[pacman-dev] [PATCH] sync_addtarget rework

Nagy Gabor ngaba at bibl.u-szeged.hu
Sat Jul 5 06:59:21 EDT 2008


From 6541daa508b3f4d050db61f7212fcedf45ab0120 Mon Sep 17 00:00:00 2001
From: Nagy Gabor <ngaba at bibl.u-szeged.hu>
Date: Sat, 5 Jul 2008 12:53:55 +0200
Subject: [PATCH] sync_addtarget rework

Now '-S provision' handling is done in the back-end.
In case of multiple providers, the first one is selected (behavior change: deleted provision002.py).
The old processing order was: literal, group, provision; the new one: literal, provision, group;
this is more rational, but "pacman -S group" will be slower now.
Now "pacman -S repo/provision" also works.
Provision was generalized to dependencies, so "pacman -S 'bash>2.0'" or "pacman -S 'core/bash>2.0'" also works;
this can be useful in makepkg dependency resolving.

Signed-off-by: Nagy Gabor <ngaba at bibl.u-szeged.hu>
---
 lib/libalpm/deps.c            |   19 +++++++++--
 lib/libalpm/sync.c            |   68 +++++++++++++++--------------------------
 pactest/tests/provision002.py |   15 ---------
 src/pacman/sync.c             |   38 ++---------------------
 4 files changed, 43 insertions(+), 97 deletions(-)
 delete mode 100644 pactest/tests/provision002.py

diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c
index 1a6da96..e042166 100644
--- a/lib/libalpm/deps.c
+++ b/lib/libalpm/deps.c
@@ -544,8 +544,14 @@ pmpkg_t *_alpm_resolvedep(pmdepend_t *dep, alpm_list_t *dbs, alpm_list_t *exclud
 		if(pkg && alpm_depcmp(pkg, dep) && !_alpm_pkg_find(excluding, pkg->name)) {
 			if(_alpm_pkg_should_ignore(pkg)) {
 				int install;
-				QUESTION(handle->trans, PM_TRANS_CONV_INSTALL_IGNOREPKG, tpkg,
-			                 pkg, NULL, &install);
+				/* wow, we have a very stupid callback API here */
+				if(tpkg) {
+					QUESTION(handle->trans, PM_TRANS_CONV_INSTALL_IGNOREPKG, tpkg,
+				                 pkg, NULL, &install);
+				} else {
+					QUESTION(handle->trans, PM_TRANS_CONV_INSTALL_IGNOREPKG, pkg,
+				                 NULL, NULL, &install);
+				}					
 				if(!install) {
 					continue;
 				}
@@ -561,8 +567,13 @@ pmpkg_t *_alpm_resolvedep(pmdepend_t *dep, alpm_list_t *dbs, alpm_list_t *exclud
 			             !_alpm_pkg_find(excluding, pkg->name)) {
 				if(_alpm_pkg_should_ignore(pkg)) {
 					int install;
-					QUESTION(handle->trans, PM_TRANS_CONV_INSTALL_IGNOREPKG, tpkg,
-				                 pkg, NULL, &install);
+					if(tpkg) {
+						QUESTION(handle->trans, PM_TRANS_CONV_INSTALL_IGNOREPKG, tpkg,
+					                 pkg, NULL, &install);
+					} else {
+						QUESTION(handle->trans, PM_TRANS_CONV_INSTALL_IGNOREPKG, pkg,
+					                 NULL, NULL, &install);
+					}
 					if(!install) {
 						continue;
 					}
diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c
index 9336a2e..74fb7b1 100644
--- a/lib/libalpm/sync.c
+++ b/lib/libalpm/sync.c
@@ -272,65 +272,54 @@ int _alpm_sync_addtarget(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sy
 	char *targline;
 	char *targ;
 	alpm_list_t *j;
-	pmpkg_t *local;
-	pmpkg_t *spkg = NULL;
-	pmsyncpkg_t *sync;
-	int repo_found = 0;
+	pmpkg_t *local, *spkg;
+	pmdepend_t *dep; /* provisions and dependencies are also allowed */
 
 	ALPM_LOG_FUNC;
 
 	ASSERT(db_local != NULL, RET_ERR(PM_ERR_DB_NULL, -1));
 	ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
 	ASSERT(name != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1));
-	STRDUP(targline, name, RET_ERR(PM_ERR_MEMORY, -1));
 
+	STRDUP(targline, name, RET_ERR(PM_ERR_MEMORY, -1));
 	targ = strchr(targline, '/');
 	if(targ) {
 		/* we are looking for a package in a specific database */
+		alpm_list_t *dbs = NULL;
 		*targ = '\0';
 		targ++;
-		_alpm_log(PM_LOG_DEBUG, "searching for target '%s' in repo\n", targ);
-		for(j = dbs_sync; j && !spkg; j = j->next) {
+		_alpm_log(PM_LOG_DEBUG, "searching for target '%s' in repo '%s'\n", targ, targline);
+		for(j = dbs_sync; j; j = j->next) {
 			pmdb_t *db = j->data;
 			if(strcmp(db->treename, targline) == 0) {
-				repo_found = 1;
-				spkg = _alpm_db_get_pkgfromcache(db, targ);
-				if(spkg == NULL) {
-					pm_errno = PM_ERR_PKG_NOT_FOUND;
-					goto error;
-				}
+				dbs = alpm_list_add(NULL, db);
+				break;
 			}
 		}
-		if(!repo_found) {
+		if(dbs == NULL) {
 			_alpm_log(PM_LOG_ERROR, _("repository '%s' not found\n"), targline);
-			pm_errno = PM_ERR_PKG_REPO_NOT_FOUND;
-			goto error;
+			FREE(targline);
+			RET_ERR(PM_ERR_PKG_REPO_NOT_FOUND, -1);
 		}
+		dep = _alpm_splitdep(targ);
+		spkg = _alpm_resolvedep(dep, dbs, NULL, NULL);
+		_alpm_dep_free(dep);
+		alpm_list_free(dbs);
 	} else {
-		targ = targline;
-		for(j = dbs_sync; j && !spkg; j = j->next) {
-			pmdb_t *db = j->data;
-			spkg = _alpm_db_get_pkgfromcache(db, targ);
-		}
-		if(spkg == NULL) {
-			pm_errno = PM_ERR_PKG_NOT_FOUND;
-			goto error;
-		}
+		dep = _alpm_splitdep(targline);
+		spkg = _alpm_resolvedep(dep, dbs_sync, NULL, NULL);
+		_alpm_dep_free(dep);
 	}
+	FREE(targline);
 
+	if(spkg == NULL) {
+		RET_ERR(PM_ERR_PKG_NOT_FOUND, -1);
+	}
+	
 	if(_alpm_sync_find(trans->packages, alpm_pkg_get_name(spkg))) {
-		FREE(targline);
 		RET_ERR(PM_ERR_TRANS_DUP_TARGET, -1);
 	}
 
-	if(_alpm_pkg_should_ignore(spkg)) {
-		int resp;
-		QUESTION(trans, PM_TRANS_CONV_INSTALL_IGNOREPKG, spkg, NULL, NULL, &resp);
-		if (!resp) {
-			return(0);
-		}
-	}
-
 	local = _alpm_db_get_pkgfromcache(db_local, alpm_pkg_get_name(spkg));
 	if(local) {
 		if(_alpm_pkg_compare_versions(local, spkg) == 0) {
@@ -349,22 +338,15 @@ int _alpm_sync_addtarget(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sy
 	}
 
 	/* add the package to the transaction */
-	sync = _alpm_sync_new(PM_PKG_REASON_EXPLICIT, spkg, NULL);
+	pmsyncpkg_t *sync = _alpm_sync_new(PM_PKG_REASON_EXPLICIT, spkg, NULL);
 	if(sync == NULL) {
-		goto error;
+		return(-1);
 	}
 	_alpm_log(PM_LOG_DEBUG, "adding target '%s' to the transaction set\n",
 						alpm_pkg_get_name(spkg));
 	trans->packages = alpm_list_add(trans->packages, sync);
 
-	FREE(targline);
 	return(0);
-
-error:
-	if(targline) {
-		FREE(targline);
-	}
-	return(-1);
 }
 
 /* Helper functions for alpm_list_remove
diff --git a/pactest/tests/provision002.py b/pactest/tests/provision002.py
deleted file mode 100644
index 32bc4b8..0000000
--- a/pactest/tests/provision002.py
+++ /dev/null
@@ -1,15 +0,0 @@
-self.description = "-S provision"
-
-sp = pmpkg("pkg1")
-sp.provides = ["provision=1.0-1"]
-self.addpkg2db("sync", sp)
-
-sp = pmpkg("pkg2")
-sp.provides = ["provision=1.0-1"]
-self.addpkg2db("sync", sp)
-
-self.args = "-S provision"
-
-self.addrule("PACMAN_RETCODE=1")
-self.addrule("!PKG_EXIST=pkg1")
-self.addrule("!PKG_EXIST=pkg2")
diff --git a/src/pacman/sync.c b/src/pacman/sync.c
index 47ab4eb..6877d85 100644
--- a/src/pacman/sync.c
+++ b/src/pacman/sync.c
@@ -617,41 +617,9 @@ static int sync_trans(alpm_list_t *targets)
 					}
 				}
 				if(!found) {
-					/* targ not found in sync db, searching for providers... */
-					alpm_list_t *prov = NULL;
-					for(j = sync_dbs; j; j = alpm_list_next(j)) {
-						pmdb_t *db = alpm_list_getdata(j);
-						alpm_list_t *dblist = alpm_db_getpkgcache(db);
-						alpm_list_t *satisfiers = alpm_find_pkg_satisfiers(dblist, targ);
-						prov = alpm_list_join(prov, satisfiers);
-					}
-					if(prov != NULL) {
-						if(alpm_list_count(prov) == 1) {
-							const char *pname = NULL;
-							pmpkg_t *pkg = alpm_list_getdata(prov);
-							pname = alpm_pkg_get_name(pkg);
-							alpm_list_free(prov);
-							printf(_("Warning: %s provides %s\n"), pname, targ);
-							targets = alpm_list_add(targets, strdup(pname));
-						} else {
-							alpm_list_t *k;
-							pm_fprintf(stderr, PM_LOG_ERROR,
-								_("several packages provide %s, please specify one :\n"), targ);
-							for(k = prov; k; k = alpm_list_next(k)) {
-								pmpkg_t *pkg = alpm_list_getdata(k);
-								printf("%s ", alpm_pkg_get_name(pkg));
-							}
-							printf("\n");
-							alpm_list_free(prov);
-							retval = 1;
-							goto cleanup;
-						}
-					} else {
-						pm_fprintf(stderr, PM_LOG_ERROR,
-							_("'%s': not found in sync db\n"), targ);
-						retval = 1;
-						goto cleanup;
-					}
+					pm_fprintf(stderr, PM_LOG_ERROR, _("'%s': not found in sync db\n"), targ);
+					retval = 1;
+					goto cleanup;
 				}
 			}
 		}
-- 
1.5.6.1





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