We are about to teach the log_tree machinery to reuse the diffopt.file
setting to output to a file stream different from stdout.
This means that builtin am can no longer ask the diff machinery to
close the file when actually calling the log_tree machinery (which
wants to flush the very same file stream that would then already be
closed).
To stave off similar problems in the future, report it as a bug if
log_tree_commit() is called with a non-zero diffopt.close_file.
Signed-off-by: Johannes Schindelin <johannes.schinde...@gmx.de>
---
builtin/am.c | 6 ++++--
log-tree.c | 3 +++
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/builtin/am.c b/builtin/am.c
index 0e28a62..47d78aa 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -1437,6 +1437,7 @@ static int write_commit_patch(const struct am_state
*state, struct commit *commi
{
struct rev_info rev_info;
FILE *fp;
+ int res;
fp = fopen(am_path(state, "patch"), "w");
if (!fp)
@@ -1453,10 +1454,11 @@ static int write_commit_patch(const struct am_state
*state, struct commit *commi
DIFF_OPT_SET(&rev_info.diffopt, FULL_INDEX);
rev_info.diffopt.use_color = 0;
rev_info.diffopt.file = fp;
- rev_info.diffopt.close_file = 1;
add_pending_object(&rev_info, &commit->object, "");
diff_setup_done(&rev_info.diffopt);
- return log_tree_commit(&rev_info, commit);
+ res = log_tree_commit(&rev_info, commit);
+ fclose(fp);
+ return res;
}
/**
diff --git a/log-tree.c b/log-tree.c
index 78a5381..dc0180d 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -864,6 +864,9 @@ int log_tree_commit(struct rev_info *opt, struct commit
*commit)
struct log_info log;
int shown;
+ if (opt->diffopt.close_file)
+ die("BUG: close_file is incompatible with log_tree_commit()");
+
log.commit = commit;
log.parent = NULL;
opt->loginfo = &log;
--
2.9.0.118.g0e1a633
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