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-rw-r--r--src/util/pactree.c279
1 files changed, 186 insertions, 93 deletions
diff --git a/src/util/pactree.c b/src/util/pactree.c
index 6a10006f..9b678631 100644
--- a/src/util/pactree.c
+++ b/src/util/pactree.c
@@ -26,63 +26,137 @@
#include <alpm.h>
#include <alpm_list.h>
+#define LINE_MAX 512
+
/* output */
-char *provides = " provides";
-char *unresolvable = " [unresolvable]";
-char *branch_tip1 = "|--";
-char *branch_tip2 = "+--";
-int indent_size = 3;
-
-/* color */
-char *branch1_color = "\033[0;33m"; /* yellow */
-char *branch2_color = "\033[0;37m"; /* white */
-char *leaf1_color = "\033[1;32m"; /* bold green */
-char *leaf2_color = "\033[0;32m"; /* green */
-char *color_off = "\033[0m";
+struct graph_style {
+ const char *provides;
+ const char *tip1;
+ const char *tip2;
+ int indent;
+};
+
+static struct graph_style graph_default = {
+ " provides",
+ "|--",
+ "+--",
+ 3
+};
+
+static struct graph_style graph_linear = {
+ "",
+ "",
+ "",
+ 0
+};
+
+/* color choices */
+struct color_choices {
+ const char *branch1;
+ const char *branch2;
+ const char *leaf1;
+ const char *leaf2;
+ const char *off;
+};
+
+static struct color_choices use_color = {
+ "\033[0;33m", /* yellow */
+ "\033[0;37m", /* white */
+ "\033[1;32m", /* bold green */
+ "\033[0;32m", /* green */
+ "\033[0m"
+};
+
+static struct color_choices no_color = {
+ "",
+ "",
+ "",
+ "",
+ ""
+};
/* globals */
-pmdb_t *db_local;
+alpm_handle_t *handle = NULL;
alpm_list_t *walked = NULL;
alpm_list_t *provisions = NULL;
/* options */
-int color = 0;
+struct color_choices *color = &no_color;
+struct graph_style *style = &graph_default;
int graphviz = 0;
-int linear = 0;
int max_depth = -1;
int reverse = 0;
int unique = 0;
-char *dbpath = NULL;
+int searchsyncs = 0;
+const char *dbpath = DBPATH;
-static int alpm_local_init(void)
+static char *strtrim(char *str)
{
- int ret;
+ char *pch = str;
- ret = alpm_initialize();
- if(ret != 0) {
- return(ret);
+ if(str == NULL || *str == '\0') {
+ /* string is empty, so we're done. */
+ return str;
}
- ret = alpm_option_set_root(ROOTDIR);
- if(ret != 0) {
- return(ret);
+ while(isspace((unsigned char)*pch)) {
+ pch++;
+ }
+ if(pch != str) {
+ memmove(str, pch, (strlen(pch) + 1));
}
- if(dbpath) {
- ret = alpm_option_set_dbpath(dbpath);
- } else {
- ret = alpm_option_set_dbpath(DBPATH);
+ /* check if there wasn't anything but whitespace in the string. */
+ if(*str == '\0') {
+ return str;
}
- if(ret != 0) {
- return(ret);
+
+ pch = (str + (strlen(str) - 1));
+ while(isspace((unsigned char)*pch)) {
+ pch--;
}
+ *++pch = '\0';
+
+ return str;
+}
+
+static int register_syncs(void) {
+ FILE *fp;
+ char *ptr, *section = NULL;
+ char line[LINE_MAX];
+ const alpm_siglevel_t level = ALPM_SIG_DATABASE | ALPM_SIG_DATABASE_OPTIONAL;
- db_local = alpm_option_get_localdb();
- if(!db_local) {
- return(1);
+ fp = fopen(CONFFILE, "r");
+ if(!fp) {
+ return 1;
}
- return(0);
+ while(fgets(line, LINE_MAX, fp)) {
+ strtrim(line);
+
+ if(line[0] == '#' || !strlen(line)) {
+ continue;
+ }
+
+ if((ptr = strchr(line, '#'))) {
+ *ptr = '\0';
+ strtrim(line);
+ }
+
+ if(line[0] == '[' && line[strlen(line) - 1] == ']') {
+ free(section);
+ section = strndup(&line[1], strlen(line) - 2);
+
+ if(section && strcmp(section, "options") != 0) {
+ alpm_db_register_sync(handle, section, level);
+ }
+ }
+ }
+
+ free(section);
+ fclose(fp);
+
+ return 0;
}
static int parse_options(int argc, char *argv[])
@@ -98,21 +172,22 @@ static int parse_options(int argc, char *argv[])
{"help", no_argument, 0, 'h'},
{"linear", no_argument, 0, 'l'},
{"reverse", no_argument, 0, 'r'},
+ {"sync", no_argument, 0, 'S'},
{"unique", no_argument, 0, 'u'},
{0, 0, 0, 0}
};
- while((opt = getopt_long(argc, argv, "b:cd:ghlru", opts, &option_index))) {
+ while((opt = getopt_long(argc, argv, "b:cd:ghlrsu", opts, &option_index))) {
if(opt < 0) {
break;
}
switch(opt) {
case 'b':
- dbpath = strdup(optarg);
+ dbpath = optarg;
break;
case 'c':
- color = 1;
+ color = &use_color;
break;
case 'd':
/* validate depth */
@@ -126,40 +201,30 @@ static int parse_options(int argc, char *argv[])
graphviz = 1;
break;
case 'l':
- linear = 1;
+ style = &graph_linear;
break;
case 'r':
reverse = 1;
break;
+ case 's':
+ searchsyncs = 1;
+ break;
case 'u':
- unique = linear = 1;
+ unique = 1;
+ style = &graph_linear;
break;
case 'h':
case '?':
default:
- return(1);
+ return 1;
}
}
if(!argv[optind]) {
- return(1);
+ return 1;
}
- if(!color) {
- branch1_color = "";
- branch2_color = "";
- leaf1_color = "";
- leaf2_color = "";
- color_off = "";
- }
- if(linear) {
- provides = "";
- branch_tip1 = "";
- branch_tip2 = "";
- indent_size = 0;
- }
-
- return(0);
+ return 0;
}
static void usage(void)
@@ -172,25 +237,22 @@ static void usage(void)
" -g, --graph generate output for graphviz's dot\n"
" -l, --linear enable linear output\n"
" -r, --reverse show reverse dependencies\n"
+ " -s, --sync search sync DBs instead of local\n"
" -u, --unique show dependencies with no duplicates (implies -l)\n\n"
" -h, --help display this help message\n");
}
static void cleanup(void)
{
- if(dbpath) {
- free(dbpath);
- }
-
alpm_list_free(walked);
alpm_list_free(provisions);
- alpm_release();
+ alpm_release(handle);
}
/* pkg provides provision */
static void print_text(const char *pkg, const char *provision, int depth)
{
- int indent_sz = (depth + 1) * indent_size;
+ int indent_sz = (depth + 1) * style->indent;
if(!pkg && !provision) {
/* not much we can do */
@@ -199,17 +261,17 @@ static void print_text(const char *pkg, const char *provision, int depth)
if(!pkg && provision) {
/* we failed to resolve provision */
- printf("%s%*s%s%s%s%s%s\n", branch1_color, indent_sz, branch_tip1,
- leaf1_color, provision, branch1_color, unresolvable, color_off);
+ printf("%s%*s%s%s%s [unresolvable]%s\n", color->branch1, indent_sz,
+ style->tip1, color->leaf1, provision, color->branch1, color->off);
} else if(provision && strcmp(pkg, provision) != 0) {
/* pkg provides provision */
- printf("%s%*s%s%s%s%s %s%s%s\n", branch2_color, indent_sz, branch_tip2,
- leaf1_color, pkg, leaf2_color, provides, leaf1_color, provision,
- color_off);
+ printf("%s%*s%s%s%s%s %s%s%s\n", color->branch2, indent_sz, style->tip2,
+ color->leaf1, pkg, color->leaf2, style->provides, color->leaf1, provision,
+ color->off);
} else {
/* pkg is a normal package */
- printf("%s%*s%s%s%s\n", branch1_color, indent_sz, branch_tip1, leaf1_color,
- pkg, color_off);
+ printf("%s%*s%s%s%s\n", color->branch1, indent_sz, style->tip1, color->leaf1,
+ pkg, color->off);
}
}
@@ -255,19 +317,31 @@ static void print_end(void)
}
}
+static alpm_pkg_t *get_pkg_from_dbs(alpm_list_t *dbs, const char *needle) {
+ alpm_list_t *i;
+ alpm_pkg_t *ret;
+
+ for(i = dbs; i; i = alpm_list_next(i)) {
+ ret = alpm_db_get_pkg(alpm_list_getdata(i), needle);
+ if(ret) {
+ return ret;
+ }
+ }
+ return NULL;
+}
/**
* walk dependencies in reverse, showing packages which require the target
*/
-static void walk_reverse_deps(pmpkg_t *pkg, int depth)
+static void walk_reverse_deps(alpm_list_t *dblist, alpm_pkg_t *pkg, int depth)
{
alpm_list_t *required_by, *i;
- if((max_depth >= 0) && (depth == max_depth + 1)) {
+ if(!pkg || ((max_depth >= 0) && (depth == max_depth + 1))) {
return;
}
- walked = alpm_list_add(walked, (void*)alpm_pkg_get_name(pkg));
+ walked = alpm_list_add(walked, (void *)alpm_pkg_get_name(pkg));
required_by = alpm_pkg_compute_requiredby(pkg);
for(i = required_by; i; i = alpm_list_next(i)) {
@@ -281,7 +355,7 @@ static void walk_reverse_deps(pmpkg_t *pkg, int depth)
}
} else {
print(alpm_pkg_get_name(pkg), pkgname, NULL, depth);
- walk_reverse_deps(alpm_db_get_pkg(db_local, pkgname), depth + 1);
+ walk_reverse_deps(dblist, get_pkg_from_dbs(dblist, pkgname), depth + 1);
}
}
@@ -291,7 +365,7 @@ static void walk_reverse_deps(pmpkg_t *pkg, int depth)
/**
* walk dependencies, showing dependencies of the target
*/
-static void walk_deps(pmpkg_t *pkg, int depth)
+static void walk_deps(alpm_list_t *dblist, alpm_pkg_t *pkg, int depth)
{
alpm_list_t *i;
@@ -299,12 +373,11 @@ static void walk_deps(pmpkg_t *pkg, int depth)
return;
}
- walked = alpm_list_add(walked, (void*)alpm_pkg_get_name(pkg));
+ walked = alpm_list_add(walked, (void *)alpm_pkg_get_name(pkg));
for(i = alpm_pkg_get_depends(pkg); i; i = alpm_list_next(i)) {
- pmdepend_t *depend = alpm_list_getdata(i);
- pmpkg_t *provider = alpm_find_satisfier(alpm_db_get_pkgcache(db_local),
- alpm_dep_get_name(depend));
+ alpm_depend_t *depend = alpm_list_getdata(i);
+ alpm_pkg_t *provider = alpm_find_dbs_satisfier(handle, dblist, depend->name);
if(provider) {
const char *provname = alpm_pkg_get_name(provider);
@@ -313,41 +386,57 @@ static void walk_deps(pmpkg_t *pkg, int depth)
/* if we've already seen this package, don't print in "unique" output
* and don't recurse */
if(!unique) {
- print(alpm_pkg_get_name(pkg), provname, alpm_dep_get_name(depend), depth);
+ print(alpm_pkg_get_name(pkg), provname, depend->name, depth);
}
} else {
- print(alpm_pkg_get_name(pkg), provname, alpm_dep_get_name(depend), depth);
- walk_deps(provider, depth + 1);
+ print(alpm_pkg_get_name(pkg), provname, depend->name, depth);
+ walk_deps(dblist, provider, depth + 1);
}
} else {
/* unresolvable package */
- print(alpm_pkg_get_name(pkg), NULL, alpm_dep_get_name(depend), depth);
+ print(alpm_pkg_get_name(pkg), NULL, depend->name, depth);
}
}
}
int main(int argc, char *argv[])
{
- int ret;
+ int freelist = 0, ret = 0;
+ enum _alpm_errno_t err;
const char *target_name;
- pmpkg_t *pkg;
+ alpm_pkg_t *pkg;
+ alpm_list_t *dblist = NULL;
- ret = parse_options(argc, argv);
- if(ret != 0) {
+ if(parse_options(argc, argv) != 0) {
usage();
+ ret = 1;
goto finish;
}
- ret = alpm_local_init();
- if(ret != 0) {
- fprintf(stderr, "error: cannot initialize alpm: %s\n", alpm_strerrorlast());
+ handle = alpm_initialize(ROOTDIR, dbpath, &err);
+ if(!handle) {
+ fprintf(stderr, "error: cannot initialize alpm: %s\n",
+ alpm_strerror(err));
+ ret = 1;
goto finish;
}
+ if(searchsyncs) {
+ if(register_syncs() != 0) {
+ fprintf(stderr, "error: failed to register sync DBs\n");
+ ret = 1;
+ goto finish;
+ }
+ dblist = alpm_option_get_syncdbs(handle);
+ } else {
+ dblist = alpm_list_add(dblist, alpm_option_get_localdb(handle));
+ freelist = 1;
+ }
+
/* we only care about the first non option arg for walking */
target_name = argv[optind];
- pkg = alpm_find_satisfier(alpm_db_get_pkgcache(db_local), target_name);
+ pkg = alpm_find_dbs_satisfier(handle, dblist, target_name);
if(!pkg) {
fprintf(stderr, "error: package '%s' not found\n", target_name);
ret = 1;
@@ -357,16 +446,20 @@ int main(int argc, char *argv[])
print_start(alpm_pkg_get_name(pkg), target_name);
if(reverse) {
- walk_reverse_deps(pkg, 1);
+ walk_reverse_deps(dblist, pkg, 1);
} else {
- walk_deps(pkg, 1);
+ walk_deps(dblist, pkg, 1);
}
print_end();
+ if(freelist) {
+ alpm_list_free(dblist);
+ }
+
finish:
cleanup();
- return(ret);
+ return ret;
}
/* vim: set ts=2 sw=2 noet: */

Copyright © 2002-2022 Judd Vinet and Aaron Griffin. Copyright © 2022 Erich Eckner.
The Arch Linux name and logo are recognized trademarks. Some rights reserved. The registered trademark Linux® is used pursuant to a sublicense from LMI, the exclusive licensee of Linus Torvalds, owner of the mark on a world-wide basis.