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authorJunio C Hamano <gitster@pobox.com>2023-02-14 14:15:50 -0800
committerJunio C Hamano <gitster@pobox.com>2023-02-14 14:15:51 -0800
commitf8382a639667aedb08afa95339d494d5ed6b370f (patch)
tree98fa6a7b6db99d9d4ccdf13f32e05cd7362a9438
parent7cbfd0e572560040df3381efb91e3b52b524e128 (diff)
parentf034bb1cad862a678030cdf0ae833636f9d7dbca (diff)
downloadgit-f8382a639667aedb08afa95339d494d5ed6b370f.tar.gz
Merge branch 'jk/ext-diff-with-relative' into maint-2.39
"git diff --relative" did not mix well with "git diff --ext-diff", which has been corrected. * jk/ext-diff-with-relative: diff: drop "name" parameter from prepare_temp_file() diff: clean up external-diff argv setup diff: use filespec path to set up tempfiles for ext-diff
-rw-r--r--diff.c30
-rwxr-xr-xt/t4045-diff-relative.sh29
2 files changed, 42 insertions, 17 deletions
diff --git a/diff.c b/diff.c
index 1054a4b732..3117fce39b 100644
--- a/diff.c
+++ b/diff.c
@@ -4213,7 +4213,6 @@ static void prep_temp_blob(struct index_state *istate,
}
static struct diff_tempfile *prepare_temp_file(struct repository *r,
- const char *name,
struct diff_filespec *one)
{
struct diff_tempfile *temp = claim_diff_tempfile();
@@ -4231,18 +4230,18 @@ static struct diff_tempfile *prepare_temp_file(struct repository *r,
if (!S_ISGITLINK(one->mode) &&
(!one->oid_valid ||
- reuse_worktree_file(r->index, name, &one->oid, 1))) {
+ reuse_worktree_file(r->index, one->path, &one->oid, 1))) {
struct stat st;
- if (lstat(name, &st) < 0) {
+ if (lstat(one->path, &st) < 0) {
if (errno == ENOENT)
goto not_a_valid_file;
- die_errno("stat(%s)", name);
+ die_errno("stat(%s)", one->path);
}
if (S_ISLNK(st.st_mode)) {
struct strbuf sb = STRBUF_INIT;
- if (strbuf_readlink(&sb, name, st.st_size) < 0)
- die_errno("readlink(%s)", name);
- prep_temp_blob(r->index, name, temp, sb.buf, sb.len,
+ if (strbuf_readlink(&sb, one->path, st.st_size) < 0)
+ die_errno("readlink(%s)", one->path);
+ prep_temp_blob(r->index, one->path, temp, sb.buf, sb.len,
(one->oid_valid ?
&one->oid : null_oid()),
(one->oid_valid ?
@@ -4251,7 +4250,7 @@ static struct diff_tempfile *prepare_temp_file(struct repository *r,
}
else {
/* we can borrow from the file in the work tree */
- temp->name = name;
+ temp->name = one->path;
if (!one->oid_valid)
oid_to_hex_r(temp->hex, null_oid());
else
@@ -4269,7 +4268,7 @@ static struct diff_tempfile *prepare_temp_file(struct repository *r,
else {
if (diff_populate_filespec(r, one, NULL))
die("cannot read data blob for %s", one->path);
- prep_temp_blob(r->index, name, temp,
+ prep_temp_blob(r->index, one->path, temp,
one->data, one->size,
&one->oid, one->mode);
}
@@ -4278,10 +4277,9 @@ static struct diff_tempfile *prepare_temp_file(struct repository *r,
static void add_external_diff_name(struct repository *r,
struct strvec *argv,
- const char *name,
struct diff_filespec *df)
{
- struct diff_tempfile *temp = prepare_temp_file(r, name, df);
+ struct diff_tempfile *temp = prepare_temp_file(r, df);
strvec_push(argv, temp->name);
strvec_push(argv, temp->hex);
strvec_push(argv, temp->mode);
@@ -4308,11 +4306,9 @@ static void run_external_diff(const char *pgm,
strvec_push(&cmd.args, name);
if (one && two) {
- add_external_diff_name(o->repo, &cmd.args, name, one);
- if (!other)
- add_external_diff_name(o->repo, &cmd.args, name, two);
- else {
- add_external_diff_name(o->repo, &cmd.args, other, two);
+ add_external_diff_name(o->repo, &cmd.args, one);
+ add_external_diff_name(o->repo, &cmd.args, two);
+ if (other) {
strvec_push(&cmd.args, other);
strvec_push(&cmd.args, xfrm_msg);
}
@@ -7037,7 +7033,7 @@ static char *run_textconv(struct repository *r,
struct strbuf buf = STRBUF_INIT;
int err = 0;
- temp = prepare_temp_file(r, spec->path, spec);
+ temp = prepare_temp_file(r, spec);
strvec_push(&child.args, pgm);
strvec_push(&child.args, temp->name);
diff --git a/t/t4045-diff-relative.sh b/t/t4045-diff-relative.sh
index fab351b48a..5e1bbb57e7 100755
--- a/t/t4045-diff-relative.sh
+++ b/t/t4045-diff-relative.sh
@@ -162,6 +162,35 @@ check_diff_relative_option subdir file2 true --no-relative --relative
check_diff_relative_option . file2 false --no-relative --relative=subdir
check_diff_relative_option . file2 true --no-relative --relative=subdir
+test_expect_success 'external diff with --relative' '
+ test_when_finished "git reset --hard" &&
+ echo changed >file1 &&
+ echo changed >subdir/file2 &&
+
+ write_script mydiff <<-\EOF &&
+ # hacky pretend diff; the goal here is just to make sure we got
+ # passed sensible input that we _could_ diff, without relying on
+ # the specific output of a system diff tool.
+ echo "diff a/$1 b/$1" &&
+ echo "--- a/$1" &&
+ echo "+++ b/$1" &&
+ echo "@@ -1 +0,0 @@" &&
+ sed "s/^/-/" "$2" &&
+ sed "s/^/+/" "$5"
+ EOF
+
+ cat >expect <<-\EOF &&
+ diff a/file2 b/file2
+ --- a/file2
+ +++ b/file2
+ @@ -1 +0,0 @@
+ -other content
+ +changed
+ EOF
+ GIT_EXTERNAL_DIFF=./mydiff git diff --relative=subdir >actual &&
+ test_cmp expect actual
+'
+
test_expect_success 'setup diff --relative unmerged' '
test_commit zero file0 &&
test_commit base subdir/file0 &&