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Added history mgmt functions.

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This commit is contained in:
Martin Dvorak 2013-12-15 15:49:07 +01:00
parent 0e564239a8
commit a994222f43
2 changed files with 35 additions and 11 deletions
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1
README.md
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@ -20,6 +20,7 @@ INSTALLATION
* add
`shopt -s histappend`
`export PROMPT_COMMAND="history -a; history -n; ${PROMPT_COMMAND}"`
at the end of `.bashrc` in order to ensure that BASH history of commands

45
src/hstr_history.c
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@ -11,6 +11,9 @@
#include "include/hashset.h"
#include "include/hashmap.h"
#include "include/radixsort.h"
#include <stdbool.h>
#include "include/hstr_utils.h"
#define NDEBUG
#include <assert.h>
@ -22,18 +25,21 @@ typedef struct {
static HistoryItems *history;
static HistoryItems *prioritizedHistory;
static bool dirty;
unsigned history_ranking_function(unsigned rank, unsigned newOccurenceOrder, unsigned lng) {
rank+=newOccurenceOrder/10 + lng;
return rank;
}
char *get_history_file() {
char *home = getenv(ENV_VAR_HOME);
char *fileName = (char*) malloc(
strlen(home) + 1 + strlen(FILE_HISTORY) + 1);
strcat(strcat(strcpy(fileName, home), "/"), FILE_HISTORY);
return fileName;
char *get_history_file_name() {
char *historyFile=getenv(ENV_VAR_HISTFILE);
if(!historyFile || strlen(historyFile)==0) {
char *home = getenv(ENV_VAR_HOME);
historyFile = (char*) malloc(strlen(home) + 1 + strlen(FILE_HISTORY) + 1);
strcat(strcat(strcpy(historyFile, home), "/"), FILE_HISTORY);
}
return historyFile;
}
void dump_prioritized_history(HistoryItems *ph) {
@ -120,11 +126,7 @@ HistoryItems *get_history_items() {
using_history();
char *historyFile = getenv(ENV_VAR_HISTFILE);
if(!historyFile || strlen(historyFile)==0) {
historyFile=get_history_file();
}
char *historyFile = get_history_file_name();
if(read_history(historyFile)!=0) {
fprintf(stderr, "\nUnable to read history file from '%s'!\n",historyFile);
exit(EXIT_FAILURE);
@ -167,4 +169,25 @@ HistoryItems *get_prioritized_history() {
return prioritize_history(fileItems);
}
void history_mgmt_open() {
dirty=false;
}
void history_mgmt_remove(char *cmd) {
get_history_items();
int offset=history_search_pos(cmd, 0, 0);
while(offset>=0) {
free_history_entry(remove_history(offset));
offset=history_search_pos(cmd, 0, ++offset);
}
write_history(get_history_file_name());
dirty=true;
}
void history_mgmt_close() {
if(dirty) {
fill_terminal_input("history -r\n");
}
}