X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=zpm-syncfs.c;h=ecc66c84f8bec7df14a66bd2ad21a50e8fe81431;hb=fc0e2fbaf7051e42be1a6449a5a004fb3e665d45;hp=935e71509f2591ae20cc3a9801c22548c0a53ae1;hpb=7b9350d9ec18a9ab5bbcf92a6523b856839f8f5b;p=zpackage

diff --git a/zpm-syncfs.c b/zpm-syncfs.c
index 935e715..ecc66c8 100644
--- a/zpm-syncfs.c
+++ b/zpm-syncfs.c
@@ -40,11 +40,14 @@ struct nitem {
 	gid_t gid;
 	char *dest;
 	char *path;
-	char *hash;
+	char *hash, *ohash;
+	char *mds, *omds;
 	char *target;
+	char *pkglist; /* space separated */
 	time_t mtime;
 	mode_t mode;
 	int ftype;
+	int configuration;
 	struct timespec times[2];
 };
 
@@ -285,6 +288,7 @@ static int remove_files(void *f, int ncols, char **vals, char **cols) {
 	struct config *conf = f;
 	char *dest;
 	struct stat st;
+	int flags = 0;
 
 	dest = COL("dest");
 	if (!dest) return seterror(conf,"no file dest");
@@ -306,21 +310,22 @@ static int remove_files(void *f, int ncols, char **vals, char **cols) {
 	}
 
 	if (S_ISDIR(st.st_mode)) {
-		if (conf->verbose) {
-			fprintf(stderr, "rmdir(%s)\n", dest);
-		}
-		rmdir(dest);
-	} else if (S_ISREG(st.st_mode)) {
-		/* TODO conf to import before removal */
-		if (conf->verbose) {
-			fprintf(stderr, "unlink(%s)\n", dest);
-		}
-		if (unlink(dest) == -1) {
-			return seterror(conf, "can't unlink");
-		}
-	} else {
-		if (unlink(dest) == -1) {
-			return seterror(conf, "can't unlink");
+		flags = AT_REMOVEDIR;
+	}
+	/* TODO check that expected filetype matches actual filetype */
+
+	if (conf->verbose) {
+		fprintf(stderr, "%s(%s)\n", flags ? "rmdir" : "unlink", dest);
+	}
+
+	errno = 0;
+
+	if (unlinkat(AT_FDCWD, dest, flags) == -1) {
+		switch (errno) {
+			case ENOENT:
+				break;
+			default:
+				return seterror(conf, "can't unlink");
 		}
 	}
 	
@@ -339,6 +344,7 @@ static int remove_files(void *f, int ncols, char **vals, char **cols) {
 #define D_GID 0x80
 #define D_MODE 0x100
 #define D_MTIME 0x200
+#define D_OHASH 0x400
 #define D_ERROR 0x1000
 #define D_STATERROR 0x2000
 #define D_RLERROR 0x4000
@@ -376,6 +382,9 @@ static unsigned int file_compare(struct nitem *n, struct stat *st) {
 			if (strcmp(n->hash, ehash) != 0) {
 				diff |= D_HASH;
 			}
+			if (n->ohash && strcmp(n->ohash, ehash) != 0) {
+				diff |= D_OHASH;
+			}
 		}
 		if (n->hash && etype == S_IFLNK && stat_type == S_IFLNK) {
 			lsize = readlink(n->dest, link, sizeof link);
@@ -460,6 +469,13 @@ static int read_item(struct config *conf, int ncols, char **vals, char **cols,
 
 	n->mode = strtoul(val, NULL, 8);
 
+	val = COL("configuration");
+	if (!val) {
+		seterror(conf, "can't determine config status");
+		return 0;
+	}
+	n->configuration = strtoul(val, NULL, 10);
+
 	val = COL("filetype");
 	if (!val || strlen(val) == 0) {
 		seterror(conf, "can't determine file type");
@@ -467,6 +483,12 @@ static int read_item(struct config *conf, int ncols, char **vals, char **cols,
 	}
 	n->ftype = *val;
 
+	/* these can be null */
+	n->ohash = COL("ohash");
+	n->mds = COL("mds");
+	n->omds = COL("omds");
+	n->pkglist = COL("pkglist");
+
 	if (n->ftype == 'r') {
 		n->hash = COL("hash");
 		if (!n->hash) {
@@ -601,6 +623,12 @@ static int set_md(struct config *conf, struct nitem *item) {
 /* flags: 1 = set md, 2 = create leading dirs, 4 = unlink existing file,
  * 8 = rmdir existing dir, 16 = return true/false
  */
+#define INS_MD 0x1
+#define INS_CLD 0x2
+#define INS_UNLINK 0x4
+#define INS_RMDIR 0x8
+#define INS_RTF 0x10
+#define INS_ZPMNEW 0x20
 static int install(struct config *conf, struct nitem *item, unsigned int flags) {
 	int rv = 1;
 	struct zpm *source;
@@ -681,6 +709,89 @@ static int install(struct config *conf, struct nitem *item, unsigned int flags)
 	return success;
 }
 
+/*
+ *
+ */
+static int adjust_for_config(struct config *conf, struct nitem *n, unsigned int
+		diffs) {
+#if 0
+	if (!n->oldwasconf) {
+		return 0;
+	}
+#endif
+	/* TODO what if old was a directory? */
+	if (!n->configuration) {
+		/* replacing conf with non-conf */
+		/* absorb file, mark todo */
+		char hash[ZPM_HASH_STRLEN+1];
+		if (zpm_import(conf->log, n->dest, 0, hash)) {
+			zpm_note_add(conf->log, n->pkglist, n->dest, hash,
+					"replaced config file with non-config.  zpm-cat %.8s", hash);
+		} else {
+			fprintf(stderr, "unable to import existing config file %s\n", n->dest);
+			return 1;
+		}
+		return 0;
+	}
+
+	int sametype = (!(diffs & D_TYPE));
+	int isdir = (diffs & D_ISDIR);
+	int eisdir = (diffs & D_EISDIR);
+
+	/* both old and new are config files */
+	if (isdir && sametype) {
+		/* both config directories, can only be changing
+		 * metadata, so no adjustment needed
+		 */
+		return 0;
+	}
+
+	if (isdir) {
+		char hash[ZPM_HASH_STRLEN+1];
+
+		/* replacing old file with new directory */
+		/* absorb, make note */
+		if (zpm_import(conf->log, n->dest, 0, hash)) {
+			zpm_note_add(conf->log, n->pkglist, n->dest, hash,
+					"replaced config file with config directory.  zpm-cat %.8s", hash);
+		} else {
+			fprintf(stderr, "unable to import existing config file %s\n", n->dest);
+			return -1;
+		}
+		return 0;
+	}
+
+	if (eisdir) {
+		/* replacing old conf directory with a conf file.
+		 * nothing needs to be done, if the directory
+		 * is empty, it's ok to remove.  if it's not empty,
+		 * the install will fail
+		 */
+		return 0;
+	}
+	
+	/* replacing old file with new file */
+	/* new is same as on disk */
+	if (!(diffs & D_HASH)) {
+		return 0;
+	}
+
+	/* new is different than on disk, but on disk is same as old */
+	if (!(diffs & D_OHASH)) {
+		/* ok to do the update, since same as default */
+		fprintf(stderr, "updating default config %s\n", n->dest);
+		return 0;
+	}
+
+	/* new is different than on disk, and disk different than old */
+	/* log */
+	zpm_note_add(conf->log, n->pkglist, n->dest, n->hash,
+			"default config file update.  zpm-cat %.8s", n->hash);
+	/* TODO check for note error */
+	return 1;
+
+}
+
 static int install_files(void *f, int ncols, char **vals, char **cols) {
 	struct config *conf = f;
 	struct nitem nitem;
@@ -747,15 +858,39 @@ static int install_files(void *f, int ncols, char **vals, char **cols) {
 			return install(conf, &nitem, 3);
 		}
 
+		switch (adjust_for_config(conf, &nitem, diffs)) {
+			case -1: return conf->errabort; break;
+			case 1:
+			fprintf(stderr, "skipping changed default config file: %s\n", nitem.dest);
+			return 0; break;
+			default: break;
+		}
+
 		/* file exists in filesystem */
 		if (sametype) {
 			if (mdsame && hashsame) {
-				fprintf(stderr, "%s should not be an update", nitem.dest);
-				/* warn, bug in logic.  This shouldn't
-				 * occur, because if there is nothing
-				 * to do, it shouldn't be listed
-				 * as an update
+				/* warn, bug in logic.  This shouldn't occur,
+				 * because if there is nothing to do, it
+				 * shouldn't be listed as an update
+				 */
+				/* could be an update.  We're checking against
+				 * what's actually on disk, not what was
+				 * expected to have been on disk.  So, if
+				 * the admin has modified the file, or if
+				 * it had been installed ignoring the user
+				 * and group, it might be correct on disk
+				 * but not as in the local database
 				 */
+				/* TODO detect whether this a logic bug or
+				 * an on-disk difference
+				 */
+#if 0
+				fprintf(stderr, "%s should not be an update\n", nitem.dest);
+				fprintf(stderr, "old hash: %s\n", nitem.ohash);
+				fprintf(stderr, "new hash: %s\n", nitem.hash);
+				fprintf(stderr, "old mds: %s\n", nitem.omds);
+				fprintf(stderr, "new mds: %s\n", nitem.mds);
+#endif
 				/* do nothing */
 				return 0;
 			}
@@ -792,6 +927,7 @@ static int install_files(void *f, int ncols, char **vals, char **cols) {
 			return install(conf, &nitem, 7);
 		}
 		/* error, should not be possible, assert(0)? */
+		fprintf(stderr,"impossible state: %s:%d\n", __func__, __LINE__);
 	}
 
 	if (installing) {