From 88c803457a53d2f83168519f0651e6dc258003b5 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Wed, 29 Dec 2010 13:43:53 -0500 Subject: [PATCH] Improve pg_upgrade's checks for required executables. Don't insist on pg_dumpall and psql being present in the old cluster, since they are not needed. Do insist on pg_resetxlog being present (in both old and new), since we need it. Also check for pg_config, but only in the new cluster. Remove the useless attempt to call pg_config in the old cluster; we don't need to know the old value of --pkglibdir. (In the case of a stripped-down migration installation there might be nothing there to look at anyway, so any future change that might reintroduce that need would have to be considered carefully.) Per my attempts to build a minimal previous-version installation to support pg_upgrade. --- contrib/pg_upgrade/exec.c | 18 ++++++++++++------ contrib/pg_upgrade/option.c | 6 +++++- 2 files changed, 17 insertions(+), 7 deletions(-) diff --git a/contrib/pg_upgrade/exec.c b/contrib/pg_upgrade/exec.c index 455d7ac45d..af0fcf93a9 100644 --- a/contrib/pg_upgrade/exec.c +++ b/contrib/pg_upgrade/exec.c @@ -14,7 +14,7 @@ static void check_data_dir(const char *pg_data); -static void check_bin_dir(ClusterInfo *cluster); +static void check_bin_dir(ClusterInfo *cluster, Cluster whichCluster); static int check_exec(const char *dir, const char *cmdName); static const char *validate_exec(const char *path); @@ -99,7 +99,7 @@ verify_directories(void) check_ok(); prep_status("Checking old bin directory (%s)", old_cluster.bindir); - check_bin_dir(&old_cluster); + check_bin_dir(&old_cluster, CLUSTER_OLD); check_ok(); prep_status("Checking new data directory (%s)", new_cluster.pgdata); @@ -107,7 +107,7 @@ verify_directories(void) check_ok(); prep_status("Checking new bin directory (%s)", new_cluster.bindir); - check_bin_dir(&new_cluster); + check_bin_dir(&new_cluster, CLUSTER_NEW); check_ok(); } @@ -158,12 +158,18 @@ check_data_dir(const char *pg_data) * exit(). */ static void -check_bin_dir(ClusterInfo *cluster) +check_bin_dir(ClusterInfo *cluster, Cluster whichCluster) { check_exec(cluster->bindir, "postgres"); - check_exec(cluster->bindir, "psql"); check_exec(cluster->bindir, "pg_ctl"); - check_exec(cluster->bindir, "pg_dumpall"); + check_exec(cluster->bindir, "pg_resetxlog"); + if (whichCluster == CLUSTER_NEW) + { + /* these are only needed in the new cluster */ + check_exec(cluster->bindir, "pg_config"); + check_exec(cluster->bindir, "psql"); + check_exec(cluster->bindir, "pg_dumpall"); + } } diff --git a/contrib/pg_upgrade/option.c b/contrib/pg_upgrade/option.c index e63bc85bc1..f6b5706537 100644 --- a/contrib/pg_upgrade/option.c +++ b/contrib/pg_upgrade/option.c @@ -310,7 +310,11 @@ validateDirectoryOption(char **dirpath, static void get_pkglibdirs(void) { - old_cluster.libpath = get_pkglibdir(old_cluster.bindir); + /* + * we do not need to know the libpath in the old cluster, and might not + * have a working pg_config to ask for it anyway. + */ + old_cluster.libpath = NULL; new_cluster.libpath = get_pkglibdir(new_cluster.bindir); } -- 2.40.0