[PATCH v3 1/4] Refactoring: Split up diff_tree_stdin
From: Karl Hasselström <hidden>
Date: 2016-06-15 22:45:07
Subsystem:
the rest · Maintainer:
Linus Torvalds
Into a first half that determines what operation to do, and a second half that does it. Currently the only operation is diffing one or more commits, but a later patch will add diffing of trees, at which point this refactoring will pay off. Signed-off-by: Karl Hasselström <redacted> --- builtin-diff-tree.c | 31 +++++++++++++++++++------------ 1 files changed, 19 insertions(+), 12 deletions(-)
diff --git a/builtin-diff-tree.c b/builtin-diff-tree.c
index 415cb16..ebbd631 100644
--- a/builtin-diff-tree.c
+++ b/builtin-diff-tree.c@@ -14,20 +14,10 @@ static int diff_tree_commit_sha1(const unsigned char *sha1) return log_tree_commit(&log_tree_opt, commit); } -static int diff_tree_stdin(char *line) +/* Diff one or more commits. */ +static int stdin_diff_commit(struct commit *commit, char *line, int len) { - int len = strlen(line); unsigned char sha1[20]; - struct commit *commit; - - if (!len || line[len-1] != '\n') - return -1; - line[len-1] = 0; - if (get_sha1_hex(line, sha1)) - return -1; - commit = lookup_commit(sha1); - if (!commit || parse_commit(commit)) - return -1; if (isspace(line[40]) && !get_sha1_hex(line+41, sha1)) { /* Graft the fake parents locally to the commit */ int pos = 41;
@@ -52,6 +42,23 @@ static int diff_tree_stdin(char *line) return log_tree_commit(&log_tree_opt, commit); } +static int diff_tree_stdin(char *line) +{ + int len = strlen(line); + unsigned char sha1[20]; + struct commit *commit; + + if (!len || line[len-1] != '\n') + return -1; + line[len-1] = 0; + if (get_sha1_hex(line, sha1)) + return -1; + commit = lookup_commit(sha1); + if (!commit || parse_commit(commit)) + return -1; + return stdin_diff_commit(commit, line, len); +} + static const char diff_tree_usage[] = "git diff-tree [--stdin] [-m] [-c] [--cc] [-s] [-v] [--pretty] [-t] [-r] [--root] " "[<common diff options>] <tree-ish> [<tree-ish>] [<path>...]\n"