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commit-tree: teach -m/-F options to read logs from elsewhere

Just like "git commit" does.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
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commit 96b8d93a539f3a9f43f0fc38214db8753cac3c2e 1 parent 79a9312
@gitster gitster authored
Showing with 53 additions and 6 deletions.
  1. +13 −3 Documentation/git-commit-tree.txt
  2. +40 −3 builtin/commit-tree.c
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16 Documentation/git-commit-tree.txt
@@ -9,7 +9,8 @@ git-commit-tree - Create a new commit object
SYNOPSIS
--------
[verse]
-'git commit-tree' <tree> [(-p <parent commit>)...] < changelog
+'git commit-tree' <tree> [(-p <parent>)...] < changelog
+'git commit-tree' [(-p <parent>)...] [(-m <message>)...] [(-F <file>)...] <tree>
DESCRIPTION
-----------
@@ -17,7 +18,8 @@ This is usually not what an end user wants to run directly. See
linkgit:git-commit[1] instead.
Creates a new commit object based on the provided tree object and
-emits the new commit object id on stdout.
+emits the new commit object id on stdout. The log message is read
+from the standard input, unless `-m` or `-F` options are given.
A commit object may have any number of parents. With exactly one
parent, it is an ordinary commit. Having more than one parent makes
@@ -39,9 +41,17 @@ OPTIONS
<tree>::
An existing tree object
--p <parent commit>::
+-p <parent>::
Each '-p' indicates the id of a parent commit object.
+-m <message>::
+ A paragraph in the commig log message. This can be given more than
+ once and each <message> becomes its own paragraph.
+
+-F <file>::
+ Read the commit log message from the given file. Use `-` to read
+ from the standard input.
+
Commit Information
------------------
View
43 builtin/commit-tree.c
@@ -9,7 +9,7 @@
#include "builtin.h"
#include "utf8.h"
-static const char commit_tree_usage[] = "git commit-tree <sha1> [(-p <sha1>)...] < changelog";
+static const char commit_tree_usage[] = "git commit-tree [(-p <sha1>)...] [-m <message>] [-F <file>] <sha1> <changelog";
static void new_parent(struct commit *parent, struct commit_list **parents_p)
{
@@ -51,6 +51,41 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
continue;
}
+ if (!strcmp(arg, "-m")) {
+ if (argc <= ++i)
+ usage(commit_tree_usage);
+ if (buffer.len)
+ strbuf_addch(&buffer, '\n');
+ strbuf_addstr(&buffer, argv[i]);
+ strbuf_complete_line(&buffer);
+ continue;
+ }
+
+ if (!strcmp(arg, "-F")) {
+ int fd;
+
+ if (argc <= ++i)
+ usage(commit_tree_usage);
+ if (buffer.len)
+ strbuf_addch(&buffer, '\n');
+ if (!strcmp(argv[i], "-"))
+ fd = 0;
+ else {
+ fd = open(argv[i], O_RDONLY);
+ if (fd < 0)
+ die_errno("git commit-tree: failed to open '%s'",
+ argv[i]);
+ }
+ if (strbuf_read(&buffer, fd, 0) < 0)
+ die_errno("git commit-tree: failed to read '%s'",
+ argv[i]);
+ if (fd && close(fd))
+ die_errno("git commit-tree: failed to close '%s'",
+ argv[i]);
+ strbuf_complete_line(&buffer);
+ continue;
+ }
+
if (get_sha1(arg, tree_sha1))
die("Not a valid object name %s", arg);
if (got_tree)
@@ -58,8 +93,10 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
got_tree = 1;
}
- if (strbuf_read(&buffer, 0, 0) < 0)
- die_errno("git commit-tree: failed to read");
+ if (!buffer.len) {
+ if (strbuf_read(&buffer, 0, 0) < 0)
+ die_errno("git commit-tree: failed to read");
+ }
if (commit_tree(buffer.buf, tree_sha1, parents, commit_sha1, NULL)) {
strbuf_release(&buffer);
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