diff options
| -rw-r--r-- | src/wgtpkg-unit.c | 126 | ||||
| -rw-r--r-- | src/wgtpkg-unit.h | 4 |
2 files changed, 129 insertions, 1 deletions
diff --git a/src/wgtpkg-unit.c b/src/wgtpkg-unit.c index 26cf324..93cfe64 100644 --- a/src/wgtpkg-unit.c +++ b/src/wgtpkg-unit.c @@ -25,13 +25,23 @@ #include <unistd.h> #include <string.h> #include <errno.h> +#include <limits.h> + +#include <json-c/json.h> #include "verbose.h" #include "utils-file.h" #include "wgtpkg-mustach.h" +#include "utils-json.h" +#include "wgt-json.h" + #include "wgtpkg-unit.h" +#if !defined(SYSTEMD_UNITS_ROOT) +# define SYSTEMD_UNITS_ROOT "/usr/local/lib/systemd" +#endif + #if 0 #include <ctype.h> #else @@ -299,7 +309,7 @@ void unit_generator_off() } /* - * Initialises the unit generator with 'filename'. + * Initialises the unit generator with the content of the file of path 'filename'. * Returns 0 in case of success or a negative number in case of error. */ int unit_generator_on(const char *filename) @@ -345,3 +355,117 @@ int unit_generator_process(struct json_object *jdesc, int (*process)(void *closu return rc; } +/**************** SPECIALIZED PART *****************************/ + + +static int get_unit_path(char *path, size_t pathlen, const struct unitdesc *desc) +{ + int rc; + + if (desc->scope == unitscope_unknown || desc->type == unittype_unknown || desc->name == NULL) { + if (desc->scope == unitscope_unknown) + ERROR("unit of unknown scope"); + if (desc->type == unittype_unknown) + ERROR("unit of unknown type"); + if (desc->name == NULL) + ERROR("unit of unknown name"); + errno = EINVAL; + rc = -1; + } + else { + rc = snprintf(path, pathlen, "%s/%s/%s.%s", + SYSTEMD_UNITS_ROOT, + desc->scope == unitscope_system ? "system" : "user", + desc->name, + desc->type == unittype_socket ? "socket" : "service"); + + if (rc >= 0 && (size_t)rc >= pathlen) { + ERROR("can't set the unit name"); + errno = EINVAL; + rc = -1; + } + } + return rc; +} + +static int do_install_units(void *closure, const struct unitdesc descs[], unsigned count) +{ + int rc; + unsigned i; + char path[PATH_MAX + 1]; + + for (i = 0 ; i < count ; i++) { + rc = get_unit_path(path, sizeof path, &descs[i]); + if (rc >= 0) { + rc = putfile(path, descs[i].content, descs[i].content_length); + } + } + return 0; +} + +static int do_uninstall_units(void *closure, const struct unitdesc descs[], unsigned count) +{ + int rc; + unsigned i; + char path[PATH_MAX]; + + for (i = 0 ; i < count ; i++) { + rc = get_unit_path(path, sizeof path, &descs[i]); + if (rc >= 0) { + rc = unlink(path); + } + } + return 0; +} + +static int add_metadata(struct json_object *jdesc, const char *installdir, const char *icondir, int port) +{ + char portstr[30]; + + sprintf(portstr, "%d", port); + return j_add_many_strings_m(jdesc, + "#metadata.install-dir", installdir, + "#metadata.app-data-dir", "%h/app-data", + "#metadata.icons-dir", icondir, + "#metadata.http-port", portstr, + NULL) ? 0 : -1; +} + +static int do_install_uninstall( + struct wgt_info *ifo, + const char *installdir, + const char *icondir, + int port, + int (*doer)(void *, const struct unitdesc[], unsigned) +) +{ + int rc; + struct json_object *jdesc; + + jdesc = wgt_info_to_json(ifo); + if (!jdesc) + rc = -1; + else { + rc = add_metadata(jdesc, installdir, icondir, port); + if (rc) + ERROR("can't set the metadata. %m"); + else { + rc = unit_generator_process(jdesc, doer, NULL); + if (rc) + ERROR("can't install units, error %d", rc); + } + json_object_put(jdesc); + } + return rc; +} + +int unit_install(struct wgt_info *ifo, const char *installdir, const char *icondir, int port) +{ + return do_install_uninstall(ifo, installdir, icondir, port, do_install_units); +} + +int unit_uninstall(struct wgt_info *ifo) +{ + return do_install_uninstall(ifo, "", "", 0, do_uninstall_units); +} + diff --git a/src/wgtpkg-unit.h b/src/wgtpkg-unit.h index 4843685..1d56eb3 100644 --- a/src/wgtpkg-unit.h +++ b/src/wgtpkg-unit.h @@ -18,6 +18,7 @@ struct json_object; +struct wgt_info; enum unitscope { unitscope_unknown = 0, @@ -43,3 +44,6 @@ struct unitdesc { extern int unit_generator_on(const char *filename); extern void unit_generator_off(); extern int unit_generator_process(struct json_object *jdesc, int (*process)(void *closure, const struct unitdesc descs[], unsigned count), void *closure); +extern int unit_install(struct wgt_info *ifo, const char *installdir, const char *icondir, int port); +extern int unit_uninstall(struct wgt_info *ifo); + |