Mercurial > hg
view tests/test-oldcgi.t @ 49568:da48f170d203
rust-status: query fs traversal metadata lazily
Currently, any time the status algorithm needs to read a directory from the
filesystem (because the stat-only optimization is not available), it also
stats each directory entry eagerly.
Stat'ing the entries is only needed in a few cases (like when checking
the mtime of a directory for caching): this patch creates a wrapper struct
`DirEntry` that only stats the directory entry it represents when needed.
Excerpt of an `strace` before this change on Mozilla Central:
```
openat(AT_FDCWD, ".", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=3540, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55dc970bd440 /* 139 entries */, 32768) = 5072
statx(3, ".hg", AT_STATX_SYNC_AS_STAT|AT_SYMLINK_NOFOLLOW, STATX_ALL, {stx_mask=STATX_ALL|STATX_MNT_ID, stx_attributes=0, stx_mode=S_IFDIR|0755, stx_size=772, ...}) = 0
[... 135 other successful `statx` calls]
getdents64(3, 0x55dc970bd440 /* 0 entries */, 32768) = 0
close(3) = 0
```
After this change:
```
openat(AT_FDCWD, ".", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=3540, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x561567c10190 /* 139 entries */, 32768) = 5072
getdents64(3, 0x561567c10190 /* 0 entries */, 32768) = 0
close(3) = 0
```
author | Raphaël Gomès <rgomes@octobus.net> |
---|---|
date | Wed, 19 Oct 2022 12:38:06 +0200 |
parents | f5cb822625cc |
children | d5cd1fd690f3 |
line wrap: on
line source
#require no-msys # MSYS will translate web paths as if they were file paths This tests if CGI files from before d0db3462d568 still work. $ hg init test $ cat >hgweb.cgi <<HGWEB > #!"$PYTHON" > # > # An example CGI script to use hgweb, edit as necessary > > import cgitb, os, sys > cgitb.enable() > > # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install > from mercurial import hgweb > > h = hgweb.hgweb(b"test", b"Empty test repository") > h.run() > HGWEB $ chmod 755 hgweb.cgi $ cat >hgweb.config <<HGWEBDIRCONF > [paths] > test = test > HGWEBDIRCONF $ cat >hgwebdir.cgi <<HGWEBDIR > #!"$PYTHON" > # > # An example CGI script to export multiple hgweb repos, edit as necessary > > import cgitb, sys > cgitb.enable() > > # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install > from mercurial import hgweb > > # The config file looks like this. You can have paths to individual > # repos, collections of repos in a directory tree, or both. > # > # [paths] > # virtual/path = /real/path > # virtual/path = /real/path > # > # [collections] > # /prefix/to/strip/off = /root/of/tree/full/of/repos > # > # collections example: say directory tree /foo contains repos /foo/bar, > # /foo/quux/baz. Give this config section: > # [collections] > # /foo = /foo > # Then repos will list as bar and quux/baz. > > # Alternatively you can pass a list of ('virtual/path', '/real/path') tuples > # or use a dictionary with entries like 'virtual/path': '/real/path' > > h = hgweb.hgwebdir(b"hgweb.config") > h.run() > HGWEBDIR $ chmod 755 hgwebdir.cgi $ . "$TESTDIR/cgienv" $ "$PYTHON" hgweb.cgi > page1 $ "$PYTHON" hgwebdir.cgi > page2 $ PATH_INFO="/test/" $ PATH_TRANSLATED="/var/something/test.cgi" $ REQUEST_URI="/test/test/" $ SCRIPT_URI="http://hg.omnifarious.org/test/test/" $ SCRIPT_URL="/test/test/" $ "$PYTHON" hgwebdir.cgi > page3 $ grep -i error page1 page2 page3 [1]