diff options
| -rw-r--r-- | combine-diff.c | 214 | ||||
| -rw-r--r-- | diff.c | 14 | ||||
| -rwxr-xr-x | t/t4048-diff-combined-binary.sh | 212 | ||||
| -rw-r--r-- | userdiff.c | 17 | ||||
| -rw-r--r-- | userdiff.h | 2 |
5 files changed, 376 insertions, 83 deletions
diff --git a/combine-diff.c b/combine-diff.c index 655fa89d8a..be67cfcd45 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -7,6 +7,7 @@ #include "xdiff-interface.h" #include "log-tree.h" #include "refs.h" +#include "userdiff.h" static struct combine_diff_path *intersect_paths(struct combine_diff_path *curr, int n, int num_parent) { @@ -92,7 +93,9 @@ struct sline { unsigned long *p_lno; }; -static char *grab_blob(const unsigned char *sha1, unsigned int mode, unsigned long *size) +static char *grab_blob(const unsigned char *sha1, unsigned int mode, + unsigned long *size, struct userdiff_driver *textconv, + const char *path) { char *blob; enum object_type type; @@ -105,6 +108,11 @@ static char *grab_blob(const unsigned char *sha1, unsigned int mode, unsigned lo /* deleted blob */ *size = 0; return xcalloc(1, 1); + } else if (textconv) { + struct diff_filespec *df = alloc_filespec(path); + fill_filespec(df, sha1, mode); + *size = fill_textconv(textconv, df, &blob); + free_filespec(df); } else { blob = read_sha1_file(sha1, &type, size); if (type != OBJ_BLOB) @@ -204,7 +212,9 @@ static void consume_line(void *state_, char *line, unsigned long len) static void combine_diff(const unsigned char *parent, unsigned int mode, mmfile_t *result_file, struct sline *sline, unsigned int cnt, int n, - int num_parent, int result_deleted) + int num_parent, int result_deleted, + struct userdiff_driver *textconv, + const char *path) { unsigned int p_lno, lno; unsigned long nmask = (1UL << n); @@ -217,7 +227,7 @@ static void combine_diff(const unsigned char *parent, unsigned int mode, if (result_deleted) return; /* result deleted */ - parent_file.ptr = grab_blob(parent, mode, &sz); + parent_file.ptr = grab_blob(parent, mode, &sz, textconv, path); parent_file.size = sz; memset(&xpp, 0, sizeof(xpp)); xpp.flags = 0; @@ -681,6 +691,82 @@ static void dump_quoted_path(const char *head, puts(buf.buf); } +static void show_combined_header(struct combine_diff_path *elem, + int num_parent, + int dense, + struct rev_info *rev, + int mode_differs, + int show_file_header) +{ + struct diff_options *opt = &rev->diffopt; + int abbrev = DIFF_OPT_TST(opt, FULL_INDEX) ? 40 : DEFAULT_ABBREV; + const char *a_prefix = opt->a_prefix ? opt->a_prefix : "a/"; + const char *b_prefix = opt->b_prefix ? opt->b_prefix : "b/"; + int use_color = DIFF_OPT_TST(opt, COLOR_DIFF); + const char *c_meta = diff_get_color(use_color, DIFF_METAINFO); + const char *c_reset = diff_get_color(use_color, DIFF_RESET); + const char *abb; + int added = 0; + int deleted = 0; + int i; + + if (rev->loginfo && !rev->no_commit_id) + show_log(rev); + + dump_quoted_path(dense ? "diff --cc " : "diff --combined ", + "", elem->path, c_meta, c_reset); + printf("%sindex ", c_meta); + for (i = 0; i < num_parent; i++) { + abb = find_unique_abbrev(elem->parent[i].sha1, + abbrev); + printf("%s%s", i ? "," : "", abb); + } + abb = find_unique_abbrev(elem->sha1, abbrev); + printf("..%s%s\n", abb, c_reset); + + if (mode_differs) { + deleted = !elem->mode; + + /* We say it was added if nobody had it */ + added = !deleted; + for (i = 0; added && i < num_parent; i++) + if (elem->parent[i].status != + DIFF_STATUS_ADDED) + added = 0; + if (added) + printf("%snew file mode %06o", + c_meta, elem->mode); + else { + if (deleted) + printf("%sdeleted file ", c_meta); + printf("mode "); + for (i = 0; i < num_parent; i++) { + printf("%s%06o", i ? "," : "", + elem->parent[i].mode); + } + if (elem->mode) + printf("..%06o", elem->mode); + } + printf("%s\n", c_reset); + } + + if (!show_file_header) + return; + + if (added) + dump_quoted_path("--- ", "", "/dev/null", + c_meta, c_reset); + else + dump_quoted_path("--- ", a_prefix, elem->path, + c_meta, c_reset); + if (deleted) + dump_quoted_path("+++ ", "", "/dev/null", + c_meta, c_reset); + else + dump_quoted_path("+++ ", b_prefix, elem->path, + c_meta, c_reset); +} + static void show_patch_diff(struct combine_diff_path *elem, int num_parent, int dense, struct rev_info *rev) { @@ -692,17 +778,22 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent, int mode_differs = 0; int i, show_hunks; int working_tree_file = is_null_sha1(elem->sha1); - int abbrev = DIFF_OPT_TST(opt, FULL_INDEX) ? 40 : DEFAULT_ABBREV; - const char *a_prefix, *b_prefix; mmfile_t result_file; + struct userdiff_driver *userdiff; + struct userdiff_driver *textconv = NULL; + int is_binary; context = opt->context; - a_prefix = opt->a_prefix ? opt->a_prefix : "a/"; - b_prefix = opt->b_prefix ? opt->b_prefix : "b/"; + userdiff = userdiff_find_by_path(elem->path); + if (!userdiff) + userdiff = userdiff_find_by_name("default"); + if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV)) + textconv = userdiff_get_textconv(userdiff); /* Read the result of merge first */ if (!working_tree_file) - result = grab_blob(elem->sha1, elem->mode, &result_size); + result = grab_blob(elem->sha1, elem->mode, &result_size, + textconv, elem->path); else { /* Used by diff-tree to read from the working tree */ struct stat st; @@ -725,9 +816,16 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent, } else if (S_ISDIR(st.st_mode)) { unsigned char sha1[20]; if (resolve_gitlink_ref(elem->path, "HEAD", sha1) < 0) - result = grab_blob(elem->sha1, elem->mode, &result_size); + result = grab_blob(elem->sha1, elem->mode, + &result_size, NULL, NULL); else - result = grab_blob(sha1, elem->mode, &result_size); + result = grab_blob(sha1, elem->mode, + &result_size, NULL, NULL); + } else if (textconv) { + struct diff_filespec *df = alloc_filespec(elem->path); + fill_filespec(df, null_sha1, st.st_mode); + result_size = fill_textconv(textconv, df, &result); + free_filespec(df); } else if (0 <= (fd = open(elem->path, O_RDONLY))) { size_t len = xsize_t(st.st_size); ssize_t done; @@ -777,6 +875,38 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent, close(fd); } + for (i = 0; i < num_parent; i++) { + if (elem->parent[i].mode != elem->mode) { + mode_differs = 1; + break; + } + } + + if (textconv) + is_binary = 0; + else if (userdiff->binary != -1) + is_binary = userdiff->binary; + else { + is_binary = buffer_is_binary(result, result_size); + for (i = 0; !is_binary && i < num_parent; i++) { + char *buf; + unsigned long size; + buf = grab_blob(elem->parent[i].sha1, + elem->parent[i].mode, + &size, NULL, NULL); + if (buffer_is_binary(buf, size)) + is_binary = 1; + free(buf); + } + } + if (is_binary) { + show_combined_header(elem, num_parent, dense, rev, + mode_differs, 0); + printf("Binary files differ\n"); + free(result); + return; + } + for (cnt = 0, cp = result; cp < result + result_size; cp++) { if (*cp == '\n') cnt++; @@ -824,71 +954,15 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent, combine_diff(elem->parent[i].sha1, elem->parent[i].mode, &result_file, sline, - cnt, i, num_parent, result_deleted); - if (elem->parent[i].mode != elem->mode) - mode_differs = 1; + cnt, i, num_parent, result_deleted, + textconv, elem->path); } show_hunks = make_hunks(sline, cnt, num_parent, dense); if (show_hunks || mode_differs || working_tree_file) { - const char *abb; - int use_color = DIFF_OPT_TST(opt, COLOR_DIFF); - const char *c_meta = diff_get_color(use_color, DIFF_METAINFO); - const char *c_reset = diff_get_color(use_color, DIFF_RESET); - int added = 0; - int deleted = 0; - - if (rev->loginfo && !rev->no_commit_id) - show_log(rev); - dump_quoted_path(dense ? "diff --cc " : "diff --combined ", - "", elem->path, c_meta, c_reset); - printf("%sindex ", c_meta); - for (i = 0; i < num_parent; i++) { - abb = find_unique_abbrev(elem->parent[i].sha1, - abbrev); - printf("%s%s", i ? "," : "", abb); - } - abb = find_unique_abbrev(elem->sha1, abbrev); - printf("..%s%s\n", abb, c_reset); - - if (mode_differs) { - deleted = !elem->mode; - - /* We say it was added if nobody had it */ - added = !deleted; - for (i = 0; added && i < num_parent; i++) - if (elem->parent[i].status != - DIFF_STATUS_ADDED) - added = 0; - if (added) - printf("%snew file mode %06o", - c_meta, elem->mode); - else { - if (deleted) - printf("%sdeleted file ", c_meta); - printf("mode "); - for (i = 0; i < num_parent; i++) { - printf("%s%06o", i ? "," : "", - elem->parent[i].mode); - } - if (elem->mode) - printf("..%06o", elem->mode); - } - printf("%s\n", c_reset); - } - if (added) - dump_quoted_path("--- ", "", "/dev/null", - c_meta, c_reset); - else - dump_quoted_path("--- ", a_prefix, elem->path, - c_meta, c_reset); - if (deleted) - dump_quoted_path("+++ ", "", "/dev/null", - c_meta, c_reset); - else - dump_quoted_path("+++ ", b_prefix, elem->path, - c_meta, c_reset); + show_combined_header(elem, num_parent, dense, rev, + mode_differs, 1); dump_sline(sline, cnt, num_parent, DIFF_OPT_TST(opt, COLOR_DIFF), result_deleted); } @@ -1984,19 +1984,7 @@ struct userdiff_driver *get_textconv(struct diff_filespec *one) return NULL; diff_filespec_load_driver(one); - if (!one->driver->textconv) - return NULL; - - if (one->driver->textconv_want_cache && !one->driver->textconv_cache) { - struct notes_cache *c = xmalloc(sizeof(*c)); - struct strbuf name = STRBUF_INIT; - - strbuf_addf(&name, "textconv/%s", one->driver->name); - notes_cache_init(c, name.buf, one->driver->textconv); - one->driver->textconv_cache = c; - } - - return one->driver; + return userdiff_get_textconv(one->driver); } static void builtin_diff(const char *name_a, diff --git a/t/t4048-diff-combined-binary.sh b/t/t4048-diff-combined-binary.sh new file mode 100755 index 0000000000..87a8949500 --- /dev/null +++ b/t/t4048-diff-combined-binary.sh @@ -0,0 +1,212 @@ +#!/bin/sh + +test_description='combined and merge diff handle binary files and textconv' +. ./test-lib.sh + +test_expect_success 'setup binary merge conflict' ' + echo oneQ1 | q_to_nul >binary && + git add binary && + git commit -m one && + echo twoQ2 | q_to_nul >binary && + git commit -a -m two && + git checkout -b branch-binary HEAD^ && + echo threeQ3 | q_to_nul >binary && + git commit -a -m three && + test_must_fail git merge master && + echo resolvedQhooray | q_to_nul >binary && + git commit -a -m resolved +' + +cat >expect <<'EOF' +resolved + +diff --git a/binary b/binary +index 7ea6ded..9563691 100644 +Binary files a/binary and b/binary differ +resolved + +diff --git a/binary b/binary +index 6197570..9563691 100644 +Binary files a/binary and b/binary differ +EOF +test_expect_success 'diff -m indicates binary-ness' ' + git show --format=%s -m >actual && + test_cmp expect actual +' + +cat >expect <<'EOF' +resolved + +diff --combined binary +index 7ea6ded,6197570..9563691 +Binary files differ +EOF +test_expect_success 'diff -c indicates binary-ness' ' + git show --format=%s -c >actual && + test_cmp expect actual +' + +cat >expect <<'EOF' +resolved + +diff --cc binary +index 7ea6ded,6197570..9563691 +Binary files differ +EOF +test_expect_success 'diff --cc indicates binary-ness' ' + git show --format=%s --cc >actual && + test_cmp expect actual +' + +test_expect_success 'setup non-binary with binary attribute' ' + git checkout master && + test_commit one text && + test_commit two text && + git checkout -b branch-text HEAD^ && + test_commit three text && + test_must_fail git merge master && + test_commit resolved text && + echo text -diff >.gitattributes +' + +cat >expect <<'EOF' +resolved + +diff --git a/text b/text +index 2bdf67a..2ab19ae 100644 +Binary files a/text and b/text differ +resolved + +diff --git a/text b/text +index f719efd..2ab19ae 100644 +Binary files a/text and b/text differ +EOF +test_expect_success 'diff -m respects binary attribute' ' + git show --format=%s -m >actual && + test_cmp expect actual +' + +cat >expect <<'EOF' +resolved + +diff --combined text +index 2bdf67a,f719efd..2ab19ae +Binary files differ +EOF +test_expect_success 'diff -c respects binary attribute' ' + git show --format=%s -c >actual && + test_cmp expect actual +' + +cat >expect <<'EOF' +resolved + +diff --cc text +index 2bdf67a,f719efd..2ab19ae +Binary files differ +EOF +test_expect_success 'diff --cc respects binary attribute' ' + git show --format=%s --cc >actual && + test_cmp expect actual +' + +test_expect_success 'setup textconv attribute' ' + echo "text diff=upcase" >.gitattributes && + git config diff.upcase.textconv "tr a-z A-Z <" +' + +cat >expect <<'EOF' +resolved + +diff --git a/text b/text +index 2bdf67a..2ab19ae 100644 +--- a/text ++++ b/text +@@ -1 +1 @@ +-THREE ++RESOLVED +resolved + +diff --git a/text b/text +index f719efd..2ab19ae 100644 +--- a/text ++++ b/text +@@ -1 +1 @@ +-TWO ++RESOLVED +EOF +test_expect_success 'diff -m respects textconv attribute' ' + git show --format=%s -m >actual && + test_cmp expect actual +' + +cat >expect <<'EOF' +resolved + +diff --combined text +index 2bdf67a,f719efd..2ab19ae +--- a/text ++++ b/text +@@@ -1,1 -1,1 +1,1 @@@ +- THREE + -TWO +++RESOLVED +EOF +test_expect_success 'diff -c respects textconv attribute' ' + git show --format=%s -c >actual && + test_cmp expect actual +' + +cat >expect <<'EOF' +resolved + +diff --cc text +index 2bdf67a,f719efd..2ab19ae +--- a/text ++++ b/text +@@@ -1,1 -1,1 +1,1 @@@ +- THREE + -TWO +++RESOLVED +EOF +test_expect_success 'diff --cc respects textconv attribute' ' + git show --format=%s --cc >actual && + test_cmp expect actual +' + +cat >expect <<'EOF' +diff --combined text +index 2bdf67a,f719efd..2ab19ae +--- a/text ++++ b/text +@@@ -1,1 -1,1 +1,1 @@@ +- three + -two +++resolved +EOF +test_expect_success 'diff-tree plumbing does not respect textconv' ' + git diff-tree HEAD -c -p >full && + tail -n +2 full >actual && + test_cmp expect actual +' + +cat >expect <<'EOF' +diff --cc text +index 2bdf67a,f719efd..0000000 +--- a/text ++++ b/text +@@@ -1,1 -1,1 +1,5 @@@ +++<<<<<<< HEAD + +THREE +++======= ++ TWO +++>>>>>>> MASTER +EOF +test_expect_success 'diff --cc respects textconv on worktree file' ' + git reset --hard HEAD^ && + test_must_fail git merge master && + git diff >actual && + test_cmp expect actual +' + +test_done diff --git a/userdiff.c b/userdiff.c index e55310cd02..01d3a8b81e 100644 --- a/userdiff.c +++ b/userdiff.c @@ -281,3 +281,20 @@ struct userdiff_driver *userdiff_find_by_path(const char *path) return NULL; return userdiff_find_by_name(check.value); } + +struct userdiff_driver *userdiff_get_textconv(struct userdiff_driver *driver) +{ + if (!driver->textconv) + return NULL; + + if (driver->textconv_want_cache && !driver->textconv_cache) { + struct notes_cache *c = xmalloc(sizeof(*c)); + struct strbuf name = STRBUF_INIT; + + strbuf_addf(&name, "textconv/%s", driver->name); + notes_cache_init(c, name.buf, driver->textconv); + driver->textconv_cache = c; + } + + return driver; +} diff --git a/userdiff.h b/userdiff.h index 942d594950..4a7e78ffbc 100644 --- a/userdiff.h +++ b/userdiff.h @@ -23,4 +23,6 @@ int userdiff_config(const char *k, const char *v); struct userdiff_driver *userdiff_find_by_name(const char *name); struct userdiff_driver *userdiff_find_by_path(const char *path); +struct userdiff_driver *userdiff_get_textconv(struct userdiff_driver *driver); + #endif /* USERDIFF */ |