Display 'theirs' branch name when possible in merge.
Displaying the SHA1 of 'their' branch (the branch being merged into the current branch) is not nearly as friendly as just displaying the name of that branch, especially if that branch is already local to this repository. git-merge now sets the environment variable 'GITHEAD_%(sha1)=%(name)' for each argument it gets passed, making the actual input name that resolved to the commit '%(sha1)' easily available to the invoked merge strategy. git-merge-recursive makes use of these environment variables when they are available by using '%(name)' whenever it outputs the commit identification rather than '%(sha1)'. This is most obvious in the conflict hunks created by xdl_merge: $ git mege sideb~1 <<<<<<< HEAD:INSTALL Good! ======= Oops. >>>>>>> sideb~1:INSTALL [jc: adjusted a test script and a minor constness glitch.] Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
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d9606e85cd
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@ -221,6 +221,8 @@ do
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remotehead=$(git-rev-parse --verify "$remote"^0 2>/dev/null) ||
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remotehead=$(git-rev-parse --verify "$remote"^0 2>/dev/null) ||
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die "$remote - not something we can merge"
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die "$remote - not something we can merge"
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remoteheads="${remoteheads}$remotehead "
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remoteheads="${remoteheads}$remotehead "
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eval GITHEAD_$remotehead='"$remote"'
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export GITHEAD_$remotehead
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done
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done
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set x $remoteheads ; shift
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set x $remoteheads ; shift
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@ -1263,6 +1263,18 @@ static struct commit *get_ref(const char *ref)
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return (struct commit *)object;
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return (struct commit *)object;
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}
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}
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static const char *better_branch_name(const char *branch)
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{
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static char githead_env[8 + 40 + 1];
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char *name;
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if (strlen(branch) != 40)
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return branch;
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sprintf(githead_env, "GITHEAD_%s", branch);
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name = getenv(githead_env);
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return name ? name : branch;
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}
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int main(int argc, char *argv[])
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int main(int argc, char *argv[])
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{
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{
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static const char *bases[2];
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static const char *bases[2];
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@ -1293,11 +1305,14 @@ int main(int argc, char *argv[])
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branch1 = argv[++i];
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branch1 = argv[++i];
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branch2 = argv[++i];
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branch2 = argv[++i];
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printf("Merging %s with %s\n", branch1, branch2);
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h1 = get_ref(branch1);
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h1 = get_ref(branch1);
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h2 = get_ref(branch2);
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h2 = get_ref(branch2);
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branch1 = better_branch_name(branch1);
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branch2 = better_branch_name(branch2);
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printf("Merging %s with %s\n", branch1, branch2);
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if (bases_count == 1) {
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if (bases_count == 1) {
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struct commit *ancestor = get_ref(bases[0]);
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struct commit *ancestor = get_ref(bases[0]);
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clean = merge(h1, h2, branch1, branch2, 0, ancestor, &result);
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clean = merge(h1, h2, branch1, branch2, 0, ancestor, &result);
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@ -59,18 +59,18 @@ GIT_AUTHOR_DATE="2006-12-12 23:00:08" git commit -m F
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test_expect_failure "combined merge conflicts" "git merge -m final G"
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test_expect_failure "combined merge conflicts" "git merge -m final G"
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cat > expect << EOF
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cat > expect << EOF
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<<<<<<< HEAD/a1
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<<<<<<< HEAD:a1
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F
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F
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=======
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=======
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G
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G
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>>>>>>> 26f86b677eb03d4d956dbe108b29cb77061c1e73/a1
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>>>>>>> G:a1
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EOF
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EOF
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test_expect_success "result contains a conflict" "diff -u expect a1"
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test_expect_success "result contains a conflict" "diff -u expect a1"
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git ls-files --stage > out
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git ls-files --stage > out
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cat > expect << EOF
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cat > expect << EOF
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100644 f16f906ab60483c100d1241dfc39868de9ec9fcb 1 a1
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100644 da056ce14a2241509897fa68bb2b3b6e6194ef9e 1 a1
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100644 cf84443e49e1b366fac938711ddf4be2d4d1d9e9 2 a1
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100644 cf84443e49e1b366fac938711ddf4be2d4d1d9e9 2 a1
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100644 fd7923529855d0b274795ae3349c5e0438333979 3 a1
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100644 fd7923529855d0b274795ae3349c5e0438333979 3 a1
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EOF
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EOF
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