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view tests/test-tools.t @ 40176:41263df08109
wireprotov2: change how revisions are specified to changesetdata
Right now, we have a handful of arguments for specifying the revisions
whose data should be returned. Defining how all these arguments
interact when various combinations are present is difficult.
This commit establishes a new, generic mechanism for specifying
revisions. Instead of a hodgepodge of arguments defining things, we
have a list of dicts that specify revision selectors. The final set
of revisions is a union of all these selectors.
We implement support for specifying revisions based on:
* An explicit list of changeset revisions
* An explicit list of changeset revisions plus ancestry depth
* A DAG range between changeset roots and heads
If you squint hard enough, this problem has already been solved by
revsets. But I'm reluctant to expose revsets to the wire protocol
because that would require servers to implement a revset parser.
Plus there are security and performance implications: the set
of revision selectors needs to be narrowly and specifically tailored
for what is appropriate to be executing on a server. Perhaps there
would be a way for us to express the "parse tree" of a revset
query, for example. I'm not sure. We can explore this space another
time. For now, the new mechanism should bring sufficient flexibility
while remaining relatively simple.
The selector "types" are prefixed with "changeset" because I plan
to add manifest and file-flavored selectors as well. This will enable
us to e.g. select file revisions based on a range of changeset
revisions.
Differential Revision: https://phab.mercurial-scm.org/D4979
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Mon, 08 Oct 2018 18:17:12 -0700 |
parents | 5abc47d4ca6b |
children | 9172bd49cedc |
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Tests of the file helper tool $ f -h ?sage: f [options] [filenames] (glob) ?ptions: (glob) -h, --help show this help message and exit -t, --type show file type (file or directory) -m, --mode show file mode -l, --links show number of links -s, --size show size of file -n NEWER, --newer=NEWER check if file is newer (or same) -r, --recurse recurse into directories -S, --sha1 show sha1 hash of the content --sha256 show sha256 hash of the content -M, --md5 show md5 hash of the content -D, --dump dump file content -H, --hexdump hexdump file content -B BYTES, --bytes=BYTES number of characters to dump -L LINES, --lines=LINES number of lines to dump -q, --quiet no default output $ mkdir dir $ cd dir $ f --size size=0 $ echo hello | f --md5 --size size=6, md5=b1946ac92492d2347c6235b4d2611184 $ f foo foo: file not found $ echo foo > foo $ f foo foo: $ f --sha1 foo foo: sha1=f1d2d2f924e986ac86fdf7b36c94bcdf32beec15 $ f --sha256 foo foo: sha256=b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c #if symlink $ f foo --mode foo: mode=644 #endif #if no-windows $ "$PYTHON" $TESTDIR/seq.py 10 > bar #else Convert CRLF -> LF for consistency $ "$PYTHON" $TESTDIR/seq.py 10 | sed "s/$//" > bar #endif #if unix-permissions symlink $ chmod +x bar $ f bar --newer foo --mode --type --size --dump --links --bytes 7 bar: file, size=21, mode=755, links=1, newer than foo >>> 1 2 3 4 <<< no trailing newline #endif #if unix-permissions $ ln bar baz $ f bar -n baz -l --hexdump -t --sha1 --lines=9 -B 20 bar: file, links=2, newer than baz, sha1=612ca68d0305c821750a 0000: 31 0a 32 0a 33 0a 34 0a 35 0a 36 0a 37 0a 38 0a |1.2.3.4.5.6.7.8.| 0010: 39 0a |9.| $ rm baz #endif #if unix-permissions symlink $ ln -s yadda l $ f . --recurse -MStmsB4 .: directory with 3 files, mode=755 ./bar: file, size=21, mode=755, md5=3b03, sha1=612c ./foo: file, size=4, mode=644, md5=d3b0, sha1=f1d2 ./l: link, size=5, md5=2faa, sha1=af93 #endif $ f --quiet bar -DL 3 1 2 3 $ cd .. Yadda is a symlink $ f -qr dir -HB 17 dir: directory with 3 files (symlink !) dir: directory with 2 files (no-symlink !) dir/bar: 0000: 31 0a 32 0a 33 0a 34 0a 35 0a 36 0a 37 0a 38 0a |1.2.3.4.5.6.7.8.| 0010: 39 |9| dir/foo: 0000: 66 6f 6f 0a |foo.| dir/l: (symlink !) 0000: 79 61 64 64 61 |yadda| (symlink !)