test-revlog-raw: remove duplicated option

test-revlog-raw: fix "genbits" implementation The "genbits" implementation is actually incorrect. This patch fixes it. A good "genbits" implementation should pass the below assertion: n = 3 # or other number l = list(genbits(n)) assert 2**(n*2) == len(set((l[i]<<n)+l[i+1] for i in range(len(l)-1))) An assertion is added to make sure "genbits" won't work unexpectedly.

verify: fix length check According to the document added above, we should check L1 == L2, and the only way to get L1 in all cases is to call "rawsize()", and the only way to get L2 is to call "revision(raw=True)". Therefore the fix. Meanwhile there are still a lot of things about flagprocessor broken in revlog.py. Tests will be added after revlog.py gets fixed.

verify: document corner cases It seems a good idea to list all kinds of "surprises" and expected behavior to make the upcoming changes easier to understand. Note: the comment added does not reflect the actual behavior of the current code.

hgweb: expose a followlines UI in filerevision view In filerevision view (/file/<rev>/<fname>) we add some event listeners on mouse clicks of <span> elements in the <pre class="sourcelines"> block. Those listeners will capture a range of lines selected between two mouse clicks and a box inviting to follow the history of selected lines will then show up. Selected lines (i.e. the block of lines) get a CSS class which make them highlighted. Selection can be cancelled (and restarted) by either clicking on the cancel ("x") button in the invite box or clicking on any other source line. Also clicking twice on the same line will abort the selection and reset event listeners to restart the process. As a first step, this action is only advertised by the "cursor: cell" CSS rule on source lines elements as any other mechanisms would make the code significantly more complicated. This might be improved later. All JavaScript code lives in a new "linerangelog.js" file, sourced in filerevision template (only in "paper" style for now).

shelve: move ui.quiet manipulations to configoverride

revlog: add a fast path for revision(raw=False) If cache hit and flags are empty, no flag processor runs and "text" equals to "rawtext". So we check flags, and return rawtext. This resolves performance issue introduced by a previous patch.

revlog: make _addrevision only accept rawtext All 3 users of _addrevision use raw: - addrevision: passing rawtext to _addrevision - addgroup: passing rawtext and raw=True to _addrevision - clone: passing rawtext to _addrevision There is no real user using _addrevision(raw=False). On the other hand, _addrevision is low-level code dealing with raw revlog deltas and rawtexts. It should not transform rawtext to non-raw text. This patch removes the "raw" parameter from "_addrevision", and does some rename and doc change to make it clear that "_addrevision" expects rawtext. Archeology shows 2df983125d37 added "raw" flag to "_addrevision", follow-ups e12c0fa1f65b and c1b7b2285522 seem to make the flag unnecessary. test-revlog-raw.py no longer complains.

revlog: use raw revisions in clone test-revlog-raw.py now shows "clone test passed", but there is more to fix.

revlog: use raw revisions in revdiff See the added comment. revdiff is meant to output the raw delta that will be written to revlog. It should use raw. test-revlog-raw.py now shows "addgroupcopy test passed", but there is more to fix.

revlog: use raw content when building delta Using external content provided by flagprocessor when building revlog delta is wrong, because deltas are applied to raw contents in revlog. This patch fixes the above issue by adding "raw=True". test-revlog-raw.py now shows "local test passed", but there is more to fix.

revlog: fix _cache usage in revision() As documented at revlog.__init__, revlog._cache stores raw text. The current read and write usage of "_cache" in revlog.revision lacks of raw=True check. This patch fixes that by adding check about raw, and storing rawtext explicitly in _cache. Note: it may slow down cache hit code path when raw=False and flags=0. That performance issue will be fixed in a later patch. test-revlog-raw now points us to a new problem.

revlog: rename some "text"s to "rawtext" This makes code easier to understand. "_addrevision" is left untouched - it will be changed in a later patch.

revlog: clarify flagprocessor documentation The words "text", "newtext", "bool" could be confusing. Use explicit "text" or "rawtext" and document more about the "bool".

revlog: add a stronger test for raw processing There are some issues about revlog raw processing (flag processor). The test is relatively strong covering many cases. It will verify fixes.

hook: add hook name information to external hook While we are here, we can also add the hook name information to external hook.

hook: provide hook type information to external hook The python hooks have access to the hook type information. There is not reason for external hook to not be aware of it too. For the record my use case is to make sure a hook script is configured for the right type.

hook: use 'htype' in 'hook' Same rational as for 'runhooks', we fix the naming in another function.

hook: use 'htype' in 'runhooks' Same rational as for '_pythonhook', 'htype' is more accurate and less error prone. We just fixed an error from the 'name'/'hname' confusion and this should prevent them in the future.

hook: fix name used in untrusted message The name used in the message we issue when a hook is untrusted was using "name" which is actually the hook type and not the name of the hook.

hook: use "htype" as variable name in _pythonhook We rename 'name' to 'htype' because it fits the variable content better. Multiple python hooks already use 'htype' as a name for the argument. This makes the difference with "hname" clearer and the code less error prone.

run-tests: auto-replace 'TXNID' output Hooks related to the transaction are aware of the transaction id. By definition this txn-id is unique and different for each transaction. As a result it can never be predicted in test and always needs matching. As a result, touching any like with this data is annoying. We solve the problem once and for all by installing an automatic replacement. In test, this will now show as: TXNID=TXN:$ID$

largefiles: use readasstandin() to read hex hash directly from filectx BTW, C implementation of hexdigest() for SHA-1/256/512 returns hex hash in lower case, and doctest in Python standard hashlib assumes that, too. But it isn't explicitly described in API document or so. Therefore, we can't assume that hexdigest() always returns hex hash in lower case, for any hash algorithms, on any Python runtimes and versions. From point of view of that, it is reasonable for portability that 40800668e019 applies lower() on hex hash in overridefilemerge(). But on the other hand, in largefiles extension, there are still many code paths comparing between hex hashes or storing hex hash into standin file, without lower(). Switching to hash algorithm other than SHA-1 may be good chance to clarify our policy about hexdigest()-ed hash value string. - assume that hexdigest() always returns hex hash in lower case, or - apply lower() on hex hash in appropriate layers to ensure lower-case-ness of it for portability

largefiles: remove unused readstandin() Now, there is no client of readstandin().

largefiles: make copytostore() accept only changectx as the 2nd argument (API) As the name describes, the 2nd argument 'revorctx' of copytostore() can accept non-changectx value, for historical reason, But, since 10561eb97c7f, copyalltostore(), the only one copytostore() client in Mercurial source tree, always passes changectx as 'revorctx'. Therefore, it is reasonable to make copytostore() accept only changectx as the 2nd argument, now.

largefiles: remove unused keyword argument of copytostore() (API) AFAIK, 'uploaded' argument of copytostore() (or copytocache(), before renaming at c65f5b6e26d4) has been never used both on caller and callee sides, since official release of bundled largefiles extension.

largefiles: add copytostore() fstandin argument to replace readstandin() (API) copyalltostore(), only one caller of copytostore(), already knows standin file name of the target largefile. Therefore, passing it to copytostore() is more efficient than calculating it in copytostore() or readstandin().

largefiles: replace readstandin() by readasstandin() These code paths already (or should, for efficiency at repetition) know the target changectx and path of standin file.

largefiles: introduce readasstandin() to read hex hash from given filectx This will be used to centralize and encapsulate the logic to read hash from given (filectx of) standin file. readstandin() isn't suitable for this purpose, because there are some code paths, which want to read hex hash directly from filectx.

rebase: abort hg pull --rebase if rebase.requiredest is set (issue5514) Previously, the pull would succeed, but the subsequent rebase would fail due to the rebase.requiredest flag. Now abort earlier with a more useful error message.

rebase: demonstrate behavior with requiredest and pull --rebase

rebase: allow destination-free continue and abort (issue5513)

rebase: test to show brokenness with requiredest As shown in issue5513, --continue is broken when destination is required. This adds a patch that demonstates this silly behavior, which will be fixed in a future patch.

rebase: move destination test to new test file We'll be adding a lot more tests here, so it makes sense to have this in its own file now.

templatefilter: add support for 'long' to json() When disabling the '#requires serve' check in test-hgwebdir.t and running it on Windows, several 500 errors popped up when querying '?style=json', with the following in the error log: File "...\\mercurial\\templater.py", line 393, in runfilter "keyword '%s'") % (filt.func_name, dt)) Abort: template filter 'json' is not compatible with keyword 'lastchange' The swallowed exception at that point was: File "...\\mercurial\\templatefilters.py", line 242, in json raise TypeError('cannot encode type %s' % obj.__class__.__name__) TypeError: cannot encode type long This corresponds to 'lastchange' being populated by hgweb.common.get_stat(), which uses os.stat().st_mtime. os.stat_float_times() is being disabled in util, so the type for the times is 'long' on Windows, and 'int' on Linux.

hgweb: prefix line id by ctx shortnode in filelog when patches are shown When "patch" query parameter is present in requests to filelog view, line ids in patches diff are no longer unique in the page since several patches are shown on the same page. We now prefix line id by changeset shortnode when several patches are displayed in the same page to have unique line ids overall.

test-check-code: prevent files being added to the root directory Adding new files in the root directory is probably a mistake, and is usually discouraged [1]. The test catches it to avoid mistakes like [2]. Modify the test if files need to be added in the root. [1]: https://www.mercurial-scm.org/pipermail/mercurial-devel/2016-July/086442.html [2]: https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-March/095836.html

sslutil: clarify internal documentation I ran into this python issue with an incomplete certificate chain on Windows recently, and this is the clarification that came from that experimenting. The comment I left on the bug tracker [1] with a reference to the CPython code [2] indicates that the original problem I had is a different bug, but happened to be mentioned under issue20916 on the Python bug tracker. [1] https://bz.mercurial-scm.org/show_bug.cgi?id=5313#c7 [2] https://hg.python.org/cpython/file/v2.7.12/Modules/_ssl.c#l628

unionrepo: avoid unnecessary node -> rev conversion

bundlerepo: avoid unnecessary node -> rev conversion

revlog: avoid unnecessary node -> rev conversion

check-code: detect r.revision(r.node(rev)) revlog.revision takes either node or rev, but taking a rev is more efficient, because converting rev to node is just a seek and read. That's cheaper than converting node to rev, which may require O(n) walk in revlog index for the first times, and then triggering building the radix tree index. Even with the radix tree built, rev -> node is still faster than node -> rev because the radix tree requires more jumps in memory. So r.revision(r.node(rev)) should be changed to r.revision(rev). This patch adds a check-code rule to detect that.

hardlink: check directory's st_dev when copying files Previously, when copying a file, copyfiles will compare src's st_dev with dirname(dst)'s st_dev, to decide whether to enable hardlink or not. That could have issues on Linux's overlayfs, where stating directories could result in different st_dev from st_dev of stating files, even if both the directories and the files exist in the overlay's upperdir. This patch fixes it by checking dirname(src) instead. It's more consistent because we are checking directories for both src and dest. That fixes test-hardlinks.t running on common Docker setups.

hardlink: duplicate hardlink detection for copying files and directories A later patch will change one of them so they diverge.

hardlink: extract topic text logic of copyfiles The topic text shows whether it's "linking" or "copying", based on "hardlink" value. The function is extracted so a later patch can reuse it.

tests: add check to make sure summary works on Python 2

color: replace str() with pycompat.bytestr()

diff: slice over bytes to make sure conditions work normally Both of this are part of generating `hg diff` on python 3.

minirst: remove redundant _admonitions set As Yuya pointed out during a review a month ago, _admonitions and _admonitiontitles are largely redundant. With the last commit, they are exactly redundant. So, remove _admonitions and use _admonitiontitles.keys() instead.

minirst: remove "admonition" from _admonitions The "admonition" rst primitive is split into "specific" admonitions ("attention," "caution," etc) and the "generic" admonition ("admonition"). For more, see http://docutils.sourceforge.net/docs/ref/rst/directives.html#admonitions The _admonitions set and keys of the _admonitiontitles dict overlap exactly except _admonitions has an "admonition" entry. Nowhere in Mercurial is the "admonition" admonition directive used. Even if it were, it doesn't have a title, so it wouldn't be rendered correctly. So, let's remove "admonition" from the set of recognized admonition directives.

minirst: reindent _admonitiontitles I don't like the verical indent. While I was here, I cleaned up some whitespace and added a trailing comma on the last element.

tags: extract filenode filtering into its own function We'll also need to reuse this logic so we extract it into its own function. We document some of the logic in the process.

tags: extract tags computation from fnodes into its own function I'm about to introduce code that needs to perform such computation on "arbitrary" nodes. The logic is extracted into its own function for reuse.

tags: only return 'alltags' in 'findglobaltags' This is minor update along the way. We simplify the 'findglobaltags' function to only return the tags. Since no existing data is reused, we know that all tags returned are global and we can let the caller get that information if it cares about it.

tags: make argument 'tagtype' optional in '_updatetags' This is the next step from the previous changesets, we are now ready to use this function in a simpler way.

tags: reorder argument of '_updatetags' We move all arguments related to tagtype to the end, together. This will allow us to make these arguments optional and reuse of this logic for callers that do not care about the tag types.

tags: do not feed dictionaries to 'findglobaltags' The code asserts that these dictionary are empty. So we can be more explicit and have the function return the dictionaries directly.

tags: extract fnode retrieval into its own function My main goal here is to be able to reuse this logic easily. As a side effect this important logic is now insulated and the code is clearer.

hgweb: fix diff hunks filtering by line range in webutil.diffs() The previous clause for filter out a diff hunk was too restrictive. We need to consider the following cases (assuming linerange=(lb, ub) and the @s2,l2 hunkrange): <-(s2)--------(s2+l2)-> <-(lb)---(ub)-> <-(lb)---(ub)-> <-(lb)---(ub)-> previously on the first and last situations were considered. In test-hgweb-filelog.t, add a couple of lines at the beginning of file "b" so that the line range we will follow does not start at the beginning of file. This covers the change in aforementioned diff hunk filter clause.

summary: display obsolete state of parents Extend the "parent: " lines in summary to display "(obsolete)" when the parent is obsolete.