зеркало из https://github.com/microsoft/git.git
Merge branch 'sp/run-command'
* sp/run-command: Use run_command within send-pack Use run_command within receive-pack to invoke index-pack Use run_command within merge-index Use run_command for proxy connections Use RUN_GIT_CMD to run push backends Correct new compiler warnings in builtin-revert Replace fork_with_pipe in bundle with run_command Teach run-command to redirect stdout to /dev/null Teach run-command about stdout redirection
This commit is contained in:
Junio C Hamano
Коммит
3635a18770
129
builtin-bundle.c
129
builtin-bundle.c
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@ -4,7 +4,7 @@
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#include "diff.h"
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#include "revision.h"
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#include "list-objects.h"
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#include "exec_cmd.h"
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#include "run-command.h"
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/*
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* Basic handler for bundle files to connect repositories via sneakernet.
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@ -99,67 +99,6 @@ static int read_header(const char *path, struct bundle_header *header) {
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return fd;
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}
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/* if in && *in >= 0, take that as input file descriptor instead */
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static int fork_with_pipe(const char **argv, int *in, int *out)
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{
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int needs_in, needs_out;
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int fdin[2], fdout[2], pid;
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needs_in = in && *in < 0;
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if (needs_in) {
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if (pipe(fdin) < 0)
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return error("could not setup pipe");
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*in = fdin[1];
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}
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needs_out = out && *out < 0;
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if (needs_out) {
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if (pipe(fdout) < 0)
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return error("could not setup pipe");
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*out = fdout[0];
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}
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if ((pid = fork()) < 0) {
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if (needs_in) {
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close(fdin[0]);
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close(fdin[1]);
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}
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if (needs_out) {
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close(fdout[0]);
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close(fdout[1]);
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}
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return error("could not fork");
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}
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if (!pid) {
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if (needs_in) {
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dup2(fdin[0], 0);
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close(fdin[0]);
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close(fdin[1]);
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} else if (in) {
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dup2(*in, 0);
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close(*in);
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}
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if (needs_out) {
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dup2(fdout[1], 1);
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close(fdout[0]);
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close(fdout[1]);
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} else if (out) {
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dup2(*out, 1);
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close(*out);
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}
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exit(execv_git_cmd(argv));
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}
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if (needs_in)
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close(fdin[0]);
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else if (in)
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close(*in);
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if (needs_out)
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close(fdout[1]);
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else if (out)
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close(*out);
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return pid;
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}
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static int list_refs(struct ref_list *r, int argc, const char **argv)
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{
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int i;
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@ -263,9 +202,10 @@ static int create_bundle(struct bundle_header *header, const char *path,
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int bundle_fd = -1;
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const char **argv_boundary = xmalloc((argc + 4) * sizeof(const char *));
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const char **argv_pack = xmalloc(5 * sizeof(const char *));
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int pid, in, out, i, status, ref_count = 0;
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int i, ref_count = 0;
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char buffer[1024];
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struct rev_info revs;
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struct child_process rls;
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bundle_fd = (!strcmp(path, "-") ? 1 :
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open(path, O_CREAT | O_EXCL | O_WRONLY, 0666));
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@ -285,11 +225,13 @@ static int create_bundle(struct bundle_header *header, const char *path,
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argv_boundary[1] = "--boundary";
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argv_boundary[2] = "--pretty=oneline";
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argv_boundary[argc + 2] = NULL;
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out = -1;
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pid = fork_with_pipe(argv_boundary, NULL, &out);
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if (pid < 0)
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memset(&rls, 0, sizeof(rls));
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rls.argv = argv_boundary;
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rls.out = -1;
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rls.git_cmd = 1;
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if (start_command(&rls))
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return -1;
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while ((i = read_string(out, buffer, sizeof(buffer))) > 0) {
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while ((i = read_string(rls.out, buffer, sizeof(buffer))) > 0) {
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unsigned char sha1[20];
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if (buffer[0] == '-') {
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write_or_die(bundle_fd, buffer, i);
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@ -303,11 +245,8 @@ static int create_bundle(struct bundle_header *header, const char *path,
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object->flags |= SHOWN;
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}
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}
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while ((i = waitpid(pid, &status, 0)) < 0)
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if (errno != EINTR)
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return error("rev-list died");
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if (!WIFEXITED(status) || WEXITSTATUS(status))
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return error("rev-list died %d", WEXITSTATUS(status));
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if (finish_command(&rls))
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return error("rev-list died");
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/* write references */
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argc = setup_revisions(argc, argv, &revs, NULL);
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@ -352,26 +291,23 @@ static int create_bundle(struct bundle_header *header, const char *path,
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argv_pack[2] = "--stdout";
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argv_pack[3] = "--thin";
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argv_pack[4] = NULL;
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in = -1;
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out = bundle_fd;
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pid = fork_with_pipe(argv_pack, &in, &out);
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if (pid < 0)
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memset(&rls, 0, sizeof(rls));
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rls.argv = argv_pack;
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rls.in = -1;
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rls.out = bundle_fd;
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rls.git_cmd = 1;
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if (start_command(&rls))
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return error("Could not spawn pack-objects");
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for (i = 0; i < revs.pending.nr; i++) {
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struct object *object = revs.pending.objects[i].item;
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if (object->flags & UNINTERESTING)
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write(in, "^", 1);
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write(in, sha1_to_hex(object->sha1), 40);
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write(in, "\n", 1);
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write(rls.in, "^", 1);
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write(rls.in, sha1_to_hex(object->sha1), 40);
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write(rls.in, "\n", 1);
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}
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close(in);
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while (waitpid(pid, &status, 0) < 0)
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if (errno != EINTR)
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return -1;
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if (!WIFEXITED(status) || WEXITSTATUS(status))
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if (finish_command(&rls))
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return error ("pack-objects died");
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return status;
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return 0;
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}
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static int unbundle(struct bundle_header *header, int bundle_fd,
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@ -379,22 +315,17 @@ static int unbundle(struct bundle_header *header, int bundle_fd,
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{
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const char *argv_index_pack[] = {"index-pack",
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"--fix-thin", "--stdin", NULL};
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int pid, status, dev_null;
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struct child_process ip;
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if (verify_bundle(header, 0))
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return -1;
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dev_null = open("/dev/null", O_WRONLY);
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if (dev_null < 0)
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return error("Could not open /dev/null");
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pid = fork_with_pipe(argv_index_pack, &bundle_fd, &dev_null);
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if (pid < 0)
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return error("Could not spawn index-pack");
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while (waitpid(pid, &status, 0) < 0)
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if (errno != EINTR)
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return error("index-pack died");
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if (!WIFEXITED(status) || WEXITSTATUS(status))
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return error("index-pack exited with status %d",
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WEXITSTATUS(status));
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memset(&ip, 0, sizeof(ip));
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ip.argv = argv_index_pack;
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ip.in = bundle_fd;
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ip.no_stdout = 1;
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ip.git_cmd = 1;
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if (run_command(&ip))
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return error("index-pack died");
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return list_heads(header, argc, argv);
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}
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@ -323,10 +323,10 @@ static int do_push(const char *repo)
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int dest_refspec_nr = refspec_nr;
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const char **dest_refspec = refspec;
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const char *dest = uri[i];
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const char *sender = "git-send-pack";
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const char *sender = "send-pack";
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if (!prefixcmp(dest, "http://") ||
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!prefixcmp(dest, "https://"))
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sender = "git-http-push";
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sender = "http-push";
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else if (thin)
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argv[dest_argc++] = "--thin";
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argv[0] = sender;
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@ -336,7 +336,7 @@ static int do_push(const char *repo)
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argv[dest_argc] = NULL;
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if (verbose)
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fprintf(stderr, "Pushing to %s\n", dest);
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err = run_command_v_opt(argv, 0);
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err = run_command_v_opt(argv, RUN_GIT_CMD);
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if (!err)
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continue;
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switch (err) {
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@ -235,8 +235,8 @@ static int revert_or_cherry_pick(int argc, const char **argv)
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unsigned char head[20];
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struct commit *base, *next;
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int i;
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char *oneline, *encoding, *reencoded_message = NULL;
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const char *message;
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char *oneline, *reencoded_message = NULL;
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const char *message, *encoding;
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git_config(git_default_config);
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me = action == REVERT ? "revert" : "cherry-pick";
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2
cache.h
2
cache.h
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@ -451,7 +451,7 @@ extern int check_repository_format_version(const char *var, const char *value);
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extern char git_default_email[MAX_GITNAME];
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extern char git_default_name[MAX_GITNAME];
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extern char *git_commit_encoding;
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extern const char *git_commit_encoding;
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extern const char *git_log_output_encoding;
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extern int copy_fd(int ifd, int ofd);
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36
connect.c
36
connect.c
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@ -3,6 +3,7 @@
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#include "pkt-line.h"
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#include "quote.h"
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#include "refs.h"
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#include "run-command.h"
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static char *server_capabilities;
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@ -598,8 +599,8 @@ static void git_proxy_connect(int fd[2], char *host)
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{
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const char *port = STR(DEFAULT_GIT_PORT);
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char *colon, *end;
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int pipefd[2][2];
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pid_t pid;
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const char *argv[4];
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struct child_process proxy;
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if (host[0] == '[') {
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end = strchr(host + 1, ']');
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@ -618,25 +619,18 @@ static void git_proxy_connect(int fd[2], char *host)
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port = colon + 1;
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}
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if (pipe(pipefd[0]) < 0 || pipe(pipefd[1]) < 0)
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die("unable to create pipe pair for communication");
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pid = fork();
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if (!pid) {
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dup2(pipefd[1][0], 0);
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dup2(pipefd[0][1], 1);
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close(pipefd[0][0]);
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close(pipefd[0][1]);
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close(pipefd[1][0]);
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close(pipefd[1][1]);
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execlp(git_proxy_command, git_proxy_command, host, port, NULL);
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die("exec failed");
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}
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if (pid < 0)
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die("fork failed");
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fd[0] = pipefd[0][0];
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fd[1] = pipefd[1][1];
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close(pipefd[0][1]);
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close(pipefd[1][0]);
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argv[0] = git_proxy_command;
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argv[1] = host;
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argv[2] = port;
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argv[3] = NULL;
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memset(&proxy, 0, sizeof(proxy));
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proxy.argv = argv;
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proxy.in = -1;
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proxy.out = -1;
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if (start_command(&proxy))
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die("cannot start proxy %s", argv[0]);
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fd[0] = proxy.out; /* read from proxy stdout */
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fd[1] = proxy.in; /* write to proxy stdin */
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}
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#define MAX_CMD_LEN 1024
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|
|
|
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|
|
@ -20,7 +20,7 @@ int is_bare_repository_cfg = -1; /* unspecified */
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int log_all_ref_updates = -1; /* unspecified */
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int warn_ambiguous_refs = 1;
|
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int repository_format_version;
|
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char *git_commit_encoding;
|
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const char *git_commit_encoding;
|
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const char *git_log_output_encoding;
|
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int shared_repository = PERM_UMASK;
|
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const char *apply_default_whitespace;
|
||||
|
|
|
|||
|
|
@ -1,4 +1,5 @@
|
|||
#include "cache.h"
|
||||
#include "run-command.h"
|
||||
|
||||
static const char *pgm;
|
||||
static const char *arguments[8];
|
||||
|
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@ -7,24 +8,10 @@ static int err;
|
|||
|
||||
static void run_program(void)
|
||||
{
|
||||
pid_t pid = fork();
|
||||
int status;
|
||||
|
||||
if (pid < 0)
|
||||
die("unable to fork");
|
||||
if (!pid) {
|
||||
execlp(pgm, arguments[0],
|
||||
arguments[1],
|
||||
arguments[2],
|
||||
arguments[3],
|
||||
arguments[4],
|
||||
arguments[5],
|
||||
arguments[6],
|
||||
arguments[7],
|
||||
NULL);
|
||||
die("unable to execute '%s'", pgm);
|
||||
}
|
||||
if (waitpid(pid, &status, 0) < 0 || !WIFEXITED(status) || WEXITSTATUS(status)) {
|
||||
struct child_process child;
|
||||
memset(&child, 0, sizeof(child));
|
||||
child.argv = arguments;
|
||||
if (run_command(&child)) {
|
||||
if (one_shot) {
|
||||
err++;
|
||||
} else {
|
||||
|
|
|
|||
|
|
@ -382,10 +382,10 @@ static const char *unpack(void)
|
|||
}
|
||||
} else {
|
||||
const char *keeper[6];
|
||||
int fd[2], s, len, status;
|
||||
pid_t pid;
|
||||
int s, len, status;
|
||||
char keep_arg[256];
|
||||
char packname[46];
|
||||
struct child_process ip;
|
||||
|
||||
s = sprintf(keep_arg, "--keep=receive-pack %i on ", getpid());
|
||||
if (gethostname(keep_arg + s, sizeof(keep_arg) - s))
|
||||
|
|
@ -397,20 +397,12 @@ static const char *unpack(void)
|
|||
keeper[3] = hdr_arg;
|
||||
keeper[4] = keep_arg;
|
||||
keeper[5] = NULL;
|
||||
|
||||
if (pipe(fd) < 0)
|
||||
return "index-pack pipe failed";
|
||||
pid = fork();
|
||||
if (pid < 0)
|
||||
memset(&ip, 0, sizeof(ip));
|
||||
ip.argv = keeper;
|
||||
ip.out = -1;
|
||||
ip.git_cmd = 1;
|
||||
if (start_command(&ip))
|
||||
return "index-pack fork failed";
|
||||
if (!pid) {
|
||||
dup2(fd[1], 1);
|
||||
close(fd[1]);
|
||||
close(fd[0]);
|
||||
execv_git_cmd(keeper);
|
||||
die("execv of index-pack failed");
|
||||
}
|
||||
close(fd[1]);
|
||||
|
||||
/*
|
||||
* The first thing we expects from index-pack's output
|
||||
|
|
@ -420,9 +412,8 @@ static const char *unpack(void)
|
|||
* later on. If we don't get that then tough luck with it.
|
||||
*/
|
||||
for (len = 0;
|
||||
len < 46 && (s = xread(fd[0], packname+len, 46-len)) > 0;
|
||||
len < 46 && (s = xread(ip.out, packname+len, 46-len)) > 0;
|
||||
len += s);
|
||||
close(fd[0]);
|
||||
if (len == 46 && packname[45] == '\n' &&
|
||||
memcmp(packname, "keep\t", 5) == 0) {
|
||||
char path[PATH_MAX];
|
||||
|
|
@ -432,14 +423,8 @@ static const char *unpack(void)
|
|||
pack_lockfile = xstrdup(path);
|
||||
}
|
||||
|
||||
/* Then wrap our index-pack process. */
|
||||
while (waitpid(pid, &status, 0) < 0)
|
||||
if (errno != EINTR)
|
||||
return "waitpid failed";
|
||||
if (WIFEXITED(status)) {
|
||||
int code = WEXITSTATUS(status);
|
||||
if (code)
|
||||
return "index-pack exited with error code";
|
||||
status = finish_command(&ip);
|
||||
if (!status) {
|
||||
reprepare_packed_git();
|
||||
return NULL;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -8,11 +8,19 @@ static inline void close_pair(int fd[2])
|
|||
close(fd[1]);
|
||||
}
|
||||
|
||||
static inline void dup_devnull(int to)
|
||||
{
|
||||
int fd = open("/dev/null", O_RDWR);
|
||||
dup2(fd, to);
|
||||
close(fd);
|
||||
}
|
||||
|
||||
int start_command(struct child_process *cmd)
|
||||
{
|
||||
int need_in = !cmd->no_stdin && cmd->in < 0;
|
||||
int fdin[2];
|
||||
int need_in, need_out;
|
||||
int fdin[2], fdout[2];
|
||||
|
||||
need_in = !cmd->no_stdin && cmd->in < 0;
|
||||
if (need_in) {
|
||||
if (pipe(fdin) < 0)
|
||||
return -ERR_RUN_COMMAND_PIPE;
|
||||
|
|
@ -20,19 +28,32 @@ int start_command(struct child_process *cmd)
|
|||
cmd->close_in = 1;
|
||||
}
|
||||
|
||||
need_out = !cmd->no_stdout
|
||||
&& !cmd->stdout_to_stderr
|
||||
&& cmd->out < 0;
|
||||
if (need_out) {
|
||||
if (pipe(fdout) < 0) {
|
||||
if (need_in)
|
||||
close_pair(fdin);
|
||||
return -ERR_RUN_COMMAND_PIPE;
|
||||
}
|
||||
cmd->out = fdout[0];
|
||||
cmd->close_out = 1;
|
||||
}
|
||||
|
||||
cmd->pid = fork();
|
||||
if (cmd->pid < 0) {
|
||||
if (need_in)
|
||||
close_pair(fdin);
|
||||
if (need_out)
|
||||
close_pair(fdout);
|
||||
return -ERR_RUN_COMMAND_FORK;
|
||||
}
|
||||
|
||||
if (!cmd->pid) {
|
||||
if (cmd->no_stdin) {
|
||||
int fd = open("/dev/null", O_RDWR);
|
||||
dup2(fd, 0);
|
||||
close(fd);
|
||||
} else if (need_in) {
|
||||
if (cmd->no_stdin)
|
||||
dup_devnull(0);
|
||||
else if (need_in) {
|
||||
dup2(fdin[0], 0);
|
||||
close_pair(fdin);
|
||||
} else if (cmd->in) {
|
||||
|
|
@ -40,8 +61,18 @@ int start_command(struct child_process *cmd)
|
|||
close(cmd->in);
|
||||
}
|
||||
|
||||
if (cmd->stdout_to_stderr)
|
||||
if (cmd->no_stdout)
|
||||
dup_devnull(1);
|
||||
else if (cmd->stdout_to_stderr)
|
||||
dup2(2, 1);
|
||||
else if (need_out) {
|
||||
dup2(fdout[1], 1);
|
||||
close_pair(fdout);
|
||||
} else if (cmd->out > 1) {
|
||||
dup2(cmd->out, 1);
|
||||
close(cmd->out);
|
||||
}
|
||||
|
||||
if (cmd->git_cmd) {
|
||||
execv_git_cmd(cmd->argv);
|
||||
} else {
|
||||
|
|
@ -55,6 +86,11 @@ int start_command(struct child_process *cmd)
|
|||
else if (cmd->in)
|
||||
close(cmd->in);
|
||||
|
||||
if (need_out)
|
||||
close(fdout[1]);
|
||||
else if (cmd->out > 1)
|
||||
close(cmd->out);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -62,6 +98,8 @@ int finish_command(struct child_process *cmd)
|
|||
{
|
||||
if (cmd->close_in)
|
||||
close(cmd->in);
|
||||
if (cmd->close_out)
|
||||
close(cmd->out);
|
||||
|
||||
for (;;) {
|
||||
int status, code;
|
||||
|
|
|
|||
|
|
@ -15,8 +15,11 @@ struct child_process {
|
|||
const char **argv;
|
||||
pid_t pid;
|
||||
int in;
|
||||
int out;
|
||||
unsigned close_in:1;
|
||||
unsigned close_out:1;
|
||||
unsigned no_stdin:1;
|
||||
unsigned no_stdout:1;
|
||||
unsigned git_cmd:1; /* if this is to be git sub-command */
|
||||
unsigned stdout_to_stderr:1;
|
||||
};
|
||||
|
|
|
|||
84
send-pack.c
84
send-pack.c
|
|
@ -3,7 +3,7 @@
|
|||
#include "tag.h"
|
||||
#include "refs.h"
|
||||
#include "pkt-line.h"
|
||||
#include "exec_cmd.h"
|
||||
#include "run-command.h"
|
||||
|
||||
static const char send_pack_usage[] =
|
||||
"git-send-pack [--all] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n"
|
||||
|
|
@ -19,46 +19,35 @@ static int use_thin_pack;
|
|||
*/
|
||||
static int pack_objects(int fd, struct ref *refs)
|
||||
{
|
||||
int pipe_fd[2];
|
||||
pid_t pid;
|
||||
/*
|
||||
* The child becomes pack-objects --revs; we feed
|
||||
* the revision parameters to it via its stdin and
|
||||
* let its stdout go back to the other end.
|
||||
*/
|
||||
const char *args[] = {
|
||||
"pack-objects",
|
||||
"--all-progress",
|
||||
"--revs",
|
||||
"--stdout",
|
||||
NULL,
|
||||
NULL,
|
||||
};
|
||||
struct child_process po;
|
||||
|
||||
if (pipe(pipe_fd) < 0)
|
||||
return error("send-pack: pipe failed");
|
||||
pid = fork();
|
||||
if (pid < 0)
|
||||
return error("send-pack: unable to fork git-pack-objects");
|
||||
if (!pid) {
|
||||
/*
|
||||
* The child becomes pack-objects --revs; we feed
|
||||
* the revision parameters to it via its stdin and
|
||||
* let its stdout go back to the other end.
|
||||
*/
|
||||
static const char *args[] = {
|
||||
"pack-objects",
|
||||
"--all-progress",
|
||||
"--revs",
|
||||
"--stdout",
|
||||
NULL,
|
||||
NULL,
|
||||
};
|
||||
if (use_thin_pack)
|
||||
args[4] = "--thin";
|
||||
dup2(pipe_fd[0], 0);
|
||||
dup2(fd, 1);
|
||||
close(pipe_fd[0]);
|
||||
close(pipe_fd[1]);
|
||||
close(fd);
|
||||
execv_git_cmd(args);
|
||||
die("git-pack-objects exec failed (%s)", strerror(errno));
|
||||
}
|
||||
if (use_thin_pack)
|
||||
args[4] = "--thin";
|
||||
memset(&po, 0, sizeof(po));
|
||||
po.argv = args;
|
||||
po.in = -1;
|
||||
po.out = fd;
|
||||
po.git_cmd = 1;
|
||||
if (start_command(&po))
|
||||
die("git-pack-objects failed (%s)", strerror(errno));
|
||||
|
||||
/*
|
||||
* We feed the pack-objects we just spawned with revision
|
||||
* parameters by writing to the pipe.
|
||||
*/
|
||||
close(pipe_fd[0]);
|
||||
close(fd);
|
||||
|
||||
while (refs) {
|
||||
char buf[42];
|
||||
|
||||
|
|
@ -67,38 +56,23 @@ static int pack_objects(int fd, struct ref *refs)
|
|||
memcpy(buf + 1, sha1_to_hex(refs->old_sha1), 40);
|
||||
buf[0] = '^';
|
||||
buf[41] = '\n';
|
||||
if (!write_or_whine(pipe_fd[1], buf, 42,
|
||||
if (!write_or_whine(po.in, buf, 42,
|
||||
"send-pack: send refs"))
|
||||
break;
|
||||
}
|
||||
if (!is_null_sha1(refs->new_sha1)) {
|
||||
memcpy(buf, sha1_to_hex(refs->new_sha1), 40);
|
||||
buf[40] = '\n';
|
||||
if (!write_or_whine(pipe_fd[1], buf, 41,
|
||||
if (!write_or_whine(po.in, buf, 41,
|
||||
"send-pack: send refs"))
|
||||
break;
|
||||
}
|
||||
refs = refs->next;
|
||||
}
|
||||
close(pipe_fd[1]);
|
||||
|
||||
for (;;) {
|
||||
int status, code;
|
||||
pid_t waiting = waitpid(pid, &status, 0);
|
||||
|
||||
if (waiting < 0) {
|
||||
if (errno == EINTR)
|
||||
continue;
|
||||
return error("waitpid failed (%s)", strerror(errno));
|
||||
}
|
||||
if ((waiting != pid) || WIFSIGNALED(status) ||
|
||||
!WIFEXITED(status))
|
||||
return error("pack-objects died with strange error");
|
||||
code = WEXITSTATUS(status);
|
||||
if (code)
|
||||
return -code;
|
||||
return 0;
|
||||
}
|
||||
if (finish_command(&po))
|
||||
return error("pack-objects died with strange error");
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void unmark_and_free(struct commit_list *list, unsigned int mark)
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче