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2008-02-20diff: fix java funcname pattern for solarisLibravatar Jeff King1-1/+1
The Solaris regex library doesn't like having the '$' anchor inside capture parentheses. It rejects the match, causing t4018 to fail. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-18Add color.ui variable which globally enables colorization if setLibravatar Matthias Kestenholz1-3/+3
Signed-off-by: Matthias Kestenholz <mk@spinlock.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-16Merge branch 'sp/safecrlf'Libravatar Junio C Hamano1-1/+1
* sp/safecrlf: safecrlf: Add mechanism to warn about irreversible crlf conversions
2008-02-16Merge branch 'maint'Libravatar Junio C Hamano1-14/+6
* maint: commit: discard index after setting up partial commit filter-branch: handle filenames that need quoting diff: Fix miscounting of --check output hg-to-git: fix parent analysis mailinfo: feed only one line to handle_filter() for QP input diff.c: add "const" qualifier to "char *cmd" member of "struct ll_diff_driver" Add "const" qualifier to "char *excludes_file". Add "const" qualifier to "char *editor_program". Add "const" qualifier to "char *pager_program". config: add 'git_config_string' to refactor string config variables. diff.c: remove useless check for value != NULL fast-import: check return value from unpack_entry() Validate nicknames of remote branches to prohibit confusing ones diff.c: replace a 'strdup' with 'xstrdup'. diff.c: fixup garding of config parser from value=NULL
2008-02-15diff: Fix miscounting of --check outputLibravatar Junio C Hamano1-2/+2
c1795bb (Unify whitespace checking) incorrectly made the checking function return without incrementing the line numbers when there is no whitespace problem is found on a '+' line. This resurrects the earlier behaviour. Noticed and reported by Jay Soffian. The test script was stolen from Jay's independent fix. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-15diff.c: add "const" qualifier to "char *cmd" member of "struct ll_diff_driver"Libravatar Christian Couder1-5/+2
Also use "git_config_string" to simplify code where "cmd" is set. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-15diff.c: remove useless check for value != NULLLibravatar Christian Couder1-7/+2
It is not necessary to check if value != NULL before calling 'parse_lldiff_command' as there is already a check inside this function. By the way this patch also improves the existing check inside 'parse_lldiff_command' by using: return config_error_nonbool(var); instead of: return error("%s: lacks value", var); Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-15diff.c: replace a 'strdup' with 'xstrdup'.Libravatar Christian Couder1-1/+1
Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-15diff.c: fixup garding of config parser from value=NULLLibravatar Junio C Hamano1-1/+1
Christian Couder noticed that there still were a handcrafted error() call that we should have converted to config_error_nonbool() where parse_lldiff_command() parses the configuration file. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-11Merge branch 'lt/in-core-index'Libravatar Junio C Hamano1-9/+14
* lt/in-core-index: lazy index hashing Create pathname-based hash-table lookup into index read-cache.c: introduce is_racy_timestamp() helper read-cache.c: fix a couple more CE_REMOVE conversion Also use unpack_trees() in do_diff_cache() Make run_diff_index() use unpack_trees(), not read_tree() Avoid running lstat(2) on the same cache entry. index: be careful when handling long names Make on-disk index representation separate from in-core one
2008-02-11diff.c: guard config parser from value=NULLLibravatar Junio C Hamano1-2/+12
diff.external, diff.*.command, diff.color.*, color.diff.* and diff.*.funcname configuration variables expect a string value. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-06safecrlf: Add mechanism to warn about irreversible crlf conversionsLibravatar Steffen Prohaska1-1/+1
CRLF conversion bears a slight chance of corrupting data. autocrlf=true will convert CRLF to LF during commit and LF to CRLF during checkout. A file that contains a mixture of LF and CRLF before the commit cannot be recreated by git. For text files this is the right thing to do: it corrects line endings such that we have only LF line endings in the repository. But for binary files that are accidentally classified as text the conversion can corrupt data. If you recognize such corruption early you can easily fix it by setting the conversion type explicitly in .gitattributes. Right after committing you still have the original file in your work tree and this file is not yet corrupted. You can explicitly tell git that this file is binary and git will handle the file appropriately. Unfortunately, the desired effect of cleaning up text files with mixed line endings and the undesired effect of corrupting binary files cannot be distinguished. In both cases CRLFs are removed in an irreversible way. For text files this is the right thing to do because CRLFs are line endings, while for binary files converting CRLFs corrupts data. This patch adds a mechanism that can either warn the user about an irreversible conversion or can even refuse to convert. The mechanism is controlled by the variable core.safecrlf, with the following values: - false: disable safecrlf mechanism - warn: warn about irreversible conversions - true: refuse irreversible conversions The default is to warn. Users are only affected by this default if core.autocrlf is set. But the current default of git is to leave core.autocrlf unset, so users will not see warnings unless they deliberately chose to activate the autocrlf mechanism. The safecrlf mechanism's details depend on the git command. The general principles when safecrlf is active (not false) are: - we warn/error out if files in the work tree can modified in an irreversible way without giving the user a chance to backup the original file. - for read-only operations that do not modify files in the work tree we do not not print annoying warnings. There are exceptions. Even though... - "git add" itself does not touch the files in the work tree, the next checkout would, so the safety triggers; - "git apply" to update a text file with a patch does touch the files in the work tree, but the operation is about text files and CRLF conversion is about fixing the line ending inconsistencies, so the safety does not trigger; - "git diff" itself does not touch the files in the work tree, it is often run to inspect the changes you intend to next "git add". To catch potential problems early, safety triggers. The concept of a safety check was originally proposed in a similar way by Linus Torvalds. Thanks to Dimitry Potapov for insisting on getting the naked LF/autocrlf=true case right. Signed-off-by: Steffen Prohaska <prohaska@zib.de>
2008-01-21Avoid running lstat(2) on the same cache entry.Libravatar Junio C Hamano1-9/+14
Aside from the lstat(2) done for work tree files, there are quite many lstat(2) calls in refname dwimming codepath. This patch is not about reducing them. * It adds a new ce_flag, CE_UPTODATE, that is meant to mark the cache entries that record a regular file blob that is up to date in the work tree. If somebody later walks the index and wants to see if the work tree has changes, they do not have to be checked with lstat(2) again. * fill_stat_cache_info() marks the cache entry it just added with CE_UPTODATE. This has the effect of marking the paths we write out of the index and lstat(2) immediately as "no need to lstat -- we know it is up-to-date", from quite a lot fo callers: - git-apply --index - git-update-index - git-checkout-index - git-add (uses add_file_to_index()) - git-commit (ditto) - git-mv (ditto) * refresh_cache_ent() also marks the cache entry that are clean with CE_UPTODATE. * write_index is changed not to write CE_UPTODATE out to the index file, because CE_UPTODATE is meant to be transient only in core. For the same reason, CE_UPDATE is not written to prevent an accident from happening. Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-18color unchanged lines as "plain" in "diff --color-words"Libravatar Jeff King1-5/+5
These were mistakenly being colored in "meta" color. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-16Correct spelling in diff.c commentLibravatar Bill Lear1-1/+1
Correct a spelling mistake in a comment. Signed-off-by: Bill Lear <rael@zopyra.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-06diff: do not chomp hunk-header in the middle of a characterLibravatar Junio C Hamano1-0/+25
We truncate hunk-header line at 80 bytes, but that 80th byte could be in the middle of a character, which is bad. This uses pick_one_utf8_char() function to make sure we do not cut a character in the middle. This assumes that the internal representation of the text is UTF-8. This needs to be extended in the future but the optimal direction has not been decided yet. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-04diff: remove lazy config loadingLibravatar Jeff King1-9/+0
There is no point to this. Either: 1. The program has already loaded git_diff_ui_config, in which case this is a noop. 2. The program didn't, which means it is plumbing that does not _want_ git_diff_ui_config to be loaded. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-04diff: load funcname patterns in "basic" configLibravatar Jeff King1-3/+8
The funcname patterns influence the "comment" on @@ lines of the diff. They are safe to use with plumbing since they don't fundamentally change the meaning of the diff in any way. Since all diff users call either diff_ui_config or diff_basic_config, we can get rid of the lazy reading of the config. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-04add a "basic" diff config callbackLibravatar Jeff King1-0/+6
The diff porcelain uses git_diff_ui_config to set porcelain-ish config options, like automatically turning on color. The plumbing specifically avoids calling this function, since it doesn't want things like automatic color or rename detection. However, some diff options should be set for both plumbing and porcelain. For example, one can still turn on color in git-diff-files using the --color command line option. This means we want the color config from color.diff.* (so that once color is on, we use the user's preferred scheme), but _not_ the color.diff variable. We split the diff config into "ui" and "basic", where "basic" is suitable for use by plumbing (so _most_ things affecting the output should still go into the "ui" part). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-26Fix rewrite_diff() name quoting.Libravatar Junio C Hamano1-3/+9
This moves the logic to quote two paths (prefix + path) in C-style introduced in the previous commit from the dump_quoted_path() in combine-diff.c to quote.c, and uses it to fix rewrite_diff() that never C-quoted the pathnames correctly. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-20Teach diff machinery to display other prefixes than "a/" and "b/"Libravatar Johannes Schindelin1-8/+17
With the new options "--src-prefix=<prefix>", "--dst-prefix=<prefix>" and "--no-prefix", you can now control the path prefixes of the diff machinery. These used to by hardwired to "a/" for the source prefix and "b/" for the destination prefix. Initial patch by Pascal Obry. Sane option names suggested by Linus. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-17Support config variable diff.externalLibravatar Johannes Schindelin1-0/+7
We had the diff.external variable in the documentation of the config file since its conception, but failed to respect it. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-13Make "diff --check" output match "git apply"Libravatar Wincent Colaiuta1-2/+1
For consistency, make the two tools report whitespace errors in the same way (the output of "diff --check" has been tweaked to match that of "git apply"). Note that although the textual content is basically the same only "git diff --check" provides a colorized version of the problematic lines; making "git apply" do colorization will require more extensive changes (figuring out the diff colorization preferences of the user) and so that will be a subject for another commit. Signed-off-by: Wincent Colaiuta <win@wincent.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-13Unify whitespace checkingLibravatar Wincent Colaiuta1-119/+19
This commit unifies three separate places where whitespace checking was performed: - the whitespace checking previously done in builtin-apply.c is extracted into a function in ws.c - the equivalent logic in "git diff" is removed - the emit_line_with_ws() function is also removed because that also rechecks the whitespace, and its functionality is rolled into ws.c The new function is called check_and_emit_line() and it does two things: checks a line for whitespace errors and optionally emits it. The checking is based on lines of content rather than patch lines (in other words, the caller must strip the leading "+" or "-"); this was suggested by Junio on the mailing list to allow for a future extension to "git show" to display whitespace errors in blobs. At the same time we teach it to report all classes of whitespace errors found for a given line rather than reporting only the first found error. Signed-off-by: Wincent Colaiuta <win@wincent.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-13diff --check: minor fixupsLibravatar Junio C Hamano1-5/+14
There is no reason --exit-code and --check-diff must be mutually exclusive, so assign different bits to different results and allow them to be returned from the command. Introduce diff_result_code() to factor out the common code to decide final status code based on diffopt settings and use it everywhere. Update tests to match the above fix. Turning pager off when "diff --check" is used is a regression. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-13"diff --check" should affect exit statusLibravatar Wincent Colaiuta1-0/+9
"git diff" has a --check option that can be used to check for whitespace problems but it only reported by printing warnings to the console. Now when the --check option is used we give a non-zero exit status, making "git diff --check" nicer to use in scripts and hooks. Signed-off-by: Wincent Colaiuta <win@wincent.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-13xdl_diff: identify call sites.Libravatar Junio C Hamano1-5/+5
This inserts a new function xdi_diff() that currently does not do anything other than calling the underlying xdl_diff() to the callchain of current callers of xdl_diff() function. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-12Fix "diff --check" whitespace detectionLibravatar Wincent Colaiuta1-3/+10
"diff --check" would only detect spaces before tabs if a tab was the last character in the leading indent. Fix that and add a test case to make sure the bug doesn't regress in the future. Signed-off-by: Wincent Colaiuta <win@wincent.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-12git-diff --numstat -z: make it machine readableLibravatar Junio C Hamano1-32/+68
The "-z" format is all about machine parsability, but showing renamed paths as "common/{a => b}/suffix" makes it impossible. The scripts would never have successfully parsed "--numstat -z -M" in the old format. This fixes the output format in a (hopefully minimally) backward incompatible way. * The output without -z is not changed. This has given a good way for humans to view added and deleted lines separately, and showing the path in combined, shorter way would preserve readability. * The output with -z is unchanged for paths that do not involve renames. Existing scripts that do not pass -M/-C are not affected at all. * The output with -z for a renamed path is shown in a format that can easily be distinguished from an unrenamed path. This is based on Jakub Narebski's patch. Bugs and documentation typos are mine. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-12Use "whitespace" consistentlyLibravatar Wincent Colaiuta1-2/+2
For consistency, change "white space" and "whitespaces" to "whitespace", fixing a couple of adjacent grammar problems in the docs. Signed-off-by: Wincent Colaiuta <win@wincent.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-09Merge branch 'jc/spht'Libravatar Junio C Hamano1-11/+29
* jc/spht: Use gitattributes to define per-path whitespace rule core.whitespace: documentation updates. builtin-apply: teach whitespace_rules builtin-apply: rename "whitespace" variables and fix styles core.whitespace: add test for diff whitespace error highlighting git-diff: complain about >=8 consecutive spaces in initial indent War on whitespace: first, a bit of retreat. Conflicts: cache.h config.c diff.c
2007-12-06Use gitattributes to define per-path whitespace ruleLibravatar Junio C Hamano1-7/+12
The `core.whitespace` configuration variable allows you to define what `diff` and `apply` should consider whitespace errors for all paths in the project (See gitlink:git-config[1]). This attribute gives you finer control per path. For example, if you have these in the .gitattributes: frotz whitespace nitfol -whitespace xyzzy whitespace=-trailing all types of whitespace problems known to git are noticed in path 'frotz' (i.e. diff shows them in diff.whitespace color, and apply warns about them), no whitespace problem is noticed in path 'nitfol', and the default types of whitespace problems except "trailing whitespace" are noticed for path 'xyzzy'. A project with mixed Python and C might want to have: *.c whitespace *.py whitespace=-indent-with-non-tab in its toplevel .gitattributes file. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-05git config --get-colorboolLibravatar Junio C Hamano1-1/+1
This adds an option to help scripts find out color settings from the configuration file. git config --get-colorbool color.diff inspects color.diff variable, and exits with status 0 (i.e. success) if color is to be used. It exits with status 1 otherwise. If a script wants "true"/"false" answer to the standard output of the command, it can pass an additional boolean parameter to its command line, telling if its standard output is a terminal, like this: git config --get-colorbool color.diff true When called like this, the command outputs "true" to its standard output if color is to be used (i.e. "color.diff" says "always", "auto", or "true"), and "false" otherwise. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-21Fix "quote" misconversion for rewrite diff output.Libravatar Junio C Hamano1-1/+1
663af3422a648e87945e4d8c0cc3e13671f2bbde (Full rework of quote_c_style and write_name_quoted.) mistakenly used puts() when writing out a fixed string when it did not want to add a terminating LF. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-11Reorder diff_opt_parse options more logically per topics.Libravatar Pierre Habouzit1-53/+63
This is a line reordering patch _only_. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-11Make the diff_options bitfields be an unsigned with explicit masks.Libravatar Pierre Habouzit1-63/+60
reverse_diff was a bit-value in disguise, it's merged in the flags now. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-02git-diff: complain about >=8 consecutive spaces in initial indentLibravatar Junio C Hamano1-2/+12
This introduces a new whitespace error type, "indent-with-non-tab". The error is about starting a line with 8 or more SP, instead of indenting it with a HT. This is not enabled by default, as some projects employ an indenting policy to use only SPs and no HTs. The kernel folks and git contributors may want to enable this detection with: [core] whitespace = indent-with-non-tab Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-02War on whitespace: first, a bit of retreat.Libravatar Junio C Hamano1-5/+8
This introduces core.whitespace configuration variable that lets you specify the definition of "whitespace error". Currently there are two kinds of whitespace errors defined: * trailing-space: trailing whitespaces at the end of the line. * space-before-tab: a SP appears immediately before HT in the indent part of the line. You can specify the desired types of errors to be detected by listing their names (unique abbreviations are accepted) separated by comma. By default, these two errors are always detected, as that is the traditional behaviour. You can disable detection of a particular type of error by prefixing a '-' in front of the name of the error, like this: [core] whitespace = -trailing-space This patch teaches the code to output colored diff with DIFF_WHITESPACE color to highlight the detected whitespace errors to honor the new configuration. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-01Merge branch 'js/forkexec'Libravatar Junio C Hamano1-35/+3
* js/forkexec: Use the asyncronous function infrastructure to run the content filter. Avoid a dup2(2) in apply_filter() - start_command() can do it for us. t0021-conversion.sh: Test that the clean filter really cleans content. upload-pack: Run rev-list in an asynchronous function. upload-pack: Move the revision walker into a separate function. Use the asyncronous function infrastructure in builtin-fetch-pack.c. Add infrastructure to run a function asynchronously. upload-pack: Use start_command() to run pack-objects in create_pack_file(). Have start_command() create a pipe to read the stderr of the child. Use start_comand() in builtin-fetch-pack.c instead of explicit fork/exec. Use run_command() to spawn external diff programs instead of fork/exec. Use start_command() to run content filters instead of explicit fork/exec. Use start_command() in git_connect() instead of explicit fork/exec. Change git_connect() to return a struct child_process instead of a pid_t. Conflicts: builtin-fetch-pack.c
2007-10-26copy vs rename detection: avoid unnecessary O(n*m) loopsLibravatar Linus Torvalds1-23/+17
The core rename detection had some rather stupid code to check if a pathname was used by a later modification or rename, which basically walked the whole pathname space for all renames for each rename, in order to tell whether it was a pure rename (no remaining users) or should be considered a copy (other users of the source file remaining). That's really silly, since we can just keep a count of users around, and replace all those complex and expensive loops with just testing that simple counter (but this all depends on the previous commit that shared the diff_filespec data structure by using a separate reference count). Note that the reference count is not the same as the rename count: they behave otherwise rather similarly, but the reference count is tied to the allocation (and decremented at de-allocation, so that when it turns zero we can get rid of the memory), while the rename count is tied to the renames and is decremented when we find a rename (so that when it turns zero we know that it was a rename, not a copy). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-10-26Ref-count the filespecs used by diffcoreLibravatar Linus Torvalds1-4/+11
Rather than copy the filespecs when introducing new versions of them (for rename or copy detection), use a refcount and increment the count when reusing the diff_filespec. This avoids unnecessary allocations, but the real reason behind this is a future enhancement: we will want to track shared data across the copy/rename detection. In order to efficiently notice when a filespec is used by a rename, the rename machinery wants to keep track of a rename usage count which is shared across all different users of the filespec. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-10-22Correct some sizeof(size_t) != sizeof(unsigned long) typing errorsLibravatar René Scharfe1-2/+6
Fix size_t vs. unsigned long pointer mismatch warnings introduced with the addition of strbuf_detach(). Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-10-21Use run_command() to spawn external diff programs instead of fork/exec.Libravatar Johannes Sixt1-35/+3
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-10-03Merge branch 'ph/strbuf'Libravatar Junio C Hamano1-229/+123
* ph/strbuf: (44 commits) Make read_patch_file work on a strbuf. strbuf_read_file enhancement, and use it. strbuf change: be sure ->buf is never ever NULL. double free in builtin-update-index.c Clean up stripspace a bit, use strbuf even more. Add strbuf_read_file(). rerere: Fix use of an empty strbuf.buf Small cache_tree_write refactor. Make builtin-rerere use of strbuf nicer and more efficient. Add strbuf_cmp. strbuf_setlen(): do not barf on setting length of an empty buffer to 0 sq_quote_argv and add_to_string rework with strbuf's. Full rework of quote_c_style and write_name_quoted. Rework unquote_c_style to work on a strbuf. strbuf API additions and enhancements. nfv?asprintf are broken without va_copy, workaround them. Fix the expansion pattern of the pseudo-static path buffer. builtin-for-each-ref.c::copy_name() - do not overstep the buffer. builtin-apply.c: fix a tiny leak introduced during xmemdupz() conversion. Use xmemdupz() in many places. ...
2007-10-02rename diff_free_filespec_data_large() to diff_free_filespec_blob()Libravatar Junio C Hamano1-2/+2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-10-02diffcore-rename: cache file deltasLibravatar Jeff King1-1/+6
We find rename candidates by computing a fingerprint hash of each file, and then comparing those fingerprints. There are inherently O(n^2) comparisons, so it pays in CPU time to hoist the (rather expensive) computation of the fingerprint out of that loop (or to cache it once we have computed it once). Previously, we didn't keep the filespec information around because then we had the potential to consume a great deal of memory. However, instead of keeping all of the filespec data, we can instead just keep the fingerprint. This patch implements and uses diff_free_filespec_data_large to accomplish that goal. We also have to change estimate_similarity not to needlessly repopulate the filespec data when we already have the hash. Practical tests showed 4.5x speedup for a 10% memory usage increase. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-29strbuf change: be sure ->buf is never ever NULL.Libravatar Pierre Habouzit1-8/+6
For that purpose, the ->buf is always initialized with a char * buf living in the strbuf module. It is made a char * so that we can sloppily accept things that perform: sb->buf[0] = '\0', and because you can't pass "" as an initializer for ->buf without making gcc unhappy for very good reasons. strbuf_init/_detach/_grow have been fixed to trust ->alloc and not ->buf anymore. as a consequence strbuf_detach is _mandatory_ to detach a buffer, copying ->buf isn't an option anymore, if ->buf is going to escape from the scope, and eventually be free'd. API changes: * strbuf_setlen now always works, so just make strbuf_reset a convenience macro. * strbuf_detatch takes a size_t* optional argument (meaning it can be NULL) to copy the buffer's len, as it was needed for this refactor to make the code more readable, and working like the callers. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-20Full rework of quote_c_style and write_name_quoted.Libravatar Pierre Habouzit1-193/+110
* quote_c_style works on a strbuf instead of a wild buffer. * quote_c_style is now clever enough to not add double quotes if not needed. * write_name_quoted inherits those advantages, but also take a different set of arguments. Now instead of asking for quotes or not, you pass a "terminator". If it's \0 then we assume you don't want to escape, else C escaping is performed. In any case, the terminator is also appended to the stream. It also no longer takes the prefix/prefix_len arguments, as it's seldomly used, and makes some optimizations harder. * write_name_quotedpfx is created to work like write_name_quoted and take the prefix/prefix_len arguments. Thanks to those API changes, diff.c has somehow lost weight, thanks to the removal of functions that were wrappers around the old write_name_quoted trying to give it a semantics like the new one, but performing a lot of allocations for this goal. Now we always write directly to the stream, no intermediate allocation is performed. As a side effect of the refactor in builtin-apply.c, the length of the bar graphs in diffstats are not affected anymore by the fact that the path was clipped. Signed-off-by: Pierre Habouzit <madcoder@debian.org>
2007-09-18Use xmemdupz() in many places.Libravatar Pierre Habouzit1-11/+2
Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-18Merge branch 'master' into ph/strbufLibravatar Junio C Hamano1-1/+1
* master: (94 commits) Fixed update-hook example allow-users format. Documentation/git-svn: updated design philosophy notes t/t4014: test "am -3" with mode-only change. git-commit.sh: Shell script cleanup preserve executable bits in zip archives Fix lapsus in builtin-apply.c git-push: documentation and tests for pushing only branches git-svnimport: Use separate arguments in the pipe for git-rev-parse contrib/fast-import: add perl version of simple example contrib/fast-import: add simple shell example rev-list --bisect: Bisection "distance" clean up. rev-list --bisect: Move some bisection code into best_bisection. rev-list --bisect: Move finding bisection into do_find_bisection. Document ls-files --with-tree=<tree-ish> git-commit: partial commit of paths only removed from the index git-commit: Allow partial commit of file removal. send-email: make message-id generation a bit more robust git-apply: fix whitespace stripping git-gui: Disable native platform text selection in "lists" apply --index-info: fall back to current index for mode changes ...