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* Merge branch 'jb/required-filter'Junio C Hamano2012-02-28
|\ | | | | | | | | | | | | | | * jb/required-filter: Add a setting to require a filter to be successful Conflicts: convert.c
| * Add a setting to require a filter to be successfulJehan Bing2012-02-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By default, a missing filter driver or a failure from the filter driver is not an error, but merely makes the filter operation a no-op pass through. This is useful to massage the content into a shape that is more convenient for the platform, filesystem, and the user to use, and the content filter mechanism is not used to turn something unusable into usable. However, we could also use of the content filtering mechanism and store the content that cannot be directly used in the repository (e.g. a UUID that refers to the true content stored outside git, or an encrypted content) and turn it into a usable form upon checkout (e.g. download the external content, or decrypt the encrypted content). For such a use case, the content cannot be used when filter driver fails, and we need a way to tell Git to abort the whole operation for such a failing or missing filter driver. Add a new "filter.<driver>.required" configuration variable to mark the second use case. When it is set, git will abort the operation when the filter driver does not exist or exits with a non-zero status code. Signed-off-by: Jehan Bing <jehan@orb.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * Merge branch 'jc/maint-lf-to-crlf-keep-crlf'Junio C Hamano2011-12-22
| |\ | | | | | | | | | | | | * jc/maint-lf-to-crlf-keep-crlf: lf_to_crlf_filter(): resurrect CRLF->CRLF hack
* | \ Merge branch 'jk/maint-avoid-streaming-filtered-contents'Junio C Hamano2012-02-26
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | * jk/maint-avoid-streaming-filtered-contents: do not stream large files to pack when filters are in use teach dry-run convert_to_git not to require a src buffer teach convert_to_git a "dry run" mode
| * | | teach dry-run convert_to_git not to require a src bufferJeff King2012-02-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we call convert_to_git in dry-run mode, it may still want to look at the source buffer, because some CRLF conversion modes depend on analyzing the source to determine whether it is in fact convertible CRLF text. However, the main motivation for convert_to_git's dry-run mode is that we would decide which method to use to acquire the blob's data (streaming versus in-core). Requiring this source analysis creates a chicken-and-egg problem. We are better off simply guessing that anything we can't analyze will end up needing conversion. This patch lets a caller specify a NULL src buffer when using dry-run mode (and only dry-run mode). A non-zero return value goes from "we would convert" to "we might convert"; a zero return value remains "we would definitely not convert". Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | teach convert_to_git a "dry run" modeJeff King2012-02-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some callers may want to know whether convert_to_git will actually do anything before performing the conversion itself (e.g., to decide whether to stream or handle blobs in-core). This patch lets callers specify the dry run mode by passing a NULL destination buffer. The return value, instead of indicating whether conversion happened, will indicate whether conversion would occur. For readability, we also include a wrapper function which makes it more obvious we are not actually performing the conversion. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | Ignore SIGPIPE when running a filter driverJehan Bing2012-02-21
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a filter is not defined or if it fails, git should behave as if the filter is a no-op passthru. However, if the filter exits before reading all the content, depending on the timing, git could be killed with SIGPIPE when it tries to write to the pipe connected to the filter. Ignore SIGPIPE while processing the filter to give us a chance to check the return value from a failed write, in order to detect and act on this mode of failure in a more controlled way. Signed-off-by: Jehan Bing <jehan@orb.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'jc/maint-lf-to-crlf-keep-crlf' into maintJunio C Hamano2011-12-28
|\ \ \ | |/ / |/| / | |/ | | * jc/maint-lf-to-crlf-keep-crlf: lf_to_crlf_filter(): resurrect CRLF->CRLF hack
| * lf_to_crlf_filter(): resurrect CRLF->CRLF hackJunio C Hamano2011-12-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The non-streaming version of the filter counts CRLF and LF in the whole buffer, and returns without doing anything when they match (i.e. what is recorded in the object store already uses CRLF). This was done to help people who added files from the DOS world before realizing they want to go cross platform and adding .gitattributes to tell Git that they only want CRLF in their working tree. The streaming version of the filter does not want to read the whole thing before starting to work, as that defeats the whole point of streaming. So we instead check what byte follows CR whenever we see one, and add CR before LF only when the LF does not immediately follow CR already to keep CRLF as is. Reported-and-tested-by: Ralf Thielow Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'cn/maint-lf-to-crlf-filter' into maintJunio C Hamano2011-12-21
|\ \ | |/ | | | | | | | | * cn/maint-lf-to-crlf-filter: lf_to_crlf_filter(): tell the caller we added "\n" when draining convert: track state in LF-to-CRLF filter
| * lf_to_crlf_filter(): tell the caller we added "\n" when drainingJunio C Hamano2011-12-16
| | | | | | | | | | | | | | | | | | This can only happen when the input size is multiple of the buffer size of the cascade filter (16k) and ends with an LF, but in such a case, the code forgot to tell the caller that it added the "\n" it could not add during the last round. Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * convert: track state in LF-to-CRLF filterCarlos Martín Nieto2011-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | There may not be enough space to store CRLF in the output. If we don't fill the buffer, then the filter will keep getting called with the same short buffer and will loop forever. Instead, always store the CR and record whether there's a missing LF if so we store it in the output buffer the next time the function gets called. Reported-by: Henrik Grubbström <grubba@roxen.com> Signed-off-by: Carlos Martín Nieto <cmn@elego.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | convert.c: Fix return type of git_path_check_eol()Ramsay Jones2011-11-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The git_path_check_eol() function converts a string value to the corresponding 'enum eol' value. However, the function is currently declared to return an 'enum crlf_action', which causes sparse to complain thus: SP convert.c convert.c:736:50: warning: mixing different enum types convert.c:736:50: int enum crlf_action versus convert.c:736:50: int enum eol In order to suppress the warning, we simply correct the return type in the function declaration. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | convert: don't mix enum with intRamkumar Ramachandra2011-11-15
|/ | | | | Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Merge branch 'tr/maint-ident-to-git-memmove'Junio C Hamano2011-09-02
|\ | | | | | | | | * tr/maint-ident-to-git-memmove: Use memmove in ident_to_git
| * Use memmove in ident_to_gitThomas Rast2011-08-29
| | | | | | | | | | | | | | | | | | convert_to_git sets src=dst->buf if any of the preceding conversions actually did any work. Thus in ident_to_git we have to use memmove instead of memcpy as far as src->dst copying is concerned. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Rename git_checkattr() to git_check_attr()Michael Haggerty2011-08-04
| | | | | | | | | | | | | | Suggested by: Junio Hamano <gitster@pobox.com> Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | streaming: filter cascadingJunio C Hamano2011-05-26
| | | | | | | | | | | | | | This implements an internal "cascade" filter mechanism that plugs two filters in series. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | streaming filter: ident filterJunio C Hamano2011-05-26
| | | | | | | | | | | | | | Add support for "ident" filter on the output codepath. This does not work with lf-to-crlf filter together (yet). Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Add LF-to-CRLF streaming conversionJunio C Hamano2011-05-26
| | | | | | | | | | | | | | If we do not have to guess or validate by scanning the input, we can just stream this through. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | stream filter: add "no more input" to the filtersJunio C Hamano2011-05-26
| | | | | | | | | | | | | | | | | | | | | | Some filters may need to buffer the input and look-ahead inside it to decide what to output, and they may consume more than zero bytes of input and still not produce any output. After feeding all the input, pass NULL as input as keep calling stream_filter() to let such filters know there is no more input coming, and it is time for them to produce the remaining output based on the buffered input. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Add streaming filter APIJunio C Hamano2011-05-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This introduces an API to plug custom filters to an input stream. The caller gets get_stream_filter("path") to obtain an appropriate filter for the path, and then uses it when opening an input stream via open_istream(). After that, the caller can read from the stream with read_istream(), and close it with close_istream(), just like an unfiltered stream. This only adds a "null" filter that is a pass-thru filter, but later changes can add LF-to-CRLF and other filters, and the callers of the streaming API do not have to change. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | convert: CRLF_INPUT is a no-op in the output codepathJunio C Hamano2011-05-20
| | | | | | | | Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | streaming_write_entry(): use streaming API in write_entry()Junio C Hamano2011-05-20
|/ | | | | | | | | | | | | | | | | | | | | | When the output to a path does not have to be converted, we can read from the object database from the streaming API and write to the file in the working tree, without having to hold everything in the memory. The ident, auto- and safe- crlf conversions inherently require you to read the whole thing before deciding what to do, so while it is technically possible to support them by using a buffer of an unbound size or rewinding and reading the stream twice, it is less practical than the traditional "read the whole thing in core and convert" approach. Adding streaming filters for the other conversions on top of this should be doable by tweaking the can_bypass_conversion() function (it should be renamed to can_filter_stream() when it happens). Then the streaming API can be extended to wrap the git_istream streaming_write_entry() opens on the underlying object in another git_istream that reads from it, filters what is read, and let the streaming_write_entry() read the filtered result. But that is outside the scope of this series. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* convert: make it harder to screw up adding a conversion attributeJunio C Hamano2011-05-09
| | | | | | | | | | | | The current internal API requires the callers of setup_convert_check() to supply the git_attr_check structures (hence they need to know how many to allocate), but they grab the same set of attributes for given path. Define a new convert_attrs() API that fills a higher level information that the callers (convert_to_git and convert_to_working_tree) really want, and move the common code to interact with the attributes system to it. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* convert: make it safer to add conversion attributesJunio C Hamano2011-05-09
| | | | | | | | | | | The places that need to pass an array of "struct git_attr_check" needed to be careful to pass a large enough array and know what index each element lied. Make it safer and easier to code these. Besides, the hard-coded sequence of initializing various attributes was too ugly after we gained more than a few attributes. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* convert: give saner names to crlf/eol variables, types and functionsJunio C Hamano2011-05-09
| | | | | | | | | | | | | | | | | | | Back when the conversion was only about the end-of-line convention, it might have made sense to call what we do upon seeing CR/LF simply an "action", but these days the conversion routines do a lot more than just tweaking the line ending. Raname "action" to "crlf_action". The function that decides what end of line conversion to use on the output codepath was called "determine_output_conversion", as if there is no other kind of output conversion. Rename it to "output_eol"; it is a function that returns what EOL convention is to be used. A function that decides what "crlf_action" needs to be used on the input codepath, given what conversion attribute is set to the path and global end-of-line convention, was called "determine_action". Rename it to "input_crlf_action". Signed-off-by: Junio C Hamano <gitster@pobox.com>
* convert: rename the "eol" global variable to "core_eol"Junio C Hamano2011-05-09
| | | | | | | | | | | | | Yes, it is clear that "eol" wants to mean some sort of end-of-line thing, but as the name of a global variable, it is way too short to describe what kind of end-of-line thing it wants to represent. Besides, there are many codepaths that want to use their own local "char *eol" variable to point at the end of the current line they are processing. This global variable holds what we read from core.eol configuration variable. Name it as such. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* enums: omit trailing comma for portabilityJonathan Nieder2011-03-16
| | | | | | | | | | | | | | Since v1.7.2-rc0~23^2~2 (Add per-repository eol normalization, 2010-05-19), building with gcc -std=gnu89 -pedantic produces warnings like the following: convert.c:21:11: warning: comma at end of enumerator list [-pedantic] gcc is right to complain --- these commas are not permitted in C89. In the spirit of v1.7.2-rc0~32^2~16 (2010-05-14), remove them. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* convert filter: supply path to external driverPete Wyckoff2010-12-22
| | | | | | | | | | | | | | | | | | Filtering to support keyword expansion may need the name of the file being filtered. In particular, to support p4 keywords like $File: //depot/product/dir/script.sh $ the smudge filter needs to know the name of the file it is smudging. Allow "%f" in the custom filter command line specified in the configuration. This will be substituted by the filename inside a single-quote pair to be passed to the shell. Signed-off-by: Pete Wyckoff <pw@padd.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Don't expand CRLFs when normalizing text during mergeEyvind Bernhardsen2010-07-02
| | | | | | | | | | Disable CRLF expansion when convert_to_working_tree() is called from normalize_buffer(). This improves performance when merging branches with conflicting line endings when core.eol=crlf or core.autocrlf=true by making the normalization act as if core.eol=lf. Signed-off-by: Eyvind Bernhardsen <eyvind.bernhardsen@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Avoid conflicts when merging branches with mixed normalizationEyvind Bernhardsen2010-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, merging across changes in line ending normalization is painful since files containing CRLF will conflict with normalized files, even if the only difference between the two versions is the line endings. Additionally, any "real" merge conflicts that exist are obscured because every line in the file has a conflict. Assume you start out with a repo that has a lot of text files with CRLF checked in (A): o---C / \ A---B---D B: Add "* text=auto" to .gitattributes and normalize all files to LF-only C: Modify some of the text files D: Try to merge C You will get a ridiculous number of LF/CRLF conflicts when trying to merge C into D, since the repository contents for C are "wrong" wrt the new .gitattributes file. Fix ll-merge so that the "base", "theirs" and "ours" stages are passed through convert_to_worktree() and convert_to_git() before a three-way merge. This ensures that all three stages are normalized in the same way, removing from consideration differences that are only due to normalization. This feature is optional for now since it changes a low-level mechanism and is not necessary for the majority of users. The "merge.renormalize" config variable enables it. Signed-off-by: Eyvind Bernhardsen <eyvind.bernhardsen@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Merge branch 'eb/core-eol'Junio C Hamano2010-06-21
|\ | | | | | | | | | | | | | | | | | | | | | | * eb/core-eol: Add "core.eol" config variable Rename the "crlf" attribute "text" Add per-repository eol normalization Add tests for per-repository eol normalization Conflicts: Documentation/config.txt Makefile
| * Add "core.eol" config variableEyvind Bernhardsen2010-06-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce a new configuration variable, "core.eol", that allows the user to set which line endings to use for end-of-line-normalized files in the working directory. It defaults to "native", which means CRLF on Windows and LF everywhere else. Note that "core.autocrlf" overrides core.eol. This means that [core] autocrlf = true puts CRLFs in the working directory even if core.eol is set to "lf". Signed-off-by: Eyvind Bernhardsen <eyvind.bernhardsen@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * Rename the "crlf" attribute "text"Eyvind Bernhardsen2010-05-19
| | | | | | | | | | | | | | | | As discussed on the list, "crlf" is not an optimal name. Linus suggested "text", which is much better. Signed-off-by: Eyvind Bernhardsen <eyvind.bernhardsen@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * Add per-repository eol normalizationEyvind Bernhardsen2010-05-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the semantics of the "crlf" attribute so that it enables end-of-line normalization when it is set, regardless of "core.autocrlf". Add a new setting for "crlf": "auto", which enables end-of-line conversion but does not override the automatic text file detection. Add a new attribute "eol" with possible values "crlf" and "lf". When set, this attribute enables normalization and forces git to use CRLF or LF line endings in the working directory, respectively. The line ending style to be used for normalized text files in the working directory is set using "core.autocrlf". When it is set to "true", CRLFs are used in the working directory; when set to "input" or "false", LFs are used. Signed-off-by: Eyvind Bernhardsen <eyvind.bernhardsen@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'fg/autocrlf'Junio C Hamano2010-06-21
|\ \ | |/ | | | | | | * fg/autocrlf: autocrlf: Make it work also for un-normalized repositories
| * autocrlf: Make it work also for un-normalized repositoriesFinn Arne Gangstad2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously, autocrlf would only work well for normalized repositories. Any text files that contained CRLF in the repository would cause problems, and would be modified when handled with core.autocrlf set. Change autocrlf to not do any conversions to files that in the repository already contain a CR. git with autocrlf set will never create such a file, or change a LF only file to contain CRs, so the (new) assumption is that if a file contains a CR, it is intentional, and autocrlf should not change that. The following sequence should now always be a NOP even with autocrlf set (assuming a clean working directory): git checkout <something> touch * git add -A . (will add nothing) git commit (nothing to commit) Previously this would break for any text file containing a CR. Some of you may have been folowing Eyvind's excellent thread about trying to make end-of-line translation in git a bit smoother. I decided to attack the problem from a different angle: Is it possible to make autocrlf behave non-destructively for all the previous problem cases? Stealing the problem from Eyvind's initial mail (paraphrased and summarized a bit): 1. Setting autocrlf globally is a pain since autocrlf does not work well with CRLF in the repo 2. Setting it in individual repos is hard since you do it "too late" (the clone will get it wrong) 3. If someone checks in a file with CRLF later, you get into problems again 4. If a repository once has contained CRLF, you can't tell autocrlf at which commit everything is sane again 5. autocrlf does needless work if you know that all your users want the same EOL style. I belive that this patch makes autocrlf a safe (and good) default setting for Windows, and this solves problems 1-4 (it solves 2 by being set by default, which is early enough for clone). I implemented it by looking for CR charactes in the index, and aborting any conversion attempt if this is found. Signed-off-by: Finn Arne Gangstad <finag@pvv.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'gv/portable'Junio C Hamano2010-06-21
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * gv/portable: test-lib: use DIFF definition from GIT-BUILD-OPTIONS build: propagate $DIFF to scripts Makefile: Tru64 portability fix Makefile: HP-UX 10.20 portability fixes Makefile: HPUX11 portability fixes Makefile: SunOS 5.6 portability fix inline declaration does not work on AIX Allow disabling "inline" Some platforms lack socklen_t type Make NO_{INET_NTOP,INET_PTON} configured independently Makefile: some platforms do not have hstrerror anywhere git-compat-util.h: some platforms with mmap() lack MAP_FAILED definition test_cmp: do not use "diff -u" on platforms that lack one fixup: do not unconditionally disable "diff -u" tests: use "test_cmp", not "diff", when verifying the result Do not use "diff" found on PATH while building and installing enums: omit trailing comma for portability Makefile: -lpthread may still be necessary when libc has only pthread stubs Rewrite dynamic structure initializations to runtime assignment Makefile: pass CPPFLAGS through to fllow customization Conflicts: Makefile wt-status.h
| * | Rewrite dynamic structure initializations to runtime assignmentGary V. Vaughan2010-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unfortunately, there are still plenty of production systems with vendor compilers that choke unless all compound declarations can be determined statically at compile time, for example hpux10.20 (I can provide a comprehensive list of our supported platforms that exhibit this problem if necessary). This patch simply breaks apart any compound declarations with dynamic initialisation expressions, and moves the initialisation until after the last declaration in the same block, in all the places necessary to have the offending compilers accept the code. Signed-off-by: Gary V. Vaughan <gary@thewrittenword.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | convert: Keep foreign $Id$ on checkout.Henrik Grubbström2010-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If there are foreign $Id$ keywords in the repository, they are most likely there for a reason. Let's keep them on checkout (which is also what the documentation indicates). Foreign $Id$ keywords are now recognized by there being multiple space separated fields in $Id:xxxxx$. Signed-off-by: Henrik Grubbström <grubba@grubba.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | convert: Safer handling of $Id$ contraction.Henrik Grubbström2010-04-10
|/ / | | | | | | | | | | | | | | | | The code to contract $Id:xxxxx$ strings could eat an arbitrary amount of source text if the terminating $ was lost. It now refuses to contract $Id:xxxxx$ strings spanning multiple lines. Signed-off-by: Henrik Grubbström <grubba@grubba.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'sp/maint-push-sideband' into sp/push-sidebandJunio C Hamano2010-02-05
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | * sp/maint-push-sideband: receive-pack: Send hook output over side band #2 receive-pack: Wrap status reports inside side-band-64k receive-pack: Refactor how capabilities are shown to the client send-pack: demultiplex a sideband stream with status data run-command: support custom fd-set in async run-command: Allow stderr to be a caller supplied pipe Update git fsck --full short description to mention packs Conflicts: run-command.c
| * run-command: support custom fd-set in asyncErik Faye-Lund2010-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the possibility to supply a set of non-0 file descriptors for async process communication instead of the default-created pipe. Additionally, we now support bi-directional communiction with the async procedure, by giving the async function both read and write file descriptors. To retain compatiblity and similar "API feel" with start_command, we require start_async callers to set .out = -1 to get a readable file descriptor. If either of .in or .out is 0, we supply no file descriptor to the async process. [sp: Note: Erik started this patch, and a huge bulk of it is his work. All bugs were introduced later by Shawn.] Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'jc/conflict-marker-size'Junio C Hamano2010-01-20
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * jc/conflict-marker-size: rerere: honor conflict-marker-size attribute rerere: prepare for customizable conflict marker length conflict-marker-size: new attribute rerere: use ll_merge() instead of using xdl_merge() merge-tree: use ll_merge() not xdl_merge() xdl_merge(): allow passing down marker_size in xmparam_t xdl_merge(): introduce xmparam_t for merge specific parameters git_attr(): fix function signature Conflicts: builtin-merge-file.c ll-merge.c xdiff/xdiff.h xdiff/xmerge.c
| * | git_attr(): fix function signatureJunio C Hamano2010-01-16
| |/ | | | | | | | | | | | | | | | | | | The function took (name, namelen) as its arguments, but all the public callers wanted to pass a full string. Demote the counted-string interface to an internal API status, and allow public callers to just pass the string to the function. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | run-command: convert simple callsites to use_shellJeff King2010-01-05
|/ | | | | | | | Now that we have the use_shell feature, these callsites can all be converted with small changes. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* run_command: return exit code as positive valueJohannes Sixt2009-07-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | As a general guideline, functions in git's code return zero to indicate success and negative values to indicate failure. The run_command family of functions followed this guideline. But there are actually two different kinds of failure: - failures of system calls; - non-zero exit code of the program that was run. Usually, a non-zero exit code of the program is a failure and means a failure to the caller. Except that sometimes it does not. For example, the exit code of merge programs (e.g. external merge drivers) conveys information about how the merge failed, and not all exit calls are actually failures. Furthermore, the return value of run_command is sometimes used as exit code by the caller. This change arranges that the exit code of the program is returned as a positive value, which can now be regarded as the "result" of the function. System call failures continue to be reported as negative values. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Replace calls to strbuf_init(&foo, 0) with STRBUF_INIT initializerBrandon Casey2008-10-12
| | | | | | | | | | | Many call sites use strbuf_init(&foo, 0) to initialize local strbuf variable "foo" which has not been accessed since its declaration. These can be replaced with a static initialization using the STRBUF_INIT macro which is just as readable, saves a function call, and takes up fewer lines. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
* Fixed text file auto-detection: treat EOF character 032 at the end of file ↵Dmitry Kakurin2008-07-11
| | | | | | | | as printable Signed-off-by: Dmitry Kakurin <Dmitry.Kakurin@gmail.com> Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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