diff options
| -rw-r--r-- | revision.c | 40 | ||||
| -rw-r--r-- | revision.h | 1 |
2 files changed, 38 insertions, 3 deletions
diff --git a/revision.c b/revision.c index ffbed3fbf..979241eb0 100644 --- a/revision.c +++ b/revision.c @@ -9,6 +9,7 @@ #include "grep.h" #include "reflog-walk.h" #include "patch-ids.h" +#include "decorate.h" volatile show_early_output_fn_t show_early_output; @@ -1310,6 +1311,11 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch revs->no_walk = 0; continue; } + if (!strcmp(arg, "--children")) { + revs->children.name = "children"; + revs->limited = 1; + continue; + } opts = diff_opt_parse(&revs->diffopt, argv+i, argc-i); if (opts > 0) { @@ -1395,10 +1401,31 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch if (revs->reverse && revs->reflog_info) die("cannot combine --reverse with --walk-reflogs"); - + if (revs->parents && revs->children.name) + die("cannot combine --parents and --children"); return left; } +static void add_child(struct rev_info *revs, struct commit *parent, struct commit *child) +{ + struct commit_list *l = xcalloc(1, sizeof(*l)); + + l->item = child; + l->next = add_decoration(&revs->children, &parent->object, l); +} + +static void set_children(struct rev_info *revs) +{ + struct commit_list *l; + for (l = revs->commits; l; l = l->next) { + struct commit *commit = l->item; + struct commit_list *p; + + for (p = commit->parents; p; p = p->next) + add_child(revs, p->item, commit); + } +} + int prepare_revision_walk(struct rev_info *revs) { int nr = revs->pending.nr; @@ -1427,6 +1454,8 @@ int prepare_revision_walk(struct rev_info *revs) return -1; if (revs->topo_order) sort_in_topological_order(&revs->commits, revs->lifo); + if (revs->children.name) + set_children(revs); return 0; } @@ -1504,6 +1533,11 @@ static int commit_match(struct commit *commit, struct rev_info *opt) commit->buffer, strlen(commit->buffer)); } +static inline int want_ancestry(struct rev_info *revs) +{ + return (revs->parents || revs->children.name); +} + enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit) { if (commit->object.flags & SHOWN) @@ -1524,13 +1558,13 @@ enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit) /* Commit without changes? */ if (commit->object.flags & TREESAME) { /* drop merges unless we want parenthood */ - if (!revs->parents) + if (!want_ancestry(revs)) return commit_ignore; /* non-merge - always ignore it */ if (!commit->parents || !commit->parents->next) return commit_ignore; } - if (revs->parents && rewrite_parents(revs, commit) < 0) + if (want_ancestry(revs) && rewrite_parents(revs, commit) < 0) return commit_error; } return commit_show; diff --git a/revision.h b/revision.h index c8b3b948e..966116cd5 100644 --- a/revision.h +++ b/revision.h @@ -98,6 +98,7 @@ struct rev_info { struct diff_options pruning; struct reflog_walk_info *reflog_info; + struct decoration children; }; #define REV_TREE_SAME 0 |