an integer timezone offset from UTC (keep in mind
JavaScript/JSON models all "Numbers" as double prevision floating point
numbers, so there isn't a difference between ints and floats in JSON).
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Tue, 31 Mar 2015 14:52:21 -0700 |
parents | 135b23868f45 |
children | 1ef96a3b8b89 |
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$ mkdir part1 $ cd part1 $ hg init $ echo a > a $ hg add a $ hg commit -m "1" $ hg status $ hg copy a b $ hg --config ui.portablefilenames=abort copy a con.xml abort: filename contains 'con', which is reserved on Windows: 'con.xml' [255] $ hg status A b $ hg sum parent: 0:c19d34741b0a tip 1 branch: default commit: 1 copied update: (current) $ hg --debug commit -m "2" committing files: b b: copy a:b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 committing manifest committing changelog committed changeset 1:93580a2c28a50a56f63526fb305067e6fbf739c4 we should see two history entries $ hg history -v changeset: 1:93580a2c28a5 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 files: b description: 2 changeset: 0:c19d34741b0a user: test date: Thu Jan 01 00:00:00 1970 +0000 files: a description: 1 we should see one log entry for a $ hg log a changeset: 0:c19d34741b0a user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 this should show a revision linked to changeset 0 $ hg debugindex a rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 3 ..... 0 b789fdd96dc2 000000000000 000000000000 (re) we should see one log entry for b $ hg log b changeset: 1:93580a2c28a5 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 this should show a revision linked to changeset 1 $ hg debugindex b rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 65 ..... 1 37d9b5d994ea 000000000000 000000000000 (re) this should show the rename information in the metadata $ hg debugdata b 0 | head -3 | tail -2 copy: a copyrev: b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 $ "$TESTDIR/md5sum.py" .hg/store/data/b.i 4999f120a3b88713bbefddd195cf5133 .hg/store/data/b.i $ hg cat b > bsum $ "$TESTDIR/md5sum.py" bsum 60b725f10c9c85c70d97880dfe8191b3 bsum $ hg cat a > asum $ "$TESTDIR/md5sum.py" asum 60b725f10c9c85c70d97880dfe8191b3 asum $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 2 files, 2 changesets, 2 total revisions $ cd .. $ mkdir part2 $ cd part2 $ hg init $ echo foo > foo should fail - foo is not managed $ hg mv foo bar foo: not copying - file is not managed abort: no files to copy [255] $ hg st -A ? foo $ hg add foo dry-run; print a warning that this is not a real copy; foo is added $ hg mv --dry-run foo bar foo has not been committed yet, so no copy data will be stored for bar. $ hg st -A A foo should print a warning that this is not a real copy; bar is added $ hg mv foo bar foo has not been committed yet, so no copy data will be stored for bar. $ hg st -A A bar should print a warning that this is not a real copy; foo is added $ hg cp bar foo bar has not been committed yet, so no copy data will be stored for foo. $ hg rm -f bar $ rm bar $ hg st -A A foo $ hg commit -m1 moving a missing file $ rm foo $ hg mv foo foo3 foo: deleted in working directory foo3 does not exist! $ hg up -qC . copy --after to a nonexistent target filename $ hg cp -A foo dummy foo: not recording copy - dummy does not exist dry-run; should show that foo is clean $ hg copy --dry-run foo bar $ hg st -A C foo should show copy $ hg copy foo bar $ hg st -C A bar foo shouldn't show copy $ hg commit -m2 $ hg st -C should match $ hg debugindex foo rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 5 ..... 0 2ed2a3912a0b 000000000000 000000000000 (re) $ hg debugrename bar bar renamed from foo:2ed2a3912a0b24502043eae84ee4b279c18b90dd $ echo bleah > foo $ echo quux > bar $ hg commit -m3 should not be renamed $ hg debugrename bar bar not renamed $ hg copy -f foo bar should show copy $ hg st -C M bar foo XXX: filtering lfilesrepo.status() in 3.3-rc causes the copy source to not be displayed. $ hg st -C --config extensions.largefiles= M bar foo $ hg commit -m3 should show no parents for tip $ hg debugindex bar rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 69 ..... 1 7711d36246cc 000000000000 000000000000 (re) 1 69 6 ..... 2 bdf70a2b8d03 7711d36246cc 000000000000 (re) 2 75 71 ..... 3 b2558327ea8d 000000000000 000000000000 (re) should match $ hg debugindex foo rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 5 ..... 0 2ed2a3912a0b 000000000000 000000000000 (re) 1 5 7 ..... 2 dd12c926cf16 2ed2a3912a0b 000000000000 (re) $ hg debugrename bar bar renamed from foo:dd12c926cf165e3eb4cf87b084955cb617221c17 should show no copies $ hg st -C copy --after on an added file $ cp bar baz $ hg add baz $ hg cp -A bar baz $ hg st -C A baz bar foo was clean: $ hg st -AC foo C foo but it's considered modified after a copy --after --force $ hg copy -Af bar foo $ hg st -AC foo M foo bar $ cd ..