diff options
| -rw-r--r-- | combine-diff.c | 57 | ||||
| -rwxr-xr-x | t/t4038-diff-combined.sh | 111 |
2 files changed, 161 insertions, 7 deletions
diff --git a/combine-diff.c b/combine-diff.c index 35d41cd56d..6288485965 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -5,6 +5,7 @@ #include "diffcore.h" #include "quote.h" #include "xdiff-interface.h" +#include "xdiff/xmacros.h" #include "log-tree.h" #include "refs.h" #include "userdiff.h" @@ -122,7 +123,47 @@ static char *grab_blob(const unsigned char *sha1, unsigned int mode, return blob; } -static void append_lost(struct sline *sline, int n, const char *line, int len) +static int match_string_spaces(const char *line1, int len1, + const char *line2, int len2, + long flags) +{ + if (flags & XDF_WHITESPACE_FLAGS) { + for (; len1 > 0 && XDL_ISSPACE(line1[len1 - 1]); len1--); + for (; len2 > 0 && XDL_ISSPACE(line2[len2 - 1]); len2--); + } + + if (!(flags & (XDF_IGNORE_WHITESPACE | XDF_IGNORE_WHITESPACE_CHANGE))) + return (len1 == len2 && !memcmp(line1, line2, len1)); + + while (len1 > 0 && len2 > 0) { + len1--; + len2--; + if (XDL_ISSPACE(line1[len1]) || XDL_ISSPACE(line2[len2])) { + if ((flags & XDF_IGNORE_WHITESPACE_CHANGE) && + (!XDL_ISSPACE(line1[len1]) || !XDL_ISSPACE(line2[len2]))) + return 0; + + for (; len1 > 0 && XDL_ISSPACE(line1[len1]); len1--); + for (; len2 > 0 && XDL_ISSPACE(line2[len2]); len2--); + } + if (line1[len1] != line2[len2]) + return 0; + } + + if (flags & XDF_IGNORE_WHITESPACE) { + /* Consume remaining spaces */ + for (; len1 > 0 && XDL_ISSPACE(line1[len1 - 1]); len1--); + for (; len2 > 0 && XDL_ISSPACE(line2[len2 - 1]); len2--); + } + + /* We matched full line1 and line2 */ + if (!len1 && !len2) + return 1; + + return 0; +} + +static void append_lost(struct sline *sline, int n, const char *line, int len, long flags) { struct lline *lline; unsigned long this_mask = (1UL<<n); @@ -133,8 +174,8 @@ static void append_lost(struct sline *sline, int n, const char *line, int len) if (sline->lost_head) { lline = sline->next_lost; while (lline) { - if (lline->len == len && - !memcmp(lline->line, line, len)) { + if (match_string_spaces(lline->line, lline->len, + line, len, flags)) { lline->parent_map |= this_mask; sline->next_lost = lline->next; return; @@ -162,6 +203,7 @@ struct combine_diff_state { int n; struct sline *sline; struct sline *lost_bucket; + long flags; }; static void consume_line(void *state_, char *line, unsigned long len) @@ -201,7 +243,7 @@ static void consume_line(void *state_, char *line, unsigned long len) return; /* not in any hunk yet */ switch (line[0]) { case '-': - append_lost(state->lost_bucket, state->n, line+1, len-1); + append_lost(state->lost_bucket, state->n, line+1, len-1, state->flags); break; case '+': state->sline[state->lno-1].flag |= state->nmask; @@ -215,7 +257,7 @@ static void combine_diff(const unsigned char *parent, unsigned int mode, struct sline *sline, unsigned int cnt, int n, int num_parent, int result_deleted, struct userdiff_driver *textconv, - const char *path) + const char *path, long flags) { unsigned int p_lno, lno; unsigned long nmask = (1UL << n); @@ -231,9 +273,10 @@ static void combine_diff(const unsigned char *parent, unsigned int mode, parent_file.ptr = grab_blob(parent, mode, &sz, textconv, path); parent_file.size = sz; memset(&xpp, 0, sizeof(xpp)); - xpp.flags = 0; + xpp.flags = flags; memset(&xecfg, 0, sizeof(xecfg)); memset(&state, 0, sizeof(state)); + state.flags = flags; state.nmask = nmask; state.sline = sline; state.lno = 1; @@ -962,7 +1005,7 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent, elem->parent[i].mode, &result_file, sline, cnt, i, num_parent, result_deleted, - textconv, elem->path); + textconv, elem->path, opt->xdl_opts); } show_hunks = make_hunks(sline, cnt, num_parent, dense); diff --git a/t/t4038-diff-combined.sh b/t/t4038-diff-combined.sh index 614425adac..b7e16a7840 100755 --- a/t/t4038-diff-combined.sh +++ b/t/t4038-diff-combined.sh @@ -3,6 +3,7 @@ test_description='combined diff' . ./test-lib.sh +. "$TEST_DIRECTORY"/diff-lib.sh setup_helper () { one=$1 branch=$2 side=$3 && @@ -113,4 +114,114 @@ test_expect_success 'check --cc --raw with forty trees' ' grep "^::::::::::::::::::::::::::::::::::::::::[^:]" out ' +test_expect_success 'setup combined ignore spaces' ' + git checkout master && + >test && + git add test && + git commit -m initial && + + tr -d Q <<-\EOF >test && + always coalesce + eol space coalesce Q + space change coalesce + all spa ces coalesce + eol spaces Q + space change + all spa ces + EOF + git commit -m "test space change" -a && + + git checkout -b side HEAD^ && + tr -d Q <<-\EOF >test && + always coalesce + eol space coalesce + space change coalesce + all spaces coalesce + eol spaces + space change + all spaces + EOF + git commit -m "test other space changes" -a && + + test_must_fail git merge master && + tr -d Q <<-\EOF >test && + eol spaces Q + space change + all spa ces + EOF + git commit -m merged -a +' + +test_expect_success 'check combined output (no ignore space)' ' + git show >actual.tmp && + sed -e "1,/^@@@/d" < actual.tmp >actual && + tr -d Q <<-\EOF >expected && + --always coalesce + - eol space coalesce + - space change coalesce + - all spaces coalesce + - eol spaces + - space change + - all spaces + -eol space coalesce Q + -space change coalesce + -all spa ces coalesce + + eol spaces Q + + space change + + all spa ces + EOF + compare_diff_patch expected actual +' + +test_expect_success 'check combined output (ignore space at eol)' ' + git show --ignore-space-at-eol >actual.tmp && + sed -e "1,/^@@@/d" < actual.tmp >actual && + tr -d Q <<-\EOF >expected && + --always coalesce + --eol space coalesce + - space change coalesce + - all spaces coalesce + -space change coalesce + -all spa ces coalesce + eol spaces Q + - space change + - all spaces + + space change + + all spa ces + EOF + compare_diff_patch expected actual +' + +test_expect_success 'check combined output (ignore space change)' ' + git show -b >actual.tmp && + sed -e "1,/^@@@/d" < actual.tmp >actual && + tr -d Q <<-\EOF >expected && + --always coalesce + --eol space coalesce + --space change coalesce + - all spaces coalesce + -all spa ces coalesce + eol spaces Q + space change + - all spaces + + all spa ces + EOF + compare_diff_patch expected actual +' + +test_expect_success 'check combined output (ignore all spaces)' ' + git show -w >actual.tmp && + sed -e "1,/^@@@/d" < actual.tmp >actual && + tr -d Q <<-\EOF >expected && + --always coalesce + --eol space coalesce + --space change coalesce + --all spaces coalesce + eol spaces Q + space change + all spa ces + EOF + compare_diff_patch expected actual +' + test_done |