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2015-04-14Merge branch 'jn/doc-fast-import-no-16-octopus-limit'Libravatar Junio C Hamano1-4/+0
Documentation update. * jn/doc-fast-import-no-16-octopus-limit: fast-import doc: remove suggested 16-parent limit
2015-03-31fast-import doc: remove suggested 16-parent limitLibravatar Jonathan Nieder1-4/+0
Merges with an absurd number of parents are still a bad idea because they do not render well in tools like gitk, but if they are present in the repository being imported into git then there's no need to avoid reproducing them faithfully. In olden times, before v1.6.0-rc0~194 (2008-06-27), git commit-tree and higher-level tools built on top of it were limited to writing 16 parents for a commit. Nowadays normal git operations are happy to write more parents when asked, so the motivation for this note in the fast-import documentation is gone and we can remove it. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-11-11doc: add some crossrefs between manual pagesLibravatar Max Horn1-0/+4
In particular, git-fast-import and -export link to each other, and gitremote-helpers links to existing remote helpers, and vice versa. Also link to fast-import from the remote helper spec, as this is relevant for remote helpers using the fast-import format. Signed-off-by: Max Horn <max@quendi.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-16Merge branch 'fc/remote-helper-refmap'Libravatar Junio C Hamano1-0/+3
Allow remote-helper/fast-import based transport to rename the refs while transferring the history. * fc/remote-helper-refmap: transport-helper: remove unnecessary strbuf resets transport-helper: add support to delete branches fast-export: add support to delete refs fast-import: add support to delete refs transport-helper: add support to push symbolic refs transport-helper: add support for old:new refspec fast-export: add new --refspec option fast-export: improve argument parsing
2014-05-21Documentation: use "command-line" when used as a compound adjective, and fix ↵Libravatar Jason St. John1-5/+5
other minor grammatical issues Signed-off-by: Jason St. John <jstjohn@purdue.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-21fast-import: add support to delete refsLibravatar Felipe Contreras1-0/+3
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-12Correct word usage of "timezone" in "Documentation" directoryLibravatar Jason St. John1-5/+5
"timezone" is two words, not one (i.e. "time zone" is correct). Correct this in these files: -- date-formats.txt -- git-blame.txt -- git-cvsimport.txt -- git-fast-import.txt -- git-svn.txt -- gitweb.conf.txt -- rev-list-options.txt Signed-off-by: Jason St. John <jstjohn@purdue.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-17Merge branch 'rh/ishes-doc'Libravatar Junio C Hamano1-13/+13
We liberally use "committish" and "commit-ish" (and "treeish" and "tree-ish"); as these are non-words, let's unify these terms to their dashed form. More importantly, clarify the documentation on object peeling using these terms. * rh/ishes-doc: glossary: fix and clarify the definition of 'ref' revisions.txt: fix and clarify <rev>^{<type>} glossary: more precise definition of tree-ish (a.k.a. treeish) use 'commit-ish' instead of 'committish' use 'tree-ish' instead of 'treeish' glossary: define commit-ish (a.k.a. committish) glossary: mention 'treeish' as an alternative to 'tree-ish'
2013-09-04use 'commit-ish' instead of 'committish'Libravatar Richard Hansen1-13/+13
Replace 'committish' in documentation and comments with 'commit-ish' to match gitglossary(7) and to be consistent with 'tree-ish'. The only remaining instances of 'committish' are: * variable, function, and macro names * "(also committish)" in the definition of commit-ish in gitglossary[7] Signed-off-by: Richard Hansen <rhansen@bbn.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-25Documentation/fast-import: clarify summary for `feature` commandLibravatar Matthieu Moy1-2/+2
In most cases, "feature <foo>" does not just require that the feature exists, but also changes the behavior by enabling it. Cases where the feature is only requested like cat-blob, notes or ls are clearly documented below. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-11Merge branch 'jk/maint-fast-import-doc-reorder'Libravatar Junio C Hamano1-46/+52
* jk/maint-fast-import-doc-reorder: git-fast-import(1): reorganise options git-fast-import(1): combine documentation of --[no-]relative-marks
2013-01-09git-fast-import(1): reorganise optionsLibravatar John Keeping1-39/+47
The options in git-fast-import(1) are not currently arranged in a logical order, which has caused the '--done' options to be documented twice (commit 3266de10). Rearrange them into logical groups under subheadings. Suggested-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-09git-fast-import(1): combine documentation of --[no-]relative-marksLibravatar John Keeping1-6/+4
The descriptions of '--relative-marks' and '--no-relative-marks' make more sense when read together instead of as two independent options. Combine them into a single description block. Signed-off-by: John Keeping <john@keeping.me.uk> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-08Merge branch 'jk/maint-fast-import-doc-dedup-done'Libravatar Junio C Hamano1-5/+2
* jk/maint-fast-import-doc-dedup-done: git-fast-import(1): remove duplicate '--done' option
2013-01-08git-fast-import(1): remove duplicate '--done' optionLibravatar John Keeping1-5/+2
The '--done' option to git-fast-import is documented twice in its manual page. Combine the best bits of each description, keeping the location of the instance that was added first. Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-16Documentation: don't link to example mail addressesLibravatar John Keeping1-1/+1
Email addresses in documentation are converted into mailto: hyperlinks in the HTML output and footnotes in man pages. This isn't desirable for cases where the address is used as an example and is not valid. Particularly annoying is the example "jane@laptop.(none)" which appears in git-shortlog(1) as "jane@laptop[1].(none)", with note 1 saying: 1. jane@laptop mailto:jane@laptop Fix this by escaping these email addresses with a leading backslash, to prevent Asciidoc expanding them as inline macros. In the case of mailmap.txt, render the address monospaced so that it matches the block examples surrounding that paragraph. Helped-by: Jeff King <peff@peff.net> Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-29git-fast-import.txt: improve documentation for quoted pathsLibravatar Matthieu Moy1-2/+6
The documentation mentioned only newlines and double quotes as characters needing escaping, but the backslash also needs it. Also, the documentation was not clearly saying that double quotes around the file name were required (double quotes in the examples could be interpreted as part of the sentence, not part of the actual string). Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-08doc/fast-import: clarify how content states are builtLibravatar Eric S. Raymond1-2/+6
Signed-off-by: Eric S. Raymond <esr@thyrsus.com> Signed-off-by: Jeff King <peff@peff.net>
2012-09-18Merge branch 'er/doc-fast-import-done' into maintLibravatar Junio C Hamano1-1/+7
* er/doc-fast-import-done: fast-import: document the --done option
2012-08-22fast-import: document the --done optionLibravatar Eric S. Raymond1-1/+7
Acked-by: Sverre Rabbelier <srabbelier@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-02Merge branch 'jk/doc-asciidoc-inline-literal'Libravatar Junio C Hamano1-3/+3
Our documentation was written for an ancient version of AsciiDoc, making the source not very readable. By Jeff King * jk/doc-asciidoc-inline-literal: docs: stop using asciidoc no-inline-literal
2012-04-26docs: stop using asciidoc no-inline-literalLibravatar Jeff King1-3/+3
In asciidoc 7, backticks like `foo` produced a typographic effect, but did not otherwise affect the syntax. In asciidoc 8, backticks introduce an "inline literal" inside which markup is not interpreted. To keep compatibility with existing documents, asciidoc 8 has a "no-inline-literal" attribute to keep the old behavior. We enabled this so that the documentation could be built on either version. It has been several years now, and asciidoc 7 is no longer in wide use. We can now decide whether or not we want inline literals on their own merits, which are: 1. The source is much easier to read when the literal contains punctuation. You can use `master~1` instead of `master{tilde}1`. 2. They are less error-prone. Because of point (1), we tend to make mistakes and forget the extra layer of quoting. This patch removes the no-inline-literal attribute from the Makefile and converts every use of backticks in the documentation to an inline literal (they must be cleaned up, or the example above would literally show "{tilde}" in the output). Problematic sites were found by grepping for '`.*[{\\]' and examined and fixed manually. The results were then verified by comparing the output of "html2text" on the set of generated html pages. Doing so revealed that in addition to making the source more readable, this patch fixes several formatting bugs: - HTML rendering used the ellipsis character instead of literal "..." in code examples (like "git log A...B") - some code examples used the right-arrow character instead of '->' because they failed to quote - api-config.txt did not quote tilde, and the resulting HTML contained a bogus snippet like: <tt><sub></tt> foo <tt></sub>bar</tt> which caused some parsers to choke and omit whole sections of the page. - git-commit.txt confused ``foo`` (backticks inside a literal) with ``foo'' (matched double-quotes) - mentions of `A U Thor <author@example.com>` used to erroneously auto-generate a mailto footnote for author@example.com - the description of --word-diff=plain incorrectly showed the output as "[-removed-] and {added}", not "{+added+}". - using "prime" notation like: commit `C` and its replacement `C'` confused asciidoc into thinking that everything between the first backtick and the final apostrophe were meant to be inside matched quotes - asciidoc got confused by the escaping of some of our asterisks. In particular, `credential.\*` and `credential.<url>.\*` properly escaped the asterisk in the first case, but literally passed through the backslash in the second case. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-15fast-import doc: cat-blob and ls responses need to be consumed quicklyLibravatar Jonathan Nieder1-3/+39
If fast-import's command pipe and the frontend's cat-blob/ls response pipe are both filled, there can be a deadlock. Luckily all existing frontends consume any pending cat-blob/ls responses completely before writing the next command. Document the requirements so future frontend authors and users can be spared from the problem, too. It is not always easy to catch that kind of bug by testing. To set the scene, add some words of explanation to help the novice understand that "cat-blob" and "ls" output are meant for consumption by the frontend. Reported-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-28Merge branch 'di/fast-import-ident'Libravatar Junio C Hamano1-2/+2
* di/fast-import-ident: fsck: improve committer/author check fsck: add a few committer name tests fast-import: check committer name more strictly fast-import: don't fail on omitted committer name fast-import: add input format tests
2011-08-25Merge branch 'di/fast-import-doc'Libravatar Junio C Hamano1-3/+7
* di/fast-import-doc: doc/fast-import: document feature import-marks-if-exists
2011-08-17doc/fast-import: document feature import-marks-if-existsLibravatar Dmitry Ivankov1-3/+7
fast-import command-line option --import-marks-if-exists was introduced in commit dded4f1 (fast-import: Introduce --import-marks-if-exists, 2011-01-15) --import-marks option can be set via a "feature" command in a fast-import stream and --import-marks-if-exists had support for such specification from the very beginning too due to some shared codebase. Though the documentation for this feature wasn't written in dded4f1. Add the documentation for "feature import-marks-if-exists=<file>". Also add a minimalistic test for it. Signed-off-by: Dmitry Ivankov <divanorama@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11fast-import: check committer name more strictlyLibravatar Dmitry Ivankov1-2/+2
The documentation declares following identity format: (<name> SP)? LT <email> GT where name is any string without LF and LT characters. But fast-import just accepts any string up to first GT instead of checking the whole format, and moreover just writes it as is to the commit object. git-fsck checks for [^<\n]* <[^<>\n]*> format. Note that the space is mandatory. And the space quirk is already handled via extending the string to the left when needed. Modify fast-import input identity format to a slightly stricter one - deny LF, LT and GT in both <name> and <email>. And check for it. This is stricter then git-fsck as fsck accepts "Name> <email>" currently, but soon fsck check will be adjusted likewise. Signed-off-by: Dmitry Ivankov <divanorama@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-01Merge branch 'sr/transport-helper-fix'Libravatar Junio C Hamano1-0/+25
* sr/transport-helper-fix: (21 commits) transport-helper: die early on encountering deleted refs transport-helper: implement marks location as capability transport-helper: Use capname for refspec capability too transport-helper: change import semantics transport-helper: update ref status after push with export transport-helper: use the new done feature where possible transport-helper: check status code of finish_command transport-helper: factor out push_update_refs_status fast-export: support done feature fast-import: introduce 'done' command git-remote-testgit: fix error handling git-remote-testgit: only push for non-local repositories remote-curl: accept empty line as terminator remote-helpers: export GIT_DIR variable to helpers git_remote_helpers: push all refs during a non-local export transport-helper: don't feed bogus refs to export push git-remote-testgit: import non-HEAD refs t5800: document some non-functional parts of remote helpers t5800: use skip_all instead of prereq t5800: factor out some ref tests ...
2011-07-22Merge branch 'mz/doc-synopsis-verse'Libravatar Junio C Hamano1-0/+1
* mz/doc-synopsis-verse: Documentation: use [verse] for SYNOPSIS sections Conflicts: Documentation/git-mergetool--lib.txt
2011-07-22doc/fast-import: clarify notemodify commandLibravatar Dmitry Ivankov1-3/+8
The "notemodify" fast-import command was introduced in commit a8dd2e7 (fast-import: Add support for importing commit notes, 2009-10-09) The commit log has slightly different description than the added documentation. The latter is somewhat confusing. "notemodify" is a subcommand of "commit" command used to add a note for some commit. Does this note annotate the commit produced by the "commit" command or a commit given by it's committish parameter? Which notes tree does it write notes to? The exact meaning could be deduced with old description and some notes machinery knowledge. But let's make it more obvious. This command is used in a context like "commit refs/notes/test" to add or rewrite an annotation for a committish parameter. So the advised way to add notes in a fast-import stream is: 1) import some commits (optional) 2) prepare a "commit" to the notes tree: 2.1) choose notes ref, committer, log message, etc. 2.2) create annotations with "notemodify", where each can refer to a commit being annotated via a branch name, import mark reference, sha1 and other expressions specified in the Documentation. Signed-off-by: Dmitry Ivankov <divanorama@gmail.com> Acked-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19fast-import: introduce 'done' commandLibravatar Sverre Rabbelier1-0/+25
Add a 'done' command that causes fast-import to stop reading from the stream and exit. If the new --done command line flag was passed on the command line (or a "feature done" declaration included at the start of the stream), make the 'done' command mandatory. So "git fast-import --done"'s input format will be prefix-free, making errors easier to detect when they show up as early termination at some convenient time of the upstream of a pipe writing to fast-import. Another possible application of the 'done' command would to be allow a fast-import stream that is only a small part of a larger encapsulating stream to be easily parsed, leaving the file offset after the "done\n" so the other application can pick up from there. This patch does not teach fast-import to do that --- fast-import still uses buffered input (stdio). Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-06Documentation: use [verse] for SYNOPSIS sectionsLibravatar Martin von Zweigbergk1-0/+1
The SYNOPSIS sections of most commands that span several lines already use [verse] to retain line breaks. Most commands that don't span several lines seem not to use [verse]. In the HTML output, [verse] does not only preserve line breaks, but also makes the section indented, which causes a slight inconsistency between commands that use [verse] and those that don't. Use [verse] in all SYNOPSIS sections for consistency. Also remove the blank lines from git-fetch.txt and git-rebase.txt to align with the other man pages. In the case of git-rebase.txt, which already uses [verse], the blank line makes the [verse] not apply to the last line, so removing the blank line also makes the formatting within the document more consistent. While at it, add single quotes to 'git cvsimport' for consistency with other commands. Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-05git-fast-import.txt: --relative-marks takes no parameterLibravatar Michael J Gruber1-2/+2
Remove spurious "=" after --relative-marks. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-11doc: drop author/documentation sections from most pagesLibravatar Jeff King1-8/+0
The point of these sections is generally to: 1. Give credit where it is due. 2. Give the reader an idea of where to ask questions or file bug reports. But they don't do a good job of either case. For (1), they are out of date and incomplete. A much more accurate answer can be gotten through shortlog or blame. For (2), the correct contact point is generally git@vger, and even if you wanted to cc the contact point, the out-of-date and incomplete fields mean you're likely sending to somebody useless. So let's drop the fields entirely from all manpages except git(1) itself. We already point people to the mailing list for bug reports there, and we can update the Authors section to give credit to the major contributors and point to shortlog and blame for more information. Each page has a "This is part of git" footer, so people can follow that to the main git manpage.
2011-02-26fast-import: add 'ls' commandLibravatar David Barr1-3/+60
Lazy fast-import frontend authors that want to rely on the backend to keep track of the content of the imported trees _almost_ have what they need in the 'cat-blob' command (v1.7.4-rc0~30^2~3, 2010-11-28). But it is not quite enough, since (1) cat-blob can be used to retrieve the content of files, but not their mode, and (2) using cat-blob requires the frontend to keep track of a name (mark number or object id) for each blob to be retrieved Introduce an 'ls' command to complement cat-blob and take care of the remaining needs. The 'ls' command finds what is at a given path within a given tree-ish (tag, commit, or tree): 'ls' SP <dataref> SP <path> LF or in fast-import's active commit: 'ls' SP <path> LF The response is a single line sent through the cat-blob channel, imitating ls-tree output. So for example: FE> ls :1 Documentation gfi> 040000 tree 9e6c2b599341d28a2a375f8207507e0a2a627fe9 Documentation FE> ls 9e6c2b599341d28a2a375f8207507e0a2a627fe9 git-fast-import.txt gfi> 100644 blob 4f92954396e3f0f97e75b6838a5635b583708870 git-fast-import.txt FE> ls :1 RelNotes gfi> 120000 blob b942e499449d97aeb50c73ca2bdc1c6e6d528743 RelNotes FE> cat-blob b942e499449d97aeb50c73ca2bdc1c6e6d528743 gfi> b942e499449d97aeb50c73ca2bdc1c6e6d528743 blob 32 gfi> Documentation/RelNotes/1.7.4.txt The most interesting parts of the reply are the first word, which is a 6-digit octal mode (regular file, executable, symlink, directory, or submodule), and the part from the second space to the tab, which is a <dataref> that can be used in later cat-blob, ls, and filemodify (M) commands to refer to the content (blob, tree, or commit) at that path. If there is nothing there, the response is "missing some/path". The intent is for this command to be used to read files from the active commit, so a frontend can apply patches to them, and to copy files and directories from previous revisions. For example, proposed updates to svn-fe use this command in place of its internal representation of the repository directory structure. This simplifies the frontend a great deal and means support for resuming an import in a separate fast-import run (i.e., incremental import) is basically free. Signed-off-by: David Barr <david.barr@cordelta.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Improved-by: Junio C Hamano <gitster@pobox.com> Improved-by: Sverre Rabbelier <srabbelier@gmail.com>
2011-02-09Merge branch 'rr/fi-import-marks-if-exists'Libravatar Junio C Hamano1-0/+4
* rr/fi-import-marks-if-exists: fast-import: Introduce --import-marks-if-exists
2011-02-09Merge branch 'maint-1.7.0' into maintLibravatar Junio C Hamano1-0/+7
* maint-1.7.0: fast-import: introduce "feature notes" command fast-import: clarify documentation of "feature" command Conflicts: Documentation/git-fast-import.txt
2011-02-09fast-import: introduce "feature notes" commandLibravatar Jonathan Nieder1-0/+6
Here is a 'feature' command for streams to use to require support for the notemodify (N) command. When the 'feature' facility was introduced (v1.7.0-rc0~95^2~4, 2009-12-04), the notes import feature was old news (v1.6.6-rc0~21^2~8, 2009-10-09) and it was not obvious it deserved to be a named feature. But now that is clear, since all major non-git fast-import backends lack support for it. Details: on git version with this patch applied, any "feature notes" command in the features/options section at the beginning of a stream will be treated as a no-op. On fast-import implementations without the feature (and older git versions), the command instead errors out with a message like This version of fast-import does not support feature notes. So by declaring use of notes at the beginning of a stream, frontends can avoid wasting time and other resources when the backend does not support notes. (This would be especially important for backends that do not support rewinding history after a botched import.) Improved-by: Thomas Rast <trast@student.ethz.ch> Improved-by: Sverre Rabbelier <srabbelier@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-09fast-import: clarify documentation of "feature" commandLibravatar Jonathan Nieder1-20/+17
The "feature" command allows streams to specify options for the import that must not be ignored. Logically, they are part of the stream, even though technically most supported features are synonyms to command-line options. Make this more obvious by being more explicit about how the analogy between most "feature" commands and command-line options works. Treat the feature (import-marks) that does not fit this analogy separately. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Sverre Rabbelier <srabbelier@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-01-18Documentation/fast-import: put explanation of M 040000 <dataref> "" in contextLibravatar Jonathan Nieder1-3/+2
Omit needless words ("Additionally ... <path> may also" is redundant). While at it, place the explanation of this special case after the general rules for paths to provide the reader with some context. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-01-18Documentation/fast-import: capitalize beginning of sentenceLibravatar Jonathan Nieder1-1/+1
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-01-18fast-import: Introduce --import-marks-if-existsLibravatar Ramkumar Ramachandra1-0/+4
When a frontend uses a marks file to ensure its state persists between runs, it may represent "clean slate" when bootstrapping with "no marks yet". In such a case, feeding the last state with --import-marks and saving the state after the current run with --export-marks would be a natural thing to do. The --import-marks option however errors out when the specified marks file doesn't exist; this makes bootstrapping a bit difficult. The location of the marks file becomes backend-dependent when --relative-marks is in effect, and the frontend cannot check for the existence of the file in such a case. The --import-marks-if-exists option does the same thing as --import-marks but does not flag an error if the named file does not exist yet to help these frontends. Helped-by: Junio C Hamano <gitster@pobox.com> Helped-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-16Merge branch 'jn/fast-import-blob-access'Libravatar Junio C Hamano1-20/+62
* jn/fast-import-blob-access: t9300: avoid short reads from dd t9300: remove unnecessary use of /dev/stdin fast-import: Allow cat-blob requests at arbitrary points in stream fast-import: let importers retrieve blobs fast-import: clarify documentation of "feature" command fast-import: stricter parsing of integer options Conflicts: fast-import.c
2010-12-01fast-import: Allow cat-blob requests at arbitrary points in streamLibravatar Jonathan Nieder1-0/+4
The new rule: a "cat-blob" can be inserted wherever a comment is allowed, which means at the start of any line except in the middle of a "data" command. This saves frontends from having to loop over everything they want to commit in the next commit and cat-ing the necessary objects in advance. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: David Barr <david.barr@cordelta.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-01fast-import: let importers retrieve blobsLibravatar David Barr1-0/+41
New objects written by fast-import are not available immediately. Until a checkpoint has been started and finishes writing the pack index, any new blobs will not be accessible using standard git tools. So introduce a new way to access them: a "cat-blob" command in the command stream requests for fast-import to print a blob to stdout or a file descriptor specified by the argument to --cat-blob-fd. The value for cat-blob-fd cannot be specified in the stream because that would be a layering violation: the decision of where to direct a stream has to be made when fast-import is started anyway, so we might as well make the stream format is independent of that detail. Output uses the same format as "git cat-file --batch". Thanks to Sverre Rabbelier and Sam Vilain for guidance in designing the protocol. Based-on-patch-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: David Barr <david.barr@cordelta.com> Acked-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-01fast-import: clarify documentation of "feature" commandLibravatar Jonathan Nieder1-20/+17
The "feature" command allows streams to specify options for the import that must not be ignored. Logically, they are part of the stream, even though technically most supported features are synonyms to command-line options. Make this more obvious by being more explicit about how the analogy between most "feature" commands and command-line options works. Treat the feature (import-marks) that does not fit this analogy separately. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Sverre Rabbelier <srabbelier@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-24fast-import: treat SIGUSR1 as a request to access objects earlyLibravatar Jonathan Nieder1-0/+7
It can be tedious to wait for a multi-million-revision import. Unfortunately it is hard to spy on the import because fast-import works by continuously streaming out objects, without updating the pack index or refs until a checkpoint command or the end of the stream. So allow the impatient operator to request checkpoints by sending a signal, like so: killall -USR1 git-fast-import When receiving such a signal, fast-import would schedule a checkpoint to take place after the current top-level command (usually a "commit" or "blob" request) finishes. Caveats: just like ordinary checkpoint commands, such requests slow down the import. Switching to a new pack at a suboptimal moment is also likely to result in a less dense initial collection of packs. That's the price. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-13Merge branch 'maint'Libravatar Junio C Hamano1-1/+1
* maint: Better advice on using topic branches for kernel development Documentation: update implicit "--no-index" behavior in "git diff" Documentation: expand 'git diff' SEE ALSO section Documentation: diff can compare blobs Documentation: gitrevisions is in section 7 shell portability: no "export VAR=VAL" CodingGuidelines: reword parameter expansion section Documentation: update-index: -z applies also to --index-info Documentation: No argument of ALLOC_GROW should have side-effects
2010-10-13Documentation: gitrevisions is in section 7Libravatar Jonathan Nieder1-1/+1
Fix references to gitrevisions(1) in the manual pages and HTML documentation. In practice, this will not matter much unless someone tries to use a hard copy of the git reference manual. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-13fast-import: Allow filemodify to set the rootLibravatar David Barr1-0/+3
v1.7.3-rc0~75^2 (Teach fast-import to import subtrees named by tree id, 2010-06-30) has a shortcoming - it doesn't allow the root to be set. Extend this behaviour by allowing the root to be referenced as the empty path, "". For a command (like filter-branch --subdirectory-filter) that wants to commit a lot of trees that already exist in the object db, writing undeltified objects as loose files only to repack them later can involve a significant amount of overhead. (23% slow-down observed on Linux 2.6.35, worse on Mac OS X 10.6) Fortunately we have fast-import (which is one of the only git commands that will write to a pack directly) but there is not an advertised way to tell fast-import to commit a given tree without unpacking it. This patch changes that, by allowing M 040000 <tree id> "" as a filemodify line in a commit to reset to a particular tree without any need to parse it. For example, M 040000 4b825dc642cb6eb9a060e54bf8d69288fbee4904 "" is a synonym for the deleteall command and the fast-import equivalent of git read-tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904 Signed-off-by: David Barr <david.barr@cordelta.com> Commit-message-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Sverre Rabbelier <srabbelier@gmail.com> Tested-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>