diff options
| -rw-r--r-- | Documentation/git-diff.txt | 4 | ||||
| -rw-r--r-- | Documentation/git-difftool.txt | 17 | ||||
| -rwxr-xr-x | git-difftool--helper.sh | 35 | ||||
| -rwxr-xr-x | git-difftool.perl | 26 | ||||
| -rwxr-xr-x | t/t7800-difftool.sh | 63 |
5 files changed, 118 insertions, 27 deletions
diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt index 0ac711230..723a64872 100644 --- a/Documentation/git-diff.txt +++ b/Documentation/git-diff.txt @@ -157,6 +157,10 @@ $ git diff -R <2> rewrites (very expensive). <2> Output diff in reverse. +SEE ALSO +-------- +linkgit:git-difftool[1]:: + Show changes using common diff tools Author ------ diff --git a/Documentation/git-difftool.txt b/Documentation/git-difftool.txt index 8e9aed67d..5c68cff90 100644 --- a/Documentation/git-difftool.txt +++ b/Documentation/git-difftool.txt @@ -7,7 +7,7 @@ git-difftool - Show changes using common diff tools SYNOPSIS -------- -'git difftool' [--tool=<tool>] [-y|--no-prompt|--prompt] [<'git diff' options>] +'git difftool' [<options>] <commit>{0,2} [--] [<path>...] DESCRIPTION ----------- @@ -58,6 +58,18 @@ is set to the name of the temporary file containing the contents of the diff post-image. `$BASE` is provided for compatibility with custom merge tool commands and has the same value as `$LOCAL`. +-x <command>:: +--extcmd=<command>:: + Specify a custom command for viewing diffs. + 'git-difftool' ignores the configured defaults and runs + `$command $LOCAL $REMOTE` when this option is specified. + +-g:: +--gui:: + When 'git-difftool' is invoked with the `-g` or `--gui` option + the default diff tool will be read from the configured + `diff.guitool` variable instead of `diff.tool`. + See linkgit:git-diff[1] for the full list of supported options. CONFIG VARIABLES @@ -68,6 +80,9 @@ difftool equivalents have not been defined. diff.tool:: The default diff tool to use. +diff.guitool:: + The default diff tool to use when `--gui` is specified. + difftool.<tool>.path:: Override the path for the given tool. This is useful in case your tool is not in the PATH. diff --git a/git-difftool--helper.sh b/git-difftool--helper.sh index 57e8e3256..e43b5d64d 100755 --- a/git-difftool--helper.sh +++ b/git-difftool--helper.sh @@ -3,9 +3,8 @@ # This script is typically launched by using the 'git difftool' # convenience command. # -# Copyright (c) 2009 David Aguilar +# Copyright (c) 2009, 2010 David Aguilar -# Load common functions from git-mergetool--lib TOOL_MODE=diff . git-mergetool--lib @@ -20,7 +19,11 @@ should_prompt () { fi } -# Sets up shell variables and runs a merge tool +# Indicates that --extcmd=... was specified +use_ext_cmd () { + test -n "$GIT_DIFFTOOL_EXTCMD" +} + launch_merge_tool () { # Merged is the filename as it appears in the work tree # Local is the contents of a/filename @@ -35,20 +38,28 @@ launch_merge_tool () { # the user with the real $MERGED name before launching $merge_tool. if should_prompt; then printf "\nViewing: '$MERGED'\n" - printf "Hit return to launch '%s': " "$merge_tool" + if use_ext_cmd; then + printf "Hit return to launch '%s': " \ + "$GIT_DIFFTOOL_EXTCMD" + else + printf "Hit return to launch '%s': " "$merge_tool" + fi read ans fi - # Run the appropriate merge tool command - run_merge_tool "$merge_tool" + if use_ext_cmd; then + eval $GIT_DIFFTOOL_EXTCMD '"$LOCAL"' '"$REMOTE"' + else + run_merge_tool "$merge_tool" + fi } -# Allow GIT_DIFF_TOOL and GIT_MERGE_TOOL to provide default values -test -n "$GIT_MERGE_TOOL" && merge_tool="$GIT_MERGE_TOOL" -test -n "$GIT_DIFF_TOOL" && merge_tool="$GIT_DIFF_TOOL" - -if test -z "$merge_tool"; then - merge_tool="$(get_merge_tool)" || exit +if ! use_ext_cmd; then + if test -n "$GIT_DIFF_TOOL"; then + merge_tool="$GIT_DIFF_TOOL" + else + merge_tool="$(get_merge_tool)" || exit + fi fi # Launch the merge tool on each path provided by 'git diff' diff --git a/git-difftool.perl b/git-difftool.perl index ba5e60a45..d975d072d 100755 --- a/git-difftool.perl +++ b/git-difftool.perl @@ -1,5 +1,5 @@ #!/usr/bin/env perl -# Copyright (c) 2009 David Aguilar +# Copyright (c) 2009, 2010 David Aguilar # # This is a wrapper around the GIT_EXTERNAL_DIFF-compatible # git-difftool--helper script. @@ -15,13 +15,17 @@ use warnings; use Cwd qw(abs_path); use File::Basename qw(dirname); +require Git; + my $DIR = abs_path(dirname($0)); sub usage { print << 'USAGE'; -usage: git difftool [--tool=<tool>] [-y|--no-prompt] ["git diff" options] +usage: git difftool [-t|--tool=<tool>] [-x|--extcmd=<cmd>] + [-y|--no-prompt] [-g|--gui] + ['git diff' options] USAGE exit 1; } @@ -63,6 +67,24 @@ sub generate_command $ENV{GIT_DIFF_TOOL} = substr($arg, 7); next; } + if ($arg eq '-x' || $arg eq '--extcmd') { + usage() if $#ARGV <= $idx; + $ENV{GIT_DIFFTOOL_EXTCMD} = $ARGV[$idx + 1]; + $skip_next = 1; + next; + } + if ($arg =~ /^--extcmd=/) { + $ENV{GIT_DIFFTOOL_EXTCMD} = substr($arg, 9); + next; + } + if ($arg eq '-g' || $arg eq '--gui') { + my $tool = Git::command_oneline('config', + 'diff.guitool'); + if (length($tool)) { + $ENV{GIT_DIFF_TOOL} = $tool; + } + next; + } if ($arg eq '-y' || $arg eq '--no-prompt') { $ENV{GIT_DIFFTOOL_NO_PROMPT} = 'true'; delete $ENV{GIT_DIFFTOOL_PROMPT}; diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh index fff6a6d0e..fad547225 100755 --- a/t/t7800-difftool.sh +++ b/t/t7800-difftool.sh @@ -1,6 +1,6 @@ #!/bin/sh # -# Copyright (c) 2009 David Aguilar +# Copyright (c) 2009, 2010 David Aguilar # test_description='git-difftool @@ -15,10 +15,14 @@ if ! test_have_prereq PERL; then test_done fi +LF=' +' + remove_config_vars() { # Unset all config variables used by git-difftool git config --unset diff.tool + git config --unset diff.guitool git config --unset difftool.test-tool.cmd git config --unset difftool.prompt git config --unset merge.tool @@ -31,11 +35,11 @@ restore_test_defaults() # Restores the test defaults used by several tests remove_config_vars unset GIT_DIFF_TOOL - unset GIT_MERGE_TOOL unset GIT_DIFFTOOL_PROMPT unset GIT_DIFFTOOL_NO_PROMPT git config diff.tool test-tool && git config difftool.test-tool.cmd 'cat $LOCAL' + git config difftool.bogus-tool.cmd false } prompt_given() @@ -71,11 +75,22 @@ test_expect_success 'custom commands' ' # Ensures that git-difftool ignores bogus --tool values test_expect_success 'difftool ignores bad --tool values' ' - diff=$(git difftool --no-prompt --tool=bogus-tool branch) + diff=$(git difftool --no-prompt --tool=bad-tool branch) test "$?" = 1 && test "$diff" = "" ' +test_expect_success 'difftool honors --gui' ' + git config merge.tool bogus-tool && + git config diff.tool bogus-tool && + git config diff.guitool test-tool && + + diff=$(git difftool --no-prompt --gui branch) && + test "$diff" = "branch" && + + restore_test_defaults +' + # Specify the diff tool using $GIT_DIFF_TOOL test_expect_success 'GIT_DIFF_TOOL variable' ' git config --unset diff.tool @@ -94,15 +109,7 @@ test_expect_success 'GIT_DIFF_TOOL overrides' ' git config diff.tool bogus-tool && git config merge.tool bogus-tool && - GIT_MERGE_TOOL=test-tool && - export GIT_MERGE_TOOL && - diff=$(git difftool --no-prompt branch) && - test "$diff" = "branch" && - unset GIT_MERGE_TOOL && - - GIT_MERGE_TOOL=bogus-tool && GIT_DIFF_TOOL=test-tool && - export GIT_MERGE_TOOL && export GIT_DIFF_TOOL && diff=$(git difftool --no-prompt branch) && @@ -210,7 +217,39 @@ test_expect_success 'difftool.<tool>.path' ' diff=$(git difftool --tool=tkdiff --no-prompt branch) && git config --unset difftool.tkdiff.path && lines=$(echo "$diff" | grep file | wc -l) && - test "$lines" -eq 1 + test "$lines" -eq 1 && + + restore_test_defaults +' + +test_expect_success 'difftool --extcmd=cat' ' + diff=$(git difftool --no-prompt --extcmd=cat branch) && + test "$diff" = branch"$LF"master +' + +test_expect_success 'difftool --extcmd cat' ' + diff=$(git difftool --no-prompt --extcmd cat branch) && + test "$diff" = branch"$LF"master +' + +test_expect_success 'difftool -x cat' ' + diff=$(git difftool --no-prompt -x cat branch) && + test "$diff" = branch"$LF"master +' + +test_expect_success 'difftool --extcmd echo arg1' ' + diff=$(git difftool --no-prompt --extcmd sh\ -c\ \"echo\ \$1\" branch) + test "$diff" = file +' + +test_expect_success 'difftool --extcmd cat arg1' ' + diff=$(git difftool --no-prompt --extcmd sh\ -c\ \"cat\ \$1\" branch) + test "$diff" = master +' + +test_expect_success 'difftool --extcmd cat arg2' ' + diff=$(git difftool --no-prompt --extcmd sh\ -c\ \"cat\ \$2\" branch) + test "$diff" = branch ' test_done |