Help: import

hg import [OPTION]... PATCH...

aliases: patch

import an ordered set of patches

Import a list of patches and commit them individually (unless --no-commit is specified).

To read a patch from standard input (stdin), use "-" as the patch name. If a URL is specified, the patch will be downloaded from there.

Import first applies changes to the working directory (unless --bypass is specified), import will abort if there are outstanding changes.

Use --bypass to apply and commit patches directly to the repository, without affecting the working directory. Without --exact, patches will be applied on top of the working directory parent revision.

You can import a patch straight from a mail message. Even patches as attachments work (to use the body part, it must have type text/plain or text/x-patch). From and Subject headers of email message are used as default committer and commit message. All text/plain body parts before first diff are added to the commit message.

If the imported patch was generated by 'hg export', user and description from patch override values from message headers and body. Values given on command line with -m/--message and -u/--user override these.

If --exact is specified, import will set the working directory to the parent of each patch before applying it, and will abort if the resulting changeset has a different ID than the one recorded in the patch. This will guard against various ways that portable patch formats and mail systems might fail to transfer Mercurial data or metadata. See 'hg bundle' for lossless transmission.

Use --partial to ensure a changeset will be created from the patch even if some hunks fail to apply. Hunks that fail to apply will be written to a <target-file>.rej file. Conflicts can then be resolved by hand before 'hg commit --amend' is run to update the created changeset. This flag exists to let people import patches that partially apply without losing the associated metadata (author, date, description, ...).


When no hunks apply cleanly, 'hg import --partial' will create an empty changeset, importing only the patch metadata.

With -s/--similarity, hg will attempt to discover renames and copies in the patch in the same way as 'hg addremove'.

It is possible to use external patch programs to perform the patch by setting the "ui.patch" configuration option. For the default internal tool, the fuzz can also be configured via "patch.fuzz". See 'hg help config' for more information about configuration files and how to use these options.

See 'hg help dates' for a list of formats valid for -d/--date.


  • import a traditional patch from a website and detect renames:
    hg import -s 80
  • import a changeset from an hgweb server:
    hg import
  • import all the patches in an Unix-style mbox:
    hg import incoming-patches.mbox
  • import patches from stdin:
    hg import -
  • attempt to exactly restore an exported changeset (not always possible):
    hg import --exact proposed-fix.patch
  • use an external tool to apply a patch which is too fuzzy for the default internal tool.

    hg import --config ui.patch="patch --merge" fuzzy.patch

  • change the default fuzzing from 2 to a less strict 7

    hg import --config ui.fuzz=7 fuzz.patch

Returns 0 on success, 1 on partial success (see --partial).


-p --strip NUM directory strip option for patch. This has the same meaning as the corresponding patch option (default: 1)
-b --base PATH base path (DEPRECATED)
--secret use the secret phase for committing
-e --edit invoke editor on commit messages
-f --force skip check for outstanding uncommitted changes (DEPRECATED)
--no-commit don't commit, just update the working directory
--bypass apply patch without touching the working directory
--partial commit even if some hunks fail
--exact abort if patch would apply lossily
--prefix DIR apply patch to subdirectory
--import-branch use any branch information in patch (implied by --exact)
-m --message TEXT use text as commit message
-l --logfile FILE read commit message from file
-d --date DATE record the specified date as commit date
-u --user USER record the specified user as committer
-s --similarity SIMILARITY guess renamed files by similarity (0<=s<=100)

global options ([+] can be repeated):

-R --repository REPO repository root directory or name of overlay bundle file
--cwd DIR change working directory
-y --noninteractive do not prompt, automatically pick the first choice for all prompts
-q --quiet suppress output
-v --verbose enable additional output
--color TYPE when to colorize (boolean, always, auto, never, or debug)
--config CONFIG [+] set/override config option (use '')
--debug enable debugging output
--debugger start debugger
--encoding ENCODE set the charset encoding (default: UTF-8)
--encodingmode MODE set the charset encoding mode (default: strict)
--traceback always print a traceback on exception
--time time how long the command takes
--profile print command execution profile
--version output version information and exit
-h --help display help and exit
--hidden consider hidden changesets
--pager TYPE when to paginate (boolean, always, auto, or never) (default: auto)