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* difftool: add a skeleton for the upcoming builtinJohannes Schindelin2017-01-171-470/+0
| | | | | | | | | | | | | | | | This adds a builtin difftool that still falls back to the legacy Perl version, which has been renamed to `legacy-difftool`. The idea is that the new, experimental, builtin difftool immediately hands off to the legacy difftool for now, unless the config variable difftool.useBuiltin is set to true. This feature flag will be used in the upcoming Git for Windows v2.11.0 release, to allow early testers to opt-in to use the builtin difftool and flesh out any bugs. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: use Git::* functions instead of passing around stateDavid Aguilar2016-07-281-31/+21
| | | | | | | | | | | | | Call Git::command() and friends directly wherever possible. This makes it clear that these operations can be invoked directly without needing to manage the current directory and related GIT_* environment variables. Eliminate find_repository() since we can now use wc_path() and not worry about side-effects involving environment variables. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: avoid $GIT_DIR and $GIT_WORK_TREEDavid Aguilar2016-07-281-21/+6
| | | | | | | | | | | | Environment variables are global and hard to reason about. Use the `--git-dir` and `--work-tree` arguments when invoking `git` instead of relying on the environment. Add a test to ensure that difftool's dir-diff feature works when these variables are present in the environment. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: fix argument handling in subdirsJohn Keeping2016-07-191-10/+3
| | | | | | | | | | | | | | | | | When in a subdirectory of a repository, path arguments should be interpreted relative to the current directory not the root of the working tree. The Git::repository object passed into setup_dir_diff() is configured to handle this correctly but we create a new Git::repository here without setting the WorkingSubdir argument. By simply using the existing repository, path arguments are handled relative to the current directory. Reported-by: Bernhard Kirchen <bernhard.kirchen@rwth-aachen.de> Signed-off-by: John Keeping <john@keeping.me.uk> Acked-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: handle unmerged files in dir-diff modeda/difftoolDavid Aguilar2016-05-161-0/+5
| | | | | | | | | | | | | | When files are unmerged they can show up as both unmerged and modified in the output of `git diff --raw`. This causes difftool's dir-diff to create filesystem entries for the same path twice, which fails when it encounters a duplicate path. Ensure that each worktree path is only processed once. Add a test to demonstrate the breakage. Reported-by: Jan Smets <jan@smets.cx> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: initialize variables for readabilityDavid Aguilar2016-05-161-2/+2
| | | | | | | | The code always goes into one of the two conditional blocks but make it clear that not doing so is an error condition by setting $ok to 0. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: ignore symbolic links in use_wt_fileDavid Aguilar2015-10-291-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The caller is preparing a narrowed-down copy of the working tree and this function is asked if the path should be included in that copy. If we say yes, the path from the working tree will be either symlinked or copied into the narrowed-down copy. For any path that is a symbolic link, the caller later fixes up the narrowed-down copy by unlinking the path and replacing it with a regular file it writes out that mimics the way how "git diff" compares symbolic links. Let's answer "no, you do not want to copy/symlink the working tree file" for all symbolic links from this function, as we know the result will not be used because it will be overwritten anyway. Incidentally, this also stops the function from feeding a symbolic link in the working tree to hash-object, which is a wrong thing to do to begin with. The link may be pointing at a directory, or worse may be dangling (both would be noticed as an error). Even if the link points at a regular file, hashing the contents of a file that is pointed at by the link is not correct (Git hashes the contents of the link itself, not the pointee). Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Merge branch 'da/difftool'Junio C Hamano2014-10-291-0/+12
|\ | | | | | | | | | | | | | | | | Allow diff tool backend to stop early by exiting with a non-zero status. * da/difftool: difftool: add support for --trust-exit-code difftool--helper: exit when reading a prompt answer fails
| * difftool: add support for --trust-exit-codeDavid Aguilar2014-10-281-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Teach difftool to exit when a diff tool returns a non-zero exit code when either --trust-exit-code is specified or difftool.trustExitCode is true. Forward exit codes from invoked diff tools to the caller when --trust-exit-code is used. Suggested-by: Adri Farr <14farresa@gmail.com> Helped-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | difftool: don't assume that default sh is saneda/mergetool-tool-helpCharles Bailey2014-10-151-5/+1
|/ | | | | | | | | | | | | | git-difftool used to create a command list script containing $( ... ) and explicitly calls "sh -c" with this list. Instead, allow mergetool --tool-help to take a mode parameter and call mergetool directly to invoke the show_tool_help function. This mode parameter is intented for use solely by difftool. Signed-off-by: Charles Bailey <cbailey32@bloomberg.net> Helped-by: John Keeping <john@keeping.me.uk> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: support repositories with .git-filesDavid Aguilar2014-02-241-16/+2
| | | | | | | | | | | | | | | | | | | | | | | Modern versions of "git submodule" use .git-files to setup the submodule directory. When run in a "git submodule"-created repository "git difftool --dir-diff" dies with the following error: $ git difftool -d HEAD~ fatal: This operation must be run in a work tree diff --raw --no-abbrev -z HEAD~: command returned error: 128 core.worktree is relative to the .git directory but the logic in find_worktree() does not account for it. Use `git rev-parse --show-toplevel` to find the worktree so that the dir-diff feature works inside a submodule. Reported-by: Gábor Lipták <gabor.liptak@gmail.com> Helped-by: Jens Lehmann <jens.lehmann@web.de> Helped-by: John Keeping <john@keeping.me.uk> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool --dir-diff: allow changing any clean working tree fileKenichi Saita2013-05-291-7/+2
| | | | | | | | | | | | | | | | | | The temporary directory prepared by "difftool --dir-diff" to show the result of a change can be modified by the user via the tree diff program, and we try hard not to lose changes to them after tree diff program returns to us. However, the set of files to be copied back is computed differently between --symlinks and --no-symlinks modes. The former checks all paths that start out as identical to the working tree file, while the latter checks paths that already had a local modification in the working tree, allowing changes made in the tree diff program to paths that did not have any local change to be lost. Signed-off-by: Kenichi Saita <nitoyon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: fix dir-diff when file does not exist in working treeJohn Keeping2013-05-171-0/+6
| | | | | | | | | | | Commit 02c5631 (difftool --dir-diff: symlink all files matching the working tree, 2013-03-14) does not handle the case where a file that is being compared does not exist in the working tree. Fix this by checking for existence explicitly before running git-hash-object. Reported-by: Kevin Bracey <kevin@bracey.fi> Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: don't overwrite modified filesJohn Keeping2013-03-291-14/+71
| | | | | | | | | | | | | | | | | | | | | After running the user's diff tool, git-difftool will copy any files that differ between the working tree and the temporary tree. This is useful when the user edits the file in their diff tool but is wrong if they edit the working tree file while examining the diff. Instead of copying unconditionally when the files differ, create and index from the working tree files and only copy the temporary file back if it was modified and the working tree file was not. If both files have been modified, print a warning and exit with an error. Note that we cannot use an existing index in git-difftool since those contain the modified files that need to be checked out but here we are looking at those files which are copied from the working tree and not checked out. These are precisely the files which are not in the existing indices. Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Merge branch 'jk/difftool-dir-diff-edit-fix'Junio C Hamano2013-03-281-4/+21
|\ | | | | | | | | | | | | | | | | | | | | | | "git difftool --dir-diff" made symlinks to working tree files when preparing a temporary directory structure, so that accidental edits of these files in the difftool are reflected back to the working tree, but the logic to decide when to do so was not quite right. * jk/difftool-dir-diff-edit-fix: difftool --dir-diff: symlink all files matching the working tree difftool: avoid double slashes in symlink targets git-difftool(1): fix formatting of --symlink description
| * difftool --dir-diff: symlink all files matching the working treeJohn Keeping2013-03-141-3/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some users like to edit files in their diff tool when using "git difftool --dir-diff --symlink" to compare against the working tree but difftool currently only created symlinks when a file contains unstaged changes. Change this behaviour so that symlinks are created whenever the right-hand side of the comparison has the same SHA1 as the file in the working tree. Note that textconv filters are handled in the same way as by git-diff and if a clean filter is not the inverse of its smudge filter we already get a null SHA1 from "diff --raw" and will symlink the file without going through the new hash-object based check. Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * difftool: avoid double slashes in symlink targetsJohn Keeping2013-03-141-1/+3
| | | | | | | | | | | | | | | | | | | | When we add tests for symlinks in "git difftool --dir-diff" it's easier to check the target path if we don't have to worry about double slashes separating directories. Remove the trailing slash (if present) from $workdir before creating the symlinks in order to avoid this. Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | difftool: silence uninitialized variable warningDavid Aguilar2013-02-171-1/+1
|/ | | | | | | | | Git::config() returns `undef` when given keys that do not exist. Check that the $guitool value is defined to prevent a noisy "Use of uninitialized variable $guitool in length" warning. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* git-difftool: use git-mergetool--lib for "--tool-help"John Keeping2013-01-251-48/+7
| | | | | | | | | | | | | | The "--tool-help" option to git-difftool currently displays incorrect output since it uses the names of the files in "$GIT_EXEC_PATH/mergetools/" rather than the list of command names in git-mergetool--lib. Fix this by simply delegating the "--tool-help" argument to the show_tool_help function in git-mergetool--lib. Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: silence warningRoss Lagerwall2012-08-211-1/+1
| | | | | | | | | | | | Silence a warning given when running git difftool --dir-diff and there are no changes. This is because command_oneline returns undef when the command has no output, not ''. Signed-off-by: Ross Lagerwall <rosslagerwall@gmail.com> Acked-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Disable --symlinks on cygwinDavid Aguilar2012-07-261-1/+2
| | | | | | | Symlinks are not ubiquitous on Windows so make --no-symlinks the default. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Handle compare() returning -1David Aguilar2012-07-261-31/+68
| | | | | | | | | | | | | | | Keep the temporary directory around when compare() cannot read its input files, which is indicated by -1. Defer tempdir creation to allow an early exit in setup_dir_diff(). Wrap the rest of the entry points in an exit_cleanup() function to handle removing temporary files and error reporting. Print the temporary files' location so that the user can recover them. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Wrap long lines for readabilityDavid Aguilar2012-07-261-14/+32
| | | | | | | Keep everything within 80 columns. Wrap the user-facing messages too. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Check all return codes from compare()David Aguilar2012-07-251-1/+10
| | | | | | | | | | | Handle the case where compare() is unable to read its inputs. Emit a warning so that the user knows that something went wrong. We may later want to restructure the code so that we can inhibit tempdir cleanup when this condition is reached. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Handle finding mergetools/ in a path with spacesDavid Aguilar2012-07-251-6/+21
| | | | | | | | | | | | | Use the original File::Find implementation from bf73fc2 (difftool: print list of valid tools with '--tool-help', 2012-03-29) so that we properly handle mergetools/ being located in a path containing spaces. One small difference is that we avoid using a global variable by passing a reference to the list of tools. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Use symlinks when diffing against the worktreeDavid Aguilar2012-07-231-10/+23
| | | | | | | | | | | | | Teach difftool's --dir-diff mode to use symlinks to represent files from the working copy, and make it the default behavior for the non-Windows platforms. Using symlinks is simpler and safer since we do not need to worry about copying files back into the worktree. The old behavior is still available as --no-symlinks. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Call the temp directory "git-difftool"David Aguilar2012-07-221-1/+1
| | | | | | | | The "diffall" name was left over from when this functionality was part of the "git-diffall" script in contrib/. Make the naming consistent. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Move option values into a hashDavid Aguilar2012-07-221-24/+31
| | | | | | | | | Shorten the "my" declaration for all of the option-specific variables by wrapping all of them in a hash. This also gives us a place to specify default values, should we need them. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Eliminate global variablesDavid Aguilar2012-07-221-53/+75
| | | | | | | | | | Organize the script so that it has a single main() function which calls out to dir_diff() and file_diff() functions. This eliminates "dir-diff"-specific variables that do not need to be calculated when performing a regular file-diff. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Simplify print_tool_help()David Aguilar2012-07-221-20/+5
| | | | | | | | Eliminate a global variable and File::Find usage by building upon basename() and glob() instead. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: only copy back files modified during directory diffTim Henigan2012-07-191-2/+5
| | | | | | | | | | | | | | | When 'difftool --dir-diff' is used to compare working tree files, it always copies files from the tmp dir back to the working tree when the diff tool is closed, even if the files were not modified by the diff tool. This causes the file timestamp to change. Files should only be copied from the tmp dir back to the working copy if they were actually modified. Signed-off-by: Tim Henigan <tim.henigan@gmail.com> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: print list of valid tools with '--tool-help'Tim Henigan2012-04-231-2/+53
| | | | | | | | | | | | | | | | | Since bc7a96a (mergetool--lib: Refactor tools into separate files, 2011-08-18), it is possible to add a new diff tool by creating a simple script in the '$(git --exec-path)/mergetools' directory. Updating the difftool help text is still a manual process, and the documentation can easily go out of sync. This commit teaches difftool the '--tool-help' option, which: - Reads the list of valid tools from 'mergetools/*' - Determines which of them are actually installed - Determines which are capable of diffing (i.e. not just a merge tool) - Prints the resulting list for the user Signed-off-by: Tim Henigan <tim.henigan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: teach difftool to handle directory diffsTim Henigan2012-04-231-21/+245
| | | | | | | | | | | | | When 'difftool' is called to compare a range of commits that modify more than one file, it opens a separate instance of the diff tool for each file that changed. The new '--dir-diff' option copies all the modified files to a temporary location and runs a directory diff on them in a single instance of the diff tool. Signed-off-by: Tim Henigan <tim.henigan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: eliminate setup_environment functionTim Henigan2012-03-231-7/+2
| | | | | | | | Removing this function shortens the code and makes it easier to read. Now all environment variables are set as part of procedural operation. Signed-off-by: Tim Henigan <tim.henigan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: stop appending '.exe' to gitTim Henigan2012-03-231-10/+1
| | | | | | | | The system call to Git works the same whether or not ".exe" is appended to "git". The extra code is not necessary. Signed-off-by: Tim Henigan <tim.henigan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: remove explicit change of PATHTim Henigan2012-03-231-4/+0
| | | | | | | | Adding the script directory to PATH is not needed. The script is located at '$(git --exec-path)', which is already on the PATH. Signed-off-by: Tim Henigan <tim.henigan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: exit(0) when usage is printedTim Henigan2012-03-231-4/+5
| | | | | | | | | | | | | Prior to this commit, the script exited with an error whenever the usage string was printed, regardless of the reason it was done. In cases where usage was printed due to a user request (e.g. '-h' option), the script should exit without error (exit 0). This commit adds an argument to the usage function that allows the exit code to be specified when the function is called. Signed-off-by: Tim Henigan <tim.henigan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: add '--no-gui' optionTim Henigan2012-03-231-3/+4
| | | | | | | | | | | | | | This commit teaches difftool to handle the '--no-gui' option. This option negates the existing '--gui' option. The last setting given on the command line wins. This allows a user to configure "[alias] mdt = difftool --gui", but still have the ability to override the setting without error: $ git mdt --no-gui Signed-off-by: Tim Henigan <tim.henigan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: parse options using Getopt::LongTim Henigan2012-03-231-65/+46
| | | | | | | | Replace custom option/argument parser with standard Getopt::Long module. This shortens the code and makes it easier to understand. Signed-off-by: Tim Henigan <tim.henigan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* use -h for synopsis and --help for manpage consistentlycb/do-not-pretend-to-hijack-long-helpClemens Buchacher2011-10-051-1/+1
| | | | | | | | | | | | A few scripted Porcelain implementations pretend as if the routine to show their own help messages are triggered upon "git cmd --help", but a command line parser of "git" will hijack such a request and shows the manpage for the cmd subcommand. Leaving the code to handle such input is simply misleading. Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Fix failure on CygwinRamsay Jones2010-12-141-4/+8
| | | | | | | | | | | | | | | | | In particular, test 14 'difftool last flag wins' in t7800 fails. This is caused by git-difftool.perl passing both GIT_DIFFTOOL_NO_PROMPT (='true') and GIT_DIFFTOOL_PROMPT (='true') to the difftool helper script. Despite the appropriate key being deleted from the ENV hash, it seems that once a key has been set in the hash, it gets passed along to the system() call. (ie deleting the key does not do the equivalent of unsetenv()). In order to fix the problem, we keep track of the required prompt state while processing the arguments, and then set the relevant ENV hash key only once at the end. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* perl: bump the required Perl version to 5.8 from 5.6.[21]Ævar Arnfjörð Bjarmason2010-09-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Formalize our dependency on perl 5.8, bumped from 5.6.[12]. We already used the three-arg form of open() which was introduced in 5.6.1, but t/t9700/test.pl explicitly depended on 5.6.2. However git-add--interactive.pl has been failing on the 5.6 line since it was introduced in v1.5.0-rc0~12^2~2 back in 2006 due to this open syntax: sub run_cmd_pipe { my $fh = undef; open($fh, '-|', @_) or die; return <$fh>; } Which when executed dies on "Can't use an undefined value as filehandle reference". Several of our tests also fail on 5.6 (even more when compiled with NO_PERL_MAKEMAKER=1): t2016-checkout-patch.sh t3904-stash-patch.sh t3701-add-interactive.sh t7105-reset-patch.sh t7501-commit.sh t9700-perl-git.sh Our code is bitrotting on 5.6 with no-one interested in fixing it, and pinning us to such an ancient release of Perl is keeping us from using useful features introduced in the 5.8 release. The 5.6 series is now over 10 years old, and the 5.6.2 maintenance release almost 7. 5.8 on the other hand is more than 8 years old. All the modern Unix-like operating systems have now upgraded to it or a later version, and 5.8 packages are available for old IRIX, AIX Solaris and Tru64 systems. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Acked-by: Tor Arntsen <tor@spacetec.no> Acked-by: Randal L. Schwartz <merlyn@stonehenge.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Fix '--gui' when diff.guitool is unconfiguredDavid Aguilar2010-03-281-5/+7
| | | | | | | | | | | | | When diff.guitool is unconfigured and "--gui" is specified git-difftool dies with the following error message: config diff.guitool: command returned error: 1 Catch the error so that the "--gui" flag is a no-op when diff.guitool is unconfigured. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Add '-x' and as an alias for '--extcmd'David Aguilar2010-01-151-7/+14
| | | | | | | | | | | | This adds '-x' as a shorthand for the '--extcmd' option. Arguments to '--extcmd' can be specified separately, which was not originally possible. This also fixes the brief help text so that it mentions both '-x' and '--extcmd'. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: Allow specifying unconfigured commands with --extcmdDavid Aguilar2010-01-091-0/+4
| | | | | | | | | | | git-difftool requires difftool.<tool>.cmd configuration even when tools use the standard "$diffcmd $from $to" form. This teaches git-difftool to run these tools in lieu of configuration by allowing the command to be specified on the command line. Reference: http://article.gmane.org/gmane.comp.version-control.git/133377 Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* git-difftool: Add '--gui' for selecting a GUI toolDavid Aguilar2010-01-031-1/+12
| | | | | | | | | | | | | | Users might prefer to have git-difftool use a different tool when run from a Git GUI. This teaches git-difftool to honor 'diff.guitool' when the '--gui' option is specified. This allows users to configure their preferred command-line diff tool in 'diff.tool' and a GUI diff tool in 'diff.guitool'. Reference: http://article.gmane.org/gmane.comp.version-control.git/133386 Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Explain seemingly pointless use of system in difftoolAlex Riesen2009-04-241-0/+6
| | | | | | | Portability reasons. Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Wait for git diff to finish in git difftoolAlex Riesen2009-04-221-1/+2
| | | | | | | | | | In ActivetState Perl, exec does not wait for the started program. This breaks difftool tests and may cause unexpected behaviour: git difftool has returned, but the rest of code (diff and possibly the interactive program are still running in the background. Acked-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: add support for a difftool.prompt config variableDavid Aguilar2009-04-071-3/+12
| | | | | | | | | difftool now supports difftool.prompt so that users do not have to pass --no-prompt or hit enter each time a diff tool is launched. The --prompt flag overrides the configuration variable. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* difftool: move 'git-difftool' out of contribDavid Aguilar2009-04-071-0/+76
This prepares 'git-difftool' and its documentation for mainstream use. 'git-difftool-helper' became 'git-difftool--helper' since users should not use it directly. 'git-difftool' was added to the list of commands as an ancillaryinterrogator. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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