catch TERM signal in command processor
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catch TERM signal in command processor
This keeps kill from interrupting a transaction without cleanup.
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Setting up Mercurial:
Note: some distributions fails to include bits of distutils by
default, you'll need python-dev to install. You'll also need a C
compiler and a 3-way merge tool like merge, tkdiff, or kdiff3.
First, unpack the source:
$ tar xvzf mercurial-<ver>.tar.gz
$ cd mercurial-<ver>
To install system-wide:
$ python setup.py install # change python to python2.3 if 2.2 is default
To install in your home directory (~/bin and ~/lib, actually), run:
$ python2.3 setup.py install --home=~
$ export PYTHONPATH=${HOME}/lib/python # add this to your .bashrc
$ export PATH=${HOME}/bin:$PATH #
You'll also need to set up a tool to handle three-way merges:
$ export HGMERGE=tkmerge # customize this
And finally:
$ hg # test installation, show help
If you get complaints about missing modules, you probably haven't set
PYTHONPATH correctly.
Setting up a Mercurial project:
$ cd linux/
$ hg init # creates .hg
$ hg status # show changes between repo and working dir
$ hg diff # generate a unidiff
$ hg addremove # add all unknown files and remove all missing files
$ hg commit # commit all changes, edit changelog entry
$ hg export # export a changeset as a diff
Mercurial will look for a file named .hgignore in the root of your
repository contains a set of regular expressions to ignore in file
paths.
Mercurial commands:
$ hg history # show changesets
$ hg log Makefile # show commits per file
$ hg checkout # check out the tip revision
$ hg checkout <id> # check out a specified changeset
# IDs can be tags, revision numbers, or unique
# subsets of changeset hash numbers
$ hg add foo # add a new file for the next commit
$ hg remove bar # mark a file as removed
$ hg verify # check repo integrity
$ hg tags # show current tags
$ hg annotate [files] # show changeset numbers for each file line
Branching and merging:
$ cd ..
$ mkdir linux-work
$ cd linux-work
$ hg branch ../linux # create a new branch
$ hg checkout # populate the working directory
$ <make changes>
$ hg commit
$ cd ../linux
$ hg merge ../linux-work # pull changesets from linux-work
Importing patches:
Fast:
$ patch < ../p/foo.patch
$ hg addremove
$ hg commit
Faster:
$ patch < ../p/foo.patch
$ hg commit `lsdiff -p1 ../p/foo.patch`
Fastest:
$ cat ../p/patchlist | xargs hg import -p1 -b ../p
Exporting a patch:
(make changes)
$ hg commit
$ hg tip
28237:747a537bd090880c29eae861df4d81b245aa0190
$ hg export 28237 > foo.patch # export changeset 28237
Network support:
# pull the self-hosting hg repo
foo$ hg init
foo$ hg merge http://selenic.com/hg/
foo$ hg checkout # hg co works too
# export your current repo via HTTP with browsable interface
foo$ hg serve -n "My repo" -p 80
# merge changes from a remote machine
bar$ hg merge http://foo/
bar$ hg co # checkout the result
# Set up a CGI server on your webserver
foo$ cp hgweb.cgi ~/public_html/hg-linux/index.cgi
foo$ emacs ~/public_html/hg-linux/index.cgi # adjust the defaults
Symbolic repository names:
Mercurial uses an optional file called ~/.hgpaths to track repo
locations symbolically. Simply add a line with the name, a space, and
a URL:
foo$ echo "main http://selenic.com/hg/" >> ~/.hgpaths
foo$ hg merge main
foo$ hg co