| index : pacman | |
| Archlinux32 fork of pacman | gitolite user |
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| -rw-r--r-- | lib/libalpm/deps.c | 176 |
diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c index 7bb15d08..ee95c897 100644 --- a/lib/libalpm/deps.c +++ b/lib/libalpm/deps.c @@ -43,7 +43,7 @@ void _alpm_dep_free(pmdepend_t *dep) FREE(dep); } -pmdepmissing_t *_alpm_depmiss_new(const char *target, pmdepend_t *dep, +static pmdepmissing_t *depmiss_new(const char *target, pmdepend_t *dep, const char *causingpkg) { pmdepmissing_t *miss; @@ -67,6 +67,18 @@ void _alpm_depmiss_free(pmdepmissing_t *miss) FREE(miss); } +/* Does pkg1 depend on pkg2, ie. does pkg2 satisfy a dependency of pkg1? */ +static int _alpm_dep_edge(pmpkg_t *pkg1, pmpkg_t *pkg2) +{ + alpm_list_t *i; + for(i = alpm_pkg_get_depends(pkg1); i; i = i->next) { + if(_alpm_depcmp(pkg2, i->data)) { + return 1; + } + } + return 0; +} + /* Convert a list of pmpkg_t * to a graph structure, * with a edge for each dependency. * Returns a list of vertices (one vertex = one package) @@ -192,13 +204,37 @@ alpm_list_t *_alpm_sortbydeps(alpm_list_t *targets, int reverse) return newtargs; } -pmpkg_t *_alpm_find_dep_satisfier(alpm_list_t *pkgs, pmdepend_t *dep) +static int no_dep_version(void) +{ + int flags = alpm_trans_get_flags(); + return flags != -1 && (flags & PM_TRANS_FLAG_NODEPVERSION); +} + +static pmdepend_t *filtered_depend(pmdepend_t *dep, int nodepversion) +{ + if(nodepversion) { + pmdepend_t *newdep = _alpm_dep_dup(dep); + ASSERT(newdep, return dep); + newdep->mod = PM_DEP_MOD_ANY; + dep = newdep; + } + return dep; +} + +static void release_filtered_depend(pmdepend_t *dep, int nodepversion) +{ + if(nodepversion) { + free(dep); + } +} + +static pmpkg_t *find_dep_satisfier(alpm_list_t *pkgs, pmdepend_t *dep) { alpm_list_t *i; for(i = pkgs; i; i = alpm_list_next(i)) { pmpkg_t *pkg = i->data; - if(_alpm_depcmp_tolerant(pkg, dep)) { + if(_alpm_depcmp(pkg, dep)) { return pkg; } } @@ -214,7 +250,7 @@ pmpkg_t *_alpm_find_dep_satisfier(alpm_list_t *pkgs, pmdepend_t *dep) pmpkg_t SYMEXPORT *alpm_find_satisfier(alpm_list_t *pkgs, const char *depstring) { pmdepend_t *dep = _alpm_splitdep(depstring); - pmpkg_t *pkg = _alpm_find_dep_satisfier(pkgs, dep); + pmpkg_t *pkg = find_dep_satisfier(pkgs, dep); _alpm_dep_free(dep); return pkg; } @@ -233,6 +269,7 @@ alpm_list_t SYMEXPORT *alpm_checkdeps(alpm_list_t *pkglist, int reversedeps, alpm_list_t *i, *j; alpm_list_t *targets, *dblist = NULL, *modified = NULL; alpm_list_t *baddeps = NULL; + int nodepversion; ALPM_LOG_FUNC; @@ -247,6 +284,8 @@ alpm_list_t SYMEXPORT *alpm_checkdeps(alpm_list_t *pkglist, int reversedeps, } alpm_list_free(targets); + nodepversion = no_dep_version(); + /* look for unsatisfied dependencies of the upgrade list */ for(i = upgrade; i; i = i->next) { pmpkg_t *tp = i->data; @@ -255,19 +294,21 @@ alpm_list_t SYMEXPORT *alpm_checkdeps(alpm_list_t *pkglist, int reversedeps, for(j = alpm_pkg_get_depends(tp); j; j = j->next) { pmdepend_t *depend = j->data; + depend = filtered_depend(depend, nodepversion); /* 1. we check the upgrade list */ /* 2. we check database for untouched satisfying packages */ - if(!_alpm_find_dep_satisfier(upgrade, depend) && - !_alpm_find_dep_satisfier(dblist, depend)) { + if(!find_dep_satisfier(upgrade, depend) && + !find_dep_satisfier(dblist, depend)) { /* Unsatisfied dependency in the upgrade list */ pmdepmissing_t *miss; char *missdepstring = alpm_dep_compute_string(depend); _alpm_log(PM_LOG_DEBUG, "checkdeps: missing dependency '%s' for package '%s'\n", missdepstring, alpm_pkg_get_name(tp)); free(missdepstring); - miss = _alpm_depmiss_new(alpm_pkg_get_name(tp), depend, NULL); + miss = depmiss_new(alpm_pkg_get_name(tp), depend, NULL); baddeps = alpm_list_add(baddeps, miss); } + release_filtered_depend(depend, nodepversion); } } @@ -278,21 +319,23 @@ alpm_list_t SYMEXPORT *alpm_checkdeps(alpm_list_t *pkglist, int reversedeps, pmpkg_t *lp = i->data; for(j = alpm_pkg_get_depends(lp); j; j = j->next) { pmdepend_t *depend = j->data; - pmpkg_t *causingpkg = _alpm_find_dep_satisfier(modified, depend); + depend = filtered_depend(depend, nodepversion); + pmpkg_t *causingpkg = find_dep_satisfier(modified, depend); /* we won't break this depend, if it is already broken, we ignore it */ /* 1. check upgrade list for satisfiers */ /* 2. check dblist for satisfiers */ if(causingpkg && - !_alpm_find_dep_satisfier(upgrade, depend) && - !_alpm_find_dep_satisfier(dblist, depend)) { + !find_dep_satisfier(upgrade, depend) && + !find_dep_satisfier(dblist, depend)) { pmdepmissing_t *miss; char *missdepstring = alpm_dep_compute_string(depend); _alpm_log(PM_LOG_DEBUG, "checkdeps: transaction would break '%s' dependency of '%s'\n", missdepstring, alpm_pkg_get_name(lp)); free(missdepstring); - miss = _alpm_depmiss_new(lp->name, depend, alpm_pkg_get_name(causingpkg)); + miss = depmiss_new(lp->name, depend, alpm_pkg_get_name(causingpkg)); baddeps = alpm_list_add(baddeps, miss); } + release_filtered_depend(depend, nodepversion); } } } @@ -324,18 +367,10 @@ static int dep_vercmp(const char *version1, pmdepmod_t mod, return equal; } -/* nodepversion: skip version checking */ -static int _depcmp(pmpkg_t *pkg, pmdepend_t *dep, int nodepversion) +int _alpm_depcmp(pmpkg_t *pkg, pmdepend_t *dep) { alpm_list_t *i; int satisfy = 0; - int depmod; - - if(nodepversion) { - depmod = PM_DEP_MOD_ANY; - } else { - depmod = dep->mod; - } /* check (pkg->name, pkg->version) */ if(pkg->name_hash && dep->name_hash @@ -343,7 +378,7 @@ static int _depcmp(pmpkg_t *pkg, pmdepend_t *dep, int nodepversion) /* skip more expensive checks */ } else { satisfy = (strcmp(pkg->name, dep->name) == 0 - && dep_vercmp(pkg->version, depmod, dep->version)); + && dep_vercmp(pkg->version, dep->mod, dep->version)); if(satisfy) { return satisfy; } @@ -355,7 +390,7 @@ static int _depcmp(pmpkg_t *pkg, pmdepend_t *dep, int nodepversion) const char *provver = strchr(provision, '='); if(provver == NULL) { /* no provision version */ - satisfy = (depmod == PM_DEP_MOD_ANY + satisfy = (dep->mod == PM_DEP_MOD_ANY && strcmp(provision, dep->name) == 0); } else { /* This is a bit tricker than the old code for performance reasons. To @@ -367,32 +402,13 @@ static int _depcmp(pmpkg_t *pkg, pmdepend_t *dep, int nodepversion) provver += 1; satisfy = (strlen(dep->name) == namelen && strncmp(provision, dep->name, namelen) == 0 - && dep_vercmp(provver, depmod, dep->version)); + && dep_vercmp(provver, dep->mod, dep->version)); } } return satisfy; } -/* tolerant : respects NODEPVERSION flag */ -int _alpm_depcmp_tolerant(pmpkg_t *pkg, pmdepend_t *dep) -{ - int nodepversion = 0; - int flags = alpm_trans_get_flags(); - - if (flags != -1) { - nodepversion = flags & PM_TRANS_FLAG_NODEPVERSION; - } - - return _depcmp(pkg, dep, nodepversion); -} - -/* strict : ignores NODEPVERSION flag */ -int _alpm_depcmp(pmpkg_t *pkg, pmdepend_t *dep) -{ - return _depcmp(pkg, dep, 0); -} - pmdepend_t *_alpm_splitdep(const char *depstring) { pmdepend_t *depend; @@ -526,28 +542,6 @@ void _alpm_recursedeps(pmdb_t *db, alpm_list_t *targs, int include_explicit) } } -/** Find a package satisfying a specified dependency. - * First look for a literal, going through each db one by one. Then look for - * providers. The first satisfier found is returned. - * The dependency can include versions with depmod operators. - * @param dbs an alpm_list_t* of pmdb_t where the satisfier will be searched - * @param depstring package or provision name, versioned or not - * @return a pmpkg_t* satisfying depstring - */ -pmpkg_t SYMEXPORT *alpm_find_dbs_satisfier(alpm_list_t *dbs, const char *depstring) -{ - pmdepend_t *dep; - pmpkg_t *pkg; - - ASSERT(dbs, return NULL); - - dep = _alpm_splitdep(depstring); - ASSERT(dep, return NULL); - pkg = _alpm_resolvedep(dep, dbs, NULL, 1); - _alpm_dep_free(dep); - return pkg; -} - /** * helper function for resolvedeps: search for dep satisfier in dbs * @@ -560,7 +554,7 @@ pmpkg_t SYMEXPORT *alpm_find_dbs_satisfier(alpm_list_t *dbs, const char *depstri * an error code without prompting * @return the resolved package **/ -pmpkg_t *_alpm_resolvedep(pmdepend_t *dep, alpm_list_t *dbs, +static pmpkg_t *resolvedep(pmdepend_t *dep, alpm_list_t *dbs, alpm_list_t *excluding, int prompt) { alpm_list_t *i, *j; @@ -572,7 +566,7 @@ pmpkg_t *_alpm_resolvedep(pmdepend_t *dep, alpm_list_t *dbs, /* 1. literals */ for(i = dbs; i; i = i->next) { pmpkg_t *pkg = _alpm_db_get_pkgfromcache(i->data, dep->name); - if(pkg && _alpm_depcmp_tolerant(pkg, dep) && !_alpm_pkg_find(excluding, pkg->name)) { + if(pkg && _alpm_depcmp(pkg, dep) && !_alpm_pkg_find(excluding, pkg->name)) { if(_alpm_pkg_should_ignore(pkg)) { int install = 0; if (prompt) { @@ -593,7 +587,7 @@ pmpkg_t *_alpm_resolvedep(pmdepend_t *dep, alpm_list_t *dbs, for(i = dbs; i; i = i->next) { for(j = _alpm_db_get_pkgcache(i->data); j; j = j->next) { pmpkg_t *pkg = j->data; - if(_alpm_depcmp_tolerant(pkg, dep) && strcmp(pkg->name, dep->name) != 0 && + if(_alpm_depcmp(pkg, dep) && strcmp(pkg->name, dep->name) != 0 && !_alpm_pkg_find(excluding, pkg->name)) { if(_alpm_pkg_should_ignore(pkg)) { int install = 0; @@ -650,7 +644,30 @@ pmpkg_t *_alpm_resolvedep(pmdepend_t *dep, alpm_list_t *dbs, return NULL; } -/* Computes resolvable dependencies for a given package and adds that package +/** Find a package satisfying a specified dependency. + * First look for a literal, going through each db one by one. Then look for + * providers. The first satisfier found is returned. + * The dependency can include versions with depmod operators. + * @param dbs an alpm_list_t* of pmdb_t where the satisfier will be searched + * @param depstring package or provision name, versioned or not + * @return a pmpkg_t* satisfying depstring + */ +pmpkg_t SYMEXPORT *alpm_find_dbs_satisfier(alpm_list_t *dbs, const char *depstring) +{ + pmdepend_t *dep; + pmpkg_t *pkg; + + ASSERT(dbs, return NULL); + + dep = _alpm_splitdep(depstring); + ASSERT(dep, return NULL); + pkg = resolvedep(dep, dbs, NULL, 1); + _alpm_dep_free(dep); + return pkg; +} + +/** + * Computes resolvable dependencies for a given package and adds that package * and those resolvable dependencies to a list. * * @param localpkgs is the list of local packages @@ -704,16 +721,16 @@ int _alpm_resolvedeps(alpm_list_t *localpkgs, alpm_list_t *dbs_sync, pmpkg_t *pk pmdepend_t *missdep = alpm_miss_get_dep(miss); /* check if one of the packages in the [*packages] list already satisfies * this dependency */ - if(_alpm_find_dep_satisfier(*packages, missdep)) { + if(find_dep_satisfier(*packages, missdep)) { _alpm_depmiss_free(miss); continue; } /* check if one of the packages in the [preferred] list already satisfies * this dependency */ - pmpkg_t *spkg = _alpm_find_dep_satisfier(preferred, missdep); + pmpkg_t *spkg = find_dep_satisfier(preferred, missdep); if(!spkg) { /* find a satisfier package in the given repositories */ - spkg = _alpm_resolvedep(missdep, dbs_sync, *packages, 0); + spkg = resolvedep(missdep, dbs_sync, *packages, 0); } if(!spkg) { pm_errno = PM_ERR_UNSATISFIED_DEPS; @@ -746,18 +763,6 @@ int _alpm_resolvedeps(alpm_list_t *localpkgs, alpm_list_t *dbs_sync, pmpkg_t *pk return ret; } -/* Does pkg1 depend on pkg2, ie. does pkg2 satisfy a dependency of pkg1? */ -int _alpm_dep_edge(pmpkg_t *pkg1, pmpkg_t *pkg2) -{ - alpm_list_t *i; - for(i = alpm_pkg_get_depends(pkg1); i; i = i->next) { - if(_alpm_depcmp_tolerant(pkg2, i->data)) { - return 1; - } - } - return 0; -} - const char SYMEXPORT *alpm_miss_get_target(const pmdepmissing_t *miss) { ALPM_LOG_FUNC; @@ -825,7 +830,8 @@ const char SYMEXPORT *alpm_dep_get_version(const pmdepend_t *dep) */ char SYMEXPORT *alpm_dep_compute_string(const pmdepend_t *dep) { - char *name, *opr, *ver, *str = NULL; + const char *name, *opr, *ver; + char *str; size_t len; ALPM_LOG_FUNC; @@ -863,7 +869,7 @@ char SYMEXPORT *alpm_dep_compute_string(const pmdepend_t *dep) break; } - if(dep->version) { + if(dep->mod != PM_DEP_MOD_ANY && dep->version) { ver = dep->version; } else { ver = ""; |