various: make fancy progress bar and update todo

1 files changed, 142 insertions, 99 deletions

diff --git a/src/state.c b/src/state.c
index 24ecda9..484d5ee 100644
--- a/src/state.c
+++ b/src/state.c
@@ -15,10 +15,6 @@
 #include "apk_state.h"
 #include "apk_database.h"
 
-static int apk_state_commit_deps(struct apk_state *state,
-				 struct apk_database *db,
-				 struct apk_dependency_array *deps);
-
 struct apk_state *apk_state_new(struct apk_database *db)
 {
 	struct apk_state *state;
@@ -27,6 +23,7 @@ struct apk_state *apk_state_new(struct apk_database *db)
 	num_bytes = sizeof(struct apk_state) + (db->pkg_id * 2 + 7) / 8;
 	state = (struct apk_state*) calloc(1, num_bytes);
 	state->refs = 1;
+	list_init(&state->change_list_head);
 
 	return state;
 }
@@ -45,6 +42,24 @@ void apk_state_unref(struct apk_state *state)
 	free(state);
 }
 
+static int apk_state_add_change(struct apk_state *state,
+				struct apk_package *oldpkg,
+				struct apk_package *newpkg)
+{
+	struct apk_change *change;
+
+	change = (struct apk_change *) malloc(sizeof(struct apk_change));
+	if (change == NULL)
+		return -1;
+
+	list_init(&change->change_list);
+	list_add_tail(&change->change_list, &state->change_list_head);
+	change->oldpkg = oldpkg;
+	change->newpkg = newpkg;
+
+	return 0;
+}
+
 static void apk_state_set(struct apk_state *state, int pos, int val)
 {
 	int byte = pos / 4, offs = pos % 4;
@@ -63,20 +78,18 @@ static int apk_state_get(struct apk_state *state, int pos)
 	return (state->bitarray[byte] >> (offs * 2)) & 0x3;
 }
 
-static int apk_state_commit_pkg(struct apk_state *state,
-				struct apk_database *db,
-				struct apk_name *name,
-				struct apk_package *oldpkg,
-				struct apk_package *newpkg)
+static void apk_print_change(struct apk_database *db,
+			     struct apk_package *oldpkg,
+			     struct apk_package *newpkg)
 {
 	const char *msg = NULL;
-	int r, upgrade = 0;
+	int r;
+	struct apk_name *name;
 
-	if (newpkg != NULL) {
-		r = apk_state_commit_deps(state, db, newpkg->depends);
-		if (r != 0)
-			return r;
-	}
+	if (oldpkg != NULL)
+		name = oldpkg->name;
+	else
+		name = newpkg->name;
 
 	if (oldpkg == NULL) {
 		apk_message("Installing %s (%s)",
@@ -90,79 +103,100 @@ static int apk_state_commit_pkg(struct apk_state *state,
 		switch (r) {
 		case APK_VERSION_LESS:
 			msg = "Downgrading";
-			upgrade = 1;
 			break;
 		case APK_VERSION_EQUAL:
 			msg = "Re-installing";
 			break;
 		case APK_VERSION_GREATER:
 			msg = "Upgrading";
-			upgrade = 1;
 			break;
 		}
 		apk_message("%s %s (%s -> %s)",
-			    msg, name->name, oldpkg->version, newpkg->version);
+			    msg, name->name, oldpkg->version,
+			    newpkg->version);
 	}
-
-	return apk_db_install_pkg(db, oldpkg, newpkg);
 }
 
-static int apk_state_commit_name(struct apk_state *state,
-				 struct apk_database *db,
-				 struct apk_name *name)
-{
-	struct apk_package *oldpkg = NULL, *newpkg = NULL;
-	int i;
+struct apk_stats {
+	unsigned int bytes;
+	unsigned int packages;
+};
 
-	for (i = 0; i < name->pkgs->num; i++) {
-		if (apk_pkg_get_state(name->pkgs->item[i]) == APK_STATE_INSTALL)
-			oldpkg = name->pkgs->item[i];
-		if (apk_state_get(state, name->pkgs->item[i]->id) == APK_STATE_INSTALL)
-			newpkg = name->pkgs->item[i];
+static void apk_count_change(struct apk_change *change, struct apk_stats *stats)
+{
+	if (change->newpkg != NULL) {
+		stats->bytes += change->newpkg->installed_size;
+		stats->packages ++;
 	}
+	if (change->oldpkg != NULL)
+		stats->packages ++;
+}
 
-	if (oldpkg == NULL && newpkg == NULL)
-		return 0;
+static inline void apk_draw_progress(int x, int last)
+{
+	char tmp[] =
+		"-[                    ]- "
+		"\b\b\b\b\b\b\b\b\b\b\b\b\b"
+		"\b\b\b\b\b\b\b\b\b\b\b\b";
+	int i;
 
-	/* No reinstallations for now */
-	if (newpkg == oldpkg)
-		return 0;
+	for (i = 0; i < x; i++)
+		tmp[2+i] = '#';
 
-	return apk_state_commit_pkg(state, db, name, oldpkg, newpkg);
+	fwrite(tmp, last ? 25 : sizeof(tmp)-1, 1, stderr);
+	fflush(stderr);
 }
 
-static int apk_state_commit_deps(struct apk_state *state,
-				 struct apk_database *db,
-				 struct apk_dependency_array *deps)
+struct progress {
+	struct apk_stats done;
+	struct apk_stats total;
+	struct apk_package *pkg;
+	size_t count;
+};
+
+static void progress_cb(void *ctx, size_t progress)
 {
-	int r, i;
+	struct progress *prog = (struct progress *) ctx;
+	size_t partial = 0, count;
 
-	if (deps == NULL)
-		return 0;
+	if (prog->pkg != NULL)
+		partial = muldiv(progress, prog->pkg->installed_size, APK_PROGRESS_SCALE);
 
-	for (i = 0; i < deps->num; i++) {
-		r = apk_state_commit_name(state, db, deps->item[i].name);
-		if (r != 0)
-			return r;
-	}
+        count = muldiv(20, prog->done.bytes + prog->done.packages + partial,
+		       prog->total.bytes + prog->total.packages);
 
-	return 0;
+	if (prog->count != count)
+		apk_draw_progress(count, 0);
+	prog->count = count;
 }
 
 int apk_state_commit(struct apk_state *state,
 		     struct apk_database *db)
 {
-	struct apk_package *pkg, *n;
+	struct progress prog;
+	struct apk_change *change;
 	int r;
 
-	/* Check all dependencies */
-	r = apk_state_commit_deps(state, db, db->world);
-	if (r != 0)
-		return r;
+	/* Count what needs to be done */
+	memset(&prog, 0, sizeof(prog));
+	list_for_each_entry(change, &state->change_list_head, change_list)
+		apk_count_change(change, &prog.total);
 
-	/* And purge all installed packages that were not considered */
-	list_for_each_entry_safe(pkg, n, &db->installed.packages, installed_pkgs_list)
-		apk_state_commit_name(state, db, pkg->name);
+	/* Go through changes */
+	list_for_each_entry(change, &state->change_list_head, change_list) {
+		apk_print_change(db, change->oldpkg, change->newpkg);
+		prog.pkg = change->newpkg;
+
+		r = apk_db_install_pkg(db, change->oldpkg, change->newpkg,
+				       apk_progress ? progress_cb : NULL,
+				       &prog);
+		if (r != 0)
+			return r;
+
+		apk_count_change(change, &prog.done);
+	}
+	if (apk_progress)
+		apk_draw_progress(20, 1);
 
 	return 0;
 }
@@ -170,9 +204,8 @@ int apk_state_commit(struct apk_state *state,
 int apk_state_satisfy_name(struct apk_state *state,
 			   struct apk_name *name)
 {
-	struct apk_package *preferred = NULL;
-	int i;
-	int upgrading = 1;
+	struct apk_package *preferred = NULL, *installed = NULL;
+	int i, r, upgrading = 1;
 
 	/* Is something already installed? Or figure out the preferred
 	 * package. */
@@ -181,35 +214,52 @@ int apk_state_satisfy_name(struct apk_state *state,
 		    APK_STATE_INSTALL)
 			return 0;
 
+		if (apk_pkg_get_state(name->pkgs->item[i]) == APK_STATE_INSTALL) {
+			installed = name->pkgs->item[i];
+			if (!upgrading) {
+				preferred = installed;
+				continue;
+			}
+		}
+
 		if (preferred == NULL) {
 			preferred = name->pkgs->item[i];
 			continue;
 		}
 
-		if (upgrading) {
-			if (apk_version_compare(APK_BLOB_STR(name->pkgs->item[i]->version),
-						APK_BLOB_STR(preferred->version)) ==
-			    APK_VERSION_GREATER) {
-				preferred = name->pkgs->item[i];
-				continue;
-			}
-		} else {
-			if (apk_pkg_get_state(name->pkgs->item[i]) ==
-			    APK_STATE_INSTALL) {
-				preferred = name->pkgs->item[i];
-				continue;
-			}
+		if (apk_version_compare(APK_BLOB_STR(name->pkgs->item[i]->version),
+					APK_BLOB_STR(preferred->version)) ==
+		    APK_VERSION_GREATER) {
+			preferred = name->pkgs->item[i];
+			continue;
 		}
 	}
 
-	/* Mark conflicting names as no install */
+	/* FIXME: current code considers only the prefferred package. */
+
+	/* Can we install? */
+	switch (apk_state_get(state, preferred->id)) {
+	case APK_STATE_INSTALL:
+		return 0;
+	case APK_STATE_NO_INSTALL:
+		return -1;
+	}
+
+	/* Update state bits and track changes */
 	for (i = 0; i < name->pkgs->num; i++) {
 		if (name->pkgs->item[i] != preferred)
 			apk_state_set(state, name->pkgs->item[i]->id,
 				      APK_STATE_NO_INSTALL);
 	}
+	apk_state_set(state, preferred->id, APK_STATE_INSTALL);
+
+	if (preferred != installed) {
+		r = apk_state_add_change(state, installed, preferred);
+		if (r != 0)
+			return r;
+	}
 
-	return apk_state_pkg_install(state, preferred);
+	return apk_state_satisfy_deps(state, preferred->depends);
 }
 
 int apk_state_satisfy_deps(struct apk_state *state,
@@ -234,33 +284,26 @@ int apk_state_satisfy_deps(struct apk_state *state,
 	return 0;
 }
 
-void apk_state_pkg_set(struct apk_state *state,
-		       struct apk_package *pkg)
+int apk_state_purge_unneeded(struct apk_state *state,
+			     struct apk_database *db)
 {
-	apk_state_set(state, pkg->id, APK_STATE_INSTALL);
-}
+	struct apk_package *pkg;
+	int r;
 
-int apk_state_pkg_install(struct apk_state *state,
-			  struct apk_package *pkg)
-{
-	switch (apk_state_get(state, pkg->id)) {
-	case APK_STATE_INSTALL:
-		return 0;
-	case APK_STATE_NO_INSTALL:
-		return -1;
+	/* Purge unconsidered packages */
+	list_for_each_entry(pkg, &db->installed.packages, installed_pkgs_list) {
+		switch (apk_state_get(state, pkg->id)) {
+		case APK_STATE_INSTALL:
+		case APK_STATE_NO_INSTALL:
+			break;
+		default:
+			r = apk_state_add_change(state, pkg, NULL);
+			if (r != 0)
+				return r;
+			break;
+		}
 	}
 
-	apk_state_set(state, pkg->id, APK_STATE_INSTALL);
-
-	if (pkg->depends == NULL)
-		return 0;
-
-	return apk_state_satisfy_deps(state, pkg->depends);
-}
-
-int apk_state_pkg_is_installed(struct apk_state *state,
-			       struct apk_package *pkg)
-{
-	return apk_state_get(state, pkg->id);
+	return 0;
 }