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CGIT_VERSION = v0.9.1
CGIT_SCRIPT_NAME = cgit.cgi
CGIT_SCRIPT_PATH = /var/www/htdocs/cgit
CGIT_DATA_PATH = $(CGIT_SCRIPT_PATH)
CGIT_CONFIG = /etc/cgitrc
CACHE_ROOT = /var/cache/cgit
prefix = /usr
libdir = $(prefix)/lib
filterdir = $(libdir)/cgit/filters
docdir = $(prefix)/share/doc/cgit
htmldir = $(docdir)
pdfdir = $(docdir)
mandir = $(prefix)/share/man
SHA1_HEADER = <openssl/sha.h>
GIT_VER = 1.7.4
GIT_URL = https://github.com/git/git/archive/v$(GIT_VER).tar.gz
INSTALL = install
MAN5_TXT = $(wildcard *.5.txt)
MAN_TXT  = $(MAN5_TXT)
DOC_MAN5 = $(patsubst %.txt,%,$(MAN5_TXT))
DOC_HTML = $(patsubst %.txt,%.html,$(MAN_TXT))
DOC_PDF  = $(patsubst %.txt,%.pdf,$(MAN_TXT))

# Define NO_STRCASESTR if you don't have strcasestr.
#
# Define NO_OPENSSL to disable linking with OpenSSL and use bundled SHA1
# implementation (slower).
#
# Define NEEDS_LIBICONV if linking with libc is not enough (eg. Darwin).
#
# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
# do not support the 'size specifiers' introduced by C99, namely ll, hh,
# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
# some C compilers supported these specifiers prior to C99 as an extension.
#

#-include config.mak

#
# Platform specific tweaks
#

uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
uname_O := $(shell sh -c 'uname -o 2>/dev/null || echo not')
uname_R := $(shell sh -c 'uname -r 2>/dev/null || echo not')

ifeq ($(uname_O),Cygwin)
	NO_STRCASESTR = YesPlease
	NEEDS_LIBICONV = YesPlease
endif

ifeq ($(uname_S),$(filter $(uname_S),FreeBSD OpenBSD))
	# Apparantly libiconv is installed in /usr/local on BSD
	LDFLAGS ?= -L/usr/local/lib
	CFLAGS ?= -I/usr/local/include
	NEEDS_LIBICONV = yes
endif

#
# Let the user override the above settings.
#
-include cgit.conf

#
# Define a way to invoke make in subdirs quietly, shamelessly ripped
# from git.git
#
QUIET_SUBDIR0  = +$(MAKE) -C # space to separate -C and subdir
QUIET_SUBDIR1  =

ifneq ($(findstring $(MAKEFLAGS),w),w)
PRINT_DIR = --no-print-directory
else # "make -w"
NO_SUBDIR = :
endif

ifndef V
	QUIET_CC       = @echo '   ' CC $@;
	QUIET_MM       = @echo '   ' MM $@;
	QUIET_SUBDIR0  = +@subdir=
	QUIET_SUBDIR1  = ;$(NO_SUBDIR) echo '   ' SUBDIR $$subdir; \
			 $(MAKE) $(PRINT_DIR) -C $$subdir
	QUIET_TAGS     = @echo '   ' TAGS $@;
endif

#
# Define a pattern rule for automatic dependency building
#
%.d: %.c
	$(QUIET_MM)$(CC) $(CFLAGS) -MM -MP $< | sed -e 's/\($*\)\.o:/\1.o $@:/g' >$@

#
# Define a pattern rule for silent object building
#
%.o: %.c
	$(QUIET_CC)$(CC) -o $*.o -c $(CFLAGS) $<


EXTLIBS = git/libgit.a git/xdiff/lib.a -lz -lpthread
OBJECTS =
OBJECTS += cache.o
OBJECTS += cgit.o
OBJECTS += cmd.o
OBJECTS += configfile.o
OBJECTS += html.o
OBJECTS += parsing.o
OBJECTS += scan-tree.o
OBJECTS += shared.o
OBJECTS += ui-atom.o
OBJECTS += ui-blob.o
OBJECTS += ui-clone.o
OBJECTS += ui-commit.o
OBJECTS += ui-diff.o
OBJECTS += ui-log.o
OBJECTS += ui-patch.o
OBJECTS += ui-plain.o
OBJECTS += ui-refs.o
OBJECTS += ui-repolist.o
OBJECTS += ui-shared.o
OBJECTS += ui-snapshot.o
OBJECTS += ui-ssdiff.o
OBJECTS += ui-stats.o
OBJECTS += ui-summary.o
OBJECTS += ui-tag.o
OBJECTS += ui-tree.o
OBJECTS += vector.o

ifdef NEEDS_LIBICONV
	EXTLIBS += -liconv
endif


.PHONY: all libgit test install uninstall clean force-version get-git \
	doc clean-doc install-doc install-man install-html install-pdf \
	uninstall-doc uninstall-man uninstall-html uninstall-pdf tags

all: cgit

VERSION: force-version
	@./gen-version.sh "$(CGIT_VERSION)"
-include VERSION


CFLAGS += -g -Wall -Igit
CFLAGS += -DSHA1_HEADER='$(SHA1_HEADER)'
CFLAGS += -DCGIT_VERSION='"$(CGIT_VERSION)"'
CFLAGS += -DCGIT_CONFIG='"$(CGIT_CONFIG)"'
CFLAGS += -DCGIT_SCRIPT_NAME='"$(CGIT_SCRIPT_NAME)"'
CFLAGS += -DCGIT_CACHE_ROOT='"$(CACHE_ROOT)"'

GIT_OPTIONS = prefix=/usr

ifdef NO_ICONV
	CFLAGS += -DNO_ICONV
endif
ifdef NO_STRCASESTR
	CFLAGS += -DNO_STRCASESTR
endif
ifdef NO_C99_FORMAT
	CFLAGS += -DNO_C99_FORMAT
endif
ifdef NO_OPENSSL
	CFLAGS += -DNO_OPENSSL
	GIT_OPTIONS += NO_OPENSSL=1
else
	EXTLIBS += -lcrypto
endif

cgit: $(OBJECTS) libgit
	$(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o cgit $(OBJECTS) $(EXTLIBS)

cgit.o: VERSION

ifneq "$(MAKECMDGOALS)" "clean"
  -include $(OBJECTS:.o=.d)
endif

libgit:
	$(QUIET_SUBDIR0)git $(QUIET_SUBDIR1) NO_CURL=1 $(GIT_OPTIONS) libgit.a
	$(QUIET_SUBDIR0)git $(QUIET_SUBDIR1) NO_CURL=1 $(GIT_OPTIONS) xdiff/lib.a

test: all
	$(QUIET_SUBDIR0)tests $(QUIET_SUBDIR1) all

install: all
	$(INSTALL) -m 0755 -d $(DESTDIR)$(CGIT_SCRIPT_PATH)
	$(INSTALL) -m 0755 cgit $(DESTDIR)$(CGIT_SCRIPT_PATH)/$(CGIT_SCRIPT_NAME)
	$(INSTALL) -m 0755 -d $(DESTDIR)$(CGIT_DATA_PATH)
	$(INSTALL) -m 0644 cgit.css $(DESTDIR)$(CGIT_DATA_PATH)/cgit.css
	$(INSTALL) -m 0644 cgit.png $(DESTDIR)$(CGIT_DATA_PATH)/cgit.png
	$(INSTALL) -m 0755 -d $(DESTDIR)$(filterdir)
	$(INSTALL) -m 0755 filters/* $(DESTDIR)$(filterdir)

install-doc: install-man install-html install-pdf

install-man: doc-man
	$(INSTALL) -m 0755 -d $(DESTDIR)$(mandir)/man5
	$(INSTALL) -m 0644 $(DOC_MAN5) $(DESTDIR)$(mandir)/man5

install-html: doc-html
	$(INSTALL) -m 0755 -d $(DESTDIR)$(htmldir)
	$(INSTALL) -m 0644 $(DOC_HTML) $(DESTDIR)$(htmldir)

install-pdf: doc-pdf
	$(INSTALL) -m 0755 -d $(DESTDIR)$(pdfdir)
	$(INSTALL) -m 0644 $(DOC_PDF) $(DESTDIR)$(pdfdir)

uninstall:
	rm -f $(DESTDIR)$(CGIT_SCRIPT_PATH)/$(CGIT_SCRIPT_NAME)
	rm -f $(DESTDIR)$(CGIT_DATA_PATH)/cgit.css
	rm -f $(DESTDIR)$(CGIT_DATA_PATH)/cgit.png

uninstall-doc: uninstall-man uninstall-html uninstall-pdf

uninstall-man:
	@for i in $(DOC_MAN5); do \
	    rm -fv $(DESTDIR)$(mandir)/man5/$$i; \
	done

uninstall-html:
	@for i in $(DOC_HTML); do \
	    rm -fv $(DESTDIR)$(htmldir)/$$i; \
	done

uninstall-pdf:
	@for i in $(DOC_PDF); do \
	    rm -fv $(DESTDIR)$(pdfdir)/$$i; \
	done

doc: doc-man doc-html doc-pdf
doc-man: doc-man5
doc-man5: $(DOC_MAN5)
doc-html: $(DOC_HTML)
doc-pdf: $(DOC_PDF)

%.5 : %.5.txt
	a2x -f manpage $<

$(DOC_HTML): %.html : %.txt
	a2x -f xhtml --stylesheet=cgit-doc.css $<

$(DOC_PDF): %.pdf : %.txt
	a2x -f pdf cgitrc.5.txt

clean: clean-doc
	rm -f cgit VERSION *.o *.d tags

clean-doc:
	rm -f cgitrc.5 cgitrc.5.html cgitrc.5.pdf cgitrc.5.xml cgitrc.5.fo

get-git:
	curl -L $(GIT_URL) | tar -xzf - && rm -rf git && mv git-$(GIT_VER) git

tags:
	$(QUIET_TAGS)find . -name '*.[ch]' | xargs ctags
n class="w"> == NULL) return NULL; len = strlen(str); while (len > 0 && str[len - 1] == c) len--; if (len == 0) return NULL; return xstrndup(str, len); } char *ensure_end(const char *str, char c) { size_t len = strlen(str); char *result; if (len && str[len - 1] == c) return xstrndup(str, len); result = xmalloc(len + 2); memcpy(result, str, len); result[len] = '/'; result[len + 1] = '\0'; return result; } void strbuf_ensure_end(struct strbuf *sb, char c) { if (!sb->len || sb->buf[sb->len - 1] != c) strbuf_addch(sb, c); } char *strlpart(char *txt, int maxlen) { char *result; if (!txt) return txt; if (strlen(txt) <= maxlen) return txt; result = xmalloc(maxlen + 1); memcpy(result, txt, maxlen - 3); result[maxlen-1] = result[maxlen-2] = result[maxlen-3] = '.'; result[maxlen] = '\0'; return result; } char *strrpart(char *txt, int maxlen) { char *result; if (!txt) return txt; if (strlen(txt) <= maxlen) return txt; result = xmalloc(maxlen + 1); memcpy(result + 3, txt + strlen(txt) - maxlen + 4, maxlen - 3); result[0] = result[1] = result[2] = '.'; return result; } void cgit_add_ref(struct reflist *list, struct refinfo *ref) { size_t size; if (list->count >= list->alloc) { list->alloc += (list->alloc ? list->alloc : 4); size = list->alloc * sizeof(struct refinfo *); list->refs = xrealloc(list->refs, size); } list->refs[list->count++] = ref; } static struct refinfo *cgit_mk_refinfo(const char *refname, const unsigned char *sha1) { struct refinfo *ref; ref = xmalloc(sizeof (struct refinfo)); ref->refname = xstrdup(refname); ref->object = parse_object(sha1); switch (ref->object->type) { case OBJ_TAG: ref->tag = cgit_parse_tag((struct tag *)ref->object); break; case OBJ_COMMIT: ref->commit = cgit_parse_commit((struct commit *)ref->object); break; } return ref; } static void cgit_free_taginfo(struct taginfo *tag) { if (tag->tagger) free(tag->tagger); if (tag->tagger_email) free(tag->tagger_email); if (tag->msg) free(tag->msg); free(tag); } static void cgit_free_refinfo(struct refinfo *ref) { if (ref->refname) free((char *)ref->refname); switch (ref->object->type) { case OBJ_TAG: cgit_free_taginfo(ref->tag); break; case OBJ_COMMIT: cgit_free_commitinfo(ref->commit); break; } free(ref); } void cgit_free_reflist_inner(struct reflist *list) { int i; for (i = 0; i < list->count; i++) { cgit_free_refinfo(list->refs[i]); } free(list->refs); } int cgit_refs_cb(const char *refname, const unsigned char *sha1, int flags, void *cb_data) { struct reflist *list = (struct reflist *)cb_data; struct refinfo *info = cgit_mk_refinfo(refname, sha1); if (info) cgit_add_ref(list, info); return 0; } static void cgit_diff_tree_cb(struct diff_queue_struct *q, struct diff_options *options, void *data) { int i; for (i = 0; i < q->nr; i++) { if (q->queue[i]->status == 'U') continue; ((filepair_fn)data)(q->queue[i]); } } static int load_mmfile(mmfile_t *file, const unsigned char *sha1) { enum object_type type; if (is_null_sha1(sha1)) { file->ptr = (char *)""; file->size = 0; } else { file->ptr = read_sha1_file(sha1, &type, (unsigned long *)&file->size); } return 1; } /* * Receive diff-buffers from xdiff and concatenate them as * needed across multiple callbacks. * * This is basically a copy of xdiff-interface.c/xdiff_outf(), * ripped from git and modified to use globals instead of * a special callback-struct. */ char *diffbuf = NULL; int buflen = 0; static int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf) { int i; for (i = 0; i < nbuf; i++) { if (mb[i].ptr[mb[i].size-1] != '\n') { /* Incomplete line */ diffbuf = xrealloc(diffbuf, buflen + mb[i].size); memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size); buflen += mb[i].size; continue; } /* we have a complete line */ if (!diffbuf) { ((linediff_fn)priv)(mb[i].ptr, mb[i].size); continue; } diffbuf = xrealloc(diffbuf, buflen + mb[i].size); memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size); ((linediff_fn)priv)(diffbuf, buflen + mb[i].size); free(diffbuf); diffbuf = NULL; buflen = 0; } if (diffbuf) { ((linediff_fn)priv)(diffbuf, buflen); free(diffbuf); diffbuf = NULL; buflen = 0; } return 0; } int cgit_diff_files(const unsigned char *old_sha1, const unsigned char *new_sha1, unsigned long *old_size, unsigned long *new_size, int *binary, int context, int ignorews, linediff_fn fn) { mmfile_t file1, file2; xpparam_t diff_params; xdemitconf_t emit_params; xdemitcb_t emit_cb; if (!load_mmfile(&file1, old_sha1) || !load_mmfile(&file2, new_sha1)) return 1; *old_size = file1.size; *new_size = file2.size; if ((file1.ptr && buffer_is_binary(file1.ptr, file1.size)) || (file2.ptr && buffer_is_binary(file2.ptr, file2.size))) { *binary = 1; if (file1.size) free(file1.ptr); if (file2.size) free(file2.ptr); return 0; } memset(&diff_params, 0, sizeof(diff_params)); memset(&emit_params, 0, sizeof(emit_params)); memset(&emit_cb, 0, sizeof(emit_cb)); diff_params.flags = XDF_NEED_MINIMAL; if (ignorews) diff_params.flags |= XDF_IGNORE_WHITESPACE; emit_params.ctxlen = context > 0 ? context : 3; emit_params.flags = XDL_EMIT_FUNCNAMES; emit_cb.outf = filediff_cb; emit_cb.priv = fn; xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb); if (file1.size) free(file1.ptr); if (file2.size) free(file2.ptr); return 0; } void cgit_diff_tree(const unsigned char *old_sha1, const unsigned char *new_sha1, filepair_fn fn, const char *prefix, int ignorews) { struct diff_options opt; struct pathspec_item item; diff_setup(&opt); opt.output_format = DIFF_FORMAT_CALLBACK; opt.detect_rename = 1; opt.rename_limit = ctx.cfg.renamelimit; DIFF_OPT_SET(&opt, RECURSIVE); if (ignorews) DIFF_XDL_SET(&opt, IGNORE_WHITESPACE); opt.format_callback = cgit_diff_tree_cb; opt.format_callback_data = fn; if (prefix) { item.match = prefix; item.len = strlen(prefix); opt.pathspec.nr = 1; opt.pathspec.items = &item; } diff_setup_done(&opt); if (old_sha1 && !is_null_sha1(old_sha1)) diff_tree_sha1(old_sha1, new_sha1, "", &opt); else diff_root_tree_sha1(new_sha1, "", &opt); diffcore_std(&opt); diff_flush(&opt); } void cgit_diff_commit(struct commit *commit, filepair_fn fn, const char *prefix) { unsigned char *old_sha1 = NULL; if (commit->parents) old_sha1 = commit->parents->item->object.sha1; cgit_diff_tree(old_sha1, commit->object.sha1, fn, prefix, ctx.qry.ignorews); } int cgit_parse_snapshots_mask(const char *str) { const struct cgit_snapshot_format *f; static const char *delim = " \t,:/|;"; int tl, sl, rv = 0; /* favor legacy setting */ if (atoi(str)) return 1; for (;;) { str += strspn(str, delim); tl = strcspn(str, delim); if (!tl) break; for (f = cgit_snapshot_formats; f->suffix; f++) { sl = strlen(f->suffix); if ((tl == sl && !strncmp(f->suffix, str, tl)) || (tl == sl - 1 && !strncmp(f->suffix + 1, str, tl - 1))) { rv |= f->bit; break; } } str += tl; } return rv; } typedef struct { char * name; char * value; } cgit_env_var; void cgit_prepare_repo_env(struct cgit_repo * repo) { cgit_env_var env_vars[] = { { .name = "CGIT_REPO_URL", .value = repo->url }, { .name = "CGIT_REPO_NAME", .value = repo->name }, { .name = "CGIT_REPO_PATH", .value = repo->path }, { .name = "CGIT_REPO_OWNER", .value = repo->owner }, { .name = "CGIT_REPO_DEFBRANCH", .value = repo->defbranch }, { .name = "CGIT_REPO_SECTION", .value = repo->section }, { .name = "CGIT_REPO_CLONE_URL", .value = repo->clone_url } }; int env_var_count = ARRAY_SIZE(env_vars); cgit_env_var *p, *q; static char *warn = "cgit warning: failed to set env: %s=%s\n"; p = env_vars; q = p + env_var_count; for (; p < q; p++) if (p->value && setenv(p->name, p->value, 1)) fprintf(stderr, warn, p->name, p->value); } int cgit_open_filter(struct cgit_filter *filter) { filter->old_stdout = chk_positive(dup(STDOUT_FILENO), "Unable to duplicate STDOUT"); chk_zero(pipe(filter->pipe_fh), "Unable to create pipe to subprocess"); filter->pid = chk_non_negative(fork(), "Unable to create subprocess"); if (filter->pid == 0) { close(filter->pipe_fh[1]); chk_non_negative(dup2(filter->pipe_fh[0], STDIN_FILENO), "Unable to use pipe as STDIN"); execvp(filter->cmd, filter->argv); die("Unable to exec subprocess %s: %s (%d)", filter->cmd, strerror(errno), errno); } close(filter->pipe_fh[0]); chk_non_negative(dup2(filter->pipe_fh[1], STDOUT_FILENO), "Unable to use pipe as STDOUT"); close(filter->pipe_fh[1]); return 0; } int cgit_close_filter(struct cgit_filter *filter) { chk_non_negative(dup2(filter->old_stdout, STDOUT_FILENO), "Unable to restore STDOUT"); close(filter->old_stdout); if (filter->pid < 0) return 0; waitpid(filter->pid, &filter->exitstatus, 0); if (WIFEXITED(filter->exitstatus) && !WEXITSTATUS(filter->exitstatus)) return 0; die("Subprocess %s exited abnormally", filter->cmd); } /* Read the content of the specified file into a newly allocated buffer, * zeroterminate the buffer and return 0 on success, errno otherwise. */ int readfile(const char *path, char **buf, size_t *size) { int fd, e; struct stat st; fd = open(path, O_RDONLY); if (fd == -1) return errno; if (fstat(fd, &st)) { e = errno; close(fd); return e; } if (!S_ISREG(st.st_mode)) { close(fd); return EISDIR; } *buf = xmalloc(st.st_size + 1); *size = read_in_full(fd, *buf, st.st_size); e = errno; (*buf)[*size] = '\0'; close(fd); return (*size == st.st_size ? 0 : e); } static int is_token_char(char c) { return isalnum(c) || c == '_'; } /* Replace name with getenv(name), return pointer to zero-terminating char */ static char *expand_macro(char *name, int maxlength) { char *value; int len; len = 0; value = getenv(name); if (value) { len = strlen(value); if (len > maxlength) len = maxlength; strncpy(name, value, len); } return name + len; } #define EXPBUFSIZE (1024 * 8) /* Replace all tokens prefixed by '$' in the specified text with the * value of the named environment variable. * NB: the return value is a static buffer, i.e. it must be strdup'd * by the caller. */ char *expand_macros(const char *txt) { static char result[EXPBUFSIZE]; char *p, *start; int len; p = result; start = NULL; while (p < result + EXPBUFSIZE - 1 && txt && *txt) { *p = *txt; if (start) { if (!is_token_char(*txt)) { if (p - start > 0) { *p = '\0'; len = result + EXPBUFSIZE - start - 1; p = expand_macro(start, len) - 1; } start = NULL; txt--; } p++; txt++; continue; } if (*txt == '$') { start = p; txt++; continue; } p++; txt++; } *p = '\0'; if (start && p - start > 0) { len = result + EXPBUFSIZE - start - 1; p = expand_macro(start, len); *p = '\0'; } return result; }