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Merge pull request #2381 from ecoffey/example_log_author_filter

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Add support for --author flag in example log implementation
This commit is contained in:
Vicent Marti 2014-05-29 14:51:25 +02:00
commit 19d77ce109
2 changed files with 47 additions and 8 deletions
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6
PROJECTS.md
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@ -39,12 +39,6 @@ These are good small projects to get started with libgit2.
the data is available, you would just need to add the code into the
`print_commit()` routine (along with a way of passing the option
into that function).
* For `examples/log.c`, implement any one of `--author=<...>`,
`--committer=<...>`, or `--grep=<...>` but just use simple string
match with `strstr()` instead of full regular expression
matching. (I.e. I'm suggesting implementing this as if
`--fixed-strings` was always turned on, because it will be a simpler
project.)
* As an extension to the matching idea for `examples/log.c`, add the
`-i` option to use `strcasestr()` for matches.
* For `examples/log.c`, implement the `--first-parent` option now that

49
examples/log.c
View File

@ -54,8 +54,9 @@ struct log_options {
int min_parents, max_parents;
git_time_t before;
git_time_t after;
char *author;
char *committer;
const char *author;
const char *committer;
const char *grep;
};
/** utility functions that parse options and help with log output */
@ -65,6 +66,9 @@ static void print_time(const git_time *intime, const char *prefix);
static void print_commit(git_commit *commit);
static int match_with_parent(git_commit *commit, int i, git_diff_options *);
/** utility functions for filtering */
static int signature_matches(const git_signature *sig, const char *filter);
static int log_message_matches(const git_commit *commit, const char *filter);
int main(int argc, char *argv[])
{
@ -128,6 +132,15 @@ int main(int argc, char *argv[])
continue;
}
if (!signature_matches(git_commit_author(commit), opt.author))
continue;
if (!signature_matches(git_commit_committer(commit), opt.committer))
continue;
if (!log_message_matches(commit, opt.grep))
continue;
if (count++ < opt.skip)
continue;
if (opt.limit != -1 && printed++ >= opt.limit) {
@ -172,6 +185,32 @@ int main(int argc, char *argv[])
return 0;
}
/** Determine if the given git_signature does not contain the filter text. */
static int signature_matches(const git_signature *sig, const char *filter) {
if (filter == NULL)
return 1;
if (sig != NULL &&
(strstr(sig->name, filter) != NULL ||
strstr(sig->email, filter) != NULL))
return 1;
return 0;
}
static int log_message_matches(const git_commit *commit, const char *filter) {
const char *message = NULL;
if (filter == NULL)
return 1;
if ((message = git_commit_message(commit)) != NULL &&
strstr(message, filter) != NULL)
return 1;
return 0;
}
/** Push object (for hide or show) onto revwalker. */
static void push_rev(struct log_state *s, git_object *obj, int hide)
{
@ -401,6 +440,12 @@ static int parse_options(
set_sorting(s, GIT_SORT_TOPOLOGICAL);
else if (!strcmp(a, "--reverse"))
set_sorting(s, GIT_SORT_REVERSE);
else if (match_str_arg(&opt->author, &args, "--author"))
/** Found valid --author */;
else if (match_str_arg(&opt->committer, &args, "--committer"))
/** Found valid --committer */;
else if (match_str_arg(&opt->grep, &args, "--grep"))
/** Found valid --grep */;
else if (match_str_arg(&s->repodir, &args, "--git-dir"))
/** Found git-dir. */;
else if (match_int_arg(&opt->skip, &args, "--skip", 0))