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2009-06-03Merge branch 'maint'Libravatar Junio C Hamano1-8/+18
* maint: blame: correctly handle a path that used to be a directory add -i: do not dump patch during application Update draft release notes for 1.6.3.2 grep: fix colouring of matches with zero length Documentation: teach stash/pop workflow instead of stash/apply Change xdl_merge to generate output even for null merges t6023: merge-file fails to output anything for a degenerate merge
2009-06-03blame: correctly handle a path that used to be a directoryLibravatar Junio C Hamano1-8/+18
When trying to see if the same path exists in the parent, we ran "diff-tree" with pathspec set to the path we are interested in with the parent, and expect either to have exactly one resulting filepair (either "changed from the parent", "created when there was none") or nothing (when there is no change from the parent). If the path used to be a directory, however, we will also see unbounded number of entries that talk about the files that used to exist underneath the directory in question. Correctly pick only the entry that describes the path we are interested in in such a case (namely, the creation of the path as a regular file). Noticed by Ben Willard. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-25parse-opts: prepare for OPT_FILENAMELibravatar Stephen Boyd1-1/+1
To give OPT_FILENAME the prefix, we pass the prefix to parse_options() which passes the prefix to parse_options_start() which sets the prefix member of parse_opts_ctx accordingly. If there isn't a prefix in the calling context, passing NULL will suffice. Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-01Fix a bunch of pointer declarations (codestyle)Libravatar Felipe Contreras1-4/+4
Essentially; s/type* /type */ as per the coding guidelines. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-26Merge branch 'jc/maint-1.6.0-blame-s'Libravatar Junio C Hamano1-4/+4
* jc/maint-1.6.0-blame-s: blame: read custom grafts given by -S before calling setup_revisions() Conflicts: builtin-blame.c
2009-03-18blame: read custom grafts given by -S before calling setup_revisions()Libravatar Junio C Hamano1-4/+4
setup_revisions() while getting the command line arguments parses the given commits from the command line, which means their direct parents will not be rewritten by the custom graft file. Call read_ancestry() early to work around this issue. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-11Merge branch 'el/blame-date'Libravatar Junio C Hamano1-16/+51
* el/blame-date: Make git blame's date output format configurable, like git log
2009-03-05Make git blame's date output format configurable, like git logLibravatar Eugene Letuchy1-16/+51
Add the following: - git config value blame.date that expects one of the git log date formats (e.g. relative,local,default,iso,...); - git blame command line option --date expects one of the git log date formats; - documentation in blame-options.txt; - git blame uses the appropriate date.c functions and enums to make sense of the date format and provide appropriate data; git blame continues to line up the output columns by padding the date column up to the max width of the chosen date format. The date format for git blame without both blame.date and --date continues to be ISO for backwards compatibility. git annotate ignores the date format specifiers and continues to uses the ISO format, as before. Signed-off-by: Eugene Letuchy <eugene@facebook.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-05Merge branch 'jc/blame'Libravatar Junio C Hamano1-64/+43
* jc/blame: blame: show "previous" information in --porcelain/--incremental format git-blame: refactor code to emit "porcelain format" output
2009-02-15Merge branch 'ms/mailmap'Libravatar Junio C Hamano1-20/+32
* ms/mailmap: Move mailmap documentation into separate file Change current mailmap usage to do matching on both name and email of author/committer. Add map_user() and clear_mailmap() to mailmap Add find_insert_index, insert_at_index and clear_func functions to string_list Add mailmap.file as configurational option for mailmap location
2009-02-08Change current mailmap usage to do matching on both name and email of ↵Libravatar Marius Storm-Olsen1-19/+31
author/committer. Signed-off-by: Marius Storm-Olsen <marius@trolltech.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-08Add mailmap.file as configurational option for mailmap locationLibravatar Marius Storm-Olsen1-1/+1
This allows us to augment the repo mailmap file, and to use mailmap files elsewhere than the repository root. Meaning that the entries in mailmap.file will override the entries in "./.mailmap", should they match. Signed-off-by: Marius Storm-Olsen <marius@trolltech.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-04builtin-blame.c: Use utf8_strwidth for author's namesLibravatar Geoffrey Thomas1-5/+7
git blame misaligns output if a author's name has a differing display width and strlen; for instance, an accented Latin letter that takes two bytes to encode will cause the rest of the line to be shifted to the left by one. To fix this, use utf8_strwidth instead of strlen (and compute the padding ourselves, since printf doesn't know about UTF-8). Signed-off-by: Geoffrey Thomas <geofft@mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-17builtin-blame.c: use strbuf_readlink()Libravatar Junio C Hamano1-4/+1
When faking a commit out of the work tree contents, use strbuf_readlink() to read the contents of symbolic links. Signed-off-by: Junio C Hamano <gitster@pobox.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-08Merge branch 'rs/blame'Libravatar Junio C Hamano1-151/+56
* rs/blame: blame: use xdi_diff_hunks(), get rid of struct patch add xdi_diff_hunks() for callers that only need hunk lengths Allow alternate "low-level" emit function from xdl_diff Always initialize xpparam_t to 0 blame: inline get_patch()
2008-10-25blame: use xdi_diff_hunks(), get rid of struct patchLibravatar René Scharfe1-139/+52
Based on a patch by Brian Downing, this replaces the struct patch based code for blame passing with calls to xdi_diff_hunks(). This way we avoid generating and then parsing patches; we only let the interesting infos be passed to our callbacks instead. This makes blame a bit faster: $ blame="./git blame -M -C -C -p --incremental v1.6.0" # master $ /usr/bin/time $blame Makefile >/dev/null 1.38user 0.14system 0:01.52elapsed 100%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+12226minor)pagefaults 0swaps $ /usr/bin/time $blame cache.h >/dev/null 1.66user 0.13system 0:01.80elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+12262minor)pagefaults 0swaps # this patch series $ /usr/bin/time $blame Makefile >/dev/null 1.27user 0.12system 0:01.40elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+11836minor)pagefaults 0swaps $ /usr/bin/time $blame cache.h >/dev/null 1.52user 0.12system 0:01.70elapsed 97%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+12052minor)pagefaults 0swaps Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-25Always initialize xpparam_t to 0Libravatar Brian Downing1-0/+1
We're going to be adding some parameters to this, so we can't have any uninitialized data in it. Signed-off-by: Brian Downing <bdowning@lavos.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-25blame: inline get_patch()Libravatar René Scharfe1-20/+11
Inline get_patch() to its only call site as a preparation for getting rid of struct patch. Also we don't need to check the ptr members because fill_origin_blob() already did, and the caller didn't check for NULL anyway, so drop the test. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-21builtin-blame: Reencode commit messages according to git-log rules.Libravatar Alexander Gavrilov1-5/+11
Currently git-blame outputs text from the commit messages (e.g. the author name and the summary string) as-is, without even providing any information about the encoding used for the data. It makes interpreting the data in multilingual environment very difficult. This commit changes the blame implementation to recode the messages using the rules used by other commands like git-log. Namely, the target encoding can be specified through the i18n.commitEncoding or i18n.logOutputEncoding options, or directly on the command line using the --encoding parameter. Converting the encoding before output seems to be more friendly to the porcelain tools than simply providing the value of the encoding header, and does not require changing the output format. If anybody needs the old behavior, it is possible to achieve it by specifying --encoding=none. Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-12blame: show "previous" information in --porcelain/--incremental formatLibravatar Junio C Hamano1-30/+12
When the final blame is laid for a line to a <commit, path> pair, it also gives a "previous" information to --porcelain and --incremental output format. It gives the parent commit of the blamed commit, _and_ a path in that parent commit that corresponds to the blamed path --- in short, it is the origin that would have been blamed (or passed blame through) for the line _if_ the blamed commit did not change that line. This unfortunately makes sanity checking of refcount quite complex, so I ripped it out for now. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-12git-blame: refactor code to emit "porcelain format" outputLibravatar Junio C Hamano1-34/+31
Both the --porcelain and --incremental format shared the same output format but implemented with two identical codepaths. This merges them into one shared function. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-12Replace calls to strbuf_init(&foo, 0) with STRBUF_INIT initializerLibravatar Brandon Casey1-2/+1
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>
2008-10-06Merge branch 'maint'Libravatar Shawn O. Pearce1-0/+2
* maint: Update release notes for 1.6.0.3 Teach rebase -i to honor pre-rebase hook docs: describe pre-rebase hook do not segfault if make_cache_entry failed make prefix_path() never return NULL fix bogus "diff --git" header from "diff --no-index" Fix fetch/clone --quiet when stdout is connected builtin-blame: Fix blame -C -C with submodules. bash: remove fetch, push, pull dashed form leftovers Conflicts: diff.c
2008-10-05builtin-blame: Fix blame -C -C with submodules.Libravatar Alexander Gavrilov1-0/+2
When performing copy detection, git-blame tries to read gitlinks as blobs, which causes it to die. This patch adds a check to skip them. Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-09-06Merge branch 'maint'Libravatar Junio C Hamano1-4/+5
* maint: Update draft release notes for 1.6.0.2 stash: refresh the index before deciding if the work tree is dirty Mention the fact that 'git annotate' is only for backward compatibility. "blame -c" should be compatible with "annotate" git-gui: Fix diff parsing for lines starting with "--" or "++" git-gui: Fix string escaping in po2msg.sh git gui: show diffs with a minimum of 1 context line git-gui: update all remaining translations to French. git-gui: Update french translation
2008-09-05"blame -c" should be compatible with "annotate"Libravatar Junio C Hamano1-4/+5
There is no reason to have a separate variable cmd_is_annotate; OUTPUT_ANNOTATE_COMPAT option is supposed to produce the compatibility output, and we should produce the same output even when the command was not invoked as "annotate" but as "blame -c". Noticed by Pasky. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-03Merge branch 'maint'Libravatar Junio C Hamano1-1/+1
* maint: Start 1.6.0.2 maintenance cycle tests: use "git xyzzy" form (t7200 - t9001) tests: use "git xyzzy" form (t7000 - t7199) Fix passwd(5) ref and reflect that commit doens't use commit-tree improve handling of sideband message display tests: use "git xyzzy" form (t3600 - t6999) tests: use "git xyzzy" form (t0000 - t3599) checkout: fix message when leaving detached HEAD clone: fix creation of explicitly named target directory 'git foo' program identifies itself without dash in die() messages setup_git_directory(): fix move to worktree toplevel directory update-index: fix worktree setup Start conforming code to "git subcmd" style read-tree: setup worktree if merge is required grep: fix worktree setup diff*: fix worktree setup Conflicts: RelNotes t/t3900-i18n-commit.sh t/t7003-filter-branch.sh
2008-08-30Start conforming code to "git subcmd" styleLibravatar Heikki Orsila1-1/+1
User notifications are presented as 'git cmd', and code comments are presented as '"cmd"' or 'git's cmd', rather than 'git-cmd'. Signed-off-by: Heikki Orsila <heikki.orsila@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-14xdiff-interface: hide the whole "xdiff_emit_state" business from the callerLibravatar Junio C Hamano1-3/+1
This further enhances xdi_diff_outf() interface so that it takes two common parameters: the callback function that processes one line at a time, and a pointer to its application specific callback data structure. xdi_diff_outf() creates its own "xdiff_emit_state" structure and stashes these two away inside it, which is used by the lowest level output function in the xdiff_outf() callchain, consume_one(), to call back to the application layer. With this restructuring, we lift the requirement that the caller supplied callback data structure embeds xdiff_emit_state structure as its first member. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-13Make xdi_diff_outf interface for running xdiff_outf diffsLibravatar Brian Downing1-3/+1
To prepare for the need to initialize and release resources for an xdi_diff with the xdiff_outf output function, make a new function to wrap this usage. Old: ecb.outf = xdiff_outf; ecb.priv = &state; ... xdi_diff(file_p, file_o, &xpp, &xecfg, &ecb); New: xdi_diff_outf(file_p, file_o, &state.xm, &xpp, &xecfg, &ecb); Signed-off-by: Brian Downing <bdowning@lavos.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-31Teach --find-copies-harder to "git blame"Libravatar Junio C Hamano1-0/+4
It's equivalent to "-C -C" with the diff family. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-21Rename path_list to string_listLibravatar Johannes Schindelin1-5/+5
The name path_list was correct for the first usage of that data structure, but it really is a general-purpose string list. $ perl -i -pe 's/path-list/string-list/g' $(git grep -l path-list) $ perl -i -pe 's/path_list/string_list/g' $(git grep -l path_list) $ git mv path-list.h string-list.h $ git mv path-list.c string-list.c $ perl -i -pe 's/has_path/has_string/g' $(git grep -l has_path) $ perl -i -pe 's/path/string/g' string-list.[ch] $ git mv Documentation/technical/api-path-list.txt \ Documentation/technical/api-string-list.txt $ perl -i -pe 's/strdup_paths/strdup_strings/g' $(git grep -l strdup_paths) ... and then fix all users of string-list to access the member "string" instead of "path". Documentation/technical/api-string-list.txt needed some rewrapping, too. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-16Merge branch 'sb/dashless'Libravatar Junio C Hamano1-1/+1
* sb/dashless: Make usage strings dash-less t/: Use "test_must_fail git" instead of "! git" t/test-lib.sh: exit with small negagive int is ok with test_must_fail Conflicts: builtin-blame.c builtin-mailinfo.c builtin-mailsplit.c builtin-shortlog.c git-am.sh t/t4150-am.sh t/t4200-rerere.sh
2008-07-15Do not try to detect move/copy for entries below threshold.Libravatar Alexander Gavrilov1-5/+11
Splits for such entries are rejected anyway, so there is no point even trying to compute them. Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-15Avoid rescanning unchanged entries in search for copies.Libravatar Alexander Gavrilov1-2/+19
Repeatedly comparing the same entry against the same set of blobs in search for copies is quite pointless. This huge waste of effort can be avoided using a flag in the blame_entry structure. Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-13Make usage strings dash-lessLibravatar Stephan Beyer1-1/+1
When you misuse a git command, you are shown the usage string. But this is currently shown in the dashed form. So if you just copy what you see, it will not work, when the dashed form is no longer supported. This patch makes git commands show the dash-less version. For shell scripts that do not specify OPTIONS_SPEC, git-sh-setup.sh generates a dash-less usage string now. Signed-off-by: Stephan Beyer <s-beyer@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-09revisions: refactor handle_revision_opt into parse_revision_opt.Libravatar Pierre Habouzit1-10/+1
It seems we're using handle_revision_opt the same way each time, have a wrapper around it that does the 9-liner we copy each time instead. handle_revision_opt can be static in the module for now, it's always possible to make it public again if needed. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-09git-blame: fix lapsusLibravatar Pierre Habouzit1-1/+1
Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-08git-blame: migrate to incremental parse-option [2/2]Libravatar Pierre Habouzit1-92/+38
Now use handle_revision_args instead of parse_revisions, and simplify the handling of old-style arguments a lot thanks to the filtering. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-08git-blame: migrate to incremental parse-option [1/2]Libravatar Pierre Habouzit1-102/+118
This step merely moves the parser to an incremental version, still using parse_revisions. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-08Merge branch 'jc/blame' (early part) into HEADLibravatar Junio C Hamano1-59/+147
* 'jc/blame' (early part): git-blame --reverse builtin-blame.c: allow more than 16 parents builtin-blame.c: move prepare_final() into a separate function. rev-list --children revision traversal: --children option Conflicts: Documentation/rev-list-options.txt revision.c
2008-05-14Provide git_config with a callback-data parameterLibravatar Johannes Schindelin1-3/+3
git_config() only had a function parameter, but no callback data parameter. This assumes that all callback functions only modify global variables. With this patch, every callback gets a void * parameter, and it is hoped that this will help the libification effort. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-12git-blame --reverseLibravatar Junio C Hamano1-16/+65
This new option allows "git blame" to read an old version of the file, and up to which commit each line survived (i.e. their children rewrote the line out of the contents). The previous revision machinery update to decorate each commit with its children was leading to this change. When the --reverse option is given, we read the old version and pass blame to the children of the current suspect, instead of the usual order of starting from the latest and passing blame to parents. The standard yardstick of "blame" in git.git history is "rev-list.c" which was refactored heavily in its existence. For example: git blame -C -C -w --reverse 9de48752..master -- rev-list.c begins like this: 6c41b801 builtin-rev-list.c (JC Hamano 2008-04-02 1) #include "cache... 6c41b801 builtin-rev-list.c (JC Hamano 2008-04-02 2) #include "commi... 6c41b801 builtin-rev-list.c (JC Hamano 2008-04-02 3) #include "tree.... 6c41b801 builtin-rev-list.c (JC Hamano 2008-04-02 4) #include "blob.... 213523f4 rev-list.c (JC Hamano 2006-03-01 5) #include "epoch... 6c41b801 builtin-rev-list.c (JC Hamano 2008-04-02 6) ab57c8dd rev-list.c (JC Hamano 2006-02-24 7) #define SEEN ab57c8dd rev-list.c (JC Hamano 2006-02-24 8) #define INTERES... 213523f4 rev-list.c (JC Hamano 2006-03-01 9) #define COUNTED... 7e21c29b rev-list.c (LTorvalds 2005-07-06 10) #define SHOWN ... 6c41b801 builtin-rev-list.c (JC Hamano 2008-04-02 11) 6c41b801 builtin-rev-list.c (JC Hamano 2008-04-02 12) static const ch... b1349229 rev-list.c (LTorvalds 2005-07-26 13) "usage: git-... This reveals that the original first four lines survived until now in builtin-rev-list.c , inclusion of "epoch.h" was removed after 213523f4 while the contents was still in rev-list.c. This mode probably needs more tweaking so that the commit that removed the line (i.e. the children of the commits listed in the above sample output) is shown instead to be useful, but then there is a little matter of which child of a fork point to show. For now, you can find the diff that rewrote the fifth line above by doing: $ git log --children 213523f4^.. to find its child, which is 1025fe5 (Merge branch 'lt/rev-list' into next, 2006-03-01), and then look at that child with: $ git show 1025fe5 Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-12builtin-blame.c: allow more than 16 parentsLibravatar Junio C Hamano1-32/+61
This removes the hardcoded 16 parents limit from git-blame by allowing the parent array to be allocated dynamically. As the ultimate objective is not about allowing dodecapus, but about annotating the history upside down, it also renames "parent" in the code to "scapegoat"; the name of the game used to be "pass blame to your parents", but now it is "find a scapegoat to pass blame on". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-12builtin-blame.c: move prepare_final() into a separate function.Libravatar Junio C Hamano1-23/+33
After parsing the command line, we have a long loop to compute the commit object to start annotating from. Move the logic to a separate function, so that later patches become easier to read. It also makes fill_origin_blob() return void; the check is always done on !file->ptr, and nobody looks at the return value from the function. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-22Avoid unnecessary "if-before-free" tests.Libravatar Jim Meyering1-2/+1
This change removes all obvious useless if-before-free tests. E.g., it replaces code like this: if (some_expression) free (some_expression); with the now-equivalent: free (some_expression); It is equivalent not just because POSIX has required free(NULL) to work for a long time, but simply because it has worked for so long that no reasonable porting target fails the test. Here's some evidence from nearly 1.5 years ago: http://www.winehq.org/pipermail/wine-patches/2006-October/031544.html FYI, the change below was prepared by running the following: git ls-files -z | xargs -0 \ perl -0x3b -pi -e \ 's/\bif\s*\(\s*(\S+?)(?:\s*!=\s*NULL)?\s*\)\s+(free\s*\(\s*\1\s*\))/$2/s' Note however, that it doesn't handle brace-enclosed blocks like "if (x) { free (x); }". But that's ok, since there were none like that in git sources. Beware: if you do use the above snippet, note that it can produce syntactically invalid C code. That happens when the affected "if"-statement has a matching "else". E.g., it would transform this if (x) free (x); else foo (); into this: free (x); else foo (); There were none of those here, either. If you're interested in automating detection of the useless tests, you might like the useless-if-before-free script in gnulib: [it *does* detect brace-enclosed free statements, and has a --name=S option to make it detect free-like functions with different names] http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=blob;f=build-aux/useless-if-before-free Addendum: Remove one more (in imap-send.c), spotted by Jean-Luc Herren <jlh@gmx.ch>. Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-20Merge branch 'jc/setup'Libravatar Junio C Hamano1-3/+1
* jc/setup: builtin-mv: minimum fix to avoid losing files git-add: adjust to the get_pathspec() changes. Make blame accept absolute paths setup: sanitize absolute and funny paths in get_pathspec()
2008-02-17check return code of prepare_revision_walkLibravatar Martin Koegler1-1/+2
A failure in prepare_revision_walk can be caused by a not parseable object. Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at> 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
2008-02-06safecrlf: 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>