Merge branch 'nd/diff-with-path-params'

A few options of "git diff" did not work well when the command was
run from a subdirectory.

* nd/diff-with-path-params:
diff: make -O and --output work in subdirectory
diff-no-index: do not take a redundant prefix argument

diff --git a/builtin/am.c b/builtin/am.c
index b55f903f058047bc59773dd691892c621351f9ba..259dc1cd117ec18d37d4199873c11bbf70ad6dfb 100644 (file)
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -1642,7 +1642,7 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa
 
                init_revisions(&rev_info, NULL);
                rev_info.diffopt.output_format = DIFF_FORMAT_NAME_STATUS;
-               diff_opt_parse(&rev_info.diffopt, &diff_filter_str, 1);
+               diff_opt_parse(&rev_info.diffopt, &diff_filter_str, 1, rev_info.prefix);
                add_pending_sha1(&rev_info, "HEAD", our_tree, 0);
                diff_setup_done(&rev_info.diffopt);
                run_diff_index(&rev_info, 1);

diff --git a/builtin/diff.c b/builtin/diff.c
index ed0acca91fb870d3f773779b34f4e24c401945e5..52c98a9217c60a60f0012dbdafbb193e78ec8a33 100644 (file)
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -341,7 +341,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
        }
        if (no_index)
                /* If this is a no-index diff, just run it and exit there. */
-               diff_no_index(&rev, argc, argv, prefix);
+               diff_no_index(&rev, argc, argv);
 
        /* Otherwise, we are doing the usual "git" diff */
        rev.diffopt.skip_stat_unmatch = !!diff_auto_refresh_index;

diff --git a/diff-no-index.c b/diff-no-index.c
index 8e0fd270b5be4d9ab8616ab57202862dd2fc6eda..03daadb25af835a695c7d0baf466b0e1f82b58c4 100644 (file)
--- a/diff-no-index.c
+++ b/diff-no-index.c
@@ -237,12 +237,12 @@ static void fixup_paths(const char **path, struct strbuf *replacement)
 }
 
 void diff_no_index(struct rev_info *revs,
-                  int argc, const char **argv,
-                  const char *prefix)
+                  int argc, const char **argv)
 {
        int i, prefixlen;
        const char *paths[2];
        struct strbuf replacement = STRBUF_INIT;
+       const char *prefix = revs->prefix;
 
        diff_setup(&revs->diffopt);
        for (i = 1; i < argc - 2; ) {
@@ -252,7 +252,8 @@ void diff_no_index(struct rev_info *revs,
                else if (!strcmp(argv[i], "--"))
                        i++;
                else {
-                       j = diff_opt_parse(&revs->diffopt, argv + i, argc - i);
+                       j = diff_opt_parse(&revs->diffopt, argv + i, argc - i,
+                                          revs->prefix);
                        if (j <= 0)
                                die("invalid diff option/value: %s", argv[i]);
                        i += j;

diff --git a/diff.c b/diff.c
index 80eb0c2156a0f3727f8a9598f3e83233224539b0..2136b6970b3a9751a3ec420bac61e9baa08df9b0 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -3693,12 +3693,16 @@ static int parse_ws_error_highlight(struct diff_options *opt, const char *arg)
        return 1;
 }
 
-int diff_opt_parse(struct diff_options *options, const char **av, int ac)
+int diff_opt_parse(struct diff_options *options,
+                  const char **av, int ac, const char *prefix)
 {
        const char *arg = av[0];
        const char *optarg;
        int argcount;
 
+       if (!prefix)
+               prefix = "";
+
        /* Output format options */
        if (!strcmp(arg, "-p") || !strcmp(arg, "-u") || !strcmp(arg, "--patch")
            || opt_arg(arg, 'U', "unified", &options->context))
@@ -3915,7 +3919,8 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
        else if (!strcmp(arg, "--pickaxe-regex"))
                options->pickaxe_opts |= DIFF_PICKAXE_REGEX;
        else if ((argcount = short_opt('O', av, &optarg))) {
-               options->orderfile = optarg;
+               const char *path = prefix_filename(prefix, strlen(prefix), optarg);
+               options->orderfile = xstrdup(path);
                return argcount;
        }
        else if ((argcount = parse_long_opt("diff-filter", av, &optarg))) {
@@ -3954,9 +3959,10 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
        else if (!strcmp(arg, "--no-function-context"))
                DIFF_OPT_CLR(options, FUNCCONTEXT);
        else if ((argcount = parse_long_opt("output", av, &optarg))) {
-               options->file = fopen(optarg, "w");
+               const char *path = prefix_filename(prefix, strlen(prefix), optarg);
+               options->file = fopen(path, "w");
                if (!options->file)
-                       die_errno("Could not open '%s'", optarg);
+                       die_errno("Could not open '%s'", path);
                options->close_file = 1;
                return argcount;
        } else

diff --git a/diff.h b/diff.h
index 893f4465176686c4cf4505e43fc6879762ed8121..70b2d70d64e1e47da617f51b8385870a22e92f40 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -268,7 +268,7 @@ extern int parse_long_opt(const char *opt, const char **argv,
 extern int git_diff_basic_config(const char *var, const char *value, void *cb);
 extern int git_diff_ui_config(const char *var, const char *value, void *cb);
 extern void diff_setup(struct diff_options *);
-extern int diff_opt_parse(struct diff_options *, const char **, int);
+extern int diff_opt_parse(struct diff_options *, const char **, int, const char *);
 extern void diff_setup_done(struct diff_options *);
 
 #define DIFF_DETECT_RENAME     1
@@ -345,7 +345,7 @@ extern int diff_flush_patch_id(struct diff_options *, unsigned char *);
 
 extern int diff_result_code(struct diff_options *, int);
 
-extern void diff_no_index(struct rev_info *, int, const char **, const char *);
+extern void diff_no_index(struct rev_info *, int, const char **);
 
 extern int index_differs_from(const char *def, int diff_flags);
 

diff --git a/revision.c b/revision.c
index 8df4e117ff0321d73f521cec49285dba638451e9..f24ead53d537b05d7819ce53b45b05a15ec60a96 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -2044,7 +2044,7 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
        } else if (!strcmp(arg, "--ignore-missing")) {
                revs->ignore_missing = 1;
        } else {
-               int opts = diff_opt_parse(&revs->diffopt, argv, argc);
+               int opts = diff_opt_parse(&revs->diffopt, argv, argc, revs->prefix);
                if (!opts)
                        unkv[(*unkc)++] = arg;
                return opts;

diff --git a/t/t4056-diff-order.sh b/t/t4056-diff-order.sh
index c0460bb0e59c42de179fc6cbe0f3702a3b538a8e..43dd474a12e97945d38de00f7ab99f30d73490ea 100755 (executable)
--- a/t/t4056-diff-order.sh
+++ b/t/t4056-diff-order.sh
@@ -68,6 +68,12 @@ test_expect_success POSIXPERM,SANITY 'unreadable orderfile' '
        test_must_fail git diff -Ounreadable_file --name-only HEAD^..HEAD
 '
 
+test_expect_success "orderfile using option from subdir with --output" '
+       mkdir subdir &&
+       git -C subdir diff -O../order_file_1 --output ../actual --name-only HEAD^..HEAD &&
+       test_cmp expect_1 actual
+'
+
 for i in 1 2
 do
        test_expect_success "orderfile using option ($i)" '