packaging: extract packagelib for common code from builddeb and buildrpm

builddeb: new script for building a deb package Future work will allow us to use docker to build debs. Right now this doesn't install any config files. I plan to do that as a followup, but getting something basic and working checked in seems like more of a priority than getting everything done in one big step. This also does not create a source deb yet. I haven't looked into that process. Note that this declares incompatibility with the `mercurial-common` package. It's typical for debian packages to be split between architecture-independent bits and native bits, meaning the python bits downstream live in mercurial-common and the c extension bits live in mercurial. We don't do that because we want to (ideally) give users a single deb file to install.

dockerlib: fix initcontainer for boot2docker users This allows me to build rpm packages using boot2docker on my Mac. It's probably a very fragile hack, but it seems to work well enough for now that I felt it was worth sharing.

dockerlib: extract initcontainer() method This helps contain all the logic around creating containers.

dockerlib: start extracting common functions for setting up docker I'm about to start interacting with docker for Debian packaging too, so it's time to centralize this so that any bugfixes I figure out apply to both codepaths.

run-test: ensure the test ports are available before launching test I'm running into a systematic issue because there is always some port taken in the 1500-wide range of ports used by the test (3 for each test file).

templater: strip single backslash before quotation mark in quoted template db7463aa080f fixed the issue of double escapes, but it made the following template fail with syntax error because of <\">. Strictly speaking, <\"> appears to be invalid in non-string part, but we are likely to escape <"> if surrounded by quotes, and we are used to write such templates by trial and error. [templates] sl = "{tags % \"{ifeq(tag,'tip','',label('log.tag', ' {tag}'))}\"}" So, for backward compatibility between 2.8.1 and 3.4, a single backslash before quotation mark is stripped only in quoted template. We don't care for <\"> in string literal in quoted template, which never worked as expected before. template result --------- ------------------------ {\"\"} parse error "{""}" {""} -> <> "{\"\"}" {""} -> <> {"\""} {"\""} -> <"> '{"\""}' {"\""} -> <"> "{"\""}" parse error (don't care)

run-tests: implement Test._testMethodName This methods is needed internally by utilities like __repr__. I do not see any harm in having it declared. Any actual attempt to use it to call a test would crash, but at least random debug print in the test runner will no longer crash. Another approach would have been to redefine the __repr__ function, but I think it a good thing to have some respect for the base class API.

test-subrepo-git: ignore pax_global_header when listing archive 5115d03440f4 is adding a new tar call but forgot to filter out the pax_global_header file that some tar versions write. This is similar to what happened in 5dda6c708138.

test-subrepo-recursion: glob out all the date listed by unzip -l This date output is unstable (01-01-1980 vs 1980-01-01). As the test is not about the modification date, we glob the data out. Caught by buildbot.

bookmarks: remove unused updatecurrentbookmark function (API) This function was not used anywhere in core and there is no indication that it is used elsewhere either.

changelog: drop unnecessary override of "hasnode" revlog.hasnode() calls self.rev(node) that takes filtering into account.

test-run-test: unset run-test specific environment variables Otherwise variable set for the real test run interfere with the test runner tests.

histedit: fix --continue when rules are finished If histedit failed after all the rules were complete (for instance, if there was an exception in the cleanup phase), you couldn't --continue because it was unable to pop a rule. Let's just skip the rule execution phase of --continue if there are no more rules.

histedit: fix serializing of None backupfile If the histedit backupfile was None (like if evolve is enabled) it would get serialized as 'None' into the state file. Later if the histedit was aborted and the top most commit was unreachable (ex: if it was obsolete or stripped), histedit would try to unbundle the backupfile and try to read .hg/None. This fixes it to not serialize None. Since it only happens with evolve, I'm not sure how to add test coverage here.

merge with stable

treemanifest: set requires at repo creation time, ignore config after The very next changeset will start writing one revlog per directory when tree manifests are enabled. That is backwards incompatible, so it requires .hg/requires to be updated. Just like with generaldelta, we want to update .hg/requires only when the repo is created. Updating ..hg/requires is bad for repos on shared disk. Instead, those who do want to upgrade a repo to using treemanifest (or manifestv2, etc) can run hg clone --config experimental.treemanifest repo clone which will create a new repo with the requirement set. Unlike the case of e.g. generaldelta, it will not rewrite the changesets, since tree manifests hash differently.

remove: use ctx.hasdir(f) instead of 'f in ctx.dirs()' This speeds up 'hg remove python/README' on the Firefox repo from 2.479s to 0.664s with lazily loaded treemanifests (which is not yet in core) and has no measurable effect on flat manifests.

largefiles: drop os.path.join() in subrepo archive override This is related to 41cd8171e58f, but not required for that to function correctly because 'prefix' always ends with '/', so os.path.join(prefix, _path) simply concatenates the strings. Take the opportunity to drop the os.path usage, and avoid confusion by using the same pattern as the overridden subrepo method.

archive: drop the leading '.' path component from the prefix (issue4634) Unix utilities like tar will happily prefix the files it packs with './', but annoyingly, Windows Explorer will not show these packed files when it opens the archive. Since there doesn't seem to be a point in including './' in the path names, just drop it. The default 'hg archive' prefix is the basename of the archive, so specifying '.' allows for that default to be disabled completely.

hgweb: bring back infinite scroll in shortlog of paper style Since fdf7794be41d, column headers are wrapped by <thead> element, so the first and only <tbody> contains changelog data. I got the following error without this patch: Uncaught TypeError: Cannot read property 'lastElementChild' of null scrollHandler @ mercurial.js:375

merge with stable

extensions: clear aftercallbacks after execution (issue4646) It was reported that enabling pager without color could cause a hang. Inserting print statements revealed that the callbacks in extensions._aftercallbacks were being invoked twice. extensions.loadall can be called multiple times. If entries in extensions._aftercallbacks linger between calls, this could result in double execution of the callbacks. This can lead to unwanted behavior. The reproduce steps in the bug seem to only occur when the output of a command is less than the size of the current screen. This is not something that can easily be tested. I verified the test case works with this patch and that pager and color interaction continues to work. Since we have no existing automated tests for pager, this sadly appears to be the best testing I can do.

templater: strictly parse leading backslashes of '{' (issue4569) (BC) Because double backslashes are processed as a string escape sequence, '\\{' should start the template syntax. On the other hand, r'' disables any sort of \-escapes, so r'\{' can go either way, never start the template syntax or always start it. I simply chose the latter, which means r'\{' is the same as '\\{'.

templater: do not process \-escapes at parsestring() (issue4290) This patch brings back pre-2.8.1 behavior. The result of parsestring() is stored in templater's cache, t.cache, and then it is parsed as a template string by compiletemplate(). So t.cache should keep an unparsed string no matter if it is sourced from config value. Otherwise backslashes would be processed twice. The test vector is borrowed from 64b4f0cd7336.

bookmarks: rename bookmarkcurrent to activebookmark (API) Today, the terms 'active' and 'current' are interchangeably used throughout the codebase in reference to the active bookmark (the bookmark that will be updated with the next commit). This leads to confusion among developers and users. This patch is part of a series to standardize the usage to 'active' throughout the mercurial codebase and user interface.

bookmarks: rename readcurrent to readactive (API) Today, the terms 'active' and 'current' are interchangeably used throughout the codebase in reference to the active bookmark (the bookmark that will be updated with the next commit). This leads to confusion among developers and users. This patch is part of a series to standardize the usage to 'active' throughout the mercurial codebase and user interface.

bookmarks: rename setcurrent to activate (API) Today, the terms 'active' and 'current' are interchangeably used throughout the codebase in reference to the active bookmark (the bookmark that will be updated with the next commit). This leads to confusion among developers and users. This patch is part of a series to standardize the usage to 'active' throughout the mercurial codebase and user interface.

bookmarks: rename unsetcurrent to deactivate (API) Today, the terms 'active' and 'current' are interchangeably used throughout the codebase in reference to the active bookmark (the bookmark that will be updated with the next commit). This leads to confusion among developers and users. This patch is part of a series to standardize the usage to 'active' throughout the mercurial codebase and user interface.

subrepo: correctly handle git subdirectory status change 'git diff-index' by default does not recurse into subdirectories when changes are found. As a result, the directory is shown as changed, rather than the files in this directory. Adding '-r' results in recursing until the blobs themselves are checked.