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| author | Denton Liu <liu.denton@gmail.com> | 2019-04-29 02:21:20 -0400 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2019-05-13 23:11:59 +0900 |
| commit | 6c22d715e7b4067a6865ff3fbceab991d0042c12 (patch) | |
| tree | 9d8f81d3a69a7b3f7924ff35e91f6af0da7f4b7d | |
| parent | 7f978d7d10a87c4a56ea3101b936cddb25bbe2c6 (diff) | |
| download | git-6c22d715e7b4067a6865ff3fbceab991d0042c12.tar.xz | |
difftool: fallback on merge.guitool
In git-difftool.txt, it says
'git difftool' falls back to 'git mergetool' config variables when the
difftool equivalents have not been defined.
However, when `diff.guitool` is missing, it doesn't fallback to
anything. Make git-difftool fallback to `merge.guitool` when `diff.guitool` is
missing.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | Documentation/git-difftool.txt | 4 | ||||
| -rw-r--r-- | builtin/difftool.c | 10 | ||||
| -rwxr-xr-x | t/t7800-difftool.sh | 16 |
3 files changed, 21 insertions, 9 deletions
diff --git a/Documentation/git-difftool.txt b/Documentation/git-difftool.txt index 96c26e6aa8..484c485fd0 100644 --- a/Documentation/git-difftool.txt +++ b/Documentation/git-difftool.txt @@ -90,7 +90,9 @@ instead. `--no-symlinks` is the default on Windows. 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`. The `--no-gui` - option can be used to override this setting. + option can be used to override this setting. If `diff.guitool` + is not set, we will fallback in the order of `merge.guitool`, + `diff.tool`, `merge.tool` until a tool is found. --[no-]trust-exit-code:: 'git-difftool' invokes a diff tool individually on each file. diff --git a/builtin/difftool.c b/builtin/difftool.c index 481aa64af5..2205de1214 100644 --- a/builtin/difftool.c +++ b/builtin/difftool.c @@ -23,7 +23,6 @@ #include "object-store.h" #include "dir.h" -static char *diff_gui_tool; static int trust_exit_code; static const char *const builtin_difftool_usage[] = { @@ -33,11 +32,6 @@ static const char *const builtin_difftool_usage[] = { static int difftool_config(const char *var, const char *value, void *cb) { - if (!strcmp(var, "diff.guitool")) { - diff_gui_tool = xstrdup(value); - return 0; - } - if (!strcmp(var, "difftool.trustexitcode")) { trust_exit_code = git_config_bool(var, value); return 0; @@ -733,8 +727,8 @@ int cmd_difftool(int argc, const char **argv, const char *prefix) if (use_gui_tool + !!difftool_cmd + !!extcmd > 1) die(_("--gui, --tool and --extcmd are mutually exclusive")); - if (use_gui_tool && diff_gui_tool && *diff_gui_tool) - setenv("GIT_DIFF_TOOL", diff_gui_tool, 1); + if (use_gui_tool) + setenv("GIT_MERGETOOL_GUI", "true", 1); else if (difftool_cmd) { if (*difftool_cmd) setenv("GIT_DIFF_TOOL", difftool_cmd, 1); diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh index 833e175bf9..48b74c0434 100755 --- a/t/t7800-difftool.sh +++ b/t/t7800-difftool.sh @@ -279,11 +279,27 @@ test_expect_success 'difftool + mergetool config variables' ' echo branch >expect && git difftool --no-prompt branch >actual && test_cmp expect actual && + git difftool --gui --no-prompt branch >actual && + test_cmp expect actual && # set merge.tool to something bogus, diff.tool to test-tool test_config merge.tool bogus-tool && test_config diff.tool test-tool && git difftool --no-prompt branch >actual && + test_cmp expect actual && + git difftool --gui --no-prompt branch >actual && + test_cmp expect actual && + + # set merge.tool, diff.tool to something bogus, merge.guitool to test-tool + test_config diff.tool bogus-tool && + test_config merge.guitool test-tool && + git difftool --gui --no-prompt branch >actual && + test_cmp expect actual && + + # set merge.tool, diff.tool, merge.guitool to something bogus, diff.guitool to test-tool + test_config merge.guitool bogus-tool && + test_config diff.guitool test-tool && + git difftool --gui --no-prompt branch >actual && test_cmp expect actual ' |