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2011-02-26vcs-svn: allow input from file descriptorLibravatar Jonathan Nieder5-7/+31
Based-on-patch-by: David Barr <david.barr@cordelta.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2011-02-26vcs-svn: allow character-oriented inputLibravatar Jonathan Nieder2-0/+6
buffer_read_char can be used in place of buffer_read_string(1) to avoid consuming valuable static buffer space. The delta applier will use this to read variable-length integers one byte at a time. Underneath, it is fgetc, wrapped so the line_buffer library can maintain its role as gatekeeper of input. Later it might be worth checking if fgetc_unlocked is faster --- most line_buffer functions are not thread-safe anyway. Helpd-by: David Barr <david.barr@cordelta.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2011-02-26vcs-svn: add binary-safe read functionLibravatar Jonathan Nieder4-0/+35
buffer_read_string works well for non line-oriented input except for one problem: it does not tell the caller how many bytes were actually written. This means that unless one is very careful about checking for errors (and eof) the calling program cannot tell the difference between the string "foo" followed by an early end of file and the string "foo\0bar\0baz". So introduce a variant that reports the length, too, a thinner wrapper around strbuf_fread. Its result is written to a strbuf so the caller does not need to keep track of the number of bytes read. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2011-02-26t0081 (line-buffer): add buffering testsLibravatar Jonathan Nieder2-4/+128
POSIX makes the behavior of read(2) from a pipe fairly clear: a read from an empty pipe will block until there is data available and any other read will not block, prefering to return a partial result. Likewise, fread(3) and fgets(3) are clearly specified to act as though implemented by calling fgetc(3) in a simple loop. But the buffering behavior of fgetc is less clear. Luckily, no sane platform is going to implement fgetc by calling the equivalent of read(2) more than once. fgetc has to be able to return without filling its buffer to preserve errno when errors are encountered anyway. So let's assume the simpler behavior (trust) but add some tests to catch insane platforms that violate that when they come (verify). First check that fread can handle a 0-length read from an empty fifo. Because open(O_RDONLY) blocks until the writing end is open, open the writing end of the fifo in advance in a subshell. Next try short inputs from a pipe that is not filled all the way. Lastly (two tests) try very large inputs from a pipe that will not fit in the relevant buffers. The first of these tests reads a little more than 8192 bytes, which is BUFSIZ (the size of stdio's buffers) on this Linux machine. The second reads a little over 64 KiB (the pipe capacity on Linux) and is not run unless requested by setting the GIT_REMOTE_SVN_TEST_BIG_FILES environment variable. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2011-02-26vcs-svn: tweak test-line-buffer to not assume line-oriented inputLibravatar Jonathan Nieder2-17/+20
Do not expect an implicit newline after each input record. Use a separate command to exercise buffer_skip_bytes. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2011-02-26tests: give vcs-svn/line_buffer its own test scriptLibravatar Jonathan Nieder2-54/+67
Split the line_buffer test into small pieces and move it to its own file as preparation for adding more tests. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2011-02-26vcs-svn: make test-line-buffer input format more flexibleLibravatar Jonathan Nieder2-29/+45
Imitate the input format of test-obj-pool to support arbitrary sequences of commands rather than alternating read/copy. This should make it easier to add tests that exercise other line_buffer functions. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2011-02-26vcs-svn: teach line_buffer to handle multiple input filesLibravatar Jonathan Nieder7-46/+50
Collect the line_buffer state in a newly public line_buffer struct. Callers can use multiple line_buffers to manage input from multiple files at a time. svn-fe's delta applier will use this to stream a delta from svnrdump and the preimage it applies to from fast-import at the same time. The tests don't take advantage of the new features, but I think that's okay. It is easier to find lingering examples of nonreentrant code by searching for "static" in line_buffer.c. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2011-02-26vcs-svn: collect line_buffer data in a structLibravatar Jonathan Nieder2-23/+33
Prepare for the line_buffer lib to support input from multiple files, by collecting global state in a struct that can be easily passed around. No API change yet. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2011-02-26vcs-svn: replace buffer_read_string memory pool with a strbufLibravatar Jonathan Nieder1-10/+6
obj_pool is inherently global and does not use the standard growing factor alloc_nr, which makes it feel out of place in the git codebase. Plus it is overkill for this application: all that is needed is a buffer that can grow between requests to accomodate larger strings. Use a strbuf instead. As a side effect, this improves the error handling: allocation failures will result in a clean exit instead of segfaults. It would be nice to add a test case (using ulimit or failmalloc) but that can wait for another day. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2011-02-26vcs-svn: eliminate global byte_bufferLibravatar Jonathan Nieder1-1/+2
The data stored in byte_buffer[] is always either discarded or written to stdout immediately. No need for it to persist between function calls. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2011-02-26fast-import: add 'ls' commandLibravatar David Barr3-14/+303
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>
2011-02-22update-index --refresh --porcelain: add missing constLibravatar Jonathan Nieder2-3/+3
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-22checkout: add missing const to describe_detached_headLibravatar Jonathan Nieder1-1/+1
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-21Merge branch 'maint'Libravatar Junio C Hamano2-14/+14
* maint: Documentation: clarify -u<mode> option defaults
2011-02-21Documentation: clarify -u<mode> option defaultsLibravatar Clemens Buchacher2-14/+14
Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-21Merge branch 'maint'Libravatar Junio C Hamano5-92/+15
* maint: t/t7500-commit.sh: use test_cmp instead of test t/gitweb-lib.sh: Ensure that errors are shown for --debug --immediate gitweb/gitweb.perl: don't call S_ISREG() with undef gitweb/gitweb.perl: remove use of qw(...) as parentheses
2011-02-21t/t7500-commit.sh: use test_cmp instead of testLibravatar Ævar Arnfjörð Bjarmason1-1/+6
Change commit_msg_is() in t/t7500-commit.sh to use test_cmp instead of the shell's test function. Now if a test fails we'll get test_cmp output showing us what failed. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-21t/gitweb-lib.sh: Ensure that errors are shown for --debug --immediateLibravatar Ævar Arnfjörð Bjarmason3-88/+6
Because '--immediate' stops test suite after first error, therefore in this mode test_debug 'cat gitweb.log' was never ran, thus in effect negating effect of '--debug' option. This made finidng the cause of errors in gitweb test sute difficult. Modify the gitweb_run test subroutine to run test_debug itself in the case of errors (and also remove "test_debug 'cat gitweb.log'" from gitweb tests). This makes it possible to run *gitweb tests* with --immediate ---debug combination of options; also it makes gitweb tests to not output spurious debug data that is not considered error. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Jakub Narębski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-21gitweb/gitweb.perl: don't call S_ISREG() with undefLibravatar Ævar Arnfjörð Bjarmason1-1/+1
Change S_ISREG($to_mode_oct) to S_ISREG($from_mode_oct) in the branch that handles from modes, not to modes. This logic appears to have been caused by copy/paste programming by Jakub Narebski in e8e41a93. It would be better to rewrite this code not to be duplicated, but I haven't done so. This issue caused a failing test on perl 5.13.9, which has a warning that turned this up: gitweb.perl: Use of uninitialized value in subroutine entry at /home/avar/g/git/t/../gitweb/gitweb.perl line 4415. Which caused the Git test suite to fail on this test: ./t9500-gitweb-standalone-no-errors.sh (Wstat: 256 Tests: 90 Failed: 84) Failed tests: 1-8, 10-36, 38-45, 47-48, 50-88 Non-zero exit status: 1 Reported-by: perl 5.13.9 Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Acked-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-21gitweb/gitweb.perl: remove use of qw(...) as parenthesesLibravatar Ævar Arnfjörð Bjarmason1-2/+2
Using the qw(...) construct as implicit parentheses was deprecated in perl 5.13.5. Change the relevant code in gitweb to not use the deprecated construct. The offending code was introduced in 3562198b by Jakub Narebski. The issue is that perl will now warn about this: $ perl -wE 'for my $i qw(a b) { say $i }' Use of qw(...) as parentheses is deprecated at -e line 1. a b This caused gitweb.perl to warn on perl 5.13.5 and above, and these tests to fail on those perl versions: ./t9501-gitweb-standalone-http-status.sh (Wstat: 256 Tests: 11 Failed: 10) Failed tests: 2-11 Non-zero exit status: 1 ./t9502-gitweb-standalone-parse-output.sh (Wstat: 256 Tests: 10 Failed: 9) Failed tests: 2-10 Non-zero exit status: 1 Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Acked-by: Jakub Narębski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-16Merge branch 'maint'Libravatar Junio C Hamano1-2/+4
* maint: parse_tag_buffer(): do not prefixcmp() out of range
2011-02-16Merge branch 'maint-1.7.3' into maintLibravatar Junio C Hamano0-0/+0
* maint-1.7.3:
2011-02-16Merge branch 'maint-1.7.2' into maint-1.7.3Libravatar Junio C Hamano3-20/+26
* maint-1.7.2: fast-import: introduce "feature notes" command fast-import: clarify documentation of "feature" command
2011-02-16Merge branch 'maint-1.7.1' into maint-1.7.2Libravatar Junio C Hamano3-20/+26
* maint-1.7.1: fast-import: introduce "feature notes" command fast-import: clarify documentation of "feature" command
2011-02-16Merge branch 'maint-1.7.0' into maint-1.7.1Libravatar Junio C Hamano3-20/+26
* maint-1.7.0: fast-import: introduce "feature notes" command fast-import: clarify documentation of "feature" command
2011-02-16parse_tag_buffer(): do not prefixcmp() out of rangeLibravatar Nguyễn Thái Ngọc Duy1-2/+4
There is a check (size < 64) at the beginning of the function, but that only covers object+type lines. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15Merge branch 'maint'Libravatar Junio C Hamano15-63/+49
* maint: pull: do not display fetch usage on --help-all git-tag.txt: list all modes in the description commit,status: describe -u likewise add: describe --patch like checkout, reset commit,merge,tag: describe -m likewise clone,init: describe --template using the same wording commit,status: describe --porcelain just like push commit,tag: use same wording for -F configure: use AC_LANG_PROGRAM consistently string_list_append: always set util pointer to NULL correct type of EMPTY_TREE_SHA1_BIN
2011-02-15pull: do not display fetch usage on --help-allLibravatar Michael J Gruber1-1/+1
Currently, "git pull --help-all" displays the fetch usage info. Make it equivalent to "git pull -h" instead since "--help-all" is documented in gitcli(7). Do not try to sanitize the pull option parser (aka last hair puller). Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15git-tag.txt: list all modes in the descriptionLibravatar Michael J Gruber1-5/+6
Currently, the description sounds as if it applied always, but most of its content is true in "create tag mode" only. Make this clearer by listing all modes upfront. Also, sneak in some linguistic improvements and make it clearer that lightweight tags are "created" because "written" may be misread as "are output". Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15commit,status: describe -u likewiseLibravatar Michael J Gruber1-1/+1
They differ by one character only. Being exactly equal should help translations. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15add: describe --patch like checkout, resetLibravatar Michael J Gruber1-1/+1
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15commit,merge,tag: describe -m likewiseLibravatar Michael J Gruber3-5/+5
This also removes the superfluous "specify" and rewords the misleading "if any" which sounds as if omitting "-m" would omit the merge commit message. (It means "if a merge commit is created at all".) Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15clone,init: describe --template using the same wordingLibravatar Michael J Gruber2-3/+3
This also corrects a wrong description for clone. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15commit,status: describe --porcelain just like pushLibravatar Michael J Gruber1-2/+2
Push has the clearer description, so take that one for all. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15commit,tag: use same wording for -FLibravatar Michael J Gruber2-2/+2
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15Revert "unpack_trees(): skip trees that are the same in all input"Libravatar Junio C Hamano1-56/+0
This reverts commit 83c90314aa27ae3768c04375d02e4f3fb12b726d, which seems to have broken merge to report conflicts when there should be none.
2011-02-14configure: use AC_LANG_PROGRAM consistentlyLibravatar Ralf Wildenhues2-39/+21
Avoid warnings from Autoconf 2.68 about missing use of AC_LANG_PROGRAM and friends. Quoting autoconf-2.68/NEWS: ** The macros AC_PREPROC_IFELSE, AC_COMPILE_IFELSE, AC_LINK_IFELSE, and AC_RUN_IFELSE now warn if the first argument failed to use AC_LANG_SOURCE or AC_LANG_PROGRAM to generate the conftest file contents. A new macro AC_LANG_DEFINES_PROVIDED exists if you have a compelling reason why you cannot use AC_LANG_SOURCE but must avoid the warning. The underlying reason for that change is that AC_LANG_{SOURCE,PROGRAM} take care to supply the previously computed set of #defines (and include standard headers if so desired) for preprocessed languages like C and C++. In some cases, AC_LANG_PROGRAM is already used but not sufficiently m4-quoted, so we just need to add another set of [quotes] to prevent the autoconf warning from being triggered bogusly. Quoting all arguments (except when calling special macros that need to be expanded before recursion) is better style, anyway. These and more rules are described in detail in 'info Autoconf "Programming in M4"'. No change in the resulting config.mak.autogen after running ./configure intended. Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-14string_list_append: always set util pointer to NULLLibravatar Jeff King1-0/+1
It is not immediately obvious that the util field may contain random bytes after appending an item. Especially since the string_list_insert* functions _do_ explicitly zero the util pointer. This does not appear to be a bug in any current git code, as all callers either fill in the util field immediately or never use it. However, it is worth it to be less surprising to new users of the string-list API who may expect it to be intialized to NULL. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-14correct type of EMPTY_TREE_SHA1_BINLibravatar Jonathan Nieder4-4/+6
Functions such as hashcmp that expect a binary SHA-1 value take parameters of type "unsigned char *" to avoid accepting a textual SHA-1 passed by mistake. Unfortunately, this means passing the string literal EMPTY_TREE_SHA1_BIN requires an ugly cast. Tweak the definition of EMPTY_TREE_SHA1_BIN to produce a value of more convenient type. In the future the definition might change to extern const unsigned char empty_tree_sha1_bin[20]; #define EMPTY_TREE_SHA1_BIN empty_tree_sha1_bin Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-14Obey p4 views when using client specLibravatar Ian Wienand2-4/+51
When using the p4 client spec, this attempts to obey the client's output preferences. For example, a view like //depot/foo/branch/... //client/branch/foo/... //depot/bar/branch/... //client/branch/bar/... will result in a directory layout in the git tree of branch/ branch/foo branch/bar p4 can do various other reordering that this change doesn't support, but we should detect it and at least fail nicely. Signed-off-by: Ian Wienand <ianw@vmware.com> Acked-by: Pete Wyckoff <pw@padd.com> Acked-by: Tor Arvid Lund <torarvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-13gitignore: add test-mktemp to ignore listLibravatar Ævar Arnfjörð Bjarmason1-0/+1
Change the .gitignore to ignore test-mktemp which is built from test-mktemp.c. Arnout Engelen added this in 6cf6bb3 (Improve error messages when temporary file creation fails, 2010-12-18) but forgot to add a corresponding entry to .gitignore. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-13repo-config: add deprecation warningLibravatar René Scharfe3-2/+9
repo-config was deprecated in 5c66d0d4 on 2008-01-17. Warn the remaining users that it has been replaced by config and is going to be removed eventually. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-11Merge branch 'maint'Libravatar Junio C Hamano4-2/+33
* maint: Git 1.7.4.1 clone: fixup recurse_submodules option svn-fe: warn about experimental status Conflicts: contrib/examples/git-revert.sh contrib/svn-fe/svn-fe.txt
2011-02-11Git 1.7.4.1Libravatar Junio C Hamano4-3/+31
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-11Merge branch 'jc/fsck-fixes' into maintLibravatar Junio C Hamano1-9/+22
* jc/fsck-fixes: fsck: do not give up too early in fsck_dir() fsck: drop unused parameter from traverse_one_object()
2011-02-11clone: fixup recurse_submodules optionLibravatar Chris Packham1-1/+1
The recurse_submodules option was added in ccdd3da6 to bring 'git clone' into line with 'git fetch' and future commands. The correct option should have been "recurse-submodules". Signed-off-by: Chris Packham <judge.packham@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-11svn-fe: warn about experimental statusLibravatar Jonathan Nieder1-0/+3
svn-fe is young and some coming cleanups might involve backward incompatible UI changes. Add some words of warning to the manual so early adopters that are not following the project closely don't get burned. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10Merge branch 'maint'Libravatar Junio C Hamano4-4/+11
* maint: compat: helper for detecting unsigned overflow
2011-02-10compat: helper for detecting unsigned overflowLibravatar Jonathan Nieder4-4/+11
The idiom (a + b < a) works fine for detecting that an unsigned integer has overflowed, but a more explicit unsigned_add_overflows(a, b) might be easier to read. Define such a macro, expanding roughly to ((a) < UINT_MAX - (b)). Because the expansion uses each argument only once outside of sizeof() expressions, it is safe to use with arguments that have side effects. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>