Code

3 files changed, 189 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..fb1fe46
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,33 @@
+VERSION = 0.1
+PREFIX = /usr/local
+CC = cc
+CPPFLAGS = -D_DEFAULT_SOURCE
+CFLAGS = --std=c99 -pedantic -Wall -Os
+LDFLAGS  = -s -static
+
+all: note
+
+note: note.c
+
+install: all
+	mkdir -p $(DESTDIR)$(PREFIX)/bin
+	cp -f note $(DESTDIR)$(PREFIX)/bin
+	chmod 755 $(DESTDIR)$(PREFIX)/bin/note
+
+uninstall:
+	rm -f $(DESTDIR)$(PREFIX)/bin/note
+
+clean:
+	rm -f note note-$(VERSION).tar.gz
+
+dist: clean
+	mkdir -p note-$(VERSION)
+	cp -R TODO Makefile config.h note.c note-$(VERSION)
+	tar -cf note-$(VERSION).tar note-$(VERSION)
+	gzip note-$(VERSION).tar
+	rm -rf note-$(VERSION)
+
+.c:
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -o $@ $<
+
+.PHONY: all install uninstall clean dist
diff --git a/config.h b/config.h
new file mode 100644
index 0000000..a558272
--- /dev/null
+++ b/config.h
@@ -0,0 +1,4 @@
+#define TIMEFORMAT "%Y/%m/%d, %H:%M"
+
+static const char *filepath = ".local/share/notes/notes.txt";
+static const char *dmenucmd = "printf '' | dmenu -p 'Enter note:'";
diff --git a/note.c b/note.c
new file mode 100644
index 0000000..3cca833
--- /dev/null
+++ b/note.c
@@ -0,0 +1,152 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "config.h"
+
+static void append(int, char *);
+static void last(char *);
+static void edit(char *);
+static void usage(void);
+
+void
+append(int d, char *fullpath)
+{
+	FILE *fp;
+	FILE *read;
+	char *line = NULL;
+	char timebuf[100];
+	size_t len = 0;
+	time_t t;
+
+	switch(d) {
+	case 0:
+		fputs("Enter note: ", stdout);
+		if (getline(&line, &len, stdin) <= 1) {
+			puts("\nNothing entered, exiting.");
+			free(line);
+			exit(0);
+		}
+		break;
+	case 1:
+		if (!(read = popen(dmenucmd, "r"))) {
+			perror("popen");
+			exit(1);
+		} else if (getline(&line, &len, read) <= 1) {
+			pclose(read);
+			free(line);
+			exit(0);
+		} else if (pclose(read) < 0) {
+			perror("pclose");
+			exit(1);
+		}
+		break;
+	default: abort();
+	}
+
+	if (!(fp = fopen(fullpath, "a"))) {
+		perror("fopen");
+		exit(1);
+	}
+
+	t = time(NULL);
+	if (!strftime(timebuf, sizeof(timebuf), TIMEFORMAT, localtime(&t))) {
+		fputs("strftime: result string exceeds buffer size\n", stderr);
+		exit(1);
+	}
+
+	fprintf(fp, "[%s] %s\n", timebuf, line);
+
+	free(line);
+	fclose(fp);
+}
+
+void
+last(char *fullpath)
+{
+	FILE *fp;
+	int count = 0;
+	long int pos;
+	char s[100];
+
+	if (!(fp = fopen(fullpath, "r"))) {
+		perror("fopen");
+		exit(1);
+	}
+
+	fseek(fp, 0, SEEK_END);
+	pos = ftell(fp);
+
+	while (1) {
+		fseek(fp, --pos, SEEK_SET);
+		if (!pos)
+			break;
+		else if ((fgetc(fp) == '\n') && (count++ == 20))
+			break;
+	}
+
+	while (fgets(s, sizeof(s), fp) != NULL) {
+		printf("%s", s);
+	}
+
+	fclose(fp);
+}
+
+void
+edit(char *fullpath)
+{
+	char *editor;
+
+	if ((editor = getenv("EDITOR")) == NULL) {
+		editor = "vi";
+	}
+
+	char *cmd[] = { editor, fullpath, NULL };
+	execvp(cmd[0], cmd);
+}
+
+void
+usage(void)
+{
+	fputs("usage: note [option]\n"
+		"  -a    append to the main file\n"
+		"  -d    append using dmenu\n"
+		"  -s    show last 10 notes\n"
+		"  -e    edit the main file\n", stderr);
+	exit(1);
+}
+
+int
+main(int argc, char *argv[])
+{
+	int opt;
+	char fullpath[100];
+
+	if (argc != 2) {
+		usage();
+	}
+
+	snprintf(fullpath, sizeof(fullpath), "%s/%s", getenv("HOME"), filepath);
+
+	while ((opt = getopt(argc, argv, "adse")) != -1) {
+		switch (opt) {
+		case 'a':
+			append(0, fullpath);
+			break;
+		case 'd':
+			append(1, fullpath);
+			break;
+		case 's':
+			last(fullpath);
+			break;
+		case 'e':
+			edit(fullpath);
+			break;
+		default:
+			usage();
+		}
+	}
+
+	return 0;
+}