kernel/git - git - PowerEL Git System

Commit Graph

Author	SHA1	Message	Date
Junio C Hamano	41ac414ea2	Sane use of test_expect_failure Originally, test_expect_failure was designed to be the opposite of test_expect_success, but this was a bad decision. Most tests run a series of commands that leads to the single command that needs to be tested, like this: test_expect_{success,failure} 'test title' ' setup1 && setup2 && setup3 && what is to be tested ' And expecting a failure exit from the whole sequence misses the point of writing tests. Your setup$N that are supposed to succeed may have failed without even reaching what you are trying to test. The only valid use of test_expect_failure is to check a trivial single command that is expected to fail, which is a minority in tests of Porcelain-ish commands. This large-ish patch rewrites all uses of test_expect_failure to use test_expect_success and rewrites the condition of what is tested, like this: test_expect_success 'test title' ' setup1 && setup2 && setup3 && ! this command should fail ' test_expect_failure is redefined to serve as a reminder that that test should succeed but due to a known breakage in git it currently does not pass. So if git-foo command should create a file 'bar' but you discovered a bug that it doesn't, you can write a test like this: test_expect_failure 'git-foo should create bar' ' rm -f bar && git foo && test -f bar ' This construct acts similar to test_expect_success, but instead of reporting "ok/FAIL" like test_expect_success does, the outcome is reported as "FIXED/still broken". Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Shawn O. Pearce	ac053c0202	Allow frontends to bidirectionally communicate with fast-import The existing checkpoint command is very useful to force fast-import to dump the branches out to disk so that standard Git tools can access them and the objects they refer to. However there was not a way to know when fast-import had finished executing the checkpoint and it was safe to read those refs. The progress command can be used to make fast-import output any message of the frontend's choosing to standard out. The frontend can scan for these messages using select() or poll() to monitor a pipe connected to the standard output of fast-import. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	17 years ago
Shawn O. Pearce	1fdb649c6a	Make trailing LF optional for all fast-import commands For the same reasons as the prior change we want to allow frontends to omit the trailing LF that usually delimits commands. In some cases these just make the input stream more verbose looking than it needs to be, and its just simpler for the frontend developer to get started if our parser is slightly more lenient about where an LF is required and where it isn't. To make this optional LF feature work we now have to buffer up to one line of input in command_buf. This buffering can happen if we look at the current input command but don't recognize it at this point in the code. In such a case we need to "unget" the entire line, but we cannot depend upon the stdio library to let us do ungetc() for that many characters at once. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	17 years ago
Shawn O. Pearce	2c570cde98	Make trailing LF following fast-import `data` commands optional A few fast-import frontend developers have found it odd that we require the LF following a `data` command, especially in the exact byte count format. Technically we don't need this LF to parse the stream properly, but having it here does make the stream more readable to humans. We can easily make the LF optional by peeking at the next byte available from the stream and pushing it back into the buffer if its not LF. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	17 years ago
Shawn O. Pearce	401d53fa35	Teach fast-import to ignore lines starting with '#' Several frontend developers have asked that some form of stream comments be permitted within a fast-import data stream. This way they can include information from their own frontend program about where specific data was taken from in the source system, or about a decision that their frontend may have made while creating the fast-import data stream. This change introduces comments in the Bourne-shell/Tcl/Perl style. Lines starting with '#' are ignored, up to and including the LF. Unlike the above mentioned three languages however we do not look for and ignore leading whitespace. This just simplifies the definition of the comment format and the code that parses them. To make comments work we had to stop using read_next_command() within cmd_data() and directly invoke read_line() during the inline variant of the function. This is necessary to retain any lines of the input data that might otherwise look like a comment to fast-import. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	17 years ago
Shawn O. Pearce	ea08a6fd19	Actually allow TAG_FIXUP branches in fast-import Michael Haggerty <mhagger@alum.mit.edu> noticed while debugging a Git backend for cvs2svn that fast-import was barfing when he tried to use "TAG_FIXUP" as a branch name for temporary work needed to cleanup the tree prior to creating an annotated tag object. The reason we were rejecting the branch name was check_ref_format() returns -2 when there are less than 2 '/' characters in the input name. TAG_FIXUP has 0 '/' characters, but is technically just as valid of a ref as HEAD and MERGE_HEAD, so we really should permit it (and any other similar looking name) during import. New test cases have been added to make sure we still detect very wrong branch names (e.g. containing [ or starting with .) and yet still permit reasonable names (e.g. TAG_FIXUP). Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	17 years ago
Jeff King	82cb8afa9b	git-diff: turn on recursion by default The tree recursion behavior of git-diff may appear inconsistent to the user because it depends on the format of the patch as well as whether one is diffing between trees or against the index. Since git-diff is a porcelain wrapper for low-level diff commands, it makes sense for its behavior to be consistent no matter what is being diffed. This patch turns on recursion in all cases. Signed-off-by: Junio C Hamano <gitster@pobox.com>	18 years ago
Shawn O. Pearce	b6f3481bb4	Teach fast-import to recursively copy files/directories Some source material (e.g. Subversion dump files) perform directory renames by telling us the directory was copied, then deleted in the same revision. This makes it difficult for a frontend to convert such data formats to a fast-import stream, as all the frontend has on hand is "Copy a/ to b/; Delete a/" with no details about what files are in a/, unless the frontend also kept track of all files. The new 'C' subcommand within a commit allows the frontend to make a recursive copy of one path to another path within the branch, without needing to keep track of the individual file paths. The metadata copy is performed in memory efficiently, but is implemented as a copy-immediately operation, rather than copy-on-write. With this new 'C' subcommand frontends could obviously implement an 'R' (rename) on their own as a combination of 'C' and 'D' (delete), but since we have already offered up 'R' in the past and it is a trivial thing to keep implemented I'm not going to deprecate it. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago
Shawn O. Pearce	f39a946a1f	Support wholesale directory renames in fast-import Some source material (e.g. Subversion dump files) perform directory renames without telling us exactly which files in that subdirectory were moved. This makes it hard for a frontend to convert such data formats to a fast-import stream, as all the frontend has on hand is "Rename a/ to b/" with no details about what files are in a/, unless the frontend also kept track of all files. The new 'R' subcommand within a commit allows the frontend to rename either a file or an entire subdirectory, without needing to know the object's SHA-1 or the specific files contained within it. The rename is performed as efficiently as possible internally, making it cheaper than a 'D'/'M' pair for a file rename. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago
Junio C Hamano	5be60078c9	Rewrite "git-frotz" to "git frotz" This uses the remove-dashes target to replace "git-frotz" to "git frotz". Signed-off-by: Junio C Hamano <gitster@pobox.com>	18 years ago
Shawn O. Pearce	aac65ed1bc	Fix possible coredump with fast-import --import-marks When `e8438420bb` allowed us to reload the marks table on subsequent runs of fast-import we really broke things, as we set pack_id to MAX_PACK_ID for any objects we imported into the marks table. Creating a branch from that mark should fail as we attempt to read the object through a non-existant packed_git pointer. Instead we have to use the normal Git object system to locate the older commit, as we ourselves do not have a reference to the packed_git it resides in. This bug only occurred because t9300 was not complete enough. When we added the --import-marks feature we didn't actually test its implementation enough to verify the function worked as intended. I have corrected that, and included the changes as part of this fix. Prior versions of fast-import fail the new test(s); this commit allows them to pass. Credit for this bug find goes to Simon Hausmann <simon@lst.de> as he recently identified a similiar bug in the tree lazy-loading path. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago
Jeff King	e741130386	New fast-import test case for valid tree sorting The Git tree sorting convention is more complex than just the name, it needs to include the mode too to make sure trees sort as though their name ends with "/". This is a simple test case that verifies fast-import keeps the tree ordering correct after editing the same tree twice in a single input stream. A recent proposed patch series (that has not yet been applied) will cause this test to fail, due to a bug in the way the series handles sorting within the trees. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago
Shawn O. Pearce	e8438420bb	Allow fast-import frontends to reload the marks table I'm giving fast-import a lesson on how to reload the marks table using the same format it outputs with --export-marks. This way a frontend can reload the marks table from a prior import, making incremental imports less painful. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago
Johannes Schindelin	5bd74506cd	Get rid of the dependency to GNU diff in the tests Now that "git diff" handles stdin and relative paths outside the working tree correctly, we can convert all instances of "diff -u" to "git diff". This commit is really the result of $ perl -pi.bak -e 's/diff -u/git diff/' $(git grep -l "diff -u" t/) Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net> (cherry picked from commit c699a40d68215c7e44a5b26117a35c8a56fbd387)	18 years ago
Shawn O. Pearce	ea5e370aa9	fast-import: Support reusing 'from' and brown paper bag fix reset. It was suggested on the mailing list that being able to use `from` in any commit to reset the current branch is useful in some types of importers, such as a darcs importer. We originally did not permit resetting an existing branch with a new `from` command during a `commit` command, but this restriction was only to help debug the hacked up cvs2svn that Jon Smirl was developing in parallel with git-fast-import. It is probably more of a problem to disallow it than to allow it. So now we permit a `from` during any `commit`. While making the changes required to permit multiple `from` commands on the same branch, I discovered we no longer needed the last_commit field to be set to 0 during a reset, so that was removed. (Reset was originally setting the field to 0 to signal cmd_from() that it was OK to execute on the branch.) While poking around in this section of fast-import I also realized the `reset` command was not working as intended if the corresponding `from` command was omitted (as allowed by the BNF grammar and the code). If `from` was omitted we cleared out the tree but we left the tree SHA-1 and parent commit SHA-1 intact. This is not what the user intended in this case. Instead they would be trying to reset the branch to have no parent and to have no tree, making the branch look new-born during the next commit. We now clear these SHA-1 values during `reset`, ensuring the branch looks new-born if `from` does not get supplied. New test cases for these were also added. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago
Shawn O. Pearce	bdf1c06dc1	fast-import: Hide the pack boundary commits by default. Most users don't need the pack boundary information that fast-import was printing to standard output, especially if they were calling it with --quiet. Those users who do want this information probably want it captured so they can go back and use it to repack the imported repository. So dumping the boundary commits to a log file makes more sense then printing them to standard output. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago
Shawn O. Pearce	825769a8fe	Teach fast-import how to clear the internal branch content. Some frontends may not be able to (easily) keep track of which files are included in the branch, and which aren't. Performing this tracking can be tedious and error prone for the frontend to do, especially if its foreign data source cannot supply the changed path list on a per-commit basis. fast-import now allows a frontend to request that a branch's tree be wiped clean (reset to the empty tree) at the start of a commit, allowing the frontend to feed in all paths which belong on the branch. This is ideal for a tar-file importer frontend, for example, as the frontend just needs to reformat the tar data stream into a gfi data stream, which may be something a few Perl regexps can take care of. :) Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago
Shawn O. Pearce	7073e69e38	Don't do non-fastforward updates in fast-import. If fast-import is being used to update an existing branch of a repository, the user may not want to lose commits if another process updates the same ref at the same time. For example, the user might be using fast-import to make just one or two commits against a live branch. We now perform a fast-forward check during the ref updating process. If updating a branch would cause commits in that branch to be lost, we skip over it and display the new SHA1 to standard error. This new default behavior can be overridden with `--force`, like git-push and git-fetch. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago
Shawn O. Pearce	63e0c8b364	Support RFC 2822 date parsing in fast-import. Since some frontends may be working with source material where the dates are only readily available as RFC 2822 strings, it is more friendly if fast-import exposes Git's parse_date() function to handle the conversion. This way the frontend doesn't need to perform the parsing itself. The new --date-format option to fast-import can be used by a frontend to select which format it will supply date strings in. The default is the standard `raw` Git format, which fast-import has always supported. Format rfc2822 can be used to activate the parse_date() function instead. Because fast-import could also be useful for creating new, current commits, the format `now` is also supported to generate the current system timestamp. The implementation of `now` is a trivial call to datestamp(), but is actually a whole whopping 3 lines so that fast-import can verify the frontend really meant `now`. As part of this change I have added validation of the `raw` date format. Prior to this change fast-import would accept anything in a `committer` command, even if it was seriously malformed. Now fast-import requires the '> ' near the end of the string and verifies the timestamp is formatted properly. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago
Shawn O. Pearce	b715cfbba4	Accept 'inline' file data in fast-import commit structure. Its very annoying to need to specify the file content ahead of a commit and use marks to connect the individual blobs to the commit's file modification entry, especially if the frontend can't/won't generate the blob SHA1s itself. Instead it would much easier to use if we can accept the blob data at the same time as we receive each file_change line. Now fast-import accepts 'inline' instead of a mark idnum or blob SHA1 within the 'M' type file_change command. If an inline is detected the very next line must be a 'data n' command, supplying the file data. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago
Shawn O. Pearce	8232dc427f	Reduce value duplication in t9300-fast-import. It is error prone to list the value of each file twice, instead we should list the value only once early in the script and reuse the shell variable when we need to access it. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago
Shawn O. Pearce	50aee99512	Create test case for fast-import. Now that its easier to craft test cases (thanks to 'data <<') we should start to verify fast-import works as expected. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	18 years ago

23 Commits (3473f3035d04957ca24d3ccc232f4263b26d6bb8)