Move pg_upgrade from contrib/ to src/bin/

Reviewed-by: Michael Paquier <michael.paquier@gmail.com>

1 files changed, 0 insertions, 250 deletions

diff --git a/contrib/pg_upgrade/file.c b/contrib/pg_upgrade/file.c
deleted file mode 100644
index 5a8d17ae0f4..00000000000
--- a/contrib/pg_upgrade/file.c
+++ /dev/null
@@ -1,250 +0,0 @@
-/*
- *	file.c
- *
- *	file system operations
- *
- *	Copyright (c) 2010-2015, PostgreSQL Global Development Group
- *	contrib/pg_upgrade/file.c
- */
-
-#include "postgres_fe.h"
-
-#include "pg_upgrade.h"
-
-#include <fcntl.h>
-
-
-
-#ifndef WIN32
-static int	copy_file(const char *fromfile, const char *tofile, bool force);
-#else
-static int	win32_pghardlink(const char *src, const char *dst);
-#endif
-
-
-/*
- * copyAndUpdateFile()
- *
- *	Copies a relation file from src to dst.  If pageConverter is non-NULL, this function
- *	uses that pageConverter to do a page-by-page conversion.
- */
-const char *
-copyAndUpdateFile(pageCnvCtx *pageConverter,
-				  const char *src, const char *dst, bool force)
-{
-	if (pageConverter == NULL)
-	{
-		if (pg_copy_file(src, dst, force) == -1)
-			return getErrorText(errno);
-		else
-			return NULL;
-	}
-	else
-	{
-		/*
-		 * We have a pageConverter object - that implies that the
-		 * PageLayoutVersion differs between the two clusters so we have to
-		 * perform a page-by-page conversion.
-		 *
-		 * If the pageConverter can convert the entire file at once, invoke
-		 * that plugin function, otherwise, read each page in the relation
-		 * file and call the convertPage plugin function.
-		 */
-
-#ifdef PAGE_CONVERSION
-		if (pageConverter->convertFile)
-			return pageConverter->convertFile(pageConverter->pluginData,
-											  dst, src);
-		else
-#endif
-		{
-			int			src_fd;
-			int			dstfd;
-			char		buf[BLCKSZ];
-			ssize_t		bytesRead;
-			const char *msg = NULL;
-
-			if ((src_fd = open(src, O_RDONLY, 0)) < 0)
-				return "could not open source file";
-
-			if ((dstfd = open(dst, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR)) < 0)
-			{
-				close(src_fd);
-				return "could not create destination file";
-			}
-
-			while ((bytesRead = read(src_fd, buf, BLCKSZ)) == BLCKSZ)
-			{
-#ifdef PAGE_CONVERSION
-				if ((msg = pageConverter->convertPage(pageConverter->pluginData, buf, buf)) != NULL)
-					break;
-#endif
-				if (write(dstfd, buf, BLCKSZ) != BLCKSZ)
-				{
-					msg = "could not write new page to destination";
-					break;
-				}
-			}
-
-			close(src_fd);
-			close(dstfd);
-
-			if (msg)
-				return msg;
-			else if (bytesRead != 0)
-				return "found partial page in source file";
-			else
-				return NULL;
-		}
-	}
-}
-
-
-/*
- * linkAndUpdateFile()
- *
- * Creates a hard link between the given relation files. We use
- * this function to perform a true in-place update. If the on-disk
- * format of the new cluster is bit-for-bit compatible with the on-disk
- * format of the old cluster, we can simply link each relation
- * instead of copying the data from the old cluster to the new cluster.
- */
-const char *
-linkAndUpdateFile(pageCnvCtx *pageConverter,
-				  const char *src, const char *dst)
-{
-	if (pageConverter != NULL)
-		return "Cannot in-place update this cluster, page-by-page conversion is required";
-
-	if (pg_link_file(src, dst) == -1)
-		return getErrorText(errno);
-	else
-		return NULL;
-}
-
-
-#ifndef WIN32
-static int
-copy_file(const char *srcfile, const char *dstfile, bool force)
-{
-#define COPY_BUF_SIZE (50 * BLCKSZ)
-
-	int			src_fd;
-	int			dest_fd;
-	char	   *buffer;
-	int			ret = 0;
-	int			save_errno = 0;
-
-	if ((srcfile == NULL) || (dstfile == NULL))
-	{
-		errno = EINVAL;
-		return -1;
-	}
-
-	if ((src_fd = open(srcfile, O_RDONLY, 0)) < 0)
-		return -1;
-
-	if ((dest_fd = open(dstfile, O_RDWR | O_CREAT | (force ? 0 : O_EXCL), S_IRUSR | S_IWUSR)) < 0)
-	{
-		save_errno = errno;
-
-		if (src_fd != 0)
-			close(src_fd);
-
-		errno = save_errno;
-		return -1;
-	}
-
-	buffer = (char *) pg_malloc(COPY_BUF_SIZE);
-
-	/* perform data copying i.e read src source, write to destination */
-	while (true)
-	{
-		ssize_t		nbytes = read(src_fd, buffer, COPY_BUF_SIZE);
-
-		if (nbytes < 0)
-		{
-			save_errno = errno;
-			ret = -1;
-			break;
-		}
-
-		if (nbytes == 0)
-			break;
-
-		errno = 0;
-
-		if (write(dest_fd, buffer, nbytes) != nbytes)
-		{
-			/* if write didn't set errno, assume problem is no disk space */
-			if (errno == 0)
-				errno = ENOSPC;
-			save_errno = errno;
-			ret = -1;
-			break;
-		}
-	}
-
-	pg_free(buffer);
-
-	if (src_fd != 0)
-		close(src_fd);
-
-	if (dest_fd != 0)
-		close(dest_fd);
-
-	if (save_errno != 0)
-		errno = save_errno;
-
-	return ret;
-}
-#endif
-
-
-void
-check_hard_link(void)
-{
-	char		existing_file[MAXPGPATH];
-	char		new_link_file[MAXPGPATH];
-
-	snprintf(existing_file, sizeof(existing_file), "%s/PG_VERSION", old_cluster.pgdata);
-	snprintf(new_link_file, sizeof(new_link_file), "%s/PG_VERSION.linktest", new_cluster.pgdata);
-	unlink(new_link_file);		/* might fail */
-
-	if (pg_link_file(existing_file, new_link_file) == -1)
-	{
-		pg_fatal("Could not create hard link between old and new data directories: %s\n"
-				 "In link mode the old and new data directories must be on the same file system volume.\n",
-				 getErrorText(errno));
-	}
-	unlink(new_link_file);
-}
-
-#ifdef WIN32
-static int
-win32_pghardlink(const char *src, const char *dst)
-{
-	/*
-	 * CreateHardLinkA returns zero for failure
-	 * http://msdn.microsoft.com/en-us/library/aa363860(VS.85).aspx
-	 */
-	if (CreateHardLinkA(dst, src, NULL) == 0)
-		return -1;
-	else
-		return 0;
-}
-#endif
-
-
-/* fopen() file with no group/other permissions */
-FILE *
-fopen_priv(const char *path, const char *mode)
-{
-	mode_t		old_umask = umask(S_IRWXG | S_IRWXO);
-	FILE	   *fp;
-
-	fp = fopen(path, mode);
-	umask(old_umask);
-
-	return fp;
-}