From 767214e4f157ae4a74be0b557bd49e24d972970b Mon Sep 17 00:00:00 2001 From: Lukas Fleischer Date: Thu, 7 Jan 2016 18:23:09 +0100 Subject: Add pre-save and post-save hooks This adds support for hooks which are executed before/after saving calcurse data. Hooks can be placed under hooks/pre-save and hooks/post-save in the data directory and need to be executable. Potential use cases include: * Automatically commit any changes to the data files using a VCS. * Automatically sync with some sever component on data file changes. Signed-off-by: Lukas Fleischer --- src/Makefile.am | 1 + src/calcurse.h | 6 ++++++ src/hooks.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ src/io.c | 4 ++++ src/vars.c | 1 + 5 files changed, 75 insertions(+) create mode 100644 src/hooks.c diff --git a/src/Makefile.am b/src/Makefile.am index edb83d8..823f7c9 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -20,6 +20,7 @@ calcurse_SOURCES = \ event.c \ getstring.c \ help.c \ + hooks.c \ ical.c \ io.c \ keys.c \ diff --git a/src/calcurse.h b/src/calcurse.h index efbdb81..1ab5363 100644 --- a/src/calcurse.h +++ b/src/calcurse.h @@ -93,6 +93,7 @@ #define DPID_PATH_NAME ".daemon.pid" #define DLOG_PATH_NAME "daemon.log" #define NOTES_DIR_NAME "notes/" +#define HOOKS_DIR_NAME "hooks/" #define TODO_PATH DIR_NAME TODO_PATH_NAME #define APTS_PATH DIR_NAME APTS_PATH_NAME @@ -102,6 +103,7 @@ #define DLOG_PATH DIR_NAME DLOG_PATH_NAME #define DPID_PATH DIR_NAME DPID_PATH_NAME #define NOTES_DIR DIR_NAME NOTES_DIR_NAME +#define HOOKS_DIR DIR_NAME HOOKS_DIR_NAME #define DEFAULT_EDITOR "vi" #define DEFAULT_PAGER "less" @@ -779,6 +781,9 @@ int updatestring(WINDOW *, char **, int, int); /* help.c */ int display_help(const char *); +/* hooks.c */ +int run_hook(const char *); + /* ical.c */ void ical_import_data(FILE *, FILE *, unsigned *, unsigned *, unsigned *, unsigned *, unsigned *); @@ -1111,6 +1116,7 @@ extern char path_notes[BUFSIZ]; extern char path_cpid[BUFSIZ]; extern char path_dpid[BUFSIZ]; extern char path_dmon_log[BUFSIZ]; +extern char path_hooks[BUFSIZ]; extern struct conf conf; extern struct pad apad; extern struct nbar nbar; diff --git a/src/hooks.c b/src/hooks.c new file mode 100644 index 0000000..5fffb70 --- /dev/null +++ b/src/hooks.c @@ -0,0 +1,63 @@ +/* + * Calcurse - text-based organizer + * + * Copyright (c) 2004-2016 calcurse Development Team + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the + * following disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the + * following disclaimer in the documentation and/or other + * materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Send your feedback or comments to : misc@calcurse.org + * Calcurse home page : http://calcurse.org + * + */ + +#include + +#include "calcurse.h" + +int run_hook(const char *name) +{ + char *hook_path; + char const *arg[2]; + int pid, ret = -127; + + asprintf(&hook_path, "%s/%s", path_hooks, name); + arg[0] = hook_path; + arg[1] = NULL; + + if (!io_file_exists(hook_path)) + return 0; + + wins_prepare_external(); + if ((pid = shell_exec(NULL, NULL, *arg, arg))) { + ret = child_wait(NULL, NULL, pid); + if (ret) + press_any_key(); + } + wins_unprepare_external(); + + return ret; +} diff --git a/src/io.c b/src/io.c index f12bac9..7411a6b 100644 --- a/src/io.c +++ b/src/io.c @@ -239,6 +239,7 @@ void io_init(const char *cfile, const char *datadir) snprintf(path_dpid, BUFSIZ, "%s/" DPID_PATH_NAME, home); snprintf(path_dmon_log, BUFSIZ, "%s/" DLOG_PATH_NAME, home); + snprintf(path_hooks, BUFSIZ, "%s/" HOOKS_DIR_NAME, home); } else { home = getenv("HOME"); if (home == NULL) { @@ -252,6 +253,7 @@ void io_init(const char *cfile, const char *datadir) snprintf(path_dpid, BUFSIZ, "%s/" DPID_PATH, home); snprintf(path_dmon_log, BUFSIZ, "%s/" DLOG_PATH, home); snprintf(path_notes, BUFSIZ, "%s/" NOTES_DIR, home); + snprintf(path_hooks, BUFSIZ, "%s/" HOOKS_DIR, home); } if (cfile == NULL) { @@ -391,6 +393,7 @@ void io_save_cal(enum save_display display) if (read_only) return; + run_hook("pre-save"); pthread_mutex_lock(&io_save_mutex); show_bar = 0; @@ -428,6 +431,7 @@ void io_save_cal(enum save_display display) } pthread_mutex_unlock(&io_save_mutex); + run_hook("post-save"); } static void io_load_error(const char *filename, unsigned line, diff --git a/src/vars.c b/src/vars.c index f6fd685..d674393 100644 --- a/src/vars.c +++ b/src/vars.c @@ -111,6 +111,7 @@ char path_keys[] = ""; char path_cpid[] = ""; char path_dpid[] = ""; char path_dmon_log[] = ""; +char path_hooks[] = ""; /* Variable to store global configuration. */ struct conf conf; -- cgit v1.2.3