diff options
| -rw-r--r-- | Documentation/core-git.txt | 27 | ||||
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | README | 2 | ||||
| -rw-r--r-- | cache.h | 15 | ||||
| -rw-r--r-- | commit-tree.c | 10 | ||||
| -rw-r--r-- | diff.c | 10 | ||||
| -rwxr-xr-x | git-prune-script | 8 | ||||
| -rw-r--r-- | gitenv.c | 75 | ||||
| -rw-r--r-- | init-db.c | 7 | ||||
| -rw-r--r-- | rsh.c | 4 | ||||
| -rw-r--r-- | sha1_file.c | 8 |
11 files changed, 130 insertions, 39 deletions
diff --git a/Documentation/core-git.txt b/Documentation/core-git.txt index 09a70f2..4c80c7e 100644 --- a/Documentation/core-git.txt +++ b/Documentation/core-git.txt @@ -210,15 +210,16 @@ Environment Variables --------------------- Various git commands use the following environment variables: -- 'AUTHOR_NAME' -- 'AUTHOR_EMAIL' -- 'AUTHOR_DATE' -- 'COMMIT_AUTHOR_NAME' -- 'COMMIT_AUTHOR_EMAIL' +- 'GIT_AUTHOR_NAME' +- 'GIT_AUTHOR_EMAIL' +- 'GIT_AUTHOR_DATE' +- 'GIT_COMMITTER_NAME' +- 'GIT_COMMITTER_EMAIL' - 'GIT_DIFF_OPTS' - 'GIT_EXTERNAL_DIFF' - 'GIT_INDEX_FILE' -- 'SHA1_FILE_DIRECTORY' +- 'GIT_OBJECT_DIRECTORY' +- 'GIT_ALTERNATE_OBJECT_DIRECTORIES' NAME @@ -439,11 +440,11 @@ If not provided, "git-commit-tree" uses your name, hostname and domain to provide author and committer info. This can be overridden using the following environment variables. - AUTHOR_NAME - AUTHOR_EMAIL - AUTHOR_DATE - COMMIT_AUTHOR_NAME - COMMIT_AUTHOR_EMAIL + GIT_AUTHOR_NAME + GIT_AUTHOR_EMAIL + GIT_AUTHOR_DATE + GIT_COMMITTER_NAME + GIT_COMMITTER_EMAIL (nb <,> and '\n's are stripped) @@ -876,7 +877,7 @@ sha1 mismatch <object>:: Environment Variables --------------------- -SHA1_FILE_DIRECTORY:: +GIT_OBJECT_DIRECTORY:: used to specify the object database root (usually .git/objects) GIT_INDEX_FILE:: @@ -918,7 +919,7 @@ DESCRIPTION This simply creates an empty git object database - basically a `.git` directory and `.git/object/??/` directories. -If the object storage directory is specified via the 'SHA1_FILE_DIRECTORY' +If the object storage directory is specified via the 'GIT_OBJECT_DIRECTORY' environment variable then the sha1 directories are created underneath - otherwise the default `.git/objects` directory is used. @@ -46,6 +46,8 @@ LIB_OBJS += strbuf.o LIB_H += diff.h LIB_OBJS += diff.o +LIB_OBJS += gitenv.o + LIBS = $(LIB_FILE) LIBS += -lz @@ -116,6 +118,7 @@ sha1_file.o: $(LIB_H) usage.o: $(LIB_H) diff.o: $(LIB_H) strbuf.o: $(LIB_H) +gitenv.o: $(LIB_H) clean: rm -f *.o mozilla-sha1/*.o ppc/*.o $(PROG) $(LIB_FILE) @@ -24,7 +24,7 @@ There are two object abstractions: the "object database", and the - The Object Database (SHA1_FILE_DIRECTORY) + The Object Database (GIT_OBJECT_DIRECTORY) The object database is literally just a content-addressable collection @@ -31,6 +31,13 @@ #endif /* + * Environment variables transition. + * We accept older names for now but warn. + */ +extern char *gitenv_bc(const char *); +#define gitenv(e) (getenv(e) ? : gitenv_bc(e)) + +/* * Basic data structures for the directory cache * * NOTE NOTE NOTE! This is all in the native CPU byte format. It's @@ -99,16 +106,16 @@ static inline unsigned int create_ce_mode(unsigned int mode) struct cache_entry **active_cache; unsigned int active_nr, active_alloc, active_cache_changed; -#define DB_ENVIRONMENT "SHA1_FILE_DIRECTORY" +#define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY" #define DEFAULT_DB_ENVIRONMENT ".git/objects" -#define ALTERNATE_DB_ENVIRONMENT "SHA1_FILE_DIRECTORIES" +#define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" -#define get_object_directory() (getenv(DB_ENVIRONMENT) ? : DEFAULT_DB_ENVIRONMENT) +#define get_object_directory() (gitenv(DB_ENVIRONMENT) ? : DEFAULT_DB_ENVIRONMENT) #define INDEX_ENVIRONMENT "GIT_INDEX_FILE" #define DEFAULT_INDEX_ENVIRONMENT ".git/index" -#define get_index_file() (getenv(INDEX_ENVIRONMENT) ? : DEFAULT_INDEX_ENVIRONMENT) +#define get_index_file() (gitenv(INDEX_ENVIRONMENT) ? : DEFAULT_INDEX_ENVIRONMENT) #define alloc_nr(x) (((x)+16)*3/2) diff --git a/commit-tree.c b/commit-tree.c index cfd6730..b8dd36f 100644 --- a/commit-tree.c +++ b/commit-tree.c @@ -146,11 +146,11 @@ int main(int argc, char **argv) datestamp(realdate, sizeof(realdate)); strcpy(date, realdate); - commitgecos = getenv("COMMIT_AUTHOR_NAME") ? : realgecos; - commitemail = getenv("COMMIT_AUTHOR_EMAIL") ? : realemail; - gecos = getenv("AUTHOR_NAME") ? : realgecos; - email = getenv("AUTHOR_EMAIL") ? : realemail; - audate = getenv("AUTHOR_DATE"); + commitgecos = gitenv("GIT_COMMITTER_NAME") ? : realgecos; + commitemail = gitenv("GIT_COMMITTER_EMAIL") ? : realemail; + gecos = gitenv("GIT_AUTHOR_NAME") ? : realgecos; + email = gitenv("GIT_AUTHOR_EMAIL") ? : realemail; + audate = gitenv("GIT_AUTHOR_DATE"); if (audate) parse_date(audate, date, sizeof(date)); @@ -8,11 +8,11 @@ #include "cache.h" #include "diff.h" -static char *diff_opts = "-pu"; +static const char *diff_opts = "-pu"; static const char *external_diff(void) { - static char *external_diff_cmd = NULL; + static const char *external_diff_cmd = NULL; static int done_preparing = 0; if (done_preparing) @@ -26,11 +26,11 @@ static const char *external_diff(void) * * GIT_DIFF_OPTS="-c"; */ - if (getenv("GIT_EXTERNAL_DIFF")) - external_diff_cmd = getenv("GIT_EXTERNAL_DIFF"); + if (gitenv("GIT_EXTERNAL_DIFF")) + external_diff_cmd = gitenv("GIT_EXTERNAL_DIFF"); /* In case external diff fails... */ - diff_opts = getenv("GIT_DIFF_OPTS") ? : diff_opts; + diff_opts = gitenv("GIT_DIFF_OPTS") ? : diff_opts; done_preparing = 1; return external_diff_cmd; diff --git a/git-prune-script b/git-prune-script index 9ba89a5..c0ffb1d 100755 --- a/git-prune-script +++ b/git-prune-script @@ -28,9 +28,13 @@ sed -ne '/unreachable /{ s/unreachable [^ ][^ ]* // s|\(..\)|\1/|p }' | { - case "$SHA1_FILE_DIRECTORY" in + for d in "$GIT_OBJECT_DIRECTORY" "$SHA1_FILE_DIRECTORY" '' + do + test "$d" != "" && test -d "$d" && break + done + case "$d" in '') cd .git/objects/ ;; - *) cd "$SHA1_FILE_DIRECTORY" ;; + *) cd "$d" ;; esac || exit xargs -r $dryrun rm -f } diff --git a/gitenv.c b/gitenv.c new file mode 100644 index 0000000..ab9396f --- /dev/null +++ b/gitenv.c @@ -0,0 +1,75 @@ +/* + * Copyright (C) 2005 Junio C Hamano + */ +#include "cache.h" + +/* + * This array must be sorted by its canonical name, because + * we do look-up by binary search. + */ +static struct backward_compatible_env { + const char *canonical; + const char *old; +} bc_name[] = { + { "GIT_ALTERNATE_OBJECT_DIRECTORIES", "SHA1_FILE_DIRECTORIES" }, + { "GIT_AUTHOR_DATE", "AUTHOR_DATE" }, + { "GIT_AUTHOR_EMAIL", "AUTHOR_EMAIL" }, + { "GIT_AUTHOR_NAME", "AUTHOR_NAME" }, + { "GIT_COMMITTER_EMAIL", "COMMIT_AUTHOR_EMAIL" }, + { "GIT_COMMITTER_NAME", "COMMIT_AUTHOR_NAME" }, + { "GIT_OBJECT_DIRECTORY", "SHA1_FILE_DIRECTORY" }, +}; + +static void warn_old_environment(int pos) +{ + int i; + static int warned = 0; + if (warned) + return; + + warned = 1; + fprintf(stderr, + "warning: Attempting to use %s\n", + bc_name[pos].old); + fprintf(stderr, + "warning: GIT environment variables have been renamed.\n" + "warning: Please adjust your scripts and environment.\n"); + for (i = 0; i < sizeof(bc_name) / sizeof(bc_name[0]); i++) { + /* warning is needed only when old name is there and + * new name is not. + */ + if (!getenv(bc_name[i].canonical) && getenv(bc_name[i].old)) + fprintf(stderr, "warning: old %s => new %s\n", + bc_name[i].old, bc_name[i].canonical); + } +} + +char *gitenv_bc(const char *e) +{ + int first, last; + char *val = getenv(e); + if (val) + die("gitenv_bc called on existing %s; fix the caller.", e); + + first = 0; + last = sizeof(bc_name) / sizeof(bc_name[0]); + while (last > first) { + int next = (last + first) >> 1; + int cmp = strcmp(e, bc_name[next].canonical); + if (!cmp) { + val = getenv(bc_name[next].old); + /* If the user has only old name, warn. + * otherwise stay silent. + */ + if (val) + warn_old_environment(next); + return val; + } + if (cmp < 0) { + last = next; + continue; + } + first = next+1; + } + return NULL; +} @@ -5,7 +5,7 @@ */ #include "cache.h" -void safe_create_dir(char *dir) +void safe_create_dir(const char *dir) { if (mkdir(dir, 0755) < 0) { if (errno != EEXIST) { @@ -23,12 +23,13 @@ void safe_create_dir(char *dir) */ int main(int argc, char **argv) { - char *sha1_dir, *path; + const char *sha1_dir; + char *path; int len, i; safe_create_dir(".git"); - sha1_dir = getenv(DB_ENVIRONMENT); + sha1_dir = gitenv(DB_ENVIRONMENT); if (!sha1_dir) { sha1_dir = DEFAULT_DB_ENVIRONMENT; fprintf(stderr, "defaulting to local storage area\n"); @@ -36,8 +36,8 @@ int setup_connection(int *fd_in, int *fd_out, char *remote_prog, *(path++) = '\0'; /* ssh <host> 'cd /<path>; stdio-pull <arg...> <commit-id>' */ snprintf(command, COMMAND_SIZE, - "cd /%s; SHA1_FILE_DIRECTORY=objects %s", - path, remote_prog); + "cd /%s; %s=objects %s", + path, DB_ENVIRONMENT, remote_prog); posn = command + strlen(command); for (i = 0; i < rmt_argc; i++) { *(posn++) = ' '; diff --git a/sha1_file.c b/sha1_file.c index 549d45a..430f5fd 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -120,7 +120,7 @@ static void fill_sha1_path(char *pathbuf, const unsigned char *sha1) * * Also note that this returns the location for creating. Reading * SHA1 file can happen from any alternate directory listed in the - * SHA1_FILE_DIRECTORIES environment variable if it is not found in + * DB_ENVIRONMENT environment variable if it is not found in * the primary object database. */ char *sha1_file_name(const unsigned char *sha1) @@ -128,7 +128,7 @@ char *sha1_file_name(const unsigned char *sha1) static char *name, *base; if (!base) { - char *sha1_file_directory = get_object_directory(); + const char *sha1_file_directory = get_object_directory(); int len = strlen(sha1_file_directory); base = xmalloc(len + 60); memcpy(base, sha1_file_directory, len); @@ -151,7 +151,7 @@ static struct alternate_object_database { * alt_odb points at an array of struct alternate_object_database. * This array is terminated with an element that has both its base * and name set to NULL. alt_odb[n] comes from n'th non-empty - * element from colon separated $SHA1_FILE_DIRECTORIES environment + * element from colon separated ALTERNATE_DB_ENVIRONMENT environment * variable, and its base points at a statically allocated buffer * that contains "/the/directory/corresponding/to/.git/objects/...", * while its name points just after the slash at the end of @@ -167,7 +167,7 @@ static void prepare_alt_odb(void) int pass, totlen, i; const char *cp, *last; char *op = 0; - const char *alt = getenv(ALTERNATE_DB_ENVIRONMENT) ? : ""; + const char *alt = gitenv(ALTERNATE_DB_ENVIRONMENT) ? : ""; /* The first pass counts how large an area to allocate to * hold the entire alt_odb structure, including array of |