Mercurial > hg
view doc/hg.1.txt @ 190:3dd5ce2fddb6
merge: short-circuit search for merge into empty repo
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merge: short-circuit search for merge into empty repo
We should have 3 cases for merge:
- - we have no changesets
- - we have less than half the changesets
- - we have more than half the changesets
For no changesets, we can immediately tell that we need everything.
This happens when we initially branch from a remote repo, so we simply shortcircuit the search and grab everything from the root
When we're actually tracking a project, we should generally have most
of the changesets, so the current search algorithm should minimize
searching.
It should rarely occur that upstreams gets far ahead of us, in which
case, we suffer a longer search.
manifest hash: eabd55841b03225176ea72b985aad36431a438a9
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author | mpm@selenic.com |
---|---|
date | Sun, 29 May 2005 09:06:43 -0800 |
parents | 089594a5bbde |
children | 48827121af7e |
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HG(1) ===== Matt Mackall <mpm@selenic.com> v0.5, 27 May 2005 NAME ---- hg - command line interface to the Mercurial source code management system SYNOPSIS -------- 'hg' [-v -d -q -y] <command> [command options] [files] DESCRIPTION ----------- The hg(1) command provides a command line interface to the Mercurial system. NOTE ---- Many of the hg commands are not yet subdirectory and/or working directory aware. This means that some commands will only work in the top level repository directory or will only accept paths and filenames relative to the top level. Merges and commits, in particular, should be done in the top-level directory. OPTIONS ------- --debug, -d:: enable debugging output --quiet, -q:: suppress output --verbose, -v:: enable additional output --noninteractive, -y:: do not prompt, assume 'yes' for any required answers COMMAND ELEMENTS ---------------- files ...:: indicates one or more filename or relative path filenames path:: indicates a path on the local machine revision:: indicates a changeset which can be specified as a changeset id (int), a tag, or a unique substring of the changeset hash value repository path:: is either the pathname of a local repository of the URI of a remote repository. There are two available URI protocols, http:// which is fast and the old-http:// protocol which is much slower but does not require python on the web host. COMMANDS -------- add [files ...]:: add the given files to the repository. Note that this just schedules the files for addition at the next hg commit time. addremove:: add all new files and remove all missing files from the repository. new files are ignored if they match any of the patterns in .hgignore annotate [-r revision -u -n -c] [files ...]:: list the files with each line showing the revision id responsible for that line. -u will add the author to the revision id, -c will print the changeset hash, and -n will ... branch <path>:: create a new branch of the repository indicated by path in the current directory. Note that there should not be a repository already initialized in the current directory checkout [revision]:: check out the indicated version of the repository into the working directory. Note that currently no merge occurs with changed files in the working dir. commit:: commit all changed files in the working dir to the repository. This uses the EDITOR environment variable to bring up an editor to add a commit comment. diff [-r revision] [-r revision] [files ...]:: generate a unified diff of the indicated files. If there are no revisions specified, the working directory file is compared to the tip, one revision specified indicates a comparison between the working directory file and the specified revision, two revisions compares the two versions specified. dump <file> [revision]:: print the indicated revision of the file dumpmanifest [revision]:: print the indicated revision of the manifest (list of version controlled files) history:: print the revision history of the repository init:: initialize a repository in the current directory log <file>:: print the revision history of the specified file merge <repository path>:: pull any changes from the specified repository to the repository in the current directory. Use the value of the HGMERGE environment variable as a program to resolve any merge conflicts between the two repositories. An implicit commit is done at the end of this process if there were any merge conflicts. Note that merge does not yet merge with changed files in the working dir. remove [files ...]:: schedule the indicated files for removal from the repository at the next commit serve [-a addr -n name -p port -t templatedir]:: this will start an http server, by default on port 8000, that will allow browsing the repository using the hgweb interface and will allow merging from the repository. -a sets the interface address, -p the port to listen on, -n the name of the repository and -t sets the location of the template directory. status:: list new, changed, and missing files in the working directory tags:: list the current tags ENVIRONMENT VARIABLES --------------------- HGMERGE:: points to an executable to use for resolving merge conflicts, the program will be executed with four arguments: local file, remote file, ancestor file, and original filename. HGUSER:: this is the string used for the author value of a commit HG_OPTS:: this string is used for default arguments to hg PYTHONPATH:: this is used by Python to find imported modules and needs to be set appropriately based on where mercurial is installed EMAIL:: if HGUSER is not set, this will be used next as the author value for a commit LOGNAME:: if neither HGUSER nor EMAIL is set, LOGNAME will be used (with '@hostname' appended) as the author value for a commit EDITOR:: this is the name of the editor to use when committing FILES ----- .hgignore:: this file contains regular expressions (one per line) that describe file names that should be ignored by hg .hgtags:: this file contains changeset hash values and text tag names (one of each seperated by spaces) that correspond to tagged versions of the repository contents. $HOME/.hgpaths:: this file contains a mapping from a symbolic name to a repository path (which could be a local path or a remote URI), the format is <symbolic name> <repository path> with each mapping on a seperate line BUGS ---- Probably lots, please post them to the mailing list (See Resources below) when you find them. AUTHOR ------ Written by Matt Mackall <mpm@selenic.com> RESOURCES --------- http://selenic.com/mercurial[Main Web Site] http://selenic.com/hg[Source code repository] http://selenic.com/mailman/listinfo/mercurial[Mailing list] COPYING ------- Copyright (C) 2005 Matt Mackall. Free use of this software is granted under the terms of the GNU General Public License (GPL).